Commit Graph

1324506 Commits

Author SHA1 Message Date
Linus Torvalds
4aa748dd1a 25 hotfixes. 16 are cc:stable. 19 are MM and 6 are non-MM.
The usual bunch of singletons and doubletons - please see the relevant
 changelogs for details.
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Merge tag 'mm-hotfixes-stable-2024-12-21-12-09' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "25 hotfixes.  16 are cc:stable.  19 are MM and 6 are non-MM.

  The usual bunch of singletons and doubletons - please see the relevant
  changelogs for details"

* tag 'mm-hotfixes-stable-2024-12-21-12-09' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (25 commits)
  mm: huge_memory: handle strsep not finding delimiter
  alloc_tag: fix set_codetag_empty() when !CONFIG_MEM_ALLOC_PROFILING_DEBUG
  alloc_tag: fix module allocation tags populated area calculation
  mm/codetag: clear tags before swap
  mm/vmstat: fix a W=1 clang compiler warning
  mm: convert partially_mapped set/clear operations to be atomic
  nilfs2: fix buffer head leaks in calls to truncate_inode_pages()
  vmalloc: fix accounting with i915
  mm/page_alloc: don't call pfn_to_page() on possibly non-existent PFN in split_large_buddy()
  fork: avoid inappropriate uprobe access to invalid mm
  nilfs2: prevent use of deleted inode
  zram: fix uninitialized ZRAM not releasing backing device
  zram: refuse to use zero sized block device as backing device
  mm: use clear_user_(high)page() for arch with special user folio handling
  mm: introduce cpu_icache_is_aliasing() across all architectures
  mm: add RCU annotation to pte_offset_map(_lock)
  mm: correctly reference merged VMA
  mm: use aligned address in copy_user_gigantic_page()
  mm: use aligned address in clear_gigantic_page()
  mm: shmem: fix ShmemHugePages at swapout
  ...
2024-12-21 15:31:56 -08:00
Steven Rostedt
e84a3bf7f4 staging: gpib: Fix allyesconfig build failures
My tests run an allyesconfig build and it failed with the following errors:

    LD [M]  samples/kfifo/dma-example.ko
  ld.lld: error: undefined symbol: nec7210_board_reset
  ld.lld: error: undefined symbol: nec7210_read
  ld.lld: error: undefined symbol: nec7210_write

It appears that some modules call the function nec7210_board_reset()
that is defined in nec7210.c.  In an allyesconfig build, these other
modules are built in.  But the file that holds nec7210_board_reset()
has:

  obj-m += nec7210.o

Where that "-m" means it only gets built as a module. With the other
modules built in, they have no access to nec7210_board_reset() and the build
fails.

This isn't the only function. After fixing that one, I hit another:

  ld.lld: error: undefined symbol: push_gpib_event
  ld.lld: error: undefined symbol: gpib_match_device_path

Where push_gpib_event() was also used outside of the file it was defined
in, and that file too only was built as a module.

Since the directory that nec7210.c is only traversed when
CONFIG_GPIB_NEC7210 is set, and the directory with gpib_common.c is only
traversed when CONFIG_GPIB_COMMON is set, use those configs as the
option to build those modules.  When it is an allyesconfig, then they
will both be built in and their functions will be available to the other
modules that are also built in.

Fixes: 3ba84ac69b ("staging: gpib: Add nec7210 GPIB chip driver")
Fixes: 9dde4559e9 ("staging: gpib: Add GPIB common core driver")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-12-21 11:30:13 -08:00
Linus Torvalds
a016546ba6 Kbuild fixes for v6.13 (2nd)
- Remove stale code in usr/include/headers_check.pl
 
  - Fix issues in the user-mode-linux Debian package
 
  - Fix false-positive "export twice" errors in modpost
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Merge tag 'kbuild-fixes-v6.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - Remove stale code in usr/include/headers_check.pl

 - Fix issues in the user-mode-linux Debian package

 - Fix false-positive "export twice" errors in modpost

* tag 'kbuild-fixes-v6.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  modpost: distinguish same module paths from different dump files
  kbuild: deb-pkg: Do not install maint scripts for arch 'um'
  kbuild: deb-pkg: add debarch for ARCH=um
  kbuild: Drop support for include/asm-<arch> in headers_check.pl
2024-12-21 11:24:32 -08:00
Linus Torvalds
9c707ba99f BPF fixes:
- Fix inlining of bpf_get_smp_processor_id helper for !CONFIG_SMP
   systems (Andrea Righi)
 
 - Fix BPF USDT selftests helper code to use asm constraint "m"
   for LoongArch (Tiezhu Yang)
 
 - Fix BPF selftest compilation error in get_uprobe_offset when
   PROCMAP_QUERY is not defined (Jerome Marchand)
 
 - Fix BPF bpf_skb_change_tail helper when used in context of
   BPF sockmap to handle negative skb header offsets (Cong Wang)
 
 - Several fixes to BPF sockmap code, among others, in the area
   of socket buffer accounting (Levi Zim, Zijian Zhang, Cong Wang)
 
 Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

Pull BPF fixes from Daniel Borkmann:

 - Fix inlining of bpf_get_smp_processor_id helper for !CONFIG_SMP
   systems (Andrea Righi)

 - Fix BPF USDT selftests helper code to use asm constraint "m" for
   LoongArch (Tiezhu Yang)

 - Fix BPF selftest compilation error in get_uprobe_offset when
   PROCMAP_QUERY is not defined (Jerome Marchand)

 - Fix BPF bpf_skb_change_tail helper when used in context of BPF
   sockmap to handle negative skb header offsets (Cong Wang)

 - Several fixes to BPF sockmap code, among others, in the area of
   socket buffer accounting (Levi Zim, Zijian Zhang, Cong Wang)

* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  selftests/bpf: Test bpf_skb_change_tail() in TC ingress
  selftests/bpf: Introduce socket_helpers.h for TC tests
  selftests/bpf: Add a BPF selftest for bpf_skb_change_tail()
  bpf: Check negative offsets in __bpf_skb_min_len()
  tcp_bpf: Fix copied value in tcp_bpf_sendmsg
  skmsg: Return copied bytes in sk_msg_memcopy_from_iter
  tcp_bpf: Add sk_rmem_alloc related logic for tcp_bpf ingress redirection
  tcp_bpf: Charge receive socket buffer in bpf_tcp_ingress()
  selftests/bpf: Fix compilation error in get_uprobe_offset()
  selftests/bpf: Use asm constraint "m" for LoongArch
  bpf: Fix bpf_get_smp_processor_id() on !CONFIG_SMP
2024-12-21 11:07:19 -08:00
Linus Torvalds
876685ce5e [GIT PULL for 6.13-rc4] media fixes
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Merge tag 'media/v6.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:

 - fix a clang build issue with mediatec vcodec

 - add missing variable initialization to dib3000mb write function

* tag 'media/v6.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  media: mediatek: vcodec: mark vdec_vp9_slice_map_counts_eob_coef noinline
  media: dvb-frontends: dib3000mb: fix uninit-value in dib3000_write_reg
2024-12-21 10:56:34 -08:00
Linus Torvalds
a99b4a369a PCI fixes for Linux 6.13
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Merge tag 'pci-v6.13-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull PCI fixes from Krzysztof Wilczyński:
 "Two small patches that are important for fixing boot time hang on
  Intel JHL7540 'Titan Ridge' platforms equipped with a Thunderbolt
  controller.

  The boot time issue manifests itself when a PCI Express bandwidth
  control is unnecessarily enabled on the Thunderbolt controller
  downstream ports, which only supports a link speed of 2.5 GT/s in
  accordance with USB4 v2 specification (p. 671, sec. 11.2.1, "PCIe
  Physical Layer Logical Sub-block").

  As such, there is no need to enable bandwidth control on such
  downstream port links, which also works around the issue.

  Both patches were tested by the original reporter on the hardware on
  which the failure origin golly manifested itself. Both fixes were
  proven to resolve the reported boot hang issue, and both patches have
  been in linux-next this week with no reported problems"

* tag 'pci-v6.13-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
  PCI/bwctrl: Enable only if more than one speed is supported
  PCI: Honor Max Link Speed when determining supported speeds
2024-12-21 10:51:04 -08:00
Linus Torvalds
78b1346123 Power management fixes for 6.13-rc4
- Detect preferred core support in amd-pstate  before driver
    registration to avoid initialization ordering issues (K Prateek
    Nayak).
 
  - Fix issues with with boost numerator handling in amd-pstate leading
    to inconsistently programmed CPPC max performance values (Mario
    Limonciello).
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Merge tag 'pm-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These fix some amd-pstate driver issues:

   - Detect preferred core support in amd-pstate before driver
     registration to avoid initialization ordering issues (K Prateek
     Nayak)

   - Fix issues with with boost numerator handling in amd-pstate leading
     to inconsistently programmed CPPC max performance values (Mario
     Limonciello)"

* tag 'pm-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq/amd-pstate: Use boost numerator for upper bound of frequencies
  cpufreq/amd-pstate: Store the boost numerator as highest perf again
  cpufreq/amd-pstate: Detect preferred core support before driver registration
2024-12-21 10:47:47 -08:00
Linus Torvalds
be6bb3619e Thermal control fixes for 6.13-rc4
Fix two issues with the user thermal thresholds feature introduced
 in this development cycle (Daniel Lezcano).
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Merge tag 'thermal-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull thermal control fixes from Rafael Wysocki:
 "Fix two issues with the user thermal thresholds feature introduced in
  this development cycle (Daniel Lezcano)"

* tag 'thermal-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  thermal/thresholds: Fix boundaries and detection routine
  thermal/thresholds: Fix uapi header macros leading to a compilation error
2024-12-21 10:44:44 -08:00
Linus Torvalds
5100b6f9e7 ACPI fix for 6.13-rc4
Unbreak ACPI EC support on LoongArch that has been broken earlier
 in this development cycle (Huacai Chen).
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Merge tag 'acpi-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fix from Rafael Wysocki:
 "Unbreak ACPI EC support on LoongArch that has been broken earlier in
  this development cycle (Huacai Chen)"

* tag 'acpi-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: EC: Enable EC support on LoongArch by default
2024-12-21 10:42:35 -08:00
Linus Torvalds
baa172c77a four smb3 client fixes
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Merge tag '6.13-rc3-SMB3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fixes from Steve French:

 - fix regression in display of write stats

 - fix rmmod failure with network namespaces

 - two minor cleanups

* tag '6.13-rc3-SMB3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  smb: fix bytes written value in /proc/fs/cifs/Stats
  smb: client: fix TCP timers deadlock after rmmod
  smb: client: Deduplicate "select NETFS_SUPPORT" in Kconfig
  smb: use macros instead of constants for leasekey size and default cifsattrs value
2024-12-21 09:35:18 -08:00
Linus Torvalds
4a5da3f5d3 NFS client bugfixes for Linux 6.13
Bugfixes:
 - NFS/pnfs: Fix a live lock between recalled layouts and layoutget
 - Fix a build warning about an undeclared symbol 'nfs_idmap_cache_timeout'
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Merge tag 'nfs-for-6.13-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client fixes from Trond Myklebust:

 - NFS/pnfs: Fix a live lock between recalled layouts and layoutget

 - Fix a build warning about an undeclared symbol 'nfs_idmap_cache_timeout'

* tag 'nfs-for-6.13-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  fs/nfs: fix missing declaration of nfs_idmap_cache_timeout
  NFS/pnfs: Fix a live lock between recalled layouts and layoutget
2024-12-21 09:32:24 -08:00
Linus Torvalds
7684392f17 A handful of important CephFS fixes from Max, Alex and myself: memory
corruption due to a buffer overrun, potential infinite loop and several
 memory leaks on the error paths.  All but one marked for stable.
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Merge tag 'ceph-for-6.13-rc4' of https://github.com/ceph/ceph-client

Pull ceph fixes from Ilya Dryomov:
 "A handful of important CephFS fixes from Max, Alex and myself: memory
  corruption due to a buffer overrun, potential infinite loop and
  several memory leaks on the error paths. All but one marked for
  stable"

* tag 'ceph-for-6.13-rc4' of https://github.com/ceph/ceph-client:
  ceph: allocate sparse_ext map only for sparse reads
  ceph: fix memory leak in ceph_direct_read_write()
  ceph: improve error handling and short/overflow-read logic in __ceph_sync_read()
  ceph: validate snapdirname option length when mounting
  ceph: give up on paths longer than PATH_MAX
  ceph: fix memory leaks in __ceph_sync_read()
2024-12-21 09:29:46 -08:00
Masahiro Yamada
9435dc77a3 modpost: distinguish same module paths from different dump files
Since commit 13b25489b6 ("kbuild: change working directory to external
module directory with M="), module paths are always relative to the top
of the external module tree.

The module paths recorded in Module.symvers are no longer globally unique
when they are passed via KBUILD_EXTRA_SYMBOLS for building other external
modules, which may result in false-positive "exported twice" errors.
Such errors should not occur because external modules should be able to
override in-tree modules.

To address this, record the dump file path in struct module and check it
when searching for a module.

Fixes: 13b25489b6 ("kbuild: change working directory to external module directory with M=")
Reported-by: Jon Hunter <jonathanh@nvidia.com>
Closes: https://lore.kernel.org/all/eb21a546-a19c-40df-b821-bbba80f19a3d@nvidia.com/
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
2024-12-21 12:42:10 +09:00
Nicolas Schier
54956567a0 kbuild: deb-pkg: Do not install maint scripts for arch 'um'
Stop installing Debian maintainer scripts when building a
user-mode-linux Debian package.

Debian maintainer scripts are used for e.g. requesting rebuilds of
initrd, rebuilding DKMS modules and updating of grub configuration.  As
all of this is not relevant for UML but also may lead to failures while
processing the kernel hooks, do no more install maintainer scripts for
the UML package.

Suggested-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Nicolas Schier <nicolas@fjasle.eu>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2024-12-21 12:42:10 +09:00
Masahiro Yamada
a34e92d2e8 kbuild: deb-pkg: add debarch for ARCH=um
'make ARCH=um bindeb-pkg' shows the following warning.

  $ make ARCH=um bindeb-pkg
     [snip]
    GEN     debian

  ** ** **  WARNING  ** ** **

  Your architecture doesn't have its equivalent
  Debian userspace architecture defined!
  Falling back to the current host architecture (amd64).
  Please add support for um to ./scripts/package/mkdebian ...

This commit hard-codes i386/amd64 because UML is only supported for x86.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
2024-12-21 12:42:04 +09:00
Geert Uytterhoeven
d67393f4d2 kbuild: Drop support for include/asm-<arch> in headers_check.pl
"include/asm-<arch>" was replaced by "arch/<arch>/include/asm" a long
time ago.  All assembler header files are now included using
"#include <asm/*>", so there is no longer a need to rewrite paths.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2024-12-21 11:43:17 +09:00
Cong Wang
4a58963d10 selftests/bpf: Test bpf_skb_change_tail() in TC ingress
Similarly to the previous test, we also need a test case to cover
positive offsets as well, TC is an excellent hook for this.

Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Zijian Zhang <zijianzhang@bytedance.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20241213034057.246437-5-xiyou.wangcong@gmail.com
2024-12-20 23:13:31 +01:00
Cong Wang
472759c9f5 selftests/bpf: Introduce socket_helpers.h for TC tests
Pull socket helpers out of sockmap_helpers.h so that they can be reused
for TC tests as well. This prepares for the next patch.

Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20241213034057.246437-4-xiyou.wangcong@gmail.com
2024-12-20 23:13:31 +01:00
Cong Wang
9ee0c7b865 selftests/bpf: Add a BPF selftest for bpf_skb_change_tail()
As requested by Daniel, we need to add a selftest to cover
bpf_skb_change_tail() cases in skb_verdict. Here we test trimming,
growing and error cases, and validate its expected return values and the
expected sizes of the payload.

Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20241213034057.246437-3-xiyou.wangcong@gmail.com
2024-12-20 23:13:31 +01:00
Cong Wang
9ecc4d858b bpf: Check negative offsets in __bpf_skb_min_len()
skb_network_offset() and skb_transport_offset() can be negative when
they are called after we pull the transport header, for example, when
we use eBPF sockmap at the point of ->sk_data_ready().

__bpf_skb_min_len() uses an unsigned int to get these offsets, this
leads to a very large number which then causes bpf_skb_change_tail()
failed unexpectedly.

Fix this by using a signed int to get these offsets and ensure the
minimum is at least zero.

Fixes: 5293efe62d ("bpf: add bpf_skb_change_tail helper")
Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20241213034057.246437-2-xiyou.wangcong@gmail.com
2024-12-20 23:13:31 +01:00
Linus Torvalds
499551201b Fix a sparse warning in the arm64 signal code dealing with the user
shadow stack register, GCSPR_EL0.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fix from Catalin Marinas:
 "Fix a sparse warning in the arm64 signal code dealing with the user
  shadow stack register, GCSPR_EL0"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64/signal: Silence sparse warning storing GCSPR_EL0
2024-12-20 14:10:01 -08:00
Levi Zim
5153a75ef3 tcp_bpf: Fix copied value in tcp_bpf_sendmsg
bpf kselftest sockhash::test_txmsg_cork_hangs in test_sockmap.c triggers a
kernel NULL pointer dereference:

BUG: kernel NULL pointer dereference, address: 0000000000000008
 ? __die_body+0x6e/0xb0
 ? __die+0x8b/0xa0
 ? page_fault_oops+0x358/0x3c0
 ? local_clock+0x19/0x30
 ? lock_release+0x11b/0x440
 ? kernelmode_fixup_or_oops+0x54/0x60
 ? __bad_area_nosemaphore+0x4f/0x210
 ? mmap_read_unlock+0x13/0x30
 ? bad_area_nosemaphore+0x16/0x20
 ? do_user_addr_fault+0x6fd/0x740
 ? prb_read_valid+0x1d/0x30
 ? exc_page_fault+0x55/0xd0
 ? asm_exc_page_fault+0x2b/0x30
 ? splice_to_socket+0x52e/0x630
 ? shmem_file_splice_read+0x2b1/0x310
 direct_splice_actor+0x47/0x70
 splice_direct_to_actor+0x133/0x300
 ? do_splice_direct+0x90/0x90
 do_splice_direct+0x64/0x90
 ? __ia32_sys_tee+0x30/0x30
 do_sendfile+0x214/0x300
 __se_sys_sendfile64+0x8e/0xb0
 __x64_sys_sendfile64+0x25/0x30
 x64_sys_call+0xb82/0x2840
 do_syscall_64+0x75/0x110
 entry_SYSCALL_64_after_hwframe+0x4b/0x53

This is caused by tcp_bpf_sendmsg() returning a larger value(12289) than
size (8192), which causes the while loop in splice_to_socket() to release
an uninitialized pipe buf.

The underlying cause is that this code assumes sk_msg_memcopy_from_iter()
will copy all bytes upon success but it actually might only copy part of
it.

This commit changes it to use the real copied bytes.

Signed-off-by: Levi Zim <rsworktech@outlook.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Björn Töpel <bjorn@kernel.org>
Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20241130-tcp-bpf-sendmsg-v1-2-bae583d014f3@outlook.com
2024-12-20 22:53:36 +01:00
Levi Zim
fdf478d236 skmsg: Return copied bytes in sk_msg_memcopy_from_iter
Previously sk_msg_memcopy_from_iter returns the copied bytes from the
last copy_from_iter{,_nocache} call upon success.

This commit changes it to return the total number of copied bytes on
success.

Signed-off-by: Levi Zim <rsworktech@outlook.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Björn Töpel <bjorn@kernel.org>
Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20241130-tcp-bpf-sendmsg-v1-1-bae583d014f3@outlook.com
2024-12-20 22:53:36 +01:00
Linus Torvalds
d74276290c hwmon fixes for v6.13-rc4
* Fix reporting of negative temperature, current, and voltage values
   in tmp513 driver
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Merge tag 'hwmon-for-v6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:

 - Fix reporting of negative temperature, current, and voltage values in
   the tmp513 driver

* tag 'hwmon-for-v6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (tmp513) Fix interpretation of values of Temperature Result and Limit Registers
  hwmon: (tmp513) Fix Current Register value interpretation
  hwmon: (tmp513) Fix interpretation of values of Shunt Voltage and Limit Registers
2024-12-20 13:48:41 -08:00
Linus Torvalds
11167b29e5 block-6.13-20241220
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Merge tag 'block-6.13-20241220' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:

 - Minor cleanups for bdev/nvme using the helpers introduced

 - Revert of a deadlock fix that still needs more work

 - Fix a UAF of hctx in the cpu hotplug code

* tag 'block-6.13-20241220' of git://git.kernel.dk/linux:
  block: avoid to reuse `hctx` not removed from cpuhp callback list
  block: Revert "block: Fix potential deadlock while freezing queue and acquiring sysfs_lock"
  nvme: use blk_validate_block_size() for max LBA check
  block/bdev: use helper for max block size check
2024-12-20 13:37:58 -08:00
Linus Torvalds
7c05bd9230 io_uring-6.13-20241220
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Merge tag 'io_uring-6.13-20241220' of git://git.kernel.dk/linux

Pull io_uring fixes from Jens Axboe:

 - Fix for a file ref leak for registered ring fds

 - Turn the ->timeout_lock into a raw spinlock, as it nests under the
   io-wq lock which is a raw spinlock as it's called from the scheduler
   side

 - Limit ring resizing to DEFER_TASKRUN for now. We will broaden this in
   the future, but for now, ensure that it's only feasible on rings with
   a single user

 - Add sanity check for io-wq enqueuing

* tag 'io_uring-6.13-20241220' of git://git.kernel.dk/linux:
  io_uring: check if iowq is killed before queuing
  io_uring/register: limit ring resizing to DEFER_TASKRUN
  io_uring: Fix registered ring file refcount leak
  io_uring: make ctx->timeout_lock a raw spinlock
2024-12-20 13:32:43 -08:00
Linus Torvalds
e9b8ffafd2 USB / Thunderbolt fixes for 6.13-rc4
Here are some important, and small, fixes for USB and Thunderbolt issues
 that have come up in the -rc releases.  And some new device ids for good
 measure.  Included in here are:
   - Much reported xhci bugfix for usb-storage devices (and other devices
     as well, tripped me up on a video camera)
   - thunderbolt fixes for some small reported issues
   - new usb-serial device ids
 
 All of these have been in linux-next this week with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB / Thunderbolt fixes from Greg KH:
 "Here are some important, and small, fixes for USB and Thunderbolt
  issues that have come up in the -rc releases. And some new device ids
  for good measure. Included in here are:

   - Much reported xhci bugfix for usb-storage devices (and other
     devices as well, tripped me up on a video camera)

   - thunderbolt fixes for some small reported issues

   - new usb-serial device ids

  All of these have been in linux-next this week with no reported issues"

* tag 'usb-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: xhci: fix ring expansion regression in 6.13-rc1
  xhci: Turn NEC specific quirk for handling Stop Endpoint errors generic
  thunderbolt: Improve redrive mode handling
  USB: serial: option: add Telit FE910C04 rmnet compositions
  USB: serial: option: add MediaTek T7XX compositions
  USB: serial: option: add Netprisma LCUK54 modules for WWAN Ready
  USB: serial: option: add MeiG Smart SLM770A
  USB: serial: option: add TCL IK512 MBIM & ECM
  thunderbolt: Don't display nvm_version unless upgrade supported
  thunderbolt: Add support for Intel Panther Lake-M/P
2024-12-20 11:09:40 -08:00
Linus Torvalds
5127e1495b spi: Fix for v6.13
A fix for the remove path of the Rockchip driver, the code was just
 clearly and obviously wrong.
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Merge tag 'spi-fix-v6.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fix from Mark Brown:
 "A fix for the remove path of the Rockchip driver, the code was just
  clearly and obviously wrong"

* tag 'spi-fix-v6.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: rockchip-sfc: Fix error in remove progress
2024-12-20 11:06:25 -08:00
Linus Torvalds
b648264cd4 regulator: Fix for v6.13
The recently added regulator-uv-survival-time-ms property was renamed
 during the review of the series that added it, but unfortunately only in
 the DT binding and not in the code that parses the binding.  This change
 brings the code in line with the binding, if someone started using the
 original name we can add compat support for it but there's nothing
 upstream yet and it's a very niche feature so hopefully not.
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Merge tag 'regulator-fix-v6.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fix from Mark Brown:
 "The recently added regulator-uv-survival-time-ms property was renamed
  during the review of the series that added it, but unfortunately only
  in the DT binding and not in the code that parses the binding.

  This brings the code in line with the binding, if someone started
  using the original name we can add compat support for it but there's
  nothing upstream yet and it's a very niche feature so hopefully not"

* tag 'regulator-fix-v6.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: rename regulator-uv-survival-time-ms according to DT binding
2024-12-20 11:04:02 -08:00
Linus Torvalds
af215c980c drm fixes for 6.13-rc4
core:
 - fix FB dependency
 - avoid div by 0 more in vrefresh
 - maintainers update
 
 display:
 - fix DP tunnel error path
 
 dma-buf:
 - fix !DEBUG_FS
 
 sched:
 - docs warning fix
 
 panel:
 - collection of misc panel fixes
 
 i915
 - Reset engine utilization buffer before registration
 - Ensure busyness counter increases motonically
 - Accumulate active runtime on gt reset
 
 amdgpu:
 - Disable BOCO when CONFIG_HOTPLUG_PCI_PCIE is not enabled
 - scheduler job fixes
 - IP version check fixes
 - devcoredump fix
 - GPUVM update fix
 - NBIO 2.5 fix
 
 udmabuf:
 - fix memory leak on last export
 - sealing fixes
 
 ivpu:
 - fix NULL pointer
 - fix memory leak
 - fix WARN
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Merge tag 'drm-fixes-2024-12-20' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "Probably the last pull before Christmas holidays, I'll still be around
  for most of the time anyways, nothing too major in here, bunch of
  amdgpu and i915 along with a smattering of fixes across the board.

  core:
   - fix FB dependency
   - avoid div by 0 more in vrefresh
   - maintainers update

  display:
   - fix DP tunnel error path

  dma-buf:
   - fix !DEBUG_FS

  sched:
   - docs warning fix

  panel:
   - collection of misc panel fixes

  i915:
   - Reset engine utilization buffer before registration
   - Ensure busyness counter increases motonically
   - Accumulate active runtime on gt reset

  amdgpu:
   - Disable BOCO when CONFIG_HOTPLUG_PCI_PCIE is not enabled
   - scheduler job fixes
   - IP version check fixes
   - devcoredump fix
   - GPUVM update fix
   - NBIO 2.5 fix

  udmabuf:
   - fix memory leak on last export
   - sealing fixes

  ivpu:
   - fix NULL pointer
   - fix memory leak
   - fix WARN"

* tag 'drm-fixes-2024-12-20' of https://gitlab.freedesktop.org/drm/kernel: (33 commits)
  drm/sched: Fix drm_sched_fini() docu generation
  accel/ivpu: Fix WARN in ivpu_ipc_send_receive_internal()
  accel/ivpu: Fix memory leak in ivpu_mmu_reserved_context_init()
  accel/ivpu: Fix general protection fault in ivpu_bo_list()
  drm/amdgpu/nbio7.0: fix IP version check
  drm/amd: Update strapping for NBIO 2.5.0
  drm/amdgpu: Handle NULL bo->tbo.resource (again) in amdgpu_vm_bo_update
  drm/amdgpu: fix amdgpu_coredump
  drm/amdgpu/smu14.0.2: fix IP version check
  drm/amdgpu/gfx12: fix IP version check
  drm/amdgpu/mmhub4.1: fix IP version check
  drm/amdgpu/nbio7.11: fix IP version check
  drm/amdgpu/nbio7.7: fix IP version check
  drm/amdgpu: don't access invalid sched
  drm/amd: Require CONFIG_HOTPLUG_PCI_PCIE for BOCO
  drm: rework FB_CORE dependency
  drm/fbdev: Select FB_CORE dependency for fbdev on DMA and TTM
  fbdev: Fix recursive dependencies wrt BACKLIGHT_CLASS_DEVICE
  i915/guc: Accumulate active runtime on gt reset
  i915/guc: Ensure busyness counter increases motonically
  ...
2024-12-20 10:17:53 -08:00
Linus Torvalds
5b83bcdea5 ring-buffer fixes for v6.13:
- Fix possible overflow of mmapped ring buffer with bad offset
 
   If the mmap() to the ring buffer passes in a start address that
   is passed the end of the mmapped file, it is not caught and
   a slab-out-of-bounds is triggered.
 
   Add a check to make sure the start address is within the bounds
 
 - Do not use TP_printk() to boot mapped ring buffers
 
   As a boot mapped ring buffer's data may have pointers that map to
   the previous boot's memory map, it is unsafe to allow the TP_printk()
   to be used to read the boot mapped buffer's events. If a TP_printk()
   points to a static string from within the kernel it will not match
   the current kernel mapping if KASLR is active, and it can fault.
 
   Have it simply print out the raw fields.
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Merge tag 'trace-ringbuffer-v6.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull ring-buffer fixes from Steven Rostedt:

 - Fix possible overflow of mmapped ring buffer with bad offset

   If the mmap() to the ring buffer passes in a start address that is
   passed the end of the mmapped file, it is not caught and a
   slab-out-of-bounds is triggered.

   Add a check to make sure the start address is within the bounds

 - Do not use TP_printk() to boot mapped ring buffers

   As a boot mapped ring buffer's data may have pointers that map to the
   previous boot's memory map, it is unsafe to allow the TP_printk() to
   be used to read the boot mapped buffer's events. If a TP_printk()
   points to a static string from within the kernel it will not match
   the current kernel mapping if KASLR is active, and it can fault.

   Have it simply print out the raw fields.

* tag 'trace-ringbuffer-v6.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  trace/ring-buffer: Do not use TP_printk() formatting for boot mapped buffers
  ring-buffer: Fix overflow in __rb_map_vma
2024-12-20 10:13:26 -08:00
Zijian Zhang
d888b7af7c tcp_bpf: Add sk_rmem_alloc related logic for tcp_bpf ingress redirection
When we do sk_psock_verdict_apply->sk_psock_skb_ingress, an sk_msg will
be created out of the skb, and the rmem accounting of the sk_msg will be
handled by the skb.

For skmsgs in __SK_REDIRECT case of tcp_bpf_send_verdict, when redirecting
to the ingress of a socket, although we sk_rmem_schedule and add sk_msg to
the ingress_msg of sk_redir, we do not update sk_rmem_alloc. As a result,
except for the global memory limit, the rmem of sk_redir is nearly
unlimited. Thus, add sk_rmem_alloc related logic to limit the recv buffer.

Since the function sk_msg_recvmsg and __sk_psock_purge_ingress_msg are
used in these two paths. We use "msg->skb" to test whether the sk_msg is
skb backed up. If it's not, we shall do the memory accounting explicitly.

Fixes: 604326b41a ("bpf, sockmap: convert to generic sk_msg interface")
Signed-off-by: Zijian Zhang <zijianzhang@bytedance.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20241210012039.1669389-3-zijianzhang@bytedance.com
2024-12-20 17:59:47 +01:00
Cong Wang
54f89b3178 tcp_bpf: Charge receive socket buffer in bpf_tcp_ingress()
When bpf_tcp_ingress() is called, the skmsg is being redirected to the
ingress of the destination socket. Therefore, we should charge its
receive socket buffer, instead of sending socket buffer.

Because sk_rmem_schedule() tests pfmemalloc of skb, we need to
introduce a wrapper and call it for skmsg.

Fixes: 604326b41a ("bpf, sockmap: convert to generic sk_msg interface")
Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20241210012039.1669389-2-zijianzhang@bytedance.com
2024-12-20 17:59:47 +01:00
Mark Brown
926e862058 arm64/signal: Silence sparse warning storing GCSPR_EL0
We are seeing a sparse warning in gcs_restore_signal():

  arch/arm64/kernel/signal.c:1054:9: sparse: sparse: cast removes address space '__user' of expression

when storing the final GCSPR_EL0 value back into the register, caused by
the fact that write_sysreg_s() casts the value it writes to a u64 which
sparse sees as discarding the __userness of the pointer.

Avoid this by treating the address as an integer, casting to a pointer only
when using it to write to userspace.

While we're at it also inline gcs_signal_cap_valid() into it's one user
and make equivalent updates to gcs_signal_entry().

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202412082005.OBJ0BbWs-lkp@intel.com/
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20241214-arm64-gcs-signal-sparse-v3-1-5e8d18fffc0c@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2024-12-20 14:12:04 +00:00
Dave Airlie
e639fb046b amd-drm-fixes-6.13-2024-12-18:
amdgpu:
 - Disable BOCO when CONFIG_HOTPLUG_PCI_PCIE is not enabled
 - scheduler job fixes
 - IP version check fixes
 - devcoredump fix
 - GPUVM update fix
 - NBIO 2.5 fix
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Merge tag 'amd-drm-fixes-6.13-2024-12-18' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-6.13-2024-12-18:

amdgpu:
- Disable BOCO when CONFIG_HOTPLUG_PCI_PCIE is not enabled
- scheduler job fixes
- IP version check fixes
- devcoredump fix
- GPUVM update fix
- NBIO 2.5 fix

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241218204637.2966198-1-alexander.deucher@amd.com
2024-12-20 16:21:44 +10:00
Dave Airlie
87fd883325 Merge tag 'drm-misc-fixes-2024-12-19' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes
drm-misc-fixes for v6.13-rc4:
- udma-buf fixes related to sealing.
- dma-buf build warning fix when debugfs is not enabled.
- Assorted drm/panel fixes.
- Correct error return in drm_dp_tunnel_mgr_create.
- Fix even more divide by zero in drm_mode_vrefresh.
- Fix FBDEV dependencies in Kconfig.
- Documentation fix for drm_sched_fini.
- IVPU NULL pointer, memory leak and WARN fix.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/d0763051-87b7-483e-89e0-a9f993383450@linux.intel.com
2024-12-20 07:13:45 +10:00
Pavel Begunkov
dbd2ca9367 io_uring: check if iowq is killed before queuing
task work can be executed after the task has gone through io_uring
termination, whether it's the final task_work run or the fallback path.
In this case, task work will find ->io_wq being already killed and
null'ed, which is a problem if it then tries to forward the request to
io_queue_iowq(). Make io_queue_iowq() fail requests in this case.

Note that it also checks PF_KTHREAD, because the user can first close
a DEFER_TASKRUN ring and shortly after kill the task, in which case
->iowq check would race.

Cc: stable@vger.kernel.org
Fixes: 50c52250e2 ("block: implement async io_uring discard cmd")
Fixes: 773af69121 ("io_uring: always reissue from task_work context")
Reported-by: Will <willsroot@protonmail.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/63312b4a2c2bb67ad67b857d17a300e1d3b078e8.1734637909.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-12-19 13:31:53 -07:00
Bharath SM
92941c7f2c smb: fix bytes written value in /proc/fs/cifs/Stats
With recent netfs apis changes, the bytes written
value was not getting updated in /proc/fs/cifs/Stats.
Fix this by updating tcon->bytes in write operations.

Fixes: 3ee1a1fc39 ("cifs: Cut over to using netfslib")
Signed-off-by: Bharath SM <bharathsm@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-12-19 12:14:11 -06:00
Linus Torvalds
8faabc041a Including fixes from can and netfilter.
Current release - regressions:
 
   - rtnetlink: try the outer netns attribute in rtnl_get_peer_net().
 
   - rust: net::phy fix module autoloading
 
 Current release - new code bugs:
 
   - phy: avoid undefined behavior in *_led_polarity_set()
 
   - eth: octeontx2-pf: fix netdev memory leak in rvu_rep_create()
 
 Previous releases - regressions:
 
   - smc: check sndbuf_space again after NOSPACE flag is set in smc_poll
 
   - ipvs: fix clamp() of ip_vs_conn_tab on small memory systems
 
   - dsa: restore dsa_software_vlan_untag() ability to operate on VLAN-untagged traffic
 
   - eth: tun: fix tun_napi_alloc_frags()
 
   - eth: ionic: no double destroy workqueue
 
   - eth: idpf: trigger SW interrupt when exiting wb_on_itr mode
 
   - eth: rswitch: rework ts tags management
 
   - eth: team: fix feature exposure when no ports are present
 
 Previous releases - always broken:
 
   - core: fix repeated netlink messages in queue dump
 
   - mdiobus: fix an OF node reference leak
 
   - smc: check iparea_offset and ipv6_prefixes_cnt when receiving proposal msg
 
   - can: fix missed interrupts with m_can_pci
 
   - eth: oa_tc6: fix infinite loop error when tx credits becomes 0
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from can and netfilter.

  Current release - regressions:

   - rtnetlink: try the outer netns attribute in rtnl_get_peer_net()

   - rust: net::phy fix module autoloading

  Current release - new code bugs:

   - phy: avoid undefined behavior in *_led_polarity_set()

   - eth: octeontx2-pf: fix netdev memory leak in rvu_rep_create()

  Previous releases - regressions:

   - smc: check sndbuf_space again after NOSPACE flag is set in smc_poll

   - ipvs: fix clamp() of ip_vs_conn_tab on small memory systems

   - dsa: restore dsa_software_vlan_untag() ability to operate on
     VLAN-untagged traffic

   - eth:
       - tun: fix tun_napi_alloc_frags()
       - ionic: no double destroy workqueue
       - idpf: trigger SW interrupt when exiting wb_on_itr mode
       - rswitch: rework ts tags management
       - team: fix feature exposure when no ports are present

  Previous releases - always broken:

   - core: fix repeated netlink messages in queue dump

   - mdiobus: fix an OF node reference leak

   - smc: check iparea_offset and ipv6_prefixes_cnt when receiving
     proposal msg

   - can: fix missed interrupts with m_can_pci

   - eth: oa_tc6: fix infinite loop error when tx credits becomes 0"

* tag 'net-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (45 commits)
  net: mctp: handle skb cleanup on sock_queue failures
  net: mdiobus: fix an OF node reference leak
  octeontx2-pf: fix error handling of devlink port in rvu_rep_create()
  octeontx2-pf: fix netdev memory leak in rvu_rep_create()
  psample: adjust size if rate_as_probability is set
  netdev-genl: avoid empty messages in queue dump
  net: dsa: restore dsa_software_vlan_untag() ability to operate on VLAN-untagged traffic
  selftests: openvswitch: fix tcpdump execution
  net: usb: qmi_wwan: add Quectel RG255C
  net: phy: avoid undefined behavior in *_led_polarity_set()
  netfilter: ipset: Fix for recursive locking warning
  ipvs: Fix clamp() of ip_vs_conn_tab on small memory systems
  can: m_can: fix missed interrupts with m_can_pci
  can: m_can: set init flag earlier in probe
  rtnetlink: Try the outer netns attribute in rtnl_get_peer_net().
  net: netdevsim: fix nsim_pp_hold_write()
  idpf: trigger SW interrupt when exiting wb_on_itr mode
  idpf: add support for SW triggered interrupts
  qed: fix possible uninit pointer read in qed_mcp_nvm_info_populate()
  net: ethernet: bgmac-platform: fix an OF node reference leak
  ...
2024-12-19 09:19:11 -08:00
Linus Torvalds
baaa2567a7 MMC host:
- mtk-sd: Cleanup the wakeup configuration in error/remove-path
  - sdhci-tegra: Correct quirk for ADMA2 length
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Merge tag 'mmc-v6.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC fixes from Ulf Hansson:

 - mtk-sd: Cleanup the wakeup configuration in error/remove-path

 - sdhci-tegra: Correct quirk for ADMA2 length

* tag 'mmc-v6.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: mtk-sd: disable wakeup in .remove() and in the error path of .probe()
  mmc: sdhci-tegra: Remove SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC quirk
2024-12-19 08:53:51 -08:00
Linus Torvalds
a0db71c7fe pwm: Fix regression in pwm-stm32 driver when converting to new waveform support
Fabrice Gasnier found and fixed a regression I introduced with v6.13-rc1
 when converting the stm32 pwm driver to support the new waveform stuff.
 On some hardware variants this completely broke the driver.
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Merge tag 'pwm/for-6.13-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux

Pull pwm fix from Uwe Kleine-König:
 "Fix regression in pwm-stm32 driver when converting to new waveform
  support

  Fabrice Gasnier found and fixed a regression I introduced with
  v6.13-rc1 when converting the stm32 pwm driver to support the new
  waveform stuff. On some hardware variants this completely broke the
  driver"

* tag 'pwm/for-6.13-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux:
  pwm: stm32: Fix complementary output in round_waveform_tohw()
2024-12-19 08:50:05 -08:00
Linus Torvalds
466b2d40f6 three kernel server fixes
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Merge tag 'v6.13-rc3-ksmbd-server-fixes' of git://git.samba.org/ksmbd

Pull smb server fixes from Steve French:

 - Two fixes for better handling maximum outstanding requests

 - Fix simultaneous negotiate protocol race

* tag 'v6.13-rc3-ksmbd-server-fixes' of git://git.samba.org/ksmbd:
  ksmbd: conn lock to serialize smb2 negotiate
  ksmbd: fix broken transfers when exceeding max simultaneous operations
  ksmbd: count all requests in req_running counter
2024-12-19 08:45:37 -08:00
Lukas Wunner
774c71c52a
PCI/bwctrl: Enable only if more than one speed is supported
If a PCIe port only supports a single speed, enabling bandwidth control
is pointless:  There's no need to monitor autonomous speed changes, nor
can the speed be changed.

Not enabling it saves a small amount of memory and compute resources,
but also fixes a boot hang reported by Niklas:  It occurs when enabling
bandwidth control on Downstream Ports of Intel JHL7540 "Titan Ridge 2018"
Thunderbolt controllers.  The ports only support 2.5 GT/s in accordance
with USB4 v2 sec 11.2.1, so the present commit works around the issue.

PCIe r6.2 sec 8.2.1 prescribes that:

   "A device must support 2.5 GT/s and is not permitted to skip support
    for any data rates between 2.5 GT/s and the highest supported rate."

Consequently, bandwidth control is currently only disabled if a port
doesn't support higher speeds than 2.5 GT/s.  However the Implementation
Note in PCIe r6.2 sec 7.5.3.18 cautions:

   "It is strongly encouraged that software primarily utilize the
    Supported Link Speeds Vector instead of the Max Link Speed field,
    so that software can determine the exact set of supported speeds on
    current and future hardware.  This can avoid software being confused
    if a future specification defines Links that do not require support
    for all slower speeds."

In other words, future revisions of the PCIe Base Spec may allow gaps
in the Supported Link Speeds Vector.  To be future-proof, don't just
check whether speeds above 2.5 GT/s are supported, but rather check
whether *more than one* speed is supported.

Fixes: 665745f274 ("PCI/bwctrl: Re-add BW notification portdrv as PCIe BW controller")
Closes: https://lore.kernel.org/r/db8e457fcd155436449b035e8791a8241b0df400.camel@kernel.org
Link: https://lore.kernel.org/r/3564908a9c99fc0d2a292473af7a94ebfc8f5820.1734428762.git.lukas@wunner.de
Reported-by: Niklas Schnelle <niks@kernel.org>
Tested-by: Niklas Schnelle <niks@kernel.org>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Jonathan Cameron <Jonthan.Cameron@huawei.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2024-12-19 16:36:36 +00:00
Lukas Wunner
3202ca2215
PCI: Honor Max Link Speed when determining supported speeds
The Supported Link Speeds Vector in the Link Capabilities 2 Register
indicates the *supported* link speeds.  The Max Link Speed field in the
Link Capabilities Register indicates the *maximum* of those speeds.

pcie_get_supported_speeds() neglects to honor the Max Link Speed field and
will thus incorrectly deem higher speeds as supported.  Fix it.

One user-visible issue addressed here is an incorrect value in the sysfs
attribute "max_link_speed".

But the main motivation is a boot hang reported by Niklas:  Intel JHL7540
"Titan Ridge 2018" Thunderbolt controllers supports 2.5-8 GT/s speeds,
but indicate 2.5 GT/s as maximum.  Ilpo recalls seeing this on more
devices.  It can be explained by the controller's Downstream Ports
supporting 8 GT/s if an Endpoint is attached, but limiting to 2.5 GT/s
if the port interfaces to a PCIe Adapter, in accordance with USB4 v2
sec 11.2.1:

   "This section defines the functionality of an Internal PCIe Port that
    interfaces to a PCIe Adapter. [...]
    The Logical sub-block shall update the PCIe configuration registers
    with the following characteristics: [...]
    Max Link Speed field in the Link Capabilities Register set to 0001b
    (data rate of 2.5 GT/s only).
    Note: These settings do not represent actual throughput. Throughput
    is implementation specific and based on the USB4 Fabric performance."

The present commit is not sufficient on its own to fix Niklas' boot hang,
but it is a prerequisite:  A subsequent commit will fix the boot hang by
enabling bandwidth control only if more than one speed is supported.

The GENMASK() macro used herein specifies 0 as lowest bit, even though
the Supported Link Speeds Vector ends at bit 1.  This is done on purpose
to avoid a GENMASK(0, 1) macro if Max Link Speed is zero.  That macro
would be invalid as the lowest bit is greater than the highest bit.
Ilpo has witnessed a zero Max Link Speed on Root Complex Integrated
Endpoints in particular, so it does occur in practice.  (The Link
Capabilities Register is optional on RCiEPs per PCIe r6.2 sec 7.5.3.)

Fixes: d2bd39c045 ("PCI: Store all PCIe Supported Link Speeds")
Closes: https://lore.kernel.org/r/70829798889c6d779ca0f6cd3260a765780d1369.camel@kernel.org
Link: https://lore.kernel.org/r/fe03941e3e1cc42fb9bf4395e302bff53ee2198b.1734428762.git.lukas@wunner.de
Reported-by: Niklas Schnelle <niks@kernel.org>
Tested-by: Niklas Schnelle <niks@kernel.org>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2024-12-19 16:35:59 +00:00
Jens Axboe
c261e4f1dd io_uring/register: limit ring resizing to DEFER_TASKRUN
With DEFER_TASKRUN, we know the ring can't be both waited upon and
resized at the same time. This is important for CQ resizing. Allowing SQ
ring resizing is more trivial, but isn't the interesting use case. Hence
limit ring resizing in general to DEFER_TASKRUN only for now. This isn't
a huge problem as CQ ring resizing is generally the most useful on
networking type of workloads where it can be hard to size the ring
appropriately upfront, and those should be using DEFER_TASKRUN for
better performance.

Fixes: 79cfe9e59c ("io_uring/register: add IORING_REGISTER_RESIZE_RINGS")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-12-19 09:32:26 -07:00
Enzo Matsumiya
e9f2517a3e smb: client: fix TCP timers deadlock after rmmod
Commit ef7134c7fc ("smb: client: Fix use-after-free of network namespace.")
fixed a netns UAF by manually enabled socket refcounting
(sk->sk_net_refcnt=1 and sock_inuse_add(net, 1)).

The reason the patch worked for that bug was because we now hold
references to the netns (get_net_track() gets a ref internally)
and they're properly released (internally, on __sk_destruct()),
but only because sk->sk_net_refcnt was set.

Problem:
(this happens regardless of CONFIG_NET_NS_REFCNT_TRACKER and regardless
if init_net or other)

Setting sk->sk_net_refcnt=1 *manually* and *after* socket creation is not
only out of cifs scope, but also technically wrong -- it's set conditionally
based on user (=1) vs kernel (=0) sockets.  And net/ implementations
seem to base their user vs kernel space operations on it.

e.g. upon TCP socket close, the TCP timers are not cleared because
sk->sk_net_refcnt=1:
(cf. commit 151c9c724d ("tcp: properly terminate timers for kernel sockets"))

net/ipv4/tcp.c:
    void tcp_close(struct sock *sk, long timeout)
    {
    	lock_sock(sk);
    	__tcp_close(sk, timeout);
    	release_sock(sk);
    	if (!sk->sk_net_refcnt)
    		inet_csk_clear_xmit_timers_sync(sk);
    	sock_put(sk);
    }

Which will throw a lockdep warning and then, as expected, deadlock on
tcp_write_timer().

A way to reproduce this is by running the reproducer from ef7134c7fc
and then 'rmmod cifs'.  A few seconds later, the deadlock/lockdep
warning shows up.

Fix:
We shouldn't mess with socket internals ourselves, so do not set
sk_net_refcnt manually.

Also change __sock_create() to sock_create_kern() for explicitness.

As for non-init_net network namespaces, we deal with it the best way
we can -- hold an extra netns reference for server->ssocket and drop it
when it's released.  This ensures that the netns still exists whenever
we need to create/destroy server->ssocket, but is not directly tied to
it.

Fixes: ef7134c7fc ("smb: client: Fix use-after-free of network namespace.")
Cc: stable@vger.kernel.org
Signed-off-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-12-19 09:25:20 -06:00
Dragan Simic
ee1c8e6b29 smb: client: Deduplicate "select NETFS_SUPPORT" in Kconfig
Repeating automatically selected options in Kconfig files is redundant, so
let's delete repeated "select NETFS_SUPPORT" that was added accidentally.

Fixes: 69c3c023af ("cifs: Implement netfslib hooks")
Signed-off-by: Dragan Simic <dsimic@manjaro.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-12-19 09:24:35 -06:00
Bharath SM
a769bee5f9 smb: use macros instead of constants for leasekey size and default cifsattrs value
Replace default hardcoded value for cifsAttrs with ATTR_ARCHIVE macro
Use SMB2_LEASE_KEY_SIZE macro for leasekey size in smb2_lease_break

Signed-off-by: Bharath SM <bharathsm@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-12-19 09:24:32 -06:00
Bagas Sanjaya
1b684ca15f drm/sched: Fix drm_sched_fini() docu generation
Commit baf4afc583 ("drm/sched: Improve teardown documentation")
added a list of drm_sched_fini()'s problems. The list triggers htmldocs
warning (but renders correctly in htmldocs output):

Documentation/gpu/drm-mm:571: ./drivers/gpu/drm/scheduler/sched_main.c:1359: ERROR: Unexpected indentation.

Separate the list from the preceding paragraph by a blank line to fix
the warning. While at it, also end the aforementioned paragraph by a
colon.

Fixes: baf4afc583 ("drm/sched: Improve teardown documentation")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Closes: https://lore.kernel.org/r/20241108175655.6d3fcfb7@canb.auug.org.au/
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
[phasta: Adjust commit message]
Signed-off-by: Philipp Stanner <phasta@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241217034915.62594-1-bagasdotme@gmail.com
2024-12-19 16:03:56 +01:00
Jerome Marchand
716f2bca1c selftests/bpf: Fix compilation error in get_uprobe_offset()
In get_uprobe_offset(), the call to procmap_query() use the constant
PROCMAP_QUERY_VMA_EXECUTABLE, even if PROCMAP_QUERY is not defined.

Define PROCMAP_QUERY_VMA_EXECUTABLE when PROCMAP_QUERY isn't.

Fixes: 4e9e07603e ("selftests/bpf: make use of PROCMAP_QUERY ioctl if available")
Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/bpf/20241218175724.578884-1-jmarchan@redhat.com
2024-12-19 13:24:39 +01:00