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[openeuler:OLK-6.6 3212/3212] drivers/pinctrl/zhaoxin/pinctrl-kx7000.c:307:23: warning: overlapping comparisons always evaluate to true
by kernel test robot 17 Nov '25

17 Nov '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 1814a55bda7a73d33ecfdcf11802a1bc667c2e3e commit: 5d01c9ec4f3b95b0629a38d936f69bc05e494cc9 [3212/3212] pinctrl: Zhaoxin: Add KH-50000 support config: x86_64-randconfig-r073-20251117 (https://download.01.org/0day-ci/archive/20251117/202511171908.GkIEY88E-lkp@…) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251117/202511171908.GkIEY88E-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/202511171908.GkIEY88E-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/pinctrl/zhaoxin/pinctrl-kx7000.c:307:23: warning: overlapping comparisons always evaluate to true [-Wtautological-overlap-compare] 307 | else if (pin >= 0x62 || pin <= 0x70) | ~~~~~~~~~~~~^~~~~~~~~~~~~~ drivers/pinctrl/zhaoxin/pinctrl-kx7000.c:305:23: warning: overlapping comparisons always evaluate to true [-Wtautological-overlap-compare] 305 | else if (pin >= 0x57 || pin <= 0x5F) | ~~~~~~~~~~~~^~~~~~~~~~~~~~ 2 warnings generated. Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for PTP_1588_CLOCK Depends on [n]: NET [=y] && POSIX_TIMERS [=n] Selected by [m]: - SXE [=m] && NETDEVICES [=y] && ETHERNET [=y] && NET_VENDOR_LINKDATA [=y] && (X86 [=y] || ARM64) && PCI [=y] - SXE_VF [=m] && NETDEVICES [=y] && ETHERNET [=y] && NET_VENDOR_LINKDATA [=y] && (X86 [=y] || ARM64) && PCI [=y] vim +307 drivers/pinctrl/zhaoxin/pinctrl-kx7000.c 288 289 static enum zx_gpio_type kx7000_gpio_type(struct zhaoxin_pinctrl *pctrl, unsigned int pin) 290 { 291 if (pin >= 0xE && pin <= 0x13) 292 return ZX_TYPE_PGPIO; 293 else if (pin >= 0x16 && pin <= 0x28) 294 return ZX_TYPE_PGPIO; 295 else if (pin >= 0x29 && pin <= 0x32) 296 return ZX_TYPE_GPIO; 297 else if (pin == 0x35 || pin == 0x3B) 298 return ZX_TYPE_PGPIO; 299 else if (pin >= 0x42 && pin <= 0x47) 300 return ZX_TYPE_PGPIO; 301 else if (pin == 0x4E || pin == 0x50) 302 return ZX_TYPE_PGPIO; 303 else if (pin == 0x52 || pin == 0x55) 304 return ZX_TYPE_PGPIO; 305 else if (pin >= 0x57 || pin <= 0x5F) 306 return ZX_TYPE_PGPIO; > 307 else if (pin >= 0x62 || pin <= 0x70) 308 return ZX_TYPE_PGPIO; 309 else 310 return ZX_TYPE_ERROR; 311 } 312 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-6.6] media: v4l2-subdev: Fix alloc failure check in v4l2_subdev_call_state_try()
by Zhang Kunbo 17 Nov '25

17 Nov '25

From: Tomi Valkeinen <tomi.valkeinen(a)ideasonboard.com> stable inclusion from stable-v6.6.113 commit ed30811fbed40751deb952bde534aa2632dc0bf7 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/ID6BWA CVE: CVE-2025-40207 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit f37df9a0eb5e43fcfe02cbaef076123dc0d79c7e upstream. v4l2_subdev_call_state_try() macro allocates a subdev state with __v4l2_subdev_state_alloc(), but does not check the returned value. If __v4l2_subdev_state_alloc fails, it returns an ERR_PTR, and that would cause v4l2_subdev_call_state_try() to crash. Add proper error handling to v4l2_subdev_call_state_try(). Signed-off-by: Tomi Valkeinen <tomi.valkeinen(a)ideasonboard.com> Fixes: 982c0487185b ("media: subdev: Add v4l2_subdev_call_state_try() macro") Reported-by: Dan Carpenter <dan.carpenter(a)linaro.org> Closes: https://lore.kernel.org/all/aJTNtpDUbTz7eyJc%40stanley.mountain/ Cc: stable(a)vger.kernel.org Reviewed-by: Dan Carpenter <dan.carpenter(a)linaro.org> Signed-off-by: Sakari Ailus <sakari.ailus(a)linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil+cisco(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Zhang Kunbo <zhangkunbo(a)huawei.com> --- include/media/v4l2-subdev.h | 30 +++++++++++++++++------------- 1 file changed, 17 insertions(+), 13 deletions(-) diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index b4fcd0164048..c2c6dcced8bc 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -1879,19 +1879,23 @@ extern const struct v4l2_subdev_ops v4l2_subdev_call_wrappers; * * Note: only legacy non-MC drivers may need this macro. */ -#define v4l2_subdev_call_state_try(sd, o, f, args...) \ - ({ \ - int __result; \ - static struct lock_class_key __key; \ - const char *name = KBUILD_BASENAME \ - ":" __stringify(__LINE__) ":state->lock"; \ - struct v4l2_subdev_state *state = \ - __v4l2_subdev_state_alloc(sd, name, &__key); \ - v4l2_subdev_lock_state(state); \ - __result = v4l2_subdev_call(sd, o, f, state, ##args); \ - v4l2_subdev_unlock_state(state); \ - __v4l2_subdev_state_free(state); \ - __result; \ +#define v4l2_subdev_call_state_try(sd, o, f, args...) \ + ({ \ + int __result; \ + static struct lock_class_key __key; \ + const char *name = KBUILD_BASENAME \ + ":" __stringify(__LINE__) ":state->lock"; \ + struct v4l2_subdev_state *state = \ + __v4l2_subdev_state_alloc(sd, name, &__key); \ + if (IS_ERR(state)) { \ + __result = PTR_ERR(state); \ + } else { \ + v4l2_subdev_lock_state(state); \ + __result = v4l2_subdev_call(sd, o, f, state, ##args); \ + v4l2_subdev_unlock_state(state); \ + __v4l2_subdev_state_free(state); \ + } \ + __result; \ }) /** -- 2.34.1

2 1

[PATCH OLK-6.6 v10 00/10] Add xcall 2.0 support
by Jinjie Ruan 17 Nov '25

17 Nov '25

Add xcall 2.0 support, which is compatible with xcall1.0, and can be used to dynamic instruction replacement for hardware xcall. Changes in v10: - Fix memory leak in parse_xcall_command(). - Fix memory leak in xcall_comm_open(). - Add comment for smp_store_release(&mm->xcall, area). - Add sys_call_data in xcall_area struct. - clear_xcall_area() in __mmdrop() instead of __mmput(). - Add prefetch ko with some cleanup. Chanegs in v9: - /proc/xcall/comm, 0644 -> 0640 - /proc/xcall/comm check proc_mkdir("xcall", NULL) return value, use it as the parent proc_dir_entry for "comm". - Consider next task is NULL for xcall_info_switch(). - Return -EINVAL for error path in parse_xcall_command(). - Use bitmap for check_xcall_prog(). - Fix global-out-of-bounds KASAN bug in xcall_prog_register(). Changes in v8: - Fix no reigister and unregister null-ptr-ref bug by find prog first. - Fix xcall_comm_write write empty null-ptr-ref bug in memdup_user_nul(). - Add empty owner, exceed 64 prog name and repeat syscall check in check_prog(). - Move INIT_LIST_HEAD(&prog->list) to xcall_prog_register() instead of kernel module. Changes in v7: - Fix alternative bug in sync ventry. - Add "xcall" limit for xcall2.0 and hardware xcall. Changes in v6: - Add "xcall=debug" debug mode to use the "fast syscall" for every system call. - Use alternative to reduce the baseline performance noise floor when not set "xcall" on the kernel cmdline - Move binary_path out from xcall struct, and add to xcall_comm struct. - Fix1. insert_xcall_locked() check both "name" and "binary" to avoid repeated attach same name of xcall. - Fix2. Check if it is an executable file for the binary path. - Fix3. Check if it is an absolute path for the binary path. - Fix4. Remove the extra free_xcall_comm(info) in default branch in proc_xcall_command(). - Fix5. Add zero syscall hijack check for xcall_prog_register(). - Use __arm64_sys_ni_syscall() instead of define inv_xcall(). - Replace the -ENOSYS return value with -EINVAL, to avoid the warning. Changes in v5: - Fix build problem. - el0t_64_sync_ventry jump to kernel_ventry to do VMAP_STACK. - Some cleanups. - Merge the three refactor patch. Changes in v4: - Reuse uprobe_write_opcode() instead of use __replace_page() and copy_to_page(). - Handle error for uprobe_write_opcode(). - Support xcall1.0 before 920G. - Change xcall1.0 bitmap to byte array to save check insns. - Use percpu variable to save check insns for xcall1.0. - A little cleanup. Changes in v3: - Add validity checks during xcall registration to prevent out-of-bounds access and null pointer dereferences. - Extract __replace_page() and copy_to_page() from uprobe, to avoid code duplication. - Replace with new compatible refactored code. - Remove unnecessary member, such as old_name. Jinjie Ruan (2): xcall2.0: Support xcall1.0 for hardware xcall openeuler_defconfig: Enable CONFIG_DYNAMIC_XCALL by default Liao Chang (6): xcall2.0: Add userspace proc interface xcall2.0: Add xcall module register interface xcall2.0: Add xcall_area xcall2.0: Hajack syscall with dynamic instruciton replace xcall: Rework the early exception vector of XCALL and SYNC xcall2.0: Add a basic testcase Xinyu Zheng (1): xcall2.0: Introduce xcall epollwait prefetch feature Yipeng Zou (1): xcall: Add debug mode to force fast syscall for all threads arch/arm64/Kconfig.turbo | 13 + arch/arm64/configs/openeuler_defconfig | 1 + arch/arm64/include/asm/exception.h | 4 +- arch/arm64/include/asm/mmu_context.h | 7 - arch/arm64/include/asm/xcall.h | 155 +++--- arch/arm64/kernel/cpufeature.c | 79 +-- arch/arm64/kernel/entry-common.c | 28 +- arch/arm64/kernel/entry.S | 86 +--- arch/arm64/kernel/probes/uprobes.c | 6 + arch/arm64/kernel/process.c | 5 + arch/arm64/kernel/syscall.c | 14 + arch/arm64/kernel/xcall/Makefile | 3 +- arch/arm64/kernel/xcall/core.c | 410 +++++++++++++++ arch/arm64/kernel/xcall/entry.S | 139 ++++- arch/arm64/kernel/xcall/proc.c | 238 +++++++++ arch/arm64/kernel/xcall/xcall.c | 68 +-- arch/arm64/kvm/sys_regs.c | 1 + drivers/staging/Kconfig | 2 + drivers/staging/Makefile | 1 + drivers/staging/xcall/Kconfig | 19 + drivers/staging/xcall/Makefile | 1 + drivers/staging/xcall/dynamic_xcall_test.c | 89 ++++ drivers/staging/xcall/prefetch.c | 573 +++++++++++++++++++++ fs/proc/proc_xcall.c | 144 ++---- include/linux/mm_types.h | 4 + include/linux/xcall.h | 51 ++ kernel/events/uprobes.c | 23 + kernel/fork.c | 3 + mm/mmap.c | 14 +- 29 files changed, 1807 insertions(+), 374 deletions(-) create mode 100644 arch/arm64/kernel/xcall/core.c create mode 100644 arch/arm64/kernel/xcall/proc.c create mode 100644 drivers/staging/xcall/Kconfig create mode 100644 drivers/staging/xcall/Makefile create mode 100644 drivers/staging/xcall/dynamic_xcall_test.c create mode 100644 drivers/staging/xcall/prefetch.c create mode 100644 include/linux/xcall.h -- 2.34.1

2 11

[PATCH OLK-6.6 0/8] xsched: XCU Partition
by Zicheng Qu 17 Nov '25

17 Nov '25

Alekseev Dmitry (2): xsched: Add XCU control group implementation and its backend in xsched CFS xsched: Add support for CFS quota for cgroups Konstantin Meskhidze (6): xsched: Add base vstream support xcu: Add base NPU driver support xsched: Introduce vstream management xsched: Add basic scheduler core support xsched: Add xsched RT class xsched: Add xsched CFS class arch/arm/include/uapi/asm/unistd.h | 1 + arch/arm64/configs/openeuler_defconfig | 1 + arch/powerpc/include/uapi/asm/unistd.h | 1 + arch/x86/configs/openeuler_defconfig | 1 + arch/x86/entry/syscalls/syscall_64.tbl | 2 +- arch/x86/include/uapi/asm/unistd.h | 1 + drivers/Makefile | 1 + drivers/xcu/Makefile | 2 + drivers/xcu/xcu_group.c | 380 ++++++++++++ include/linux/cgroup_subsys.h | 4 + include/linux/syscalls.h | 2 + include/linux/vstream.h | 91 +++ include/linux/xcu_group.h | 96 +++ include/linux/xsched.h | 514 ++++++++++++++++ include/uapi/asm-generic/unistd.h | 6 +- include/uapi/linux/xcu_vstream.h | 77 +++ init/Kconfig | 1 + kernel/Makefile | 1 + kernel/cgroup/cgroup.c | 2 +- kernel/xsched/Kconfig | 85 +++ kernel/xsched/Makefile | 9 + kernel/xsched/cfs.c | 237 ++++++++ kernel/xsched/cfs_quota.c | 98 ++++ kernel/xsched/cgroup.c | 775 +++++++++++++++++++++++++ kernel/xsched/core.c | 526 +++++++++++++++++ kernel/xsched/rt.c | 281 +++++++++ kernel/xsched/vstream.c | 674 +++++++++++++++++++++ 27 files changed, 3865 insertions(+), 4 deletions(-) create mode 100644 drivers/xcu/Makefile create mode 100644 drivers/xcu/xcu_group.c create mode 100644 include/linux/vstream.h create mode 100644 include/linux/xcu_group.h create mode 100644 include/linux/xsched.h create mode 100644 include/uapi/linux/xcu_vstream.h create mode 100644 kernel/xsched/Kconfig create mode 100644 kernel/xsched/Makefile create mode 100644 kernel/xsched/cfs.c create mode 100644 kernel/xsched/cfs_quota.c create mode 100644 kernel/xsched/cgroup.c create mode 100644 kernel/xsched/core.c create mode 100644 kernel/xsched/rt.c create mode 100644 kernel/xsched/vstream.c -- 2.34.1

2 9

[PATCH OLK-6.6 v2 0/2] mm: Fix shmem build and numa fault counting errors
by Ze Zuo 17 Nov '25

17 Nov '25

1. Fix CONFIG_SWAP build errors introduced by ed205f43 ("mm: convert swap_cluster_readahead and swap_vma_readahead to return a folio") 2. Fix numa fault counting error introduced by 3bfa35c ("mm/numa: no task_numa_fault() call if PTE is changed") v1 -> v2: - add inline for swap_cluster_readahead. - fix some commit message for checkformat. Ze Zuo (2): mm: fix shmem build errors with CONFIG_SWAP disable mm: fix nr_pages counting for folio in task_numa_fault mm/memory.c | 4 ++-- mm/swap.h | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) -- 2.25.1

2 3

[PATCH OLK-6.6] uio_hv_generic: Let userspace take care of interrupt mask
by Xia Fukun 17 Nov '25

17 Nov '25

From: Naman Jain <namjain(a)linux.microsoft.com> stable inclusion from stable-v6.6.112 commit 2af39ab5e6dc46b835a52e80a22d0cad430985e3 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/ID3WG6 CVE: CVE-2025-40048 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit b15b7d2a1b09ef5428a8db260251897405a19496 upstream. Remove the logic to set interrupt mask by default in uio_hv_generic driver as the interrupt mask value is supposed to be controlled completely by the user space. If the mask bit gets changed by the driver, concurrently with user mode operating on the ring, the mask bit may be set when it is supposed to be clear, and the user-mode driver will miss an interrupt which will cause a hang. For eg- when the driver sets inbound ring buffer interrupt mask to 1, the host does not interrupt the guest on the UIO VMBus channel. However, setting the mask does not prevent the host from putting a message in the inbound ring buffer. So let’s assume that happens, the host puts a message into the ring buffer but does not interrupt. Subsequently, the user space code in the guest sets the inbound ring buffer interrupt mask to 0, saying “Hey, I’m ready for interrupts”. User space code then calls pread() to wait for an interrupt. Then one of two things happens: * The host never sends another message. So the pread() waits forever. * The host does send another message. But because there’s already a message in the ring buffer, it doesn’t generate an interrupt. This is the correct behavior, because the host should only send an interrupt when the inbound ring buffer transitions from empty to not-empty. Adding an additional message to a ring buffer that is not empty is not supposed to generate an interrupt on the guest. Since the guest is waiting in pread() and not removing messages from the ring buffer, the pread() waits forever. This could be easily reproduced in hv_fcopy_uio_daemon if we delay setting interrupt mask to 0. Similarly if hv_uio_channel_cb() sets the interrupt_mask to 1, there’s a race condition. Once user space empties the inbound ring buffer, but before user space sets interrupt_mask to 0, the host could put another message in the ring buffer but it wouldn’t interrupt. Then the next pread() would hang. Fix these by removing all instances where interrupt_mask is changed, while keeping the one in set_event() unchanged to enable userspace control the interrupt mask by writing 0/1 to /dev/uioX. Fixes: 95096f2fbd10 ("uio-hv-generic: new userspace i/o driver for VMBus") Suggested-by: John Starks <jostarks(a)microsoft.com> Signed-off-by: Naman Jain <namjain(a)linux.microsoft.com> Cc: stable(a)vger.kernel.org Reviewed-by: Michael Kelley <mhklinux(a)outlook.com> Reviewed-by: Long Li <longli(a)microsoft.com> Reviewed-by: Tianyu Lan <tiala(a)microsoft.com> Tested-by: Tianyu Lan <tiala(a)microsoft.com> Link: https://lore.kernel.org/r/20250828044200.492030-1-namjain@linux.microsoft.c… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Xia Fukun <xiafukun(a)huawei.com> --- drivers/uio/uio_hv_generic.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/drivers/uio/uio_hv_generic.c b/drivers/uio/uio_hv_generic.c index a2c7abf8c289..7301da7244e8 100644 --- a/drivers/uio/uio_hv_generic.c +++ b/drivers/uio/uio_hv_generic.c @@ -96,7 +96,6 @@ static void hv_uio_channel_cb(void *context) struct hv_device *hv_dev = chan->device_obj; struct hv_uio_private_data *pdata = hv_get_drvdata(hv_dev); - chan->inbound.ring_buffer->interrupt_mask = 1; virt_mb(); uio_event_notify(&pdata->info); @@ -173,8 +172,6 @@ hv_uio_new_channel(struct vmbus_channel *new_sc) return; } - /* Disable interrupts on sub channel */ - new_sc->inbound.ring_buffer->interrupt_mask = 1; set_channel_read_mode(new_sc, HV_CALL_ISR); ret = sysfs_create_bin_file(&new_sc->kobj, &ring_buffer_bin_attr); @@ -218,9 +215,7 @@ hv_uio_open(struct uio_info *info, struct inode *inode) ret = vmbus_connect_ring(dev->channel, hv_uio_channel_cb, dev->channel); - if (ret == 0) - dev->channel->inbound.ring_buffer->interrupt_mask = 1; - else + if (ret) atomic_dec(&pdata->refcnt); return ret; -- 2.34.1

2 1

[PATCH OLK-5.10] usb: dwc3: gadget: check that event count does not exceed event buffer length
by Xia Fukun 17 Nov '25

17 Nov '25

From: Frode Isaksen <frode(a)meta.com> stable inclusion from stable-v5.10.237 commit b43225948b231b3f331194010f84512bee4d9f59 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IC6BOI CVE: CVE-2025-37810 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 63ccd26cd1f6600421795f6ca3e625076be06c9f upstream. The event count is read from register DWC3_GEVNTCOUNT. There is a check for the count being zero, but not for exceeding the event buffer length. Check that event count does not exceed event buffer length, avoiding an out-of-bounds access when memcpy'ing the event. Crash log: Unable to handle kernel paging request at virtual address ffffffc0129be000 pc : __memcpy+0x114/0x180 lr : dwc3_check_event_buf+0xec/0x348 x3 : 0000000000000030 x2 : 000000000000dfc4 x1 : ffffffc0129be000 x0 : ffffff87aad60080 Call trace: __memcpy+0x114/0x180 dwc3_interrupt+0x24/0x34 Signed-off-by: Frode Isaksen <frode(a)meta.com> Fixes: 72246da40f37 ("usb: Introduce DesignWare USB3 DRD Driver") Cc: stable <stable(a)kernel.org> Acked-by: Thinh Nguyen <Thinh.Nguyen(a)synopsys.com> Link: https://lore.kernel.org/r/20250403072907.448524-1-fisaksen@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Xia Fukun <xiafukun(a)huawei.com> --- drivers/usb/dwc3/gadget.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 550eae39a63d..f29c6ecef044 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -3856,6 +3856,12 @@ static irqreturn_t dwc3_check_event_buf(struct dwc3_event_buffer *evt) if (!count) return IRQ_NONE; + if (count > evt->length) { + dev_err_ratelimited(dwc->dev, "invalid count(%u) > evt->length(%u)\n", + count, evt->length); + return IRQ_NONE; + } + evt->count = count; evt->flags |= DWC3_EVENT_PENDING; -- 2.34.1

2 1

[openeuler:OLK-6.6 3198/3198] mm/memory.c:2805: warning: Function parameter or member 'page_shift' not described in '__remap_pfn_range'
by kernel test robot 17 Nov '25

17 Nov '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: ebdf6593446d169605a079430b44abc212c60eb6 commit: 9058fc5efa4aa44340385ca69fb4ef016931af50 [3198/3198] !18961 mm: add huge pfnmap support for remap_pfn_range() config: x86_64-allnoconfig (https://download.01.org/0day-ci/archive/20251117/202511171556.lxjrabpR-lkp@…) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251117/202511171556.lxjrabpR-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/202511171556.lxjrabpR-lkp@intel.com/ All warnings (new ones prefixed by >>): >> mm/memory.c:2805: warning: Function parameter or member 'page_shift' not described in '__remap_pfn_range' >> mm/memory.c:2805: warning: expecting prototype for remap_pfn_range(). Prototype was for __remap_pfn_range() instead vim +2805 mm/memory.c 923e224a12462d Yin Tirui 2025-11-13 2789 74ffa5a3e68504 Christoph Hellwig 2021-04-29 2790 /** 74ffa5a3e68504 Christoph Hellwig 2021-04-29 2791 * remap_pfn_range - remap kernel memory to userspace 74ffa5a3e68504 Christoph Hellwig 2021-04-29 2792 * @vma: user vma to map to 74ffa5a3e68504 Christoph Hellwig 2021-04-29 2793 * @addr: target page aligned user address to start at 74ffa5a3e68504 Christoph Hellwig 2021-04-29 2794 * @pfn: page frame number of kernel physical memory address 74ffa5a3e68504 Christoph Hellwig 2021-04-29 2795 * @size: size of mapping area 74ffa5a3e68504 Christoph Hellwig 2021-04-29 2796 * @prot: page protection flags for this mapping 74ffa5a3e68504 Christoph Hellwig 2021-04-29 2797 * 74ffa5a3e68504 Christoph Hellwig 2021-04-29 2798 * Note: this is only safe if the mm semaphore is held when called. 74ffa5a3e68504 Christoph Hellwig 2021-04-29 2799 * 74ffa5a3e68504 Christoph Hellwig 2021-04-29 2800 * Return: %0 on success, negative error code otherwise. 74ffa5a3e68504 Christoph Hellwig 2021-04-29 2801 */ 923e224a12462d Yin Tirui 2025-11-13 2802 int __remap_pfn_range(struct vm_area_struct *vma, unsigned long addr, 923e224a12462d Yin Tirui 2025-11-13 2803 unsigned long pfn, unsigned long size, pgprot_t prot, 923e224a12462d Yin Tirui 2025-11-13 2804 unsigned int page_shift) 74ffa5a3e68504 Christoph Hellwig 2021-04-29 @2805 { 74ffa5a3e68504 Christoph Hellwig 2021-04-29 2806 int err; 74ffa5a3e68504 Christoph Hellwig 2021-04-29 2807 74ffa5a3e68504 Christoph Hellwig 2021-04-29 2808 err = track_pfn_remap(vma, &prot, pfn, addr, PAGE_ALIGN(size)); 2ab640379a0ab4 venkatesh.pallipadi(a)intel.com 2008-12-18 2809 if (err) 74ffa5a3e68504 Christoph Hellwig 2021-04-29 2810 return -EINVAL; 2ab640379a0ab4 venkatesh.pallipadi(a)intel.com 2008-12-18 2811 923e224a12462d Yin Tirui 2025-11-13 2812 err = __remap_pfn_range_notrack(vma, addr, pfn, size, prot, page_shift); 74ffa5a3e68504 Christoph Hellwig 2021-04-29 2813 if (err) 68f48381d7fdd1 Suren Baghdasaryan 2023-01-26 2814 untrack_pfn(vma, pfn, PAGE_ALIGN(size), true); ^1da177e4c3f41 Linus Torvalds 2005-04-16 2815 return err; ^1da177e4c3f41 Linus Torvalds 2005-04-16 2816 } 923e224a12462d Yin Tirui 2025-11-13 2817 :::::: The code at line 2805 was first introduced by commit :::::: 74ffa5a3e68504dd289135b1cf0422c19ffb3f2e mm: add remap_pfn_range_notrack :::::: TO: Christoph Hellwig <hch(a)lst.de> :::::: CC: Linus Torvalds <torvalds(a)linux-foundation.org> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH OLK-6.6 0/8] xsched: XCU Partition
by Zicheng Qu 17 Nov '25

17 Nov '25

Alekseev Dmitry (2): xsched: Add XCU control group implementation and its backend in xsched CFS xsched: Add support for CFS quota for cgroups Konstantin Meskhidze (6): xsched: Add base vstream support xcu: Add base NPU driver support xsched: Introduce vstream management xsched: Add basic scheduler core support xsched: Add xsched RT class xsched: Add xsched CFS class arch/arm/include/uapi/asm/unistd.h | 1 + arch/arm64/configs/openeuler_defconfig | 1 + arch/powerpc/include/uapi/asm/unistd.h | 1 + arch/x86/configs/openeuler_defconfig | 1 + arch/x86/entry/syscalls/syscall_64.tbl | 2 +- arch/x86/include/uapi/asm/unistd.h | 1 + drivers/Makefile | 1 + drivers/xcu/Makefile | 2 + drivers/xcu/xcu_group.c | 380 ++++++++++++ include/linux/cgroup_subsys.h | 4 + include/linux/syscalls.h | 2 + include/linux/vstream.h | 91 +++ include/linux/xcu_group.h | 96 +++ include/linux/xsched.h | 514 ++++++++++++++++ include/uapi/asm-generic/unistd.h | 6 +- include/uapi/linux/xcu_vstream.h | 77 +++ init/Kconfig | 1 + kernel/Makefile | 1 + kernel/cgroup/cgroup.c | 2 +- kernel/xsched/Kconfig | 85 +++ kernel/xsched/Makefile | 7 + kernel/xsched/cfs.c | 237 ++++++++ kernel/xsched/cfs_quota.c | 98 ++++ kernel/xsched/cgroup.c | 775 +++++++++++++++++++++++++ kernel/xsched/core.c | 526 +++++++++++++++++ kernel/xsched/rt.c | 281 +++++++++ kernel/xsched/vstream.c | 674 +++++++++++++++++++++ 27 files changed, 3863 insertions(+), 4 deletions(-) create mode 100644 drivers/xcu/Makefile create mode 100644 drivers/xcu/xcu_group.c create mode 100644 include/linux/vstream.h create mode 100644 include/linux/xcu_group.h create mode 100644 include/linux/xsched.h create mode 100644 include/uapi/linux/xcu_vstream.h create mode 100644 kernel/xsched/Kconfig create mode 100644 kernel/xsched/Makefile create mode 100644 kernel/xsched/cfs.c create mode 100644 kernel/xsched/cfs_quota.c create mode 100644 kernel/xsched/cgroup.c create mode 100644 kernel/xsched/core.c create mode 100644 kernel/xsched/rt.c create mode 100644 kernel/xsched/vstream.c -- 2.34.1

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[openeuler:OLK-6.6 3198/3198] mm/memory.c:2802:5: warning: no previous prototype for '__remap_pfn_range'
by kernel test robot 17 Nov '25

17 Nov '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: ebdf6593446d169605a079430b44abc212c60eb6 commit: 923e224a12462d640fa37f3069c6bfafd378ac3b [3198/3198] mm: introduce remap_pfn_range_try_pmd() for PMD-level hugepage mapping config: arm64-allnoconfig (https://download.01.org/0day-ci/archive/20251117/202511171413.zOn7Hte0-lkp@…) compiler: aarch64-linux-gcc (GCC) 15.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251117/202511171413.zOn7Hte0-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/202511171413.zOn7Hte0-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from mm/memory.c:68: include/linux/migrate.h:102:9: error: expected identifier or '(' before '{' token 102 | { return -EINVAL; } | ^ >> mm/memory.c:2802:5: warning: no previous prototype for '__remap_pfn_range' [-Wmissing-prototypes] 2802 | int __remap_pfn_range(struct vm_area_struct *vma, unsigned long addr, | ^~~~~~~~~~~~~~~~~ mm/memory.c: In function 'do_numa_page': mm/memory.c:5614:24: warning: variable 'nr_pages' set but not used [-Wunused-but-set-variable] 5614 | int flags = 0, nr_pages; | ^~~~~~~~ include/linux/migrate.h: At top level: include/linux/migrate.h:98:19: warning: 'isolate_and_migrate_folios' declared 'static' but never defined [-Wunused-function] 98 | static inline int isolate_and_migrate_folios(struct folio **folios, unsigned int nr_folios, | ^~~~~~~~~~~~~~~~~~~~~~~~~~ Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for ARCH_SUPPORTS_SCHED_SOFT_QUOTA Depends on [n]: CGROUPS [=n] Selected by [y]: - ARM64 [=y] WARNING: unmet direct dependencies detected for HALTPOLL_CPUIDLE Depends on [n]: CPU_IDLE [=n] && ARCH_CPUIDLE_HALTPOLL [=y] && ARCH_HAS_OPTIMIZED_POLL [=y] Selected by [y]: - ARM64 [=y] vim +/__remap_pfn_range +2802 mm/memory.c 2789 2790 /** 2791 * remap_pfn_range - remap kernel memory to userspace 2792 * @vma: user vma to map to 2793 * @addr: target page aligned user address to start at 2794 * @pfn: page frame number of kernel physical memory address 2795 * @size: size of mapping area 2796 * @prot: page protection flags for this mapping 2797 * 2798 * Note: this is only safe if the mm semaphore is held when called. 2799 * 2800 * Return: %0 on success, negative error code otherwise. 2801 */ > 2802 int __remap_pfn_range(struct vm_area_struct *vma, unsigned long addr, 2803 unsigned long pfn, unsigned long size, pgprot_t prot, 2804 unsigned int page_shift) 2805 { 2806 int err; 2807 2808 err = track_pfn_remap(vma, &prot, pfn, addr, PAGE_ALIGN(size)); 2809 if (err) 2810 return -EINVAL; 2811 2812 err = __remap_pfn_range_notrack(vma, addr, pfn, size, prot, page_shift); 2813 if (err) 2814 untrack_pfn(vma, pfn, PAGE_ALIGN(size), true); 2815 return err; 2816 } 2817 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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