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[ Upstream commit 890a64810d59b1a58ed26efc28cfd821fc068e84 ]
While removing CONFIG_UBSAN_SANITIZE_ALL, ARCH_HAS_UBSAN wasn't correctly
depended on. Restore this, as we do not want to attempt UBSAN builds
unless it's actually been tested on a given architecture.
Reported-by: Masahiro Yamada <masahiroy@kernel.org>
Closes: https://lore.kernel.org/all/20240514095427.541201-1-masahiroy@kernel.org
Fixes: 918327e9b7ff ("ubsan: Remove CONFIG_UBSAN_SANITIZE_ALL")
Link: https://lore.kernel.org/r/20240514233747.work.441-kees@kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 6e4ef1429f3be236e145c6115b539acdbd2e299c ]
The test naming convention differs between string_kunit.c and
strcat_kunit.c. Move "test" to the beginning of the function name.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Tested-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Link: https://lore.kernel.org/r/20240419140155.3028912-3-keescook@chromium.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Stable-dep-of: 5bb288c4abc2 ("scsi: mptfusion: Avoid possible run-time warning with long manufacturer strings")
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit b03442f761aae4bbb093a281ad2205bc346188f5 ]
In preparation for moving the strscpy_kunit.c tests into string_kunit.c,
rename "tc" to "strscpy_check" for better readability.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Tested-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Link: https://lore.kernel.org/r/20240419140155.3028912-1-keescook@chromium.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Stable-dep-of: 5bb288c4abc2 ("scsi: mptfusion: Avoid possible run-time warning with long manufacturer strings")
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 9259a4721699947ceb397037991c0e4acc496b21 ]
Currently, str*cmp functions (strcmp, strncmp, strcasecmp and
strncasecmp) are not covered with tests. Extend the `string_kunit.c`
test by adding the test cases for them.
This patch adds 8 more test cases:
1) strcmp test
2) strcmp test on long strings (2048 chars)
3) strncmp test
4) strncmp test on long strings (2048 chars)
5) strcasecmp test
6) strcasecmp test on long strings
7) strncasecmp test
8) strncasecmp test on long strings
These test cases aim at covering as many edge cases as possible,
including the tests on empty strings, situations when the different
symbol is placed at the end of one of the strings, etc.
Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://lore.kernel.org/r/20240417233033.717596-1-ivan.orlov0322@gmail.com
Signed-off-by: Kees Cook <keescook@chromium.org>
Stable-dep-of: 5bb288c4abc2 ("scsi: mptfusion: Avoid possible run-time warning with long manufacturer strings")
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit c2af060d1c18beaec56351cf9c9bcbbc5af341a3 ]
The kcalloc() in dmirror_device_evict_chunk() will return null if the
physical memory has run out. As a result, if src_pfns or dst_pfns is
dereferenced, the null pointer dereference bug will happen.
Moreover, the device is going away. If the kcalloc() fails, the pages
mapping a chunk could not be evicted. So add a __GFP_NOFAIL flag in
kcalloc().
Finally, as there is no need to have physically contiguous memory, Switch
kcalloc() to kvcalloc() in order to avoid failing allocations.
Link: https://lkml.kernel.org/r/20240312005905.9939-1-duoming@zju.edu.cn
Fixes: b2ef9f5a5cb3 ("mm/hmm/test: add selftest driver for HMM")
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Cc: Jérôme Glisse <jglisse@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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to test
[ Upstream commit 5496b9b77d7420652202b73cf036e69760be5deb ]
Commit c72a870926c2 added a mutex to prevent kunit tests from running
concurrently. Unfortunately that mutex gets locked during module load
regardless of whether the module actually has any kunit tests. This
causes a problem for kunit tests that might need to load other kernel
modules (e.g. gss_krb5_test loading the camellia module).
So check to see if there are actually any tests to run before locking
the kunit_run_lock mutex.
Fixes: c72a870926c2 ("kunit: add ability to run tests after boot using debugfs")
Reported-by: Nico Pache <npache@redhat.com>
Signed-off-by: Scott Mayhew <smayhew@redhat.com>
Reviewed-by: Rae Moar <rmoar@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit fabd480b721eb30aa4e2c89507b53933069f9f6e ]
kunit_init_device() should unregister the device on bus register error,
but mistakenly it tries to unregister the bus.
Unregister the device instead of the bus.
Signed-off-by: Wander Lairson Costa <wander@redhat.com>
Fixes: d03c720e03bd ("kunit: Add APIs for managing devices")
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit f8aa1b98ce40184521ed95ec26cc115a255183b2 ]
There is a race condition when a kthread finishes after the deadline and
before the call to kthread_stop(), which may lead to use after free.
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Fixes: adf505457032 ("kunit: fix UAF when run kfence test case test_gfpzero")
Reviewed-by: David Gow <davidgow@google.com>
Reviewed-by: Rae Moar <rmoar@google.com>
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Link: https://lore.kernel.org/r/20240408074625.65017-3-mic@digikod.net
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 74df22453c51392476117d7330bf02cee6e987cf ]
The __alloc_size annotation for kmemdup() was getting disabled under
KUnit testing because the replaced fortify_panic macro implementation
was using "return NULL" as a way to survive the sanity checking. But
having the chance to return NULL invalidated __alloc_size, so kmemdup
was not passing the __builtin_dynamic_object_size() tests any more:
[23:26:18] [PASSED] fortify_test_alloc_size_kmalloc_const
[23:26:19] # fortify_test_alloc_size_kmalloc_dynamic: EXPECTATION FAILED at lib/fortify_kunit.c:265
[23:26:19] Expected __builtin_dynamic_object_size(p, 1) == expected, but
[23:26:19] __builtin_dynamic_object_size(p, 1) == -1 (0xffffffffffffffff)
[23:26:19] expected == 11 (0xb)
[23:26:19] __alloc_size() not working with __bdos on kmemdup("hello there", len, gfp)
[23:26:19] [FAILED] fortify_test_alloc_size_kmalloc_dynamic
Normal builds were not affected: __alloc_size continued to work there.
Use a zero-sized allocation instead, which allows __alloc_size to
behave.
Fixes: 4ce615e798a7 ("fortify: Provide KUnit counters for failure testing")
Fixes: fa4a3f86d498 ("fortify: Add KUnit tests for runtime overflows")
Link: https://lore.kernel.org/r/20240501232937.work.532-kees@kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 998b18072ceb0613629c256b409f4d299829c7ec ]
The kv*() family of tests were accidentally freeing with vfree() instead
of kvfree(). Use kvfree() instead.
Fixes: 9124a2640148 ("kunit/fortify: Validate __alloc_size attribute results")
Link: https://lore.kernel.org/r/20240425230619.work.299-kees@kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit b1080c667b3b2c8c38a7fa83ca5567124887abae ]
Two failure patterns are seen randomly when running slub_kunit tests with
CONFIG_SLAB_FREELIST_RANDOM and CONFIG_SLAB_FREELIST_HARDENED enabled.
Pattern 1:
# test_clobber_zone: pass:1 fail:0 skip:0 total:1
ok 1 test_clobber_zone
# test_next_pointer: EXPECTATION FAILED at lib/slub_kunit.c:72
Expected 3 == slab_errors, but
slab_errors == 0 (0x0)
# test_next_pointer: EXPECTATION FAILED at lib/slub_kunit.c:84
Expected 2 == slab_errors, but
slab_errors == 0 (0x0)
# test_next_pointer: pass:0 fail:1 skip:0 total:1
not ok 2 test_next_pointer
In this case, test_next_pointer() overwrites p[s->offset], but the data
at p[s->offset] is already 0x12.
Pattern 2:
ok 1 test_clobber_zone
# test_next_pointer: EXPECTATION FAILED at lib/slub_kunit.c:72
Expected 3 == slab_errors, but
slab_errors == 2 (0x2)
# test_next_pointer: pass:0 fail:1 skip:0 total:1
not ok 2 test_next_pointer
In this case, p[s->offset] has a value other than 0x12, but one of the
expected failures is nevertheless missing.
Invert data instead of writing a fixed value to corrupt the cache data
structures to fix the problem.
Fixes: 1f9f78b1b376 ("mm/slub, kunit: add a KUnit test for SLUB debugging functionality")
Cc: Oliver Glitta <glittao@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
CC: Daniel Latypov <dlatypov@google.com>
Cc: Marco Elver <elver@google.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM fixes from Andrew Morton:
"18 hotfixes, 7 of which are cc:stable.
More fixups for this cycle's page_owner updates. And a few userfaultfd
fixes. Otherwise, random singletons - see the individual changelogs
for details"
* tag 'mm-hotfixes-stable-2024-05-10-13-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mailmap: add entry for Barry Song
selftests/mm: fix powerpc ARCH check
mailmap: add entry for John Garry
XArray: set the marks correctly when splitting an entry
selftests/vDSO: fix runtime errors on LoongArch
selftests/vDSO: fix building errors on LoongArch
mm,page_owner: don't remove __GFP_NOLOCKDEP in add_stack_record_to_list
fs/proc/task_mmu: fix uffd-wp confusion in pagemap_scan_pmd_entry()
fs/proc/task_mmu: fix loss of young/dirty bits during pagemap scan
mm/vmalloc: fix return value of vb_alloc if size is 0
mm: use memalloc_nofs_save() in page_cache_ra_order()
kmsan: compiler_types: declare __no_sanitize_or_inline
lib/test_xarray.c: fix error assumptions on check_xa_multi_store_adv_add()
tools: fix userspace compilation with new test_xarray changes
MAINTAINERS: update URL's for KEYS/KEYRINGS_INTEGRITY and TPM DEVICE DRIVER
mm: page_owner: fix wrong information in dump_page_owner
maple_tree: fix mas_empty_area_rev() null pointer dereference
mm/userfaultfd: reset ptes when close() for wr-protected ones
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If we created a new node to replace an entry which had search marks set,
we were setting the search mark on every entry in that node. That works
fine when we're splitting to order 0, but when splitting to a larger
order, we must not set the search marks on the sibling entries.
Link: https://lkml.kernel.org/r/20240501153120.4094530-1-willy@infradead.org
Fixes: c010d47f107f ("mm: thp: split huge page to any lower order pages")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reported-by: Luis Chamberlain <mcgrof@kernel.org>
Link: https://lore.kernel.org/r/ZjFGCOYk3FK_zVy3@bombadil.infradead.org
Tested-by: Luis Chamberlain <mcgrof@kernel.org>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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While testing lib/test_xarray in userspace I've noticed we can fail with:
make -C tools/testing/radix-tree
./tools/testing/radix-tree/xarray
BUG at check_xa_multi_store_adv_add:749
xarray: 0x55905fb21a00x head 0x55905fa1d8e0x flags 0 marks 0 0 0
0: 0x55905fa1d8e0x
xarray: ../../../lib/test_xarray.c:749: check_xa_multi_store_adv_add: Assertion `0' failed.
Aborted
We get a failure with a BUG_ON(), and that is because we actually can
fail due to -ENOMEM, the check in xas_nomem() will fix this for us so
it makes no sense to expect no failure inside the loop. So modify the
check and since this is also useful for instructional purposes clarify
the situation.
The check for XA_BUG_ON(xa, xa_load(xa, index) != p) is already done
at the end of the loop so just remove the bogus on inside the loop.
With this we now pass the test in both kernel and userspace:
In userspace:
./tools/testing/radix-tree/xarray
XArray: 149092856 of 149092856 tests passed
In kernel space:
XArray: 148257077 of 148257077 tests passed
Link: https://lkml.kernel.org/r/20240423192221.301095-3-mcgrof@kernel.org
Fixes: a60cc288a1a2 ("test_xarray: add tests for advanced multi-index use")
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Cc: Daniel Gomez <da.gomez@samsung.com>
Cc: Darrick J. Wong <djwong@kernel.org>
Cc: Dave Chinner <david@fromorbit.com>
Cc: "Liam R. Howlett" <Liam.Howlett@oracle.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Pankaj Raghav <p.raghav@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Currently the code calls mas_start() followed by mas_data_end() if the
maple state is MA_START, but mas_start() may return with the maple state
node == NULL. This will lead to a null pointer dereference when checking
information in the NULL node, which is done in mas_data_end().
Avoid setting the offset if there is no node by waiting until after the
maple state is checked for an empty or single entry state.
A user could trigger the events to cause a kernel oops by unmapping all
vmas to produce an empty maple tree, then mapping a vma that would cause
the scenario described above.
Link: https://lkml.kernel.org/r/20240422203349.2418465-1-Liam.Howlett@oracle.com
Fixes: 54a611b60590 ("Maple Tree: add new data structure")
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Reported-by: Marius Fleischer <fleischermarius@gmail.com>
Closes: https://lore.kernel.org/lkml/CAJg=8jyuSxDL6XvqEXY_66M20psRK2J53oBTP+fjV5xpW2-R6w@mail.gmail.com/
Link: https://lore.kernel.org/lkml/CAJg=8jyuSxDL6XvqEXY_66M20psRK2J53oBTP+fjV5xpW2-R6w@mail.gmail.com/
Tested-by: Marius Fleischer <fleischermarius@gmail.com>
Tested-by: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some small char/misc/other driver fixes and new device ids
for 6.9-rc7 that resolve some reported problems.
Included in here are:
- iio driver fixes
- mei driver fix and new device ids
- dyndbg bugfix
- pvpanic-pci driver bugfix
- slimbus driver bugfix
- fpga new device id
All have been in linux-next with no reported problems"
* tag 'char-misc-6.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
slimbus: qcom-ngd-ctrl: Add timeout for wait operation
dyndbg: fix old BUG_ON in >control parser
misc/pvpanic-pci: register attributes via pci_driver
fpga: dfl-pci: add PCI subdevice ID for Intel D5005 card
mei: me: add lunar lake point M DID
mei: pxp: match against PCI_CLASS_DISPLAY_OTHER
iio:imu: adis16475: Fix sync mode setting
iio: accel: mxc4005: Reset chip on probe() and resume()
iio: accel: mxc4005: Interrupt handling fixes
dt-bindings: iio: health: maxim,max30102: fix compatible check
iio: pressure: Fixes SPI support for BMP3xx devices
iio: pressure: Fixes BME280 SPI driver data
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from bpf.
Relatively calm week, likely due to public holiday in most places. No
known outstanding regressions.
Current release - regressions:
- rxrpc: fix wrong alignmask in __page_frag_alloc_align()
- eth: e1000e: change usleep_range to udelay in PHY mdic access
Previous releases - regressions:
- gro: fix udp bad offset in socket lookup
- bpf: fix incorrect runtime stat for arm64
- tipc: fix UAF in error path
- netfs: fix a potential infinite loop in extract_user_to_sg()
- eth: ice: ensure the copied buf is NUL terminated
- eth: qeth: fix kernel panic after setting hsuid
Previous releases - always broken:
- bpf:
- verifier: prevent userspace memory access
- xdp: use flags field to disambiguate broadcast redirect
- bridge: fix multicast-to-unicast with fraglist GSO
- mptcp: ensure snd_nxt is properly initialized on connect
- nsh: fix outer header access in nsh_gso_segment().
- eth: bcmgenet: fix racing registers access
- eth: vxlan: fix stats counters.
Misc:
- a bunch of MAINTAINERS file updates"
* tag 'net-6.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (45 commits)
MAINTAINERS: mark MYRICOM MYRI-10G as Orphan
MAINTAINERS: remove Ariel Elior
net: gro: add flush check in udp_gro_receive_segment
net: gro: fix udp bad offset in socket lookup by adding {inner_}network_offset to napi_gro_cb
ipv4: Fix uninit-value access in __ip_make_skb()
s390/qeth: Fix kernel panic after setting hsuid
vxlan: Pull inner IP header in vxlan_rcv().
tipc: fix a possible memleak in tipc_buf_append
tipc: fix UAF in error path
rxrpc: Clients must accept conn from any address
net: core: reject skb_copy(_expand) for fraglist GSO skbs
net: bridge: fix multicast-to-unicast with fraglist GSO
mptcp: ensure snd_nxt is properly initialized on connect
e1000e: change usleep_range to udelay in PHY mdic access
net: dsa: mv88e6xxx: Fix number of databases for 88E6141 / 88E6341
cxgb4: Properly lock TX queue for the selftest.
rxrpc: Fix using alignmask being zero for __page_frag_alloc_align()
vxlan: Add missing VNI filter counter update in arp_reduce().
vxlan: Fix racy device stats updates.
net: qede: use return from qede_parse_actions()
...
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Fix a BUG_ON from 2009. Even if it looks "unreachable" (I didn't
really look), lets make sure by removing it, doing pr_err and return
-EINVAL instead.
Cc: stable <stable@kernel.org>
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Link: https://lore.kernel.org/r/20240429193145.66543-2-jim.cromie@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says:
====================
pull-request: bpf 2024-04-26
We've added 12 non-merge commits during the last 22 day(s) which contain
a total of 14 files changed, 168 insertions(+), 72 deletions(-).
The main changes are:
1) Fix BPF_PROBE_MEM in verifier and JIT to skip loads from vsyscall page,
from Puranjay Mohan.
2) Fix a crash in XDP with devmap broadcast redirect when the latter map
is in process of being torn down, from Toke Høiland-Jørgensen.
3) Fix arm64 and riscv64 BPF JITs to properly clear start time for BPF
program runtime stats, from Xu Kuohai.
4) Fix a sockmap KCSAN-reported data race in sk_psock_skb_ingress_enqueue,
from Jason Xing.
5) Fix BPF verifier error message in resolve_pseudo_ldimm64,
from Anton Protopopov.
6) Fix missing DEBUG_INFO_BTF_MODULES Kconfig menu item,
from Andrii Nakryiko.
* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
selftests/bpf: Test PROBE_MEM of VSYSCALL_ADDR on x86-64
bpf, x86: Fix PROBE_MEM runtime load check
bpf: verifier: prevent userspace memory access
xdp: use flags field to disambiguate broadcast redirect
arm32, bpf: Reimplement sign-extension mov instruction
riscv, bpf: Fix incorrect runtime stats
bpf, arm64: Fix incorrect runtime stats
bpf: Fix a verifier verbose message
bpf, skmsg: Fix NULL pointer dereference in sk_psock_skb_ingress_enqueue
MAINTAINERS: bpf: Add Lehui and Puranjay as riscv64 reviewers
MAINTAINERS: Update email address for Puranjay Mohan
bpf, kconfig: Fix DEBUG_INFO_BTF_MODULES Kconfig definition
====================
Link: https://lore.kernel.org/r/20240426224248.26197-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"11 hotfixes. 8 are cc:stable and the remaining 3 (nice ratio!) address
post-6.8 issues or aren't considered suitable for backporting.
All except one of these are for MM. I see no particular theme - it's
singletons all over"
* tag 'mm-hotfixes-stable-2024-04-26-13-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm/hugetlb: fix DEBUG_LOCKS_WARN_ON(1) when dissolve_free_hugetlb_folio()
selftests: mm: protection_keys: save/restore nr_hugepages value from launch script
stackdepot: respect __GFP_NOLOCKDEP allocation flag
hugetlb: check for anon_vma prior to folio allocation
mm: zswap: fix shrinker NULL crash with cgroup_disable=memory
mm: turn folio_test_hugetlb into a PageType
mm: support page_mapcount() on page_has_type() pages
mm: create FOLIO_FLAG_FALSE and FOLIO_TYPE_OPS macros
mm/hugetlb: fix missing hugetlb_lock for resv uncharge
selftests: mm: fix unused and uninitialized variable warning
selftests/harness: remove use of LINE_MAX
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Fix extract_user_to_sg() so that it will break out of the loop if
iov_iter_extract_pages() returns 0 rather than looping around forever.
[Note that I've included two fixes lines as the function got moved to a
different file and renamed]
Fixes: 85dd2c8ff368 ("netfs: Add a function to extract a UBUF or IOVEC into a BVEC iterator")
Fixes: f5f82cd18732 ("Move netfs_extract_iter_to_sg() to lib/scatterlist.c")
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Jeff Layton <jlayton@kernel.org>
cc: Steve French <sfrench@samba.org>
cc: Herbert Xu <herbert@gondor.apana.org.au>
cc: netfs@lists.linux.dev
Link: https://lore.kernel.org/r/1967121.1714034372@warthog.procyon.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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If stack_depot_save_flags() allocates memory it always drops
__GFP_NOLOCKDEP flag. So when KASAN tries to track __GFP_NOLOCKDEP
allocation we may end up with lockdep splat like bellow:
======================================================
WARNING: possible circular locking dependency detected
6.9.0-rc3+ #49 Not tainted
------------------------------------------------------
kswapd0/149 is trying to acquire lock:
ffff88811346a920
(&xfs_nondir_ilock_class){++++}-{4:4}, at: xfs_reclaim_inode+0x3ac/0x590
[xfs]
but task is already holding lock:
ffffffff8bb33100 (fs_reclaim){+.+.}-{0:0}, at:
balance_pgdat+0x5d9/0xad0
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (fs_reclaim){+.+.}-{0:0}:
__lock_acquire+0x7da/0x1030
lock_acquire+0x15d/0x400
fs_reclaim_acquire+0xb5/0x100
prepare_alloc_pages.constprop.0+0xc5/0x230
__alloc_pages+0x12a/0x3f0
alloc_pages_mpol+0x175/0x340
stack_depot_save_flags+0x4c5/0x510
kasan_save_stack+0x30/0x40
kasan_save_track+0x10/0x30
__kasan_slab_alloc+0x83/0x90
kmem_cache_alloc+0x15e/0x4a0
__alloc_object+0x35/0x370
__create_object+0x22/0x90
__kmalloc_node_track_caller+0x477/0x5b0
krealloc+0x5f/0x110
xfs_iext_insert_raw+0x4b2/0x6e0 [xfs]
xfs_iext_insert+0x2e/0x130 [xfs]
xfs_iread_bmbt_block+0x1a9/0x4d0 [xfs]
xfs_btree_visit_block+0xfb/0x290 [xfs]
xfs_btree_visit_blocks+0x215/0x2c0 [xfs]
xfs_iread_extents+0x1a2/0x2e0 [xfs]
xfs_buffered_write_iomap_begin+0x376/0x10a0 [xfs]
iomap_iter+0x1d1/0x2d0
iomap_file_buffered_write+0x120/0x1a0
xfs_file_buffered_write+0x128/0x4b0 [xfs]
vfs_write+0x675/0x890
ksys_write+0xc3/0x160
do_syscall_64+0x94/0x170
entry_SYSCALL_64_after_hwframe+0x71/0x79
Always preserve __GFP_NOLOCKDEP to fix this.
Link: https://lkml.kernel.org/r/20240418141133.22950-1-ryabinin.a.a@gmail.com
Fixes: cd11016e5f52 ("mm, kasan: stackdepot implementation. Enable stackdepot for SLAB")
Signed-off-by: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Reported-by: Xiubo Li <xiubli@redhat.com>
Closes: https://lore.kernel.org/all/a0caa289-ca02-48eb-9bf2-d86fd47b71f4@redhat.com/
Reported-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Closes: https://lore.kernel.org/all/f9ff999a-e170-b66b-7caf-293f2b147ac2@opensource.wdc.com/
Suggested-by: Dave Chinner <david@fromorbit.com>
Tested-by: Xiubo Li <xiubli@redhat.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Alexander Potapenko <glider@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull hardening fixes from Kees Cook:
- Correctly disable UBSAN configs in configs/hardening (Nathan
Chancellor)
- Add missing signed integer overflow trap types to arm64 handler
* tag 'hardening-v6.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
ubsan: Add awareness of signed integer overflow traps
configs/hardening: Disable CONFIG_UBSAN_SIGNED_WRAP
configs/hardening: Fix disabling UBSAN configurations
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull bootconfig fixes from Masami Hiramatsu:
- Fix potential static_command_line buffer overrun.
Currently we allocate the memory for static_command_line based on
"boot_command_line", but it will copy "command_line" into it. So we
use the length of "command_line" instead of "boot_command_line" (as
we previously did)
- Use memblock_free_late() in xbc_exit() instead of memblock_free()
after the buddy system is initialized
- Fix a kerneldoc warning
* tag 'bootconfig-fixes-v6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
bootconfig: Fix the kerneldoc of _xbc_exit()
bootconfig: use memblock_free_late to free xbc memory to buddy
init/main.c: Fix potential static_command_line memory overflow
|
|
Fix the kerneldoc of _xbc_exit() which is updated to have an @early
argument and the function name is changed.
Link: https://lore.kernel.org/all/171321744474.599864.13532445969528690358.stgit@devnote2/
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202404150036.kPJ3HEFA-lkp@intel.com/
Fixes: 89f9a1e876b5 ("bootconfig: use memblock_free_late to free xbc memory to buddy")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
|
|
On arm64, UBSAN traps can be decoded from the trap instruction. Add the
add, sub, and mul overflow trap codes now that CONFIG_UBSAN_SIGNED_WRAP
exists. Seen under clang 19:
Internal error: UBSAN: unrecognized failure code: 00000000f2005515 [#1] PREEMPT SMP
Reported-by: Nathan Chancellor <nathan@kernel.org>
Closes: https://lore.kernel.org/lkml/20240411-fix-ubsan-in-hardening-config-v1-0-e0177c80ffaa@kernel.org
Fixes: 557f8c582a9b ("ubsan: Reintroduce signed overflow sanitizer")
Tested-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20240415182832.work.932-kees@kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
|
|
On the time to free xbc memory in xbc_exit(), memblock may has handed
over memory to buddy allocator. So it doesn't make sense to free memory
back to memblock. memblock_free() called by xbc_exit() even causes UAF bugs
on architectures with CONFIG_ARCH_KEEP_MEMBLOCK disabled like x86.
Following KASAN logs shows this case.
This patch fixes the xbc memory free problem by calling memblock_free()
in early xbc init error rewind path and calling memblock_free_late() in
xbc exit path to free memory to buddy allocator.
[ 9.410890] ==================================================================
[ 9.418962] BUG: KASAN: use-after-free in memblock_isolate_range+0x12d/0x260
[ 9.426850] Read of size 8 at addr ffff88845dd30000 by task swapper/0/1
[ 9.435901] CPU: 9 PID: 1 Comm: swapper/0 Tainted: G U 6.9.0-rc3-00208-g586b5dfb51b9 #5
[ 9.446403] Hardware name: Intel Corporation RPLP LP5 (CPU:RaptorLake)/RPLP LP5 (ID:13), BIOS IRPPN02.01.01.00.00.19.015.D-00000000 Dec 28 2023
[ 9.460789] Call Trace:
[ 9.463518] <TASK>
[ 9.465859] dump_stack_lvl+0x53/0x70
[ 9.469949] print_report+0xce/0x610
[ 9.473944] ? __virt_addr_valid+0xf5/0x1b0
[ 9.478619] ? memblock_isolate_range+0x12d/0x260
[ 9.483877] kasan_report+0xc6/0x100
[ 9.487870] ? memblock_isolate_range+0x12d/0x260
[ 9.493125] memblock_isolate_range+0x12d/0x260
[ 9.498187] memblock_phys_free+0xb4/0x160
[ 9.502762] ? __pfx_memblock_phys_free+0x10/0x10
[ 9.508021] ? mutex_unlock+0x7e/0xd0
[ 9.512111] ? __pfx_mutex_unlock+0x10/0x10
[ 9.516786] ? kernel_init_freeable+0x2d4/0x430
[ 9.521850] ? __pfx_kernel_init+0x10/0x10
[ 9.526426] xbc_exit+0x17/0x70
[ 9.529935] kernel_init+0x38/0x1e0
[ 9.533829] ? _raw_spin_unlock_irq+0xd/0x30
[ 9.538601] ret_from_fork+0x2c/0x50
[ 9.542596] ? __pfx_kernel_init+0x10/0x10
[ 9.547170] ret_from_fork_asm+0x1a/0x30
[ 9.551552] </TASK>
[ 9.555649] The buggy address belongs to the physical page:
[ 9.561875] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x45dd30
[ 9.570821] flags: 0x200000000000000(node=0|zone=2)
[ 9.576271] page_type: 0xffffffff()
[ 9.580167] raw: 0200000000000000 ffffea0011774c48 ffffea0012ba1848 0000000000000000
[ 9.588823] raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000
[ 9.597476] page dumped because: kasan: bad access detected
[ 9.605362] Memory state around the buggy address:
[ 9.610714] ffff88845dd2ff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 9.618786] ffff88845dd2ff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 9.626857] >ffff88845dd30000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 9.634930] ^
[ 9.638534] ffff88845dd30080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 9.646605] ffff88845dd30100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 9.654675] ==================================================================
Link: https://lore.kernel.org/all/20240414114944.1012359-1-qiang4.zhang@linux.intel.com/
Fixes: 40caa127f3c7 ("init: bootconfig: Remove all bootconfig data when the init memory is removed")
Cc: Stable@vger.kernel.org
Signed-off-by: Qiang Zhang <qiang4.zhang@intel.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from bluetooth.
Current release - new code bugs:
- netfilter: complete validation of user input
- mlx5: disallow SRIOV switchdev mode when in multi-PF netdev
Previous releases - regressions:
- core: fix u64_stats_init() for lockdep when used repeatedly in one
file
- ipv6: fix race condition between ipv6_get_ifaddr and ipv6_del_addr
- bluetooth: fix memory leak in hci_req_sync_complete()
- batman-adv: avoid infinite loop trying to resize local TT
- drv: geneve: fix header validation in geneve[6]_xmit_skb
- drv: bnxt_en: fix possible memory leak in
bnxt_rdma_aux_device_init()
- drv: mlx5: offset comp irq index in name by one
- drv: ena: avoid double-free clearing stale tx_info->xdpf value
- drv: pds_core: fix pdsc_check_pci_health deadlock
Previous releases - always broken:
- xsk: validate user input for XDP_{UMEM|COMPLETION}_FILL_RING
- bluetooth: fix setsockopt not validating user input
- af_unix: clear stale u->oob_skb.
- nfc: llcp: fix nfc_llcp_setsockopt() unsafe copies
- drv: virtio_net: fix guest hangup on invalid RSS update
- drv: mlx5e: Fix mlx5e_priv_init() cleanup flow
- dsa: mt7530: trap link-local frames regardless of ST Port State"
* tag 'net-6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (59 commits)
net: ena: Set tx_info->xdpf value to NULL
net: ena: Fix incorrect descriptor free behavior
net: ena: Wrong missing IO completions check order
net: ena: Fix potential sign extension issue
af_unix: Fix garbage collector racing against connect()
net: dsa: mt7530: trap link-local frames regardless of ST Port State
Revert "s390/ism: fix receive message buffer allocation"
net: sparx5: fix wrong config being used when reconfiguring PCS
net/mlx5: fix possible stack overflows
net/mlx5: Disallow SRIOV switchdev mode when in multi-PF netdev
net/mlx5e: RSS, Block XOR hash with over 128 channels
net/mlx5e: Do not produce metadata freelist entries in Tx port ts WQE xmit
net/mlx5e: HTB, Fix inconsistencies with QoS SQs number
net/mlx5e: Fix mlx5e_priv_init() cleanup flow
net/mlx5e: RSS, Block changing channels number when RXFH is configured
net/mlx5: Correctly compare pkt reformat ids
net/mlx5: Properly link new fs rules into the tree
net/mlx5: offset comp irq index in name by one
net/mlx5: Register devlink first under devlink lock
net/mlx5: E-switch, store eswitch pointer before registering devlink_param
...
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|
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull hardening fixes from Kees Cook:
- gcc-plugins/stackleak: Avoid .head.text section (Ard Biesheuvel)
- ubsan: fix unused variable warning in test module (Arnd Bergmann)
- Improve entropy diffusion in randomize_kstack
* tag 'hardening-v6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
randomize_kstack: Improve entropy diffusion
ubsan: fix unused variable warning in test module
gcc-plugins/stackleak: Avoid .head.text section
|
|
When CONFIG_NET is disabled, an extra warning shows up for this
unused variable:
lib/checksum_kunit.c:218:18: error: 'expected_csum_ipv6_magic' defined but not used [-Werror=unused-const-variable=]
Replace the #ifdef with an IS_ENABLED() check that makes the compiler's
dead-code-elimination take care of the link failure.
Fixes: f24a70106dc1 ("lib: checksum: Fix build with CONFIG_NET=n")
Suggested-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Simon Horman <horms@kernel.org> # build-tested
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Commit 3ee34eabac2a ("lib/stackdepot: fix first entry having a 0-handle")
changed the meaning of the pool_index field to mean "the pool index plus
1". This made the code accessing this field less self-documenting, as
well as causing debuggers such as drgn to not be able to easily remain
compatible with both old and new kernels, because they typically do that
by testing for presence of the new field. Because stackdepot is a
debugging tool, we should make sure that it is debugger friendly.
Therefore, give the field a different name to improve readability as well
as enabling debugger backwards compatibility.
This is needed in 6.9, which would otherwise become an odd release with
the new semantics and old name so debuggers wouldn't recognize the new
semantics there.
Fixes: 3ee34eabac2a ("lib/stackdepot: fix first entry having a 0-handle")
Link: https://lkml.kernel.org/r/20240402001500.53533-1-pcc@google.com
Link: https://linux-review.googlesource.com/id/Ib3e70c36c1d230dd0a118dc22649b33e768b9f88
Signed-off-by: Peter Collingbourne <pcc@google.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Alexander Potapenko <glider@google.com>
Acked-by: Marco Elver <elver@google.com>
Acked-by: Oscar Salvador <osalvador@suse.de>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Omar Sandoval <osandov@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Turns out that due to CONFIG_DEBUG_INFO_BTF_MODULES not having an
explicitly specified "menu item name" in Kconfig, it's basically
impossible to turn it off (see [0]).
This patch fixes the issue by defining menu name for
CONFIG_DEBUG_INFO_BTF_MODULES, which makes it actually adjustable
and independent of CONFIG_DEBUG_INFO_BTF, in the sense that one can
have DEBUG_INFO_BTF=y and DEBUG_INFO_BTF_MODULES=n.
We still keep it as defaulting to Y, of course.
Fixes: 5f9ae91f7c0d ("kbuild: Build kernel module BTFs if BTF is enabled and pahole supports it")
Reported-by: Vincent Li <vincent.mc.li@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/CAK3+h2xiFfzQ9UXf56nrRRP=p1+iUxGoEP5B+aq9MDT5jLXDSg@mail.gmail.com [0]
Link: https://lore.kernel.org/bpf/20240404220344.3879270-1-andrii@kernel.org
|
|
This is one of the drivers with an unused variable that is marked 'const'.
Adding a __used annotation here avoids the warning and lets us enable
the option by default:
lib/test_ubsan.c:137:28: error: unused variable 'skip_ubsan_array' [-Werror,-Wunused-const-variable]
Fixes: 4a26f49b7b3d ("ubsan: expand tests and reporting")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20240403080702.3509288-3-arnd@kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull more hardening updates from Kees Cook:
- CONFIG_MEMCPY_SLOW_KUNIT_TEST is no longer needed (Guenter Roeck)
- Fix needless UTF-8 character in arch/Kconfig (Liu Song)
- Improve __counted_by warning message in LKDTM (Nathan Chancellor)
- Refactor DEFINE_FLEX() for default use of __counted_by
- Disable signed integer overflow sanitizer on GCC < 8
* tag 'hardening-v6.9-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
lkdtm/bugs: Improve warning message for compilers without counted_by support
overflow: Change DEFINE_FLEX to take __counted_by member
Revert "kunit: memcpy: Split slow memcpy tests into MEMCPY_SLOW_KUNIT_TEST"
arch/Kconfig: eliminate needless UTF-8 character in Kconfig help
ubsan: Disable signed integer overflow sanitizer on GCC < 8
|
|
The norm should be flexible array structures with __counted_by
annotations, so DEFINE_FLEX() is updated to expect that. Rename
the non-annotated version to DEFINE_RAW_FLEX(), and update the
few existing users. Additionally add selftests for the macros.
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20240306235128.it.933-kees@kernel.org
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev
Pull fbdev updates from Helge Deller:
- Allow console fonts up to 64x128 pixels (Samuel Thibault)
- Prevent division-by-zero in fb monitor code (Roman Smirnov)
- Drop Renesas ARM platforms from Mobile LCDC framebuffer driver (Geert
Uytterhoeven)
- Various code cleanups in viafb, uveafb and mb862xxfb drivers by
Aleksandr Burakov, Li Zhijian and Michael Ellerman
* tag 'fbdev-for-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
fbdev: panel-tpo-td043mtea1: Convert sprintf() to sysfs_emit()
fbmon: prevent division by zero in fb_videomode_from_videomode()
fbcon: Increase maximum font width x height to 64 x 128
fbdev: viafb: fix typo in hw_bitblt_1 and hw_bitblt_2
fbdev: mb862xxfb: Fix defined but not used error
fbdev: uvesafb: Convert sprintf/snprintf to sysfs_emit
fbdev: Restrict FB_SH_MOBILE_LCDC to SuperH
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Generate a list of built DTB files (arch/*/boot/dts/dtbs-list)
- Use more threads when building Debian packages in parallel
- Fix warnings shown during the RPM kernel package uninstallation
- Change OBJECT_FILES_NON_STANDARD_*.o etc. to take a relative path to
Makefile
- Support GCC's -fmin-function-alignment flag
- Fix a null pointer dereference bug in modpost
- Add the DTB support to the RPM package
- Various fixes and cleanups in Kconfig
* tag 'kbuild-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (67 commits)
kconfig: tests: test dependency after shuffling choices
kconfig: tests: add a test for randconfig with dependent choices
kconfig: tests: support KCONFIG_SEED for the randconfig runner
kbuild: rpm-pkg: add dtb files in kernel rpm
kconfig: remove unneeded menu_is_visible() call in conf_write_defconfig()
kconfig: check prompt for choice while parsing
kconfig: lxdialog: remove unused dialog colors
kconfig: lxdialog: fix button color for blackbg theme
modpost: fix null pointer dereference
kbuild: remove GCC's default -Wpacked-bitfield-compat flag
kbuild: unexport abs_srctree and abs_objtree
kbuild: Move -Wenum-{compare-conditional,enum-conversion} into W=1
kconfig: remove named choice support
kconfig: use linked list in get_symbol_str() to iterate over menus
kconfig: link menus to a symbol
kbuild: fix inconsistent indentation in top Makefile
kbuild: Use -fmin-function-alignment when available
alpha: merge two entries for CONFIG_ALPHA_GAMMA
alpha: merge two entries for CONFIG_ALPHA_EV4
kbuild: change DTC_FLAGS_<basetarget>.o to take the path relative to $(obj)
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the "big" set of driver core and kernfs changes for 6.9-rc1.
Nothing all that crazy here, just some good updates that include:
- automatic attribute group hiding from Dan Williams (he fixed up my
horrible attempt at doing this.)
- kobject lock contention fixes from Eric Dumazet
- driver core cleanups from Andy
- kernfs rcu work from Tejun
- fw_devlink changes to resolve some reported issues
- other minor changes, all details in the shortlog
All of these have been in linux-next for a long time with no reported
issues"
* tag 'driver-core-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (28 commits)
device: core: Log warning for devices pending deferred probe on timeout
driver: core: Use dev_* instead of pr_* so device metadata is added
driver: core: Log probe failure as error and with device metadata
of: property: fw_devlink: Add support for "post-init-providers" property
driver core: Add FWLINK_FLAG_IGNORE to completely ignore a fwnode link
driver core: Adds flags param to fwnode_link_add()
debugfs: fix wait/cancellation handling during remove
device property: Don't use "proxy" headers
device property: Move enum dev_dma_attr to fwnode.h
driver core: Move fw_devlink stuff to where it belongs
driver core: Drop unneeded 'extern' keyword in fwnode.h
firmware_loader: Suppress warning on FW_OPT_NO_WARN flag
sysfs:Addresses documentation in sysfs_merge_group and sysfs_unmerge_group.
firmware_loader: introduce __free() cleanup hanler
platform-msi: Remove usage of the deprecated ida_simple_xx() API
sysfs: Introduce DEFINE_SIMPLE_SYSFS_GROUP_VISIBLE()
sysfs: Document new "group visible" helpers
sysfs: Fix crash on empty group attributes array
sysfs: Introduce a mechanism to hide static attribute_groups
sysfs: Introduce a mechanism to hide static attribute_groups
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty / serial driver updates from Greg KH:
"Here is the big set of TTY/Serial driver updates and cleanups for
6.9-rc1. Included in here are:
- more tty cleanups from Jiri
- loads of 8250 driver cleanups from Andy
- max310x driver updates
- samsung serial driver updates
- uart_prepare_sysrq_char() updates for many drivers
- platform driver remove callback void cleanups
- stm32 driver updates
- other small tty/serial driver updates
All of these have been in linux-next for a long time with no reported
issues"
* tag 'tty-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (199 commits)
dt-bindings: serial: stm32: add power-domains property
serial: 8250_dw: Replace ACPI device check by a quirk
serial: Lock console when calling into driver before registration
serial: 8250_uniphier: Switch to use uart_read_port_properties()
serial: 8250_tegra: Switch to use uart_read_port_properties()
serial: 8250_pxa: Switch to use uart_read_port_properties()
serial: 8250_omap: Switch to use uart_read_port_properties()
serial: 8250_of: Switch to use uart_read_port_properties()
serial: 8250_lpc18xx: Switch to use uart_read_port_properties()
serial: 8250_ingenic: Switch to use uart_read_port_properties()
serial: 8250_dw: Switch to use uart_read_port_properties()
serial: 8250_bcm7271: Switch to use uart_read_port_properties()
serial: 8250_bcm2835aux: Switch to use uart_read_port_properties()
serial: 8250_aspeed_vuart: Switch to use uart_read_port_properties()
serial: port: Introduce a common helper to read properties
serial: core: Add UPIO_UNKNOWN constant for unknown port type
serial: core: Move struct uart_port::quirks closer to possible values
serial: sh-sci: Call sci_serial_{in,out}() directly
serial: core: only stop transmit when HW fifo is empty
serial: pch: Use uart_prepare_sysrq_char().
...
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This reverts commit 4acf1de35f41549e60c3c02a8defa7cb95eabdf2.
Commit d055c6a2cc16 ("kunit: memcpy: Mark tests as slow using test
attributes") marks slow memcpy unit tests as slow. Since this commit,
the tests can be disabled with a module parameter, and the configuration
option to skip the slow tests is no longer needed. Revert the patch
introducing it.
Cc: David Gow <davidgow@google.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20240314151200.2285314-1-linux@roeck-us.net
Signed-off-by: Kees Cook <keescook@chromium.org>
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For opting functions out of sanitizer coverage, the "no_sanitize"
attribute is used, but in GCC this wasn't introduced until GCC 8.
Disable the sanitizer unless we're not using GCC, or it is GCC
version 8 or higher.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202403110643.27JXEVCI-lkp@intel.com/
Reviewed-by: Marco Elver <elver@google.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
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Pull CXL updates from Dan Williams:
"CXL has mechanisms to enumerate the performance characteristics of
memory devices. Those mechanisms allow Linux to build the equivalent
of ACPI SRAT, SLIT, and HMAT tables dynamically at runtime. That
capability is necessary because static ACPI can not represent dynamic
CXL configurations (and reconfigurations).
So, building on the v6.8 work to add "Quality of Service" enumeration,
this update plumbs CXL "access coordinates" (read/write access latency
and bandwidth) in all the same places that ACPI HMAT feeds similar
data. Follow-on patches from the -mm side can then use that data to
feed mechanisms like mm/memory-tiers.c. Greg has acked the touch to
drivers/base/.
The other feature update this cycle is support for CXL error injection
via the ACPI EINJ module. That facility enables injection of bus
protocol errors provided the user knows the magic address values to
insert in the interface. To hide that magic, and make this easier to
use, new error injection attributes were added to CXL debugfs. That
interface injects the errors relative to a CXL object rather than
require user tooling to know how to lookup and inject RCRB (Root
Complex Register Block) addresses into the raw EINJ debugfs interface.
It received some helpful review comments from Tony, but no explicit
acks from the ACPI side. The primary user visible change for existing
EINJ users is that they may find that einj.ko was already loaded by
cxl_core.ko. Previously, einj.ko was only loaded on demand.
The usual collection of miscellaneous cleanups are also present this
cycle.
Summary:
- Supplement ACPI HMAT reported memory performance with native CXL
memory performance enumeration
- Add support for CXL error injection via the ACPI EINJ mechanism
- Cleanup CXL DOE and CDAT integration
- Miscellaneous cleanups and fixes"
* tag 'cxl-for-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (21 commits)
Documentation/ABI/testing/debugfs-cxl: Fix "Unexpected indentation"
lib/firmware_table: Provide buffer length argument to cdat_table_parse()
cxl/pci: Get rid of pointer arithmetic reading CDAT table
cxl/pci: Rename DOE mailbox handle to doe_mb
cxl: Fix the incorrect assignment of SSLBIS entry pointer initial location
cxl/core: Add CXL EINJ debugfs files
EINJ, Documentation: Update EINJ kernel doc
EINJ: Add CXL error type support
EINJ: Migrate to a platform driver
cxl/region: Deal with numa nodes not enumerated by SRAT
cxl/region: Add memory hotplug notifier for cxl region
cxl/region: Add sysfs attribute for locality attributes of CXL regions
cxl/region: Calculate performance data for a region
cxl: Set cxlmd->endpoint before adding port device
cxl: Move QoS class to be calculated from the nearest CPU
cxl: Split out host bridge access coordinates
cxl: Split out combine_coordinates() for common shared usage
ACPI: HMAT / cxl: Add retrieval of generic port coordinates for both access classes
ACPI: HMAT: Introduce 2 levels of generic port access class
base/node / ACPI: Enumerate node access class for 'struct access_coordinate'
...
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By using bitmaps we actually support whatever size we would want, but
the console currently limits fonts to 64x128 (which gives 60x16 text on
4k screens), so we don't need more for now, and we can easily increase
later.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Helge Deller <deller@gmx.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/alarsson/linux-sparc
Pull sparc updates from Andreas Larsson:
- Fix missing prototype warnings in various places, including switching
to using generic cmpdi2/ucmpdi2 and parport.h and stop selecting
unneeded GENERIC_ISA_DMA.
- Reduce duplicate code by using shared font data, with dependency
fixup in separate commit touching lib/fonts.
- Convert sbus drives to use remove callbacks returning void
- Fix return values of __setup handlers
- Section mismatch fix for grpci pci drivers
- Make the vio bus type constant
- Kconfig cleanups and fixes
- Typo fixes
* tag 'sparc-for-6.9-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/alarsson/linux-sparc:
lib/fonts: Allow Sparc console 8x16 font for sparc64 early boot text console
sbus: uctrl: Convert to platform remove callback returning void
sbus: flash: Convert to platform remove callback returning void
sbus: envctrl: Convert to platform remove callback returning void
sbus: display7seg: Convert to platform remove callback returning void
sbus: bbc_i2c: Convert to platform remove callback returning void
sbus: Add prototype for bbc_envctrl_init and bbc_envctrl_cleanup to header
sparc32: Fix section mismatch in leon_pci_grpci
sparc32: Fix parport build with sparc32
sparc32: Do not select GENERIC_ISA_DMA
mtd: maps: sun_uflash: Declare uflash_devinit static
sparc32: Fix build with trapbase
sparc32: Use generic cmpdi2/ucmpdi2 variants
sparc: select FRAME_POINTER instead of redefining it
sparc: vDSO: fix return value of __setup handler
sparc64: NMI watchdog: fix return value of __setup handler
sparc: vio: make vio_bus_type const
sparc: Fix typos
sparc: Use shared font data
sparc: remove obsolete config ARCH_ATU
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Pull bcachefs updates from Kent Overstreet:
- Subvolume children btree; this is needed for providing a userspace
interface for walking subvolumes, which will come later
- Lots of improvements to directory structure checking
- Improved journal pipelining, significantly improving performance on
high iodepth write workloads
- Discard path improvements: the discard path is more efficient, and no
longer flushes the journal unnecessarily
- Buffered write path can now avoid taking the inode lock
- new mm helper: memalloc_flags_{save|restore}
- mempool now does kvmalloc mempools
* tag 'bcachefs-2024-03-13' of https://evilpiepirate.org/git/bcachefs: (128 commits)
bcachefs: time_stats: shrink time_stat_buffer for better alignment
bcachefs: time_stats: split stats-with-quantiles into a separate structure
bcachefs: mean_and_variance: put struct mean_and_variance_weighted on a diet
bcachefs: time_stats: add larger units
bcachefs: pull out time_stats.[ch]
bcachefs: reconstruct_alloc cleanup
bcachefs: fix bch_folio_sector padding
bcachefs: Fix btree key cache coherency during replay
bcachefs: Always flush write buffer in delete_dead_inodes()
bcachefs: Fix order of gc_done passes
bcachefs: fix deletion of indirect extents in btree_gc
bcachefs: Prefer struct_size over open coded arithmetic
bcachefs: Kill unused flags argument to btree_split()
bcachefs: Check for writing superblocks with nonsense member seq fields
bcachefs: fix bch2_journal_buf_to_text()
lib/generic-radix-tree.c: Make nodes more reasonably sized
bcachefs: copy_(to|from)_user_errcode()
bcachefs: Split out bkey_types.h
bcachefs: fix lost journal buf wakeup due to improved pipelining
bcachefs: intercept mountoption value for bool type
...
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
- Kuan-Wei Chiu has developed the well-named series "lib min_heap: Min
heap optimizations".
- Kuan-Wei Chiu has also sped up the library sorting code in the series
"lib/sort: Optimize the number of swaps and comparisons".
- Alexey Gladkov has added the ability for code running within an IPC
namespace to alter its IPC and MQ limits. The series is "Allow to
change ipc/mq sysctls inside ipc namespace".
- Geert Uytterhoeven has contributed some dhrystone maintenance work in
the series "lib: dhry: miscellaneous cleanups".
- Ryusuke Konishi continues nilfs2 maintenance work in the series
"nilfs2: eliminate kmap and kmap_atomic calls"
"nilfs2: fix kernel bug at submit_bh_wbc()"
- Nathan Chancellor has updated our build tools requirements in the
series "Bump the minimum supported version of LLVM to 13.0.1".
- Muhammad Usama Anjum continues with the selftests maintenance work in
the series "selftests/mm: Improve run_vmtests.sh".
- Oleg Nesterov has done some maintenance work against the signal code
in the series "get_signal: minor cleanups and fix".
Plus the usual shower of singleton patches in various parts of the tree.
Please see the individual changelogs for details.
* tag 'mm-nonmm-stable-2024-03-14-09-36' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (77 commits)
nilfs2: prevent kernel bug at submit_bh_wbc()
nilfs2: fix failure to detect DAT corruption in btree and direct mappings
ocfs2: enable ocfs2_listxattr for special files
ocfs2: remove SLAB_MEM_SPREAD flag usage
assoc_array: fix the return value in assoc_array_insert_mid_shortcut()
buildid: use kmap_local_page()
watchdog/core: remove sysctl handlers from public header
nilfs2: use div64_ul() instead of do_div()
mul_u64_u64_div_u64: increase precision by conditionally swapping a and b
kexec: copy only happens before uchunk goes to zero
get_signal: don't initialize ksig->info if SIGNAL_GROUP_EXIT/group_exec_task
get_signal: hide_si_addr_tag_bits: fix the usage of uninitialized ksig
get_signal: don't abuse ksig->info.si_signo and ksig->sig
const_structs.checkpatch: add device_type
Normalise "name (ad@dr)" MODULE_AUTHORs to "name <ad@dr>"
dyndbg: replace kstrdup() + strchr() with kstrdup_and_replace()
list: leverage list_is_head() for list_entry_is_head()
nilfs2: MAINTAINERS: drop unreachable project mirror site
smp: make __smp_processor_id() 0-argument macro
fat: fix uninitialized field in nostale filehandles
...
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
- Sumanth Korikkar has taught s390 to allocate hotplug-time page frames
from hotplugged memory rather than only from main memory. Series
"implement "memmap on memory" feature on s390".
- More folio conversions from Matthew Wilcox in the series
"Convert memcontrol charge moving to use folios"
"mm: convert mm counter to take a folio"
- Chengming Zhou has optimized zswap's rbtree locking, providing
significant reductions in system time and modest but measurable
reductions in overall runtimes. The series is "mm/zswap: optimize the
scalability of zswap rb-tree".
- Chengming Zhou has also provided the series "mm/zswap: optimize zswap
lru list" which provides measurable runtime benefits in some
swap-intensive situations.
- And Chengming Zhou further optimizes zswap in the series "mm/zswap:
optimize for dynamic zswap_pools". Measured improvements are modest.
- zswap cleanups and simplifications from Yosry Ahmed in the series
"mm: zswap: simplify zswap_swapoff()".
- In the series "Add DAX ABI for memmap_on_memory", Vishal Verma has
contributed several DAX cleanups as well as adding a sysfs tunable to
control the memmap_on_memory setting when the dax device is
hotplugged as system memory.
- Johannes Weiner has added the large series "mm: zswap: cleanups",
which does that.
- More DAMON work from SeongJae Park in the series
"mm/damon: make DAMON debugfs interface deprecation unignorable"
"selftests/damon: add more tests for core functionalities and corner cases"
"Docs/mm/damon: misc readability improvements"
"mm/damon: let DAMOS feeds and tame/auto-tune itself"
- In the series "mm/mempolicy: weighted interleave mempolicy and sysfs
extension" Rakie Kim has developed a new mempolicy interleaving
policy wherein we allocate memory across nodes in a weighted fashion
rather than uniformly. This is beneficial in heterogeneous memory
environments appearing with CXL.
- Christophe Leroy has contributed some cleanup and consolidation work
against the ARM pagetable dumping code in the series "mm: ptdump:
Refactor CONFIG_DEBUG_WX and check_wx_pages debugfs attribute".
- Luis Chamberlain has added some additional xarray selftesting in the
series "test_xarray: advanced API multi-index tests".
- Muhammad Usama Anjum has reworked the selftest code to make its
human-readable output conform to the TAP ("Test Anything Protocol")
format. Amongst other things, this opens up the use of third-party
tools to parse and process out selftesting results.
- Ryan Roberts has added fork()-time PTE batching of THP ptes in the
series "mm/memory: optimize fork() with PTE-mapped THP". Mainly
targeted at arm64, this significantly speeds up fork() when the
process has a large number of pte-mapped folios.
- David Hildenbrand also gets in on the THP pte batching game in his
series "mm/memory: optimize unmap/zap with PTE-mapped THP". It
implements batching during munmap() and other pte teardown
situations. The microbenchmark improvements are nice.
- And in the series "Transparent Contiguous PTEs for User Mappings"
Ryan Roberts further utilizes arm's pte's contiguous bit ("contpte
mappings"). Kernel build times on arm64 improved nicely. Ryan's
series "Address some contpte nits" provides some followup work.
- In the series "mm/hugetlb: Restore the reservation" Breno Leitao has
fixed an obscure hugetlb race which was causing unnecessary page
faults. He has also added a reproducer under the selftest code.
- In the series "selftests/mm: Output cleanups for the compaction
test", Mark Brown did what the title claims.
- Kinsey Ho has added the series "mm/mglru: code cleanup and
refactoring".
- Even more zswap material from Nhat Pham. The series "fix and extend
zswap kselftests" does as claimed.
- In the series "Introduce cpu_dcache_is_aliasing() to fix DAX
regression" Mathieu Desnoyers has cleaned up and fixed rather a mess
in our handling of DAX on archiecctures which have virtually aliasing
data caches. The arm architecture is the main beneficiary.
- Lokesh Gidra's series "per-vma locks in userfaultfd" provides
dramatic improvements in worst-case mmap_lock hold times during
certain userfaultfd operations.
- Some page_owner enhancements and maintenance work from Oscar Salvador
in his series
"page_owner: print stacks and their outstanding allocations"
"page_owner: Fixup and cleanup"
- Uladzislau Rezki has contributed some vmalloc scalability
improvements in his series "Mitigate a vmap lock contention". It
realizes a 12x improvement for a certain microbenchmark.
- Some kexec/crash cleanup work from Baoquan He in the series "Split
crash out from kexec and clean up related config items".
- Some zsmalloc maintenance work from Chengming Zhou in the series
"mm/zsmalloc: fix and optimize objects/page migration"
"mm/zsmalloc: some cleanup for get/set_zspage_mapping()"
- Zi Yan has taught the MM to perform compaction on folios larger than
order=0. This a step along the path to implementaton of the merging
of large anonymous folios. The series is named "Enable >0 order folio
memory compaction".
- Christoph Hellwig has done quite a lot of cleanup work in the
pagecache writeback code in his series "convert write_cache_pages()
to an iterator".
- Some modest hugetlb cleanups and speedups in Vishal Moola's series
"Handle hugetlb faults under the VMA lock".
- Zi Yan has changed the page splitting code so we can split huge pages
into sizes other than order-0 to better utilize large folios. The
series is named "Split a folio to any lower order folios".
- David Hildenbrand has contributed the series "mm: remove
total_mapcount()", a cleanup.
- Matthew Wilcox has sought to improve the performance of bulk memory
freeing in his series "Rearrange batched folio freeing".
- Gang Li's series "hugetlb: parallelize hugetlb page init on boot"
provides large improvements in bootup times on large machines which
are configured to use large numbers of hugetlb pages.
- Matthew Wilcox's series "PageFlags cleanups" does that.
- Qi Zheng's series "minor fixes and supplement for ptdesc" does that
also. S390 is affected.
- Cleanups to our pagemap utility functions from Peter Xu in his series
"mm/treewide: Replace pXd_large() with pXd_leaf()".
- Nico Pache has fixed a few things with our hugepage selftests in his
series "selftests/mm: Improve Hugepage Test Handling in MM
Selftests".
- Also, of course, many singleton patches to many things. Please see
the individual changelogs for details.
* tag 'mm-stable-2024-03-13-20-04' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (435 commits)
mm/zswap: remove the memcpy if acomp is not sleepable
crypto: introduce: acomp_is_async to expose if comp drivers might sleep
memtest: use {READ,WRITE}_ONCE in memory scanning
mm: prohibit the last subpage from reusing the entire large folio
mm: recover pud_leaf() definitions in nopmd case
selftests/mm: skip the hugetlb-madvise tests on unmet hugepage requirements
selftests/mm: skip uffd hugetlb tests with insufficient hugepages
selftests/mm: dont fail testsuite due to a lack of hugepages
mm/huge_memory: skip invalid debugfs new_order input for folio split
mm/huge_memory: check new folio order when split a folio
mm, vmscan: retry kswapd's priority loop with cache_trim_mode off on failure
mm: add an explicit smp_wmb() to UFFDIO_CONTINUE
mm: fix list corruption in put_pages_list
mm: remove folio from deferred split list before uncharging it
filemap: avoid unnecessary major faults in filemap_fault()
mm,page_owner: drop unnecessary check
mm,page_owner: check for null stack_record before bumping its refcount
mm: swap: fix race between free_swap_and_cache() and swapoff()
mm/treewide: align up pXd_leaf() retval across archs
mm/treewide: drop pXd_large()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull PCI updates from Bjorn Helgaas:
"Enumeration:
- Consolidate interrupt related code in irq.c (Ilpo Järvinen)
- Reduce kernel size by replacing sysfs resource macros with
functions (Ilpo Järvinen)
- Reduce kernel size by compiling sysfs support only when
CONFIG_SYSFS=y (Lukas Wunner)
- Avoid using Extended Tags on 3ware-9650SE Root Port to work around
an apparent hardware defect (Jörg Wedekind)
Resource management:
- Fix an MMIO mapping leak in pci_iounmap() (Philipp Stanner)
- Move pci_iomap.c and other PCI-specific devres code to drivers/pci
(Philipp Stanner)
- Consolidate PCI devres code in devres.c (Philipp Stanner)
Power management:
- Avoid D3cold on Asus B1400 PCI-NVMe bridge, where firmware doesn't
know how to return correctly to D0, and remove previous quirk that
wasn't as specific (Daniel Drake)
- Allow runtime PM when the driver enables it but doesn't need any
runtime PM callbacks (Raag Jadav)
- Drain runtime-idle callbacks before driver removal to avoid races
between .remove() and .runtime_idle(), which caused intermittent
page faults when the rtsx .runtime_idle() accessed registers that
its .remove() had already unmapped (Rafael J. Wysocki)
Virtualization:
- Avoid Secondary Bus Reset on LSI FW643 so it can be assigned to VMs
with VFIO, e.g., for professional audio software on many Apple
machines, at the cost of leaking state between VMs (Edmund Raile)
Error handling:
- Print all logged TLP Prefixes, not just the first, after AER or DPC
errors (Ilpo Järvinen)
- Quirk the DPC PIO log size for Intel Raptor Lake Root Ports, which
still don't advertise a legal size (Paul Menzel)
- Ignore expected DPC Surprise Down errors on hot removal (Smita
Koralahalli)
- Block runtime suspend while handling AER errors to avoid races that
prevent the device form being resumed from D3hot (Stanislaw
Gruszka)
Peer-to-peer DMA:
- Use atomic XA allocation in RCU read section (Christophe JAILLET)
ASPM:
- Collect bits of ASPM-related code that we need even without
CONFIG_PCIEASPM into aspm.c (David E. Box)
- Save/restore L1 PM Substates config for suspend/resume (David E.
Box)
- Update save_save when ASPM config is changed, so a .slot_reset()
during error recovery restores the changed config, not the
.probe()-time config (Vidya Sagar)
Endpoint framework:
- Refactor and improve pci_epf_alloc_space() API (Niklas Cassel)
- Clean up endpoint BAR descriptions (Niklas Cassel)
- Fix ntb_register_device() name leak in error path (Yang Yingliang)
- Return actual error code for pci_vntb_probe() failure (Yang
Yingliang)
Broadcom STB PCIe controller driver:
- Fix MDIO write polling, which previously never waited for
completion (Jonathan Bell)
Cadence PCIe endpoint driver:
- Clear the ARI "Next Function Number" of last function (Jasko-EXT
Wojciech)
Freescale i.MX6 PCIe controller driver:
- Simplify by replacing switch statements with function pointers for
different hardware variants (Frank Li)
- Simplify by using clk_bulk*() API (Frank Li)
- Remove redundant DT clock and reg/reg-name details (Frank Li)
- Add i.MX95 DT and driver support for both Root Complex and Endpoint
mode (Frank Li)
Microsoft Hyper-V host bridge driver:
- Reduce memory usage by limiting ring buffer size to 16KB instead of
4 pages (Michael Kelley)
Qualcomm PCIe controller driver:
- Add X1E80100 DT and driver support (Abel Vesa)
- Add DT 'required-opps' for SoCs that require a minimum performance
level (Johan Hovold)
- Make DT 'msi-map-mask' optional, depending on how MSI interrupts
are mapped (Johan Hovold)
- Disable ASPM L0s for sc8280xp, sa8540p and sa8295p because the PHY
configuration isn't tuned correctly for L0s (Johan Hovold)
- Split dt-binding qcom,pcie.yaml into qcom,pcie-common.yaml and
separate files for SA8775p, SC7280, SC8180X, SC8280XP, SM8150,
SM8250, SM8350, SM8450, SM8550 for easier reviewing (Krzysztof
Kozlowski)
- Enable BDF to SID translation by disabling bypass mode (Manivannan
Sadhasivam)
- Add endpoint MHI support for Snapdragon SA8775P SoC (Mrinmay
Sarkar)
Synopsys DesignWare PCIe controller driver:
- Allocate 64-bit MSI address if no 32-bit address is available (Ajay
Agarwal)
- Fix endpoint Resizable BAR to actually advertise the required 1MB
size (Niklas Cassel)
MicroSemi Switchtec management driver:
- Release resources if the .probe() fails (Christophe JAILLET)
Miscellaneous:
- Make pcie_port_bus_type const (Ricardo B. Marliere)"
* tag 'pci-v6.9-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (77 commits)
PCI/ASPM: Update save_state when configuration changes
PCI/ASPM: Disable L1 before configuring L1 Substates
PCI/ASPM: Call pci_save_ltr_state() from pci_save_pcie_state()
PCI/ASPM: Save L1 PM Substates Capability for suspend/resume
PCI: hv: Fix ring buffer size calculation
PCI: dwc: endpoint: Fix advertised resizable BAR size
PCI: cadence: Clear the ARI Capability Next Function Number of the last function
PCI: dwc: Strengthen the MSI address allocation logic
PCI: brcmstb: Fix broken brcm_pcie_mdio_write() polling
PCI: qcom: Add X1E80100 PCIe support
dt-bindings: PCI: qcom: Document the X1E80100 PCIe Controller
PCI: qcom: Enable BDF to SID translation properly
PCI/AER: Generalize TLP Header Log reading
PCI/AER: Use explicit register size for PCI_ERR_CAP
PCI: qcom: Disable ASPM L0s for sc8280xp, sa8540p and sa8295p
dt-bindings: PCI: qcom: Do not require 'msi-map-mask'
dt-bindings: PCI: qcom: Allow 'required-opps'
PCI/AER: Block runtime suspend when handling errors
PCI/ASPM: Move pci_save_ltr_state() to aspm.c
PCI/ASPM: Always build aspm.c
...
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this code originally used the page allocator directly, but most code
shouldn't do that - PAGE_SIZE varies with architecture, and slab is
faster.
4k is also on the large side for typical usage, 512 bytes is a better
choice for typical usage that might be somewhat sparse.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux
Pull modules updates from Luis Chamberlain:
"Christophe Leroy did most of the work on this release, first with a
few cleanups on CONFIG_STRICT_KERNEL_RWX and ending with error
handling for when set_memory_XX() can fail.
This is part of a larger effort to clean up all these callers which
can fail, modules is just part of it"
* tag 'modules-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux:
module: Don't ignore errors from set_memory_XX()
lib/test_kmod: fix kernel-doc warnings
powerpc: Simplify strict_kernel_rwx_enabled()
modules: Remove #ifdef CONFIG_STRICT_MODULE_RWX around rodata_enabled
init: Declare rodata_enabled and mark_rodata_ro() at all time
module: Change module_enable_{nx/x/ro}() to more explicit names
module: Use set_memory_rox()
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