January 2024 - Kernel - mailweb.openeuler.org

[PATCH OLK-6.6] pciehp: fix a race between pciehp and removing operations by sysfs
by Xiongfeng Wang 25 Jan '24

25 Jan '24

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8YPFU CVE: NA ------------------------------------------------- When I run a stress test about pcie hotplug and removing operations by sysfs, I got a hange task, and the following call trace is printed. INFO: task irq/746-pciehp:41551 blocked for more than 120 seconds. Tainted: P W OE 4.19.25- "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. irq/746-pciehp D 0 41551 2 0x00000228 Call trace: __switch_to+0x94/0xe8 __schedule+0x270/0x8b0 schedule+0x2c/0x88 schedule_preempt_disabled+0x14/0x20 __mutex_lock.isra.1+0x1fc/0x540 __mutex_lock_slowpath+0x24/0x30 mutex_lock+0x80/0xa8 pci_lock_rescan_remove+0x20/0x28 pciehp_configure_device+0x30/0x140 pciehp_handle_presence_or_link_change+0x35c/0x4b0 pciehp_ist+0x1cc/0x1d0 irq_thread_fn+0x30/0x80 irq_thread+0x128/0x200 kthread+0x134/0x138 ret_from_fork+0x10/0x18 INFO: task bash:6424 blocked for more than 120 seconds. Tainted: P W OE 4.19.25- "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. bash D 0 6424 2231 0x00000200 Call trace: __switch_to+0x94/0xe8 __schedule+0x270/0x8b0 schedule+0x2c/0x88 schedule_timeout+0x224/0x448 wait_for_common+0x198/0x2a0 wait_for_completion+0x28/0x38 kthread_stop+0x60/0x190 __free_irq+0x1c0/0x348 free_irq+0x40/0x88 pcie_shutdown_notification+0x54/0x80 pciehp_remove+0x30/0x50 pcie_port_remove_service+0x3c/0x58 device_release_driver_internal+0x1b4/0x250 device_release_driver+0x28/0x38 bus_remove_device+0xd4/0x160 device_del+0x128/0x348 device_unregister+0x24/0x78 remove_iter+0x48/0x58 device_for_each_child+0x6c/0xb8 pcie_port_device_remove+0x2c/0x48 pcie_portdrv_remove+0x5c/0x68 pci_device_remove+0x48/0xd8 device_release_driver_internal+0x1b4/0x250 device_release_driver+0x28/0x38 pci_stop_bus_device+0x84/0xb8 pci_stop_and_remove_bus_device_locked+0x24/0x40 remove_store+0xa4/0xb8 dev_attr_store+0x44/0x60 sysfs_kf_write+0x58/0x80 kernfs_fop_write+0xe8/0x1f0 __vfs_write+0x60/0x190 vfs_write+0xac/0x1c0 ksys_write+0x6c/0xd8 __arm64_sys_write+0x24/0x30 el0_svc_common+0xa0/0x180 el0_svc_handler+0x38/0x78 el0_svc+0x8/0xc When we remove a slot by sysfs. 'pci_stop_and_remove_bus_device_locked()' will be called. This function will get the global mutex lock 'pci_rescan_remove_lock', and remove the slot. If the irq thread 'pciehp_ist' is still running, we will wait until it exits. If a pciehp interrupt happens immediately after we remove the slot by sysfs, but before we free the pciehp irq in 'pci_stop_and_remove_bus_device_locked()'. 'pciehp_ist' will hung because the global mutex lock 'pci_rescan_remove_lock' is held by the sysfs operation. But the sysfs operation is waiting for the pciehp irq thread 'pciehp_ist' ends. Then a hung task occurs. So this two kinds of operation, removing through attention buttion and removing through /sys/devices/pci***/remove, should not be excuted at the same time. This patch add a global variable to mark that one of these operations is under processing. When this variable is set, if another operation is requested, it will be rejected. We use a global variable 'slot_being_removed_rescaned' to mark whether a slot is being removed or rescaned. This will cause a slot hotplug operation is delayed if another slot is being remove or rescaned. But if these two slots are under different root ports, they should not influence each other. This patch make the flag 'slot_being_removed_rescanned' per root port so that one slot hotplug operation doesn't influence slots below another root port. We record the root port in struct pci_dev when the pci device is initialized and added into the system instead of using 'pcie_find_root_port()' to find the root port when we need it. Because iterating the pci tree needs the protection of 'pci_lock_rescan_remove()'. This will make the problem more complexed because the lock is very coarse-grained. We don't need to worry about 'use-after-free' because child pci devices are always removed before the root port device is removed. Signed-off-by: Xiongfeng Wang <wangxiongfeng2(a)huawei.com> Reviewed-by: Hanjun Guo <guohanjun(a)huawei.com> Conflicts: drivers/pci/hotplug/pciehp_ctrl.c drivers/pci/hotplug/pciehp_hpc.c include/linux/pci.h Signed-off-by: Xiongfeng Wang <wangxiongfeng2(a)huawei.com> --- drivers/pci/hotplug/pciehp.h | 5 ++ drivers/pci/hotplug/pciehp_ctrl.c | 40 ++++++++++++++++ drivers/pci/hotplug/pciehp_hpc.c | 79 ++++++++++++++++++++++++++----- drivers/pci/pci-sysfs.c | 22 +++++++++ drivers/pci/probe.c | 5 ++ include/linux/pci.h | 8 ++++ include/linux/workqueue.h | 2 + 7 files changed, 150 insertions(+), 11 deletions(-) diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h index e0a614acee05..dad48d151ce2 100644 --- a/drivers/pci/hotplug/pciehp.h +++ b/drivers/pci/hotplug/pciehp.h @@ -199,6 +199,11 @@ static inline const char *slot_name(struct controller *ctrl) return hotplug_slot_name(&ctrl->hotplug_slot); } +static inline struct pci_dev *ctrl_dev(struct controller *ctrl) +{ + return ctrl->pcie->port; +} + static inline struct controller *to_ctrl(struct hotplug_slot *hotplug_slot) { return container_of(hotplug_slot, struct controller, hotplug_slot); diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c index dcdbfcf404dd..458ab6f6379c 100644 --- a/drivers/pci/hotplug/pciehp_ctrl.c +++ b/drivers/pci/hotplug/pciehp_ctrl.c @@ -143,6 +143,8 @@ void pciehp_queue_pushbutton_work(struct work_struct *work) { struct controller *ctrl = container_of(work, struct controller, button_work.work); + int events = ctrl->button_work.data; + struct pci_dev *rpdev = ctrl_dev(ctrl)->rpdev; mutex_lock(&ctrl->state_lock); switch (ctrl->state) { @@ -153,6 +155,15 @@ void pciehp_queue_pushbutton_work(struct work_struct *work) pciehp_request(ctrl, PCI_EXP_SLTSTA_PDC); break; default: + if (events) { + atomic_or(events, &ctrl->pending_events); + if (!pciehp_poll_mode) + irq_wake_thread(ctrl->pcie->irq, ctrl); + } else { + if (rpdev) + clear_bit(0, + &rpdev->slot_being_removed_rescanned); + } break; } mutex_unlock(&ctrl->state_lock); @@ -160,6 +171,8 @@ void pciehp_queue_pushbutton_work(struct work_struct *work) void pciehp_handle_button_press(struct controller *ctrl) { + struct pci_dev *rpdev = ctrl_dev(ctrl)->rpdev; + mutex_lock(&ctrl->state_lock); switch (ctrl->state) { case OFF_STATE: @@ -176,6 +189,7 @@ void pciehp_handle_button_press(struct controller *ctrl) /* blink power indicator and turn off attention */ pciehp_set_indicators(ctrl, PCI_EXP_SLTCTL_PWR_IND_BLINK, PCI_EXP_SLTCTL_ATTN_IND_OFF); + ctrl->button_work.data = 0; schedule_delayed_work(&ctrl->button_work, 5 * HZ); break; case BLINKINGOFF_STATE: @@ -199,10 +213,14 @@ void pciehp_handle_button_press(struct controller *ctrl) ctrl_info(ctrl, "Slot(%s): Button press: canceling request to power on\n", slot_name(ctrl)); } + if (rpdev) + clear_bit(0, &rpdev->slot_being_removed_rescanned); break; default: ctrl_err(ctrl, "Slot(%s): Button press: ignoring invalid state %#x\n", slot_name(ctrl), ctrl->state); + if (rpdev) + clear_bit(0, &rpdev->slot_being_removed_rescanned); break; } mutex_unlock(&ctrl->state_lock); @@ -210,6 +228,8 @@ void pciehp_handle_button_press(struct controller *ctrl) void pciehp_handle_disable_request(struct controller *ctrl) { + struct pci_dev *rpdev = ctrl_dev(ctrl)->rpdev; + mutex_lock(&ctrl->state_lock); switch (ctrl->state) { case BLINKINGON_STATE: @@ -221,11 +241,14 @@ void pciehp_handle_disable_request(struct controller *ctrl) mutex_unlock(&ctrl->state_lock); ctrl->request_result = pciehp_disable_slot(ctrl, SAFE_REMOVAL); + if (rpdev) + clear_bit(0, &rpdev->slot_being_removed_rescanned); } void pciehp_handle_presence_or_link_change(struct controller *ctrl, u32 events) { int present, link_active; + struct pci_dev *rpdev = ctrl_dev(ctrl)->rpdev; /* * If the slot is on and presence or link has changed, turn it off. @@ -266,6 +289,8 @@ void pciehp_handle_presence_or_link_change(struct controller *ctrl, u32 events) slot_name(ctrl)); } mutex_unlock(&ctrl->state_lock); + if (rpdev) + clear_bit(0, &rpdev->slot_being_removed_rescanned); return; } @@ -288,6 +313,8 @@ void pciehp_handle_presence_or_link_change(struct controller *ctrl, u32 events) mutex_unlock(&ctrl->state_lock); break; } + if (rpdev) + clear_bit(0, &rpdev->slot_being_removed_rescanned); } static int __pciehp_enable_slot(struct controller *ctrl) @@ -408,6 +435,14 @@ int pciehp_sysfs_enable_slot(struct hotplug_slot *hotplug_slot) int pciehp_sysfs_disable_slot(struct hotplug_slot *hotplug_slot) { struct controller *ctrl = to_ctrl(hotplug_slot); + struct pci_dev *rpdev = ctrl_dev(ctrl)->rpdev; + + if (rpdev && test_and_set_bit(0, + &rpdev->slot_being_removed_rescanned)) { + ctrl_info(ctrl, "Slot(%s): Slot is being removed or rescanned, please try later!\n", + slot_name(ctrl)); + return -EINVAL; + } mutex_lock(&ctrl->state_lock); switch (ctrl->state) { @@ -418,6 +453,8 @@ int pciehp_sysfs_disable_slot(struct hotplug_slot *hotplug_slot) wait_event(ctrl->requester, !atomic_read(&ctrl->pending_events) && !ctrl->ist_running); + if (rpdev) + clear_bit(0, &rpdev->slot_being_removed_rescanned); return ctrl->request_result; case POWEROFF_STATE: ctrl_info(ctrl, "Slot(%s): Already in powering off state\n", @@ -436,5 +473,8 @@ int pciehp_sysfs_disable_slot(struct hotplug_slot *hotplug_slot) } mutex_unlock(&ctrl->state_lock); + if (rpdev) + clear_bit(0, &rpdev->slot_being_removed_rescanned); + return -ENODEV; } diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c index fd713abdfb9f..a0fdcd4dc358 100644 --- a/drivers/pci/hotplug/pciehp_hpc.c +++ b/drivers/pci/hotplug/pciehp_hpc.c @@ -45,11 +45,6 @@ static const struct dmi_system_id inband_presence_disabled_dmi_table[] = { {} }; -static inline struct pci_dev *ctrl_dev(struct controller *ctrl) -{ - return ctrl->pcie->port; -} - static irqreturn_t pciehp_isr(int irq, void *dev_id); static irqreturn_t pciehp_ist(int irq, void *dev_id); static int pciehp_poll(void *data); @@ -694,6 +689,7 @@ static irqreturn_t pciehp_ist(int irq, void *dev_id) { struct controller *ctrl = (struct controller *)dev_id; struct pci_dev *pdev = ctrl_dev(ctrl); + struct pci_dev *rpdev = pdev->rpdev; irqreturn_t ret; u32 events; @@ -716,8 +712,20 @@ static irqreturn_t pciehp_ist(int irq, void *dev_id) } /* Check Attention Button Pressed */ - if (events & PCI_EXP_SLTSTA_ABP) - pciehp_handle_button_press(ctrl); + if (events & PCI_EXP_SLTSTA_ABP) { + if (!rpdev || (rpdev && !test_and_set_bit(0, + &rpdev->slot_being_removed_rescanned))) + pciehp_handle_button_press(ctrl); + else { + if (ctrl->state == BLINKINGOFF_STATE || + ctrl->state == BLINKINGON_STATE) + pciehp_handle_button_press(ctrl); + else + ctrl_info(ctrl, "Slot(%s): Slot operation failed because a remove or" + " rescan operation is under processing, please try later!\n", + slot_name(ctrl)); + } + } /* Check Power Fault Detected */ if (events & PCI_EXP_SLTSTA_PFD) { @@ -741,10 +749,59 @@ static irqreturn_t pciehp_ist(int irq, void *dev_id) * or Data Link Layer State Changed events. */ down_read_nested(&ctrl->reset_lock, ctrl->depth); - if (events & DISABLE_SLOT) - pciehp_handle_disable_request(ctrl); - else if (events & (PCI_EXP_SLTSTA_PDC | PCI_EXP_SLTSTA_DLLSC)) - pciehp_handle_presence_or_link_change(ctrl, events); + if (events & DISABLE_SLOT) { + if (!rpdev || (rpdev && !test_and_set_bit(0, + &rpdev->slot_being_removed_rescanned))) + pciehp_handle_disable_request(ctrl); + else { + if (ctrl->state == BLINKINGOFF_STATE || + ctrl->state == BLINKINGON_STATE) + pciehp_handle_disable_request(ctrl); + else { + ctrl_info(ctrl, "Slot(%s): DISABLE_SLOT event in remove or rescan process!\n", + slot_name(ctrl)); + /* + * we use the work_struct private data to store + * the event type + */ + ctrl->button_work.data = DISABLE_SLOT; + /* + * If 'work.timer' is pending, schedule the work will + * cause BUG_ON(). + */ + if (!timer_pending(&ctrl->button_work.timer)) + schedule_delayed_work(&ctrl->button_work, 3 * HZ); + else + ctrl_info(ctrl, "Slot(%s): Didn't schedule delayed_work because timer is pending!\n", + slot_name(ctrl)); + } + } + } else if (events & (PCI_EXP_SLTSTA_PDC | PCI_EXP_SLTSTA_DLLSC)) { + if (!rpdev || (rpdev && !test_and_set_bit(0, + &rpdev->slot_being_removed_rescanned))) + pciehp_handle_presence_or_link_change(ctrl, events); + else { + if (ctrl->state == BLINKINGOFF_STATE || + ctrl->state == BLINKINGON_STATE) + pciehp_handle_presence_or_link_change(ctrl, + events); + else { + /* + * When we are removing or rescanning through + * sysfs, suprise link down/up happens. So we + * will handle this event 3 seconds later. + */ + ctrl_info(ctrl, "Slot(%s): Surprise link down/up in remove or rescan process!\n", + slot_name(ctrl)); + ctrl->button_work.data = events & (PCI_EXP_SLTSTA_PDC | PCI_EXP_SLTSTA_DLLSC); + if (!timer_pending(&ctrl->button_work.timer)) + schedule_delayed_work(&ctrl->button_work, 3 * HZ); + else + ctrl_info(ctrl, "Slot(%s): Didn't schedule delayed_work because timer is pending!\n", + slot_name(ctrl)); + } + } + } up_read(&ctrl->reset_lock); ret = IRQ_HANDLED; diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index 3317b9354716..156f97c9c696 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -483,12 +483,34 @@ static ssize_t remove_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { unsigned long val; + struct pci_dev *rpdev = to_pci_dev(dev)->rpdev; if (kstrtoul(buf, 0, &val) < 0) return -EINVAL; + if (rpdev && test_and_set_bit(0, + &rpdev->slot_being_removed_rescanned)) { + pr_info("Slot is being removed or rescanned, please try later!\n"); + return -EINVAL; + } + + /* + * if 'dev' is root port itself, 'pci_stop_and_remove_bus_device()' may + * free the 'rpdev', but we need to clear + * 'rpdev->slot_being_removed_rescanned' in the end. So get 'rpdev' to + * avoid possible 'use-after-free'. + */ + if (rpdev) + pci_dev_get(rpdev); + if (val && device_remove_file_self(dev, attr)) pci_stop_and_remove_bus_device_locked(to_pci_dev(dev)); + + if (rpdev) { + clear_bit(0, &rpdev->slot_being_removed_rescanned); + pci_dev_put(rpdev); + } + return count; } static DEVICE_ATTR_IGNORE_LOCKDEP(remove, 0220, NULL, diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 43159965e09e..9dfb9d22b1f6 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -2578,6 +2578,11 @@ void pci_device_add(struct pci_dev *dev, struct pci_bus *bus) /* Set up MSI IRQ domain */ pci_set_msi_domain(dev); + if (pci_pcie_type(dev) == PCI_EXP_TYPE_ROOT_PORT) + dev->rpdev = dev; + else + dev->rpdev = pcie_find_root_port(dev); + /* Notifier could use PCI capabilities */ dev->match_driver = false; ret = device_add(&dev->dev); diff --git a/include/linux/pci.h b/include/linux/pci.h index b56417276042..bf1de133c569 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -529,6 +529,13 @@ struct pci_dev { /* These methods index pci_reset_fn_methods[] */ u8 reset_methods[PCI_NUM_RESET_METHODS]; /* In priority order */ + + /* + * This flag is only set on root ports. When a slot below a root port + * is being removed or rescanned, this flag is set. + */ + unsigned long slot_being_removed_rescanned; + struct pci_dev *rpdev; /* root port pci_dev */ }; static inline struct pci_dev *pci_physfn(struct pci_dev *dev) @@ -1081,6 +1088,7 @@ extern struct bus_type pci_bus_type; /* Do NOT directly access these two variables, unless you are arch-specific PCI * code, or PCI core code. */ extern struct list_head pci_root_buses; /* List of all known PCI buses */ + /* Some device drivers need know if PCI is initiated */ int no_pci_devices(void); diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h index 24b1e5070f4d..571dd2ec4381 100644 --- a/include/linux/workqueue.h +++ b/include/linux/workqueue.h @@ -115,6 +115,8 @@ struct delayed_work { /* target workqueue and CPU ->timer uses to queue ->work */ struct workqueue_struct *wq; int cpu; + /* delayed_work private data, only used in pciehp now */ + unsigned long data; }; struct rcu_work { -- 2.20.1

2 1

[openeuler:OLK-6.6 1359/2707] mm/share_pool.c:1226:21: error: implicit declaration of function 'huge_ptep_get'
by kernel test robot 25 Jan '24

25 Jan '24

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: e076c150c75c29fb99c2e7d8ae567b7ed6cce8b3 commit: 549b1f40b56511536196f7522ffa4d7b3da42337 [1359/2707] mm/sharepool: Implement mg_sp_make_share_u2k() config: arm64-randconfig-002-20240125 (https://download.01.org/0day-ci/archive/20240125/202401250925.wptU5r3b-lkp@…) compiler: aarch64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240125/202401250925.wptU5r3b-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202401250925.wptU5r3b-lkp@intel.com/ All errors (new ones prefixed by >>): mm/share_pool.c: In function 'sp_hugetlb_entry': >> mm/share_pool.c:1226:21: error: implicit declaration of function 'huge_ptep_get' [-Werror=implicit-function-declaration] 1226 | pte_t pte = huge_ptep_get(ptep); | ^~~~~~~~~~~~~ >> mm/share_pool.c:1226:21: error: invalid initializer mm/share_pool.c: At top level: mm/share_pool.c:1005:13: warning: 'sp_area_put_locked' defined but not used [-Wunused-function] 1005 | static void sp_area_put_locked(struct sp_area *spa) | ^~~~~~~~~~~~~~~~~~ mm/share_pool.c:944:24: warning: 'sp_area_get' defined but not used [-Wunused-function] 944 | static struct sp_area *sp_area_get(struct sp_group *spg, | ^~~~~~~~~~~ mm/share_pool.c:791:24: warning: 'sp_area_alloc' defined but not used [-Wunused-function] 791 | static struct sp_area *sp_area_alloc(unsigned long size, unsigned long flags, | ^~~~~~~~~~~~~ mm/share_pool.c:587:21: warning: 'spa_file' defined but not used [-Wunused-function] 587 | static struct file *spa_file(struct sp_area *spa) | ^~~~~~~~ mm/share_pool.c:582:22: warning: 'spa_size' defined but not used [-Wunused-function] 582 | static unsigned long spa_size(struct sp_area *spa) | ^~~~~~~~ mm/share_pool.c:497:13: warning: 'update_mem_usage_k2u' defined but not used [-Wunused-function] 497 | static void update_mem_usage_k2u(unsigned long size, bool inc, | ^~~~~~~~~~~~~~~~~~~~ mm/share_pool.c:485:13: warning: 'update_mem_usage_alloc' defined but not used [-Wunused-function] 485 | static void update_mem_usage_alloc(unsigned long size, bool inc, | ^~~~~~~~~~~~~~~~~~~~~~ mm/share_pool.c:438:12: warning: 'sp_group_setup_mapping_normal' defined but not used [-Wunused-function] 438 | static int sp_group_setup_mapping_normal(struct mm_struct *mm, struct sp_group *spg) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ mm/share_pool.c:380:13: warning: 'sp_mapping_detach' defined but not used [-Wunused-function] 380 | static void sp_mapping_detach(struct sp_group *spg, struct sp_mapping *spm) | ^~~~~~~~~~~~~~~~~ mm/share_pool.c:237:13: warning: 'meminfo_init' defined but not used [-Wunused-function] 237 | static void meminfo_init(struct sp_meminfo *meminfo) | ^~~~~~~~~~~~ In file included from mm/share_pool.c:26: mm/share_pool.c:76:19: warning: 'sp_group_idr' defined but not used [-Wunused-variable] 76 | static DEFINE_IDR(sp_group_idr); | ^~~~~~~~~~~~ include/linux/idr.h:56:44: note: in definition of macro 'DEFINE_IDR' 56 | #define DEFINE_IDR(name) struct idr name = IDR_INIT(name) | ^~~~ mm/share_pool.c:73:12: warning: 'system_group_count' defined but not used [-Wunused-variable] 73 | static int system_group_count; | ^~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/huge_ptep_get +1226 mm/share_pool.c 1221 1222 static int sp_hugetlb_entry(pte_t *ptep, unsigned long hmask, 1223 unsigned long addr, unsigned long next, 1224 struct mm_walk *walk) 1225 { > 1226 pte_t pte = huge_ptep_get(ptep); 1227 struct page *page = pte_page(pte); 1228 struct sp_walk_data *sp_walk_data; 1229 1230 if (unlikely(!pte_present(pte))) { 1231 pr_debug("the page of addr %lx unexpectedly not in RAM\n", (unsigned long)addr); 1232 return -EFAULT; 1233 } 1234 1235 sp_walk_data = walk->private; 1236 get_page(page); 1237 sp_walk_data->pages[sp_walk_data->page_count++] = page; 1238 return 0; 1239 } 1240 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-6.6] tracing: Reserve kabi fields
by Zheng Yejian 25 Jan '24

25 Jan '24

hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I8YPFE CVE: NA -------------------------------- Signed-off-by: Zheng Yejian <zhengyejian1(a)huawei.com> --- include/linux/ftrace.h | 3 +++ include/linux/trace_events.h | 3 +++ include/linux/tracepoint-defs.h | 2 ++ kernel/trace/ring_buffer.c | 7 +++++++ kernel/trace/trace.h | 6 ++++++ 5 files changed, 21 insertions(+) diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index e8921871ef9a..56892db7de5c 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -21,6 +21,7 @@ #include <linux/fs.h> #include <asm/ftrace.h> +#include <linux/kabi.h> /* * If the arch supports passing the variable contents of @@ -340,6 +341,8 @@ struct ftrace_ops { unsigned long direct_call; #endif #endif + KABI_RESERVE(1) + KABI_RESERVE(2) }; extern struct ftrace_ops __rcu *ftrace_ops_list; diff --git a/include/linux/trace_events.h b/include/linux/trace_events.h index cf9f0c61796e..172cf91a45de 100644 --- a/include/linux/trace_events.h +++ b/include/linux/trace_events.h @@ -9,6 +9,7 @@ #include <linux/hardirq.h> #include <linux/perf_event.h> #include <linux/tracepoint.h> +#include <linux/kabi.h> struct trace_array; struct array_buffer; @@ -677,6 +678,8 @@ struct trace_event_file { atomic_t ref; /* ref count for opened files */ atomic_t sm_ref; /* soft-mode reference counter */ atomic_t tm_ref; /* trigger-mode reference counter */ + KABI_RESERVE(1) + KABI_RESERVE(2) }; #define __TRACE_EVENT_FLAGS(name, value) \ diff --git a/include/linux/tracepoint-defs.h b/include/linux/tracepoint-defs.h index 4dc4955f0fbf..b2b29dc8f259 100644 --- a/include/linux/tracepoint-defs.h +++ b/include/linux/tracepoint-defs.h @@ -10,6 +10,7 @@ #include <linux/atomic.h> #include <linux/static_key.h> +#include <linux/kabi.h> struct static_call_key; @@ -39,6 +40,7 @@ struct tracepoint { int (*regfunc)(void); void (*unregfunc)(void); struct tracepoint_func __rcu *funcs; + KABI_RESERVE(1) }; #ifdef CONFIG_HAVE_ARCH_PREL32_RELOCATIONS diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index f1ef4329343b..e70aa61539dc 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -28,6 +28,7 @@ #include <linux/oom.h> #include <asm/local.h> +#include <linux/kabi.h> /* * The "absolute" timestamp in the buffer is only 59 bits. @@ -537,6 +538,9 @@ struct ring_buffer_per_cpu { struct completion update_done; struct rb_irq_work irq_work; + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) }; struct trace_buffer { @@ -571,6 +575,9 @@ struct ring_buffer_iter { u64 page_stamp; struct ring_buffer_event *event; int missed_events; + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) }; #ifdef RB_TIME_32 diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 52123df262b2..8eebd99cbb89 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -21,6 +21,7 @@ #include <linux/workqueue.h> #include <linux/ctype.h> #include <linux/once_lite.h> +#include <linux/kabi.h> #include "pid_list.h" @@ -410,6 +411,9 @@ struct trace_array { struct cond_snapshot *cond_snapshot; #endif struct trace_func_repeats __percpu *last_func_repeats; + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) }; enum { @@ -1326,6 +1330,8 @@ struct ftrace_event_field { int size; int is_signed; int len; + KABI_RESERVE(1) + KABI_RESERVE(2) }; struct prog_entry; -- 2.25.1

1 0

[PATCH OLK-6.6] block: remove precise_iostat
by Li Nan 25 Jan '24

25 Jan '24

hulk inclusion category: bugfix bugzilla: 189480, https://gitee.com/openeuler/kernel/issues/I8Y90H -------------------------------- Previously, we believed it would be too costly to sum all the percpu variables 'in_flight' every jiffy if we want to count io accurately. So we added switch 'precise_iostat' and set it to false be default. However, the overhead of precise_iostat is 1. inc and dev in_flight when submitting io and done io 2. read in_flight up to HZ times per second It is much lower than our previous evaluation and can be ignored. Now, turn on the switch by default. And it will be removed in the feature. Signed-off-by: Li Nan <linan122(a)huawei.com> --- block/blk-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/blk-core.c b/block/blk-core.c index 2612fb2eea77..3ea271135a6c 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -71,7 +71,7 @@ static struct kmem_cache *blk_requestq_cachep; */ static struct workqueue_struct *kblockd_workqueue; -static bool precise_iostat; +static bool precise_iostat = true; static int __init precise_iostat_setup(char *str) { -- 2.39.2

1 0

[openeuler:openEuler-1.0-LTS 21263/21567] drivers/iio/adc/phytium-adc.c:662:12: warning: 'phytium_adc_resume' defined but not used
by kernel test robot 25 Jan '24

25 Jan '24

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 0ff07578f017c011d7806126c4aaafdbf39b32fa commit: 69245da182c15b365e3b770e7ac56db0f8118165 [21263/21567] adc: add phytium adc driver config: arm64-randconfig-004-20240125 (https://download.01.org/0day-ci/archive/20240125/202401250716.GKgR8ZVW-lkp@…) compiler: aarch64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240125/202401250716.GKgR8ZVW-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202401250716.GKgR8ZVW-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/iio/adc/phytium-adc.c:662:12: warning: 'phytium_adc_resume' defined but not used [-Wunused-function] 662 | static int phytium_adc_resume(struct device *dev) | ^~~~~~~~~~~~~~~~~~ >> drivers/iio/adc/phytium-adc.c:651:12: warning: 'phytium_adc_suspend' defined but not used [-Wunused-function] 651 | static int phytium_adc_suspend(struct device *dev) | ^~~~~~~~~~~~~~~~~~~ vim +/phytium_adc_resume +662 drivers/iio/adc/phytium-adc.c 649 650 #ifdef CONFIG_PM > 651 static int phytium_adc_suspend(struct device *dev) 652 { 653 struct iio_dev *indio_dev = dev_get_drvdata(dev); 654 struct phytium_adc *adc = iio_priv(indio_dev); 655 656 phytium_adc_power_setup(adc, false); 657 clk_disable_unprepare(adc->adc_clk); 658 659 return 0; 660 } 661 > 662 static int phytium_adc_resume(struct device *dev) 663 { 664 struct iio_dev *indio_dev = dev_get_drvdata(dev); 665 struct phytium_adc *adc = iio_priv(indio_dev); 666 667 clk_prepare_enable(adc->adc_clk); 668 phytium_adc_power_setup(adc, true); 669 670 return 0; 671 } 672 #endif 673 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 2459/2707] ERROR: modpost: module zhaoxin-cputemp uses symbol hwmon_device_register_for_thermal from namespace HWMON_THERMAL, but does not import it.
by kernel test robot 25 Jan '24

25 Jan '24

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: e076c150c75c29fb99c2e7d8ae567b7ed6cce8b3 commit: 0b07c042b9308c44ddd204a05021af6f31af6543 [2459/2707] Add support for Zhaoxin core temperature monitoring config: x86_64-openeuler_defconfig-OLK-6.6-func (https://download.01.org/0day-ci/archive/20240125/202401250639.Uf4ncB7E-lkp@…) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240125/202401250639.Uf4ncB7E-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202401250639.Uf4ncB7E-lkp@intel.com/ All errors (new ones prefixed by >>, old ones prefixed by <<): WARNING: modpost: missing MODULE_DESCRIPTION() in net/802/mrp.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sched/sch_htb.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sched/sch_hfsc.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sched/sch_red.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sched/sch_gred.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sched/sch_ingress.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sched/sch_sfq.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sched/sch_tbf.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sched/sch_teql.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sched/sch_prio.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sched/sch_multiq.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sched/sch_netem.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sched/sch_drr.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sched/sch_plug.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sched/sch_mqprio.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sched/sch_mqprio_lib.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sched/sch_choke.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sched/sch_qfq.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sched/cls_u32.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sched/cls_route.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sched/cls_fw.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sched/cls_basic.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sched/em_cmp.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sched/em_nbyte.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sched/em_u32.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sched/em_meta.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sched/em_text.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/netlink/netlink_diag.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/netfilter/nfnetlink_osf.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/netfilter/nf_conntrack.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/netfilter/nf_conntrack_netlink.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/netfilter/nf_conntrack_broadcast.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/netfilter/nf_nat.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/netfilter/nf_tables.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/netfilter/nft_fib.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/netfilter/nft_chain_nat.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/netfilter/nft_fwd_netdev.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/netfilter/ipvs/ip_vs.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/netfilter/ipvs/ip_vs_rr.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/netfilter/ipvs/ip_vs_wrr.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/netfilter/ipvs/ip_vs_lc.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/netfilter/ipvs/ip_vs_wlc.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/netfilter/ipvs/ip_vs_fo.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/netfilter/ipvs/ip_vs_ovf.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/netfilter/ipvs/ip_vs_lblc.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/netfilter/ipvs/ip_vs_lblcr.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/netfilter/ipvs/ip_vs_dh.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/netfilter/ipvs/ip_vs_sh.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/netfilter/ipvs/ip_vs_sed.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/netfilter/ipvs/ip_vs_nq.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/netfilter/ipvs/ip_vs_ftp.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/netfilter/ipvs/ip_vs_pe_sip.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv4/netfilter/nf_defrag_ipv4.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv4/netfilter/nf_reject_ipv4.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv4/netfilter/iptable_nat.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv4/netfilter/iptable_raw.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv4/ip_tunnel.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv4/ipip.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv4/ip_gre.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv4/udp_tunnel.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv4/ip_vti.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv4/ah4.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv4/esp4.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv4/xfrm4_tunnel.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv4/tunnel4.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv4/inet_diag.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv4/tcp_diag.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv4/udp_diag.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv4/raw_diag.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/unix/unix_diag.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv6/netfilter/ip6table_raw.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv6/netfilter/ip6table_nat.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv6/netfilter/nf_defrag_ipv6.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv6/netfilter/nf_reject_ipv6.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv6/ah6.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv6/esp6.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv6/xfrm6_tunnel.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv6/tunnel6.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv6/mip6.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv6/sit.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ipv6/ip6_udp_tunnel.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/packet/af_packet_diag.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sunrpc/auth_gss/auth_rpcgss.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sunrpc/auth_gss/rpcsec_gss_krb5.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/8021q/8021q.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/key/af_key.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/bridge/netfilter/ebtables.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/bridge/netfilter/ebtable_broute.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/bridge/netfilter/ebtable_filter.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/bridge/netfilter/ebtable_nat.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/bridge/bridge.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/atm/atm.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/atm/lec.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/sctp/sctp_diag.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/tipc/diag.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/smc/smc_diag.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/6lowpan/6lowpan.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ieee802154/6lowpan/ieee802154_6lowpan.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/ieee802154/ieee802154_socket.o WARNING: modpost: missing MODULE_DESCRIPTION() in net/vmw_vsock/vsock_diag.o >> ERROR: modpost: module zhaoxin-cputemp uses symbol hwmon_device_register_for_thermal from namespace HWMON_THERMAL, but does not import it. -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-6.6] mm/ksm: generalize ksm_process_profit
by Nanyong Sun 24 Jan '24

24 Jan '24

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8YMGX CVE: NA -------------------------------- The ksm_process_profit() was only used by procfs before, so it is built under CONFIG_PROC_FS. Now memcg with ksm also call it, so delete the CONFIG_PROC_FS compilation dependency to make it more general. Fixes: 8bafb5eac5a6 ("memcg: support ksm merge any mode per cgroup") Signed-off-by: Nanyong Sun <sunnanyong(a)huawei.com> --- include/linux/ksm.h | 2 -- mm/ksm.c | 2 -- 2 files changed, 4 deletions(-) diff --git a/include/linux/ksm.h b/include/linux/ksm.h index c2dd786a30e1..49779f85e1da 100644 --- a/include/linux/ksm.h +++ b/include/linux/ksm.h @@ -87,9 +87,7 @@ void collect_procs_ksm(struct page *page, struct list_head *to_kill, int force_early); #endif -#ifdef CONFIG_PROC_FS long ksm_process_profit(struct mm_struct *); -#endif /* CONFIG_PROC_FS */ #else /* !CONFIG_KSM */ diff --git a/mm/ksm.c b/mm/ksm.c index 7401a6c87a4b..dba6a2eb1a3c 100644 --- a/mm/ksm.c +++ b/mm/ksm.c @@ -3106,13 +3106,11 @@ static void wait_while_offlining(void) } #endif /* CONFIG_MEMORY_HOTREMOVE */ -#ifdef CONFIG_PROC_FS long ksm_process_profit(struct mm_struct *mm) { return (long)(mm->ksm_merging_pages + mm->ksm_zero_pages) * PAGE_SIZE - mm->ksm_rmap_items * sizeof(struct ksm_rmap_item); } -#endif /* CONFIG_PROC_FS */ #ifdef CONFIG_SYSFS /* -- 2.25.1

2 1

[PATCH OLK-6.6 v2] kabi: reserve space for bpf related structures
by Pu Lehui 24 Jan '24

24 Jan '24

hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I8UOP9 -------------------------------- reserve space for bpf related structures. Signed-off-by: Pu Lehui <pulehui(a)huawei.com> --- include/linux/bpf.h | 123 ++++++++++++++++++++++++++++++ include/linux/bpf_local_storage.h | 11 +++ include/linux/bpf_verifier.h | 40 ++++++++++ include/uapi/linux/bpf.h | 22 ++++++ 4 files changed, 196 insertions(+) diff --git a/include/linux/bpf.h b/include/linux/bpf.h index 392f581af2ce..3051926802bf 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -29,6 +29,7 @@ #include <linux/rcupdate_trace.h> #include <linux/static_call.h> #include <linux/memcontrol.h> +#include <linux/kabi.h> struct bpf_verifier_env; struct bpf_verifier_log; @@ -168,6 +169,11 @@ struct bpf_map_ops { /* bpf_iter info used to open a seq_file */ const struct bpf_iter_seq_info *iter_seq_info; + + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) + KABI_RESERVE(4) }; enum { @@ -288,6 +294,11 @@ struct bpf_map { bool bypass_spec_v1; bool frozen; /* write-once; write-protected by freeze_mutex */ s64 __percpu *elem_count; + + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) + KABI_RESERVE(4) }; static inline const char *btf_field_type_name(enum btf_field_type type) @@ -664,6 +675,13 @@ enum bpf_type_flag { /* DYNPTR points to xdp_buff */ DYNPTR_TYPE_XDP = BIT(16 + BPF_BASE_TYPE_BITS), +#ifdef CONFIG_KABI_RESERVE + BPF_TYPE_FLAG_RESERVE_1 = BIT(17 + BPF_BASE_TYPE_BITS), + BPF_TYPE_FLAG_RESERVE_2 = BIT(18 + BPF_BASE_TYPE_BITS), + BPF_TYPE_FLAG_RESERVE_3 = BIT(19 + BPF_BASE_TYPE_BITS), + BPF_TYPE_FLAG_RESERVE_4 = BIT(20 + BPF_BASE_TYPE_BITS), +#endif + __BPF_TYPE_FLAG_MAX, __BPF_TYPE_LAST_FLAG = __BPF_TYPE_FLAG_MAX - 1, }; @@ -714,6 +732,12 @@ enum bpf_arg_type { ARG_PTR_TO_TIMER, /* pointer to bpf_timer */ ARG_PTR_TO_KPTR, /* pointer to referenced kptr */ ARG_PTR_TO_DYNPTR, /* pointer to bpf_dynptr. See bpf_type_flag for dynptr type */ + +#ifdef CONFIG_KABI_RESERVE + BPF_ARG_TYPE_RESERVE_1, + BPF_ARG_TYPE_RESERVE_2, +#endif + __BPF_ARG_TYPE_MAX, /* Extended arg_types. */ @@ -730,6 +754,11 @@ enum bpf_arg_type { /* Pointer to valid memory of size known at compile time. */ ARG_PTR_TO_FIXED_SIZE_MEM = MEM_FIXED_SIZE | ARG_PTR_TO_MEM, +#ifdef CONFIG_KABI_RESERVE + BPF_ARG_TYPE_RESERVE_3, + BPF_ARG_TYPE_RESERVE_4, +#endif + /* This must be the last entry. Its purpose is to ensure the enum is * wide enough to hold the higher bits reserved for bpf_type_flag. */ @@ -748,6 +777,12 @@ enum bpf_return_type { RET_PTR_TO_MEM, /* returns a pointer to memory */ RET_PTR_TO_MEM_OR_BTF_ID, /* returns a pointer to a valid memory or a btf_id */ RET_PTR_TO_BTF_ID, /* returns a pointer to a btf_id */ + +#ifdef CONFIG_KABI_RESERVE + BPF_RET_TYPE_RESERVE_1, + BPF_RET_TYPE_RESERVE_2, +#endif + __BPF_RET_TYPE_MAX, /* Extended ret_types. */ @@ -760,6 +795,11 @@ enum bpf_return_type { RET_PTR_TO_BTF_ID_OR_NULL = PTR_MAYBE_NULL | RET_PTR_TO_BTF_ID, RET_PTR_TO_BTF_ID_TRUSTED = PTR_TRUSTED | RET_PTR_TO_BTF_ID, +#ifdef CONFIG_KABI_RESERVE + BPF_RET_TYPE_RESERVE_3, + BPF_RET_TYPE_RESERVE_4, +#endif + /* This must be the last entry. Its purpose is to ensure the enum is * wide enough to hold the higher bits reserved for bpf_type_flag. */ @@ -807,6 +847,11 @@ struct bpf_func_proto { }; int *ret_btf_id; /* return value btf_id */ bool (*allowed)(const struct bpf_prog *prog); + + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) + KABI_RESERVE(4) }; /* bpf_context is intentionally undefined structure. Pointer to bpf_context is @@ -866,6 +911,12 @@ enum bpf_reg_type { PTR_TO_BUF, /* reg points to a read/write buffer */ PTR_TO_FUNC, /* reg points to a bpf program function */ CONST_PTR_TO_DYNPTR, /* reg points to a const struct bpf_dynptr */ + +#ifdef CONFIG_KABI_RESERVE + BPF_REG_TYPE_RESERVE_1, + BPF_REG_TYPE_RESERVE_2, +#endif + __BPF_REG_TYPE_MAX, /* Extended reg_types. */ @@ -875,6 +926,11 @@ enum bpf_reg_type { PTR_TO_TCP_SOCK_OR_NULL = PTR_MAYBE_NULL | PTR_TO_TCP_SOCK, PTR_TO_BTF_ID_OR_NULL = PTR_MAYBE_NULL | PTR_TO_BTF_ID, +#ifdef CONFIG_KABI_RESERVE + BPF_REG_TYPE_RESERVE_3, + BPF_REG_TYPE_RESERVE_4, +#endif + /* This must be the last entry. Its purpose is to ensure the enum is * wide enough to hold the higher bits reserved for bpf_type_flag. */ @@ -942,6 +998,11 @@ struct bpf_verifier_ops { int (*btf_struct_access)(struct bpf_verifier_log *log, const struct bpf_reg_state *reg, int off, int size); + + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) + KABI_RESERVE(4) }; struct bpf_prog_offload_ops { @@ -1001,6 +1062,9 @@ struct btf_func_model { u8 nr_args; u8 arg_size[MAX_BPF_FUNC_ARGS]; u8 arg_flags[MAX_BPF_FUNC_ARGS]; + + KABI_RESERVE(1) + KABI_RESERVE(2) }; /* Restore arguments before returning from trampoline to let original function @@ -1121,6 +1185,11 @@ struct bpf_tramp_image { struct rcu_head rcu; struct work_struct work; }; + + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) + KABI_RESERVE(4) }; struct bpf_trampoline { @@ -1149,6 +1218,11 @@ struct bpf_trampoline { /* Executable image of trampoline */ struct bpf_tramp_image *cur_image; struct module *mod; + + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) + KABI_RESERVE(4) }; struct bpf_attach_target_info { @@ -1180,6 +1254,11 @@ struct bpf_dispatcher { struct static_call_key *sc_key; void *sc_tramp; #endif + + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) + KABI_RESERVE(4) }; static __always_inline __nocfi unsigned int bpf_dispatcher_nop_func( @@ -1465,6 +1544,15 @@ struct bpf_prog_aux { struct work_struct work; struct rcu_head rcu; }; + + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) + KABI_RESERVE(4) + KABI_RESERVE(5) + KABI_RESERVE(6) + KABI_RESERVE(7) + KABI_RESERVE(8) }; struct bpf_prog { @@ -1499,6 +1587,11 @@ struct bpf_prog { DECLARE_FLEX_ARRAY(struct sock_filter, insns); DECLARE_FLEX_ARRAY(struct bpf_insn, insnsi); }; + + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) + KABI_RESERVE(4) }; struct bpf_array_aux { @@ -1507,6 +1600,11 @@ struct bpf_array_aux { struct bpf_map *map; struct mutex poke_mutex; struct work_struct work; + + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) + KABI_RESERVE(4) }; struct bpf_link { @@ -1516,6 +1614,11 @@ struct bpf_link { const struct bpf_link_ops *ops; struct bpf_prog *prog; struct work_struct work; + + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) + KABI_RESERVE(4) }; struct bpf_link_ops { @@ -1529,6 +1632,11 @@ struct bpf_link_ops { struct bpf_link_info *info); int (*update_map)(struct bpf_link *link, struct bpf_map *new_map, struct bpf_map *old_map); + + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) + KABI_RESERVE(4) }; struct bpf_tramp_link { @@ -1626,6 +1734,11 @@ struct bpf_struct_ops { struct btf_func_model func_models[BPF_STRUCT_OPS_MAX_NR_MEMBERS]; u32 type_id; u32 value_id; + + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) + KABI_RESERVE(4) }; #if defined(CONFIG_BPF_JIT) && defined(CONFIG_BPF_SYSCALL) @@ -1727,6 +1840,11 @@ struct bpf_array { DECLARE_FLEX_ARRAY(void *, ptrs) __aligned(8); DECLARE_FLEX_ARRAY(void __percpu *, pptrs) __aligned(8); }; + + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) + KABI_RESERVE(4) }; #define BPF_COMPLEXITY_LIMIT_INSNS 1000000 /* yes. 1M insns */ @@ -1822,6 +1940,11 @@ struct bpf_prog_array_item { struct bpf_cgroup_storage *cgroup_storage[MAX_BPF_CGROUP_STORAGE_TYPE]; u64 bpf_cookie; }; + + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) + KABI_RESERVE(4) }; struct bpf_prog_array { diff --git a/include/linux/bpf_local_storage.h b/include/linux/bpf_local_storage.h index 173ec7f43ed1..c2ae8788a5cb 100644 --- a/include/linux/bpf_local_storage.h +++ b/include/linux/bpf_local_storage.h @@ -14,6 +14,7 @@ #include <linux/hash.h> #include <linux/types.h> #include <linux/bpf_mem_alloc.h> +#include <linux/kabi.h> #include <uapi/linux/btf.h> #define BPF_LOCAL_STORAGE_CACHE_SIZE 16 @@ -59,6 +60,11 @@ struct bpf_local_storage_map { struct bpf_mem_alloc selem_ma; struct bpf_mem_alloc storage_ma; bool bpf_ma; + + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) + KABI_RESERVE(4) }; struct bpf_local_storage_data { @@ -94,6 +100,11 @@ struct bpf_local_storage { */ struct rcu_head rcu; raw_spinlock_t lock; /* Protect adding/removing from the "list" */ + + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) + KABI_RESERVE(4) }; /* U16_MAX is much more than enough for sk local storage diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h index b6e58dab8e27..d2b59c6d9d60 100644 --- a/include/linux/bpf_verifier.h +++ b/include/linux/bpf_verifier.h @@ -8,6 +8,7 @@ #include <linux/btf.h> /* for struct btf and btf_id() */ #include <linux/filter.h> /* for MAX_BPF_STACK */ #include <linux/tnum.h> +#include <linux/kabi.h> /* Maximum variable offset umax_value permitted when resolving memory accesses. * In practice this is far bigger than any realistic pointer offset; this limit @@ -225,6 +226,11 @@ struct bpf_reg_state { enum bpf_reg_liveness live; /* if (!precise && SCALAR_VALUE) min/max/tnum don't affect safety */ bool precise; + + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) + KABI_RESERVE(4) }; enum bpf_stack_slot_type { @@ -273,6 +279,11 @@ struct bpf_reference_state { * exiting a callback function. */ int callback_ref; + + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) + KABI_RESERVE(4) }; /* state of the program: @@ -306,6 +317,11 @@ struct bpf_func_state { struct bpf_reference_state *refs; int allocated_stack; struct bpf_stack_state *stack; + + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) + KABI_RESERVE(4) }; struct bpf_idx_pair { @@ -383,6 +399,11 @@ struct bpf_verifier_state { */ struct bpf_idx_pair *jmp_history; u32 jmp_history_cnt; + + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) + KABI_RESERVE(4) }; #define bpf_get_spilled_reg(slot, frame) \ @@ -490,6 +511,11 @@ struct bpf_insn_aux_data { * this instruction, regardless of any heuristics */ bool force_checkpoint; + + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) + KABI_RESERVE(4) }; #define MAX_USED_MAPS 64 /* max number of maps accessed by one eBPF program */ @@ -541,6 +567,11 @@ struct bpf_subprog_info { bool tail_call_reachable; bool has_ld_abs; bool is_async_cb; + + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) + KABI_RESERVE(4) }; struct bpf_verifier_env; @@ -640,6 +671,15 @@ struct bpf_verifier_env { * e.g., in reg_type_str() to generate reg_type string */ char tmp_str_buf[TMP_STR_BUF_LEN]; + + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) + KABI_RESERVE(4) + KABI_RESERVE(5) + KABI_RESERVE(6) + KABI_RESERVE(7) + KABI_RESERVE(8) }; __printf(2, 0) void bpf_verifier_vlog(struct bpf_verifier_log *log, diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h index 9dd0b85549b6..56c3fc8e4123 100644 --- a/include/uapi/linux/bpf.h +++ b/include/uapi/linux/bpf.h @@ -944,6 +944,11 @@ enum bpf_map_type { BPF_MAP_TYPE_BLOOM_FILTER, BPF_MAP_TYPE_USER_RINGBUF, BPF_MAP_TYPE_CGRP_STORAGE, + + BPF_MAP_TYPE_RESERVE_1, + BPF_MAP_TYPE_RESERVE_2, + BPF_MAP_TYPE_RESERVE_3, + BPF_MAP_TYPE_RESERVE_4, }; /* Note that tracing related programs such as @@ -989,6 +994,11 @@ enum bpf_prog_type { BPF_PROG_TYPE_SYSCALL, /* a program that can execute syscalls */ BPF_PROG_TYPE_NETFILTER, BPF_PROG_TYPE_SCHED, + + BPF_PROG_TYPE_RESERVE_1, + BPF_PROG_TYPE_RESERVE_2, + BPF_PROG_TYPE_RESERVE_3, + BPF_PROG_TYPE_RESERVE_4, }; enum bpf_attach_type { @@ -1042,6 +1052,12 @@ enum bpf_attach_type { BPF_TCX_EGRESS, BPF_TRACE_UPROBE_MULTI, BPF_SCHED, + + BPF_ATTACH_TYPE_RESERVE_1, + BPF_ATTACH_TYPE_RESERVE_2, + BPF_ATTACH_TYPE_RESERVE_3, + BPF_ATTACH_TYPE_RESERVE_4, + __MAX_BPF_ATTACH_TYPE }; @@ -1061,6 +1077,12 @@ enum bpf_link_type { BPF_LINK_TYPE_NETFILTER = 10, BPF_LINK_TYPE_TCX = 11, BPF_LINK_TYPE_UPROBE_MULTI = 12, + + BPF_LINK_TYPE_RESERVE_1 = 13, + BPF_LINK_TYPE_RESERVE_2 = 14, + BPF_LINK_TYPE_RESERVE_3 = 15, + BPF_LINK_TYPE_RESERVE_4 = 16, + MAX_BPF_LINK_TYPE, }; -- 2.34.1

1 0

[PATCH OLK-6.6 v1 0/2] Reserve syscall entries for kabi compatibility
by Wei Li 24 Jan '24

24 Jan '24

In this patch set, we: 1. Fix map_shadow_stack() syscall reserving issue 2. Reserve 15 syscall entries for kabi compatibility Sohil Mehta (1): arch: Reserve map_shadow_stack() syscall number for all architectures Wei Li (1): kabi: Reserve syscall entries for kabi compatibility arch/alpha/kernel/syscalls/syscall.tbl | 1 + arch/arm/tools/syscall.tbl | 16 ++++++++ arch/arm64/include/asm/unistd.h | 2 +- arch/arm64/include/asm/unistd32.h | 32 ++++++++++++++++ arch/m68k/kernel/syscalls/syscall.tbl | 1 + arch/microblaze/kernel/syscalls/syscall.tbl | 1 + arch/mips/kernel/syscalls/syscall_n32.tbl | 1 + arch/mips/kernel/syscalls/syscall_n64.tbl | 1 + arch/mips/kernel/syscalls/syscall_o32.tbl | 1 + arch/parisc/kernel/syscalls/syscall.tbl | 1 + arch/powerpc/kernel/syscalls/syscall.tbl | 16 ++++++++ arch/s390/kernel/syscalls/syscall.tbl | 1 + arch/sh/kernel/syscalls/syscall.tbl | 1 + arch/sparc/kernel/syscalls/syscall.tbl | 1 + arch/x86/entry/syscalls/syscall_32.tbl | 16 ++++++++ arch/x86/entry/syscalls/syscall_64.tbl | 15 ++++++++ arch/xtensa/kernel/syscalls/syscall.tbl | 1 + include/uapi/asm-generic/unistd.h | 36 +++++++++++++++++- tools/include/uapi/asm-generic/unistd.h | 37 +++++++++++++++++-- .../arch/powerpc/entry/syscalls/syscall.tbl | 16 ++++++++ .../arch/x86/entry/syscalls/syscall_64.tbl | 15 ++++++++ 21 files changed, 207 insertions(+), 5 deletions(-) -- 2.25.1

2 3

[PATCH OLK-5.10] sched/fair: Fix qos_timer deadlock when cpuhp offline
by Zhao Wenhui 24 Jan '24

24 Jan '24

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8WTPH -------------------------------- When cpu hotplug offline, if qos_overload_timer_handler() concurrently running, It could trigger an ABBA deadlock. As qos_overload_timer_handler() requires rq lock, while the cpu hotplug attached firstly and waiting for the qos_timer handling, This can cause Hard LOCKUP like: [359230.788754] Call trace: [359230.788755] hrtimer_active+0x7c/0xec [359230.788757] hrtimer_cancel+0x3c/0x60 [359230.788758] unthrottle_qos_cfs_rqs+0xbc/0x110 [359230.788760] unthrottle_offline_cfs_rqs+0x40/0x150 [359230.788762] rq_offline_fair+0x60/0x70 [359230.788764] set_rq_offline.part.0+0x54/0xf4 [359230.788765] set_rq_offline+0x34/0x44 [359230.788767] rq_attach_root+0x1e8/0x260 [359230.788768] cpu_attach_domain+0x244/0x430 [359230.788770] detach_destroy_domains+0xbc/0x140 [359230.788772] partition_sched_domains_locked+0x23c/0x314 [359230.788774] rebuild_sched_domains_locked+0x1f0/0x270 [359230.788776] cpuset_hotplug_workfn+0x514/0x74c [359230.788777] process_one_work+0x34c/0x800 [359230.788779] worker_thread+0xa8/0x500 [359230.788780] kthread+0x1e0/0x220 [359230.788782] ret_from_fork+0x10/0x18 [359230.788783] Kernel panic - not syncing: Hard LOCKUP Fix it by switch to use __unthrottle_qos_cfs_rqs(), instead of unthrottle_qos_cfs_rqs() in unthrottle_offline_cfs_rqs, so that it will not trigger cancel_qos_timer() when cpu hotplug offline. Fixes: c62a5f1384b9 ("sched/qos: Add qos_tg_{throttle,unthrottle}_{up,down}") Signed-off-by: Zhao Wenhui <zhaowenhui8(a)huawei.com> --- kernel/sched/fair.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 16f6720a244c..f39e7547523c 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -131,6 +131,7 @@ static DEFINE_PER_CPU_SHARED_ALIGNED(struct hrtimer, qos_overload_timer); static DEFINE_PER_CPU(int, qos_cpu_overload); unsigned int sysctl_overload_detect_period = 5000; /* in ms */ unsigned int sysctl_offline_wait_interval = 100; /* in ms */ +static int __unthrottle_qos_cfs_rqs(int cpu); static int unthrottle_qos_cfs_rqs(int cpu); static bool qos_smt_expelled(int this_cpu); #endif @@ -5733,7 +5734,7 @@ static void __maybe_unused unthrottle_offline_cfs_rqs(struct rq *rq) lockdep_assert_rq_held(rq); #ifdef CONFIG_QOS_SCHED - unthrottle_qos_cfs_rqs(cpu_of(rq)); + __unthrottle_qos_cfs_rqs(cpu_of(rq)); #endif rcu_read_lock(); -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS] sched/fair: Fix qos_timer deadlock when cpuhp offline
by Zhao Wenhui 24 Jan '24

24 Jan '24

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8YHBT -------------------------------- When cpu hotplug offline, if qos_overload_timer_handler() concurrently running, It could trigger an ABBA deadlock. As qos_overload_timer_handler() requires rq lock, while the cpu hotplug attached firstly and waiting for the qos_timer handling, This can cause Hard LOCKUP like: [359230.788754] Call trace: [359230.788755] hrtimer_active+0x7c/0xec [359230.788757] hrtimer_cancel+0x3c/0x60 [359230.788758] unthrottle_qos_cfs_rqs+0xbc/0x110 [359230.788760] unthrottle_offline_cfs_rqs+0x40/0x150 [359230.788762] rq_offline_fair+0x60/0x70 [359230.788764] set_rq_offline.part.0+0x54/0xf4 [359230.788765] set_rq_offline+0x34/0x44 [359230.788767] rq_attach_root+0x1e8/0x260 [359230.788768] cpu_attach_domain+0x244/0x430 [359230.788770] detach_destroy_domains+0xbc/0x140 [359230.788772] partition_sched_domains_locked+0x23c/0x314 [359230.788774] rebuild_sched_domains_locked+0x1f0/0x270 [359230.788776] cpuset_hotplug_workfn+0x514/0x74c [359230.788777] process_one_work+0x34c/0x800 [359230.788779] worker_thread+0xa8/0x500 [359230.788780] kthread+0x1e0/0x220 [359230.788782] ret_from_fork+0x10/0x18 [359230.788783] Kernel panic - not syncing: Hard LOCKUP Fix it by switch to use __unthrottle_qos_cfs_rqs(), instead of unthrottle_qos_cfs_rqs() in unthrottle_offline_cfs_rqs, so that it will not trigger cancel_qos_timer() when cpu hotplug offline. Fixes: 453eaea60e92 ("sched/qos: Add qos_tg_{throttle,unthrottle}_{up,down}") Signed-off-by: Zhao Wenhui <zhaowenhui8(a)huawei.com> --- kernel/sched/fair.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index ce6bb4304949..6d0ec315f7be 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -116,7 +116,7 @@ static DEFINE_PER_CPU_SHARED_ALIGNED(struct hrtimer, qos_overload_timer); static DEFINE_PER_CPU(int, qos_cpu_overload); unsigned int sysctl_overload_detect_period = 5000; /* in ms */ unsigned int sysctl_offline_wait_interval = 100; /* in ms */ -static int unthrottle_qos_cfs_rqs(int cpu); +static int __unthrottle_qos_cfs_rqs(int cpu); #endif #ifdef CONFIG_CFS_BANDWIDTH @@ -5218,7 +5218,7 @@ static void __maybe_unused unthrottle_offline_cfs_rqs(struct rq *rq) lockdep_assert_held(&rq->lock); #ifdef CONFIG_QOS_SCHED - unthrottle_qos_cfs_rqs(cpu_of(rq)); + __unthrottle_qos_cfs_rqs(cpu_of(rq)); #endif rcu_read_lock(); -- 2.34.1

2 1

[PATCH OLK-6.6] tlb: reserve fields for struct mmu_gather
by Jinjiang Tu 24 Jan '24

24 Jan '24

hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I8YJQK -------------------------------- reserve fields for struct mmu_gather. Signed-off-by: Jinjiang Tu <tujinjiang(a)huawei.com> --- include/asm-generic/tlb.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h index 129a3a759976..1a3191e844b7 100644 --- a/include/asm-generic/tlb.h +++ b/include/asm-generic/tlb.h @@ -14,6 +14,7 @@ #include <linux/mmu_notifier.h> #include <linux/swap.h> #include <linux/hugetlb_inline.h> +#include <linux/kabi.h> #include <asm/tlbflush.h> #include <asm/cacheflush.h> @@ -348,6 +349,8 @@ struct mmu_gather { unsigned int page_size; #endif #endif + KABI_RESERVE(1) + KABI_RESERVE(2) }; void tlb_flush_mmu(struct mmu_gather *tlb); -- 2.25.1

3 2

[PATCH OLK-6.6] arch/mm/fault: fix major fault accounting when retrying under per-VMA lock
by Tong Tiangen 24 Jan '24

24 Jan '24

From: Suren Baghdasaryan <surenb(a)google.com> mainline inclusion from mainline-v6.7 commit 46e714c729c8d1d8110bc0545d7ffe8a759c9dc0 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8YKL3 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- A test [1] in Android test suite started failing after [2] was merged. It turns out that after handling a major fault under per-VMA lock, the process major fault counter does not register that fault as major. Before [2] read faults would be done under mmap_lock, in which case FAULT_FLAG_TRIED flag is set before retrying. That in turn causes mm_account_fault() to account the fault as major once retry completes. With per-VMA locks we often retry because a fault can't be handled without locking the whole mm using mmap_lock. Therefore such retries do not set FAULT_FLAG_TRIED flag. This logic does not work after [2] because we can now handle read major faults under per-VMA lock and upon retry the fact there was a major fault gets lost. Fix this by setting FAULT_FLAG_TRIED after retrying under per-VMA lock if VM_FAULT_MAJOR was returned. Ideally we would use an additional VM_FAULT bit to indicate the reason for the retry (could not handle under per-VMA lock vs other reason) but this simpler solution seems to work, so keeping it simple. [1] https://cs.android.com/android/platform/superproject/+/master:test/vts-test… [2] https://lore.kernel.org/all/20231006195318.4087158-6-willy@infradead.org/ Link: https://lkml.kernel.org/r/20231226214610.109282-1-surenb@google.com Fixes: 12214eba1992 ("mm: handle read faults under the VMA lock") Signed-off-by: Suren Baghdasaryan <surenb(a)google.com> Cc: Matthew Wilcox <willy(a)infradead.org> Cc: Alexander Gordeev <agordeev(a)linux.ibm.com> Cc: Andy Lutomirski <luto(a)kernel.org> Cc: Catalin Marinas <catalin.marinas(a)arm.com> Cc: Christophe Leroy <christophe.leroy(a)csgroup.eu> Cc: Dave Hansen <dave.hansen(a)linux.intel.com> Cc: Gerald Schaefer <gerald.schaefer(a)linux.ibm.com> Cc: Michael Ellerman <mpe(a)ellerman.id.au> Cc: Palmer Dabbelt <palmer(a)dabbelt.com> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Will Deacon <will(a)kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> conflict: arch/s390/mm/fault.c Signed-off-by: Tong Tiangen <tongtiangen(a)huawei.com> --- arch/arm64/mm/fault.c | 2 ++ arch/powerpc/mm/fault.c | 2 ++ arch/riscv/mm/fault.c | 2 ++ arch/s390/mm/fault.c | 3 +++ arch/x86/mm/fault.c | 2 ++ 5 files changed, 11 insertions(+) diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c index 171810268f6f..c376e58e8cf0 100644 --- a/arch/arm64/mm/fault.c +++ b/arch/arm64/mm/fault.c @@ -633,6 +633,8 @@ static int __kprobes do_page_fault(unsigned long far, unsigned long esr, goto done; } count_vm_vma_lock_event(VMA_LOCK_RETRY); + if (fault & VM_FAULT_MAJOR) + mm_flags |= FAULT_FLAG_TRIED; /* Quick path to respond to signals */ if (fault_signal_pending(fault, regs)) { diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c index b1723094d464..ec23164ad768 100644 --- a/arch/powerpc/mm/fault.c +++ b/arch/powerpc/mm/fault.c @@ -496,6 +496,8 @@ static int ___do_page_fault(struct pt_regs *regs, unsigned long address, goto done; } count_vm_vma_lock_event(VMA_LOCK_RETRY); + if (fault & VM_FAULT_MAJOR) + flags |= FAULT_FLAG_TRIED; if (fault_signal_pending(fault, regs)) return user_mode(regs) ? 0 : SIGBUS; diff --git a/arch/riscv/mm/fault.c b/arch/riscv/mm/fault.c index 90d4ba36d1d0..081339ddf47e 100644 --- a/arch/riscv/mm/fault.c +++ b/arch/riscv/mm/fault.c @@ -304,6 +304,8 @@ void handle_page_fault(struct pt_regs *regs) goto done; } count_vm_vma_lock_event(VMA_LOCK_RETRY); + if (fault & VM_FAULT_MAJOR) + flags |= FAULT_FLAG_TRIED; if (fault_signal_pending(fault, regs)) { if (!user_mode(regs)) diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index b678295931c3..f5463535013a 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -424,6 +424,9 @@ static inline vm_fault_t do_exception(struct pt_regs *regs, int access) goto out; } count_vm_vma_lock_event(VMA_LOCK_RETRY); + if (fault & VM_FAULT_MAJOR) + flags |= FAULT_FLAG_TRIED; + /* Quick path to respond to signals */ if (fault_signal_pending(fault, regs)) { fault = VM_FAULT_SIGNAL; diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index ab778eac1952..679b09cfe241 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -1370,6 +1370,8 @@ void do_user_addr_fault(struct pt_regs *regs, goto done; } count_vm_vma_lock_event(VMA_LOCK_RETRY); + if (fault & VM_FAULT_MAJOR) + flags |= FAULT_FLAG_TRIED; /* Quick path to respond to signals */ if (fault_signal_pending(fault, regs)) { -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS] fs:/dcache.c: fix negative dentry limit not complete problem
by Long Li 24 Jan '24

24 Jan '24

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8WPQW CVE: NA -------------------------------- Restrictions of negative dentry can avoid softlock when too many dentry in memory, but restrictions before do not always take effect. For example, removing files which has been created would not enter retain_dentry(), because the dentry of file maybe has been added to lru list of superblock, it caused that fast_dput() reutrn true in last dput(). So, add restriction logic for the file which has been added to the lru list in fast_dput(), it prevents the negative dentry exceeding the limit when deleting existing file. Factor out negative dentry limit logic into limit_negative_dentry(), make the code more clean. Fixes: 7ba5d5d0e8b5 ("fs/dcache.c: avoid softlock since too many negative dentry") Signed-off-by: Long Li <leo.lilong(a)huawei.com> --- fs/dcache.c | 58 +++++++++++++++++++++++++++++++++-------------------- 1 file changed, 36 insertions(+), 22 deletions(-) diff --git a/fs/dcache.c b/fs/dcache.c index ef1641398eda..e52e3abdf378 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -636,10 +636,36 @@ static inline struct dentry *lock_parent(struct dentry *dentry) return __lock_parent(dentry); } -static inline bool retain_dentry(struct dentry *dentry) +/* + * Return true if dentry is negative and exceed negative dentry limit. + */ +static inline bool limit_negative_dentry(struct dentry *dentry) { struct dentry *parent; + parent = dentry->d_parent; + if (unlikely(!parent)) + return false; + + WARN_ON((atomic_read(&parent->d_neg_dnum) < 0)); + if (!dentry->d_inode) { + if (!(dentry->d_flags & DCACHE_NEGATIVE_ACCOUNT)) { + unsigned int flags = READ_ONCE(dentry->d_flags); + + flags |= DCACHE_NEGATIVE_ACCOUNT; + WRITE_ONCE(dentry->d_flags, flags); + atomic_inc(&parent->d_neg_dnum); + } + + if (atomic_read(&parent->d_neg_dnum) >= NEG_DENTRY_LIMIT) + return true; + } + + return false; +} + +static inline bool retain_dentry(struct dentry *dentry) +{ WARN_ON(d_in_lookup(dentry)); /* Unreachable? Get rid of it */ @@ -654,27 +680,9 @@ static inline bool retain_dentry(struct dentry *dentry) return false; } - if (unlikely(!dentry->d_parent)) - goto noparent; - - parent = dentry->d_parent; - /* Return false if it's negative */ - WARN_ON((atomic_read(&parent->d_neg_dnum) < 0)); - if (!dentry->d_inode) { - if (!(dentry->d_flags & DCACHE_NEGATIVE_ACCOUNT)) { - unsigned flags = READ_ONCE(dentry->d_flags); - - flags |= DCACHE_NEGATIVE_ACCOUNT; - WRITE_ONCE(dentry->d_flags, flags); - atomic_inc(&parent->d_neg_dnum); - } - } - - if (!dentry->d_inode && - atomic_read(&parent->d_neg_dnum) >= NEG_DENTRY_LIMIT) + if (unlikely(limit_negative_dentry(dentry))) return false; -noparent: /* retain; LRU fodder */ dentry->d_lockref.count--; if (unlikely(!(dentry->d_flags & DCACHE_LRU_LIST))) @@ -808,8 +816,14 @@ static inline bool fast_dput(struct dentry *dentry) d_flags &= DCACHE_REFERENCED | DCACHE_LRU_LIST | DCACHE_DISCONNECTED; /* Nothing to do? Dropping the reference was all we needed? */ - if (d_flags == (DCACHE_REFERENCED | DCACHE_LRU_LIST) && !d_unhashed(dentry)) - return true; + if (d_flags == (DCACHE_REFERENCED | DCACHE_LRU_LIST) && !d_unhashed(dentry)) { + /* + * If dentry is negative and need to be limitted, it maybe need + * to be killed, so shouldn't fast put and retain in memory. + */ + if (likely(!limit_negative_dentry(dentry))) + return true; + } /* * Not the fast normal case? Get the lock. We've already decremented -- 2.31.1

2 1

[PATCH openEuler-1.0-LTS] sched/fair: Fix qos_timer deadlock when cpuhp offline
by Zhao Wenhui 24 Jan '24

24 Jan '24

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8YHBT -------------------------------- When cpu hotplug offline, if qos_overload_timer_handler() concurrently running, It could trigger an ABBA deadlock. As qos_overload_timer_handler() requires rq lock, while the cpu hotplug attached firstly and waiting for the qos_timer handling, This can cause Hard LOCKUP like: [359230.788754] Call trace: [359230.788755] hrtimer_active+0x7c/0xec [359230.788757] hrtimer_cancel+0x3c/0x60 [359230.788758] unthrottle_qos_cfs_rqs+0xbc/0x110 [359230.788760] unthrottle_offline_cfs_rqs+0x40/0x150 [359230.788762] rq_offline_fair+0x60/0x70 [359230.788764] set_rq_offline.part.0+0x54/0xf4 [359230.788765] set_rq_offline+0x34/0x44 [359230.788767] rq_attach_root+0x1e8/0x260 [359230.788768] cpu_attach_domain+0x244/0x430 [359230.788770] detach_destroy_domains+0xbc/0x140 [359230.788772] partition_sched_domains_locked+0x23c/0x314 [359230.788774] rebuild_sched_domains_locked+0x1f0/0x270 [359230.788776] cpuset_hotplug_workfn+0x514/0x74c [359230.788777] process_one_work+0x34c/0x800 [359230.788779] worker_thread+0xa8/0x500 [359230.788780] kthread+0x1e0/0x220 [359230.788782] ret_from_fork+0x10/0x18 [359230.788783] Kernel panic - not syncing: Hard LOCKUP Fix it by switch to use __unthrottle_qos_cfs_rqs(), instead of unthrottle_qos_cfs_rqs() in unthrottle_offline_cfs_rqs, so that it will not trigger cancel_qos_timer() when cpu hotplug offline. Fixes: 453eaea60e92 ("sched/qos: Add qos_tg_{throttle,unthrottle}_{up,down}") Signed-off-by: Zhao Wenhui <zhaowenhui8(a)huawei.com> --- kernel/sched/fair.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index ce6bb4304949..81e3106962e3 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -116,6 +116,7 @@ static DEFINE_PER_CPU_SHARED_ALIGNED(struct hrtimer, qos_overload_timer); static DEFINE_PER_CPU(int, qos_cpu_overload); unsigned int sysctl_overload_detect_period = 5000; /* in ms */ unsigned int sysctl_offline_wait_interval = 100; /* in ms */ +static int __unthrottle_qos_cfs_rqs(int cpu); static int unthrottle_qos_cfs_rqs(int cpu); #endif @@ -5218,7 +5219,7 @@ static void __maybe_unused unthrottle_offline_cfs_rqs(struct rq *rq) lockdep_assert_held(&rq->lock); #ifdef CONFIG_QOS_SCHED - unthrottle_qos_cfs_rqs(cpu_of(rq)); + __unthrottle_qos_cfs_rqs(cpu_of(rq)); #endif rcu_read_lock(); -- 2.34.1

2 1

[PATCH OLK-6.6 v2 0/4] reserve space for arm64 related structures.
by Yuntao Liu 24 Jan '24

24 Jan '24

Yuntao Liu (4): kabi: reserve space for struct efi.h:efi kabi: reserve space for struct extable.h:exception_table_entry kabi: reserve space for struct fb.h:fb_deferred_io fb.h:fb_info kabi: reserve space for struct processor.h:thread_struct arch/arm64/include/asm/extable.h | 3 +++ arch/arm64/include/asm/processor.h | 9 +++++++++ include/linux/efi.h | 3 +++ include/linux/fb.h | 7 +++++++ 4 files changed, 22 insertions(+) -- 2.34.1

2 5

openEuler Kernel SIG双周例会
by openEuler conference 24 Jan '24

24 Jan '24

您好！ Kernel 邀请您参加 2024-01-26 14:00 召开的WeLink会议(自动录制) 会议主题：openEuler Kernel SIG双周例会会议内容： 1. 进展update 2. 议题征集中（新增议题可直接回复本邮件申报，或者填入会议看板）会议链接：https://bmeeting.huaweicloud.com:36443/#/j/967727869 会议纪要：https://etherpad.openeuler.org/p/Kernel-meetings 更多资讯尽在：https://www.openeuler.org/zh/ Hello! Kernel invites you to attend the WeLink conference(auto recording) will be held at 2024-01-26 14:00, The subject of the conference is openEuler Kernel SIG双周例会, Summary: 1. 进展update 2. 议题征集中（新增议题可直接回复本邮件申报，或者填入会议看板） You can join the meeting at https://bmeeting.huaweicloud.com:36443/#/j/967727869. Add topics at https://etherpad.openeuler.org/p/Kernel-meetings. More information: https://www.openeuler.org/en/

1 0

[openeuler:OLK-6.6 1689/2572] include/linux/suspend.h:36:60: error: expected ')' before numeric constant
by kernel test robot 24 Jan '24

24 Jan '24

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 77caa0f8fcb7c7abbb34b5b49ae26c34c042fdc7 commit: 1f46f3a128f21c190281c72cad99267bcc177e34 [1689/2572] PCI: PM: fix pcie mrrs restoring config: loongarch-allnoconfig (https://download.01.org/0day-ci/archive/20240124/202401241339.EjsOdYEo-lkp@…) compiler: loongarch64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240124/202401241339.EjsOdYEo-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202401241339.EjsOdYEo-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from drivers/pci/pci.c:35: >> include/linux/suspend.h:36:60: error: expected ')' before numeric constant 36 | #define PM_SUSPEND_ON ((__force suspend_state_t) 0) | ^ include/linux/suspend.h:341:34: note: in expansion of macro 'PM_SUSPEND_ON' 341 | #define pm_suspend_target_state (PM_SUSPEND_ON) | ^~~~~~~~~~~~~ drivers/pci/pci.c:177:17: note: in expansion of macro 'pm_suspend_target_state' 177 | suspend_state_t pm_suspend_target_state; | ^~~~~~~~~~~~~~~~~~~~~~~ vim +36 include/linux/suspend.h 95d9ffbe01fb21 Rafael J. Wysocki 2007-10-18 35 95d9ffbe01fb21 Rafael J. Wysocki 2007-10-18 @36 #define PM_SUSPEND_ON ((__force suspend_state_t) 0) 690cbb90a709c1 Rafael J. Wysocki 2017-08-10 37 #define PM_SUSPEND_TO_IDLE ((__force suspend_state_t) 1) 7e73c5ae6e7991 Zhang Rui 2013-02-06 38 #define PM_SUSPEND_STANDBY ((__force suspend_state_t) 2) 95d9ffbe01fb21 Rafael J. Wysocki 2007-10-18 39 #define PM_SUSPEND_MEM ((__force suspend_state_t) 3) 690cbb90a709c1 Rafael J. Wysocki 2017-08-10 40 #define PM_SUSPEND_MIN PM_SUSPEND_TO_IDLE 95d9ffbe01fb21 Rafael J. Wysocki 2007-10-18 41 #define PM_SUSPEND_MAX ((__force suspend_state_t) 4) 95d9ffbe01fb21 Rafael J. Wysocki 2007-10-18 42 :::::: The code at line 36 was first introduced by commit :::::: 95d9ffbe01fb21d524c86bf77871255066bc6e55 PM: Move definition of struct pm_ops to suspend.h :::::: TO: Rafael J. Wysocki <rjw(a)sisk.pl> :::::: CC: Linus Torvalds <torvalds(a)woody.linux-foundation.org> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-5.10] sched/fair: Fix qos_timer deadlock when cpuhp offline
by Zhao Wenhui 24 Jan '24

24 Jan '24

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8WTPH -------------------------------- When cpu hotplug offline, if qos_overload_timer_handler() concurrently running, It could trigger an ABBA deadlock. As qos_overload_timer_handler() requires rq lock, while the cpu hotplug attached firstly and waiting for the qos_timer handling, This can cause Hard LOCKUP like: [359230.788754] Call trace: [359230.788755] hrtimer_active+0x7c/0xec [359230.788757] hrtimer_cancel+0x3c/0x60 [359230.788758] unthrottle_qos_cfs_rqs+0xbc/0x110 [359230.788760] unthrottle_offline_cfs_rqs+0x40/0x150 [359230.788762] rq_offline_fair+0x60/0x70 [359230.788764] set_rq_offline.part.0+0x54/0xf4 [359230.788765] set_rq_offline+0x34/0x44 [359230.788767] rq_attach_root+0x1e8/0x260 [359230.788768] cpu_attach_domain+0x244/0x430 [359230.788770] detach_destroy_domains+0xbc/0x140 [359230.788772] partition_sched_domains_locked+0x23c/0x314 [359230.788774] rebuild_sched_domains_locked+0x1f0/0x270 [359230.788776] cpuset_hotplug_workfn+0x514/0x74c [359230.788777] process_one_work+0x34c/0x800 [359230.788779] worker_thread+0xa8/0x500 [359230.788780] kthread+0x1e0/0x220 [359230.788782] ret_from_fork+0x10/0x18 [359230.788783] Kernel panic - not syncing: Hard LOCKUP Fix it by switch to use __unthrottle_qos_cfs_rqs(), instead of unthrottle_qos_cfs_rqs() in unthrottle_offline_cfs_rqs, so that it will not trigger cancel_qos_timer() when cpu hotplug offline. Fixes: c62a5f1384b9 ("sched/qos: Add qos_tg_{throttle,unthrottle}_{up,down}") Signed-off-by: Zhao Wenhui <zhaowenhui8(a)huawei.com> --- kernel/sched/fair.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 16f6720a244c..f39e7547523c 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -131,6 +131,7 @@ static DEFINE_PER_CPU_SHARED_ALIGNED(struct hrtimer, qos_overload_timer); static DEFINE_PER_CPU(int, qos_cpu_overload); unsigned int sysctl_overload_detect_period = 5000; /* in ms */ unsigned int sysctl_offline_wait_interval = 100; /* in ms */ +static int __unthrottle_qos_cfs_rqs(int cpu); static int unthrottle_qos_cfs_rqs(int cpu); static bool qos_smt_expelled(int this_cpu); #endif @@ -5733,7 +5734,7 @@ static void __maybe_unused unthrottle_offline_cfs_rqs(struct rq *rq) lockdep_assert_rq_held(rq); #ifdef CONFIG_QOS_SCHED - unthrottle_qos_cfs_rqs(cpu_of(rq)); + __unthrottle_qos_cfs_rqs(cpu_of(rq)); #endif rcu_read_lock(); -- 2.34.1

2 1

[openeuler:OLK-6.6 2490/2572] kernel/sched/core.c:9719:2: error: call to undeclared function 'tg_update_affinity_domains'; ISO C99 and later do not support implicit function declarations
by kernel test robot 24 Jan '24

24 Jan '24

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: a662a03b9d1d5b93551f9c0f9c2875373b223115 commit: 6eb07f9925a906d81f328c808ba25f7800888dce [2490/2572] sched: Introduce smart grid scheduling strategy for cfs config: arm64-randconfig-002-20240124 (https://download.01.org/0day-ci/archive/20240124/202401241115.amp9PdWR-lkp@…) compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project.git 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240124/202401241115.amp9PdWR-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202401241115.amp9PdWR-lkp@intel.com/ All errors (new ones prefixed by >>): >> kernel/sched/core.c:9719:2: error: call to undeclared function 'tg_update_affinity_domains'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] tg_update_affinity_domains(cpu, 1); ^ kernel/sched/core.c:9719:2: note: did you mean 'irq_update_affinity_hint'? include/linux/interrupt.h:325:1: note: 'irq_update_affinity_hint' declared here irq_update_affinity_hint(unsigned int irq, const struct cpumask *m) ^ kernel/sched/core.c:9809:2: error: call to undeclared function 'tg_update_affinity_domains'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] tg_update_affinity_domains(cpu, 0); ^ >> kernel/sched/core.c:9931:2: error: call to undeclared function 'init_auto_affinity'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] init_auto_affinity(&root_task_group); ^ kernel/sched/core.c:9931:2: note: did you mean 'irq_set_affinity'? include/linux/interrupt.h:308:12: note: 'irq_set_affinity' declared here extern int irq_set_affinity(unsigned int irq, const struct cpumask *cpumask); ^ kernel/sched/core.c:9931:22: error: use of undeclared identifier 'root_task_group'; did you mean 'task_group'? init_auto_affinity(&root_task_group); ^~~~~~~~~~~~~~~ task_group kernel/sched/sched.h:2140:34: note: 'task_group' declared here static inline struct task_group *task_group(struct task_struct *p) ^ 4 errors generated. vim +/tg_update_affinity_domains +9719 kernel/sched/core.c 9699 9700 int sched_cpu_activate(unsigned int cpu) 9701 { 9702 struct rq *rq = cpu_rq(cpu); 9703 struct rq_flags rf; 9704 9705 /* 9706 * Clear the balance_push callback and prepare to schedule 9707 * regular tasks. 9708 */ 9709 balance_push_set(cpu, false); 9710 9711 #ifdef CONFIG_SCHED_SMT 9712 /* 9713 * When going up, increment the number of cores with SMT present. 9714 */ 9715 if (cpumask_weight(cpu_smt_mask(cpu)) == 2) 9716 static_branch_inc_cpuslocked(&sched_smt_present); 9717 #endif 9718 set_cpu_active(cpu, true); > 9719 tg_update_affinity_domains(cpu, 1); 9720 9721 if (sched_smp_initialized) { 9722 sched_update_numa(cpu, true); 9723 sched_domains_numa_masks_set(cpu); 9724 cpuset_cpu_active(); 9725 } 9726 9727 /* 9728 * Put the rq online, if not already. This happens: 9729 * 9730 * 1) In the early boot process, because we build the real domains 9731 * after all CPUs have been brought up. 9732 * 9733 * 2) At runtime, if cpuset_cpu_active() fails to rebuild the 9734 * domains. 9735 */ 9736 rq_lock_irqsave(rq, &rf); 9737 if (rq->rd) { 9738 BUG_ON(!cpumask_test_cpu(cpu, rq->rd->span)); 9739 set_rq_online(rq); 9740 } 9741 rq_unlock_irqrestore(rq, &rf); 9742 9743 return 0; 9744 } 9745 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-6.6] fs:/dcache.c: fix negative dentry limit not complete problem
by Long Li 24 Jan '24

24 Jan '24

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8JH5M CVE: NA -------------------------------- Restrictions of negative dentry can avoid softlock when too many dentry in memory, but restrictions before do not always take effect. For example, removing files which has been created would not enter retain_dentry(), because the dentry of file maybe has been added to lru list of superblock, it caused that fast_dput() reutrn true in last dput(). So, add restriction logic for the file which has been added to the lru list in fast_dput(), it prevents the negative dentry exceeding the limit when deleting existing file. Factor out negative dentry limit logic into limit_negative_dentry(), make the coude more clean. Fixes: f3de89fc28ba ("fs/dcache.c: avoid softlock since too many negative dentry") Signed-off-by: Long Li <leo.lilong(a)huawei.com> --- fs/dcache.c | 58 +++++++++++++++++++++++++++++++++-------------------- 1 file changed, 36 insertions(+), 22 deletions(-) diff --git a/fs/dcache.c b/fs/dcache.c index c27aa8ff78f4..c4730f7dc8e3 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -675,10 +675,36 @@ static inline struct dentry *lock_parent(struct dentry *dentry) return __lock_parent(dentry); } -static inline bool retain_dentry(struct dentry *dentry) +/* + * Return true if dentry is negative and exceed negative dentry limit. + */ +static inline bool limit_negative_dentry(struct dentry *dentry) { struct dentry *parent; + parent = dentry->d_parent; + if (unlikely(!parent)) + return false; + + WARN_ON((atomic_read(&parent->d_neg_dnum) < 0)); + if (!dentry->d_inode) { + if (!(dentry->d_flags & DCACHE_NEGATIVE_ACCOUNT)) { + unsigned int flags = READ_ONCE(dentry->d_flags); + + flags |= DCACHE_NEGATIVE_ACCOUNT; + WRITE_ONCE(dentry->d_flags, flags); + atomic_inc(&parent->d_neg_dnum); + } + + if (atomic_read(&parent->d_neg_dnum) >= NEG_DENTRY_LIMIT) + return true; + } + + return false; +} + +static inline bool retain_dentry(struct dentry *dentry) +{ WARN_ON(d_in_lookup(dentry)); /* Unreachable? Get rid of it */ @@ -696,27 +722,9 @@ static inline bool retain_dentry(struct dentry *dentry) if (unlikely(dentry->d_flags & DCACHE_DONTCACHE)) return false; - if (unlikely(!dentry->d_parent)) - goto noparent; - - parent = dentry->d_parent; - /* Return false if it's negative */ - WARN_ON((atomic_read(&parent->d_neg_dnum) < 0)); - if (!dentry->d_inode) { - if (!(dentry->d_flags & DCACHE_NEGATIVE_ACCOUNT)) { - unsigned int flags = READ_ONCE(dentry->d_flags); - - flags |= DCACHE_NEGATIVE_ACCOUNT; - WRITE_ONCE(dentry->d_flags, flags); - atomic_inc(&parent->d_neg_dnum); - } - } - - if (!dentry->d_inode && - atomic_read(&parent->d_neg_dnum) >= NEG_DENTRY_LIMIT) + if (unlikely(limit_negative_dentry(dentry))) return false; -noparent: /* retain; LRU fodder */ dentry->d_lockref.count--; if (unlikely(!(dentry->d_flags & DCACHE_LRU_LIST))) @@ -872,8 +880,14 @@ static inline bool fast_dput(struct dentry *dentry) DCACHE_DISCONNECTED | DCACHE_DONTCACHE; /* Nothing to do? Dropping the reference was all we needed? */ - if (d_flags == (DCACHE_REFERENCED | DCACHE_LRU_LIST) && !d_unhashed(dentry)) - return true; + if (d_flags == (DCACHE_REFERENCED | DCACHE_LRU_LIST) && !d_unhashed(dentry)) { + /* + * If dentry is negative and need to be limitted, it maybe need + * to be killed, so shouldn't fast put and retain in memory. + */ + if (likely(!limit_negative_dentry(dentry))) + return true; + } /* * Not the fast normal case? Get the lock. We've already decremented -- 2.31.1

2 1

[openeuler:OLK-6.6] BUILD REGRESSION a662a03b9d1d5b93551f9c0f9c2875373b223115
by kernel test robot 24 Jan '24

24 Jan '24

tree/branch: https://gitee.com/openeuler/kernel.git OLK-6.6 branch HEAD: a662a03b9d1d5b93551f9c0f9c2875373b223115 !3742 arch/powerpc: add ppc little endian openuler defconfig Error/Warning reports: https://lore.kernel.org/oe-kbuild-all/202401241028.WtP2GPxu-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202401241115.amp9PdWR-lkp@intel.com Error/Warning: (recently discovered and may have been fixed) kernel/sched/core.c:9719:2: error: call to undeclared function 'tg_update_affinity_domains'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] kernel/sched/core.c:9719:2: error: call to undeclared function 'tg_update_affinity_domains'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] kernel/sched/core.c:9931:2: error: call to undeclared function 'init_auto_affinity'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] kernel/sched/core.c:9931:2: error: call to undeclared function 'init_auto_affinity'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] Unverified Error/Warning (likely false positive, please contact us if interested): clang-15: warning: -Wl,-soname=linux-ilp32-vdso.so.1: 'linker' input unused [-Wunused-command-line-argument] error: unknown target ABI 'ilp32' Error/Warning ids grouped by kconfigs: gcc_recent_errors |-- arm64-allnoconfig | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- arm64-defconfig | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- loongarch-allmodconfig | |-- arch-loongarch-include-asm-irq.h:error:void-value-not-ignored-as-it-ought-to-be | |-- arch-loongarch-kernel-legacy_boot.c:warning:no-previous-prototype-for-bpi_init | |-- arch-loongarch-kernel-legacy_boot.c:warning:no-previous-prototype-for-fw_init_cmdline | |-- arch-loongarch-kernel-legacy_boot.c:warning:no-previous-prototype-for-register_default_pic | |-- arch-loongarch-kernel-legacy_boot.h:warning:union-acpi_subtable_headers-declared-inside-parameter-list-will-not-be-visible-outside-of-this-definition-or-declaration | |-- drivers-char-ipmi-ipmi_si_ls2k500.c:warning:no-previous-prototype-for-ipmi_si_sim_setup | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-boost_freq-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-clock_scale-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-freq_update_delay_ns-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-irq_work-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-last_freq_update_time-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-load-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-normal_max_freq-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-package-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-package_id-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-perf-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-prev_cpu_idle-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-prev_load-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-prev_update_time-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-sampling_rate-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-shift-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-update_util-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-update_util_set-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-work-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-work_in_progress-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:no-previous-prototype-for-load_update | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:no-previous-prototype-for-loongson3_set_mode | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:processor_device_ids-defined-but-not-used | |-- drivers-cpuinspect-sysfs.c:warning:Excess-function-parameter-dev-description-in-cpuinspect_add_interface | |-- drivers-cpuinspect-sysfs.c:warning:Excess-function-parameter-dev-description-in-cpuinspect_remove_interface | |-- drivers-cpuinspect-sysfs.c:warning:no-previous-prototype-for-cpu_utility_show | |-- drivers-cpuinspect-sysfs.c:warning:no-previous-prototype-for-cpu_utility_store | |-- drivers-cpuinspect-sysfs.c:warning:no-previous-prototype-for-patrol_complete_show | |-- drivers-cpuinspect-sysfs.c:warning:no-previous-prototype-for-patrol_times_show | |-- drivers-cpuinspect-sysfs.c:warning:no-previous-prototype-for-patrol_times_store | |-- drivers-cpuinspect-sysfs.c:warning:no-previous-prototype-for-start_patrol_store | |-- drivers-irqchip-irq-loongarch-cpu.c:warning:no-previous-prototype-for-cpuintc_acpi_init | |-- drivers-irqchip-irq-loongarch-cpu.c:warning:no-previous-prototype-for-get_cpudomain | |-- drivers-irqchip-irq-loongson-eiointc.c:warning:no-previous-prototype-for-pch_msi_parse_madt | |-- drivers-irqchip-irq-loongson-eiointc.c:warning:no-previous-prototype-for-pch_pic_parse_madt | |-- drivers-irqchip-irq-loongson-pch-pic.c:warning:no-previous-prototype-for-get_pchpic_irq_domain | |-- drivers-video-fbdev-ls2k500sfb.c:warning:no-previous-prototype-for-ls2k500sfb_interrupt | |-- fs-filescontrol.c:warning:no-previous-prototype-for-files_cgroup_count_fds | |-- include-linux-nmi.h:warning:control-reaches-end-of-non-void-function | |-- include-trace-stages-init.h:warning:str__bonding__trace_system_name-defined-but-not-used | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags | |-- mm-memcontrol.c:warning:no-previous-prototype-for-hisi_oom_recover | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | |-- mm-page_cache_limit.c:warning:no-previous-prototype-for-cache_limit_mbytes_sysctl_handler | |-- mm-page_cache_limit.c:warning:no-previous-prototype-for-cache_reclaim_enable_handler | |-- mm-page_cache_limit.c:warning:no-previous-prototype-for-cache_reclaim_sysctl_handler | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- loongarch-allnoconfig | |-- arch-loongarch-include-asm-irq.h:error:void-value-not-ignored-as-it-ought-to-be | |-- arch-loongarch-kernel-efi.c:error:implicit-declaration-of-function-pmd_mkhuge | |-- arch-loongarch-kernel-efi.c:error:incompatible-types-when-assigning-to-type-pmd_t-from-type-int | |-- arch-loongarch-kernel-legacy_boot.c:error:implicit-declaration-of-function-nid_to_addrbase | |-- arch-loongarch-kernel-legacy_boot.c:warning:no-previous-prototype-for-bpi_init | |-- arch-loongarch-kernel-legacy_boot.c:warning:no-previous-prototype-for-fw_init_cmdline | |-- arch-loongarch-kernel-legacy_boot.c:warning:no-previous-prototype-for-register_default_pic | |-- arch-loongarch-kernel-legacy_boot.h:warning:union-acpi_subtable_headers-declared-inside-parameter-list-will-not-be-visible-outside-of-this-definition-or-declaration | |-- drivers-irqchip-irq-loongarch-cpu.c:warning:no-previous-prototype-for-cpuintc_acpi_init | |-- drivers-irqchip-irq-loongarch-cpu.c:warning:no-previous-prototype-for-get_cpudomain | |-- drivers-irqchip-irq-loongson-eiointc.c:warning:no-previous-prototype-for-pch_msi_parse_madt | |-- drivers-irqchip-irq-loongson-eiointc.c:warning:no-previous-prototype-for-pch_pic_parse_madt | |-- drivers-irqchip-irq-loongson-pch-pic.c:warning:no-previous-prototype-for-get_pchpic_irq_domain | |-- include-linux-nmi.h:warning:control-reaches-end-of-non-void-function | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- loongarch-defconfig | |-- arch-loongarch-include-asm-irq.h:error:void-value-not-ignored-as-it-ought-to-be | |-- arch-loongarch-kernel-legacy_boot.c:warning:no-previous-prototype-for-bpi_init | |-- arch-loongarch-kernel-legacy_boot.c:warning:no-previous-prototype-for-fw_init_cmdline | |-- arch-loongarch-kernel-legacy_boot.c:warning:no-previous-prototype-for-register_default_pic | |-- arch-loongarch-kernel-legacy_boot.h:warning:union-acpi_subtable_headers-declared-inside-parameter-list-will-not-be-visible-outside-of-this-definition-or-declaration | |-- drivers-char-ipmi-ipmi_si_ls2k500.c:warning:no-previous-prototype-for-ipmi_si_sim_setup | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-boost_freq-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-clock_scale-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-freq_update_delay_ns-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-irq_work-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-last_freq_update_time-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-load-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-normal_max_freq-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-package-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-package_id-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-perf-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-prev_cpu_idle-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-prev_load-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-prev_update_time-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-sampling_rate-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-shift-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-update_util-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-update_util_set-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-work-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:Function-parameter-or-member-work_in_progress-not-described-in-core_data | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:no-previous-prototype-for-load_update | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:no-previous-prototype-for-loongson3_set_mode | |-- drivers-cpufreq-loongson3-acpi-cpufreq.c:warning:processor_device_ids-defined-but-not-used | |-- drivers-irqchip-irq-loongarch-cpu.c:warning:no-previous-prototype-for-cpuintc_acpi_init | |-- drivers-irqchip-irq-loongarch-cpu.c:warning:no-previous-prototype-for-get_cpudomain | |-- drivers-irqchip-irq-loongson-eiointc.c:warning:no-previous-prototype-for-pch_msi_parse_madt | |-- drivers-irqchip-irq-loongson-eiointc.c:warning:no-previous-prototype-for-pch_pic_parse_madt | |-- drivers-irqchip-irq-loongson-pch-pic.c:warning:no-previous-prototype-for-get_pchpic_irq_domain | |-- drivers-video-fbdev-ls2k500sfb.c:warning:no-previous-prototype-for-ls2k500sfb_interrupt | |-- include-linux-nmi.h:warning:control-reaches-end-of-non-void-function | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- loongarch-randconfig-001-20240124 | |-- arch-loongarch-include-asm-irq.h:error:void-value-not-ignored-as-it-ought-to-be | |-- arch-loongarch-kernel-legacy_boot.c:warning:no-previous-prototype-for-bpi_init | |-- arch-loongarch-kernel-legacy_boot.c:warning:no-previous-prototype-for-fw_init_cmdline | |-- arch-loongarch-kernel-legacy_boot.c:warning:no-previous-prototype-for-register_default_pic | |-- arch-loongarch-kernel-legacy_boot.h:warning:union-acpi_subtable_headers-declared-inside-parameter-list-will-not-be-visible-outside-of-this-definition-or-declaration | |-- drivers-irqchip-irq-loongarch-cpu.c:warning:no-previous-prototype-for-cpuintc_acpi_init | |-- drivers-irqchip-irq-loongarch-cpu.c:warning:no-previous-prototype-for-get_cpudomain | |-- drivers-irqchip-irq-loongson-eiointc.c:warning:no-previous-prototype-for-pch_msi_parse_madt | |-- drivers-irqchip-irq-loongson-eiointc.c:warning:no-previous-prototype-for-pch_pic_parse_madt | |-- drivers-irqchip-irq-loongson-pch-pic.c:warning:no-previous-prototype-for-get_pchpic_irq_domain | |-- fs-filescontrol.c:warning:no-previous-prototype-for-files_cgroup_count_fds | |-- include-linux-nmi.h:warning:control-reaches-end-of-non-void-function | |-- kernel-sched-psi.c:error:cpuacct_cgrp_id-undeclared-(first-use-in-this-function) | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags | |-- mm-memcontrol.c:warning:mem_cgroup_check_swap_for_v1-defined-but-not-used | |-- mm-memcontrol.c:warning:no-previous-prototype-for-hisi_oom_recover | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- loongarch-randconfig-002-20240124 | |-- arch-loongarch-include-asm-irq.h:error:void-value-not-ignored-as-it-ought-to-be | |-- arch-loongarch-kernel-legacy_boot.c:warning:no-previous-prototype-for-bpi_init | |-- arch-loongarch-kernel-legacy_boot.c:warning:no-previous-prototype-for-fw_init_cmdline | |-- arch-loongarch-kernel-legacy_boot.c:warning:no-previous-prototype-for-register_default_pic | |-- arch-loongarch-kernel-legacy_boot.h:warning:union-acpi_subtable_headers-declared-inside-parameter-list-will-not-be-visible-outside-of-this-definition-or-declaration | |-- drivers-irqchip-irq-loongarch-cpu.c:warning:no-previous-prototype-for-cpuintc_acpi_init | |-- drivers-irqchip-irq-loongarch-cpu.c:warning:no-previous-prototype-for-get_cpudomain | |-- drivers-irqchip-irq-loongson-eiointc.c:warning:no-previous-prototype-for-pch_msi_parse_madt | |-- drivers-irqchip-irq-loongson-eiointc.c:warning:no-previous-prototype-for-pch_pic_parse_madt | |-- drivers-irqchip-irq-loongson-pch-pic.c:warning:no-previous-prototype-for-get_pchpic_irq_domain | |-- drivers-video-fbdev-ls2k500sfb.c:warning:no-previous-prototype-for-ls2k500sfb_interrupt | |-- include-linux-nmi.h:warning:control-reaches-end-of-non-void-function | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | |-- mm-page_cache_limit.c:warning:no-previous-prototype-for-cache_limit_mbytes_sysctl_handler | |-- mm-page_cache_limit.c:warning:no-previous-prototype-for-cache_reclaim_enable_handler | |-- mm-page_cache_limit.c:warning:no-previous-prototype-for-cache_reclaim_sysctl_handler | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- x86_64-allnoconfig | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial `-- x86_64-defconfig |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead |-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial clang_recent_errors |-- arm64-allmodconfig | |-- arch-arm64-include-asm-elf.h:warning:COMPAT_ARCH_DLINFO-macro-redefined | |-- arch-arm64-kernel-sys_compat.c:warning:no-previous-prototype-for-function-a32_arm_syscall | |-- drivers-cpuinspect-sysfs.c:warning:Excess-function-parameter-dev-description-in-cpuinspect_add_interface | |-- drivers-cpuinspect-sysfs.c:warning:Excess-function-parameter-dev-description-in-cpuinspect_remove_interface | |-- drivers-cpuinspect-sysfs.c:warning:no-previous-prototype-for-function-cpu_utility_show | |-- drivers-cpuinspect-sysfs.c:warning:no-previous-prototype-for-function-cpu_utility_store | |-- drivers-cpuinspect-sysfs.c:warning:no-previous-prototype-for-function-patrol_complete_show | |-- drivers-cpuinspect-sysfs.c:warning:no-previous-prototype-for-function-patrol_times_show | |-- drivers-cpuinspect-sysfs.c:warning:no-previous-prototype-for-function-patrol_times_store | |-- drivers-cpuinspect-sysfs.c:warning:no-previous-prototype-for-function-start_patrol_store | |-- drivers-video-fbdev-ls2k500sfb.c:warning:no-previous-prototype-for-function-ls2k500sfb_interrupt | |-- fs-filescontrol.c:warning:no-previous-prototype-for-function-files_cgroup_count_fds | |-- mm-dynamic_pool.c:warning:variable-pool-is-used-uninitialized-whenever-if-condition-is-true | |-- mm-dynamic_pool.c:warning:variable-ret-is-uninitialized-when-used-here | |-- mm-dynamic_pool.c:warning:variable-type-is-used-uninitialized-whenever-if-condition-is-true | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-function-memblock_alloc_range_nid_flags | |-- mm-memcontrol.c:warning:no-previous-prototype-for-function-hisi_oom_recover | |-- mm-memcontrol.c:warning:no-previous-prototype-for-function-memcg_swapmax_read | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | |-- mm-page_cache_limit.c:warning:no-previous-prototype-for-function-cache_limit_mbytes_sysctl_handler | |-- mm-page_cache_limit.c:warning:no-previous-prototype-for-function-cache_reclaim_enable_handler | |-- mm-page_cache_limit.c:warning:no-previous-prototype-for-function-cache_reclaim_sysctl_handler | |-- mm-share_pool.c:warning:Function-parameter-or-member-node_id-not-described-in-sp_area_alloc | |-- mm-share_pool.c:warning:Function-parameter-or-member-spg_id-not-described-in-mg_sp_unshare | |-- mm-share_pool.c:warning:duplicate-section-name-Return | |-- mm-share_pool.c:warning:expecting-prototype-for-mp_sp_group_id_by_pid().-Prototype-was-for-mg_sp_group_id_by_pid()-instead | |-- mm-share_pool.c:warning:variable-is_hugepage-set-but-not-used | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- arm64-randconfig-001-20240124 | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-function-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- arm64-randconfig-002-20240124 | |-- kernel-sched-core.c:error:call-to-undeclared-function-init_auto_affinity-ISO-C99-and-later-do-not-support-implicit-function-declarations-Werror-Wimplicit-function-declaration | |-- kernel-sched-core.c:error:call-to-undeclared-function-tg_update_affinity_domains-ISO-C99-and-later-do-not-support-implicit-function-declarations-Werror-Wimplicit-function-declaration | |-- mm-madvise.c:warning:no-previous-prototype-for-function-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-function-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- arm64-randconfig-003-20240124 | |-- clang:warning:Wl-soname-linux-ilp32-vdso.so.:linker-input-unused | `-- error:unknown-target-ABI-ilp32 |-- arm64-randconfig-004-20240124 | |-- kernel-sched-core.c:error:call-to-undeclared-function-init_auto_affinity-ISO-C99-and-later-do-not-support-implicit-function-declarations | |-- kernel-sched-core.c:error:call-to-undeclared-function-tg_update_affinity_domains-ISO-C99-and-later-do-not-support-implicit-function-declarations | |-- mm-madvise.c:warning:no-previous-prototype-for-function-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-function-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- x86_64-allyesconfig | |-- drivers-cpuinspect-sysfs.c:warning:Excess-function-parameter-dev-description-in-cpuinspect_add_interface | |-- drivers-cpuinspect-sysfs.c:warning:Excess-function-parameter-dev-description-in-cpuinspect_remove_interface | |-- drivers-cpuinspect-sysfs.c:warning:no-previous-prototype-for-function-cpu_utility_show | |-- drivers-cpuinspect-sysfs.c:warning:no-previous-prototype-for-function-cpu_utility_store | |-- drivers-cpuinspect-sysfs.c:warning:no-previous-prototype-for-function-patrol_complete_show | |-- drivers-cpuinspect-sysfs.c:warning:no-previous-prototype-for-function-patrol_times_show | |-- drivers-cpuinspect-sysfs.c:warning:no-previous-prototype-for-function-patrol_times_store | |-- drivers-cpuinspect-sysfs.c:warning:no-previous-prototype-for-function-start_patrol_store | |-- drivers-video-fbdev-ls2k500sfb.c:warning:no-previous-prototype-for-function-ls2k500sfb_interrupt | |-- fs-filescontrol.c:warning:no-previous-prototype-for-function-files_cgroup_count_fds | |-- kernel-livepatch-core.c:warning:bad-line: | |-- mm-dynamic_pool.c:warning:variable-pool-is-used-uninitialized-whenever-if-condition-is-true | |-- mm-dynamic_pool.c:warning:variable-ret-is-uninitialized-when-used-here | |-- mm-dynamic_pool.c:warning:variable-type-is-used-uninitialized-whenever-if-condition-is-true | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-function-memblock_alloc_range_nid_flags | |-- mm-memcontrol.c:warning:no-previous-prototype-for-function-hisi_oom_recover | |-- mm-memcontrol.c:warning:no-previous-prototype-for-function-memcg_swapmax_read | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | |-- mm-page_cache_limit.c:warning:no-previous-prototype-for-function-cache_limit_mbytes_sysctl_handler | |-- mm-page_cache_limit.c:warning:no-previous-prototype-for-function-cache_reclaim_enable_handler | |-- mm-page_cache_limit.c:warning:no-previous-prototype-for-function-cache_reclaim_sysctl_handler | |-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial | |-- net-ipv4-tcp_comp.c:warning:no-previous-prototype-for-function-comp_setup_strp | `-- net-ipv4-tcp_comp.c:warning:no-previous-prototype-for-function-comp_stream_read |-- x86_64-randconfig-161-20240124 | |-- kernel-sched-psi.c:error:use-of-undeclared-identifier-cpuacct_cgrp_id | |-- mm-madvise.c:warning:no-previous-prototype-for-function-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-function-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial `-- x86_64-rhel-8.3-rust |-- kernel-livepatch-core.c:warning:bad-line: |-- mm-madvise.c:warning:no-previous-prototype-for-function-force_swapin_vma |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead |-- mm-memblock.c:warning:no-previous-prototype-for-function-memblock_alloc_range_nid_flags |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial elapsed time: 1048m configs tested: 51 configs skipped: 126 tested configs: alpha allnoconfig gcc alpha defconfig gcc arc allnoconfig gcc arc defconfig gcc arm allnoconfig gcc arm defconfig clang arm64 allmodconfig clang arm64 allnoconfig gcc arm64 defconfig gcc arm64 randconfig-001-20240124 clang arm64 randconfig-002-20240124 clang arm64 randconfig-003-20240124 clang arm64 randconfig-004-20240124 clang csky allnoconfig gcc csky defconfig gcc hexagon allnoconfig clang hexagon defconfig clang loongarch allmodconfig gcc loongarch allnoconfig gcc loongarch defconfig gcc loongarch randconfig-001-20240124 gcc loongarch randconfig-002-20240124 gcc m68k allnoconfig gcc m68k defconfig gcc microblaze allnoconfig gcc microblaze defconfig gcc mips allnoconfig clang nios2 allnoconfig gcc nios2 defconfig gcc openrisc allnoconfig gcc openrisc defconfig gcc parisc allnoconfig gcc parisc defconfig gcc parisc64 defconfig gcc powerpc allnoconfig gcc riscv allnoconfig clang riscv defconfig gcc s390 allnoconfig gcc s390 defconfig gcc sh allnoconfig gcc sh defconfig gcc sparc64 defconfig gcc um allnoconfig clang um defconfig gcc um i386_defconfig gcc um x86_64_defconfig gcc x86_64 allnoconfig gcc x86_64 allyesconfig clang x86_64 defconfig gcc x86_64 rhel-8.3-rust clang xtensa allnoconfig gcc -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS 14594/21565] arch/arm64/kvm/../../../virt/kvm/arm/arm.c:411:36: error: 'struct sched_info' has no member named 'run_delay'
by kernel test robot 24 Jan '24

24 Jan '24

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: fb3a7131883be36037affebc26a6597087cbd012 commit: b94fc31d4e16ff65dc2141f0a1a3af6a3aac5bb2 [14594/21565] kvm: debugfs: aarch64 export cpu time related items to debugfs config: arm64-randconfig-001-20240123 (https://download.01.org/0day-ci/archive/20240124/202401241044.ysvLtxVy-lkp@…) compiler: aarch64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240124/202401241044.ysvLtxVy-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202401241044.ysvLtxVy-lkp@intel.com/ All errors (new ones prefixed by >>): arch/arm64/kvm/../../../virt/kvm/arm/arm.c: In function 'update_steal_time': >> arch/arm64/kvm/../../../virt/kvm/arm/arm.c:411:36: error: 'struct sched_info' has no member named 'run_delay' 411 | delta = current->sched_info.run_delay - vcpu->stat.steal; | ^ arch/arm64/kvm/../../../virt/kvm/arm/arm.c:412:47: error: 'struct sched_info' has no member named 'run_delay' 412 | vcpu->stat.steal = current->sched_info.run_delay; | ^ vim +411 arch/arm64/kvm/../../../virt/kvm/arm/arm.c 406 407 static void update_steal_time(struct kvm_vcpu *vcpu) 408 { 409 u64 delta; 410 > 411 delta = current->sched_info.run_delay - vcpu->stat.steal; 412 vcpu->stat.steal = current->sched_info.run_delay; 413 vcpu->stat.st_max = max(vcpu->stat.st_max, delta); 414 } 415 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 2490/2572] kernel/sched/core.c:9719:2: error: call to undeclared function 'tg_update_affinity_domains'; ISO C99 and later do not support implicit function declarations
by kernel test robot 24 Jan '24

24 Jan '24

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: a662a03b9d1d5b93551f9c0f9c2875373b223115 commit: 6eb07f9925a906d81f328c808ba25f7800888dce [2490/2572] sched: Introduce smart grid scheduling strategy for cfs config: arm64-randconfig-004-20240124 (https://download.01.org/0day-ci/archive/20240124/202401241028.WtP2GPxu-lkp@…) compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240124/202401241028.WtP2GPxu-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202401241028.WtP2GPxu-lkp@intel.com/ All errors (new ones prefixed by >>): >> kernel/sched/core.c:9719:2: error: call to undeclared function 'tg_update_affinity_domains'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 9719 | tg_update_affinity_domains(cpu, 1); | ^ kernel/sched/core.c:9719:2: note: did you mean 'irq_update_affinity_hint'? include/linux/interrupt.h:325:1: note: 'irq_update_affinity_hint' declared here 325 | irq_update_affinity_hint(unsigned int irq, const struct cpumask *m) | ^ kernel/sched/core.c:9809:2: error: call to undeclared function 'tg_update_affinity_domains'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 9809 | tg_update_affinity_domains(cpu, 0); | ^ >> kernel/sched/core.c:9931:2: error: call to undeclared function 'init_auto_affinity'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 9931 | init_auto_affinity(&root_task_group); | ^ kernel/sched/core.c:9931:2: note: did you mean 'irq_set_affinity'? include/linux/interrupt.h:308:12: note: 'irq_set_affinity' declared here 308 | extern int irq_set_affinity(unsigned int irq, const struct cpumask *cpumask); | ^ kernel/sched/core.c:9931:22: error: use of undeclared identifier 'root_task_group'; did you mean 'task_group'? 9931 | init_auto_affinity(&root_task_group); | ^~~~~~~~~~~~~~~ | task_group kernel/sched/sched.h:2140:34: note: 'task_group' declared here 2140 | static inline struct task_group *task_group(struct task_struct *p) | ^ 4 errors generated. vim +/tg_update_affinity_domains +9719 kernel/sched/core.c 9699 9700 int sched_cpu_activate(unsigned int cpu) 9701 { 9702 struct rq *rq = cpu_rq(cpu); 9703 struct rq_flags rf; 9704 9705 /* 9706 * Clear the balance_push callback and prepare to schedule 9707 * regular tasks. 9708 */ 9709 balance_push_set(cpu, false); 9710 9711 #ifdef CONFIG_SCHED_SMT 9712 /* 9713 * When going up, increment the number of cores with SMT present. 9714 */ 9715 if (cpumask_weight(cpu_smt_mask(cpu)) == 2) 9716 static_branch_inc_cpuslocked(&sched_smt_present); 9717 #endif 9718 set_cpu_active(cpu, true); > 9719 tg_update_affinity_domains(cpu, 1); 9720 9721 if (sched_smp_initialized) { 9722 sched_update_numa(cpu, true); 9723 sched_domains_numa_masks_set(cpu); 9724 cpuset_cpu_active(); 9725 } 9726 9727 /* 9728 * Put the rq online, if not already. This happens: 9729 * 9730 * 1) In the early boot process, because we build the real domains 9731 * after all CPUs have been brought up. 9732 * 9733 * 2) At runtime, if cpuset_cpu_active() fails to rebuild the 9734 * domains. 9735 */ 9736 rq_lock_irqsave(rq, &rf); 9737 if (rq->rd) { 9738 BUG_ON(!cpumask_test_cpu(cpu, rq->rd->span)); 9739 set_rq_online(rq); 9740 } 9741 rq_unlock_irqrestore(rq, &rf); 9742 9743 return 0; 9744 } 9745 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-6.6 0/3] Add per-node vmstat info and memcg info
by Peng Zhang 24 Jan '24

24 Jan '24

From: ZhangPeng <zhangpeng362(a)huawei.com> Backport vmstat and memcg info patches, including moving pgdemote_* to per-node stats and add THP swap out info for anonymous reclaim. Li Zhijian (2): mm/vmstat: move pgdemote_* to per-node stats mm/vmstat: move pgdemote_* out of CONFIG_NUMA_BALANCING Xin Hao (1): mm: memcg: add THP swap out info for anonymous reclaim Documentation/admin-guide/cgroup-v2.rst | 9 +++++++++ include/linux/mmzone.h | 4 ++++ include/linux/vm_event_item.h | 3 --- mm/memcontrol.c | 2 ++ mm/page_io.c | 8 ++++---- mm/vmscan.c | 8 +++++--- mm/vmstat.c | 6 +++--- 7 files changed, 27 insertions(+), 13 deletions(-) -- 2.25.1

2 4

[openeuler:openEuler-1.0-LTS 20638/21565] versioncheck: ./drivers/i2c/busses/i2c-zhaoxin.c: 16 linux/version.h not needed.
by kernel test robot 24 Jan '24

24 Jan '24

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: fb3a7131883be36037affebc26a6597087cbd012 commit: 735c81b4d33c46ea097f6437f63ea624ccf6dee1 [20638/21565] i2c: Add Zhaoxin I2C driver reproduce: (https://download.01.org/0day-ci/archive/20240124/202401240409.RgTXCuyf-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202401240409.RgTXCuyf-lkp@intel.com/ versioncheck warnings: (new ones prefixed by >>) INFO PATH=/opt/cross/clang/bin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin /usr/bin/timeout -k 100 3h /usr/bin/make KCFLAGS= -Wtautological-compare -Wno-error=return-type -Wreturn-type -Wcast-function-type -funsigned-char -Wundef -Wformat-overflow -Wformat-truncation -Wstringop-overflow -Wrestrict -Wenum-conversion W=1 --keep-going HOSTCC=gcc-12 CC=gcc-12 -j32 KBUILD_MODPOST_WARN=1 ARCH=x86_64 versioncheck find ./* \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS -o -name .pc -o -name .hg -o -name .git \) -prune -o \ -name '*.[hcS]' -type f -print | sort \ | xargs perl -w ./scripts/checkversion.pl ./arch/arm64/kernel/hibernate.c: 25 linux/version.h not needed. ./arch/um/drivers/vector_kern.c: 11 linux/version.h not needed. ./arch/x86/hyperv/hv_apic.c: 23 linux/version.h not needed. ./drivers/block/rsxx/rsxx_priv.h: 28 linux/version.h not needed. ./drivers/block/skd_main.c: 30 linux/version.h not needed. ./drivers/crypto/cavium/cpt/cptpf_main.c: 16 linux/version.h not needed. ./drivers/crypto/cavium/zip/common.h: 59 linux/version.h not needed. ./drivers/crypto/ccree/cc_driver.h: 25 linux/version.h not needed. ./drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c: 50 linux/version.h not needed. ./drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c: 28 linux/version.h not needed. ./drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c: 26 linux/version.h not needed. ./drivers/gpu/drm/pl111/pl111_display.c: 19 linux/version.h not needed. ./drivers/gpu/drm/pl111/pl111_drv.c: 56 linux/version.h not needed. ./drivers/gpu/drm/tve200/tve200_display.c: 17 linux/version.h not needed. ./drivers/gpu/drm/tve200/tve200_drv.c: 42 linux/version.h not needed. ./drivers/hv/hv.c: 29 linux/version.h not needed. ./drivers/i2c/busses/i2c-brcmstb.c: 25 linux/version.h not needed. ./drivers/i2c/busses/i2c-xgene-slimpro.c: 35 linux/version.h not needed. >> ./drivers/i2c/busses/i2c-zhaoxin.c: 16 linux/version.h not needed. ./drivers/media/dvb-frontends/mxl5xx.c: 30 linux/version.h not needed. ./drivers/media/pci/cx25821/cx25821.h: 41 linux/version.h not needed. ./drivers/media/platform/s3c-camif/camif-core.c: 30 linux/version.h not needed. ./drivers/media/platform/sti/c8sectpfe/c8sectpfe-common.h: 16 linux/version.h not needed. ./drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c: 31 linux/version.h not needed. ./drivers/media/platform/sti/c8sectpfe/c8sectpfe-dvb.c: 14 linux/version.h not needed. ./drivers/media/usb/uvc/uvc_driver.c: 23 linux/version.h not needed. ./drivers/mtd/nand/raw/brcmnand/brcmnand.c: 15 linux/version.h not needed. ./drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c: 24 linux/version.h not needed. ./drivers/net/ethernet/hisilicon/hns3/hns3_cae/hns3_cae_init.c: 536: need linux/version.h ./drivers/net/ethernet/hisilicon/hns3/hns3_extension/hns3_enet_it.c: 84: need linux/version.h ./drivers/net/ethernet/hisilicon/hns3/kcompat.c: 82: need linux/version.h ./drivers/net/ethernet/huawei/bma/edma_drv/bma_include.h: 32 linux/version.h not needed. ./drivers/net/ethernet/huawei/bma/edma_drv/bma_pci.c: 17 linux/version.h not needed. ./drivers/net/ethernet/huawei/bma/kbox_drv/kbox_include.h: 20 linux/version.h not needed. ./drivers/net/ethernet/huawei/bma/kbox_drv/kbox_main.c: 22 linux/version.h not needed. ./drivers/net/ethernet/huawei/bma/kbox_drv/kbox_mce.c: 16 linux/version.h not needed. ./drivers/net/ethernet/huawei/bma/kbox_drv/kbox_ram_op.c: 16 linux/version.h not needed. ./drivers/net/ethernet/huawei/hinic/ossl_knl_linux.h: 22 linux/version.h not needed. ./drivers/net/ethernet/qlogic/qede/qede.h: 35 linux/version.h not needed. ./drivers/net/ethernet/qlogic/qede/qede_ethtool.c: 32 linux/version.h not needed. ./drivers/net/ethernet/qlogic/qede/qede_main.c: 34 linux/version.h not needed. ./drivers/net/usb/lan78xx.c: 17 linux/version.h not needed. ./drivers/net/wireless/rsi/rsi_91x_ps.c: 19 linux/version.h not needed. ./drivers/scsi/cxgbi/libcxgbi.h: 27 linux/version.h not needed. ./drivers/scsi/huawei/hifc/hifc_knl_adp.h: 23 linux/version.h not needed. ./drivers/scsi/qedf/qedf.h: 18 linux/version.h not needed. ./drivers/scsi/qedf/qedf_dbg.h: 16 linux/version.h not needed. ./drivers/scsi/qedi/qedi_dbg.h: 17 linux/version.h not needed. ./drivers/scsi/spraid/spraid_main.c: 9 linux/version.h not needed. ./drivers/soc/tegra/powergate-bpmp.c: 18 linux/version.h not needed. ./drivers/staging/gasket/gasket_interrupt.c: 12 linux/version.h not needed. ./drivers/staging/media/bcm2048/radio-bcm2048.c: 35 linux/version.h not needed. ./drivers/staging/mt7621-eth/mtk_eth_soc.h: 24 linux/version.h not needed. ./drivers/staging/mt7621-mmc/dbg.c: 36 linux/version.h not needed. ./drivers/staging/rtl8723bs/include/drv_types.h: 17 linux/version.h not needed. ./drivers/staging/rtl8723bs/include/ioctl_cfg80211.h: 10 linux/version.h not needed. ./drivers/staging/vboxvideo/vbox_drv.h: 36 linux/version.h not needed. ./drivers/usb/early/xhci-dbc.c: 21 linux/version.h not needed. ./drivers/watchdog/ziirave_wdt.c: 30 linux/version.h not needed. ./fs/ext4/ext4.h: 31 linux/version.h not needed. ./fs/proc/etmem_scan.c: 13 linux/version.h not needed. ./include/linux/qed/qed_ll2_if.h: 41 linux/version.h not needed. ./samples/bpf/sampleip_kern.c: 7 linux/version.h not needed. ./samples/bpf/trace_event_kern.c: 8 linux/version.h not needed. ./samples/mic/mpssd/mpssd.c: 40 linux/version.h not needed. ./sound/soc/codecs/cs35l35.c: 16 linux/version.h not needed. ./sound/soc/codecs/cs42l42.c: 18 linux/version.h not needed. ./tools/perf/include/bpf/bpf.h: 36: need linux/version.h ./tools/perf/tests/bpf-script-example.c: 48: need linux/version.h ./tools/perf/tests/bpf-script-test-kbuild.c: 20: need linux/version.h ./tools/perf/tests/bpf-script-test-prologue.c: 46: need linux/version.h ./tools/perf/tests/bpf-script-test-relocation.c: 50: need linux/version.h ./tools/testing/selftests/bpf/test_tcp_estats.c: 37 linux/version.h not needed. -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS 18678/21565] versioncheck: ./drivers/scsi/spraid/spraid_main.c: 9 linux/version.h not needed.
by kernel test robot 24 Jan '24

24 Jan '24

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: fb3a7131883be36037affebc26a6597087cbd012 commit: bb9f019c483389f48183be55d92dbb21769fa55a [18678/21565] scsi:spraid: support Ramaxel's spraid driver reproduce: (https://download.01.org/0day-ci/archive/20240124/202401240345.cyVvN1lf-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202401240345.cyVvN1lf-lkp@intel.com/ versioncheck warnings: (new ones prefixed by >>) INFO PATH=/opt/cross/clang/bin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin /usr/bin/timeout -k 100 3h /usr/bin/make KCFLAGS= -Wtautological-compare -Wno-error=return-type -Wreturn-type -Wcast-function-type -funsigned-char -Wundef -Wformat-overflow -Wformat-truncation -Wstringop-overflow -Wrestrict -Wenum-conversion W=1 --keep-going HOSTCC=gcc-12 CC=gcc-12 -j32 KBUILD_MODPOST_WARN=1 ARCH=x86_64 versioncheck find ./* \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS -o -name .pc -o -name .hg -o -name .git \) -prune -o \ -name '*.[hcS]' -type f -print | sort \ | xargs perl -w ./scripts/checkversion.pl ./arch/arm64/kernel/hibernate.c: 25 linux/version.h not needed. ./arch/um/drivers/vector_kern.c: 11 linux/version.h not needed. ./arch/x86/hyperv/hv_apic.c: 23 linux/version.h not needed. ./drivers/block/rsxx/rsxx_priv.h: 28 linux/version.h not needed. ./drivers/block/skd_main.c: 30 linux/version.h not needed. ./drivers/crypto/cavium/cpt/cptpf_main.c: 16 linux/version.h not needed. ./drivers/crypto/cavium/zip/common.h: 59 linux/version.h not needed. ./drivers/crypto/ccree/cc_driver.h: 25 linux/version.h not needed. ./drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c: 50 linux/version.h not needed. ./drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c: 28 linux/version.h not needed. ./drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c: 26 linux/version.h not needed. ./drivers/gpu/drm/pl111/pl111_display.c: 19 linux/version.h not needed. ./drivers/gpu/drm/pl111/pl111_drv.c: 56 linux/version.h not needed. ./drivers/gpu/drm/tve200/tve200_display.c: 17 linux/version.h not needed. ./drivers/gpu/drm/tve200/tve200_drv.c: 42 linux/version.h not needed. ./drivers/hv/hv.c: 29 linux/version.h not needed. ./drivers/i2c/busses/i2c-brcmstb.c: 25 linux/version.h not needed. ./drivers/i2c/busses/i2c-xgene-slimpro.c: 35 linux/version.h not needed. ./drivers/media/dvb-frontends/mxl5xx.c: 30 linux/version.h not needed. ./drivers/media/pci/cx25821/cx25821.h: 41 linux/version.h not needed. ./drivers/media/platform/s3c-camif/camif-core.c: 30 linux/version.h not needed. ./drivers/media/platform/sti/c8sectpfe/c8sectpfe-common.h: 16 linux/version.h not needed. ./drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c: 31 linux/version.h not needed. ./drivers/media/platform/sti/c8sectpfe/c8sectpfe-dvb.c: 14 linux/version.h not needed. ./drivers/media/usb/uvc/uvc_driver.c: 23 linux/version.h not needed. ./drivers/mtd/nand/raw/brcmnand/brcmnand.c: 15 linux/version.h not needed. ./drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c: 24 linux/version.h not needed. ./drivers/net/ethernet/hisilicon/hns3/hns3_cae/hns3_cae_init.c: 536: need linux/version.h ./drivers/net/ethernet/hisilicon/hns3/hns3_extension/hns3_enet_it.c: 84: need linux/version.h ./drivers/net/ethernet/hisilicon/hns3/kcompat.c: 82: need linux/version.h ./drivers/net/ethernet/huawei/bma/edma_drv/bma_include.h: 32 linux/version.h not needed. ./drivers/net/ethernet/huawei/bma/edma_drv/bma_pci.c: 17 linux/version.h not needed. ./drivers/net/ethernet/huawei/bma/kbox_drv/kbox_include.h: 20 linux/version.h not needed. ./drivers/net/ethernet/huawei/bma/kbox_drv/kbox_main.c: 22 linux/version.h not needed. ./drivers/net/ethernet/huawei/bma/kbox_drv/kbox_mce.c: 16 linux/version.h not needed. ./drivers/net/ethernet/huawei/bma/kbox_drv/kbox_ram_op.c: 16 linux/version.h not needed. ./drivers/net/ethernet/huawei/hinic/ossl_knl_linux.h: 22 linux/version.h not needed. ./drivers/net/ethernet/qlogic/qede/qede.h: 35 linux/version.h not needed. ./drivers/net/ethernet/qlogic/qede/qede_ethtool.c: 32 linux/version.h not needed. ./drivers/net/ethernet/qlogic/qede/qede_main.c: 34 linux/version.h not needed. ./drivers/net/usb/lan78xx.c: 17 linux/version.h not needed. ./drivers/net/wireless/rsi/rsi_91x_ps.c: 19 linux/version.h not needed. ./drivers/scsi/cxgbi/libcxgbi.h: 27 linux/version.h not needed. ./drivers/scsi/huawei/hifc/hifc_knl_adp.h: 23 linux/version.h not needed. ./drivers/scsi/qedf/qedf.h: 18 linux/version.h not needed. ./drivers/scsi/qedf/qedf_dbg.h: 16 linux/version.h not needed. ./drivers/scsi/qedi/qedi_dbg.h: 17 linux/version.h not needed. >> ./drivers/scsi/spraid/spraid_main.c: 9 linux/version.h not needed. ./drivers/soc/tegra/powergate-bpmp.c: 18 linux/version.h not needed. ./drivers/staging/gasket/gasket_interrupt.c: 12 linux/version.h not needed. ./drivers/staging/media/bcm2048/radio-bcm2048.c: 35 linux/version.h not needed. ./drivers/staging/mt7621-eth/mtk_eth_soc.h: 24 linux/version.h not needed. ./drivers/staging/mt7621-mmc/dbg.c: 36 linux/version.h not needed. ./drivers/staging/rtl8723bs/include/drv_types.h: 17 linux/version.h not needed. ./drivers/staging/rtl8723bs/include/ioctl_cfg80211.h: 10 linux/version.h not needed. ./drivers/staging/vboxvideo/vbox_drv.h: 36 linux/version.h not needed. ./drivers/usb/early/xhci-dbc.c: 21 linux/version.h not needed. ./drivers/watchdog/ziirave_wdt.c: 30 linux/version.h not needed. ./fs/ext4/ext4.h: 30 linux/version.h not needed. ./fs/proc/etmem_scan.c: 13 linux/version.h not needed. ./include/linux/qed/qed_ll2_if.h: 41 linux/version.h not needed. ./samples/bpf/sampleip_kern.c: 7 linux/version.h not needed. ./samples/bpf/trace_event_kern.c: 8 linux/version.h not needed. ./samples/mic/mpssd/mpssd.c: 40 linux/version.h not needed. ./sound/soc/codecs/cs35l35.c: 16 linux/version.h not needed. ./sound/soc/codecs/cs42l42.c: 18 linux/version.h not needed. ./tools/perf/include/bpf/bpf.h: 36: need linux/version.h ./tools/perf/tests/bpf-script-example.c: 48: need linux/version.h ./tools/perf/tests/bpf-script-test-kbuild.c: 20: need linux/version.h ./tools/perf/tests/bpf-script-test-prologue.c: 46: need linux/version.h ./tools/perf/tests/bpf-script-test-relocation.c: 50: need linux/version.h ./tools/testing/selftests/bpf/test_tcp_estats.c: 37 linux/version.h not needed. -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS 13535/21565] versioncheck: ./drivers/net/ethernet/huawei/hinic/ossl_knl_linux.h: 22 linux/version.h not needed.
by kernel test robot 24 Jan '24

24 Jan '24

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: fb3a7131883be36037affebc26a6597087cbd012 commit: 1f15bf7613a9e2ad479486dbfbd6ea47c1176306 [13535/21565] net/hinic: Delete the remaining old linux kernel adaptation interface reproduce: (https://download.01.org/0day-ci/archive/20240124/202401240125.Z7PTVEEr-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202401240125.Z7PTVEEr-lkp@intel.com/ versioncheck warnings: (new ones prefixed by >>) INFO PATH=/opt/cross/clang/bin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin /usr/bin/timeout -k 100 3h /usr/bin/make KCFLAGS= -Wtautological-compare -Wno-error=return-type -Wreturn-type -Wcast-function-type -funsigned-char -Wundef -Wformat-overflow -Wformat-truncation -Wstringop-overflow -Wrestrict -Wenum-conversion W=1 --keep-going HOSTCC=gcc-12 CC=gcc-12 -j32 KBUILD_MODPOST_WARN=1 ARCH=x86_64 versioncheck find ./* \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS -o -name .pc -o -name .hg -o -name .git \) -prune -o \ -name '*.[hcS]' -type f -print | sort \ | xargs perl -w ./scripts/checkversion.pl ./arch/arm64/kernel/hibernate.c: 25 linux/version.h not needed. ./arch/um/drivers/vector_kern.c: 11 linux/version.h not needed. ./arch/x86/hyperv/hv_apic.c: 23 linux/version.h not needed. ./drivers/block/rsxx/rsxx_priv.h: 28 linux/version.h not needed. ./drivers/block/skd_main.c: 30 linux/version.h not needed. ./drivers/crypto/cavium/cpt/cptpf_main.c: 16 linux/version.h not needed. ./drivers/crypto/cavium/zip/common.h: 59 linux/version.h not needed. ./drivers/crypto/ccree/cc_driver.h: 25 linux/version.h not needed. ./drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c: 50 linux/version.h not needed. ./drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c: 28 linux/version.h not needed. ./drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c: 26 linux/version.h not needed. ./drivers/gpu/drm/pl111/pl111_display.c: 19 linux/version.h not needed. ./drivers/gpu/drm/pl111/pl111_drv.c: 56 linux/version.h not needed. ./drivers/gpu/drm/tve200/tve200_display.c: 17 linux/version.h not needed. ./drivers/gpu/drm/tve200/tve200_drv.c: 42 linux/version.h not needed. ./drivers/hv/hv.c: 29 linux/version.h not needed. ./drivers/i2c/busses/i2c-brcmstb.c: 25 linux/version.h not needed. ./drivers/i2c/busses/i2c-xgene-slimpro.c: 35 linux/version.h not needed. ./drivers/media/dvb-frontends/mxl5xx.c: 30 linux/version.h not needed. ./drivers/media/pci/cx25821/cx25821.h: 41 linux/version.h not needed. ./drivers/media/platform/s3c-camif/camif-core.c: 30 linux/version.h not needed. ./drivers/media/platform/sti/c8sectpfe/c8sectpfe-common.h: 16 linux/version.h not needed. ./drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c: 31 linux/version.h not needed. ./drivers/media/platform/sti/c8sectpfe/c8sectpfe-dvb.c: 14 linux/version.h not needed. ./drivers/media/usb/uvc/uvc_driver.c: 23 linux/version.h not needed. ./drivers/mtd/nand/raw/brcmnand/brcmnand.c: 15 linux/version.h not needed. ./drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c: 24 linux/version.h not needed. ./drivers/net/ethernet/hisilicon/hns3/hns-customer/hns3_enet_it.c: 84: need linux/version.h ./drivers/net/ethernet/hisilicon/hns3/hns3_cae/hns3_cae_init.c: 536: need linux/version.h ./drivers/net/ethernet/hisilicon/hns3/kcompat.c: 82: need linux/version.h >> ./drivers/net/ethernet/huawei/hinic/ossl_knl_linux.h: 22 linux/version.h not needed. ./drivers/net/ethernet/qlogic/qede/qede.h: 35 linux/version.h not needed. ./drivers/net/ethernet/qlogic/qede/qede_ethtool.c: 32 linux/version.h not needed. ./drivers/net/ethernet/qlogic/qede/qede_main.c: 34 linux/version.h not needed. ./drivers/net/usb/lan78xx.c: 17 linux/version.h not needed. ./drivers/net/wireless/rsi/rsi_91x_ps.c: 19 linux/version.h not needed. ./drivers/scsi/cxgbi/libcxgbi.h: 27 linux/version.h not needed. ./drivers/scsi/qedf/qedf.h: 18 linux/version.h not needed. ./drivers/scsi/qedf/qedf_dbg.h: 16 linux/version.h not needed. ./drivers/scsi/qedi/qedi_dbg.h: 17 linux/version.h not needed. ./drivers/soc/tegra/powergate-bpmp.c: 18 linux/version.h not needed. ./drivers/staging/gasket/gasket_interrupt.c: 12 linux/version.h not needed. ./drivers/staging/media/bcm2048/radio-bcm2048.c: 35 linux/version.h not needed. ./drivers/staging/mt7621-eth/mtk_eth_soc.h: 24 linux/version.h not needed. ./drivers/staging/mt7621-mmc/dbg.c: 36 linux/version.h not needed. ./drivers/staging/rtl8723bs/include/drv_types.h: 17 linux/version.h not needed. ./drivers/staging/rtl8723bs/include/ioctl_cfg80211.h: 10 linux/version.h not needed. ./drivers/staging/vboxvideo/vbox_drv.h: 36 linux/version.h not needed. ./drivers/usb/early/xhci-dbc.c: 21 linux/version.h not needed. ./drivers/watchdog/ziirave_wdt.c: 30 linux/version.h not needed. ./fs/ext4/ext4.h: 30 linux/version.h not needed. ./include/linux/qed/qed_ll2_if.h: 41 linux/version.h not needed. ./samples/bpf/sampleip_kern.c: 7 linux/version.h not needed. ./samples/bpf/trace_event_kern.c: 8 linux/version.h not needed. ./samples/mic/mpssd/mpssd.c: 40 linux/version.h not needed. ./sound/soc/codecs/cs35l35.c: 16 linux/version.h not needed. ./sound/soc/codecs/cs42l42.c: 18 linux/version.h not needed. ./tools/perf/include/bpf/bpf.h: 36: need linux/version.h ./tools/perf/tests/bpf-script-example.c: 48: need linux/version.h ./tools/perf/tests/bpf-script-test-kbuild.c: 20: need linux/version.h ./tools/perf/tests/bpf-script-test-prologue.c: 46: need linux/version.h ./tools/perf/tests/bpf-script-test-relocation.c: 50: need linux/version.h ./tools/testing/selftests/bpf/test_tcp_estats.c: 37 linux/version.h not needed. -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-6.6 0/2] misc for fd
by Chen Ridong 23 Jan '24

23 Jan '24

Chen Ridong (2): cgrou/misc: misc for controlling fd cgroup/misc: disable CONFIG_CGROUP_MISC_FD in openeuler_defconfig arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + fs/Makefile | 1 - fs/file.c | 16 +-- include/linux/fdtable.h | 1 + include/linux/files-cgroup.h | 33 +++++++ include/linux/filescontrol.h | 99 ++++++++++++++++--- include/linux/misc-fd.h | 22 +++++ include/linux/misc_cgroup.h | 4 + init/Kconfig | 10 ++ kernel/cgroup/Makefile | 2 + .../cgroup/files-cgroup.c | 18 +--- kernel/cgroup/misc-fd.c | 91 +++++++++++++++++ kernel/cgroup/misc.c | 4 + 14 files changed, 265 insertions(+), 38 deletions(-) create mode 100644 include/linux/files-cgroup.h create mode 100644 include/linux/misc-fd.h rename fs/filescontrol.c => kernel/cgroup/files-cgroup.c (95%) create mode 100644 kernel/cgroup/misc-fd.c -- 2.34.1

2 3

[openeuler:openEuler-1.0-LTS] BUILD REGRESSION fb3a7131883be36037affebc26a6597087cbd012
by kernel test robot 23 Jan '24

23 Jan '24

tree/branch: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS branch HEAD: fb3a7131883be36037affebc26a6597087cbd012 !4101 netfilter: nf_tables: fix pointer math issue in nft_byteorder_eval() Error/Warning reports: https://lore.kernel.org/oe-kbuild-all/202401230321.uVO9BE4k-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202401230904.waKHfYdD-lkp@intel.com Error/Warning: (recently discovered and may have been fixed) ./drivers/net/ethernet/hisilicon/hns3/kcompat.c: 82: need linux/version.h drivers/char/svm.c:1272:5: warning: no previous prototype for 'svm_get_pasid' [-Wmissing-prototypes] drivers/char/svm.c:1762:36: warning: 'svm_acpi_match' defined but not used [-Wunused-const-variable=] drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c:66:19: warning: array subscript 0 is outside array bounds of 'struct aperture[0]' [-Warray-bounds=] drivers/pci/pcie/aer.c:465:15: warning: array subscript 0 is outside array bounds of 'u32[0]' {aka 'unsigned int[]'} [-Warray-bounds=] Error/Warning ids grouped by kconfigs: gcc_recent_errors |-- arm64-allmodconfig | |-- arch-arm64-kernel-vdso-gettimeofday.c:warning:no-previous-prototype-for-__kernel_clock_getres | |-- arch-arm64-kernel-vdso-gettimeofday.c:warning:no-previous-prototype-for-__kernel_clock_gettime | |-- arch-arm64-kernel-vdso-gettimeofday.c:warning:no-previous-prototype-for-__kernel_gettimeofday | |-- drivers-char-svm.c:warning:no-previous-prototype-for-svm_get_pasid | |-- drivers-gpio-gpio-dwapb.c:warning:enable_ascend_gpio_dwapb_setup-defined-but-not-used | |-- drivers-gpio-gpio-phytium-pci.c:warning:ordered-comparison-of-pointer-with-integer-zero | |-- drivers-gpu-drm-hisilicon-hibmc-hibmc_drm_drv.c:warning:array-subscript-is-outside-array-bounds-of-struct-aperture | |-- drivers-gpu-drm-phytium-e2000_dc.c:warning:no-previous-prototype-for-e2000_dc_hw_config_pix_clock | |-- drivers-gpu-drm-phytium-e2000_dc.c:warning:no-previous-prototype-for-e2000_dc_hw_fb_format_check | |-- drivers-gpu-drm-phytium-e2000_dc.c:warning:no-previous-prototype-for-e2000_dc_hw_plane_get_cursor_format | |-- drivers-gpu-drm-phytium-e2000_dc.c:warning:no-previous-prototype-for-e2000_dc_hw_plane_get_primary_format | |-- drivers-gpu-drm-phytium-e2000_dc.c:warning:no-previous-prototype-for-e2000_dc_hw_reset | |-- drivers-gpu-drm-phytium-e2000_dc.c:warning:no-previous-prototype-for-e2000_dc_hw_update_cursor_hi_addr | |-- drivers-gpu-drm-phytium-e2000_dc.c:warning:no-previous-prototype-for-e2000_dc_hw_update_primary_hi_addr | |-- drivers-gpu-drm-phytium-e2000_dc.c:warning:no-previous-prototype-for-e2000_dc_hw_vram_init | |-- drivers-gpu-drm-phytium-e2000_dp.c:warning:no-previous-prototype-for-e2000_dp_hw_get_source_lane_count | |-- drivers-gpu-drm-phytium-e2000_dp.c:warning:no-previous-prototype-for-e2000_dp_hw_reset | |-- drivers-gpu-drm-phytium-e2000_dp.c:warning:no-previous-prototype-for-e2000_dp_hw_spread_is_enable | |-- drivers-gpu-drm-phytium-phytium_crtc.c:warning:no-previous-prototype-for-phytium_crtc_atomic_destroy_state | |-- drivers-gpu-drm-phytium-phytium_crtc.c:warning:no-previous-prototype-for-phytium_crtc_atomic_duplicate_state | |-- drivers-gpu-drm-phytium-phytium_crtc.c:warning:variable-phytium_crtc_state-set-but-not-used | |-- drivers-gpu-drm-phytium-phytium_debugfs.c:warning:no-previous-prototype-for-phytium_debugfs_connector_add | |-- drivers-gpu-drm-phytium-phytium_debugfs.c:warning:no-previous-prototype-for-phytium_debugfs_display_register | |-- drivers-gpu-drm-phytium-phytium_display_drv.c:warning:variable-status-set-but-not-used | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-phytium_dp_adjust_link_train_parameter | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-phytium_dp_coding_8b10b_need_enable | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-phytium_dp_dpcd_sink_dpms | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-phytium_dp_fast_link_train | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-phytium_dp_get_link_train_fallback_values | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-phytium_dp_hpd_poll_handler | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-phytium_dp_hw_config_video | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-phytium_dp_hw_disable_input_source | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-phytium_dp_hw_disable_output | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-phytium_dp_hw_disable_video | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-phytium_dp_hw_enable_audio | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-phytium_dp_hw_enable_input_source | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-phytium_dp_hw_enable_output | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-phytium_dp_hw_enable_video | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-phytium_dp_hw_hpd_irq_setup | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-phytium_dp_hw_init | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-phytium_dp_hw_output_is_enable | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-phytium_dp_hw_video_is_enable | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-phytium_dp_scrambled_need_enable | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-phytium_dp_start_link_train | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-phytium_get_encoder_crtc_mask | |-- drivers-gpu-drm-phytium-phytium_fb.c:warning:variable-hsub-set-but-not-used | |-- drivers-gpu-drm-phytium-phytium_fbdev.c:warning:no-previous-prototype-for-phytium_drm_fbdev_fini | |-- drivers-gpu-drm-phytium-phytium_fbdev.c:warning:no-previous-prototype-for-phytium_drm_fbdev_init | |-- drivers-gpu-drm-phytium-phytium_gem.c:warning:no-previous-prototype-for-phytium_dma_transfer | |-- drivers-gpu-drm-phytium-phytium_gem.c:warning:no-previous-prototype-for-phytium_memory_pool_alloc | |-- drivers-gpu-drm-phytium-phytium_gem.c:warning:no-previous-prototype-for-phytium_memory_pool_free | |-- drivers-gpu-drm-phytium-phytium_panel.c:warning:no-previous-prototype-for-phytium_dp_panel_release_backlight_funcs | |-- drivers-gpu-drm-phytium-phytium_pci.c:warning:no-previous-prototype-for-phytium_pci_dma_fini | |-- drivers-gpu-drm-phytium-phytium_pci.c:warning:no-previous-prototype-for-phytium_pci_dma_init | |-- drivers-gpu-drm-phytium-phytium_pci.c:warning:no-previous-prototype-for-phytium_pci_vram_fini | |-- drivers-gpu-drm-phytium-phytium_pci.c:warning:no-previous-prototype-for-phytium_pci_vram_hw_init | |-- drivers-gpu-drm-phytium-phytium_pci.c:warning:no-previous-prototype-for-phytium_pci_vram_init | |-- drivers-gpu-drm-phytium-phytium_plane.c:warning:no-previous-prototype-for-phytium_plane_atomic_destroy_state | |-- drivers-gpu-drm-phytium-phytium_plane.c:warning:no-previous-prototype-for-phytium_plane_atomic_duplicate_state | |-- drivers-gpu-drm-phytium-phytium_plane.c:warning:no-previous-prototype-for-phytium_plane_atomic_set_property | |-- drivers-gpu-drm-phytium-phytium_plane.c:warning:no-previous-prototype-for-phytium_plane_destroy | |-- drivers-gpu-drm-phytium-phytium_plane.c:warning:variable-crtc_x-set-but-not-used | |-- drivers-gpu-drm-phytium-phytium_plane.c:warning:variable-crtc_y-set-but-not-used | |-- drivers-gpu-drm-phytium-phytium_platform.c:warning:no-previous-prototype-for-phytium_platform_carveout_mem_fini | |-- drivers-gpu-drm-phytium-phytium_platform.c:warning:no-previous-prototype-for-phytium_platform_carveout_mem_init | |-- drivers-gpu-drm-phytium-x100_dc.c:warning:no-previous-prototype-for-x100_dc_hw_clear_msi_irq | |-- drivers-gpu-drm-phytium-x100_dc.c:warning:no-previous-prototype-for-x100_dc_hw_config_pix_clock | |-- drivers-gpu-drm-phytium-x100_dc.c:warning:no-previous-prototype-for-x100_dc_hw_disable | |-- drivers-gpu-drm-phytium-x100_dc.c:warning:no-previous-prototype-for-x100_dc_hw_fb_format_check | |-- drivers-gpu-drm-phytium-x100_dc.c:warning:no-previous-prototype-for-x100_dc_hw_plane_get_cursor_format | |-- drivers-gpu-drm-phytium-x100_dc.c:warning:no-previous-prototype-for-x100_dc_hw_plane_get_primary_format | |-- drivers-gpu-drm-phytium-x100_dc.c:warning:no-previous-prototype-for-x100_dc_hw_update_dcreq | |-- drivers-gpu-drm-phytium-x100_dc.c:warning:no-previous-prototype-for-x100_dc_hw_update_primary_hi_addr | |-- drivers-gpu-drm-phytium-x100_dc.c:warning:no-previous-prototype-for-x100_dc_hw_vram_init | |-- drivers-gpu-drm-phytium-x100_dp.c:warning:no-previous-prototype-for-x100_dp_hw_get_source_lane_count | |-- drivers-gpu-drm-phytium-x100_dp.c:warning:no-previous-prototype-for-x100_dp_hw_reset | |-- drivers-gpu-drm-phytium-x100_dp.c:warning:no-previous-prototype-for-x100_dp_hw_spread_is_enable | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-clk_divisor_fast_plus_mode-not-described-in-tegra_i2c_hw_feature | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-clk_divisor_non_hs_mode-not-described-in-tegra_i2c_dev | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-has_mst_fifo-not-described-in-tegra_i2c_hw_feature | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-has_multi_master_mode-not-described-in-tegra_i2c_hw_feature | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-has_slcg_override_reg-not-described-in-tegra_i2c_hw_feature | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-irq_disabled-not-described-in-tegra_i2c_dev | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-is_multimaster_mode-not-described-in-tegra_i2c_dev | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-rst-not-described-in-tegra_i2c_dev | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-xfer_lock-not-described-in-tegra_i2c_dev | |-- drivers-iommu-arm-smmu-v3-context.c:warning:no-previous-prototype-for-arm_smmu_get_cd_mpam | |-- drivers-iommu-arm-smmu-v3-context.c:warning:no-previous-prototype-for-arm_smmu_set_cd_mpam | |-- drivers-iommu-arm-smmu-v3.c:warning:Function-parameter-or-member-dev-not-described-in-arm_smmu_get_dev_user_mpam_en | |-- drivers-iommu-arm-smmu-v3.c:warning:Function-parameter-or-member-dev-not-described-in-arm_smmu_set_dev_mpam | |-- drivers-iommu-arm-smmu-v3.c:warning:Function-parameter-or-member-dev-not-described-in-arm_smmu_set_dev_user_mpam_en | |-- drivers-iommu-arm-smmu-v3.c:warning:Function-parameter-or-member-partid-not-described-in-arm_smmu_get_dev_mpam | |-- drivers-iommu-arm-smmu-v3.c:warning:Function-parameter-or-member-partid-not-described-in-arm_smmu_set_dev_mpam | |-- drivers-iommu-arm-smmu-v3.c:warning:Function-parameter-or-member-pmg-not-described-in-arm_smmu_get_dev_mpam | |-- drivers-iommu-arm-smmu-v3.c:warning:Function-parameter-or-member-pmg-not-described-in-arm_smmu_set_dev_mpam | |-- drivers-iommu-arm-smmu-v3.c:warning:Function-parameter-or-member-s1mpam-not-described-in-arm_smmu_get_dev_mpam | |-- drivers-iommu-arm-smmu-v3.c:warning:Function-parameter-or-member-s1mpam-not-described-in-arm_smmu_set_dev_mpam | |-- drivers-iommu-arm-smmu-v3.c:warning:Function-parameter-or-member-ssid-not-described-in-arm_smmu_get_dev_mpam | |-- drivers-iommu-arm-smmu-v3.c:warning:Function-parameter-or-member-ssid-not-described-in-arm_smmu_set_dev_mpam | |-- drivers-iommu-arm-smmu-v3.c:warning:Function-parameter-or-member-user_mpam_en-not-described-in-arm_smmu_get_dev_user_mpam_en | |-- drivers-iommu-arm-smmu-v3.c:warning:Function-parameter-or-member-user_mpam_en-not-described-in-arm_smmu_set_dev_user_mpam_en | |-- drivers-iommu-arm-smmu-v3.c:warning:no-previous-prototype-for-arm_smmu_get_dev_mpam | |-- drivers-iommu-arm-smmu-v3.c:warning:no-previous-prototype-for-arm_smmu_get_dev_user_mpam_en | |-- drivers-iommu-arm-smmu-v3.c:warning:no-previous-prototype-for-arm_smmu_set_dev_mpam | |-- drivers-iommu-arm-smmu-v3.c:warning:no-previous-prototype-for-arm_smmu_set_dev_user_mpam_en | |-- drivers-md-bcache-acache.c:warning:array-subscript-unknown-is-outside-array-bounds-of-struct-acache_info | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-acache_open | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-acache_prefetch_init | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-acache_release | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-get_bio_by_item | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-get_cached_device_by_dev | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-init_acache_circ | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-read_circ_slice | |-- drivers-mmc-host-phytium-mci.c:warning:variable-read-set-but-not-used | |-- drivers-mmc-host-phytium-sdci.c:warning:variable-cmd-set-but-not-used | |-- drivers-mmc-host-phytium-sdci.c:warning:variable-read-set-but-not-used | |-- drivers-net-can-phytium-phytium_can.c:warning:Function-parameter-or-member-dev-not-described-in-phytium_can_start_xmit | |-- drivers-net-can-phytium-phytium_can.c:warning:Function-parameter-or-member-skb-not-described-in-phytium_can_start_xmit | |-- drivers-net-ethernet-hisilicon-hns3-hns3_enet.c:warning:unused-variable-handle | |-- drivers-net-ethernet-huawei-hinic-hinic_api_cmd.c:warning:Excess-function-parameter-chain-description-in-api_cmd_create_chain | |-- drivers-net-ethernet-huawei-hinic-hinic_api_cmd.c:warning:Function-parameter-or-member-cmd_chain-not-described-in-api_cmd_create_chain | |-- drivers-net-ethernet-huawei-hinic-hinic_cfg.c:warning:no-previous-prototype-for-cfg_get_func_sf_en | |-- drivers-net-ethernet-huawei-hinic-hinic_cfg.c:warning:no-previous-prototype-for-cfg_set_func_sf_en | |-- drivers-net-ethernet-huawei-hinic-hinic_cfg.c:warning:no-previous-prototype-for-hinic_vector_to_irq | |-- drivers-net-ethernet-huawei-hinic-hinic_cmdq.c:warning:no-previous-prototype-for-hinic_set_cmdq_ctxts | |-- drivers-net-ethernet-huawei-hinic-hinic_dbgtool_knl.c:warning:Function-parameter-or-member-arg-not-described-in-dbgtool_knl_unlocked_ioctl | |-- drivers-net-ethernet-huawei-hinic-hinic_dbgtool_knl.c:warning:Function-parameter-or-member-in_size-not-described-in-ffm_intr_msg_record | |-- drivers-net-ethernet-huawei-hinic-hinic_dbgtool_knl.c:warning:Function-parameter-or-member-out_size-not-described-in-ffm_intr_msg_record | |-- drivers-net-ethernet-huawei-hinic-hinic_dcb.c:warning:no-previous-prototype-for-__set_cos_up_map | |-- drivers-net-ethernet-huawei-hinic-hinic_dcb.c:warning:no-previous-prototype-for-hinic_dcb_config_init | |-- drivers-net-ethernet-huawei-hinic-hinic_dcb.c:warning:no-previous-prototype-for-hinic_dcbnl_set_all | |-- drivers-net-ethernet-huawei-hinic-hinic_dcb.c:warning:no-previous-prototype-for-hinic_init_ieee_settings | |-- drivers-net-ethernet-huawei-hinic-hinic_dcb.c:warning:no-previous-prototype-for-hinic_set_prio_tc_map | |-- drivers-net-ethernet-huawei-hinic-hinic_eqs.c:warning:Excess-function-parameter-hw_cb-description-in-hinic_aeq_register_hw_cb | |-- drivers-net-ethernet-huawei-hinic-hinic_eqs.c:warning:Excess-function-parameter-sw_cb-description-in-hinic_aeq_register_swe_cb | |-- drivers-net-ethernet-huawei-hinic-hinic_eqs.c:warning:Function-parameter-or-member-aeq_swe_cb-not-described-in-hinic_aeq_register_swe_cb | |-- drivers-net-ethernet-huawei-hinic-hinic_eqs.c:warning:Function-parameter-or-member-hwe_cb-not-described-in-hinic_aeq_register_hw_cb | |-- drivers-net-ethernet-huawei-hinic-hinic_eqs.c:warning:implicit-conversion-from-enum-hinic_aeq_type-to-enum-hinic_ucode_event_type | |-- drivers-net-ethernet-huawei-hinic-hinic_eqs.c:warning:variable-lev-set-but-not-used | |-- drivers-net-ethernet-huawei-hinic-hinic_ethtool.c:warning:no-previous-prototype-for-hinic_get_io_stats | |-- drivers-net-ethernet-huawei-hinic-hinic_ethtool.c:warning:no-previous-prototype-for-hinic_get_io_stats_size | |-- drivers-net-ethernet-huawei-hinic-hinic_ethtool.c:warning:no-previous-prototype-for-hinic_lp_test | |-- drivers-net-ethernet-huawei-hinic-hinic_hwdev.c:warning:no-previous-prototype-for-_set_led_status | |-- drivers-net-ethernet-huawei-hinic-hinic_hwdev.c:warning:no-previous-prototype-for-comm_pf_mbox_handler | |-- drivers-net-ethernet-huawei-hinic-hinic_hwdev.c:warning:no-previous-prototype-for-hinic_get_phy_init_status | |-- drivers-net-ethernet-huawei-hinic-hinic_hwdev.c:warning:no-previous-prototype-for-hinic_msg_to_mgmt_no_ack | |-- drivers-net-ethernet-huawei-hinic-hinic_hwdev.c:warning:no-previous-prototype-for-hinic_ppf_ht_gpa_deinit | |-- drivers-net-ethernet-huawei-hinic-hinic_hwdev.c:warning:no-previous-prototype-for-hinic_ppf_ht_gpa_init | |-- drivers-net-ethernet-huawei-hinic-hinic_hwdev.c:warning:no-previous-prototype-for-mqm_eqm_alloc_page_mem | |-- drivers-net-ethernet-huawei-hinic-hinic_hwdev.c:warning:no-previous-prototype-for-mqm_eqm_deinit | |-- drivers-net-ethernet-huawei-hinic-hinic_hwdev.c:warning:no-previous-prototype-for-mqm_eqm_free_page_mem | |-- drivers-net-ethernet-huawei-hinic-hinic_hwdev.c:warning:no-previous-prototype-for-mqm_eqm_init | |-- drivers-net-ethernet-huawei-hinic-hinic_hwdev.c:warning:no-previous-prototype-for-mqm_eqm_set_cfg_2_hw | |-- drivers-net-ethernet-huawei-hinic-hinic_hwdev.c:warning:no-previous-prototype-for-mqm_eqm_set_page_2_hw | |-- drivers-net-ethernet-huawei-hinic-hinic_hwdev.c:warning:no-previous-prototype-for-mqm_eqm_try_alloc_mem | |-- drivers-net-ethernet-huawei-hinic-hinic_hwdev.c:warning:snprintf-argument-overlaps-destination-object-tmp_str | |-- drivers-net-ethernet-huawei-hinic-hinic_hwdev.c:warning:the-comparison-will-always-evaluate-as-true-for-the-address-of-rt_cmd-will-never-be-NULL | |-- drivers-net-ethernet-huawei-hinic-hinic_hwif.c:warning:Function-parameter-or-member-db_base-not-described-in-hinic_init_hwif | |-- drivers-net-ethernet-huawei-hinic-hinic_hwif.c:warning:Function-parameter-or-member-db_base_phy-not-described-in-hinic_init_hwif | |-- drivers-net-ethernet-huawei-hinic-hinic_hwif.c:warning:Function-parameter-or-member-dwqe_mapping-not-described-in-hinic_init_hwif | |-- drivers-net-ethernet-huawei-hinic-hinic_hwif.c:warning:Function-parameter-or-member-intr_reg_base-not-described-in-hinic_init_hwif | |-- drivers-net-ethernet-huawei-hinic-hinic_lld.c:warning:no-previous-prototype-for-hinic_destroy_syncfw_timer | |-- drivers-net-ethernet-huawei-hinic-hinic_lld.c:warning:no-previous-prototype-for-hinic_event_process | |-- drivers-net-ethernet-huawei-hinic-hinic_lld.c:warning:no-previous-prototype-for-hinic_get_card_func_info_by_card_name | |-- drivers-net-ethernet-huawei-hinic-hinic_lld.c:warning:no-previous-prototype-for-hinic_get_ppf_hwdev_by_pdev | |-- drivers-net-ethernet-huawei-hinic-hinic_lld.c:warning:no-previous-prototype-for-hinic_init_syncfw_timer | |-- drivers-net-ethernet-huawei-hinic-hinic_lld.c:warning:no-previous-prototype-for-hinic_version_cmp | |-- drivers-net-ethernet-huawei-hinic-hinic_main.c:warning:no-previous-prototype-for-nic_event | |-- drivers-net-ethernet-huawei-hinic-hinic_mbox.c:warning:no-previous-prototype-for-check_vf_mbox_random_id | |-- drivers-net-ethernet-huawei-hinic-hinic_mbox.c:warning:no-previous-prototype-for-dump_mox_reg | |-- drivers-net-ethernet-huawei-hinic-hinic_mbox.c:warning:no-previous-prototype-for-set_vf_mbox_random_id | |-- drivers-net-ethernet-huawei-hinic-hinic_mgmt.c:warning:Function-parameter-or-member-cmd-not-described-in-hinic_api_cmd_write_nack | |-- drivers-net-ethernet-huawei-hinic-hinic_mgmt.c:warning:Function-parameter-or-member-dest-not-described-in-hinic_api_cmd_write_nack | |-- drivers-net-ethernet-huawei-hinic-hinic_mgmt.c:warning:Function-parameter-or-member-hwdev-not-described-in-hinic_api_cmd_write_nack | |-- drivers-net-ethernet-huawei-hinic-hinic_mgmt.c:warning:Function-parameter-or-member-size-not-described-in-hinic_api_cmd_write_nack | |-- drivers-net-ethernet-huawei-hinic-hinic_multi_host_mgmt.c:warning:no-previous-prototype-for-__mbox_to_host | |-- drivers-net-ethernet-huawei-hinic-hinic_multi_host_mgmt.c:warning:no-previous-prototype-for-__ppf_process_mbox_msg | |-- drivers-net-ethernet-huawei-hinic-hinic_multi_host_mgmt.c:warning:no-previous-prototype-for-comm_ppf_mbox_handler | |-- drivers-net-ethernet-huawei-hinic-hinic_multi_host_mgmt.c:warning:no-previous-prototype-for-comm_ppf_to_pf_handler | |-- drivers-net-ethernet-huawei-hinic-hinic_multi_host_mgmt.c:warning:no-previous-prototype-for-hilink_ppf_mbox_handler | |-- drivers-net-ethernet-huawei-hinic-hinic_multi_host_mgmt.c:warning:no-previous-prototype-for-hinic_nic_ppf_mbox_handler | |-- drivers-net-ethernet-huawei-hinic-hinic_multi_host_mgmt.c:warning:no-previous-prototype-for-hinic_nic_ppf_to_pf_handler | |-- drivers-net-ethernet-huawei-hinic-hinic_multi_host_mgmt.c:warning:no-previous-prototype-for-hinic_register_slave_ppf | |-- drivers-net-ethernet-huawei-hinic-hinic_multi_host_mgmt.c:warning:no-previous-prototype-for-set_slave_func_nic_state | |-- drivers-net-ethernet-huawei-hinic-hinic_multi_host_mgmt.c:warning:no-previous-prototype-for-sw_func_ppf_mbox_handler | |-- drivers-net-ethernet-huawei-hinic-hinic_nic_cfg.c:warning:no-previous-prototype-for-hinic_hiovs_del_cpath_vlan | |-- drivers-net-ethernet-huawei-hinic-hinic_nic_cfg.c:warning:no-previous-prototype-for-hinic_hiovs_set_cpath_vlan | |-- drivers-net-ethernet-huawei-hinic-hinic_nic_cfg.c:warning:no-previous-prototype-for-nic_pf_mbox_handler | |-- drivers-net-ethernet-huawei-hinic-hinic_nic_io.c:warning:no-previous-prototype-for-hinic_qp_prepare_cmdq_header | |-- drivers-net-ethernet-huawei-hinic-hinic_nic_io.c:warning:no-previous-prototype-for-hinic_rq_prepare_ctxt | |-- drivers-net-ethernet-huawei-hinic-hinic_nic_io.c:warning:no-previous-prototype-for-hinic_sq_prepare_ctxt | |-- drivers-net-ethernet-huawei-hinic-hinic_nictool.c:warning:no-previous-prototype-for-get_ets_info | |-- drivers-net-ethernet-huawei-hinic-hinic_nictool.c:warning:no-previous-prototype-for-get_pfc_info | |-- drivers-net-ethernet-huawei-hinic-hinic_nictool.c:warning:no-previous-prototype-for-get_support_tc | |-- drivers-net-ethernet-huawei-hinic-hinic_nictool.c:warning:no-previous-prototype-for-get_support_up | |-- drivers-net-ethernet-huawei-hinic-hinic_nictool.c:warning:no-previous-prototype-for-set_ets | |-- drivers-net-ethernet-huawei-hinic-hinic_nictool.c:warning:no-previous-prototype-for-set_pfc_control | |-- drivers-net-ethernet-huawei-hinic-hinic_nictool.c:warning:no-previous-prototype-for-set_pfc_priority | |-- drivers-net-ethernet-huawei-hinic-hinic_rx.c:warning:no-previous-prototype-for-hinic_rx_free_buffers | |-- drivers-net-ethernet-huawei-hinic-hinic_rx.c:warning:no-previous-prototype-for-recv_one_pkt | |-- drivers-net-ethernet-huawei-hinic-hinic_rx.c:warning:no-previous-prototype-for-rx_pass_super_cqe | |-- drivers-net-ethernet-huawei-hinic-hinic_sml_counter.c:warning:no-previous-prototype-for-hinic_sm_ctr_rd32 | |-- drivers-net-ethernet-huawei-hinic-hinic_sml_counter.c:warning:no-previous-prototype-for-hinic_sm_ctr_rd32_clear | |-- drivers-net-ethernet-huawei-hinic-hinic_sml_counter.c:warning:no-previous-prototype-for-hinic_sm_ctr_rd64 | |-- drivers-net-ethernet-huawei-hinic-hinic_sml_counter.c:warning:no-previous-prototype-for-hinic_sm_ctr_rd64_pair | |-- drivers-net-ethernet-huawei-hinic-hinic_sml_counter.c:warning:no-previous-prototype-for-hinic_sm_ctr_wr32 | |-- drivers-net-ethernet-huawei-hinic-hinic_sml_counter.c:warning:no-previous-prototype-for-hinic_sm_ctr_wr64 | |-- drivers-net-ethernet-huawei-hinic-hinic_sml_counter.c:warning:no-previous-prototype-for-hinic_sm_ctr_wr64_pair | |-- drivers-net-ethernet-huawei-hinic-hinic_tx.c:warning:no-previous-prototype-for-hinic_setup_tx_wqe | |-- drivers-net-ethernet-huawei-hinic-hinic_tx.c:warning:no-previous-prototype-for-hinic_stop_sq | |-- drivers-net-ethernet-mellanox-mlx5-core-en_tc.c:warning:unused-variable-ret | |-- drivers-net-ethernet-mellanox-mlx5-core-ipoib-ipoib.c:warning:no-previous-prototype-for-mlx5i_grp_sw_update_stats | |-- drivers-net-ethernet-stmicro-stmmac-dwmac-phytium.c:warning:no-previous-prototype-for-phytium_dwmac_remove | |-- drivers-net-ethernet-stmicro-stmmac-dwmac-phytium.c:warning:ordered-comparison-of-pointer-with-integer-zero | |-- drivers-net-ethernet-stmicro-stmmac-dwmac-phytium.c:warning:returning-void-from-a-function-with-return-type-int-makes-integer-from-pointer-without-a-cast | |-- drivers-pci-controller-pcie-altera.c:warning:data-may-be-used-uninitialized | |-- drivers-pci-pcie-aer.c:warning:array-subscript-is-outside-array-bounds-of-u32-aka-unsigned-int | |-- drivers-rtc-rtc-phytium.c:warning:variable-counter-set-but-not-used | |-- drivers-rtc-rtc-phytium.c:warning:variable-rtc_time-set-but-not-used | |-- drivers-rtc-rtc-phytium.c:warning:variable-tmp-set-but-not-used | |-- drivers-scsi-hisi_raid-hiraid_main.c:warning:d-directive-writing-between-and-bytes-into-a-region-of-size | |-- drivers-scsi-hisi_sas-hisi_sas_main.c:warning:no-previous-prototype-for-hisi_sas_debugfs_bist_code_mode_write | |-- drivers-scsi-hisi_sas-hisi_sas_main.c:warning:no-previous-prototype-for-hisi_sas_debugfs_bist_enable_write | |-- drivers-scsi-hisi_sas-hisi_sas_main.c:warning:no-previous-prototype-for-hisi_sas_debugfs_bist_linkrate_write | |-- drivers-scsi-hisi_sas-hisi_sas_main.c:warning:no-previous-prototype-for-hisi_sas_debugfs_bist_mode_write | |-- drivers-scsi-hisi_sas-hisi_sas_main.c:warning:no-previous-prototype-for-hisi_sas_debugfs_bist_phy_write | |-- drivers-scsi-hisi_sas-hisi_sas_main.c:warning:no-previous-prototype-for-hisi_sas_debugfs_to_reg_name | |-- drivers-scsi-hisi_sas-hisi_sas_v3_hw.c:warning:no-previous-prototype-for-get_managed_irq_aff_v3_hw | |-- drivers-scsi-sssraid-sssraid_fw.c:warning:d-directive-writing-between-and-bytes-into-a-region-of-size | |-- drivers-spi-spi-phytium.c:warning:snprintf-output-may-be-truncated-before-the-last-format-character | |-- drivers-tee-optee-core.c:warning:returning-void-from-a-function-with-return-type-int-makes-integer-from-pointer-without-a-cast | |-- include-scsi-scsi_cmnd.h:warning:scsi_cmnd-may-be-used-uninitialized | |-- net-qrtr-qrtr.c:warning:ignoring-return-value-of-skb_put_padto-declared-with-attribute-warn_unused_result | |-- sound-pci-hda-hda_phytium.c:warning:variable-azx_dev-set-but-not-used | |-- sound-pci-hda-hda_phytium.c:warning:variable-hda-set-but-not-used | `-- sound-pci-hda-hda_phytium.c:warning:variable-index-set-but-not-used |-- arm64-allnoconfig | |-- arch-arm64-include-asm-atomic_ll_sc.h:warning:array-subscript-long-unsigned-int-is-partly-outside-array-bounds-of-enum-mitigation_state | |-- arch-arm64-include-asm-syscall.h:warning:memset-offset-is-out-of-the-bounds | |-- arch-arm64-kernel-vdso-gettimeofday.c:warning:no-previous-prototype-for-__kernel_clock_getres | |-- arch-arm64-kernel-vdso-gettimeofday.c:warning:no-previous-prototype-for-__kernel_clock_gettime | |-- arch-arm64-kernel-vdso-gettimeofday.c:warning:no-previous-prototype-for-__kernel_gettimeofday | |-- kernel-sched-core.c:error:implicit-declaration-of-function-init_auto_affinity | |-- kernel-sched-core.c:error:implicit-declaration-of-function-tg_update_affinity_domains | |-- kernel-sched-core.c:error:root_task_group-undeclared-(first-use-in-this-function) | `-- mm-memory.c:error:implicit-declaration-of-function-hugetlb_insert_hugepage_pte_by_pa |-- arm64-defconfig | |-- arch-arm64-include-asm-syscall.h:warning:memset-offset-is-out-of-the-bounds | |-- arch-arm64-kernel-vdso-gettimeofday.c:warning:no-previous-prototype-for-__kernel_clock_getres | |-- arch-arm64-kernel-vdso-gettimeofday.c:warning:no-previous-prototype-for-__kernel_clock_gettime | |-- arch-arm64-kernel-vdso-gettimeofday.c:warning:no-previous-prototype-for-__kernel_gettimeofday | |-- drivers-char-svm.c:warning:no-previous-prototype-for-svm_get_pasid | |-- drivers-gpu-drm-hisilicon-hibmc-hibmc_drm_drv.c:warning:array-subscript-is-outside-array-bounds-of-struct-aperture | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-clk_divisor_fast_plus_mode-not-described-in-tegra_i2c_hw_feature | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-clk_divisor_non_hs_mode-not-described-in-tegra_i2c_dev | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-has_mst_fifo-not-described-in-tegra_i2c_hw_feature | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-has_multi_master_mode-not-described-in-tegra_i2c_hw_feature | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-has_slcg_override_reg-not-described-in-tegra_i2c_hw_feature | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-irq_disabled-not-described-in-tegra_i2c_dev | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-is_multimaster_mode-not-described-in-tegra_i2c_dev | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-rst-not-described-in-tegra_i2c_dev | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-xfer_lock-not-described-in-tegra_i2c_dev | |-- drivers-iommu-arm-smmu-v3-context.c:warning:no-previous-prototype-for-arm_smmu_get_cd_mpam | |-- drivers-iommu-arm-smmu-v3-context.c:warning:no-previous-prototype-for-arm_smmu_set_cd_mpam | |-- drivers-iommu-arm-smmu-v3.c:warning:Function-parameter-or-member-dev-not-described-in-arm_smmu_get_dev_user_mpam_en | |-- drivers-iommu-arm-smmu-v3.c:warning:Function-parameter-or-member-dev-not-described-in-arm_smmu_set_dev_mpam | |-- drivers-iommu-arm-smmu-v3.c:warning:Function-parameter-or-member-dev-not-described-in-arm_smmu_set_dev_user_mpam_en | |-- drivers-iommu-arm-smmu-v3.c:warning:Function-parameter-or-member-partid-not-described-in-arm_smmu_get_dev_mpam | |-- drivers-iommu-arm-smmu-v3.c:warning:Function-parameter-or-member-partid-not-described-in-arm_smmu_set_dev_mpam | |-- drivers-iommu-arm-smmu-v3.c:warning:Function-parameter-or-member-pmg-not-described-in-arm_smmu_get_dev_mpam | |-- drivers-iommu-arm-smmu-v3.c:warning:Function-parameter-or-member-pmg-not-described-in-arm_smmu_set_dev_mpam | |-- drivers-iommu-arm-smmu-v3.c:warning:Function-parameter-or-member-s1mpam-not-described-in-arm_smmu_get_dev_mpam | |-- drivers-iommu-arm-smmu-v3.c:warning:Function-parameter-or-member-s1mpam-not-described-in-arm_smmu_set_dev_mpam | |-- drivers-iommu-arm-smmu-v3.c:warning:Function-parameter-or-member-ssid-not-described-in-arm_smmu_get_dev_mpam | |-- drivers-iommu-arm-smmu-v3.c:warning:Function-parameter-or-member-ssid-not-described-in-arm_smmu_set_dev_mpam | |-- drivers-iommu-arm-smmu-v3.c:warning:Function-parameter-or-member-user_mpam_en-not-described-in-arm_smmu_get_dev_user_mpam_en | |-- drivers-iommu-arm-smmu-v3.c:warning:Function-parameter-or-member-user_mpam_en-not-described-in-arm_smmu_set_dev_user_mpam_en | |-- drivers-iommu-arm-smmu-v3.c:warning:no-previous-prototype-for-arm_smmu_get_dev_mpam | |-- drivers-iommu-arm-smmu-v3.c:warning:no-previous-prototype-for-arm_smmu_get_dev_user_mpam_en | |-- drivers-iommu-arm-smmu-v3.c:warning:no-previous-prototype-for-arm_smmu_set_dev_mpam | |-- drivers-iommu-arm-smmu-v3.c:warning:no-previous-prototype-for-arm_smmu_set_dev_user_mpam_en | |-- drivers-scsi-hisi_sas-hisi_sas_main.c:warning:no-previous-prototype-for-hisi_sas_debugfs_bist_code_mode_write | |-- drivers-scsi-hisi_sas-hisi_sas_main.c:warning:no-previous-prototype-for-hisi_sas_debugfs_bist_enable_write | |-- drivers-scsi-hisi_sas-hisi_sas_main.c:warning:no-previous-prototype-for-hisi_sas_debugfs_bist_linkrate_write | |-- drivers-scsi-hisi_sas-hisi_sas_main.c:warning:no-previous-prototype-for-hisi_sas_debugfs_bist_mode_write | |-- drivers-scsi-hisi_sas-hisi_sas_main.c:warning:no-previous-prototype-for-hisi_sas_debugfs_bist_phy_write | |-- drivers-scsi-hisi_sas-hisi_sas_main.c:warning:no-previous-prototype-for-hisi_sas_debugfs_to_reg_name | |-- drivers-scsi-hisi_sas-hisi_sas_v3_hw.c:warning:no-previous-prototype-for-get_managed_irq_aff_v3_hw | |-- drivers-tee-optee-core.c:warning:returning-void-from-a-function-with-return-type-int-makes-integer-from-pointer-without-a-cast | `-- include-scsi-scsi_cmnd.h:warning:scsi_cmnd-may-be-used-uninitialized |-- arm64-randconfig-001-20240112 | |-- drivers-char-svm.c:warning:no-previous-prototype-for-svm_get_pasid | |-- drivers-char-svm.c:warning:svm_acpi_match-defined-but-not-used | |-- drivers-gpu-drm-hisilicon-hibmc-hibmc_drm_drv.c:warning:array-subscript-is-outside-array-bounds-of-struct-aperture | `-- drivers-pci-pcie-aer.c:warning:array-subscript-is-outside-array-bounds-of-u32-aka-unsigned-int |-- arm64-randconfig-001-20240123 | |-- arch-arm64-kernel-vdso-gettimeofday.c:warning:no-previous-prototype-for-__kernel_clock_getres | |-- arch-arm64-kernel-vdso-gettimeofday.c:warning:no-previous-prototype-for-__kernel_clock_gettime | |-- arch-arm64-kernel-vdso-gettimeofday.c:warning:no-previous-prototype-for-__kernel_gettimeofday | |-- drivers-clocksource-arm_arch_timer.c:error:hisi_161010101_read_cntvct_el0-undeclared-(first-use-in-this-function) | |-- drivers-gpio-gpio-dwapb.c:warning:enable_ascend_gpio_dwapb_setup-defined-but-not-used | |-- drivers-misc-uacce-uacce.c:error:implicit-declaration-of-function-module_refcount | `-- kernel-time-tick-broadcast.c:warning:tick_broadcast_oneshot_offline-declared-static-but-never-defined |-- arm64-randconfig-002-20240123 | |-- arch-arm64-kernel-vdso-gettimeofday.c:warning:no-previous-prototype-for-__kernel_clock_getres | |-- arch-arm64-kernel-vdso-gettimeofday.c:warning:no-previous-prototype-for-__kernel_clock_gettime | |-- arch-arm64-kernel-vdso-gettimeofday.c:warning:no-previous-prototype-for-__kernel_gettimeofday | |-- drivers-md-bcache-acache.c:warning:array-subscript-unknown-is-outside-array-bounds-of-struct-acache_info | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-acache_open | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-acache_prefetch_init | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-acache_release | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-get_bio_by_item | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-get_cached_device_by_dev | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-init_acache_circ | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-read_circ_slice | |-- drivers-pci-controller-pcie-altera.c:warning:data-may-be-used-uninitialized | |-- drivers-staging-gmjstcm-tcm_tis_spi.c:warning:inten-may-be-used-uninitialized | |-- drivers-staging-gmjstcm-tcm_tis_spi.c:warning:tcm_tis_spi_acpi_match-defined-but-not-used | `-- drivers-staging-gmjstcm-tcm_tis_spi.c:warning:vendor-may-be-used-uninitialized |-- arm64-randconfig-003-20240123 | |-- arch-arm64-include-asm-syscall.h:warning:memset-offset-is-out-of-the-bounds | |-- arch-arm64-kernel-vdso-gettimeofday.c:warning:no-previous-prototype-for-__kernel_clock_getres | |-- arch-arm64-kernel-vdso-gettimeofday.c:warning:no-previous-prototype-for-__kernel_clock_gettime | |-- arch-arm64-kernel-vdso-gettimeofday.c:warning:no-previous-prototype-for-__kernel_gettimeofday | |-- drivers-gpio-gpio-dwapb.c:warning:enable_ascend_gpio_dwapb_setup-defined-but-not-used | |-- drivers-md-bcache-acache.c:warning:array-subscript-unknown-is-outside-array-bounds-of-struct-acache_info | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-acache_open | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-acache_prefetch_init | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-acache_release | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-get_bio_by_item | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-get_cached_device_by_dev | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-init_acache_circ | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-read_circ_slice | `-- mm-memory.c:error:implicit-declaration-of-function-hugetlb_insert_hugepage_pte_by_pa |-- arm64-randconfig-004-20240123 | |-- arch-arm64-kernel-vdso-gettimeofday.c:warning:no-previous-prototype-for-__kernel_clock_getres | |-- arch-arm64-kernel-vdso-gettimeofday.c:warning:no-previous-prototype-for-__kernel_clock_gettime | |-- arch-arm64-kernel-vdso-gettimeofday.c:warning:no-previous-prototype-for-__kernel_gettimeofday | |-- drivers-gpu-drm-hisilicon-hibmc-hibmc_drm_drv.c:warning:array-subscript-is-outside-array-bounds-of-struct-aperture | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-clk_divisor_fast_plus_mode-not-described-in-tegra_i2c_hw_feature | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-clk_divisor_non_hs_mode-not-described-in-tegra_i2c_dev | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-has_mst_fifo-not-described-in-tegra_i2c_hw_feature | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-has_multi_master_mode-not-described-in-tegra_i2c_hw_feature | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-has_slcg_override_reg-not-described-in-tegra_i2c_hw_feature | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-irq_disabled-not-described-in-tegra_i2c_dev | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-is_multimaster_mode-not-described-in-tegra_i2c_dev | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-rst-not-described-in-tegra_i2c_dev | |-- drivers-i2c-busses-i2c-tegra.c:warning:Function-parameter-or-member-xfer_lock-not-described-in-tegra_i2c_dev | |-- drivers-i2c-busses-i2c-zhaoxin.c:warning:zxi2c_resume-defined-but-not-used | |-- drivers-i2c-busses-i2c-zhaoxin.c:warning:zxi2c_suspend-defined-but-not-used | |-- drivers-md-bcache-acache.c:warning:array-subscript-unknown-is-outside-array-bounds-of-struct-acache_info | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-acache_open | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-acache_prefetch_init | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-acache_release | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-get_bio_by_item | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-get_cached_device_by_dev | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-init_acache_circ | |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-read_circ_slice | |-- drivers-misc-uacce-uacce.c:error:implicit-declaration-of-function-module_refcount | |-- drivers-staging-gmjstcm-tcm_tis_spi.c:warning:inten-may-be-used-uninitialized | |-- drivers-staging-gmjstcm-tcm_tis_spi.c:warning:vendor-may-be-used-uninitialized | |-- drivers-tee-optee-core.c:warning:returning-void-from-a-function-with-return-type-int-makes-integer-from-pointer-without-a-cast | `-- mm-memory.c:error:implicit-declaration-of-function-hugetlb_insert_hugepage_pte_by_pa |-- x86_64-allnoconfig | |-- arch-arm64-kernel-sys_ilp32.c:asm-unistd.h-is-included-more-than-once. | |-- arch-x86-include-asm-msr.h:warning:mcu_ctrl-may-be-used-uninitialized | |-- arch-x86-kernel-cpu-tsx.o:warning:objtool:missing-symbol-for-section-.init.text | |-- arch-x86-kernel-unwind_orc.c:warning:orc_sort_cmp-defined-but-not-used | |-- arch-x86-kernel-unwind_orc.c:warning:orc_sort_swap-defined-but-not-used | |-- arch-x86-mm-maccess.o:warning:objtool:missing-symbol-for-section-.text | |-- drivers-infiniband-hw-hns-hns_roce_main.c:linux-sched.h-is-included-more-than-once. | |-- drivers-net-ethernet-hisilicon-hns3-kcompat.c::need-linux-version.h | |-- drivers-net-ethernet-huawei-bma-edma_drv-bma_include.h:linux-version.h-is-included-more-than-once. | |-- drivers-scsi-huawei-hifc-hifc_cfg.c:hifc_hw.h-is-included-more-than-once. | |-- drivers-scsi-huawei-hifc-hifc_dbgtool_knl.c:linux-fs.h-is-included-more-than-once. | |-- drivers-scsi-huawei-hifc-hifc_hwdev.c:hifc_hwif.h-is-included-more-than-once. | |-- drivers-scsi-huawei-hifc-unf_npiv.c:unf_rport.h-is-included-more-than-once. | |-- drivers-scsi-huawei-hifc-unf_portman.c:unf_rport.h-is-included-more-than-once. | |-- drivers-scsi-huawei-hifc-unf_service.c:unf_exchg.h-is-included-more-than-once. | |-- fs-proc-etmem_scan.c:linux-uaccess.h-is-included-more-than-once. | |-- kernel-ktask.o:warning:objtool:missing-symbol-for-section-.text | |-- kernel-sysctl.c:..-lib-kstrtox.h-is-included-more-than-once. | |-- mm-ioremap.o:warning:objtool:missing-symbol-for-section-.text | `-- mm-memory.c:error:implicit-declaration-of-function-hugetlb_insert_hugepage_pte_by_pa |-- x86_64-defconfig | |-- arch-x86-mm-maccess.o:warning:objtool:missing-symbol-for-section-.text | |-- include-asm-generic-bug.h:warning:mcu_ctrl-may-be-used-uninitialized-in-this-function | |-- kernel-ktask.o:warning:objtool:missing-symbol-for-section-.text | `-- mm-ioremap.o:warning:objtool:missing-symbol-for-section-.text `-- x86_64-randconfig-161-20240123 |-- drivers-gpio-gpio-dwapb.c:warning:enable_ascend_gpio_dwapb_setup-defined-but-not-used |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-acache_open |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-acache_prefetch_init |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-acache_release |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-get_bio_by_item |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-get_cached_device_by_dev |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-init_acache_circ |-- drivers-md-bcache-acache.c:warning:no-previous-prototype-for-read_circ_slice |-- kernel-sched-core.c:error:implicit-declaration-of-function-init_auto_affinity |-- kernel-sched-core.c:error:implicit-declaration-of-function-tg_update_affinity_domains |-- kernel-sched-core.c:error:root_task_group-undeclared-(first-use-in-this-function) `-- mm-memory.c:error:implicit-declaration-of-function-hugetlb_insert_hugepage_pte_by_pa clang_recent_errors |-- x86_64-allyesconfig | |-- drivers-net-can-phytium-phytium_can.c:warning:Function-parameter-or-member-dev-not-described-in-phytium_can_start_xmit | |-- drivers-net-can-phytium-phytium_can.c:warning:Function-parameter-or-member-skb-not-described-in-phytium_can_start_xmit | |-- drivers-net-ethernet-3snic-sssnic-hw-.tmp_sss_hwdev_link.o:warning:objtool:missing-symbol-for-section-.text | |-- drivers-net-ethernet-hisilicon-hns3-hns3_enet.c:warning:unused-variable-handle | |-- drivers-net-ethernet-huawei-hinic-hinic_api_cmd.c:warning:Excess-function-parameter-chain-description-in-api_cmd_create_chain | |-- drivers-net-ethernet-huawei-hinic-hinic_api_cmd.c:warning:Function-parameter-or-member-cmd_chain-not-described-in-api_cmd_create_chain | |-- drivers-net-ethernet-huawei-hinic-hinic_dbgtool_knl.c:warning:Function-parameter-or-member-arg-not-described-in-dbgtool_knl_unlocked_ioctl | |-- drivers-net-ethernet-huawei-hinic-hinic_dbgtool_knl.c:warning:Function-parameter-or-member-in_size-not-described-in-ffm_intr_msg_record | |-- drivers-net-ethernet-huawei-hinic-hinic_dbgtool_knl.c:warning:Function-parameter-or-member-out_size-not-described-in-ffm_intr_msg_record | |-- drivers-net-ethernet-huawei-hinic-hinic_eqs.c:warning:Excess-function-parameter-hw_cb-description-in-hinic_aeq_register_hw_cb | |-- drivers-net-ethernet-huawei-hinic-hinic_eqs.c:warning:Excess-function-parameter-sw_cb-description-in-hinic_aeq_register_swe_cb | |-- drivers-net-ethernet-huawei-hinic-hinic_eqs.c:warning:Function-parameter-or-member-aeq_swe_cb-not-described-in-hinic_aeq_register_swe_cb | |-- drivers-net-ethernet-huawei-hinic-hinic_eqs.c:warning:Function-parameter-or-member-hwe_cb-not-described-in-hinic_aeq_register_hw_cb | |-- drivers-net-ethernet-huawei-hinic-hinic_eqs.c:warning:variable-lev-set-but-not-used | |-- drivers-net-ethernet-huawei-hinic-hinic_hwif.c:warning:Function-parameter-or-member-db_base-not-described-in-hinic_init_hwif | |-- drivers-net-ethernet-huawei-hinic-hinic_hwif.c:warning:Function-parameter-or-member-db_base_phy-not-described-in-hinic_init_hwif | |-- drivers-net-ethernet-huawei-hinic-hinic_hwif.c:warning:Function-parameter-or-member-dwqe_mapping-not-described-in-hinic_init_hwif | |-- drivers-net-ethernet-huawei-hinic-hinic_hwif.c:warning:Function-parameter-or-member-intr_reg_base-not-described-in-hinic_init_hwif | |-- drivers-net-ethernet-huawei-hinic-hinic_mgmt.c:warning:Function-parameter-or-member-cmd-not-described-in-hinic_api_cmd_write_nack | |-- drivers-net-ethernet-huawei-hinic-hinic_mgmt.c:warning:Function-parameter-or-member-dest-not-described-in-hinic_api_cmd_write_nack | |-- drivers-net-ethernet-huawei-hinic-hinic_mgmt.c:warning:Function-parameter-or-member-hwdev-not-described-in-hinic_api_cmd_write_nack | |-- drivers-net-ethernet-huawei-hinic-hinic_mgmt.c:warning:Function-parameter-or-member-size-not-described-in-hinic_api_cmd_write_nack | |-- drivers-net-ethernet-mellanox-mlx5-core-en_tc.c:warning:unused-variable-ret | |-- drivers-net-ethernet-stmicro-stmmac-dwmac-phytium.c:error:incompatible-pointer-to-integer-conversion-returning-void-from-a-function-with-result-type-int | |-- drivers-net-ethernet-stmicro-stmmac-dwmac-phytium.c:warning:no-previous-prototype-for-function-phytium_dwmac_remove | |-- net-netfilter-nf_nat_proto.c:warning:no-previous-prototype-for-function-nf_nat_csum_recalc | |-- sound-pci-hda-hda_phytium.c:warning:variable-azx_dev-set-but-not-used | |-- sound-pci-hda-hda_phytium.c:warning:variable-hda-set-but-not-used | `-- sound-pci-hda-hda_phytium.c:warning:variable-index-set-but-not-used `-- x86_64-rhel-8.3-rust `-- net-netfilter-nf_nat_proto.c:warning:no-previous-prototype-for-function-nf_nat_csum_recalc elapsed time: 1456m configs tested: 46 configs skipped: 140 tested configs: alpha allnoconfig gcc alpha defconfig gcc arc allnoconfig gcc arc defconfig gcc arm allnoconfig gcc arm defconfig gcc arm64 allmodconfig gcc arm64 allnoconfig gcc arm64 defconfig gcc arm64 randconfig-001-20240123 gcc arm64 randconfig-002-20240123 gcc arm64 randconfig-003-20240123 gcc arm64 randconfig-004-20240123 gcc csky allnoconfig gcc csky defconfig gcc loongarch allnoconfig gcc loongarch defconfig gcc m68k allnoconfig gcc m68k defconfig gcc microblaze allnoconfig gcc microblaze defconfig gcc mips allnoconfig gcc nios2 allnoconfig gcc nios2 defconfig gcc openrisc allnoconfig gcc openrisc defconfig gcc parisc allnoconfig gcc parisc defconfig gcc parisc64 defconfig gcc powerpc allnoconfig gcc riscv allnoconfig gcc riscv defconfig gcc s390 allnoconfig gcc s390 defconfig gcc sh allnoconfig gcc sh defconfig gcc sparc64 defconfig gcc um allnoconfig gcc um defconfig gcc um i386_defconfig gcc um x86_64_defconfig gcc x86_64 allnoconfig gcc x86_64 allyesconfig clang x86_64 defconfig gcc x86_64 rhel-8.3-rust clang xtensa allnoconfig gcc -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-6.6] blk-mq: avoid housekeeping CPUs scheduling a worker on a non-housekeeping CPU
by Xiongfeng Wang 23 Jan '24

23 Jan '24

hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I8YB4M CVE: N/A --------------------------------- When NOHZ_FULL is enabled, such as in HPC situation, CPUs are divided into housekeeping CPUs and non-housekeeping CPUs. Non-housekeeping CPUs are NOHZ_FULL CPUs and are often monopolized by the userspace process, such HPC application process. Any sort of interruption is not expected. blk_mq_hctx_next_cpu() selects each cpu in 'hctx->cpumask' alternately to schedule the work thread blk_mq_run_work_fn(). When 'hctx->cpumask' contains housekeeping CPU and non-housekeeping CPU at the same time, a housekeeping CPU, which want to request a IO, may schedule a worker on a non-housekeeping CPU. This may affect the performance of the userspace application running on non-housekeeping CPUs. So let's just schedule the worker thread on the current CPU when the current CPU is housekeeping CPU. Signed-off-by: Xiongfeng Wang <wangxiongfeng2(a)huawei.com> Conflicts: block/blk-mq.c include/linux/sched/isolation.h Signed-off-by: Xiongfeng Wang <wangxiongfeng2(a)huawei.com> --- block/blk-mq.c | 11 ++++++++++- include/linux/sched/isolation.h | 3 +++ kernel/sched/isolation.c | 8 ++++++++ 3 files changed, 21 insertions(+), 1 deletion(-) diff --git a/block/blk-mq.c b/block/blk-mq.c index 6ab7f360ff2a..52cfbeb75355 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -24,6 +24,7 @@ #include <linux/sched/sysctl.h> #include <linux/sched/topology.h> #include <linux/sched/signal.h> +#include <linux/sched/isolation.h> #include <linux/delay.h> #include <linux/crash_dump.h> #include <linux/prefetch.h> @@ -2214,9 +2215,17 @@ static int blk_mq_hctx_next_cpu(struct blk_mq_hw_ctx *hctx) */ void blk_mq_delay_run_hw_queue(struct blk_mq_hw_ctx *hctx, unsigned long msecs) { + int work_cpu; + if (unlikely(blk_mq_hctx_stopped(hctx))) return; - kblockd_mod_delayed_work_on(blk_mq_hctx_next_cpu(hctx), &hctx->run_work, + + if (enhanced_isolcpus && tick_nohz_full_enabled() && + housekeeping_cpu(raw_smp_processor_id(), HK_TYPE_WQ)) + work_cpu = raw_smp_processor_id(); + else + work_cpu = blk_mq_hctx_next_cpu(hctx); + kblockd_mod_delayed_work_on(work_cpu, &hctx->run_work, msecs_to_jiffies(msecs)); } EXPORT_SYMBOL(blk_mq_delay_run_hw_queue); diff --git a/include/linux/sched/isolation.h b/include/linux/sched/isolation.h index fe1a46f30d24..3894e74e8dc5 100644 --- a/include/linux/sched/isolation.h +++ b/include/linux/sched/isolation.h @@ -19,6 +19,7 @@ enum hk_type { }; #ifdef CONFIG_CPU_ISOLATION +extern bool enhanced_isolcpus; DECLARE_STATIC_KEY_FALSE(housekeeping_overridden); extern int housekeeping_any_cpu(enum hk_type type); extern const struct cpumask *housekeeping_cpumask(enum hk_type type); @@ -29,6 +30,8 @@ extern void __init housekeeping_init(void); #else +#define enhanced_isolcpus 0 + static inline int housekeeping_any_cpu(enum hk_type type) { return smp_processor_id(); diff --git a/kernel/sched/isolation.c b/kernel/sched/isolation.c index 373d42c707bc..3884c245faf5 100644 --- a/kernel/sched/isolation.c +++ b/kernel/sched/isolation.c @@ -239,3 +239,11 @@ static int __init housekeeping_isolcpus_setup(char *str) return housekeeping_setup(str, flags); } __setup("isolcpus=", housekeeping_isolcpus_setup); + +bool enhanced_isolcpus; +static int __init enhanced_isolcpus_setup(char *str) +{ + enhanced_isolcpus = true; + return 0; +} +__setup("enhanced_isolcpus", enhanced_isolcpus_setup); -- 2.20.1

2 1

[PATCH OLK-6.6 0/1] misc for controlling fd
by Chen Ridong 23 Jan '24

23 Jan '24

Chen Ridong (1): cgrou/misc: misc for controlling fd fs/Makefile | 1 - fs/file.c | 16 +-- include/linux/fd-misc.h | 18 ++++ include/linux/fdtable.h | 1 + include/linux/files-cgroup.h | 33 +++++++ include/linux/filescontrol.h | 99 ++++++++++++++++--- include/linux/misc_cgroup.h | 2 + kernel/cgroup/Makefile | 2 + .../cgroup/files-cgroup.c | 18 +--- kernel/cgroup/misc-fd.c | 91 +++++++++++++++++ kernel/cgroup/misc.c | 2 + 11 files changed, 245 insertions(+), 38 deletions(-) create mode 100644 include/linux/fd-misc.h create mode 100644 include/linux/files-cgroup.h rename fs/filescontrol.c => kernel/cgroup/files-cgroup.c (95%) create mode 100644 kernel/cgroup/misc-fd.c -- 2.34.1

2 2

[PATCH OLK-5.10] block: remove precise_iostat
by Li Nan 23 Jan '24

23 Jan '24

hulk inclusion category: bugfix bugzilla: 189480, https://gitee.com/openeuler/kernel/issues/I8Y90H -------------------------------- Previously, we believed it would be too costly to sum all the percpu variables 'in_flight' every jiffy if we want to count io accurately. So we added switch 'precise_iostat' and set it to false be default. However, the overhead of precise_iostat is 1. inc and dev in_flight when submitting io and done io 2. read in_flight up to HZ times per second It is much lower than our previous evaluation and can be ignored. Now, turn on the switch by default. And it will be removed in the feature. Signed-off-by: Li Nan <linan122(a)huawei.com> --- block/blk-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/blk-core.c b/block/blk-core.c index 3564de78f102..f91f8e8be482 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -62,7 +62,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(block_unplug); DEFINE_IDA(blk_queue_ida); -bool precise_iostat; +bool precise_iostat = true; static int __init precise_iostat_setup(char *str) { -- 2.39.2

2 1

[PATCH OLK-5.10] block: remove precise_iostat
by Li Nan 23 Jan '24

23 Jan '24

hulk inclusion category: bugfix bugzilla: 189480, https://gitee.com/openeuler/kernel/issues/I8Y90L -------------------------------- Previously, we believed it would be too costly to sum all the percpu variables 'in_flight' every jiffy if we want to count io accurately. So we added switch 'precise_iostat' and set it to false be default. However, the overhead of precise_iostat is 1. inc and dev in_flight when submitting io and done io 2. read in_flight up to HZ times per second It is much lower than our previous evaluation and can be ignored. Now, turn on the switch by default. And it will be removed in the feature. Signed-off-by: Li Nan <linan122(a)huawei.com> --- block/blk-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/blk-core.c b/block/blk-core.c index 3564de78f102..f91f8e8be482 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -62,7 +62,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(block_unplug); DEFINE_IDA(blk_queue_ida); -bool precise_iostat; +bool precise_iostat = true; static int __init precise_iostat_setup(char *str) { -- 2.39.2

2 1

[PATCH OLK-6.6 0/1] arm64: Add CONFIG_IPI_AS_NMI to IPI as NMI feature
by Liao Chen 23 Jan '24

23 Jan '24

This patch adds CONFIG_IPI_AS_NMI to control the availability of pseudo NMIs, which follows upstream commit 41ddf73f9f7e (arm64: Add framework to turn IPI as NMI). CONFIG_IPI_AS_NMI depends on: ARM64_PSEUDO_NMI=y Liao Chen (1): arm64: Add CONFIG_IPI_AS_NMI to IPI as NMI feature arch/arm64/Kconfig | 12 +++++++++++- arch/arm64/include/asm/irq.h | 2 +- arch/arm64/kernel/Makefile | 3 ++- arch/arm64/kernel/kgdb.c | 2 ++ arch/arm64/kernel/smp.c | 6 ++++++ include/linux/kgdb.h | 2 ++ kernel/debug/debug_core.c | 6 ++++++ 7 files changed, 30 insertions(+), 3 deletions(-) -- 2.34.1

2 2

[PATCH OLK-6.6 v2] tcp: fix compilation issue when CONFIG_SYSCTL is disabled
by Zhengchao Shao 23 Jan '24

23 Jan '24

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8Y7PX CVE: NA -------------------------------- The following error is reported when the kernel is compiled with CONFIG_SYSCTL disabled: aarch64-linux-ld: net/ipv4/inet_hashtables.o: in function `__inet_hash_connect': inet_hashtables.c:(.text+0x3564): undefined reference to `sysctl_local_port_allocation' aarch64-linux-ld: net/ipv4/inet_hashtables.o: relocation R_AARCH64_ADR_PREL_PG_HI21 against symbol `sysctl_local_port_allocation' which may bind externally can not be used when making a shared object; recompile with -fPIC >> inet_hashtables.c:(.text+0x3564): dangerous relocation: unsupported relocation aarch64-linux-ld: inet_hashtables.c:(.text+0x3568): undefined reference to `sysctl_local_port_allocation' aarch64-linux-ld: inet_hashtables.c:(.text+0x3580): undefined reference to `sysctl_local_port_allocation' When CONFIG_SYSCTL is disabled, sysctl_local_port_allocation is undefined. Fixes: 208a72041292 ("tcp/dccp: Add another way to allocate local ports in connect()") Reported-by: kernel test robot <lkp(a)intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202401180939.2N529UUe-lkp@intel.com/ Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- v2: move sysctl_local_port_allocation to inet_hashtables.c --- net/ipv4/inet_hashtables.c | 2 ++ net/ipv4/sysctl_net_ipv4.c | 1 - 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c index a24dcf39e9ae..6fb12a4d86af 100644 --- a/net/ipv4/inet_hashtables.c +++ b/net/ipv4/inet_hashtables.c @@ -28,6 +28,8 @@ #include <net/tcp.h> #include <net/sock_reuseport.h> +int sysctl_local_port_allocation = 0; + u32 inet_ehashfn(const struct net *net, const __be32 laddr, const __u16 lport, const __be32 faddr, const __be16 fport) diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c index f212133b05e9..64b3bfcbfa25 100644 --- a/net/ipv4/sysctl_net_ipv4.c +++ b/net/ipv4/sysctl_net_ipv4.c @@ -39,7 +39,6 @@ static unsigned long ip_ping_group_range_min[] = { 0, 0 }; static unsigned long ip_ping_group_range_max[] = { GID_T_MAX, GID_T_MAX }; static u32 u32_max_div_HZ = UINT_MAX / HZ; static int one_day_secs = 24 * 3600; -int sysctl_local_port_allocation; static u32 fib_multipath_hash_fields_all_mask __maybe_unused = FIB_MULTIPATH_HASH_FIELD_ALL_MASK; static unsigned int tcp_child_ehash_entries_max = 16 * 1024 * 1024; -- 2.34.1

2 1

[PATCH OLK-6.6] tcp: fix compilation issue when CONFIG_SYSCTL is disabled
by Zhengchao Shao 23 Jan '24

23 Jan '24

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8Y7PX CVE: NA -------------------------------- The following error is reported when the kernel is compiled with CONFIG_SYSCTL disabled: aarch64-linux-ld: net/ipv4/inet_hashtables.o: in function `__inet_hash_connect': inet_hashtables.c:(.text+0x3564): undefined reference to `sysctl_local_port_allocation' aarch64-linux-ld: net/ipv4/inet_hashtables.o: relocation R_AARCH64_ADR_PREL_PG_HI21 against symbol `sysctl_local_port_allocation' which may bind externally can not be used when making a shared object; recompile with -fPIC >> inet_hashtables.c:(.text+0x3564): dangerous relocation: unsupported relocation aarch64-linux-ld: inet_hashtables.c:(.text+0x3568): undefined reference to `sysctl_local_port_allocation' aarch64-linux-ld: inet_hashtables.c:(.text+0x3580): undefined reference to `sysctl_local_port_allocation' When CONFIG_SYSCTL is disabled, sysctl_local_port_allocation is undefined. Fixes: 208a72041292 ("tcp/dccp: Add another way to allocate local ports in connect()") Reported-by: kernel test robot <lkp(a)intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202401180939.2N529UUe-lkp@intel.com/ Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/ipv4/inet_hashtables.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c index a24dcf39e9ae..14da0ce40bad 100644 --- a/net/ipv4/inet_hashtables.c +++ b/net/ipv4/inet_hashtables.c @@ -1011,7 +1011,10 @@ int __inet_hash_connect(struct inet_timewait_death_row *death_row, struct inet_bind_bucket *tb; bool tb_created = false; u32 remaining, offset; - int ret, i, low, high, span_size; + int ret, i, low, high; +#if IS_ENABLED(CONFIG_SYSCTL) + int span_size; +#endif int l3mdev; u32 index; @@ -1021,11 +1024,13 @@ int __inet_hash_connect(struct inet_timewait_death_row *death_row, local_bh_enable(); return ret; } +#if IS_ENABLED(CONFIG_SYSCTL) /* local_port_allocation 0 means even and odd port allocation strategy * will be applied, so span size is 2; otherwise sequential allocation * will be used and span size is 1. Default value is 0. */ span_size = sysctl_local_port_allocation ? 1 : 2; +#endif l3mdev = inet_sk_bound_l3mdev(sk); @@ -1048,7 +1053,11 @@ int __inet_hash_connect(struct inet_timewait_death_row *death_row, offset &= ~1U; other_parity_scan: port = low + offset; +#if IS_ENABLED(CONFIG_SYSCTL) for (i = 0; i < remaining; i += span_size, port += span_size) { +#else + for (i = 0; i < remaining; i += 2, port += 2) { +#endif if (unlikely(port >= high)) port -= remaining; if (inet_is_local_reserved_port(net, port)) @@ -1089,7 +1098,11 @@ int __inet_hash_connect(struct inet_timewait_death_row *death_row, } offset++; +#if IS_ENABLED(CONFIG_SYSCTL) if ((offset & 1) && remaining > 1 && span_size == 2) +#else + if ((offset & 1) && remaining > 1) +#endif goto other_parity_scan; return -EADDRNOTAVAIL; -- 2.34.1

2 1

[openeuler:OLK-5.10 26782/30000] drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c:1030:27: warning: unused variable 'hdev'
by kernel test robot 23 Jan '24

23 Jan '24

tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: ddef9a7fc99eaf6e3fdd9800687c2aa34d9a37e9 commit: 1cdab7738ac98414f73d5d56f7d643e4398b9bf2 [26782/30000] UNIC: Supports query, configuration, and management of IP entry config: arm64-defconfig (https://download.01.org/0day-ci/archive/20240123/202401231038.k8yrs6Qq-lkp@…) compiler: aarch64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240123/202401231038.k8yrs6Qq-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202401231038.k8yrs6Qq-lkp@intel.com/ All warnings (new ones prefixed by >>): drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c: In function 'hclge_mbx_get_vf_flr_status_handler': >> drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c:1030:27: warning: unused variable 'hdev' [-Wunused-variable] 1030 | struct hclge_dev *hdev = param->vport->back; | ^~~~ drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c: In function 'hclge_mbx_vf_uninit_handler': drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c:1046:27: warning: unused variable 'hdev' [-Wunused-variable] 1046 | struct hclge_dev *hdev = param->vport->back; | ^~~~ vim +/hdev +1030 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c 1026 1027 static int 1028 hclge_mbx_get_vf_flr_status_handler(struct hclge_mbx_ops_param *param) 1029 { > 1030 struct hclge_dev *hdev = param->vport->back; 1031 1032 hclge_rm_vport_all_mac_table(param->vport, false, 1033 HCLGE_MAC_ADDR_UC); 1034 hclge_rm_vport_all_mac_table(param->vport, false, 1035 HCLGE_MAC_ADDR_MC); 1036 hclge_rm_vport_all_vlan_table(param->vport, false); 1037 #ifdef CONFIG_HNS3_UBL 1038 if (hnae3_dev_ubl_supported(hdev->ae_dev)) 1039 hclge_unic_rm_vport_all_ip_table(param->vport, false); 1040 #endif 1041 return 0; 1042 } 1043 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS 15329/21565] drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c:66:19: warning: array subscript 0 is outside array bounds of 'struct aperture[0]'
by kernel test robot 23 Jan '24

23 Jan '24

Hi shiyongbang, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: fb3a7131883be36037affebc26a6597087cbd012 commit: 97663f80b4826fcd792deef824b18510e139d674 [15329/21565] gpu: hibmc: Fix stuck when switch GUI to text. config: arm64-randconfig-001-20240112 (https://download.01.org/0day-ci/archive/20240123/202401230904.waKHfYdD-lkp@…) compiler: aarch64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240123/202401230904.waKHfYdD-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202401230904.waKHfYdD-lkp@intel.com/ All warnings (new ones prefixed by >>): drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c:40:13: warning: no previous prototype for 'hibmc_drm_interrupt' [-Wmissing-prototypes] 40 | irqreturn_t hibmc_drm_interrupt(int irq, void *arg) | ^~~~~~~~~~~~~~~~~~~ In function 'hibmc_remove_framebuffers', inlined from 'hibmc_pci_probe' at drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c:386:2: >> drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c:66:19: warning: array subscript 0 is outside array bounds of 'struct aperture[0]' [-Warray-bounds=] 66 | ap->ranges[0].base = pci_resource_start(pdev, 0); | ~~~~~~~~~~^~~ In file included from include/drm/drm_crtc.h:31, from include/drm/drm_atomic_helper.h:31, from drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c:22: include/linux/fb.h: In function 'hibmc_pci_probe': include/linux/fb.h:527:19: note: while referencing 'ranges' 527 | } ranges[0]; | ^~~~~~ In function 'hibmc_remove_framebuffers', inlined from 'hibmc_pci_probe' at drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c:386:2: drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c:67:19: warning: array subscript 0 is outside array bounds of 'struct aperture[0]' [-Warray-bounds=] 67 | ap->ranges[0].size = pci_resource_len(pdev, 0); | ~~~~~~~~~~^~~ include/linux/fb.h: In function 'hibmc_pci_probe': include/linux/fb.h:527:19: note: while referencing 'ranges' 527 | } ranges[0]; | ^~~~~~ vim +66 drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c 57 58 static void hibmc_remove_framebuffers(struct pci_dev *pdev) 59 { 60 struct apertures_struct *ap; 61 62 ap = alloc_apertures(1); 63 if (!ap) 64 return; 65 > 66 ap->ranges[0].base = pci_resource_start(pdev, 0); 67 ap->ranges[0].size = pci_resource_len(pdev, 0); 68 69 drm_fb_helper_remove_conflicting_framebuffers(ap, "hibmcdrmfb", false); 70 71 kfree(ap); 72 } 73 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS 12457/21565] drivers/char/svm.c:1762:36: warning: 'svm_acpi_match' defined but not used
by kernel test robot 23 Jan '24

23 Jan '24

Hi Lijun, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: fb3a7131883be36037affebc26a6597087cbd012 commit: d8e64215b6c932fd8d7c521d6cb3bcf6414d300c [12457/21565] svm: Delete ifdef CONFIG_ACPI in svm config: arm64-randconfig-001-20240112 (https://download.01.org/0day-ci/archive/20240123/202401230321.uVO9BE4k-lkp@…) compiler: aarch64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240123/202401230321.uVO9BE4k-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202401230321.uVO9BE4k-lkp@intel.com/ All warnings (new ones prefixed by >>): drivers/char/svm.c:158:6: warning: no previous prototype for 'sysrq_sched_debug_show_export' [-Wmissing-prototypes] 158 | void sysrq_sched_debug_show_export(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/char/svm.c:1132:5: warning: no previous prototype for 'svm_get_pasid' [-Wmissing-prototypes] 1132 | int svm_get_pasid(pid_t vpid, int dev_id __maybe_unused) | ^~~~~~~~~~~~~ >> drivers/char/svm.c:1762:36: warning: 'svm_acpi_match' defined but not used [-Wunused-const-variable=] 1762 | static const struct acpi_device_id svm_acpi_match[] = { | ^~~~~~~~~~~~~~ In file included from arch/arm64/include/asm/atomic.h:34, from include/linux/atomic.h:7, from include/asm-generic/bitops/atomic.h:5, from arch/arm64/include/asm/bitops.h:37, from include/linux/bitops.h:19, from include/linux/kernel.h:11, from include/asm-generic/bug.h:18, from arch/arm64/include/asm/bug.h:37, from arch/arm64/include/asm/memory.h:27, from arch/arm64/include/asm/esr.h:21, from drivers/char/svm.c:10: In function '__cmpxchg_case_mb_4', inlined from '__cmpxchg_mb' at arch/arm64/include/asm/cmpxchg.h:143:1, inlined from 'svm_proc_load_flag' at drivers/char/svm.c:1465:12: arch/arm64/include/asm/atomic_lse.h:458:9: warning: array subscript 'long unsigned int[0]' is partly outside array bounds of 'atomic_t[1]' [-Warray-bounds=] 458 | asm volatile(ARM64_LSE_ATOMIC_INSN( \ | ^~~ arch/arm64/include/asm/atomic_lse.h:487:1: note: in expansion of macro '__CMPXCHG_CASE' 487 | __CMPXCHG_CASE(w, , mb_4, al, "memory") | ^~~~~~~~~~~~~~ drivers/char/svm.c: In function 'svm_proc_load_flag': drivers/char/svm.c:1456:25: note: object 'l2buf_load_flag' of size 4 1456 | static atomic_t l2buf_load_flag = ATOMIC_INIT(0); | ^~~~~~~~~~~~~~~ In function '__cmpxchg_case_mb_4', inlined from '__cmpxchg_mb' at arch/arm64/include/asm/cmpxchg.h:143:1, inlined from 'svm_proc_load_flag' at drivers/char/svm.c:1465:12: arch/arm64/include/asm/atomic_lse.h:458:9: warning: array subscript 'long unsigned int[0]' is partly outside array bounds of 'atomic_t[1]' [-Warray-bounds=] 458 | asm volatile(ARM64_LSE_ATOMIC_INSN( \ | ^~~ arch/arm64/include/asm/atomic_lse.h:487:1: note: in expansion of macro '__CMPXCHG_CASE' 487 | __CMPXCHG_CASE(w, , mb_4, al, "memory") | ^~~~~~~~~~~~~~ drivers/char/svm.c: In function 'svm_proc_load_flag': drivers/char/svm.c:1456:25: note: object 'l2buf_load_flag' of size 4 1456 | static atomic_t l2buf_load_flag = ATOMIC_INIT(0); | ^~~~~~~~~~~~~~~ vim +/svm_acpi_match +1762 drivers/char/svm.c 8f29578be61750 Jiankang Chen 2019-10-28 1761 8f29578be61750 Jiankang Chen 2019-10-28 @1762 static const struct acpi_device_id svm_acpi_match[] = { 8f29578be61750 Jiankang Chen 2019-10-28 1763 { "HSVM1980", 0}, 8f29578be61750 Jiankang Chen 2019-10-28 1764 { } 8f29578be61750 Jiankang Chen 2019-10-28 1765 }; 8f29578be61750 Jiankang Chen 2019-10-28 1766 MODULE_DEVICE_TABLE(acpi, svm_acpi_match); d8e64215b6c932 Lijun Fang 2020-01-16 1767 :::::: The code at line 1762 was first introduced by commit :::::: 8f29578be61750d83b8effb090c25e07432dcb75 svm: add svm drv framework for hi1910 and hi1980 :::::: TO: Jiankang Chen <chenjiankang1(a)huawei.com> :::::: CC: Xie XiuQi <xiexiuqi(a)huawei.com> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS 15455/21561] drivers/staging/gmjstcm/tcm_tis_spi.c:817:36: warning: 'tcm_tis_spi_acpi_match' defined but not used
by kernel test robot 22 Jan '24

22 Jan '24

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: d7de179b5122c922d0dcae88231947a26f47b632 commit: 5ebbfc8c29eb5eb6dfdab853bdb2a622e0533d7e [15455/21561] staging: TCM: add GMJS(Nationz Tech) TCM driver. config: arm64-randconfig-002-20240120 (https://download.01.org/0day-ci/archive/20240122/202401222135.PnRKwawm-lkp@…) compiler: aarch64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240122/202401222135.PnRKwawm-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202401222135.PnRKwawm-lkp@intel.com/ All warnings (new ones prefixed by >>): drivers/staging/gmjstcm/tcm_tis_spi.c:109:5: warning: no previous prototype for 'tcm_tis_spi_transfer' [-Wmissing-prototypes] 109 | int tcm_tis_spi_transfer(struct device *dev, u32 addr, u16 len, | ^~~~~~~~~~~~~~~~~~~~ drivers/staging/gmjstcm/tcm_tis_spi.c: In function 'recv_data': drivers/staging/gmjstcm/tcm_tis_spi.c:423:13: warning: variable 'ret' set but not used [-Wunused-but-set-variable] 423 | int ret; | ^~~ drivers/staging/gmjstcm/tcm_tis_spi.c: At top level: >> drivers/staging/gmjstcm/tcm_tis_spi.c:817:36: warning: 'tcm_tis_spi_acpi_match' defined but not used [-Wunused-const-variable=] 817 | static const struct acpi_device_id tcm_tis_spi_acpi_match[] = { | ^~~~~~~~~~~~~~~~~~~~~~ drivers/staging/gmjstcm/tcm_tis_spi.c: In function 'cleanup_tis': >> drivers/staging/gmjstcm/tcm_tis_spi.c:249:17: warning: 'inten' may be used uninitialized [-Wmaybe-uninitialized] 249 | tcm_tis_writel(chip->dev, TCM_INT_ENABLE(chip->vendor.locality), | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 250 | ~TCM_GLOBAL_INT_ENABLE & inten); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/staging/gmjstcm/tcm_tis_spi.c:237:13: note: 'inten' was declared here 237 | u32 inten; | ^~~~~ drivers/staging/gmjstcm/tcm_tis_spi.c: In function 'tcm_tis_init': >> drivers/staging/gmjstcm/tcm_tis_spi.c:264:21: warning: 'vendor' may be used uninitialized [-Wmaybe-uninitialized] 264 | if ((vendor & 0xffff) != 0x19f5 && (vendor & 0xffff) != 0x1B4E) | ~~~~~~~~^~~~~~~~~ drivers/staging/gmjstcm/tcm_tis_spi.c:260:13: note: 'vendor' was declared here 260 | u32 vendor, intfcaps; | ^~~~~~ vim +/tcm_tis_spi_acpi_match +817 drivers/staging/gmjstcm/tcm_tis_spi.c 816 > 817 static const struct acpi_device_id tcm_tis_spi_acpi_match[] = { 818 {"TCMS0001", 0}, 819 {"SMO0768", 0}, 820 {"ZIC0601", 0}, 821 {} 822 }; 823 MODULE_DEVICE_TABLE(acpi, tcm_tis_spi_acpi_match); 824 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-5.10 26784/30000] drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h:721:43: warning: 'hclge_dbg_tqp_reg' defined but not used
by kernel test robot 22 Jan '24

22 Jan '24

tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 5b9222cde1b41a53fc814d98cd15aea84832aca3 commit: 193e5e1d2edcd566ccf9d920354ac22c3241434e [26784/30000] UNIC: add nfe ras for PFA and TXPM module config: arm64-defconfig (https://download.01.org/0day-ci/archive/20240122/202401222119.vrDbjHb2-lkp@…) compiler: aarch64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240122/202401222119.vrDbjHb2-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202401222119.vrDbjHb2-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_udma.c:19: >> drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h:721:43: warning: 'hclge_dbg_tqp_reg' defined but not used [-Wunused-const-variable=] 721 | static const struct hclge_dbg_dfx_message hclge_dbg_tqp_reg[] = { | ^~~~~~~~~~~~~~~~~ >> drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h:649:43: warning: 'hclge_dbg_rcb_reg' defined but not used [-Wunused-const-variable=] 649 | static const struct hclge_dbg_dfx_message hclge_dbg_rcb_reg[] = { | ^~~~~~~~~~~~~~~~~ >> drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h:493:43: warning: 'hclge_dbg_ppp_reg' defined but not used [-Wunused-const-variable=] 493 | static const struct hclge_dbg_dfx_message hclge_dbg_ppp_reg[] = { | ^~~~~~~~~~~~~~~~~ >> drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h:463:43: warning: 'hclge_dbg_rtc_reg' defined but not used [-Wunused-const-variable=] 463 | static const struct hclge_dbg_dfx_message hclge_dbg_rtc_reg[] = { | ^~~~~~~~~~~~~~~~~ >> drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h:391:43: warning: 'hclge_dbg_ncsi_reg' defined but not used [-Wunused-const-variable=] 391 | static const struct hclge_dbg_dfx_message hclge_dbg_ncsi_reg[] = { | ^~~~~~~~~~~~~~~~~~ >> drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h:375:43: warning: 'hclge_dbg_rpu_reg_1' defined but not used [-Wunused-const-variable=] 375 | static const struct hclge_dbg_dfx_message hclge_dbg_rpu_reg_1[] = { | ^~~~~~~~~~~~~~~~~~~ >> drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h:366:43: warning: 'hclge_dbg_rpu_reg_0' defined but not used [-Wunused-const-variable=] 366 | static const struct hclge_dbg_dfx_message hclge_dbg_rpu_reg_0[] = { | ^~~~~~~~~~~~~~~~~~~ >> drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h:301:43: warning: 'hclge_dbg_igu_egu_reg' defined but not used [-Wunused-const-variable=] 301 | static const struct hclge_dbg_dfx_message hclge_dbg_igu_egu_reg[] = { | ^~~~~~~~~~~~~~~~~~~~~ >> drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h:292:43: warning: 'hclge_dbg_ssu_reg_2' defined but not used [-Wunused-const-variable=] 292 | static const struct hclge_dbg_dfx_message hclge_dbg_ssu_reg_2[] = { | ^~~~~~~~~~~~~~~~~~~ >> drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h:185:43: warning: 'hclge_dbg_ssu_reg_1' defined but not used [-Wunused-const-variable=] 185 | static const struct hclge_dbg_dfx_message hclge_dbg_ssu_reg_1[] = { | ^~~~~~~~~~~~~~~~~~~ >> drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h:113:43: warning: 'hclge_dbg_ssu_reg_0' defined but not used [-Wunused-const-variable=] 113 | static const struct hclge_dbg_dfx_message hclge_dbg_ssu_reg_0[] = { | ^~~~~~~~~~~~~~~~~~~ >> drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h:97:43: warning: 'hclge_dbg_bios_common_reg' defined but not used [-Wunused-const-variable=] 97 | static const struct hclge_dbg_dfx_message hclge_dbg_bios_common_reg[] = { | ^~~~~~~~~~~~~~~~~~~~~~~~~ vim +/hclge_dbg_tqp_reg +721 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h 27cf979a15841e liuzhongzhu 2018-12-15 648 e4b9146849f246 Rikard Falkeborn 2020-09-22 @649 static const struct hclge_dbg_dfx_message hclge_dbg_rcb_reg[] = { 27cf979a15841e liuzhongzhu 2018-12-15 650 {false, "Reserved"}, 27cf979a15841e liuzhongzhu 2018-12-15 651 {true, "FSM_DFX_ST0"}, 27cf979a15841e liuzhongzhu 2018-12-15 652 {true, "FSM_DFX_ST1"}, 27cf979a15841e liuzhongzhu 2018-12-15 653 {true, "FSM_DFX_ST2"}, 27cf979a15841e liuzhongzhu 2018-12-15 654 {true, "FIFO_DFX_ST0"}, 27cf979a15841e liuzhongzhu 2018-12-15 655 {true, "FIFO_DFX_ST1"}, 27cf979a15841e liuzhongzhu 2018-12-15 656 27cf979a15841e liuzhongzhu 2018-12-15 657 {true, "FIFO_DFX_ST2"}, 27cf979a15841e liuzhongzhu 2018-12-15 658 {true, "FIFO_DFX_ST3"}, 27cf979a15841e liuzhongzhu 2018-12-15 659 {true, "FIFO_DFX_ST4"}, 27cf979a15841e liuzhongzhu 2018-12-15 660 {true, "FIFO_DFX_ST5"}, 27cf979a15841e liuzhongzhu 2018-12-15 661 {true, "FIFO_DFX_ST6"}, 27cf979a15841e liuzhongzhu 2018-12-15 662 {true, "FIFO_DFX_ST7"}, 27cf979a15841e liuzhongzhu 2018-12-15 663 27cf979a15841e liuzhongzhu 2018-12-15 664 {true, "FIFO_DFX_ST8"}, 27cf979a15841e liuzhongzhu 2018-12-15 665 {true, "FIFO_DFX_ST9"}, 27cf979a15841e liuzhongzhu 2018-12-15 666 {true, "FIFO_DFX_ST10"}, 27cf979a15841e liuzhongzhu 2018-12-15 667 {true, "FIFO_DFX_ST11"}, 27cf979a15841e liuzhongzhu 2018-12-15 668 {true, "Q_CREDIT_VLD_0"}, 27cf979a15841e liuzhongzhu 2018-12-15 669 {true, "Q_CREDIT_VLD_1"}, 27cf979a15841e liuzhongzhu 2018-12-15 670 27cf979a15841e liuzhongzhu 2018-12-15 671 {true, "Q_CREDIT_VLD_2"}, 27cf979a15841e liuzhongzhu 2018-12-15 672 {true, "Q_CREDIT_VLD_3"}, 27cf979a15841e liuzhongzhu 2018-12-15 673 {true, "Q_CREDIT_VLD_4"}, 27cf979a15841e liuzhongzhu 2018-12-15 674 {true, "Q_CREDIT_VLD_5"}, 27cf979a15841e liuzhongzhu 2018-12-15 675 {true, "Q_CREDIT_VLD_6"}, 27cf979a15841e liuzhongzhu 2018-12-15 676 {true, "Q_CREDIT_VLD_7"}, 27cf979a15841e liuzhongzhu 2018-12-15 677 27cf979a15841e liuzhongzhu 2018-12-15 678 {true, "Q_CREDIT_VLD_8"}, 27cf979a15841e liuzhongzhu 2018-12-15 679 {true, "Q_CREDIT_VLD_9"}, 27cf979a15841e liuzhongzhu 2018-12-15 680 {true, "Q_CREDIT_VLD_10"}, 27cf979a15841e liuzhongzhu 2018-12-15 681 {true, "Q_CREDIT_VLD_11"}, 27cf979a15841e liuzhongzhu 2018-12-15 682 {true, "Q_CREDIT_VLD_12"}, 27cf979a15841e liuzhongzhu 2018-12-15 683 {true, "Q_CREDIT_VLD_13"}, 27cf979a15841e liuzhongzhu 2018-12-15 684 27cf979a15841e liuzhongzhu 2018-12-15 685 {true, "Q_CREDIT_VLD_14"}, 27cf979a15841e liuzhongzhu 2018-12-15 686 {true, "Q_CREDIT_VLD_15"}, 27cf979a15841e liuzhongzhu 2018-12-15 687 {true, "Q_CREDIT_VLD_16"}, 27cf979a15841e liuzhongzhu 2018-12-15 688 {true, "Q_CREDIT_VLD_17"}, 27cf979a15841e liuzhongzhu 2018-12-15 689 {true, "Q_CREDIT_VLD_18"}, 27cf979a15841e liuzhongzhu 2018-12-15 690 {true, "Q_CREDIT_VLD_19"}, 27cf979a15841e liuzhongzhu 2018-12-15 691 27cf979a15841e liuzhongzhu 2018-12-15 692 {true, "Q_CREDIT_VLD_20"}, 27cf979a15841e liuzhongzhu 2018-12-15 693 {true, "Q_CREDIT_VLD_21"}, 27cf979a15841e liuzhongzhu 2018-12-15 694 {true, "Q_CREDIT_VLD_22"}, 27cf979a15841e liuzhongzhu 2018-12-15 695 {true, "Q_CREDIT_VLD_23"}, 27cf979a15841e liuzhongzhu 2018-12-15 696 {true, "Q_CREDIT_VLD_24"}, 27cf979a15841e liuzhongzhu 2018-12-15 697 {true, "Q_CREDIT_VLD_25"}, 27cf979a15841e liuzhongzhu 2018-12-15 698 27cf979a15841e liuzhongzhu 2018-12-15 699 {true, "Q_CREDIT_VLD_26"}, 27cf979a15841e liuzhongzhu 2018-12-15 700 {true, "Q_CREDIT_VLD_27"}, 27cf979a15841e liuzhongzhu 2018-12-15 701 {true, "Q_CREDIT_VLD_28"}, 27cf979a15841e liuzhongzhu 2018-12-15 702 {true, "Q_CREDIT_VLD_29"}, 27cf979a15841e liuzhongzhu 2018-12-15 703 {true, "Q_CREDIT_VLD_30"}, 27cf979a15841e liuzhongzhu 2018-12-15 704 {true, "Q_CREDIT_VLD_31"}, 27cf979a15841e liuzhongzhu 2018-12-15 705 27cf979a15841e liuzhongzhu 2018-12-15 706 {true, "GRO_BD_SERR_CNT"}, 27cf979a15841e liuzhongzhu 2018-12-15 707 {true, "GRO_CONTEXT_SERR_CNT"}, 27cf979a15841e liuzhongzhu 2018-12-15 708 {true, "RX_STASH_CFG_SERR_CNT"}, 27cf979a15841e liuzhongzhu 2018-12-15 709 {true, "AXI_RD_FBD_SERR_CNT"}, 27cf979a15841e liuzhongzhu 2018-12-15 710 {true, "GRO_BD_MERR_CNT"}, 27cf979a15841e liuzhongzhu 2018-12-15 711 {true, "GRO_CONTEXT_MERR_CNT"}, 27cf979a15841e liuzhongzhu 2018-12-15 712 27cf979a15841e liuzhongzhu 2018-12-15 713 {true, "RX_STASH_CFG_MERR_CNT"}, 27cf979a15841e liuzhongzhu 2018-12-15 714 {true, "AXI_RD_FBD_MERR_CNT"}, 27cf979a15841e liuzhongzhu 2018-12-15 715 {false, "Reserved"}, 27cf979a15841e liuzhongzhu 2018-12-15 716 {false, "Reserved"}, 27cf979a15841e liuzhongzhu 2018-12-15 717 {false, "Reserved"}, 27cf979a15841e liuzhongzhu 2018-12-15 718 {false, "Reserved"}, 27cf979a15841e liuzhongzhu 2018-12-15 719 }; 27cf979a15841e liuzhongzhu 2018-12-15 720 e4b9146849f246 Rikard Falkeborn 2020-09-22 @721 static const struct hclge_dbg_dfx_message hclge_dbg_tqp_reg[] = { 27cf979a15841e liuzhongzhu 2018-12-15 722 {true, "q_num"}, 27cf979a15841e liuzhongzhu 2018-12-15 723 {true, "RCB_CFG_RX_RING_TAIL"}, 27cf979a15841e liuzhongzhu 2018-12-15 724 {true, "RCB_CFG_RX_RING_HEAD"}, 27cf979a15841e liuzhongzhu 2018-12-15 725 {true, "RCB_CFG_RX_RING_FBDNUM"}, 27cf979a15841e liuzhongzhu 2018-12-15 726 {true, "RCB_CFG_RX_RING_OFFSET"}, 27cf979a15841e liuzhongzhu 2018-12-15 727 {true, "RCB_CFG_RX_RING_FBDOFFSET"}, 27cf979a15841e liuzhongzhu 2018-12-15 728 27cf979a15841e liuzhongzhu 2018-12-15 729 {true, "RCB_CFG_RX_RING_PKTNUM_RECORD"}, 27cf979a15841e liuzhongzhu 2018-12-15 730 {true, "RCB_CFG_TX_RING_TAIL"}, 27cf979a15841e liuzhongzhu 2018-12-15 731 {true, "RCB_CFG_TX_RING_HEAD"}, 27cf979a15841e liuzhongzhu 2018-12-15 732 {true, "RCB_CFG_TX_RING_FBDNUM"}, 27cf979a15841e liuzhongzhu 2018-12-15 733 {true, "RCB_CFG_TX_RING_OFFSET"}, 27cf979a15841e liuzhongzhu 2018-12-15 734 {true, "RCB_CFG_TX_RING_EBDNUM"}, 27cf979a15841e liuzhongzhu 2018-12-15 735 }; 27cf979a15841e liuzhongzhu 2018-12-15 736 :::::: The code at line 721 was first introduced by commit :::::: e4b9146849f246e77da4787657a3a95c1b6d2833 net: hns3: Constify static structs :::::: TO: Rikard Falkeborn <rikard.falkeborn(a)gmail.com> :::::: CC: David S. Miller <davem(a)davemloft.net> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH openEuler-1.0-LTS] sctp: fix potential deadlock on &net->sctp.addr_wq_lock
by Dong Chenchen 22 Jan '24

22 Jan '24

From: Chengfeng Ye <dg573847474(a)gmail.com> stable inclusion from stable-v4.19.290 commit 0ad0e8b0cb0e28626ab6dffe3da883941b9cbc4b category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I8WZLA CVE: CVE-2024-0639 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 6feb37b3b06e9049e20dcf7e23998f92c9c5be9a ] As &net->sctp.addr_wq_lock is also acquired by the timer sctp_addr_wq_timeout_handler() in protocal.c, the same lock acquisition at sctp_auto_asconf_init() seems should disable irq since it is called from sctp_accept() under process context. Possible deadlock scenario: sctp_accept() -> sctp_sock_migrate() -> sctp_auto_asconf_init() -> spin_lock(&net->sctp.addr_wq_lock) <timer interrupt> -> sctp_addr_wq_timeout_handler() -> spin_lock_bh(&net->sctp.addr_wq_lock); (deadlock here) This flaw was found using an experimental static analysis tool we are developing for irq-related deadlock. The tentative patch fix the potential deadlock by spin_lock_bh(). Signed-off-by: Chengfeng Ye <dg573847474(a)gmail.com> Fixes: 34e5b0118685 ("sctp: delay auto_asconf init until binding the first addr") Acked-by: Xin Long <lucien.xin(a)gmail.com> Link: https://lore.kernel.org/r/20230627120340.19432-1-dg573847474@gmail.com Signed-off-by: Paolo Abeni <pabeni(a)redhat.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Dong Chenchen <dongchenchen2(a)huawei.com> --- net/sctp/socket.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 261ff3dd5a94..2a11b464182e 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -380,9 +380,9 @@ static void sctp_auto_asconf_init(struct sctp_sock *sp) struct net *net = sock_net(&sp->inet.sk); if (net->sctp.default_auto_asconf) { - spin_lock(&net->sctp.addr_wq_lock); + spin_lock_bh(&net->sctp.addr_wq_lock); list_add_tail(&sp->auto_asconf_list, &net->sctp.auto_asconf_splist); - spin_unlock(&net->sctp.addr_wq_lock); + spin_unlock_bh(&net->sctp.addr_wq_lock); sp->do_auto_asconf = 1; } } -- 2.25.1

2 1

[PATCH OLK-6.6 0/4] KABI reservation for driver
by Yi Yang 22 Jan '24

22 Jan '24

KABI reservation for tty/mtd/mmc/ipmi Yi Yang (4): tty: kabi: KABI reservation for tty mtd: kabi: KABI reservation for mtd mmc: kabi: KABI reservation for mmc ipmi: kabi: KABI reservation for ipmi drivers/char/ipmi/ipmi_msghandler.c | 7 +++++++ include/linux/ipmi.h | 3 +++ include/linux/ipmi_smi.h | 5 +++++ include/linux/mmc/card.h | 6 ++++++ include/linux/mmc/host.h | 8 ++++++++ include/linux/mtd/mtd.h | 11 +++++++++++ include/linux/mtd/partitions.h | 3 +++ include/linux/tty.h | 7 +++++++ include/linux/tty_buffer.h | 5 +++++ include/linux/tty_driver.h | 3 +++ include/linux/tty_ldisc.h | 3 +++ include/linux/tty_port.h | 3 +++ 12 files changed, 64 insertions(+) -- 2.25.1

2 5

[PATCH OLK-5.10 v2] fs:/dcache.c: fix negative dentry limit not complete problem
by Long Li 22 Jan '24

22 Jan '24

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8WPQW CVE: NA -------------------------------- Restrictions of negative dentry can avoid softlock when too many dentry in memory, but restrictions before do not always take effect. For example, removing files which has been created would not enter retain_dentry(), because the dentry of file maybe has been added to lru list of superblock, it caused that fast_dput() reutrn true in last dput(). So, add restriction logic for the file which has been added to the lru list in fast_dput(), it prevents the negative dentry exceeding the limit when deleting existing file. Factor out negative dentry limit logic into limit_negative_dentry(), make the coude more clean. Fixes: c44e1f780873 ("fs/dcache.c: avoid softlock since too many negative dentry") Signed-off-by: Long Li <leo.lilong(a)huawei.com> --- fs/dcache.c | 58 +++++++++++++++++++++++++++++++++-------------------- 1 file changed, 36 insertions(+), 22 deletions(-) diff --git a/fs/dcache.c b/fs/dcache.c index f5b78cc80a00..cd00c22f0005 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -647,10 +647,36 @@ static inline struct dentry *lock_parent(struct dentry *dentry) return __lock_parent(dentry); } -static inline bool retain_dentry(struct dentry *dentry) +/* + * Return true if dentry is negative and exceed negative dentry limit. + */ +static inline bool limit_negative_dentry(struct dentry *dentry) { struct dentry *parent; + parent = dentry->d_parent; + if (unlikely(!parent)) + return false; + + WARN_ON((atomic_read(&parent->d_neg_dnum) < 0)); + if (!dentry->d_inode) { + if (!(dentry->d_flags & DCACHE_NEGATIVE_ACCOUNT)) { + unsigned int flags = READ_ONCE(dentry->d_flags); + + flags |= DCACHE_NEGATIVE_ACCOUNT; + WRITE_ONCE(dentry->d_flags, flags); + atomic_inc(&parent->d_neg_dnum); + } + + if (atomic_read(&parent->d_neg_dnum) >= NEG_DENTRY_LIMIT) + return true; + } + + return false; +} + +static inline bool retain_dentry(struct dentry *dentry) +{ WARN_ON(d_in_lookup(dentry)); /* Unreachable? Get rid of it */ @@ -668,27 +694,9 @@ static inline bool retain_dentry(struct dentry *dentry) if (unlikely(dentry->d_flags & DCACHE_DONTCACHE)) return false; - if (unlikely(!dentry->d_parent)) - goto noparent; - - parent = dentry->d_parent; - /* Return false if it's negative */ - WARN_ON((atomic_read(&parent->d_neg_dnum) < 0)); - if (!dentry->d_inode) { - if (!(dentry->d_flags & DCACHE_NEGATIVE_ACCOUNT)) { - unsigned int flags = READ_ONCE(dentry->d_flags); - - flags |= DCACHE_NEGATIVE_ACCOUNT; - WRITE_ONCE(dentry->d_flags, flags); - atomic_inc(&parent->d_neg_dnum); - } - } - - if (!dentry->d_inode && - atomic_read(&parent->d_neg_dnum) >= NEG_DENTRY_LIMIT) + if (unlikely(limit_negative_dentry(dentry))) return false; -noparent: /* retain; LRU fodder */ dentry->d_lockref.count--; if (unlikely(!(dentry->d_flags & DCACHE_LRU_LIST))) @@ -837,8 +845,14 @@ static inline bool fast_dput(struct dentry *dentry) d_flags &= DCACHE_REFERENCED | DCACHE_LRU_LIST | DCACHE_DISCONNECTED; /* Nothing to do? Dropping the reference was all we needed? */ - if (d_flags == (DCACHE_REFERENCED | DCACHE_LRU_LIST) && !d_unhashed(dentry)) - return true; + if (d_flags == (DCACHE_REFERENCED | DCACHE_LRU_LIST) && !d_unhashed(dentry)) { + /* + * If dentry is negative and need to be limitted, it maybe need + * to be killed, so shouldn't fast put and retain in memory. + */ + if (likely(!limit_negative_dentry(dentry))) + return true; + } /* * Not the fast normal case? Get the lock. We've already decremented -- 2.31.1

2 1

[PATCH OLK-6.6 0/1] arm64: Add CONFIG_IPI_AS_NMI to IPI as NMI
by Liao Chen 22 Jan '24

22 Jan '24

This patch adds CONFIG_IPI_AS_NMI to control the availability of pseudo NMIs, which follows upstream commit 41ddf73f9f7e (arm64: Add framework to turn IPI as NMI). CONFIG_IPI_AS_NMI depends on: ARM64_PSEUDO_NMI=y Liao Chen (1): arm64: Add CONFIG_IPI_AS_NMI to IPI as NMI feature arch/arm64/Kconfig | 12 +++++++++++- arch/arm64/kernel/kgdb.c | 2 ++ arch/arm64/kernel/smp.c | 6 ++++++ include/linux/nmi.h | 2 +- 4 files changed, 20 insertions(+), 2 deletions(-) -- 2.34.1

2 2

[PATCH OLK-6.6 0/1] arm64: Add CONFIG_IPI_AS_NMI to IPI as NMI
by Liao Chen 22 Jan '24

22 Jan '24

This patch adds CONFIG_IPI_AS_NMI to control the availability of pseudo NMIs, which follows upstream commit 41ddf73f9f7e (arm64: Add framework to turn IPI as NMI). CONFIG_IPI_AS_NMI depends on: ARM64_PSEUDO_NMI=y Liao Chen (1): arm64: Add CONFIG_IPI_AS_NMI to IPI as NMI feature arch/arm64/Kconfig | 12 +++++++++++- arch/arm64/kernel/kgdb.c | 2 ++ arch/arm64/kernel/smp.c | 6 ++++++ include/linux/nmi.h | 2 +- 4 files changed, 20 insertions(+), 2 deletions(-) -- 2.34.1

2 2

[PATCH OLK-6.6] drm/qxl: Fix missing free_irq
by Wei Li 22 Jan '24

22 Jan '24

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I5Q4S3 -------------------------------- When doing "cat /proc/interrupts" after qxl.ko is unloaded, an oops occurs: BUG: unable to handle page fault for address: ffffffffc0274769 PGD 2a0d067 P4D 2a0d067 PUD 2a0f067 PMD 103f39067 PTE 0 Oops: 0000 [#1] PREEMPT SMP PTI CPU: 6 PID: 246 Comm: cat Not tainted 6.1.0-rc2 #24 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014 RIP: 0010:string_nocheck+0x34/0x50 Code: 66 85 c0 74 3c 83 e8 01 4c 8d 5c 07 01 31 c0 eb 19 49 39 fa 76 03 44 88 07 48 83 c7 RSP: 0018:ffffc90000893bb8 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffffc90000893c50 RCX: ffff0a00ffffff04 RDX: ffffffffc0274769 RSI: ffff888102812000 RDI: ffff88810281133e RBP: ffff888102812000 R08: ffffffff823fa5e6 R09: 0000000000000007 R10: ffff888102812000 R11: ffff88820281133d R12: ffffffffc0274769 R13: ffff0a00ffffff04 R14: 0000000000000cc4 R15: ffffffff823276b4 FS: 000000000214f8c0(0000) GS:ffff88842fd80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffc0274769 CR3: 00000001025c4005 CR4: 0000000000770ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: <TASK> string+0x46/0x60 vsnprintf+0x27a/0x4f0 seq_vprintf+0x34/0x50 seq_printf+0x53/0x70 ? seq_read_iter+0x365/0x450 show_interrupts+0x259/0x330 seq_read_iter+0x2a3/0x450 proc_reg_read_iter+0x47/0x70 generic_file_splice_read+0x94/0x160 splice_direct_to_actor+0xb0/0x230 ? do_splice_direct+0xd0/0xd0 do_splice_direct+0x8b/0xd0 do_sendfile+0x345/0x4f0 __x64_sys_sendfile64+0xa1/0xc0 do_syscall_64+0x38/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x4bb0ce Code: c3 0f 1f 00 4c 89 d2 4c 89 c6 e9 bd fd ff ff 0f 1f 44 00 00 31 c0 c3 0f 1f 44 00 00 RSP: 002b:00007ffd99dc3fb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 0000000001000000 RCX: 00000000004bb0ce RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000001 RBP: 0000000000000001 R08: 000000000068f240 R09: 0000000001000000 R10: 0000000001000000 R11: 0000000000000246 R12: 0000000000000003 R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000 </TASK> It seems that qxl doesn't free the interrupt it requests during unload, fix this by adding the missing free_irq(). Fixes: f64122c1f6ad ("drm: add new QXL driver. (v1.4)") Signed-off-by: Wei Li <liwei391(a)huawei.com> --- drivers/gpu/drm/qxl/qxl_kms.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/qxl/qxl_kms.c b/drivers/gpu/drm/qxl/qxl_kms.c index dc3828db1991..d591084824de 100644 --- a/drivers/gpu/drm/qxl/qxl_kms.c +++ b/drivers/gpu/drm/qxl/qxl_kms.c @@ -283,6 +283,8 @@ int qxl_device_init(struct qxl_device *qdev, void qxl_device_fini(struct qxl_device *qdev) { int cur_idx; + struct drm_device *ddev = &qdev->ddev; + struct pci_dev *pdev = to_pci_dev(ddev->dev); /* check if qxl_device_init() was successful (gc_work is initialized last) */ if (!qdev->gc_work.func) @@ -305,6 +307,7 @@ void qxl_device_fini(struct qxl_device *qdev) wait_event_timeout(qdev->release_event, atomic_read(&qdev->release_count) == 0, HZ); + free_irq(pdev->irq, ddev); flush_work(&qdev->gc_work); qxl_surf_evict(qdev); qxl_vram_evict(qdev); -- 2.25.1

2 1

[PATCH OLK-6.6] drm/qxl: Fix missing free_irq
by Wei Li 22 Jan '24

22 Jan '24

When doing "cat /proc/interrupts" after qxl.ko is unloaded, an oops occurs: BUG: unable to handle page fault for address: ffffffffc0274769 PGD 2a0d067 P4D 2a0d067 PUD 2a0f067 PMD 103f39067 PTE 0 Oops: 0000 [#1] PREEMPT SMP PTI CPU: 6 PID: 246 Comm: cat Not tainted 6.1.0-rc2 #24 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014 RIP: 0010:string_nocheck+0x34/0x50 Code: 66 85 c0 74 3c 83 e8 01 4c 8d 5c 07 01 31 c0 eb 19 49 39 fa 76 03 44 88 07 48 83 c7 RSP: 0018:ffffc90000893bb8 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffffc90000893c50 RCX: ffff0a00ffffff04 RDX: ffffffffc0274769 RSI: ffff888102812000 RDI: ffff88810281133e RBP: ffff888102812000 R08: ffffffff823fa5e6 R09: 0000000000000007 R10: ffff888102812000 R11: ffff88820281133d R12: ffffffffc0274769 R13: ffff0a00ffffff04 R14: 0000000000000cc4 R15: ffffffff823276b4 FS: 000000000214f8c0(0000) GS:ffff88842fd80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffc0274769 CR3: 00000001025c4005 CR4: 0000000000770ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: <TASK> string+0x46/0x60 vsnprintf+0x27a/0x4f0 seq_vprintf+0x34/0x50 seq_printf+0x53/0x70 ? seq_read_iter+0x365/0x450 show_interrupts+0x259/0x330 seq_read_iter+0x2a3/0x450 proc_reg_read_iter+0x47/0x70 generic_file_splice_read+0x94/0x160 splice_direct_to_actor+0xb0/0x230 ? do_splice_direct+0xd0/0xd0 do_splice_direct+0x8b/0xd0 do_sendfile+0x345/0x4f0 __x64_sys_sendfile64+0xa1/0xc0 do_syscall_64+0x38/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x4bb0ce Code: c3 0f 1f 00 4c 89 d2 4c 89 c6 e9 bd fd ff ff 0f 1f 44 00 00 31 c0 c3 0f 1f 44 00 00 RSP: 002b:00007ffd99dc3fb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 0000000001000000 RCX: 00000000004bb0ce RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000001 RBP: 0000000000000001 R08: 000000000068f240 R09: 0000000001000000 R10: 0000000001000000 R11: 0000000000000246 R12: 0000000000000003 R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000 </TASK> It seems that qxl doesn't free the interrupt it requests during unload, fix this by adding the missing free_irq(). Fixes: f64122c1f6ad ("drm: add new QXL driver. (v1.4)") Signed-off-by: Wei Li <liwei391(a)huawei.com> --- drivers/gpu/drm/qxl/qxl_kms.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/qxl/qxl_kms.c b/drivers/gpu/drm/qxl/qxl_kms.c index dc3828db1991..d591084824de 100644 --- a/drivers/gpu/drm/qxl/qxl_kms.c +++ b/drivers/gpu/drm/qxl/qxl_kms.c @@ -283,6 +283,8 @@ int qxl_device_init(struct qxl_device *qdev, void qxl_device_fini(struct qxl_device *qdev) { int cur_idx; + struct drm_device *ddev = &qdev->ddev; + struct pci_dev *pdev = to_pci_dev(ddev->dev); /* check if qxl_device_init() was successful (gc_work is initialized last) */ if (!qdev->gc_work.func) @@ -305,6 +307,7 @@ void qxl_device_fini(struct qxl_device *qdev) wait_event_timeout(qdev->release_event, atomic_read(&qdev->release_count) == 0, HZ); + free_irq(pdev->irq, ddev); flush_work(&qdev->gc_work); qxl_surf_evict(qdev); qxl_vram_evict(qdev); -- 2.25.1

2 1

[PATCH OLK-6.6] openeuler_defconfig: enable CONFIG_BLK_CGROUP_FC_APPID
by Li Nan 22 Jan '24

22 Jan '24

hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I8Y0RR -------------------------------- Enable CONFIG_BLK_CGROUP_FC_APPID for x86, arm64 by default. Signed-off-by: Li Nan <linan122(a)huawei.com> --- arch/arm64/configs/openeuler_defconfig | 2 +- arch/x86/configs/openeuler_defconfig | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/configs/openeuler_defconfig b/arch/arm64/configs/openeuler_defconfig index 10f6012b44ec..cd928ac518b0 100644 --- a/arch/arm64/configs/openeuler_defconfig +++ b/arch/arm64/configs/openeuler_defconfig @@ -894,7 +894,7 @@ CONFIG_BLK_DEV_SUPPORT_LEGACY_GLOBAL_LIMIT=y CONFIG_BLK_WBT=y CONFIG_BLK_WBT_MQ=y # CONFIG_BLK_CGROUP_IOLATENCY is not set -# CONFIG_BLK_CGROUP_FC_APPID is not set +CONFIG_BLK_CGROUP_FC_APPID=y CONFIG_BLK_CGROUP_IOCOST=y CONFIG_BLK_CGROUP_LEGACY_IOCOST=y # CONFIG_BLK_CGROUP_IOPRIO is not set diff --git a/arch/x86/configs/openeuler_defconfig b/arch/x86/configs/openeuler_defconfig index 16381ff5b9ae..052cde08be9d 100644 --- a/arch/x86/configs/openeuler_defconfig +++ b/arch/x86/configs/openeuler_defconfig @@ -958,7 +958,7 @@ CONFIG_BLK_DEV_SUPPORT_LEGACY_GLOBAL_LIMIT=y CONFIG_BLK_WBT=y CONFIG_BLK_WBT_MQ=y # CONFIG_BLK_CGROUP_IOLATENCY is not set -# CONFIG_BLK_CGROUP_FC_APPID is not set +CONFIG_BLK_CGROUP_FC_APPID=y CONFIG_BLK_CGROUP_IOCOST=y CONFIG_BLK_CGROUP_LEGACY_IOCOST=y # CONFIG_BLK_CGROUP_IOPRIO is not set -- 2.39.2

2 1