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[PATCH OLK-6.6 0/2] Fix unexpected behavior in resctrl mounting
by Quanmin Yan 08 Dec '25

08 Dec '25

When mounting resctrl, some options that should be present are not shown in the mount list. Additionally, there is a lack of validation for the effectiveness of mount parameters when mounting resctrl. This patch set fixes the aforementioned unexpected behavior during resctrl mounting. Quanmin Yan (2): fs/resctrl: Fix resctrl mount options display in mount list fs/resctrl: Prevent mounting with unsupported options fs/resctrl/rdtgroup.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) -- 2.43.0

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[openeuler:OLK-6.6 3482/3482] kernel/xsched/cgroup.c:30:21: sparse: sparse: symbol 'root_xcg' was not declared. Should it be static?
by kernel test robot 08 Dec '25

08 Dec '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 79aa4f2e99baed837a6933aa6b1a852197d30b91 commit: 43bbefc53356009d3603faa2c6e6a2858f724e4d [3482/3482] xsched: Add XCU control group implementation and its backend in xsched CFS config: arm64-randconfig-r111-20251206 (https://download.01.org/0day-ci/archive/20251208/202512081339.m9dijSrU-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/20251208/202512081339.m9dijSrU-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/202512081339.m9dijSrU-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> kernel/xsched/cgroup.c:30:21: sparse: sparse: symbol 'root_xcg' was not declared. Should it be static? >> kernel/xsched/cgroup.c:368:6: sparse: sparse: symbol 'xcu_move_task' was not declared. Should it be static? kernel/xsched/cgroup.c:368:6: sparse: sparse: context imbalance in 'xcu_move_task' - different lock contexts for basic block vim +/root_xcg +30 kernel/xsched/cgroup.c 28 29 static struct xsched_group root_xsched_group; > 30 struct xsched_group *root_xcg = &root_xsched_group; 31 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH OLK-5.10] ext4: xattr: fix null pointer deref in ext4_raw_inode()
by Yongjian Sun 08 Dec '25

08 Dec '25

From: Karina Yankevich <k.yankevich(a)omp.ru> mainline inclusion from mainline-v6.19-rc1 commit b97cb7d6a051aa6ebd57906df0e26e9e36c26d14 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IDB04G Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- If ext4_get_inode_loc() fails (e.g. if it returns -EFSCORRUPTED), iloc.bh will remain set to NULL. Since ext4_xattr_inode_dec_ref_all() lacks error checking, this will lead to a null pointer dereference in ext4_raw_inode(), called right after ext4_get_inode_loc(). Found by Linux Verification Center (linuxtesting.org) with SVACE. Fixes: c8e008b60492 ("ext4: ignore xattrs past end") Cc: stable(a)kernel.org Signed-off-by: Karina Yankevich <k.yankevich(a)omp.ru> Reviewed-by: Sergey Shtylyov <s.shtylyov(a)omp.ru> Reviewed-by: Baokun Li <libaokun1(a)huawei.com> Message-ID: <20251022093253.3546296-1-k.yankevich(a)omp.ru> Signed-off-by: Theodore Ts'o <tytso(a)mit.edu> Signed-off-by: Yongjian Sun <sunyongjian1(a)huawei.com> --- fs/ext4/xattr.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c index 3e5efa68698e..fd44b8c0c4af 100644 --- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -1133,7 +1133,11 @@ ext4_xattr_inode_dec_ref_all(handle_t *handle, struct inode *parent, if (block_csum) end = (void *)bh->b_data + bh->b_size; else { - ext4_get_inode_loc(parent, &iloc); + err = ext4_get_inode_loc(parent, &iloc); + if (err) { + EXT4_ERROR_INODE(parent, "parent inode loc (error %d)", err); + return; + } end = (void *)ext4_raw_inode(&iloc) + EXT4_SB(parent->i_sb)->s_inode_size; } -- 2.39.2

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[PATCH OLK-6.6] ext4: xattr: fix null pointer deref in ext4_raw_inode()
by Yongjian Sun 08 Dec '25

08 Dec '25

From: Karina Yankevich <k.yankevich(a)omp.ru> mainline inclusion from mainline-v6.19-rc1 commit b97cb7d6a051aa6ebd57906df0e26e9e36c26d14 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IDB04G Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- If ext4_get_inode_loc() fails (e.g. if it returns -EFSCORRUPTED), iloc.bh will remain set to NULL. Since ext4_xattr_inode_dec_ref_all() lacks error checking, this will lead to a null pointer dereference in ext4_raw_inode(), called right after ext4_get_inode_loc(). Found by Linux Verification Center (linuxtesting.org) with SVACE. Fixes: c8e008b60492 ("ext4: ignore xattrs past end") Cc: stable(a)kernel.org Signed-off-by: Karina Yankevich <k.yankevich(a)omp.ru> Reviewed-by: Sergey Shtylyov <s.shtylyov(a)omp.ru> Reviewed-by: Baokun Li <libaokun1(a)huawei.com> Message-ID: <20251022093253.3546296-1-k.yankevich(a)omp.ru> Signed-off-by: Theodore Ts'o <tytso(a)mit.edu> Signed-off-by: Yongjian Sun <sunyongjian1(a)huawei.com> --- fs/ext4/xattr.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c index 6ef8820625b9..5009fdcfe150 100644 --- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -1184,7 +1184,11 @@ ext4_xattr_inode_dec_ref_all(handle_t *handle, struct inode *parent, if (block_csum) end = (void *)bh->b_data + bh->b_size; else { - ext4_get_inode_loc(parent, &iloc); + err = ext4_get_inode_loc(parent, &iloc); + if (err) { + EXT4_ERROR_INODE(parent, "parent inode loc (error %d)", err); + return; + } end = (void *)ext4_raw_inode(&iloc) + EXT4_SB(parent->i_sb)->s_inode_size; } -- 2.39.2

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[openeuler:OLK-6.6 3482/3482] kernel/xsched/cfs.c:22:6: sparse: sparse: symbol 'xs_rq_add' was not declared. Should it be static?
by kernel test robot 08 Dec '25

08 Dec '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 4b48fa45408a2757255bdd0c640c1f693b424fe4 commit: 024b851138509252da4531dc2e69b1e8df50fd3b [3482/3482] xsched: Add xsched CFS class config: arm64-randconfig-r111-20251206 (https://download.01.org/0day-ci/archive/20251208/202512081156.izr1Nkua-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/20251208/202512081156.izr1Nkua-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/202512081156.izr1Nkua-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> kernel/xsched/cfs.c:22:6: sparse: sparse: symbol 'xs_rq_add' was not declared. Should it be static? >> kernel/xsched/cfs.c:45:6: sparse: sparse: symbol 'xs_rq_remove' was not declared. Should it be static? >> kernel/xsched/cfs.c:159:6: sparse: sparse: symbol 'rq_init_fair' was not declared. Should it be static? >> kernel/xsched/cfs.c:164:6: sparse: sparse: symbol 'xse_init_fair' was not declared. Should it be static? >> kernel/xsched/cfs.c:169:6: sparse: sparse: symbol 'xse_deinit_fair' was not declared. Should it be static? vim +/xs_rq_add +22 kernel/xsched/cfs.c 18 19 #define CFS_INNER_RQ_EMPTY(cfs_xse) \ 20 ((cfs_xse)->xruntime == XSCHED_TIME_INF) 21 > 22 void xs_rq_add(struct xsched_entity_cfs *xse) 23 { 24 struct xsched_rq_cfs *cfs_rq = xse->cfs_rq; 25 struct rb_node **link = &cfs_rq->ctx_timeline.rb_root.rb_node; 26 struct rb_node *parent = NULL; 27 struct xsched_entity_cfs *entry; 28 bool leftmost = true; 29 30 while (*link) { 31 parent = *link; 32 entry = rb_entry(parent, struct xsched_entity_cfs, run_node); 33 if (xse->xruntime <= entry->xruntime) { 34 link = &parent->rb_left; 35 } else { 36 link = &parent->rb_right; 37 leftmost = false; 38 } 39 } 40 41 rb_link_node(&xse->run_node, parent, link); 42 rb_insert_color_cached(&xse->run_node, &cfs_rq->ctx_timeline, leftmost); 43 } 44 > 45 void xs_rq_remove(struct xsched_entity_cfs *xse) 46 { 47 struct xsched_rq_cfs *cfs_rq = xse->cfs_rq; 48 49 rb_erase_cached(&xse->run_node, &cfs_rq->ctx_timeline); 50 } 51 52 /** 53 * xs_cfs_rq_update() - Update entity's runqueue position with new xruntime 54 */ 55 static void xs_cfs_rq_update(struct xsched_entity_cfs *xse_cfs, u64 new_xrt) 56 { 57 xs_rq_remove(xse_cfs); 58 xse_cfs->xruntime = new_xrt; 59 xs_rq_add(xse_cfs); 60 } 61 62 static inline struct xsched_entity_cfs * 63 xs_pick_first(struct xsched_rq_cfs *cfs_rq) 64 { 65 struct xsched_entity_cfs *xse_cfs; 66 struct rb_node *left = rb_first_cached(&cfs_rq->ctx_timeline); 67 68 if (!left) 69 return NULL; 70 71 xse_cfs = rb_entry(left, struct xsched_entity_cfs, run_node); 72 return xse_cfs; 73 } 74 75 /** 76 * xs_update() - Account xruntime and runtime metrics. 77 * @xse_cfs: Point to CFS scheduling entity. 78 * @delta: Execution time in last period 79 */ 80 static void xs_update(struct xsched_entity_cfs *xse_cfs, u64 delta) 81 { 82 u64 new_xrt = xse_cfs->xruntime + delta * xse_cfs->weight; 83 84 xs_cfs_rq_update(xse_cfs, new_xrt); 85 xse_cfs->sum_exec_runtime += delta; 86 } 87 88 /* 89 * Xsched Fair class methods 90 * For rq manipulation we rely on root runqueue lock already acquired in core. 91 * Access xsched_group_xcu_priv requires no locks because one thread per XCU. 92 */ 93 static void dequeue_ctx_fair(struct xsched_entity *xse) 94 { 95 struct xsched_cu *xcu = xse->xcu; 96 struct xsched_entity_cfs *first; 97 struct xsched_entity_cfs *xse_cfs = &xse->cfs; 98 99 xs_rq_remove(xse_cfs); 100 101 first = xs_pick_first(&xcu->xrq.cfs); 102 xcu->xrq.cfs.min_xruntime = (first) ? first->xruntime : XSCHED_TIME_INF; 103 } 104 105 /** 106 * enqueue_ctx_fair() - Add context to the runqueue 107 * @xse: xsched entity of context 108 * @xcu: executor 109 * 110 * In contrary to enqueue_task it is called once on context init. 111 * Although groups reside in tree, their nodes not counted in nr_running. 112 * The xruntime of a group xsched entitry represented by min xruntime inside. 113 */ 114 static void enqueue_ctx_fair(struct xsched_entity *xse, struct xsched_cu *xcu) 115 { 116 struct xsched_entity_cfs *first; 117 struct xsched_rq_cfs *rq; 118 struct xsched_entity_cfs *xse_cfs = &xse->cfs; 119 120 rq = xse_cfs->cfs_rq = &xcu->xrq.cfs; 121 122 /* If no XSE of only empty groups */ 123 if (xs_pick_first(rq) == NULL || rq->min_xruntime == XSCHED_TIME_INF) 124 rq->min_xruntime = xse_cfs->xruntime; 125 else 126 xse_cfs->xruntime = max(xse_cfs->xruntime, rq->min_xruntime); 127 128 xs_rq_add(xse_cfs); 129 130 first = xs_pick_first(&xcu->xrq.cfs); 131 xcu->xrq.cfs.min_xruntime = (first) ? first->xruntime : XSCHED_TIME_INF; 132 } 133 134 static struct xsched_entity *pick_next_ctx_fair(struct xsched_cu *xcu) 135 { 136 struct xsched_entity_cfs *xse; 137 struct xsched_rq_cfs *rq = &xcu->xrq.cfs; 138 139 xse = xs_pick_first(rq); 140 if (!xse) 141 return NULL; 142 143 return container_of(xse, struct xsched_entity, cfs); 144 } 145 146 static inline bool 147 xs_should_preempt_fair(struct xsched_entity *xse) 148 { 149 return (atomic_read(&xse->submitted_one_kick) >= XSCHED_CFS_KICK_SLICE); 150 } 151 152 static void put_prev_ctx_fair(struct xsched_entity *xse) 153 { 154 struct xsched_entity_cfs *prev = &xse->cfs; 155 156 xs_update(prev, xse->last_exec_runtime); 157 } 158 > 159 void rq_init_fair(struct xsched_cu *xcu) 160 { 161 xcu->xrq.cfs.ctx_timeline = RB_ROOT_CACHED; 162 } 163 > 164 void xse_init_fair(struct xsched_entity *xse) 165 { 166 xse->cfs.weight = XSCHED_CFS_WEIGHT_DFLT; 167 } 168 > 169 void xse_deinit_fair(struct xsched_entity *xse) 170 { 171 /* TODO Cgroup exit */ 172 } 173 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH OLK-6.6] mm/numa_remote: fix wild-memory-access in numa_remote_hugetlb_nowatermark
by Jinjiang Tu 08 Dec '25

08 Dec '25

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IDB01L ---------------------------------------- NUMA_NO_NODE will be passed to numa_remote_hugetlb_nowatermark() if we echo xx > /proc/sys/vm/nr_hugepages. When hugetlb_nowatermark is enabled, numa_remote_hugetlb_nowatermark() will trigger wild-memory-access. To fix it, check nid whether is NUMA_NO_NODE before calling numa_remote_hugetlb_nowatermark(). Fixes: 3a1587ef612c ("mm/numa_remote: introduce hugetlb_nowatermark mode for remote node") Signed-off-by: Jinjiang Tu <tujinjiang(a)huawei.com> --- mm/hugetlb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index b00dda9db0c9..1a98b599c0b0 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -3944,7 +3944,7 @@ static int set_max_huge_pages(struct hstate *h, unsigned long count, int nid, /* yield cpu to avoid soft lockup */ cond_resched(); - if (numa_remote_hugetlb_nowatermark(nid) && !drained && (nid != NUMA_NO_NODE)) { + if ((nid != NUMA_NO_NODE) && numa_remote_hugetlb_nowatermark(nid) && !drained) { hugetlb_drain_remote_pcp(h, nid); drained = true; } -- 2.43.0

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[PATCH OLK-5.10] KVM: arm64: Prevent access to vCPU events before init
by Pu Lehui 08 Dec '25

08 Dec '25

From: Oliver Upton <oliver.upton(a)linux.dev> mainline inclusion from mainline-v6.18-rc2 commit 0aa1b76fe1429629215a7c79820e4b96233ac4a3 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/ID4A6U CVE: CVE-2025-40102 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Another day, another syzkaller bug. KVM erroneously allows userspace to pend vCPU events for a vCPU that hasn't been initialized yet, leading to KVM interpreting a bunch of uninitialized garbage for routing / injecting the exception. In one case the injection code and the hyp disagree on whether the vCPU has a 32bit EL1 and put the vCPU into an illegal mode for AArch64, tripping the BUG() in exception_target_el() during the next injection: kernel BUG at arch/arm64/kvm/inject_fault.c:40! Internal error: Oops - BUG: 00000000f2000800 [#1] SMP CPU: 3 UID: 0 PID: 318 Comm: repro Not tainted 6.17.0-rc4-00104-g10fd0285305d #6 PREEMPT Hardware name: linux,dummy-virt (DT) pstate: 21402009 (nzCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : exception_target_el+0x88/0x8c lr : pend_serror_exception+0x18/0x13c sp : ffff800082f03a10 x29: ffff800082f03a10 x28: ffff0000cb132280 x27: 0000000000000000 x26: 0000000000000000 x25: ffff0000c2a99c20 x24: 0000000000000000 x23: 0000000000008000 x22: 0000000000000002 x21: 0000000000000004 x20: 0000000000008000 x19: ffff0000c2a99c20 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 00000000200000c0 x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 x8 : ffff800082f03af8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff800080f621f0 x4 : 0000000000000000 x3 : 0000000000000000 x2 : 000000000040009b x1 : 0000000000000003 x0 : ffff0000c2a99c20 Call trace: exception_target_el+0x88/0x8c (P) kvm_inject_serror_esr+0x40/0x3b4 __kvm_arm_vcpu_set_events+0xf0/0x100 kvm_arch_vcpu_ioctl+0x180/0x9d4 kvm_vcpu_ioctl+0x60c/0x9f4 __arm64_sys_ioctl+0xac/0x104 invoke_syscall+0x48/0x110 el0_svc_common.constprop.0+0x40/0xe0 do_el0_svc+0x1c/0x28 el0_svc+0x34/0xf0 el0t_64_sync_handler+0xa0/0xe4 el0t_64_sync+0x198/0x19c Code: f946bc01 b4fffe61 9101e020 17fffff2 (d4210000) Reject the ioctls outright as no sane VMM would call these before KVM_ARM_VCPU_INIT anyway. Even if it did the exception would've been thrown away by the eventual reset of the vCPU's state. Cc: stable(a)vger.kernel.org # 6.17 Fixes: b7b27facc7b5 ("arm/arm64: KVM: Add KVM_GET/SET_VCPU_EVENTS") Signed-off-by: Oliver Upton <oliver.upton(a)linux.dev> Signed-off-by: Marc Zyngier <maz(a)kernel.org> Signed-off-by: Pu Lehui <pulehui(a)huawei.com> --- arch/arm64/kvm/arm.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c index 72d298e696fa..afcad77b581a 100644 --- a/arch/arm64/kvm/arm.c +++ b/arch/arm64/kvm/arm.c @@ -1532,6 +1532,9 @@ long kvm_arch_vcpu_ioctl(struct file *filp, case KVM_GET_VCPU_EVENTS: { struct kvm_vcpu_events events; + if (!kvm_vcpu_initialized(vcpu)) + return -ENOEXEC; + if (kvm_arm_vcpu_get_events(vcpu, &events)) return -EINVAL; @@ -1543,6 +1546,9 @@ long kvm_arch_vcpu_ioctl(struct file *filp, case KVM_SET_VCPU_EVENTS: { struct kvm_vcpu_events events; + if (!kvm_vcpu_initialized(vcpu)) + return -ENOEXEC; + if (copy_from_user(&events, argp, sizeof(events))) return -EFAULT; -- 2.34.1

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[PATCH OLK-5.10] vxlan: Fix NPD when refreshing an FDB entry with a nexthop object
by Pu Lehui 08 Dec '25

08 Dec '25

From: Ido Schimmel <idosch(a)nvidia.com> mainline inclusion from mainline-v6.17-rc5 commit 6ead38147ebb813f08be6ea8ef547a0e4c09559a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/ICYXVU CVE: CVE-2025-39851 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- VXLAN FDB entries can point to either a remote destination or an FDB nexthop group. The latter is usually used in EVPN deployments where learning is disabled. However, when learning is enabled, an incoming packet might try to refresh an FDB entry that points to an FDB nexthop group and therefore does not have a remote. Such packets should be dropped, but they are only dropped after dereferencing the non-existent remote, resulting in a NPD [1] which can be reproduced using [2]. Fix by dropping such packets earlier. Remove the misleading comment from first_remote_rcu(). [1] BUG: kernel NULL pointer dereference, address: 0000000000000000 [...] CPU: 13 UID: 0 PID: 361 Comm: mausezahn Not tainted 6.17.0-rc1-virtme-g9f6b606b6b37 #1 PREEMPT(voluntary) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.17.0-4.fc41 04/01/2014 RIP: 0010:vxlan_snoop+0x98/0x1e0 [...] Call Trace: <TASK> vxlan_encap_bypass+0x209/0x240 encap_bypass_if_local+0xb1/0x100 vxlan_xmit_one+0x1375/0x17e0 vxlan_xmit+0x6b4/0x15f0 dev_hard_start_xmit+0x5d/0x1c0 __dev_queue_xmit+0x246/0xfd0 packet_sendmsg+0x113a/0x1850 __sock_sendmsg+0x38/0x70 __sys_sendto+0x126/0x180 __x64_sys_sendto+0x24/0x30 do_syscall_64+0xa4/0x260 entry_SYSCALL_64_after_hwframe+0x4b/0x53 [2] #!/bin/bash ip address add 192.0.2.1/32 dev lo ip address add 192.0.2.2/32 dev lo ip nexthop add id 1 via 192.0.2.3 fdb ip nexthop add id 10 group 1 fdb ip link add name vx0 up type vxlan id 10010 local 192.0.2.1 dstport 12345 localbypass ip link add name vx1 up type vxlan id 10020 local 192.0.2.2 dstport 54321 learning bridge fdb add 00:11:22:33:44:55 dev vx0 self static dst 192.0.2.2 port 54321 vni 10020 bridge fdb add 00:aa:bb:cc:dd:ee dev vx1 self static nhid 10 mausezahn vx0 -a 00:aa:bb:cc:dd:ee -b 00:11:22:33:44:55 -c 1 -q Fixes: 1274e1cc4226 ("vxlan: ecmp support for mac fdb entries") Reported-by: Marlin Cremers <mcremers(a)cloudbear.nl> Reviewed-by: Petr Machata <petrm(a)nvidia.com> Signed-off-by: Ido Schimmel <idosch(a)nvidia.com> Reviewed-by: Nikolay Aleksandrov <razor(a)blackwall.org> Link: https://patch.msgid.link/20250901065035.159644-2-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Conflicts: drivers/net/vxlan/vxlan_core.c drivers/net/vxlan/vxlan_private.h [ctx conflicts] Signed-off-by: Pu Lehui <pulehui(a)huawei.com> --- drivers/net/vxlan/vxlan_core.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/drivers/net/vxlan/vxlan_core.c b/drivers/net/vxlan/vxlan_core.c index 75ebdb79587d..4775161c50aa 100644 --- a/drivers/net/vxlan/vxlan_core.c +++ b/drivers/net/vxlan/vxlan_core.c @@ -173,9 +173,7 @@ static inline struct hlist_head *vs_head(struct net *net, __be16 port) return &vn->sock_list[hash_32(ntohs(port), PORT_HASH_BITS)]; } -/* First remote destination for a forwarding entry. - * Guaranteed to be non-NULL because remotes are never deleted. - */ +/* First remote destination for a forwarding entry. */ static inline struct vxlan_rdst *first_remote_rcu(struct vxlan_fdb *fdb) { if (rcu_access_pointer(fdb->nh)) @@ -1502,6 +1500,10 @@ static bool vxlan_snoop(struct net_device *dev, if (likely(f)) { struct vxlan_rdst *rdst = first_remote_rcu(f); + /* Don't override an fdb with nexthop with a learnt entry */ + if (rcu_access_pointer(f->nh)) + return true; + if (likely(vxlan_addr_equal(&rdst->remote_ip, src_ip) && rdst->remote_ifindex == ifindex)) return false; @@ -1510,10 +1512,6 @@ static bool vxlan_snoop(struct net_device *dev, if (f->state & (NUD_PERMANENT | NUD_NOARP)) return true; - /* Don't override an fdb with nexthop with a learnt entry */ - if (rcu_access_pointer(f->nh)) - return true; - if (net_ratelimit()) netdev_info(dev, "%pM migrated from %pIS to %pIS\n", -- 2.34.1

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[PATCH OLK-6.6 0/3] arm64/mpam: Reset mbwu_state while creating new monitor group
by Zeng Heng 08 Dec '25

08 Dec '25

Zeng Heng (3): arm64/mpam: Reset mbwu_state while creating new monitor group arm64/mpam: Remove the redundant prev_val member variable arm64/mpam: Need to reset MPAM component when umounting resctrl drivers/platform/mpam/mpam_devices.c | 9 +-------- drivers/platform/mpam/mpam_internal.h | 3 --- drivers/platform/mpam/mpam_resctrl.c | 3 ++- 3 files changed, 3 insertions(+), 12 deletions(-) -- 2.25.1

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[openeuler:OLK-6.6 3482/3482] kernel/xsched/rt.c:207:6: sparse: sparse: symbol 'rq_init_rt' was not declared. Should it be static?
by kernel test robot 08 Dec '25

08 Dec '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 4b48fa45408a2757255bdd0c640c1f693b424fe4 commit: 832ec54e11a079d968d8f23780ab455b1537b214 [3482/3482] xsched: Add xsched RT class config: arm64-randconfig-r111-20251206 (https://download.01.org/0day-ci/archive/20251208/202512080850.XFeNdf38-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/20251208/202512080850.XFeNdf38-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/202512080850.XFeNdf38-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> kernel/xsched/rt.c:207:6: sparse: sparse: symbol 'rq_init_rt' was not declared. Should it be static? >> kernel/xsched/rt.c:218:6: sparse: sparse: symbol 'xse_init_rt' was not declared. Should it be static? >> kernel/xsched/rt.c:228:6: sparse: sparse: symbol 'xse_deinit_rt' was not declared. Should it be static? -- kernel/xsched/core.c:189:5: sparse: sparse: symbol 'xsched_xse_set_class' was not declared. Should it be static? >> kernel/xsched/core.c:497:12: sparse: sparse: symbol 'xsched_sched_init' was not declared. Should it be static? vim +/rq_init_rt +207 kernel/xsched/rt.c 206 > 207 void rq_init_rt(struct xsched_cu *xcu) 208 { 209 int prio = 0; 210 211 xcu->xrq.rt.nr_running = 0; 212 213 for_each_xse_prio(prio) { 214 INIT_LIST_HEAD(&xcu->xrq.rt.rq[prio]); 215 } 216 } 217 > 218 void xse_init_rt(struct xsched_entity *xse) 219 { 220 struct tgid_prio *map = tgid_prio_find(xse->tgid); 221 222 xse->rt.prio = (map) ? map->prio : XSE_PRIO_DFLT; 223 XSCHED_DEBUG("Xse init: set priority=%d.\n", xse->rt.prio); 224 xse->rt.timeslice = XSCHED_RT_TIMESLICE; 225 INIT_LIST_HEAD(&xse->rt.list_node); 226 } 227 > 228 void xse_deinit_rt(struct xsched_entity *xse) 229 { 230 struct tgid_prio *map = tgid_prio_find(xse->tgid); 231 232 if (map) { 233 tgid_prio_delete(xse->tgid); 234 XSCHED_DEBUG("Map deleted: tgid=%d\n", xse->tgid); 235 } 236 } 237 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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