| Age | Commit message (Collapse) | Author |
|---|
|
Robert Morris reported:
|If a malicious USB device pretends to be an Intersil p54 wifi
|interface and generates an eeprom_readback message with a large
|eeprom->v1.len, p54_rx_eeprom_readback() will copy data from the
|message beyond the end of priv->eeprom.
|
|static void p54_rx_eeprom_readback(struct p54_common *priv,
| struct sk_buff *skb)
|{
| struct p54_hdr *hdr = (struct p54_hdr *) skb->data;
| struct p54_eeprom_lm86 *eeprom = (struct p54_eeprom_lm86 *) hdr->data;
|
| if (priv->fw_var >= 0x509) {
| memcpy(priv->eeprom, eeprom->v2.data,
| le16_to_cpu(eeprom->v2.len));
| } else {
| memcpy(priv->eeprom, eeprom->v1.data,
| le16_to_cpu(eeprom->v1.len));
| }
| [...]
The eeprom->v{1,2}.len is set by the driver in p54_download_eeprom().
The device is supposed to provide the same length back to the driver.
But yes, it's possible (like shown in the report) to alter the value
to something that causes a crash/panic due to overrun.
This patch addresses the issue by adding the size to the common device
context, so p54_rx_eeprom_readback no longer relies on possibly tampered
values... That said, it also checks if the "firmware" altered the value
and no longer copies them.
The one, small saving grace is: Before the driver tries to read the eeprom,
it needs to upload >a< firmware. the vendor firmware has a proprietary
license and as a reason, it is not present on most distributions by
default.
Cc: <stable@kernel.org>
Reported-by: Robert Morris <rtm@mit.edu>
Closes: https://lore.kernel.org/linux-wireless/28782.1747258414@localhost/
Fixes: 7cb770729ba8 ("p54: move eeprom code into common library")
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Link: https://patch.msgid.link/20250516184107.47794-1-chunkeey@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
|
|
Checking the SOCK_WIFI_STATUS flag bit in sk_flags may give wrong results
since sk_flags are part of a union and the union is used otherwise. Add
sk_requests_wifi_status() which checks if sk is non-NULL, sk is a full
socket (so flags are valid) and checks the flag bit.
Fixes: 76a853f86c97 ("wifi: free SKBTX_WIFI_STATUS skb tx_flags flag")
Suggested-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Bert Karwatzki <spasswolf@web.de>
Reviewed-by: Jason Xing <kerneljasonxing@gmail.com>
Link: https://patch.msgid.link/20250520223430.6875-1-spasswolf@web.de
[edit commit message, fix indentation]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
|
|
Restructure the ITS mitigation to use select/update/apply functions like
the other mitigations.
There is a particularly complex interaction between ITS and Retbleed as CDT
(Call Depth Tracking) is a mitigation for both, and either its=stuff or
retbleed=stuff will attempt to enable CDT.
retbleed_update_mitigation() runs first and will check the necessary
pre-conditions for CDT if either ITS or Retbleed stuffing is selected. If
checks pass and ITS stuffing is selected, it will select stuffing for
Retbleed as well.
its_update_mitigation() runs after and will either select stuffing if
retbleed stuffing was enabled, or fall back to the default (aligned thunks)
if stuffing could not be enabled.
Enablement of CDT is done exclusively in retbleed_apply_mitigation().
its_apply_mitigation() is only used to enable aligned thunks.
Signed-off-by: David Kaplan <david.kaplan@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/20250516193212.128782-1-david.kaplan@amd.com
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Pick up build fixes from upstream to make this tree more testable.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
|
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xen_read_msr_safe() currently passes an uninitialized argument 'err' to
xen_do_read_msr(). But as xen_do_read_msr() may not set the argument,
xen_read_msr_safe() could return err with an unpredictable value.
To ensure correctness, initialize err to 0 (representing success)
in xen_read_msr_safe().
Do the same in xen_read_msr(), even err is not used after being passed
to xen_do_read_msr().
Closes: https://lore.kernel.org/xen-devel/aBxNI_Q0-MhtBSZG@stanley.mountain/
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Xin Li (Intel) <xin@zytor.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Juergen Gross <jgross@suse.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Link: https://lore.kernel.org/r/20250517165713.935384-1-xin@zytor.com
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|
As part of the ongoing efforts to sub-divide memory management
maintainership and reviewership, establish a section for memory policy and
migration and add appropriate maintainers and reviewers.
[lorenzo.stoakes@oracle.com: add Ying as reviewer]
Link: https://lkml.kernel.org/r/ed6f0fc2-5608-4eea-b1be-07e3e19be263@lucifer.local
Link: https://lkml.kernel.org/r/20250515191358.205684-1-lorenzo.stoakes@oracle.com
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Reviewed-by: Rakie Kim <rakie.kim@sk.com>
Acked-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Joshua Hahn <joshua.hahnjy@gmail.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Zi Yan <ziy@nvidia.com>
Acked-by: Huang Ying <ying.huang@linux.alibaba.com>
Acked-by: Byungchul Park <byungchul@sk.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Gregory Price <gourry@gourry.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
As part of the ongoing efforts to sub-divide memory management
maintainership and reviewership, establish a section for Kernel Samepage
Merging (KSM) and add appropriate maintainers and reviewers.
Link: https://lkml.kernel.org/r/20250515190404.203596-1-lorenzo.stoakes@oracle.com
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Chengming Zhou <chengming.zhou@linux.dev>
Acked-by: Xu Xin <xu.xin16@zte.com.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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|
apply_to_pte_range() enters the lazy MMU mode and then invokes
kasan_populate_vmalloc_pte() callback on each page table walk iteration.
However, the callback can go into sleep when trying to allocate a single
page, e.g. if an architecutre disables preemption on lazy MMU mode enter.
On s390 if make arch_enter_lazy_mmu_mode() -> preempt_enable() and
arch_leave_lazy_mmu_mode() -> preempt_disable(), such crash occurs:
[ 0.663336] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:321
[ 0.663348] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 2, name: kthreadd
[ 0.663358] preempt_count: 1, expected: 0
[ 0.663366] RCU nest depth: 0, expected: 0
[ 0.663375] no locks held by kthreadd/2.
[ 0.663383] Preemption disabled at:
[ 0.663386] [<0002f3284cbb4eda>] apply_to_pte_range+0xfa/0x4a0
[ 0.663405] CPU: 0 UID: 0 PID: 2 Comm: kthreadd Not tainted 6.15.0-rc5-gcc-kasan-00043-gd76bb1ebb558-dirty #162 PREEMPT
[ 0.663408] Hardware name: IBM 3931 A01 701 (KVM/Linux)
[ 0.663409] Call Trace:
[ 0.663410] [<0002f3284c385f58>] dump_stack_lvl+0xe8/0x140
[ 0.663413] [<0002f3284c507b9e>] __might_resched+0x66e/0x700
[ 0.663415] [<0002f3284cc4f6c0>] __alloc_frozen_pages_noprof+0x370/0x4b0
[ 0.663419] [<0002f3284ccc73c0>] alloc_pages_mpol+0x1a0/0x4a0
[ 0.663421] [<0002f3284ccc8518>] alloc_frozen_pages_noprof+0x88/0xc0
[ 0.663424] [<0002f3284ccc8572>] alloc_pages_noprof+0x22/0x120
[ 0.663427] [<0002f3284cc341ac>] get_free_pages_noprof+0x2c/0xc0
[ 0.663429] [<0002f3284cceba70>] kasan_populate_vmalloc_pte+0x50/0x120
[ 0.663433] [<0002f3284cbb4ef8>] apply_to_pte_range+0x118/0x4a0
[ 0.663435] [<0002f3284cbc7c14>] apply_to_pmd_range+0x194/0x3e0
[ 0.663437] [<0002f3284cbc99be>] __apply_to_page_range+0x2fe/0x7a0
[ 0.663440] [<0002f3284cbc9e88>] apply_to_page_range+0x28/0x40
[ 0.663442] [<0002f3284ccebf12>] kasan_populate_vmalloc+0x82/0xa0
[ 0.663445] [<0002f3284cc1578c>] alloc_vmap_area+0x34c/0xc10
[ 0.663448] [<0002f3284cc1c2a6>] __get_vm_area_node+0x186/0x2a0
[ 0.663451] [<0002f3284cc1e696>] __vmalloc_node_range_noprof+0x116/0x310
[ 0.663454] [<0002f3284cc1d950>] __vmalloc_node_noprof+0xd0/0x110
[ 0.663457] [<0002f3284c454b88>] alloc_thread_stack_node+0xf8/0x330
[ 0.663460] [<0002f3284c458d56>] dup_task_struct+0x66/0x4d0
[ 0.663463] [<0002f3284c45be90>] copy_process+0x280/0x4b90
[ 0.663465] [<0002f3284c460940>] kernel_clone+0xd0/0x4b0
[ 0.663467] [<0002f3284c46115e>] kernel_thread+0xbe/0xe0
[ 0.663469] [<0002f3284c4e440e>] kthreadd+0x50e/0x7f0
[ 0.663472] [<0002f3284c38c04a>] __ret_from_fork+0x8a/0xf0
[ 0.663475] [<0002f3284ed57ff2>] ret_from_fork+0xa/0x38
Instead of allocating single pages per-PTE, bulk-allocate the shadow
memory prior to applying kasan_populate_vmalloc_pte() callback on a page
range.
Link: https://lkml.kernel.org/r/c61d3560297c93ed044f0b1af085610353a06a58.1747316918.git.agordeev@linux.ibm.com
Fixes: 3c5c3cfb9ef4 ("kasan: support backing vmalloc space with real shadow memory")
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Suggested-by: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Reviewed-by: Harry Yoo <harry.yoo@oracle.com>
Cc: Daniel Axtens <dja@axtens.net>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
In commit c749d9b7ebbc ("iov_iter: fix copy_page_from_iter_atomic() if
KMAP_LOCAL_FORCE_MAP"), Hugh correctly noted that if KMAP_LOCAL_FORCE_MAP
is enabled, we must limit ourselves to PAGE_SIZE bytes per call to
kmap_local(). The same problem exists in memcpy_from_folio(),
memcpy_to_folio(), folio_zero_tail(), folio_fill_tail() and
memcpy_from_file_folio(), so add folio_test_partial_kmap() to do this more
succinctly.
Link: https://lkml.kernel.org/r/20250514170607.3000994-2-willy@infradead.org
Fixes: 00cdf76012ab ("mm: add memcpy_from_file_folio()")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Hugh Dickins <hughd@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
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The hung-task detector is missing in MAINTAINERS. While it's been quiet
recently, I'm actively working on it and volunteering to review patches.
Adding this section will make it easier for contributors to know who to
contact.
Link: https://lkml.kernel.org/r/20250513052234.46463-1-lance.yang@linux.dev
Signed-off-by: Lance Yang <lance.yang@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Problem
========
commit 658eb5ab916d ("delayacct: add delay max to record delay peak")
- adding more fields
commit f65c64f311ee ("delayacct: add delay min to record delay peak")
- adding more fields
commit b016d0873777 ("taskstats: modify taskstats version")
- version bump to 15
Since version 15 (TASKSTATS_VERSION=15) the new layout of the structure
adds fields in the middle of the structure, rendering all old software
incompatible with newer kernels and software compiled against the new
kernel headers incompatible with older kernels.
Solution
=========
move delay max and delay min to the end of taskstat, and bump
the version to 16 after the change
[wang.yaxin@zte.com.cn: adjust indentation]
Link: https://lkml.kernel.org/r/202505192131489882NSciXV4EGd8zzjLuwoOK@zte.com.cn
Link: https://lkml.kernel.org/r/20250510155413259V4JNRXxukdDgzsaL0Fo6a@zte.com.cn
Fixes: f65c64f311ee ("delayacct: add delay min to record delay peak")
Signed-off-by: Wang Yaxin <wang.yaxin@zte.com.cn>
Signed-off-by: xu xin <xu.xin16@zte.com.cn>
Signed-off-by: Kun Jiang <jiang.kun2@zte.com.cn>
Reviewed-by: Yang Yang <yang.yang29@zte.com.cn>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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When performing a right split on a folio, the split_at2 may point to a
not-present page if the offset + length equals the original folio size,
which will trigger the following error:
BUG: unable to handle page fault for address: ffffea0006000008
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 143ffb9067 P4D 143ffb9067 PUD 143ffb8067 PMD 0
Oops: Oops: 0000 [#1] SMP PTI
CPU: 0 UID: 0 PID: 502640 Comm: fsx Not tainted 6.15.0-rc3-gc6156189fc6b #889 PR
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/4
RIP: 0010:truncate_inode_partial_folio+0x208/0x620
Code: ff 03 48 01 da e8 78 7e 13 00 48 83 05 10 b5 5a 0c 01 85 c0 0f 85 1c 02 001
RSP: 0018:ffffc90005bafab0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffffea0005ffff00 RCX: 0000000000000002
RDX: 000000000000000c RSI: 0000000000013975 RDI: ffffc90005bafa30
RBP: ffffea0006000000 R08: 0000000000000000 R09: 00000000000009bf
R10: 00000000000007e0 R11: 0000000000000000 R12: 0000000000001633
R13: 0000000000000000 R14: ffffea0005ffff00 R15: fffffffffffffffe
FS: 00007f9f9a161740(0000) GS:ffff8894971fd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffea0006000008 CR3: 000000017c2ae000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
truncate_inode_pages_range+0x226/0x720
truncate_pagecache+0x57/0x90
...
Fix this issue by skipping the split if truncation aligns with the folio
size, make sure the split page number lies within the folio.
Link: https://lkml.kernel.org/r/20250512062825.3533342-1-yi.zhang@huaweicloud.com
Fixes: 7460b470a131 ("mm/truncate: use folio_split() in truncate operation")
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Cc: ErKun Yang <yangerkun@huawei.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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|
In furtherance of ongoing efforts to ensure people are aware of who
de-facto maintains/has an interest in specific parts of mm, as well trying
to avoid get_maintainers.pl listing only Andrew and the mailing list for
mm files - establish a reclaim memory management section and add relevant
maintainers/reviewers.
This is a key part of memory management so sensibly deserves its own
section.
This encompasses both 'classical' reclaim and MGLRU and thus reflects this
in the reviewers from both, as well as those who have contributed
specifically on the memcg side of things.
Link: https://lkml.kernel.org/r/20250512143122.87740-1-lorenzo.stoakes@oracle.com
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Acked-by: Qi Zheng <zhengqi.arch@bytedance.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Yu Zhao <yuzhao@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Make Vlastimil maintainer of this section (with thanks to Vlastimil for
agreeing to this!) and add page isolation files for which this section
seem most appropriate.
We may wish to, in future, refactor/rename some of these files to more
logically fit what is actually being performed, but for the time being
this seems the most sensible place.
Additionally, fix the alphabetical ordering of files.
Link: https://lkml.kernel.org/r/20250512144603.90379-1-lorenzo.stoakes@oracle.com
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Zi Yan <ziy@nvidia.com>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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On configs with CONFIG_ARM64_GCS=y, VM_SHADOW_STACK is bit 38. On configs
with CONFIG_HAVE_ARCH_USERFAULTFD_MINOR=y (selected by CONFIG_ARM64 when
CONFIG_USERFAULTFD=y), VM_UFFD_MINOR is _also_ bit 38.
This bit being shared by two different VMA flags could lead to all sorts
of unintended behaviors. Presumably, a process could maybe call into
userfaultfd in a way that disables the shadow stack vma flag. I can't
think of any attack where this would help (presumably, if an attacker
tries to disable shadow stacks, they are trying to hijack control flow so
can't arbitrarily call into userfaultfd yet anyway) but this still feels
somewhat scary.
Link: https://lkml.kernel.org/r/20250507131000.1204175-2-revest@chromium.org
Fixes: ae80e1629aea ("mm: Define VM_SHADOW_STACK for arm64 when we support GCS")
Signed-off-by: Florent Revest <revest@chromium.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Cc: Borislav Betkov <bp@alien8.de>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Florent Revest <revest@chromium.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Thiago Jung Bauermann <thiago.bauermann@linaro.org>
Cc: Thomas Gleinxer <tglx@linutronix.de>
Cc: Will Deacon <will@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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commit c4608d1bf7c6 ("mm: mmap: map MAP_STACK to VM_NOHUGEPAGE") maps the
mmap option MAP_STACK to VM_NOHUGEPAGE. This is also done if
CONFIG_TRANSPARENT_HUGEPAGE is not defined. But in that case, the
VM_NOHUGEPAGE does not make sense.
I discovered this issue when trying to use the tool CRIU to checkpoint and
restore a container. Our running kernel is compiled without
CONFIG_TRANSPARENT_HUGEPAGE. CRIU parses the output of /proc/<pid>/smaps
and saves the "nh" flag. When trying to restore the container, CRIU fails
to restore the "nh" mappings, since madvise() MADV_NOHUGEPAGE always
returns an error because CONFIG_TRANSPARENT_HUGEPAGE is not defined.
Link: https://lkml.kernel.org/r/20250507-map-map_stack-to-vm_nohugepage-only-if-thp-is-enabled-v5-1-c6c38cfefd6e@kuka.com
Fixes: c4608d1bf7c6 ("mm: mmap: map MAP_STACK to VM_NOHUGEPAGE")
Signed-off-by: Ignacio Moreno Gonzalez <Ignacio.MorenoGonzalez@kuka.com>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Reviewed-by: Yang Shi <yang@os.amperecomputing.com>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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I have been working on the vmalloc code for several years, contributing to
improvements and fixes. Add myself as co-maintainer ("M") alongside
Andrew Morton.
Link: https://lkml.kernel.org/r/20250507150257.61485-1-urezki@gmail.com
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Acked-by: Baoquan He <bhe@redhat.com>
Cc: Christop Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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__alloc_pages_slowpath has no change detection for ac->nodemask in the
part of retry path, while cpuset can modify it in parallel. For some
processes that set mempolicy as MPOL_BIND, this results ac->nodemask
changes, and then the should_reclaim_retry will judge based on the latest
nodemask and jump to retry, while the get_page_from_freelist only
traverses the zonelist from ac->preferred_zoneref, which selected by a
expired nodemask and may cause infinite retries in some cases
cpu 64:
__alloc_pages_slowpath {
/* ..... */
retry:
/* ac->nodemask = 0x1, ac->preferred->zone->nid = 1 */
if (alloc_flags & ALLOC_KSWAPD)
wake_all_kswapds(order, gfp_mask, ac);
/* cpu 1:
cpuset_write_resmask
update_nodemask
update_nodemasks_hier
update_tasks_nodemask
mpol_rebind_task
mpol_rebind_policy
mpol_rebind_nodemask
// mempolicy->nodes has been modified,
// which ac->nodemask point to
*/
/* ac->nodemask = 0x3, ac->preferred->zone->nid = 1 */
if (should_reclaim_retry(gfp_mask, order, ac, alloc_flags,
did_some_progress > 0, &no_progress_loops))
goto retry;
}
Simultaneously starting multiple cpuset01 from LTP can quickly reproduce
this issue on a multi node server when the maximum memory pressure is
reached and the swap is enabled
Link: https://lkml.kernel.org/r/20250416082405.20988-1-zhangtianyang@loongson.cn
Fixes: c33d6c06f60f ("mm, page_alloc: avoid looking up the first zone in a zonelist twice")
Signed-off-by: Tianyang Zhang <zhangtianyang@loongson.cn>
Reviewed-by: Suren Baghdasaryan <surenb@google.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Zi Yan <ziy@nvidia.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
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This driver tries to chain requests together before submitting them
to hardware in order to reduce completion interrupts.
However, it even extends chains that have already been submitted
to hardware. This is dangerous because there is no way of knowing
whether the hardware has already read the DMA memory in question
or not.
Fix this by splitting the chain list into two. One for submitted
requests and one for requests that have not yet been submitted.
Only extend the latter.
Reported-by: Klaus Kudielka <klaus.kudielka@gmail.com>
Fixes: 85030c5168f1 ("crypto: marvell - Add support for chaining crypto requests in TDMA mode")
Cc: <stable@vger.kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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I haven't been able to participate and help with this as much as I had
hoped, and it doesn't look like I will be able to spend time on powerpc
going forward.
Signed-off-by: Naveen N Rao (AMD) <naveen@kernel.org>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20250420163248.1746379-1-naveen@kernel.org
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git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux
Pull remoteproc fix from Bjorn Andersson:
"Address a regression preventing the wireless subsystem remoteproc on
some Qualcomm platforms (e.g. SDM632) from working"
* tag 'rproc-v6.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux:
remoteproc: qcom_wcnss: Fix on platforms without fallback regulators
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
"This fixes a regression in padata as well as an ancient double-free
bug in af_alg"
* tag 'v6.15-p7' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: algif_hash - fix double free in hash_accept
padata: do not leak refcount in reorder_work
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Lorenzo Bianconi says:
====================
net: airoha: Add per-flow stats support to hw flowtable offloading
Introduce per-flow stats accounting to the flowtable hw offload in the
airoha_eth driver. Flow stats are split in the PPE and NPU modules:
- PPE: accounts for high 32bit of per-flow stats
- NPU: accounts for low 32bit of per-flow stats
v1: https://lore.kernel.org/20250514-airoha-en7581-flowstats-v1-0-c00ede12a2ca@kernel.org
====================
Link: https://patch.msgid.link/20250516-airoha-en7581-flowstats-v2-0-06d5fbf28984@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Since netfilter flowtable entries are now refreshed by flow-stats
polling, we can disable hw packet keepalive used to periodically send
packets belonging to offloaded flows to the kernel in order to refresh
flowtable entries.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250516-airoha-en7581-flowstats-v2-3-06d5fbf28984@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Introduce per-flow stats accounting to the flowtable hw offload in
the airoha_eth driver. Flow stats are split in the PPE and NPU modules:
- PPE: accounts for high 32bit of per-flow stats
- NPU: accounts for low 32bit of per-flow stats
FLOW_CLS_STATS can be enabled or disabled at compile time.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250516-airoha-en7581-flowstats-v2-2-06d5fbf28984@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Move ppe_mbox_data struct memory allocation from airoha_npu_send_msg
routine to the caller one. This is a preliminary patch to enable wlan NPU
offloading and flow counter stats support.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250516-airoha-en7581-flowstats-v2-1-06d5fbf28984@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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SGMII_CTRL register, which specifies the active interface, was not
properly restored when resuming from suspend. This led to incorrect
interface selection after resume particularly in scenarios involving
the FPGA.
To fix this:
- Move the SGMII_CTRL setup out of the probe function.
- Initialize the register in the hardware initialization helper function,
which is called during both device initialization and resume.
This ensures the interface configuration is consistently restored after
suspend/resume cycles.
Fixes: a46d9d37c4f4f ("net: lan743x: Add support for SGMII interface")
Signed-off-by: Thangaraj Samynathan <thangaraj.s@microchip.com>
Link: https://patch.msgid.link/20250516035719.117960-1-thangaraj.s@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Kuniyuki Iwashima says:
====================
ipv6: Follow up for RTNL-free RTM_NEWROUTE series.
Patch 1 removes rcu_read_lock() in fib6_get_table().
Patch 2 removes rtnl_is_held arg for lwtunnel_valid_encap_type(), which
was short-term fix and is no longer used.
Patch 3 fixes RCU vs GFP_KERNEL report by syzkaller.
Patch 4~7 reverts GFP_ATOMIC uses to GFP_KERNEL.
v1: https://lore.kernel.org/20250514201943.74456-1-kuniyu@amazon.com
====================
Link: https://patch.msgid.link/20250516022759.44392-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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These two commits preallocated two per-cpu variables in
ip6_route_info_create() as fib_nh_common_init() and fib6_nh_init()
were expected to be called under RCU.
* commit d27b9c40dbd6 ("ipv6: Preallocate nhc_pcpu_rth_output in
ip6_route_info_create().")
* commit 5720a328c3e9 ("ipv6: Preallocate rt->fib6_nh->rt6i_pcpu in
ip6_route_info_create().")
Now these functions can be called without RCU and can use GFP_KERNEL.
Let's revert the commits.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250516022759.44392-8-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Since commit c4837b9853e5 ("ipv6: Split ip6_route_info_create()."),
ip6_route_info_create_nh() uses GFP_ATOMIC as it was expected to be
called under RCU.
Now, we can call it without RCU and use GFP_KERNEL.
Let's pass gfp_flags to ip6_route_info_create_nh().
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250516022759.44392-7-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Commit 71c0efb6d12f ("ipv6: Factorise ip6_route_multipath_add().") split
a loop in ip6_route_multipath_add() so that we can put rcu_read_lock()
between ip6_route_info_create() and ip6_route_info_create_nh().
We no longer need to do so as ip6_route_info_create_nh() does not require
RCU now.
Let's revert the commit to simplify the code.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250516022759.44392-6-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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seg6local LWT setup"
The previous patch fixed the same issue mentioned in
commit 14a0087e7236 ("ipv6: sr: switch to GFP_ATOMIC
flag to allocate memory during seg6local LWT setup").
Let's revert it.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Andrea Mayer <andrea.mayer@uniroma2.it>
Link: https://patch.msgid.link/20250516022759.44392-5-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Commit 169fd62799e8 ("ipv6: Get rid of RTNL for SIOCADDRT and
RTM_NEWROUTE.") added rcu_read_lock() covering
ip6_route_info_create_nh() and __ip6_ins_rt() to guarantee that
nexthop and netdev will not go away.
However, as reported by syzkaller [0], ip_tun_build_state() calls
dst_cache_init() with GFP_KERNEL during the RCU critical section.
ip6_route_info_create_nh() fetches nexthop or netdev depending on
whether RTA_NH_ID is set, and struct fib6_info holds a refcount
of either of them by nexthop_get() or netdev_get_by_index().
netdev_get_by_index() looks up a dev and calls dev_hold() under RCU.
So, we need RCU only around nexthop_find_by_id() and nexthop_get()
( and a few more nexthop code).
Let's add rcu_read_lock() there and remove rcu_read_lock() in
ip6_route_add() and ip6_route_multipath_add().
Now these functions called from fib6_add() need RCU:
- inet6_rt_notify()
- fib6_drop_pcpu_from() (via fib6_purge_rt())
- rt6_flush_exceptions() (via fib6_purge_rt())
- ip6_ignore_linkdown() (via rt6_multipath_rebalance())
All callers of inet6_rt_notify() need RCU, so rcu_read_lock() is
added there.
[0]:
[ BUG: Invalid wait context ]
6.15.0-rc4-syzkaller-00746-g836b313a14a3 #0 Tainted: G W
----------------------------
syz-executor234/5832 is trying to lock:
ffffffff8e021688 (pcpu_alloc_mutex){+.+.}-{4:4}, at:
pcpu_alloc_noprof+0x284/0x16b0 mm/percpu.c:1782
other info that might help us debug this:
context-{5:5}
1 lock held by syz-executor234/5832:
0: ffffffff8df3b860 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire
include/linux/rcupdate.h:331 [inline]
0: ffffffff8df3b860 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock
include/linux/rcupdate.h:841 [inline]
0: ffffffff8df3b860 (rcu_read_lock){....}-{1:3}, at:
ip6_route_add+0x4d/0x2f0 net/ipv6/route.c:3913
stack backtrace:
CPU: 0 UID: 0 PID: 5832 Comm: syz-executor234 Tainted: G W
6.15.0-rc4-syzkaller-00746-g836b313a14a3 #0 PREEMPT(full)
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine,
BIOS Google 04/29/2025
Call Trace:
<TASK>
dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
print_lock_invalid_wait_context kernel/locking/lockdep.c:4831 [inline]
check_wait_context kernel/locking/lockdep.c:4903 [inline]
__lock_acquire+0xbcf/0xd20 kernel/locking/lockdep.c:5185
lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5866
__mutex_lock_common kernel/locking/mutex.c:601 [inline]
__mutex_lock+0x182/0xe80 kernel/locking/mutex.c:746
pcpu_alloc_noprof+0x284/0x16b0 mm/percpu.c:1782
dst_cache_init+0x37/0xc0 net/core/dst_cache.c:145
ip_tun_build_state+0x193/0x6b0 net/ipv4/ip_tunnel_core.c:687
lwtunnel_build_state+0x381/0x4c0 net/core/lwtunnel.c:137
fib_nh_common_init+0x129/0x460 net/ipv4/fib_semantics.c:635
fib6_nh_init+0x15e4/0x2030 net/ipv6/route.c:3669
ip6_route_info_create_nh+0x139/0x870 net/ipv6/route.c:3866
ip6_route_add+0xf6/0x2f0 net/ipv6/route.c:3915
inet6_rtm_newroute+0x284/0x1c50 net/ipv6/route.c:5732
rtnetlink_rcv_msg+0x7cc/0xb70 net/core/rtnetlink.c:6955
netlink_rcv_skb+0x219/0x490 net/netlink/af_netlink.c:2534
netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]
netlink_unicast+0x758/0x8d0 net/netlink/af_netlink.c:1339
netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1883
sock_sendmsg_nosec net/socket.c:712 [inline]
__sock_sendmsg+0x219/0x270 net/socket.c:727
____sys_sendmsg+0x505/0x830 net/socket.c:2566
___sys_sendmsg+0x21f/0x2a0 net/socket.c:2620
__sys_sendmsg net/socket.c:2652 [inline]
__do_sys_sendmsg net/socket.c:2657 [inline]
__se_sys_sendmsg net/socket.c:2655 [inline]
__x64_sys_sendmsg+0x19b/0x260 net/socket.c:2655
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
Fixes: 169fd62799e8 ("ipv6: Get rid of RTNL for SIOCADDRT and RTM_NEWROUTE.")
Reported-by: syzbot+bcc12d6799364500fbec@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=bcc12d6799364500fbec
Reported-by: Eric Dumazet <edumazet@google.com>
Closes: https://lore.kernel.org/netdev/CANn89i+r1cGacVC_6n3-A-WSkAa_Nr+pmxJ7Gt+oP-P9by2aGw@mail.gmail.com/
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250516022759.44392-4-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Commit f130a0cc1b4f ("inet: fix lwtunnel_valid_encap_type() lock
imbalance") added the rtnl_is_held argument as a temporary fix while
I'm converting nexthop and IPv6 routing table to per-netns RTNL or RCU.
Now all callers of lwtunnel_valid_encap_type() do not hold RTNL.
Let's remove the argument.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250516022759.44392-3-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Once allocated, the IPv6 routing table is not freed until
netns is dismantled.
fib6_get_table() uses rcu_read_lock() while iterating
net->ipv6.fib_table_hash[], but it's not needed and
rather confusing.
Because some callers have this pattern,
table = fib6_get_table();
rcu_read_lock();
/* ... use table here ... */
rcu_read_unlock();
[ See: addrconf_get_prefix_route(), ip6_route_del(),
rt6_get_route_info(), rt6_get_dflt_router() ]
and this looks illegal but is actually safe.
Let's remove rcu_read_lock() in fib6_get_table() and pass true
to the last argument of hlist_for_each_entry_rcu() to bypass
the RCU check.
Note that protection is not needed but RCU helper is used to
avoid data-race.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250516022759.44392-2-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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netdev_lock is already held when calling bnxt_ulp_irq_stop() and
bnxt_ulp_irq_restart(). When converting rtnl_lock to netdev_lock,
the original code was rtnl_dereference() to indicate that rtnl_lock
was already held. rcu_dereference_protected() is the correct
conversion after replacing rtnl_lock with netdev_lock.
Add a new helper netdev_lock_dereference() similar to
rtnl_dereference().
Fixes: 004b5008016a ("eth: bnxt: remove most dependencies on RTNL")
Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250519204130.3097027-2-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Maintenance of the ravb driver will be handled by Niklas for now. I
still intend to review patches, and will be using my own email address
going forward.
Signed-off-by: Paul Barker <paul.barker.ct@bp.renesas.com>
Acked-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://patch.msgid.link/20250519133354.6564-1-paul.barker.ct@bp.renesas.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Zak Kemble says:
====================
net: bcmgenet: 64bit stats and expose more stats in ethtool
Hi, this patchset updates the bcmgenet driver with new 64bit statistics via
ndo_get_stats64 and rtnl_link_stats64, now reports hardware discarded
packets in the rx_missed_errors stat and exposes more stats in ethtool.
v1: https://lore.kernel.org/20250513144107.1989-1-zakkemble@gmail.com
v2: https://lore.kernel.org/20250515145142.1415-1-zakkemble@gmail.com
====================
Link: https://patch.msgid.link/20250519113257.1031-1-zakkemble@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Expose more per-queue and overall stats in ethtool
Signed-off-by: Zak Kemble <zakkemble@gmail.com>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/20250519113257.1031-4-zakkemble@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
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Hardware discarded packets are now counted in their own missed stat
instead of being lumped in with general errors.
Signed-off-by: Zak Kemble <zakkemble@gmail.com>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/20250519113257.1031-3-zakkemble@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
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Update the driver to use ndo_get_stats64, rtnl_link_stats64 and
u64_stats_t counters for statistics.
Signed-off-by: Zak Kemble <zakkemble@gmail.com>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/20250519113257.1031-2-zakkemble@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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While the MDIO address of the internal PHY on Allwinner sun8i chips is
generally 1, of_mdio_parse_addr is used to cleanly parse the address
from the device-tree instead of hardcoding it.
A commit reworking the code ditched the parsed value and hardcoded the
value 1 instead, which didn't really break anything but is more fragile
and not future-proof.
Restore the initial behavior using the parsed address returned from the
helper.
Fixes: 634db83b8265 ("net: stmmac: dwmac-sun8i: Handle integrated/external MDIOs")
Signed-off-by: Paul Kocialkowski <paulk@sys-base.io>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Corentin LABBE <clabbe.montjoie@gmail.com>
Tested-by: Corentin LABBE <clabbe.montjoie@gmail.com>
Link: https://patch.msgid.link/20250519164936.4172658-1-paulk@sys-base.io
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2025-05-19 (ice, idpf)
For ice:
Jake removes incorrect incrementing of MAC filter count.
Dave adds check for, prerequisite, switchdev mode before setting up LAG.
For idpf:
Pavan stores max_tx_hdr_size to prevent NULL pointer dereference during
reset.
* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
idpf: fix null-ptr-deref in idpf_features_check
ice: Fix LACP bonds without SRIOV environment
ice: fix vf->num_mac count with port representors
====================
Link: https://patch.msgid.link/20250519210523.1866503-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Heiner Kallweit says:
====================
net: phy: fixed_phy: simplifications and improvements
This series includes two types of changes:
- All callers pass PHY_POLL, therefore remove irq argument
- constify the passed struct fixed_phy_status *status
====================
Link: https://patch.msgid.link/4d4c468e-300d-42c7-92a1-eabbdb6be748@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Constify the passed struct fixed_phy_status *status where possible.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/d1764b62-8538-408b-a4e3-b63715481a38@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
All callers pass PHY_POLL, therefore remove irq argument from
fixed_phy_register().
Note: I keep the irq argument in fixed_phy_add_gpiod() for now,
for the case that somebody may want to use a GPIO interrupt in
the future, by e.g. adding a call to fwnode_irq_get() to
fixed_phy_get_gpiod().
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/31cdb232-a5e9-4997-a285-cb9a7d208124@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
All callers pass PHY_POLL, therefore remove irq argument from
fixed_phy_add().
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Acked-by: Greg Ungerer <gerg@linux-m68k.org>
Link: https://patch.msgid.link/b3b9b3bc-c310-4a54-b376-c909c83575de@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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AFAIU always returning -1 from lockdep's compare function
basically disables checking of dependencies between given
locks. Try to be a little more precise about what guarantees
that instance locks won't deadlock.
Right now we only nest them under protection of rtnl_lock.
Mostly in unregister_netdevice_many() and dev_close_many().
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250517200810.466531-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Fix "withouth" to "without"
Fix "instaces" to "instances"
Signed-off-by: Sumanth Gavini <sumanth.gavini@yahoo.com>
Reviewed-by: Andrea Mayer <andrea.mayer@uniroma2.it>
Link: https://patch.msgid.link/20250517032535.1176351-1-sumanth.gavini@yahoo.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
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Fix misspelling reported by codespell
Signed-off-by: Sumanth Gavini <sumanth.gavini@yahoo.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250517020003.1159640-1-sumanth.gavini@yahoo.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
