Commit graph

158,356 commits

Author SHA1 Message Date
Tetsuo Handa
b88f55389a profiling: remove profile=sleep support
The kernel sleep profile is no longer working due to a recursive locking
bug introduced by commit 42a20f86dc ("sched: Add wrapper for get_wchan()
to keep task blocked")

Booting with the 'profile=sleep' kernel command line option added or
executing

  # echo -n sleep > /sys/kernel/profiling

after boot causes the system to lock up.

Lockdep reports

  kthreadd/3 is trying to acquire lock:
  ffff93ac82e08d58 (&p->pi_lock){....}-{2:2}, at: get_wchan+0x32/0x70

  but task is already holding lock:
  ffff93ac82e08d58 (&p->pi_lock){....}-{2:2}, at: try_to_wake_up+0x53/0x370

with the call trace being

   lock_acquire+0xc8/0x2f0
   get_wchan+0x32/0x70
   __update_stats_enqueue_sleeper+0x151/0x430
   enqueue_entity+0x4b0/0x520
   enqueue_task_fair+0x92/0x6b0
   ttwu_do_activate+0x73/0x140
   try_to_wake_up+0x213/0x370
   swake_up_locked+0x20/0x50
   complete+0x2f/0x40
   kthread+0xfb/0x180

However, since nobody noticed this regression for more than two years,
let's remove 'profile=sleep' support based on the assumption that nobody
needs this functionality.

Fixes: 42a20f86dc ("sched: Add wrapper for get_wchan() to keep task blocked")
Cc: stable@vger.kernel.org # v5.16+
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-08-04 13:36:28 -07:00
Linus Torvalds
defaf1a211 SCSI fixes on 20240803
One core change that reverts the double message print patch in sd.c
 (it was causing regressions on embedded systems).  The rest are driver
 fixes in ufs, mpt3sas and mpi3mr.
 
 Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
 -----BEGIN PGP SIGNATURE-----
 
 iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCZq6lOSYcamFtZXMuYm90
 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishbahAQCAOzIU
 tVtzYqnIaD3ACKJshPYHHUfq89W5tAlU/N3dVwEAp2h3iZV3BNHhTtzEsFwf8giX
 Q/srm1jHTyviB/rM1Yw=
 =qK7K
 -----END PGP SIGNATURE-----

Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "One core change that reverts the double message print patch in sd.c
  (it was causing regressions on embedded systems).

  The rest are driver fixes in ufs, mpt3sas and mpi3mr"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: ufs: exynos: Don't resume FMP when crypto support is disabled
  scsi: mpt3sas: Avoid IOMMU page faults on REPORT ZONES
  scsi: mpi3mr: Avoid IOMMU page faults on REPORT ZONES
  scsi: ufs: core: Do not set link to OFF state while waking up from hibernation
  scsi: Revert "scsi: sd: Do not repeat the starting disk message"
  scsi: ufs: core: Fix deadlock during RTC update
  scsi: ufs: core: Bypass quick recovery if force reset is needed
  scsi: ufs: core: Check LSDBS cap when !mcq
2024-08-03 15:12:56 -07:00
Linus Torvalds
b6547e5486 runtime constants: deal with old decrepit linkers
The runtime constants linker script depended on documented linker
behavior [1]:

 "If an output section’s name is the same as the input section’s name
  and is representable as a C identifier, then the linker will
  automatically PROVIDE two symbols: __start_SECNAME and __stop_SECNAME,
  where SECNAME is the name of the section. These indicate the start
  address and end address of the output section respectively"

to just automatically define the symbol names for the bounds of the
runtime constant arrays.

It turns out that this isn't actually something we can rely on, with old
linkers not generating these automatic symbols.  It looks to have been
introduced in binutils-2.29 back in 2017, and we still support building
with versions all the way back to binutils-2.25 (from 2015).

And yes, Oleg actually seems to be using such ancient versions of
binutils.

So instead of depending on the implicit symbols from "section names
match and are representable C identifiers", just do this all manually.
It's not like it causes us any extra pain, we already have to do that
for all the other sections that we use that often have special
characters in them.

Reported-and-tested-by: Oleg Nesterov <oleg@redhat.com>
Link: https://sourceware.org/binutils/docs/ld/Input-Section-Example.html [1]
Link: https://lore.kernel.org/all/20240802114518.GA20924@redhat.com/
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-08-03 08:38:45 -07:00
Linus Torvalds
725d410fac * fix latent bug in how usage of large pages is determined for
confidential VMs
 
 * fix "underline too short" in docs
 
 * eliminate log spam from limited APIC timer periods
 
 * disallow pre-faulting of memory before SEV-SNP VMs are initialized
 
 * delay clearing and encrypting private memory until it is added to
   guest page tables
 
 * this change also enables another small cleanup: the checks in
   SNP_LAUNCH_UPDATE that limit it to non-populated, private pages
   can now be moved in the common kvm_gmem_populate() function
 
 * fix compilation error that the RISC-V merge introduced in selftests
 -----BEGIN PGP SIGNATURE-----
 
 iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmatCoMUHHBib256aW5p
 QHJlZGhhdC5jb20ACgkQv/vSX3jHroMUmgf9FwuSypOyZeZM4DKpNoMdaDQGVBn2
 nTUYDJdiggmUNWA5MenqKtZ5N7G79iDO5HNDOUGBXn33f78EimDxsSC+Xfy54RNF
 SwEUZxQR/y81xOF2LIzfisWkNY+4Bf9fDALUbAlOj/O0E/YHDO9gk+ZNnvdHkWMe
 72euiii1xlIV/+Snq7QQZU2UiUNalIfN0wCtPRYG9RGbG+yF2ksm01QU3aE8Q2uu
 aSN3/DxfiFmKPEP5YQ1qXyntpQ8hA1WfONuUUhmgBgZlSdPS93nyL7y030QDzhgn
 /JayovN14I3S73rLcepmw3Jx4vTltX1QJA+JqBoKBv/gXJQ8ZCqyLzqrvQ==
 =ExK2
 -----END PGP SIGNATURE-----

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm updates from Paolo Bonzini:
 "The bulk of the changes here is a largish change to guest_memfd,
  delaying the clearing and encryption of guest-private pages until they
  are actually added to guest page tables. This started as "let's make
  it impossible to misuse the API" for SEV-SNP; but then it ballooned a
  bit.

  The new logic is generally simpler and more ready for hugepage support
  in guest_memfd.

  Summary:

   - fix latent bug in how usage of large pages is determined for
     confidential VMs

   - fix "underline too short" in docs

   - eliminate log spam from limited APIC timer periods

   - disallow pre-faulting of memory before SEV-SNP VMs are initialized

   - delay clearing and encrypting private memory until it is added to
     guest page tables

   - this change also enables another small cleanup: the checks in
     SNP_LAUNCH_UPDATE that limit it to non-populated, private pages can
     now be moved in the common kvm_gmem_populate() function

   - fix compilation error that the RISC-V merge introduced in selftests"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86/mmu: fix determination of max NPT mapping level for private pages
  KVM: riscv: selftests: Fix compile error
  KVM: guest_memfd: abstract how prepared folios are recorded
  KVM: guest_memfd: let kvm_gmem_populate() operate only on private gfns
  KVM: extend kvm_range_has_memory_attributes() to check subset of attributes
  KVM: cleanup and add shortcuts to kvm_range_has_memory_attributes()
  KVM: guest_memfd: move check for already-populated page to common code
  KVM: remove kvm_arch_gmem_prepare_needed()
  KVM: guest_memfd: make kvm_gmem_prepare_folio() operate on a single struct kvm
  KVM: guest_memfd: delay kvm_gmem_prepare_folio() until the memory is passed to the guest
  KVM: guest_memfd: return locked folio from __kvm_gmem_get_pfn
  KVM: rename CONFIG_HAVE_KVM_GMEM_* to CONFIG_HAVE_KVM_ARCH_GMEM_*
  KVM: guest_memfd: do not go through struct page
  KVM: guest_memfd: delay folio_mark_uptodate() until after successful preparation
  KVM: guest_memfd: return folio from __kvm_gmem_get_pfn()
  KVM: x86: disallow pre-fault for SNP VMs before initialization
  KVM: Documentation: Fix title underline too short warning
  KVM: x86: Eliminate log spam from limited APIC timer periods
2024-08-02 10:17:49 -07:00
Paolo Bonzini
1773014a97 * fix latent bug in how usage of large pages is determined for
confidential VMs
 
 * fix "underline too short" in docs
 
 * eliminate log spam from limited APIC timer periods
 
 * disallow pre-faulting of memory before SEV-SNP VMs are initialized
 
 * delay clearing and encrypting private memory until it is added to
   guest page tables
 
 * this change also enables another small cleanup: the checks in
   SNP_LAUNCH_UPDATE that limit it to non-populated, private pages
   can now be moved in the common kvm_gmem_populate() function
 -----BEGIN PGP SIGNATURE-----
 
 iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmar0uEUHHBib256aW5p
 QHJlZGhhdC5jb20ACgkQv/vSX3jHroMf9Af9EZ0k0HHltM+iUSqKW+hcfnyjRSlh
 MI2m8ZFF4Ra4a/H2CYWbUZSZd6U2TGQoy0cz8vN12uiaaRFSXHAzkoy1zhJGYujq
 ljCUx46Ovo6DDfA1ve9jPdHQNOKWy6Js8yheP+i58Pau1u9fWTewfvWnrwkMgnfD
 lkrSfnWhw7aBy7jTSd8KflRU/IugP2/ApsIhrjZZ9sFGncAwPBbb8NL/u5tI/l6f
 VDp1in5a5gk2PhVRVzvINUxNzhcyuQ0wC07N+B4H+3U0NLg4CwiTBJr/yz0OOWz6
 ThA20/fLTrs5jc2f5APk1EjGT8pqeMJYydI2FdqafSfY0PcTZJtXvzgdSw==
 =CwzF
 -----END PGP SIGNATURE-----

Merge branch 'kvm-fixes' into HEAD

* fix latent bug in how usage of large pages is determined for
  confidential VMs

* fix "underline too short" in docs

* eliminate log spam from limited APIC timer periods

* disallow pre-faulting of memory before SEV-SNP VMs are initialized

* delay clearing and encrypting private memory until it is added to
  guest page tables

* this change also enables another small cleanup: the checks in
  SNP_LAUNCH_UPDATE that limit it to non-populated, private pages
  can now be moved in the common kvm_gmem_populate() function
2024-08-02 12:33:43 -04:00
Linus Torvalds
948752d2e0 RISC-V Fixes for 6.11-rc2
* A fix to avoid dropping some of the internal pseudo-extensions, which
   breaks *envcfg dependency parsing.
 * The kernel entry address is now aligned in purgatory, which avoids a
   misaligned load that can lead to crash on systems that don't support
   misaligned accesses early in boot.
 * The FW_SFENCE_VMA_RECEIVED perf event was duplicated in a handful of
   perf JSON configurations, one of them been updated to
   FW_SFENCE_VMA_ASID_SENT.
 * The starfive cache driver is now restricted to 64-bit systems, as it
   isn't 32-bit clean.
 * A fix for to avoid aliasing legacy-mode perf counters with software
   perf counters.
 * VM_FAULT_SIGSEGV is now handled in the page fault code.
 * A fix for stalls during CPU hotplug due to IPIs being disabled.
 * A fix for memblock bounds checking.  This manifests as a crash on
   systems with discontinuous memory maps that have regions that don't
   fit in the linear map.
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCAAxFiEEKzw3R0RoQ7JKlDp6LhMZ81+7GIkFAmas/qwTHHBhbG1lckBk
 YWJiZWx0LmNvbQAKCRAuExnzX7sYiWp7EACDcorcihBG8uSsX//GKJPjkiGIbZkT
 MIMN3yqIzJuSftxpvgVxpyq2MFKYy7BK/75sK+4VoQpoCJEtdxbdh0JUqck/Nrgj
 Kn0hxWy7RO6Rp9ggf9dTdca64Tdxh32Eegpum3E46zuhYQBMcNze4z4NsOXs6ems
 254ww8+v7V5R7FGsxm1PG4Hs3soxZ9FPdWE69ndxmjr9N5FFkchk5YbV8AgKYtSJ
 sfu5Q+68zh58GVZhn0usug0fHNgVzdvwy3PIBDGD58hqIDAs9WlF80MiW3sESTIe
 PrJcAFBU4tHp+8h+OMaKw2xfybrZpNmqobx7dED34PJu0R4+Uvz7MUKMMPUJeB+q
 7UOZokjF2Hvd5VsAeTc1PisvzVsWkWpkzJqZmdaTr2m8J4m5z7/nby+ZcXmoOlVz
 JiMDgrkM4KIziq++9bYbBfcxsS9dMsvNtEQAHByL/zdVfAFTvWUMUmAgg27C3K9Z
 QbHfbpxqQ/pEu4CsRUIx4GnkEKnWPLuGovnYboGmC3BCDwQkkV8H0tcEhJtWMKte
 6h+vvKBX2POS4l8467ElmcTRv5Cfpi/dmhZrC9SHHQhNF5OiHHM2CmSEOKS1bUPj
 e4+k/QGmVQOAJGRRPkpD+DFMhHT/jhvbYV4kDXr/h9AKJQ2eWRGMSOMaPJ/X311N
 R5W1yiJilIhXuQ==
 =K52W
 -----END PGP SIGNATURE-----

Merge tag 'riscv-for-linus-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:

 - A fix to avoid dropping some of the internal pseudo-extensions, which
   breaks *envcfg dependency parsing

 - The kernel entry address is now aligned in purgatory, which avoids a
   misaligned load that can lead to crash on systems that don't support
   misaligned accesses early in boot

 - The FW_SFENCE_VMA_RECEIVED perf event was duplicated in a handful of
   perf JSON configurations, one of them been updated to
   FW_SFENCE_VMA_ASID_SENT

 - The starfive cache driver is now restricted to 64-bit systems, as it
   isn't 32-bit clean

 - A fix for to avoid aliasing legacy-mode perf counters with software
   perf counters

 - VM_FAULT_SIGSEGV is now handled in the page fault code

 - A fix for stalls during CPU hotplug due to IPIs being disabled

 - A fix for memblock bounds checking. This manifests as a crash on
   systems with discontinuous memory maps that have regions that don't
   fit in the linear map

* tag 'riscv-for-linus-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: Fix linear mapping checks for non-contiguous memory regions
  RISC-V: Enable the IPI before workqueue_online_cpu()
  riscv/mm: Add handling for VM_FAULT_SIGSEGV in mm_fault_error()
  perf: riscv: Fix selecting counters in legacy mode
  cache: StarFive: Require a 64-bit system
  perf arch events: Fix duplicate RISC-V SBI firmware event name
  riscv/purgatory: align riscv_kernel_entry
  riscv: cpufeature: Do not drop Linux-internal extensions
2024-08-02 09:33:35 -07:00
Linus Torvalds
29ccb40f2b asm-generic: fixes for 6.11
These are three important bug fixes for the cross-architecture tree,
 fixing a regression with the new syscall.tbl file, the inconsistent
 numbering for the new uretprobe syscall and a bug with iowrite64be
 on alpha.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEiK/NIGsWEZVxh/FrYKtH/8kJUicFAmas3bQACgkQYKtH/8kJ
 Uicf5xAAhNJuljx11D1WuMq5tT+tKHGTGzHZnQr1S2cNqo26Voeqm1ChaWT5U8Cg
 DBg+uSs5xj9aqdw7D/NVreCX/+JoxasJe6caqJhXqXOuMp8/GHIDaFAQV0SGw6Qy
 uwAzkRlz9RDZLFROZHoP+UsNr7X5Fv7C8i7Hpq2NusFnpHZTqDoUFas+g3LFy+Ex
 K/+y8nw1f6W5ZRl64LH1rBGFPWw2xSu/busghR9HjYXyc9sIQbMxq+14KbNuK8FK
 RTxzjUlmUDjX/Vcv7CW+C16mzQl04o4cFFK6xwGUxUaFYhWZHywkdfVvf35gYzCt
 Gv3LUn75pVjHOX7rQQcmBKSdHc6wGx1ZmV5vrAABO5c/docsMXdjUSWw2fOOmiB4
 JNNuGRK1CCfckpjMdJEXyUrchzI6W9mzqLZAShhNA0T9XnDhR7oekoFWwbDWiCyO
 oFPpjYZEtZdD0IdBC5bxhK2ES7HLuidiUL017+ZSSRIgAD9vQrXt2hTPYUmNJEC6
 YRsdOXm/tU3RrU/oKqzTnjW6fv7jZSAgND8TFEZFKGXrpjCipKqkrxyqNk3uiHMn
 YPEIXsBAeIPcTJGArkuyTRn2bGg2qW2NkmUze7cWkPfaj8P+Ljf9EQ54I533f94R
 Qm9G6d4c9ZmJg0h4YZ+WhPPXtTvf22Xdfp/56q8M52U/ThvTBuI=
 =0iyr
 -----END PGP SIGNATURE-----

Merge tag 'asm-generic-fixes-6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pull asm-generic fixes from Arnd Bergmann:
 "These are three important bug fixes for the cross-architecture tree,
  fixing a regression with the new syscall.tbl file, the inconsistent
  numbering for the new uretprobe syscall and a bug with iowrite64be on
  alpha"

* tag 'asm-generic-fixes-6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  syscalls: fix syscall macros for newfstat/newfstatat
  uretprobe: change syscall number, again
  alpha: fix ioread64be()/iowrite64be() helpers
2024-08-02 09:14:48 -07:00
Linus Torvalds
6b779f8a86 sound fixes for 6.11-rc2
A small collection of fixes:
 - Revert of FireWire changes that caused a long-time regression
 - Another long-time regression fix for AMD HDMI
 - MIDI2 UMP fixes
 - HD-audio Conexant codec fixes and a qurik
 -----BEGIN PGP SIGNATURE-----
 
 iQJCBAABCAAsFiEEIXTw5fNLNI7mMiVaLtJE4w1nLE8FAmaslGMOHHRpd2FpQHN1
 c2UuZGUACgkQLtJE4w1nLE8cXw/+MXYSGLdac8hALz3hxYBqVDo1Lr4NBJar6d8/
 1sngToZa3hb74uwvRctJ/+7bMV6/kIh76cwk+rM8PNSVtidivuTzlcASg8k1DMDq
 Zqxtba7UE8iC94BInu+GyVRlvYqQ41EwrFNu89oldlffYg+WInLVUe/genMf6NjT
 PycaFnxsmW1XTBXFqAEJqjNI9VkCyG3/6veOOtKJRPM+yTwjdH2tXGrgdXtVG47e
 lI10CxT6BFdBG7pmqVejOAMXVSJFKfGpLoyzlIiMr3NR4/qNhzMcQ092qX25CkHu
 37MzVXuxlHZFAlk9S28P+ReLRiTc2SdTGDA3zCnkex9kMOF9P8LbMN5gmY7m/6pa
 Wpq3U5sO/S9peaBtuR1ryGTqkt0jG9aXbRYVuaFMGQu8BVaERj6KEOoYcAeWGxiZ
 cZHhg4YDqgBExDhU2fPoLwTu1fRlm0RYwW+aiuaXIOXezPfph1M/pTnZR0FhDtd0
 BzCSLSaDPV/mWQM8ql8QzHjkHdb3SLhaGiBlQC0U9X5DA1J2KTtpXibG9+tzPQGx
 7naXLqswq33gLvWW1SpzhGPODBPRrddFsTRBrg2TlX6cywVmB/ylAl1f6EeZiKyA
 UWG5lMmXfB4jyDqUJC0mlVl/DQcsRsaChh+NdLeubfaGn8OBPEIDzzHM7GDjPHTQ
 CXTIxzI=
 =tMqd
 -----END PGP SIGNATURE-----

Merge tag 'sound-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A small collection of fixes:

   - Revert of FireWire changes that caused a long-time regression

   - Another long-time regression fix for AMD HDMI

   - MIDI2 UMP fixes

   - HD-audio Conexant codec fixes and a quirk"

* tag 'sound-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda: Conditionally use snooping for AMD HDMI
  ALSA: usb-audio: Correct surround channels in UAC1 channel map
  ALSA: seq: ump: Explicitly reset RPN with Null RPN
  ALSA: seq: ump: Transmit RPN/NRPN message at each MSB/LSB data reception
  ALSA: seq: ump: Use the common RPN/bank conversion context
  ALSA: ump: Explicitly reset RPN with Null RPN
  ALSA: ump: Transmit RPN/NRPN message at each MSB/LSB data reception
  Revert "ALSA: firewire-lib: operate for period elapse event in process context"
  Revert "ALSA: firewire-lib: obsolete workqueue for period update"
  ALSA: hda/realtek: Add quirk for Acer Aspire E5-574G
  ALSA: seq: ump: Optimize conversions from SysEx to UMP
  ALSA: hda/conexant: Mute speakers at suspend / shutdown
  ALSA: hda/generic: Add a helper to mute speakers at suspend/shutdown
  ALSA: hda: conexant: Fix headset auto detect fail in the polling mode
2024-08-02 09:04:57 -07:00
Arnd Bergmann
54233a4254 uretprobe: change syscall number, again
Despite multiple attempts to get the syscall number assignment right
for the newly added uretprobe syscall, we ended up with a bit of a mess:

 - The number is defined as 467 based on the assumption that the
   xattrat family of syscalls would use 463 through 466, but those
   did not make it into 6.11.

 - The include/uapi/asm-generic/unistd.h file still lists the number
   463, but the new scripts/syscall.tbl that was supposed to have the
   same data lists 467 instead as the number for arc, arm64, csky,
   hexagon, loongarch, nios2, openrisc and riscv. None of these
   architectures actually provide a uretprobe syscall.

 - All the other architectures (powerpc, arm, mips, ...) don't list
   this syscall at all.

There are two ways to make it consistent again: either list it with
the same syscall number on all architectures, or only list it on x86
but not in scripts/syscall.tbl and asm-generic/unistd.h.

Based on the most recent discussion, it seems like we won't need it
anywhere else, so just remove the inconsistent assignment and instead
move the x86 number to the next available one in the architecture
specific range, which is 335.

Fixes: 5c28424e9a ("syscalls: Fix to add sys_uretprobe to syscall.tbl")
Fixes: 190fec72df ("uprobe: Wire up uretprobe system call")
Fixes: 63ded11097 ("uprobe: Change uretprobe syscall scope and number")
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-08-02 15:18:49 +02:00
Linus Torvalds
183d46ff42 Including fixes from wireless, bleutooth, BPF and netfilter.
Current release - regressions:
 
  - core: drop bad gso csum_start and offset in virtio_net_hdr
 
  - wifi: mt76: fix null pointer access in mt792x_mac_link_bss_remove
 
  - eth: tun: add missing bpf_net_ctx_clear() in do_xdp_generic()
 
  - phy: aquantia: only poll GLOBAL_CFG regs on aqr113, aqr113c and aqr115c
 
 Current release - new code bugs:
 
  - smc: prevent UAF in inet_create()
 
  - bluetooth: btmtk: fix kernel crash when entering btmtk_usb_suspend
 
  - eth: bnxt: reject unsupported hash functions
 
 Previous releases - regressions:
 
  - sched: act_ct: take care of padding in struct zones_ht_key
 
  - netfilter: fix null-ptr-deref in iptable_nat_table_init().
 
  - tcp: adjust clamping window for applications specifying SO_RCVBUF
 
 Previous releases - always broken:
 
  - ethtool: rss: small fixes to spec and GET
 
  - mptcp:
    - fix signal endpoint re-add
    - pm: fix backup support in signal endpoints
 
  - wifi: ath12k: fix soft lockup on suspend
 
  - eth: bnxt_en: fix RSS logic in __bnxt_reserve_rings()
 
  - eth: ice: fix AF_XDP ZC timeout and concurrency issues
 
  - eth: mlx5:
    - fix missing lock on sync reset reload
    - fix error handling in irq_pool_request_irq
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 
 iQJGBAABCAAwFiEEg1AjqC77wbdLX2LbKSR5jcyPE6QFAmarelYSHHBhYmVuaUBy
 ZWRoYXQuY29tAAoJECkkeY3MjxOkdPwP/2lxh5Cc/SK/mJjBvyBdO2+cuNR0M4Kf
 UV2PA4oOLREYXEPgmOtJQ/VcsmOLa1pEPAdJarZwB5ztalgRKkIogHzzjfY43Fmx
 rAgZqGnIJrWRtepDM8jAaEJC0bEKywH5Wo6eh+oi0GCS07B48lpYATI/1gQdwBjV
 CgcZTQd/04PVx69Bi8LiQyfbwppAsIQQa9YaGmqGuQa74Hp9gz+4VyeRFg54h3CP
 6fWwRHNVO8GsGNA1UgWbeXXajhUU+AG/gDThqIcgxs3KmrREzU9EvcQ70XCzphOA
 JoUy9yykWRGen7aFGrggfY4NzjQmL6g+/rCvbIMfidRsJKBaQYBeMUkbQRnAh34V
 Pe3aSBEnv1aBKaQA7yntdqYGRJ2Sz56a1kjCvI86eDjExt4UshbZi+TfuQSj6zAY
 /ejOawhEYPFZw2FlvkBetyck7iroG1404DoBPghoRu9dG2e3p0eJOZfXiEzfS2qB
 PsJtMPiexSdEcY3sxVKOMh4hx0Zjkqest7laitb1Lrbg5pLhEiHvDkyhoUPGI2oa
 a3N4rsBc6sgSTQfJsx4nXFfKfNQsNu2Nr308BDk16XOHZ4J7Hgt6xR6STDo9ACz1
 Gy5munCN2AhGSdhR5niFI3ocNpDM5oWkztBfjz7YmIQv18NcU5nO8ByYytXMbglq
 sSsnR+VbYeCu
 =z53B
 -----END PGP SIGNATURE-----

Merge tag 'net-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from wireless, bleutooth, BPF and netfilter.

  Current release - regressions:

   - core: drop bad gso csum_start and offset in virtio_net_hdr

   - wifi: mt76: fix null pointer access in mt792x_mac_link_bss_remove

   - eth: tun: add missing bpf_net_ctx_clear() in do_xdp_generic()

   - phy: aquantia: only poll GLOBAL_CFG regs on aqr113, aqr113c and
     aqr115c

  Current release - new code bugs:

   - smc: prevent UAF in inet_create()

   - bluetooth: btmtk: fix kernel crash when entering btmtk_usb_suspend

   - eth: bnxt: reject unsupported hash functions

  Previous releases - regressions:

   - sched: act_ct: take care of padding in struct zones_ht_key

   - netfilter: fix null-ptr-deref in iptable_nat_table_init().

   - tcp: adjust clamping window for applications specifying SO_RCVBUF

  Previous releases - always broken:

   - ethtool: rss: small fixes to spec and GET

   - mptcp:
      - fix signal endpoint re-add
      - pm: fix backup support in signal endpoints

   - wifi: ath12k: fix soft lockup on suspend

   - eth: bnxt_en: fix RSS logic in __bnxt_reserve_rings()

   - eth: ice: fix AF_XDP ZC timeout and concurrency issues

   - eth: mlx5:
      - fix missing lock on sync reset reload
      - fix error handling in irq_pool_request_irq"

* tag 'net-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (76 commits)
  mptcp: fix duplicate data handling
  mptcp: fix bad RCVPRUNED mib accounting
  ipv6: fix ndisc_is_useropt() handling for PIO
  igc: Fix double reset adapter triggered from a single taprio cmd
  net: MAINTAINERS: Demote Qualcomm IPA to "maintained"
  net: wan: fsl_qmc_hdlc: Discard received CRC
  net: wan: fsl_qmc_hdlc: Convert carrier_lock spinlock to a mutex
  net/mlx5e: Add a check for the return value from mlx5_port_set_eth_ptys
  net/mlx5e: Fix CT entry update leaks of modify header context
  net/mlx5e: Require mlx5 tc classifier action support for IPsec prio capability
  net/mlx5: Fix missing lock on sync reset reload
  net/mlx5: Lag, don't use the hardcoded value of the first port
  net/mlx5: DR, Fix 'stack guard page was hit' error in dr_rule
  net/mlx5: Fix error handling in irq_pool_request_irq
  net/mlx5: Always drain health in shutdown callback
  net: Add skbuff.h to MAINTAINERS
  r8169: don't increment tx_dropped in case of NETDEV_TX_BUSY
  netfilter: iptables: Fix potential null-ptr-deref in ip6table_nat_table_init().
  netfilter: iptables: Fix null-ptr-deref in iptable_nat_table_init().
  net: drop bad gso csum_start and offset in virtio_net_hdr
  ...
2024-08-01 09:42:09 -07:00
Nick Hu
3908ba2e0b
RISC-V: Enable the IPI before workqueue_online_cpu()
Sometimes the hotplug cpu stalls at the arch_cpu_idle() for a while after
workqueue_online_cpu(). When cpu stalls at the idle loop, the reschedule
IPI is pending. However the enable bit is not enabled yet so the cpu stalls
at WFI until watchdog timeout. Therefore enable the IPI before the
workqueue_online_cpu() to fix the issue.

Fixes: 63c5484e74 ("workqueue: Add multiple affinity scopes and interface to select them")
Signed-off-by: Nick Hu <nick.hu@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20240717031714.1946036-1-nick.hu@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-08-01 07:15:43 -07:00
Linus Torvalds
21b136cc63 minmax: fix up min3() and max3() too
David Laight pointed out that we should deal with the min3() and max3()
mess too, which still does excessive expansion.

And our current macros are actually rather broken.

In particular, the macros did this:

  #define min3(x, y, z) min((typeof(x))min(x, y), z)
  #define max3(x, y, z) max((typeof(x))max(x, y), z)

and that not only is a nested expansion of possibly very complex
arguments with all that involves, the typing with that "typeof()" cast
is completely wrong.

For example, imagine what happens in max3() if 'x' happens to be a
'unsigned char', but 'y' and 'z' are 'unsigned long'.  The types are
compatible, and there's no warning - but the result is just random
garbage.

No, I don't think we've ever hit that issue in practice, but since we
now have sane infrastructure for doing this right, let's just use it.
It fixes any excessive expansion, and also avoids these kinds of broken
type issues.

Requested-by: David Laight <David.Laight@aculab.com>
Acked-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-07-31 09:57:18 -07:00
Takashi Iwai
e6ce8a28c7 ALSA: ump: Transmit RPN/NRPN message at each MSB/LSB data reception
The UMP 1.1 spec says that an RPN/NRPN should be sent when one of the
following occurs:
* a CC 38 is received
* a subsequent CC 6 is received
* a CC 98, 99, 100, and 101 is received, indicating the last RPN/NRPN
  message has ended and a new one has started

That said, we should send a partial data even if it's not fully
filled.  Let's change the UMP conversion helper code to follow that
rule.

Link: https://patch.msgid.link/20240731130528.12600-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-07-31 15:08:18 +02:00
Linus Torvalds
e4fc196f5b for-6.11-rc1-tag
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEE8rQSAMVO+zA4DBdWxWXV+ddtWDsFAmapmOQACgkQxWXV+ddt
 WDsXVhAAi4X+xt3o4jcN3IAu08JCQAAyXnFWC3lvn7sqYjSrcccI6ZT4/gAbHss+
 qrifakRGoYQ7fAjYBmhw48HqPmHtI2OQjIUDaIqHQOS68aXShBo9HiE460HRY4GT
 QV/KT0w37E2/R0EDR9gyjLq3ZA3/raxN1n+LNCFhRWmtsAEZrk4XzsADWb05YkIq
 1QBa92DzEhVpd04X8YHIYBgRidWbcYST6xhoWdyL9VZ1pzZsISq5LH67D4f/J1KU
 gXNf+ZnF9DXsQnptJrMsjhx61seJ2F0/vozFZ+l6SjRr0jeysmrJI0dxqQc/hUga
 gbLmdha6ztKdn03JOIL+lfdZYzICFl/2fekSWI2SNcag+TYszACjlFOyHusOgKsa
 3qQwzVB699FheWO5nrOOvOtgq0ZqGsrIvhIXLhA7/bVpNavPnUB7IQCcs8n89ImQ
 hUIebfX1FZnYXTrB6Hhm92LUb0lyLSlW1we3SSmaAMiy1TiXHG7hO2G/sIbOPAJC
 5VzdHf0DEjzEdjmTrGOV7JBfy5JmMK56oN8viZS95p70DYxNGvEOhLs/8n5twpri
 MWV8GElcOjjC+KnGnUH72spsnEKONpdzyccG9kiZEgkEi4csgHSxrkSmAehYD6i6
 MFYk+i7jvZ1VsbOulmdGOLbHS7whxi9pWb/CT3KKF1Ei5/v07bU=
 =JdOX
 -----END PGP SIGNATURE-----

Merge tag 'for-6.11-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:

 - fix regression in extent map rework when handling insertion of
   overlapping compressed extent

 - fix unexpected file length when appending to a file using direct io
   and buffer not faulted in

 - in zoned mode, fix accounting of unusable space when flipping
   read-only block group back to read-write

 - fix page locking when COWing an inline range, assertion failure found
   by syzbot

 - fix calculation of space info in debugging print

 - tree-checker, add validation of data reference item

 - fix a few -Wmaybe-uninitialized build warnings

* tag 'for-6.11-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: initialize location to fix -Wmaybe-uninitialized in btrfs_lookup_dentry()
  btrfs: fix corruption after buffer fault in during direct IO append write
  btrfs: zoned: fix zone_unusable accounting on making block group read-write again
  btrfs: do not subtract delalloc from avail bytes
  btrfs: make cow_file_range_inline() honor locked_page on error
  btrfs: fix corrupt read due to bad offset of a compressed extent map
  btrfs: tree-checker: validate dref root and objectid
2024-07-30 19:28:36 -07:00
Willem de Bruijn
89add40066 net: drop bad gso csum_start and offset in virtio_net_hdr
Tighten csum_start and csum_offset checks in virtio_net_hdr_to_skb
for GSO packets.

The function already checks that a checksum requested with
VIRTIO_NET_HDR_F_NEEDS_CSUM is in skb linear. But for GSO packets
this might not hold for segs after segmentation.

Syzkaller demonstrated to reach this warning in skb_checksum_help

	offset = skb_checksum_start_offset(skb);
	ret = -EINVAL;
	if (WARN_ON_ONCE(offset >= skb_headlen(skb)))

By injecting a TSO packet:

WARNING: CPU: 1 PID: 3539 at net/core/dev.c:3284 skb_checksum_help+0x3d0/0x5b0
 ip_do_fragment+0x209/0x1b20 net/ipv4/ip_output.c:774
 ip_finish_output_gso net/ipv4/ip_output.c:279 [inline]
 __ip_finish_output+0x2bd/0x4b0 net/ipv4/ip_output.c:301
 iptunnel_xmit+0x50c/0x930 net/ipv4/ip_tunnel_core.c:82
 ip_tunnel_xmit+0x2296/0x2c70 net/ipv4/ip_tunnel.c:813
 __gre_xmit net/ipv4/ip_gre.c:469 [inline]
 ipgre_xmit+0x759/0xa60 net/ipv4/ip_gre.c:661
 __netdev_start_xmit include/linux/netdevice.h:4850 [inline]
 netdev_start_xmit include/linux/netdevice.h:4864 [inline]
 xmit_one net/core/dev.c:3595 [inline]
 dev_hard_start_xmit+0x261/0x8c0 net/core/dev.c:3611
 __dev_queue_xmit+0x1b97/0x3c90 net/core/dev.c:4261
 packet_snd net/packet/af_packet.c:3073 [inline]

The geometry of the bad input packet at tcp_gso_segment:

[   52.003050][ T8403] skb len=12202 headroom=244 headlen=12093 tailroom=0
[   52.003050][ T8403] mac=(168,24) mac_len=24 net=(192,52) trans=244
[   52.003050][ T8403] shinfo(txflags=0 nr_frags=1 gso(size=1552 type=3 segs=0))
[   52.003050][ T8403] csum(0x60000c7 start=199 offset=1536
ip_summed=3 complete_sw=0 valid=0 level=0)

Mitigate with stricter input validation.

csum_offset: for GSO packets, deduce the correct value from gso_type.
This is already done for USO. Extend it to TSO. Let UFO be:
udp[46]_ufo_fragment ignores these fields and always computes the
checksum in software.

csum_start: finding the real offset requires parsing to the transport
header. Do not add a parser, use existing segmentation parsing. Thanks
to SKB_GSO_DODGY, that also catches bad packets that are hw offloaded.
Again test both TSO and USO. Do not test UFO for the above reason, and
do not test UDP tunnel offload.

GSO packet are almost always CHECKSUM_PARTIAL. USO packets may be
CHECKSUM_NONE since commit 10154dbded ("udp: Allow GSO transmit
from devices with no checksum offload"), but then still these fields
are initialized correctly in udp4_hwcsum/udp6_hwcsum_outgoing. So no
need to test for ip_summed == CHECKSUM_PARTIAL first.

This revises an existing fix mentioned in the Fixes tag, which broke
small packets with GSO offload, as detected by kselftests.

Link: https://syzkaller.appspot.com/bug?extid=e1db31216c789f552871
Link: https://lore.kernel.org/netdev/20240723223109.2196886-1-kuba@kernel.org
Fixes: e269d79c7d ("net: missing check virtio")
Cc: stable@vger.kernel.org
Signed-off-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20240729201108.1615114-1-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-30 18:34:13 -07:00
Linus Torvalds
22f5468731 minmax: improve macro expansion and type checking
This clarifies the rules for min()/max()/clamp() type checking and makes
them a much more efficient macro expansion.

In particular, we now look at the type and range of the inputs to see
whether they work together, generating a mask of acceptable comparisons,
and then just verifying that the inputs have a shared case:

 - an expression with a signed type can be used for
    (1) signed comparisons
    (2) unsigned comparisons if it is statically known to have a
        non-negative value

 - an expression with an unsigned type can be used for
    (3) unsigned comparison
    (4) signed comparisons if the type is smaller than 'int' and thus
        the C integer promotion rules will make it signed anyway

Here rule (1) and (3) are obvious, and rule (2) is important in order to
allow obvious trivial constants to be used together with unsigned
values.

Rule (4) is not necessarily a good idea, but matches what we used to do,
and we have extant cases of this situation in the kernel.  Notably with
bcachefs having an expression like

	min(bch2_bucket_sectors_dirty(a), ca->mi.bucket_size)

where bch2_bucket_sectors_dirty() returns an 's64', and
'ca->mi.bucket_size' is of type 'u16'.

Technically that bcachefs comparison is clearly sensible on a C type
level, because the 'u16' will go through the normal C integer promotion,
and become 'int', and then we're comparing two signed values and
everything looks sane.

However, it's not entirely clear that a 'min(s64,u16)' operation makes a
lot of conceptual sense, and it's possible that we will remove rule (4).
After all, the _reason_ we have these complicated type checks is exactly
that the C type promotion rules are not very intuitive.

But at least for now the rule is in place for backwards compatibility.

Also note that rule (2) existed before, but is hugely relaxed by this
commit.  It used to be true only for the simplest compile-time
non-negative integer constants.  The new macro model will allow cases
where the compiler can trivially see that an expression is non-negative
even if it isn't necessarily a constant.

For example, the amdgpu driver does

	min_t(size_t, sizeof(fru_info->serial), pia[addr] & 0x3F));

because our old 'min()' macro would see that 'pia[addr] & 0x3F' is of
type 'int' and clearly not a C constant expression, so doing a 'min()'
with a 'size_t' is a signedness violation.

Our new 'min()' macro still sees that 'pia[addr] & 0x3F' is of type
'int', but is smart enough to also see that it is clearly non-negative,
and thus would allow that case without any complaints.

Cc: Arnd Bergmann <arnd@kernel.org>
Cc: David Laight <David.Laight@aculab.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-07-30 10:36:47 -07:00
Matthieu Baerts (NGI0)
b6a66e521a mptcp: sched: check both directions for backup
The 'mptcp_subflow_context' structure has two items related to the
backup flags:

 - 'backup': the subflow has been marked as backup by the other peer

 - 'request_bkup': the backup flag has been set by the host

Before this patch, the scheduler was only looking at the 'backup' flag.
That can make sense in some cases, but it looks like that's not what we
wanted for the general use, because either the path-manager was setting
both of them when sending an MP_PRIO, or the receiver was duplicating
the 'backup' flag in the subflow request.

Note that the use of these two flags in the path-manager are going to be
fixed in the next commits, but this change here is needed not to modify
the behaviour.

Fixes: f296234c98 ("mptcp: Add handling of incoming MP_JOIN requests")
Cc: stable@vger.kernel.org
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-07-30 10:27:29 +02:00
Martin K. Petersen
7c632fc3ce Merge branch '6.11/scsi-queue' into 6.11/scsi-fixes
Pull outstanding commits from 6.11 queue into fixes.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-07-29 21:46:16 -04:00
Linus Torvalds
10826505f5 virtio: fixes
This fixes 3 issues:
 - prevent admin commands on one VF blocking another:
   prevents a bad VF from blocking a good one, as well
   as fixing a scalability issue with large # of VFs
 - correctly return error on command failure on octeon:
   currently if any commands fail we treat it as success
 - fix modpost warning when building virtio_dma_buf:
   harmless, but the fix is trivial
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 
 iQFCBAABCAAtFiEEXQn9CHHI+FuUyooNKB8NuNKNVGkFAmajTPEPHG1zdEByZWRo
 YXQuY29tAAoJECgfDbjSjVRposcH90Gjchks1cqznVEGiH/FRzclYeK2VZKZDR/A
 EVfoe+vnSgCO1vAx0fla6Db2IR/FM81jBFolfwpCKhA4W/vbczeUTop2/kAM+JQD
 uP+yjQ0xpEIqVBp+tpUVuekiGGxfJd1Ky3jCp6kYf7TPbQ50+BczCUd3YBnZ7YtY
 WHNod1wpxTDj66bvHPBxb3dnAcHsVUHWmB8kpgFQMsd6CNVk9mvA9WIj9UgIfbj1
 /PNyETZRyqEjwl8/A11LdTqcUeZKm5PJjB7FfWc/ZfJOqtRpP/9848ESVvlgPjMd
 I4YSN5E5rLjv1R1ErTKfgiq5R82JJv6WhzqxdbhhlKb+TJaTDQ==
 =wH2A
 -----END PGP SIGNATURE-----

Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio fixes from Michael Tsirkin:
 "The biggest thing here is the adminq change - but it looks like the
  only way to avoid headq blocking causing indefinite stalls.

  This fixes three issues:

   - Prevent admin commands on one VF blocking another.

     This prevents a bad VF from blocking a good one, as well as fixing
     a scalability issue with large # of VFs

   - Correctly return error on command failure on octeon. We used to
     treat failed commands as a success.

   - Fix modpost warning when building virtio_dma_buf. Harmless, but the
     fix is trivial"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  virtio_pci_modern: remove admin queue serialization lock
  virtio_pci_modern: use completion instead of busy loop to wait on admin cmd result
  virtio_pci_modern: pass cmd as an identification token
  virtio_pci_modern: create admin queue of queried size
  virtio: create admin queues alongside other virtqueues
  virtio_pci: pass vq info as an argument to vp_setup_vq()
  virtio: push out code to vp_avq_index()
  virtio_pci_modern: treat vp_dev->admin_vq.info.vq pointer as static
  virtio_pci: introduce vector allocation fallback for slow path virtqueues
  virtio_pci: pass vector policy enum to vp_find_one_vq_msix()
  virtio_pci: pass vector policy enum to vp_find_vqs_msix()
  virtio_pci: simplify vp_request_msix_vectors() call a bit
  virtio_pci: push out single vq find code to vp_find_one_vq_msix()
  vdpa/octeon_ep: Fix error code in octep_process_mbox()
  virtio: add missing MODULE_DESCRIPTION() macro
2024-07-29 12:53:37 -07:00
Linus Torvalds
2accfdb7ef profiling: attempt to remove per-cpu profile flip buffer
This is the really old legacy kernel profiling code, which has long
since been obviated by "real profiling" (ie 'prof' and company), and
mainly remains as a source of syzbot reports.

There are anecdotal reports that people still use it for boot-time
profiling, but it's unlikely that such use would care about the old NUMA
optimizations in this code from 2004 (commit ad02973d42: "profile: 512x
Altix timer interrupt livelock fix" in the BK import archive at [1])

So in order to head off future syzbot reports, let's try to simplify
this code and get rid of the per-cpu profile buffers that are quite a
large portion of the complexity footprint of this thing (including CPU
hotplug callbacks etc).

It's unlikely anybody will actually notice, or possibly, as Thomas put
it: "Only people who indulge in nostalgia will notice :)".

That said, if it turns out that this code is actually actively used by
somebody, we can always revert this removal.  Thus the "attempt" in the
summary line.

[ Note: in a small nod to "the profiling code can cause NUMA problems",
  this also removes the "increment the last entry in the profiling array
  on any unknown hits" logic. That would account any program counter in
  a module to that single counter location, and might exacerbate any
  NUMA cacheline bouncing issues ]

Link: https://lore.kernel.org/all/CAHk-=wgs52BxT4Zjmjz8aNvHWKxf5_ThBY4bYL1Y6CTaNL2dTw@mail.gmail.com/
Link:  https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git [1]
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-07-29 10:58:28 -07:00
Naohiro Aota
8cd44dd1d1 btrfs: zoned: fix zone_unusable accounting on making block group read-write again
When btrfs makes a block group read-only, it adds all free regions in the
block group to space_info->bytes_readonly. That free space excludes
reserved and pinned regions. OTOH, when btrfs makes the block group
read-write again, it moves all the unused regions into the block group's
zone_unusable. That unused region includes reserved and pinned regions.
As a result, it counts too much zone_unusable bytes.

Fortunately (or unfortunately), having erroneous zone_unusable does not
affect the calculation of space_info->bytes_readonly, because free
space (num_bytes in btrfs_dec_block_group_ro) calculation is done based on
the erroneous zone_unusable and it reduces the num_bytes just to cancel the
error.

This behavior can be easily discovered by adding a WARN_ON to check e.g,
"bg->pinned > 0" in btrfs_dec_block_group_ro(), and running fstests test
case like btrfs/282.

Fix it by properly considering pinned and reserved in
btrfs_dec_block_group_ro(). Also, add a WARN_ON and introduce
btrfs_space_info_update_bytes_zone_unusable() to catch a similar mistake.

Fixes: 169e0da91a ("btrfs: zoned: track unusable bytes for zones")
CC: stable@vger.kernel.org # 5.15+
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2024-07-29 19:21:19 +02:00
Linus Torvalds
dc1c8034e3 minmax: simplify min()/max()/clamp() implementation
Now that we no longer have any C constant expression contexts (ie array
size declarations or static initializers) that use min() or max(), we
can simpify the implementation by not having to worry about the result
staying as a C constant expression.

So now we can unconditionally just use temporary variables of the right
type, and get rid of the excessive expansion that used to come from the
use of

   __builtin_choose_expr(__is_constexpr(...), ..

to pick the specialized code for constant expressions.

Another expansion simplification is to pass the temporary variables (in
addition to the original expression) to our __types_ok() macro.  That
may superficially look like it complicates the macro, but when we only
want the type of the expression, expanding the temporary variable names
is much simpler and smaller than expanding the potentially complicated
original expression.

As a result, on my machine, doing a

  $ time make drivers/staging/media/atomisp/pci/isp/kernels/ynr/ynr_1.0/ia_css_ynr.host.i

goes from

	real	0m16.621s
	user	0m15.360s
	sys	0m1.221s

to

	real	0m2.532s
	user	0m2.091s
	sys	0m0.452s

because the token expansion goes down dramatically.

In particular, the longest line expansion (which was line 71 of that
'ia_css_ynr.host.c' file) shrinks from 23,338kB (yes, 23MB for one
single line) to "just" 1,444kB (now "only" 1.4MB).

And yes, that line is still the line from hell, because it's doing
multiple levels of "min()/max()" expansion thanks to some of them being
hidden inside the uDIGIT_FITTING() macro.

Lorenzo has a nice cleanup patch that makes that driver use inline
functions instead of macros for sDIGIT_FITTING() and uDIGIT_FITTING(),
which will fix that line once and for all, but the 16-fold reduction in
this case does show why we need to simplify these helpers.

Cc: David Laight <David.Laight@aculab.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-07-28 20:24:12 -07:00
Linus Torvalds
1a251f52cf minmax: make generic MIN() and MAX() macros available everywhere
This just standardizes the use of MIN() and MAX() macros, with the very
traditional semantics.  The goal is to use these for C constant
expressions and for top-level / static initializers, and so be able to
simplify the min()/max() macros.

These macro names were used by various kernel code - they are very
traditional, after all - and all such users have been fixed up, with a
few different approaches:

 - trivial duplicated macro definitions have been removed

   Note that 'trivial' here means that it's obviously kernel code that
   already included all the major kernel headers, and thus gets the new
   generic MIN/MAX macros automatically.

 - non-trivial duplicated macro definitions are guarded with #ifndef

   This is the "yes, they define their own versions, but no, the include
   situation is not entirely obvious, and maybe they don't get the
   generic version automatically" case.

 - strange use case #1

   A couple of drivers decided that the way they want to describe their
   versioning is with

	#define MAJ 1
	#define MIN 2
	#define DRV_VERSION __stringify(MAJ) "." __stringify(MIN)

   which adds zero value and I just did my Alexander the Great
   impersonation, and rewrote that pointless Gordian knot as

	#define DRV_VERSION "1.2"

   instead.

 - strange use case #2

   A couple of drivers thought that it's a good idea to have a random
   'MIN' or 'MAX' define for a value or index into a table, rather than
   the traditional macro that takes arguments.

   These values were re-written as C enum's instead. The new
   function-line macros only expand when followed by an open
   parenthesis, and thus don't clash with enum use.

Happily, there weren't really all that many of these cases, and a lot of
users already had the pattern of using '#ifndef' guarding (or in one
case just using '#undef MIN') before defining their own private version
that does the same thing. I left such cases alone.

Cc: David Laight <David.Laight@aculab.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-07-28 15:49:18 -07:00
Linus Torvalds
017fa3e891 minmax: simplify and clarify min_t()/max_t() implementation
This simplifies the min_t() and max_t() macros by no longer making them
work in the context of a C constant expression.

That means that you can no longer use them for static initializers or
for array sizes in type definitions, but there were only a couple of
such uses, and all of them were converted (famous last words) to use
MIN_T/MAX_T instead.

Cc: David Laight <David.Laight@aculab.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-07-28 13:50:01 -07:00
Linus Torvalds
e62f81bbd2 CXL for v6.11 merge window
New Changes:
 - Refactor to a common struct for DRAM and general media CXL events
 - Add abstract distance calculation support for CXL
 - Add CXL maturity map documentation to detail current state of CXL enabling
 - Add warning on mixed CXL VH and RCH/RCD hierachy to inform unsupported config
 - Replace ENXIO with EBUSY for inject poison limit reached via debugfs
 - Replace ENXIO with EBUSY for inject poison cxl-test support
 - XOR math fixup for DPA to SPA translation. Current math works for MODULO arithmetic
   where HPA==SPA, however not for XOR decode.
 - Move pci config read in cxl_dvsec_rr_decode() to avoid unnecessary acess
 
 Fixes:
 - Add a fix to address race condition in CXL memory hotplug notifier
 - Add missing MODULE_DESCRIPTION() for CXL modules
 - Fix incorrect vendor debug UUID define
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE5DAy15EJMCV1R6v9YGjFFmlTOEoFAmahJiMACgkQYGjFFmlT
 OEq8URAArcnzmH9yLvgE2pFOtaKg34vIGDWZGC4R1LpTnFEea04FuJslmxEKNgWo
 DJgPt9VZ66ump/oIvzcbvgLl/yMCTbnSxt5U6J8G5EmpO50PvxOTeWnEgAYVa0NH
 Diuzk/aF4GA94T3w+iAOzYx2N36kF+ezsY3/kqSORT7MC+DipSSUaPUiJcjr6FC6
 /ZIwkhhRi51ONJ8IgaXD+oEU9kxx7WUEyZoQZrJ9bv8/fGbeEfqy04pz2xDKHmLD
 rlQjm3l9um67VMsCvZ62Ce14HXqM213jZ3l0FmYjO4GbdXd2+0ZmIRNAb5vvTG9n
 5cY8vNsL6fND9FKkxlcRSdzI/O/vV+gcU+jzJxiul0p5fWHh/gaYjVH7fFq3dYc+
 vYE5lr97BfyA61bdmylIc2xwDH4yNKVQLZZPVTz5XTxfzBjYCjLPb5vGQKfg/nrB
 N66wjCIWLfCH6DqusUXem1c6BSrrjob8MwXpg00eBE0AA4ihieiy5fxuApnv9mI2
 f809AXRV1k24s5upStZ9iGZSEILBBqiw/KwDyWfRvxjNz36Z1Q2eiXBwbHrVQHBa
 PFtRPPFsZ9+ouIG/8otFaLwDQdITRdA0+drG8lmJ+gs8239Z3eIMMS0+CYdLDbva
 S8vo4POOQSS+cVUjLkC9zIxwPaXq96TLIkCtiLI9xUx5eIzv4K0=
 =HaEG
 -----END PGP SIGNATURE-----

Merge tag 'cxl-for-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

Pull CXL updates from Dave Jiang:
 "Core:

   - A CXL maturity map has been added to the documentation to detail
     the current state of CXL enabling.

     It provides the status of the current state of various CXL features
     to inform current and future contributors of where things are and
     which areas need contribution.

   - A notifier handler has been added in order for a newly created CXL
     memory region to trigger the abstract distance metrics calculation.

     This should bring parity for CXL memory to the same level vs
     hotplugged DRAM for NUMA abstract distance calculation. The
     abstract distance reflects relative performance used for memory
     tiering handling.

   - An addition for XOR math has been added to address the CXL DPA to
     SPA translation.

     CXL address translation did not support address interleave math
     with XOR prior to this change.

  Fixes:

   - Fix to address race condition in the CXL memory hotplug notifier

   - Add missing MODULE_DESCRIPTION() for CXL modules

   - Fix incorrect vendor debug UUID define

  Misc:

   - A warning has been added to inform users of an unsupported
     configuration when mixing CXL VH and RCH/RCD hierarchies

   - The ENXIO error code has been replaced with EBUSY for inject poison
     limit reached via debugfs and cxl-test support

   - Moving the PCI config read in cxl_dvsec_rr_decode() to avoid
     unnecessary PCI config reads

   - A refactor to a common struct for DRAM and general media CXL
     events"

* tag 'cxl-for-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
  cxl/core/pci: Move reading of control register to immediately before usage
  cxl: Remove defunct code calculating host bridge target positions
  cxl/region: Verify target positions using the ordered target list
  cxl: Restore XOR'd position bits during address translation
  cxl/core: Fold cxl_trace_hpa() into cxl_dpa_to_hpa()
  cxl/test: Replace ENXIO with EBUSY for inject poison limit reached
  cxl/memdev: Replace ENXIO with EBUSY for inject poison limit reached
  cxl/acpi: Warn on mixed CXL VH and RCH/RCD Hierarchy
  cxl/core: Fix incorrect vendor debug UUID define
  Documentation: CXL Maturity Map
  cxl/region: Simplify cxl_region_nid()
  cxl/region: Support to calculate memory tier abstract distance
  cxl/region: Fix a race condition in memory hotplug notifier
  cxl: add missing MODULE_DESCRIPTION() macros
  cxl/events: Use a common struct for DRAM and General Media events
2024-07-28 09:33:28 -07:00
Linus Torvalds
6342649c33 block-6.11-20240726
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAmajsToQHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgptHKD/sHZcgf+bt/AOC1XebvCyIYYwWvNaMK2kQG
 7Z3kUknbuyML6QcAWSAhG5Z+6qGoIZPFXy1c7EUjs2LLM0KC13zw2D23ipTYXjyQ
 6cJPtgTY6Z4WrWyI7QVRG/cByYiUUNv20Cantexzv0H28/S1a5ne9ajwzkuJ5ZaM
 9EBIpbb9OtR+HKwzaw8oMng5XwXvxuo+DCX/MnJEHWnVYpRyQbQO7yCWb74zYKs0
 cwQp2FyACbGQ6AAt8c8loXYSObhGh6ofdAJoGwC1REZhgS1bxMHFgtnn5Gfq7EyJ
 MfPLFevZ99pxHgUkd9WR2DObOVAhY6kTOfuT2d26W50WP4PH40iAp5vapbEs1VDi
 /Rjr43PgVlzdGc4+u4O5B+E16mAIOmApBP6p6tgbypGU3+AFLhgKEdX3Tc3GgUqC
 zazucEO96ZCMVEjPhSrLLcWwBjlrHwINIgqAVq878D7b+3Qs7RSF6VLr6HP5y2nL
 B0CeSz9PY2xOjRgVqPrFeQLuYk9fRo6zAM2Ewd0TOgSg17z8XXznk0E2ME1ULvZW
 6Cuz5Pi59l2aqrIhm9gvVmMr+KEAu4YCiYOWI5yhNcz7EalY9SmNTovbBdnpaOTa
 74BrL+6lCviLsP4B29iNsqNai5GhAHYS/obJUITuaTAoZpvn9JjWlVBadZd7unbo
 Wn+53IKuaA==
 =Ci8Z
 -----END PGP SIGNATURE-----

Merge tag 'block-6.11-20240726' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:

 - NVMe pull request via Keith:
     - Fix request without payloads cleanup  (Leon)
     - Use new protection information format (Francis)
     - Improved debug message for lost pci link (Bart)
     - Another apst quirk (Wang)
     - Use appropriate sysfs api for printing chars (Markus)

 - ublk async device deletion fix (Ming)

 - drbd kerneldoc fixups (Simon)

 - Fix deadlock between sd removal and release (Yang)

* tag 'block-6.11-20240726' of git://git.kernel.dk/linux:
  nvme-pci: add missing condition check for existence of mapped data
  ublk: fix UBLK_CMD_DEL_DEV_ASYNC handling
  block: fix deadlock between sd_remove & sd_release
  drbd: Add peer_device to Kernel doc
  nvme-core: choose PIF from QPIF if QPIFS supports and PIF is QTYPE
  nvme-pci: Fix the instructions for disabling power management
  nvme: remove redundant bdev local variable
  nvme-fabrics: Use seq_putc() in __nvmf_concat_opt_tokens()
  nvme/pci: Add APST quirk for Lenovo N60z laptop
2024-07-27 15:28:53 -07:00
Linus Torvalds
8c93074743 io_uring-6.11-20240726
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAmajvJcQHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgpge7D/42t/Rx6pSLPJXtYcChVQNrctaXyqv4bbnB
 QuIhAsVjaR76Z8A9dkL+9AkIrScfODv1U42PFWAxDoe51XG25U519tlzrzf1Phwd
 NryBd28svgiuutfMi5UGTH2UCuXxS9RzEJDp76BhfZFavVd+ggPSQeZQ8Sy5pA2Z
 0lzF6rI9lXkt1yiZyjaisPR6J0UhSM8OU/PFjI7B1cMFBzDSKK6B74zdEDcCKqi0
 CdkkxdmHTn2fTR9FN4VhIRryS/2obzDTBd9Jg2DfZf/umQgDQ6A0ihcIq2vehTW3
 AfLxftnyBeKrzpWqcgC8QhQHeXV91WtPItq21Dd70YSRttHJ+lecPYM24ZVQQLA5
 Hqea0b6PSHxZXdNSRZaY9gjdcHVGdT8kykcNfD8PhOrhYEExAeKe7q/olIKsNANo
 pfxf1hs6cUY64zRCVMnaTKk/UZXWo73h7yVIAEgPmoo6ajAlrfUUn6FO8IV3jXgb
 oa5MNbcAboyfZT0Y0OlBvU1/tWupLknO2UG8lGUoKIGVH8FGEL/sAOJF1ICi3+cI
 0O0MJfUu0bky8N2G/3/U7cgEEE836hac0IRAntv3vh1W1Fy5DnYSPUvj2FjPKVou
 Ct4XY8EPXFEwXT9Zj5lxHMIAvNw1RhakVoTv4wtz5RE+EL5XvQIRHMzxtsi0sc3X
 NRrUmPRo9g==
 =lUXx
 -----END PGP SIGNATURE-----

Merge tag 'io_uring-6.11-20240726' of git://git.kernel.dk/linux

Pull io_uring fixes from Jens Axboe:

 - Fix a syzbot issue for the msg ring cache added in this release. No
   ill effects from this one, but it did make KMSAN unhappy (me)

 - Sanitize the NAPI timeout handling, by unifying the value handling
   into all ktime_t rather than converting back and forth (Pavel)

 - Fail NAPI registration for IOPOLL rings, it's not supported (Pavel)

 - Fix a theoretical issue with ring polling and cancelations (Pavel)

 - Various little cleanups and fixes (Pavel)

* tag 'io_uring-6.11-20240726' of git://git.kernel.dk/linux:
  io_uring/napi: pass ktime to io_napi_adjust_timeout
  io_uring/napi: use ktime in busy polling
  io_uring/msg_ring: fix uninitialized use of target_req->flags
  io_uring: align iowq and task request error handling
  io_uring: kill REQ_F_CANCEL_SEQ
  io_uring: simplify io_uring_cmd return
  io_uring: fix io_match_task must_hold
  io_uring: don't allow netpolling with SETUP_IOPOLL
  io_uring: tighten task exit cancellations
2024-07-27 15:22:33 -07:00
Linus Torvalds
910bfc26d1 Rust changes for v6.11
The highlight is the establishment of a minimum version for the Rust
 toolchain, including 'rustc' (and bundled tools) and 'bindgen'.
 
 The initial minimum will be the pinned version we currently have, i.e.
 we are just widening the allowed versions. That covers 3 stable Rust
 releases: 1.78.0, 1.79.0, 1.80.0 (getting released tomorrow), plus beta,
 plus nightly.
 
 This should already be enough for kernel developers in distributions
 that provide recent Rust compiler versions routinely, such as Arch
 Linux, Debian Unstable (outside the freeze period), Fedora Linux,
 Gentoo Linux (especially the testing channel), Nix (unstable) and
 openSUSE Slowroll and Tumbleweed.
 
 In addition, the kernel is now being built-tested by Rust's pre-merge
 CI. That is, every change that is attempting to land into the Rust
 compiler is tested against the kernel, and it is merged only if it
 passes. Similarly, the bindgen tool has agreed to build the kernel in
 their CI too.
 
 Thus, with the pre-merge CI in place, both projects hope to avoid
 unintentional changes to Rust that break the kernel. This means that,
 in general, apart from intentional changes on their side (that we
 will need to workaround conditionally on our side), the upcoming Rust
 compiler versions should generally work.
 
 In addition, the Rust project has proposed getting the kernel into
 stable Rust (at least solving the main blockers) as one of its three
 flagship goals for 2024H2 [1].
 
 I would like to thank Niko, Sid, Emilio et al. for their help promoting
 the collaboration between Rust and the kernel.
 
 [1] https://rust-lang.github.io/rust-project-goals/2024h2/index.html#flagship-goals
 
 Toolchain and infrastructure:
 
  - Support several Rust toolchain versions.
 
  - Support several bindgen versions.
 
  - Remove 'cargo' requirement and simplify 'rusttest', thanks to 'alloc'
    having been dropped last cycle.
 
  - Provide proper error reporting for the 'rust-analyzer' target.
 
 'kernel' crate:
 
  - Add 'uaccess' module with a safe userspace pointers abstraction.
 
  - Add 'page' module with a 'struct page' abstraction.
 
  - Support more complex generics in workqueue's 'impl_has_work!' macro.
 
 'macros' crate:
 
  - Add 'firmware' field support to the 'module!' macro.
 
  - Improve 'module!' macro documentation.
 
 Documentation:
 
  - Provide instructions on what packages should be installed to build
    the kernel in some popular Linux distributions.
 
  - Introduce the new kernel.org LLVM+Rust toolchains.
 
  - Explain '#[no_std]'.
 
 And a few other small bits.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEPjU5OPd5QIZ9jqqOGXyLc2htIW0FAmahqRUACgkQGXyLc2ht
 IW0xbA/6A26b14LjvmFBJU6LZb0ey1BCbK9cOWtd6K6f/uWp108WAIdA/+gHgOGU
 I6rW8nXk3af078lHRqv0ihMDUks/1mz5wyxEXoZ/mVvRJbzH9TsHN7cSP2fr4H14
 8rES4esr2XBlu9OdgDFb/o7jequ7PE0+WQDapV6eAhWQlBC6AI+ShyX26pWcB5gv
 8O4mE59Up51d21L8apVh+pnEgBsCsu7c68pUMbrk2k4sHVvnRti4iLoVlemf4X80
 Di9hyi8iN/MvWMdfq+hCIufUIbcWde07HcCbLjQlkJv0sc20V+UIGUx4EOUasOTY
 ugUyzhlFNGPxJYayAZAb8KJtQZhSbGZ+R244Z/CoV2RMlEw9LxSCpyzHr1nalOLT
 01gqZh6+gIFyPm6F0ORsetcV6yzdvUcGTjx1vuEJ9qqeKG/gc/VqFOcmCPaT7y8K
 nTOMg6zY3mzaqTn1iBebid7INzXJN7ha9dk1TkDv47BNZAic51d3L0hQFXuDrEuu
 MxVIPTAPKJSaQTCh0jrLxLJ649v/98OP0urYqlVeKuTeovupETxCsBTVtjjjsv+w
 ZomqEO+JWuf7hjG0RLuCwi/IvWpUFpEdOal4qfHbKLOAOn7zxV/WrG675HcRKbw5
 Zkr/0Q44fwbZWd2b/svTO1qOKaYV7oL0utVOdUb2KX05K71NNVo=
 =8PYF
 -----END PGP SIGNATURE-----

Merge tag 'rust-6.11' of https://github.com/Rust-for-Linux/linux

Pull Rust updates from Miguel Ojeda:
 "The highlight is the establishment of a minimum version for the Rust
  toolchain, including 'rustc' (and bundled tools) and 'bindgen'.

  The initial minimum will be the pinned version we currently have, i.e.
  we are just widening the allowed versions. That covers three stable
  Rust releases: 1.78.0, 1.79.0, 1.80.0 (getting released tomorrow),
  plus beta, plus nightly.

  This should already be enough for kernel developers in distributions
  that provide recent Rust compiler versions routinely, such as Arch
  Linux, Debian Unstable (outside the freeze period), Fedora Linux,
  Gentoo Linux (especially the testing channel), Nix (unstable) and
  openSUSE Slowroll and Tumbleweed.

  In addition, the kernel is now being built-tested by Rust's pre-merge
  CI. That is, every change that is attempting to land into the Rust
  compiler is tested against the kernel, and it is merged only if it
  passes. Similarly, the bindgen tool has agreed to build the kernel in
  their CI too.

  Thus, with the pre-merge CI in place, both projects hope to avoid
  unintentional changes to Rust that break the kernel. This means that,
  in general, apart from intentional changes on their side (that we will
  need to workaround conditionally on our side), the upcoming Rust
  compiler versions should generally work.

  In addition, the Rust project has proposed getting the kernel into
  stable Rust (at least solving the main blockers) as one of its three
  flagship goals for 2024H2 [1].

  I would like to thank Niko, Sid, Emilio et al. for their help
  promoting the collaboration between Rust and the kernel.

  Toolchain and infrastructure:

   - Support several Rust toolchain versions.

   - Support several bindgen versions.

   - Remove 'cargo' requirement and simplify 'rusttest', thanks to
     'alloc' having been dropped last cycle.

   - Provide proper error reporting for the 'rust-analyzer' target.

  'kernel' crate:

   - Add 'uaccess' module with a safe userspace pointers abstraction.

   - Add 'page' module with a 'struct page' abstraction.

   - Support more complex generics in workqueue's 'impl_has_work!'
     macro.

  'macros' crate:

   - Add 'firmware' field support to the 'module!' macro.

   - Improve 'module!' macro documentation.

  Documentation:

   - Provide instructions on what packages should be installed to build
     the kernel in some popular Linux distributions.

   - Introduce the new kernel.org LLVM+Rust toolchains.

   - Explain '#[no_std]'.

  And a few other small bits"

Link: https://rust-lang.github.io/rust-project-goals/2024h2/index.html#flagship-goals [1]

* tag 'rust-6.11' of https://github.com/Rust-for-Linux/linux: (26 commits)
  docs: rust: quick-start: add section on Linux distributions
  rust: warn about `bindgen` versions 0.66.0 and 0.66.1
  rust: start supporting several `bindgen` versions
  rust: work around `bindgen` 0.69.0 issue
  rust: avoid assuming a particular `bindgen` build
  rust: start supporting several compiler versions
  rust: simplify Clippy warning flags set
  rust: relax most deny-level lints to warnings
  rust: allow `dead_code` for never constructed bindings
  rust: init: simplify from `map_err` to `inspect_err`
  rust: macros: indent list item in `paste!`'s docs
  rust: add abstraction for `struct page`
  rust: uaccess: add typed accessors for userspace pointers
  uaccess: always export _copy_[from|to]_user with CONFIG_RUST
  rust: uaccess: add userspace pointers
  kbuild: rust-analyzer: improve comment documentation
  kbuild: rust-analyzer: better error handling
  docs: rust: no_std is used
  rust: alloc: add __GFP_HIGHMEM flag
  rust: alloc: fix typo in docs for GFP_NOWAIT
  ...
2024-07-27 13:44:54 -07:00
Linus Torvalds
bf80f1391a Devicetree fixes for 6.11, part 1
- Treewide conversion of of_property_for_each_u32() to drop internal
   arguments making struct property opaque
 
 - Add binding for Amlogic A4 SoC watchdog
 
 - Fix constraints for AD7192 'single-channel' property
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEktVUI4SxYhzZyEuo+vtdtY28YcMFAmaj8ncACgkQ+vtdtY28
 YcMwZRAAh618Xfw+J8pxv62PMw11r0hgMNYoHPYDMt47D7g9Wwa71xdR6OpfIpf+
 EyHUXrnXJT6f5sm8mVe9Gsni0MZfgdkwchxlCQej0rJKchdLdAFNXbg4GbhF+0Ht
 tA3Y6bPB9FYKHExd87flnt4AO3ypF+1ihjSAAoy4EyEZUfyKgQVPyebDGwlPYlkH
 dmhF+q9d94LVw3lj/C7htWGELProogsU3i498ey7m/w8jwiJav2DVJ0cRuld/aPG
 7VwGQhJzdndlH1MPcl9slzIPadUrZ0S3/7V4c9cC0E22XpHJzp4RSdGmzsXJ7adp
 Q+OlQYiyZLLhEA/alVO/j5SJtfxt+T6+lrpbbu1wcJMFoukXusvL+0KbxxbExEn0
 /3MrZuxEq3F+jcKtMR/1PFcO7o1uEzzyTZcdufV3siABjZqmG4AFzBhHWP4Xh2Uw
 6hs7R/Ktf2lmacCK9fawfJF6Qq4RtFIakUuI6S3Q3oHHTRw6kr1Lsw+Wko/K20mO
 BEdfhocxEk5vf/kGxcBfM+GTybhagbBh0GxYB/Lm8vATfLHzhunipbc0ZwozDfPu
 IWiY+Nv+hGeGhfvSfNFUcsknF+QwtSjGis7hQjHkJc/siahaXJVAaf+tvtL1xm/p
 0CGPIJFZgzkcbjCT3iPVaJjfyRlMe9l7HJ6XiBSrMpiFpZPTgT8=
 =Nn/d
 -----END PGP SIGNATURE-----

Merge tag 'devicetree-fixes-for-6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull more devicetree updates from Rob Herring:
 "Most of this is a treewide change to of_property_for_each_u32() which
  was small enough to do in one go before rc1 and avoids the need to
  create of_property_for_each_u32_some_new_name().

   - Treewide conversion of of_property_for_each_u32() to drop internal
     arguments making struct property opaque

   - Add binding for Amlogic A4 SoC watchdog

   - Fix constraints for AD7192 'single-channel' property"

* tag 'devicetree-fixes-for-6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: iio: adc: ad7192: Fix 'single-channel' constraints
  of: remove internal arguments from of_property_for_each_u32()
  dt-bindings: watchdog: add support for Amlogic A4 SoCs
2024-07-27 12:46:16 -07:00
Linus Torvalds
0421621158 firewire fixes for 6.11-rc1
Two commits are included to fix some regressions. These commits should also
 be applied to the v6.10 kernel as well.
 
 The recent integration of compiler collections introduced the technology
 to check flexible array length at runtime by providing proper annotations.
 In v6.10 kernel, a patch was merged into firewire subsystem to utilize it,
 however the annotation was inadequate. There is also the related change for
 the flexible array in sound subsystem, but it causes a regression where
 the data in the payload of isochronous packet is incorrect for some
 devices. These bugs are now fixed.
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQQE66IEYNDXNBPeGKSsLtaWM8LwEwUCZqRPbgAKCRCsLtaWM8Lw
 E4IDAQCr4s3/W1fwkUcxvaFKn4ngELXtZ8D2BtI0I3x+axOvggEA4NhtbSwusyKK
 r3Zsyf8r9WrzIOMFASqqV7LlaiWTogI=
 =eq44
 -----END PGP SIGNATURE-----

Merge tag 'firewire-fixes-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394

Pull firewire fixes from Takashi Sakamoto:
 "The recent integration of compiler collections introduced the
  technology to check flexible array length at runtime by providing
  proper annotations. In v6.10 kernel, a patch was merged into firewire
  subsystem to utilize it, however the annotation was inadequate.

  There is also the related change for the flexible array in sound
  subsystem, but it causes a regression where the data in the payload of
  isochronous packet is incorrect for some devices. These bugs are now
  fixed"

* tag 'firewire-fixes-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
  ALSA: firewire-lib: fix wrong value as length of header for CIP_NO_HEADER case
  Revert "firewire: Annotate struct fw_iso_packet with __counted_by()"
2024-07-27 12:35:12 -07:00
Linus Torvalds
c85e1497dd I3C for 6.11
Drivers:
  - dw: optional apb clock and power management support, IBI handling fixes
  - mipi-i3c-hci: IBI handling fixes
  - svc: few fixes
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEBqsFVZXh8s/0O5JiY6TcMGxwOjIFAmajlukACgkQY6TcMGxw
 OjJ4iw//db7P6x0wmy5xkIRktjCY3rqDyBHvcuoVYuFFQqTyRcu7RybRL8HTiem7
 tE+dd9d2GyMaq2aG3P6lzwRozVUUmTnKECP3IGcPTw70n3y2xQEYC/Y/CCmnSNy4
 hY3m/e9Z0NT7g98rOz6iMJrw0O3TZZVv+va88EK2MvtU76xf2e8y0CZeOsA1c5SZ
 mGnICFtluV2i4Yj+zj6I5e8Dbn+rqpIz3MWtdLzJK9/q6BIZjBtoRiDFXlP5twTf
 4PjqCI0oq/oZmhq6zEPE7eRjr0xYZC7XLDpQPnDXrpJqsXvosW5tDPxHsx0rE3RY
 6q5RwJdSKwKrTT5Ttp3KYAnMjaxTScYoXuMx5f5JpdxjeJ0iTNi7cmoobqw5uJIh
 0RPBxPYmQlW/eHcvY/7Se+b4VwGM2upIhJRU+1Y0hRJYcF/qXA/KR2jQz0fIt7O2
 agWjcc3SW429YXfYfy7SSRLT790n913bypUoO6eUE8Hde9oyqSLAKWbrZsTj/nBx
 PhRszqmlVTWvVWxHIhy6fLS+NIDefWexL7zszQg9ME4AdafUBDOoabDSn1IjN1WC
 +/YPwkv9Q9gQC43vg/6Lu7r3IghsWLdRt66cSRok3KGfvQbPIUwbzgNAjHOace0h
 DS37RtB4LXVWMWJ2WbE3N6N9qmlsFAstimdoffUCGbb4cuWxnwU=
 =WFhg
 -----END PGP SIGNATURE-----

Merge tag 'i3c/for-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux

Pull i3c updates from Alexandre Belloni:
 "This cycle, there are new features for the Designware controller and
  fixes for the other IPs:

   - dw: optional apb clock and power management support, IBI handling
     fixes

   - mipi-i3c-hci: IBI handling fixes

   - svc: a few fixes"

* tag 'i3c/for-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
  dt-bindings: i3c: add header for generic I3C flags
  i3c: master: svc: Fix error code in svc_i3c_master_do_daa_locked()
  i3c: master: Enhance i3c_bus_type visibility for device searching & event monitoring
  i3c: dw: Add power management support
  i3c: dw: Add some functions for reusability
  i3c: dw: Save timing registers and other values
  i3c: master: svc: Improve DAA STOP handle code logic
  i3c: dw: Add optional apb clock
  i3c: dw: Use new *_enabled clk API
  dt-bindings: i3c: dw: Add apb clock binding
  i3c: master: svc: Convert comma to semicolon
  i3c: mipi-i3c-hci: Round IBI data chunk size to HW supported value
  i3c: mipi-i3c-hci: Error out instead on BUG_ON() in IBI DMA setup
  i3c: mipi-i3c-hci: Set IBI Status and Data Ring base addresses
  i3c: mipi-i3c-hci: Switch to lower_32_bits()/upper_32_bits() helpers
  i3c: dw: Remove ibi_capable property
  i3c: dw: Fix IBI intr programming
  i3c: dw: Fix clearing queue thld
  i3c: mipi-i3c-hci: Fix number of DAT/DCT entries for HCI versions < 1.1
  i3c: master: svc: resend target address when get NACK
2024-07-27 10:53:06 -07:00
Linus Torvalds
7b0acd911c 11 hotfixes, 7 of which are cc:stable. 7 are MM, 4 are other.
-----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZqQWWQAKCRDdBJ7gKXxA
 jqJVAP9vU9HNzIyKDOOqoNHKMI+VzGn39w1FihWjG6AU5a+9NQD+MZJwr7bBwkpH
 ii43HLUGvNRQtsldBZSRypsaitCSwAI=
 =HGce
 -----END PGP SIGNATURE-----

Merge tag 'mm-hotfixes-stable-2024-07-26-14-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc hotfixes from Andrew Morton:
 "11 hotfixes, 7 of which are cc:stable.  7 are MM, 4 are other"

* tag 'mm-hotfixes-stable-2024-07-26-14-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  nilfs2: handle inconsistent state in nilfs_btnode_create_block()
  selftests/mm: skip test for non-LPA2 and non-LVA systems
  mm/page_alloc: fix pcp->count race between drain_pages_zone() vs __rmqueue_pcplist()
  mm: memcg: add cacheline padding after lruvec in mem_cgroup_per_node
  alloc_tag: outline and export free_reserved_page()
  decompress_bunzip2: fix rare decompression failure
  mm/huge_memory: avoid PMD-size page cache if needed
  mm: huge_memory: use !CONFIG_64BIT to relax huge page alignment on 32 bit machines
  mm: fix old/young bit handling in the faulting path
  dt-bindings: arm: update James Clark's email address
  MAINTAINERS: mailmap: update James Clark's email address
2024-07-27 10:26:41 -07:00
Linus Torvalds
5256184b61 Fixes and minor updates for the timer migration code:
- Stop testing the group->parent pointer as it is not guaranteed to be
       stable over a chain of operations by design. This includes a warning
       which would be nice to have but it produces false positives due to
       the racy nature of the check.
 
     - Plug a race between CPUs going in and out of idle and a CPU hotplug
       operation. The latter can create and connect a new hierarchy level
       which is missed in the concurrent updates of CPUs which go into idle.
       As a result the events of such a CPU might not be processed and
       timers go stale.
 
       Cure it by splitting the hotplug operation into a prepare and online
       callback. The prepare callback is guaranteed to run on an online and
       therefore active CPU. This CPU updates the hierarchy and being online
       ensures that there is always at least one migrator active which
       handles the modified hierarchy correctly when going idle. The online
       callback which runs on the incoming CPU then just marks the CPU
       active and brings it into operation.
 
     - Improve tracing and polish the code further so it is more obvious
       what's going on.
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmajmXYTHHRnbHhAbGlu
 dXRyb25peC5kZQAKCRCmGPVMDXSYoWaGD/4iAuj0S3AQ+odB/Fkg1cvCF8YbOJGy
 PEMSDnYtW7ErShEwVQMsWnXCFhIMuqMN0KIzOChpya2ZkmdT47mNwKuwdOMEQZzg
 dKhmqGWR+sk4LMszCFbf5u6JjJeQ+nnxthgJ1IieJwC4VEfRceXYk7ng6Wvu1+lU
 JEIukUh9nRJWma7FYW8MeNZ4lJGdvawZ5UjUAkPtzeKWn0+0/oqV5t1c8E/1jBbi
 sKZW2soL716Xd/3QJUKKmtAcH7yDFwq5AY5bJURr5ztJw/yr2loVdvAPEdn/RQ6f
 fzN/J+nu2ig14g/QvhI8Ke+HbHJEZHpo6simSZRbdaqnCX3R/lYZwLDe7EGjqKIb
 0slsx2V1UxQ+qIYRplrtr/HGChjG/mXDLPIWRWjsiUAqyygy6QtUIko9AuH99Kd6
 7cBjOzajKIAA/J9SUD03VgjXcQ53bW64NMe2pOX9ED1mbfmmu/ROd0neOgksKw5o
 G5XQ+T6tNOoHMzJgv4R8PiViVdrf53A/g1wYTY1RR3XI8IWpounkyDExDvbtigGo
 N+reKoawDGpXeMAByO2E6UDFNA05NYPjlvSrzTS5ywwyF1qCowKI1Qyup9wA/God
 WJvfesmOJHtfcuUcVZf6Pm6+otJiKrT3reauFd6laEbyRuGTKvtNN/pQa6yxiZzT
 FTxZKpcYkPE76g==
 =G1Lg
 -----END PGP SIGNATURE-----

Merge tag 'timers-urgent-2024-07-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer migration updates from Thomas Gleixner:
 "Fixes and minor updates for the timer migration code:

   - Stop testing the group->parent pointer as it is not guaranteed to
     be stable over a chain of operations by design.

     This includes a warning which would be nice to have but it produces
     false positives due to the racy nature of the check.

   - Plug a race between CPUs going in and out of idle and a CPU hotplug
     operation. The latter can create and connect a new hierarchy level
     which is missed in the concurrent updates of CPUs which go into
     idle. As a result the events of such a CPU might not be processed
     and timers go stale.

     Cure it by splitting the hotplug operation into a prepare and
     online callback. The prepare callback is guaranteed to run on an
     online and therefore active CPU. This CPU updates the hierarchy and
     being online ensures that there is always at least one migrator
     active which handles the modified hierarchy correctly when going
     idle. The online callback which runs on the incoming CPU then just
     marks the CPU active and brings it into operation.

   - Improve tracing and polish the code further so it is more obvious
     what's going on"

* tag 'timers-urgent-2024-07-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  timers/migration: Fix grammar in comment
  timers/migration: Spare write when nothing changed
  timers/migration: Rename childmask by groupmask to make naming more obvious
  timers/migration: Read childmask and parent pointer in a single place
  timers/migration: Use a single struct for hierarchy walk data
  timers/migration: Improve tracing
  timers/migration: Move hierarchy setup into cpuhotplug prepare callback
  timers/migration: Do not rely always on group->parent
2024-07-27 10:19:55 -07:00
Linus Torvalds
c9f33436d8 RISC-V Patches for the 6.11 Merge Window, Part 2
* Support for NUMA (via SRAT and SLIT), console output (via SPCR), and
   cache info (via PPTT) on ACPI-based systems.
 * The trap entry/exit code no longer breaks the return address stack
   predictor on many systems, which results in an improvement to trap
   latency.
 * Support for HAVE_ARCH_STACKLEAK.
 * The sv39 linear map has been extended to support 128GiB mappings.
 * The frequency of the mtime CSR is now visible via hwprobe.
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCAAxFiEEKzw3R0RoQ7JKlDp6LhMZ81+7GIkFAmaj2EYTHHBhbG1lckBk
 YWJiZWx0LmNvbQAKCRAuExnzX7sYiVG3D/9kNHTI09iPDJd6fTChE3cpMxy7xXXE
 URX3Avu+gYsJmIbYyg4RnQ8FGFN7icKBCrQqs7JmLliU0NU+YMcCcjsJA2QaivbD
 VAlaex1qNcvNGteHrpbqhr3Zs4zw8GlBkB3KFTLyPAp61bybGo0a/A5ONJ7ScQIW
 RWHewAPgb86cQ0Q34JpO87TqvMM0KMvhQP5dip+olaFjLRBzhXmGFZfHqA80kTWl
 0ytYclVCHZMtO/5mnQpuIOVs1IKw9L4wa0sivOQF0iLTqfKDFALa6yZsThHA/w3e
 JVuBAdQhcPZ3fgO2fUfJPlW16GmRC2/tdiFg5NFw8k4vo7DYBwX55ztPKXqDrJDM
 8ah85IeLiPar/A/uHdn6bPjK+aGMuzklKF50r62XXAc2fL8mza1sdvKCVOy2EOLn
 JyGI9c/10KpvN/DW8g7hPefhvbx4+tCKkFcPqf++VQha6W8cQdCKi+Li0Pm8TTnp
 XPQjIvSlDDG1Pl4ofgBSFoyB8pkBXNzvv8NZp+YYtnqSOLAKaZuP+KwA8TwHdvGM
 pdCXcL3KHiLy4/pJWEoNTutD0mbJ7PUIb2P/KkjqYDgp4F1n0Hg+/aeSIp+7a4Pv
 yTBctIGxrlriQMIdtWCR8tyhcPP4pDpGYkW0K15EE16G0NK0fjD89LEXYqT6ae2R
 C0QgiwnVe/eopg==
 =zeUn
 -----END PGP SIGNATURE-----

Merge tag 'riscv-for-linus-6.11-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull more RISC-V updates from Palmer Dabbelt:

 - Support for NUMA (via SRAT and SLIT), console output (via SPCR), and
   cache info (via PPTT) on ACPI-based systems.

 - The trap entry/exit code no longer breaks the return address stack
   predictor on many systems, which results in an improvement to trap
   latency.

 - Support for HAVE_ARCH_STACKLEAK.

 - The sv39 linear map has been extended to support 128GiB mappings.

 - The frequency of the mtime CSR is now visible via hwprobe.

* tag 'riscv-for-linus-6.11-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (21 commits)
  RISC-V: Provide the frequency of time CSR via hwprobe
  riscv: Extend sv39 linear mapping max size to 128G
  riscv: enable HAVE_ARCH_STACKLEAK
  riscv: signal: Remove unlikely() from WARN_ON() condition
  riscv: Improve exception and system call latency
  RISC-V: Select ACPI PPTT drivers
  riscv: cacheinfo: initialize cacheinfo's level and type from ACPI PPTT
  riscv: cacheinfo: remove the useless input parameter (node) of ci_leaf_init()
  RISC-V: ACPI: Enable SPCR table for console output on RISC-V
  riscv: boot: remove duplicated targets line
  trace: riscv: Remove deprecated kprobe on ftrace support
  riscv: cpufeature: Extract common elements from extension checking
  riscv: Introduce vendor variants of extension helpers
  riscv: Add vendor extensions to /proc/cpuinfo
  riscv: Extend cpufeature.c to detect vendor extensions
  RISC-V: run savedefconfig for defconfig
  RISC-V: hwprobe: sort EXT_KEY()s in hwprobe_isa_ext0() alphabetically
  ACPI: NUMA: replace pr_info with pr_debug in arch_acpi_numa_init
  ACPI: NUMA: change the ACPI_NUMA to a hidden option
  ACPI: NUMA: Add handler for SRAT RINTC affinity structure
  ...
2024-07-27 10:14:34 -07:00
Takashi Sakamoto
00e3913b04 Revert "firewire: Annotate struct fw_iso_packet with __counted_by()"
This reverts commit d3155742db.

The header_length field is byte unit, thus it can not express the number of
elements in header field. It seems that the argument for counted_by
attribute can have no arithmetic expression, therefore this commit just
reverts the issued commit.

Suggested-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20240725161648.130404-1-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
2024-07-27 10:28:28 +09:00
Linus Torvalds
3a7e02c040 minmax: avoid overly complicated constant expressions in VM code
The minmax infrastructure is overkill for simple constants, and can
cause huge expansions because those simple constants are then used by
other things.

For example, 'pageblock_order' is a core VM constant, but because it was
implemented using 'min_t()' and all the type-checking that involves, it
actually expanded to something like 2.5kB of preprocessor noise.

And when that simple constant was then used inside other expansions:

  #define pageblock_nr_pages      (1UL << pageblock_order)
  #define pageblock_start_pfn(pfn)  ALIGN_DOWN((pfn), pageblock_nr_pages)

and we then use that inside a 'max()' macro:

	case ISOLATE_SUCCESS:
		update_cached = false;
		last_migrated_pfn = max(cc->zone->zone_start_pfn,
			pageblock_start_pfn(cc->migrate_pfn - 1));

the end result was that one statement expanding to 253kB in size.

There are probably other cases of this, but this one case certainly
stood out.

I've added 'MIN_T()' and 'MAX_T()' macros for this kind of "core simple
constant with specific type" use.  These macros skip the type checking,
and as such need to be very sparingly used only for obvious cases that
have active issues like this.

Reported-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Link: https://lore.kernel.org/all/36aa2cad-1db1-4abf-8dd2-fb20484aabc3@lucifer.local/
Cc: David Laight <David.Laight@aculab.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-07-26 15:32:27 -07:00
Roman Gushchin
f59adcf593 mm: memcg: add cacheline padding after lruvec in mem_cgroup_per_node
Oliver Sand reported a performance regression caused by commit
98c9daf5ae ("mm: memcg: guard memcg1-specific members of struct
mem_cgroup_per_node"), which puts some fields of the mem_cgroup_per_node
structure under the CONFIG_MEMCG_V1 config option.  Apparently it causes a
false cache sharing between lruvec and lru_zone_size members of the
structure.  Fix it by adding an explicit padding after the lruvec member.

Even though the padding is not required with CONFIG_MEMCG_V1 set, it seems
like the introduced memory overhead is not significant enough to warrant
another divergence in the mem_cgroup_per_node layout, so the padding is
added unconditionally.

Link: https://lkml.kernel.org/r/20240723171244.747521-1-roman.gushchin@linux.dev
Fixes: 98c9daf5ae ("mm: memcg: guard memcg1-specific members of struct mem_cgroup_per_node")
Signed-off-by: Roman Gushchin <roman.gushchin@linux.dev>
Reported-by: kernel test robot <oliver.sang@intel.com>
Closes: https://lore.kernel.org/oe-lkp/202407121335.31a10cb6-oliver.sang@intel.com
Tested-by: Oliver Sang <oliver.sang@intel.com>
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-07-26 14:33:09 -07:00
Suren Baghdasaryan
b3bebe4430 alloc_tag: outline and export free_reserved_page()
Outline and export free_reserved_page() because modules use it and it in
turn uses page_ext_{get|put} which should not be exported.  The same
result could be obtained by outlining {get|put}_page_tag_ref() but that
would have higher performance impact as these functions are used in more
performance critical paths.

Link: https://lkml.kernel.org/r/20240717212844.2749975-1-surenb@google.com
Fixes: dcfe378c81 ("lib: introduce support for page allocation tagging")
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202407080044.DWMC9N9I-lkp@intel.com/
Suggested-by: Christoph Hellwig <hch@infradead.org>
Suggested-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Kees Cook <keescook@chromium.org>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: Sourav Panda <souravpanda@google.com>
Cc: <stable@vger.kernel.org>	[6.10]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-07-26 14:33:09 -07:00
Gavin Shan
d659b715e9 mm/huge_memory: avoid PMD-size page cache if needed
xarray can't support arbitrary page cache size.  the largest and supported
page cache size is defined as MAX_PAGECACHE_ORDER by commit 099d90642a
("mm/filemap: make MAX_PAGECACHE_ORDER acceptable to xarray").  However,
it's possible to have 512MB page cache in the huge memory's collapsing
path on ARM64 system whose base page size is 64KB.  512MB page cache is
breaking the limitation and a warning is raised when the xarray entry is
split as shown in the following example.

[root@dhcp-10-26-1-207 ~]# cat /proc/1/smaps | grep KernelPageSize
KernelPageSize:       64 kB
[root@dhcp-10-26-1-207 ~]# cat /tmp/test.c
   :
int main(int argc, char **argv)
{
	const char *filename = TEST_XFS_FILENAME;
	int fd = 0;
	void *buf = (void *)-1, *p;
	int pgsize = getpagesize();
	int ret = 0;

	if (pgsize != 0x10000) {
		fprintf(stdout, "System with 64KB base page size is required!\n");
		return -EPERM;
	}

	system("echo 0 > /sys/devices/virtual/bdi/253:0/read_ahead_kb");
	system("echo 1 > /proc/sys/vm/drop_caches");

	/* Open the xfs file */
	fd = open(filename, O_RDONLY);
	assert(fd > 0);

	/* Create VMA */
	buf = mmap(NULL, TEST_MEM_SIZE, PROT_READ, MAP_SHARED, fd, 0);
	assert(buf != (void *)-1);
	fprintf(stdout, "mapped buffer at 0x%p\n", buf);

	/* Populate VMA */
	ret = madvise(buf, TEST_MEM_SIZE, MADV_NOHUGEPAGE);
	assert(ret == 0);
	ret = madvise(buf, TEST_MEM_SIZE, MADV_POPULATE_READ);
	assert(ret == 0);

	/* Collapse VMA */
	ret = madvise(buf, TEST_MEM_SIZE, MADV_HUGEPAGE);
	assert(ret == 0);
	ret = madvise(buf, TEST_MEM_SIZE, MADV_COLLAPSE);
	if (ret) {
		fprintf(stdout, "Error %d to madvise(MADV_COLLAPSE)\n", errno);
		goto out;
	}

	/* Split xarray entry. Write permission is needed */
	munmap(buf, TEST_MEM_SIZE);
	buf = (void *)-1;
	close(fd);
	fd = open(filename, O_RDWR);
	assert(fd > 0);
	fallocate(fd, FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE,
 		  TEST_MEM_SIZE - pgsize, pgsize);
out:
	if (buf != (void *)-1)
		munmap(buf, TEST_MEM_SIZE);
	if (fd > 0)
		close(fd);

	return ret;
}

[root@dhcp-10-26-1-207 ~]# gcc /tmp/test.c -o /tmp/test
[root@dhcp-10-26-1-207 ~]# /tmp/test
 ------------[ cut here ]------------
 WARNING: CPU: 25 PID: 7560 at lib/xarray.c:1025 xas_split_alloc+0xf8/0x128
 Modules linked in: nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib    \
 nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct      \
 nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4      \
 ip_set rfkill nf_tables nfnetlink vfat fat virtio_balloon drm fuse   \
 xfs libcrc32c crct10dif_ce ghash_ce sha2_ce sha256_arm64 virtio_net  \
 sha1_ce net_failover virtio_blk virtio_console failover dimlib virtio_mmio
 CPU: 25 PID: 7560 Comm: test Kdump: loaded Not tainted 6.10.0-rc7-gavin+ #9
 Hardware name: QEMU KVM Virtual Machine, BIOS edk2-20240524-1.el9 05/24/2024
 pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
 pc : xas_split_alloc+0xf8/0x128
 lr : split_huge_page_to_list_to_order+0x1c4/0x780
 sp : ffff8000ac32f660
 x29: ffff8000ac32f660 x28: ffff0000e0969eb0 x27: ffff8000ac32f6c0
 x26: 0000000000000c40 x25: ffff0000e0969eb0 x24: 000000000000000d
 x23: ffff8000ac32f6c0 x22: ffffffdfc0700000 x21: 0000000000000000
 x20: 0000000000000000 x19: ffffffdfc0700000 x18: 0000000000000000
 x17: 0000000000000000 x16: ffffd5f3708ffc70 x15: 0000000000000000
 x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000
 x11: ffffffffffffffc0 x10: 0000000000000040 x9 : ffffd5f3708e692c
 x8 : 0000000000000003 x7 : 0000000000000000 x6 : ffff0000e0969eb8
 x5 : ffffd5f37289e378 x4 : 0000000000000000 x3 : 0000000000000c40
 x2 : 000000000000000d x1 : 000000000000000c x0 : 0000000000000000
 Call trace:
  xas_split_alloc+0xf8/0x128
  split_huge_page_to_list_to_order+0x1c4/0x780
  truncate_inode_partial_folio+0xdc/0x160
  truncate_inode_pages_range+0x1b4/0x4a8
  truncate_pagecache_range+0x84/0xa0
  xfs_flush_unmap_range+0x70/0x90 [xfs]
  xfs_file_fallocate+0xfc/0x4d8 [xfs]
  vfs_fallocate+0x124/0x2f0
  ksys_fallocate+0x4c/0xa0
  __arm64_sys_fallocate+0x24/0x38
  invoke_syscall.constprop.0+0x7c/0xd8
  do_el0_svc+0xb4/0xd0
  el0_svc+0x44/0x1d8
  el0t_64_sync_handler+0x134/0x150
  el0t_64_sync+0x17c/0x180

Fix it by correcting the supported page cache orders, different sets for
DAX and other files.  With it corrected, 512MB page cache becomes
disallowed on all non-DAX files on ARM64 system where the base page size
is 64KB.  After this patch is applied, the test program fails with error
-EINVAL returned from __thp_vma_allowable_orders() and the madvise()
system call to collapse the page caches.

Link: https://lkml.kernel.org/r/20240715000423.316491-1-gshan@redhat.com
Fixes: 6b24ca4a1a ("mm: Use multi-index entries in the page cache")
Signed-off-by: Gavin Shan <gshan@redhat.com>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Ryan Roberts <ryan.roberts@arm.com>
Acked-by: Zi Yan <ziy@nvidia.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: Don Dutile <ddutile@redhat.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Peter Xu <peterx@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: William Kucharski <william.kucharski@oracle.com>
Cc: <stable@vger.kernel.org>	[5.17+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-07-26 14:33:09 -07:00
Paolo Bonzini
e4ee544792 KVM: guest_memfd: let kvm_gmem_populate() operate only on private gfns
This check is currently performed by sev_gmem_post_populate(), but it
applies to all callers of kvm_gmem_populate(): the point of the function
is that the memory is being encrypted and some work has to be done
on all the gfns in order to encrypt them.

Therefore, check the KVM_MEMORY_ATTRIBUTE_PRIVATE attribute prior
to invoking the callback, and stop the operation if a shared page
is encountered.  Because CONFIG_KVM_PRIVATE_MEM in principle does
not require attributes, this makes kvm_gmem_populate() depend on
CONFIG_KVM_GENERIC_PRIVATE_MEM (which does require them).

Reviewed-by: Michael Roth <michael.roth@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-07-26 14:46:15 -04:00
Paolo Bonzini
4b5f67120a KVM: extend kvm_range_has_memory_attributes() to check subset of attributes
While currently there is no other attribute than KVM_MEMORY_ATTRIBUTE_PRIVATE,
KVM code such as kvm_mem_is_private() is written to expect their existence.
Allow using kvm_range_has_memory_attributes() as a multi-page version of
kvm_mem_is_private(), without it breaking later when more attributes are
introduced.

Reviewed-by: Michael Roth <michael.roth@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-07-26 14:46:15 -04:00
Paolo Bonzini
7239ed7467 KVM: remove kvm_arch_gmem_prepare_needed()
It is enough to return 0 if a guest need not do any preparation.
This is in fact how sev_gmem_prepare() works for non-SNP guests,
and it extends naturally to Intel hosts: the x86 callback for
gmem_prepare is optional and returns 0 if not defined.

Reviewed-by: Michael Roth <michael.roth@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-07-26 14:46:14 -04:00
Paolo Bonzini
564429a6bd KVM: rename CONFIG_HAVE_KVM_GMEM_* to CONFIG_HAVE_KVM_ARCH_GMEM_*
Add "ARCH" to the symbols; shortly, the "prepare" phase will include both
the arch-independent step to clear out contents left in the page by the
host, and the arch-dependent step enabled by CONFIG_HAVE_KVM_GMEM_PREPARE.
For consistency do the same for CONFIG_HAVE_KVM_GMEM_INVALIDATE as well.

Reviewed-by: Michael Roth <michael.roth@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-07-26 14:46:14 -04:00
Linus Torvalds
eb966e0c5f sound fixes for 6.11-rc1
A collection of the fixes gathered since the previous PR.
 We see a bit large LOCs at a HD-audio quirk, but that's only bulk
 COEF data, hence it's safe to take.  In addition to that, there
 were two minor fixes for MIDI 2.0 handling for ALSA core, and the
 rest are all rather random small and device-specific fixes.
 -----BEGIN PGP SIGNATURE-----
 
 iQJCBAABCAAsFiEEIXTw5fNLNI7mMiVaLtJE4w1nLE8FAmajSFIOHHRpd2FpQHN1
 c2UuZGUACgkQLtJE4w1nLE8SjBAAyynx5t5Ui/Gp9VqvyFzUAl9zpHn4hIz5T/SN
 +XRNcq9VN+anqu+55PqWpoX5E0WRQW36AyCeMO7yA0RLhTCvPAtH2OmLfHQhvh48
 +Zpw89molMP19KdRi+nezJlrTQby8zHBGConN3jalovRrM1bqpGeiQ3bdydhqSdt
 dAfhCEn3ckOhNZU0PTASnZGScqTpl+OP0XKXSD3KBceT7EEsUodTcq1NqDcoHbBS
 V/4hJct7vDcbA64P+zo3rrhEkbeDa3s152ajcs589aElIKQVTQhZNNvxe7ygDXHe
 30qXjCI6gQDUWuGHwuN0IlNiI/GkhLExvK+Wa1xBP+vjTqWtpxzuQ8rMwa+EM48Y
 AZ7Rk7GUsvceCzGIto6p+ZRlt1LG2dJFYbfqw9fUA6JvMDhStDcrFzSooWrmcl8Z
 8EN7L9viYEDl15TzSA6FKTeFh1gSPe+/hsZ9r3XuTL611/paqPs+HTnQ3T7ua9mr
 EylSfEeJ3NKbcJqwnCLClSzmgClPaBkseDwnHS0OT4xMmbI5Q1/WIzjdvF+EM2RN
 RxgkvJyhdpp/9bxtkeojekKcK4qeuGcY4Gaqd6etBX9KgfyTh/n098dlI0BJmZrV
 y3cZNH9zojzzTmP7+UcTjVp+LocF5nswB3rhMJgYKJPFXJMoj5xzHIm8LyRt7qTQ
 9xIYlAY=
 =RcQQ
 -----END PGP SIGNATURE-----

Merge tag 'sound-fix-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of fixes gathered since the previous pull.

  We see a bit large LOCs at a HD-audio quirk, but that's only bulk COEF
  data, hence it's safe to take. In addition to that, there were two
  minor fixes for MIDI 2.0 handling for ALSA core, and the rest are all
  rather random small and device-specific fixes"

* tag 'sound-fix-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ASoC: fsl-asoc-card: Dynamically allocate memory for snd_soc_dai_link_components
  ASoC: amd: yc: Support mic on Lenovo Thinkpad E16 Gen 2
  ALSA: hda/realtek: Implement sound init sequence for Samsung Galaxy Book3 Pro 360
  ALSA: hda/realtek: cs35l41: Fixup remaining asus strix models
  ASoC: SOF: ipc4-topology: Preserve the DMA Link ID for ChainDMA on unprepare
  ASoC: SOF: ipc4-topology: Only handle dai_config with HW_PARAMS for ChainDMA
  ALSA: ump: Force 1 Group for MIDI1 FBs
  ALSA: ump: Don't update FB name for static blocks
  ALSA: usb-audio: Add a quirk for Sonix HD USB Camera
  ASoC: TAS2781: Fix tasdev_load_calibrated_data()
  ASoC: tegra: select CONFIG_SND_SIMPLE_CARD_UTILS
  ASoC: Intel: use soc_intel_is_byt_cr() only when IOSF_MBI is reachable
  ALSA: usb-audio: Move HD Webcam quirk to the right place
  ALSA: hda: tas2781: mark const variables as __maybe_unused
  ALSA: usb-audio: Fix microphone sound on HD webcam.
  ASoC: sof: amd: fix for firmware reload failure in Vangogh platform
  ASoC: Intel: Fix RT5650 SSP lookup
  ASOC: SOF: Intel: hda-loader: only wait for HDaudio IOC for IPC4 devices
  ASoC: SOF: imx8m: Fix DSP control regmap retrieval
2024-07-26 11:01:31 -07:00
Linus Torvalds
51c4767503 bitmap-6.11-rc1
Random fixes for v6.11.
 -----BEGIN PGP SIGNATURE-----
 
 iQGzBAABCgAdFiEEi8GdvG6xMhdgpu/4sUSA/TofvsgFAmahKbIACgkQsUSA/Tof
 vsh8zQwAvguyeNubDFqdMe3E/Vp1J3WqXsBFzbE1rGLCyI2S0cgJFL5BlW51zY47
 70wLt9EmroEobwj1qHSQlzejNp31kSBQ1Sqq25oivfJqEF1elDT5PQxYqBbU1C9Y
 kVWnxtb+oKaoFd5jiBK8+iTl8dXjT6H2RoV0zpPab/JPcqsjwFfkUvtENt/Kpo5c
 aRrGTFwshdp5eT4sEZQv57VKroBcwZOvv2//qrklFHrJHl4pjMT8eaX3twcQysoy
 umTVt+TK6NErLnht+VRQJ2/L02FKi7b+bHePVgNzaT+1FSDMT4FltmZd96Xwbzah
 hSkwWtqy0N2gaTcqie9nwdEiCJGjF39M7k2wangUS91CeDsbIUSsJgDCESUCm+zK
 hRqleGOnoeg4+jZBci7M53lKa/pADlmLhnU8iAc3BSKozsaioltkT+hHn8vAkstk
 h/kHlbfkzasufUWAhduBpIn384gWWEY6RACffgCsOuvbT+ZyDKUJpKYaEwVx+Pri
 l72j0hs9
 =RbET
 -----END PGP SIGNATURE-----

Merge tag 'bitmap-6.11-rc1' of https://github.com:/norov/linux

Pull bitmap updates from Yury Norov:
 "Random fixes"

* tag 'bitmap-6.11-rc1' of https://github.com:/norov/linux:
  riscv: Remove unnecessary int cast in variable_fls()
  radix tree test suite: put definition of bitmap_clear() into lib/bitmap.c
  bitops: Add a comment explaining the double underscore macros
  lib: bitmap: add missing MODULE_DESCRIPTION() macros
  cpumask: introduce assign_cpu() macro
2024-07-26 09:50:36 -07:00
Pavel Begunkov
342b2e395d io_uring/napi: use ktime in busy polling
It's more natural to use ktime/ns instead of keeping around usec,
especially since we're comparing it against user provided timers,
so convert napi busy poll internal handling to ktime. It's also nicer
since the type (ktime_t vs unsigned long) now tells the unit of measure.

Keep everything as ktime, which we convert to/from micro seconds for
IORING_[UN]REGISTER_NAPI. The net/ busy polling works seems to work with
usec, however it's not real usec as shift by 10 is used to get it from
nsecs, see busy_loop_current_time(), so it's easy to get truncated nsec
back and we get back better precision.

Note, we can further improve it later by removing the truncation and
maybe convincing net/ to use ktime/ns instead.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/95e7ec8d095069a3ed5d40a4bc6f8b586698bc7e.1722003776.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-07-26 08:31:59 -06:00
Jens Axboe
f6bb5254b7 nvme fixes for Linux 6.11
- Fix request without payloads cleanup  (Leon)
  - Use new protection information format (Francis)
  - Improved debug message for lost pci link (Bart)
  - Another apst quirk (Wang)
  - Use appropriate sysfs api for printing chars (Markus)
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE3Fbyvv+648XNRdHTPe3zGtjzRgkFAmajrFcACgkQPe3zGtjz
 Rgk4QRAA357EtsOgDKAbodaePFsGhmfhVEVhizCkw+yj+l73jGWMRMDfbpNsnkii
 OTJaXhQgVPrCBGnmbgHn5GehEKJ/VZwW4fFbF42wvetFXWSYFDPL2yqC3YpaPjNp
 aSJvUM0rw4f+JE52tTPQvVzLQ/M9PZFsJ6sUmoozV5MoPLt4eKKUEHKigCXpXV/p
 AOwiejVVk035WbKNq4R8DoQsa05Yk0Tv5zKsFgmXEZjrnorC0dpqWQjT5HH6V9pt
 eHTA2cxKq9qAHBN1Zm/3HUOmxmJZ1GW3AKLxYM+k0ornnfnO7inlQwNJDsQItXXS
 ZNBELiYIIObVoy6COB03NWMSCcS/TrpfSKJ9s+JOdJt/T+AOVCwQkqpIff6aJTaH
 k4ppVjChmaY3+taIkLQ5nC1zecCZr7hY+xL0ZkUGhlznKn9x2a1zOBZ6tUuabul6
 57JztkeXPyTNZ/t1WhYQQpGQ4MCLXnu81gMRzVKfJcmtMOSrBOO1p8eNjb/LgM4M
 Qpu9VKS33OBrmMEBlhnBvhkFIXxHUU1CjZJkQ2MYm4YLLnaO4VmmOk3tcX1mpID4
 R6GrsXAOBlqjtAyqsTGQJ/+Z5BRp1nhOk/E0APiD+sbgJPiRSJ2HNZpDEbOroYOy
 4IiaQwZbyGSjieBWWe0fMMCBbazk2S9ws57eAbVh5/r6L+DSWTc=
 =1Rzv
 -----END PGP SIGNATURE-----

Merge tag 'nvme-6.11-2024-07-26' of git://git.infradead.org/nvme into block-6.11

Pull NVMe fixes from Keith:

"nvme fixes for Linux 6.11

 - Fix request without payloads cleanup  (Leon)
 - Use new protection information format (Francis)
 - Improved debug message for lost pci link (Bart)
 - Another apst quirk (Wang)
 - Use appropriate sysfs api for printing chars (Markus)"

* tag 'nvme-6.11-2024-07-26' of git://git.infradead.org/nvme:
  nvme-pci: add missing condition check for existence of mapped data
  nvme-core: choose PIF from QPIF if QPIFS supports and PIF is QTYPE
  nvme-pci: Fix the instructions for disabling power management
  nvme: remove redundant bdev local variable
  nvme-fabrics: Use seq_putc() in __nvmf_concat_opt_tokens()
  nvme/pci: Add APST quirk for Lenovo N60z laptop
2024-07-26 08:06:15 -06:00
Carlos Song
24168c5e6d dt-bindings: i3c: add header for generic I3C flags
Add header file for generic I3C flags to avoid hard code in dts file.

Signed-off-by: Carlos Song <carlos.song@nxp.com>
Reviewed-by: Frank Li <frank.li@nxp.com>
Acked-by: Jason Liu <jason.hui.liu@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240715225351.3237284-1-Frank.Li@nxp.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2024-07-26 14:21:30 +02:00
Bhoomik Gupta
63c33ca096 i3c: master: Enhance i3c_bus_type visibility for device searching & event monitoring
Improve the visibility of i3c_bus_type to facilitate searching for
i3c devices attached to the i3c bus. Enable other drivers to use
bus_register_notifier to monitor i3c bus device events.

Signed-off-by: Bhoomik Gupta <bhoomik.gupta@nxp.com>
Link: https://lore.kernel.org/r/20240708053835.3003986-1-bhoomik.gupta@nxp.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2024-07-26 14:21:30 +02:00
Linus Torvalds
1722389b0d A lot of networking people were at a conference last week, busy
catching COVID, so relatively short PR. Including fixes from bpf
 and netfilter.
 
 Current release - regressions:
 
  - tcp: process the 3rd ACK with sk_socket for TFO and MPTCP
 
 Current release - new code bugs:
 
  - l2tp: protect session IDR and tunnel session list with one lock,
    make sure the state is coherent to avoid a warning
 
  - eth: bnxt_en: update xdp_rxq_info in queue restart logic
 
  - eth: airoha: fix location of the MBI_RX_AGE_SEL_MASK field
 
 Previous releases - regressions:
 
  - xsk: require XDP_UMEM_TX_METADATA_LEN to actuate tx_metadata_len,
    the field reuses previously un-validated pad
 
 Previous releases - always broken:
 
  - tap/tun: drop short frames to prevent crashes later in the stack
 
  - eth: ice: add a per-VF limit on number of FDIR filters
 
  - af_unix: disable MSG_OOB handling for sockets in sockmap/sockhash
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE6jPA+I1ugmIBA4hXMUZtbf5SIrsFAmaibxAACgkQMUZtbf5S
 IruuIRAAu96TiN/urPwmKznyb/Sk8x7p8iUzn6OvPS/TUlFUkURQtOh6M9uvbpN4
 x/L//EWkMR0hY4SkBegoiXfb1GS0PjBdWTWUiROm5X9nVHqp5KRZAxWXhjFiS1BO
 BIYOT+JfCl7mQiPs90Mys/cEtYOggMBsCZQVIGw/iYoJLFREqxFSONwa0dG+tGMX
 jn9WNu4yCVDhJ/jtl2MaTsCNtYUaBUgYrKHJBfNGfJ2Lz/7rH9yFui2WSMlmOd/U
 QGeCb1DWURlShlCqY37wNinbFsxWkI5JN00ukTtwFAXLIaqc+zgHcIjrDjTJwK43
 F4tKbJT3+bmehMU/h3Uo3c7DhXl7n9zDGiDtbCxnkykp0sFGJpjhDrWydo51c+YB
 qW5HaNrII2LiDicOVN8L29ylvKp7AEkClxgivEhZVGGk2f/szJRXfp9u3WBn5kAx
 3paH55YN0DEsKbYbb1ZENEI1Vnc/4ff4PxZJCUNKwzcS8wCn1awqwcriK9TjS/cp
 fjilNFT4J3/uFrodHWTkx0jJT6UJFT0aF03qPLUH/J5kG+EVukOf1jBPInNdf1si
 1j47SpblHUe86HiHphFMt32KZ210lJzWxh8uGma57Y2sB9makdLiK4etrFjkiMJJ
 Z8A3kGp3KpFjbuK4tHY25rp+5oxLNNOBNpay29lQrWtCL/NDcaQ=
 =9OsH
 -----END PGP SIGNATURE-----

Merge tag 'net-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from bpf and netfilter.

  A lot of networking people were at a conference last week, busy
  catching COVID, so relatively short PR.

  Current release - regressions:

   - tcp: process the 3rd ACK with sk_socket for TFO and MPTCP

  Current release - new code bugs:

   - l2tp: protect session IDR and tunnel session list with one lock,
     make sure the state is coherent to avoid a warning

   - eth: bnxt_en: update xdp_rxq_info in queue restart logic

   - eth: airoha: fix location of the MBI_RX_AGE_SEL_MASK field

  Previous releases - regressions:

   - xsk: require XDP_UMEM_TX_METADATA_LEN to actuate tx_metadata_len,
     the field reuses previously un-validated pad

  Previous releases - always broken:

   - tap/tun: drop short frames to prevent crashes later in the stack

   - eth: ice: add a per-VF limit on number of FDIR filters

   - af_unix: disable MSG_OOB handling for sockets in sockmap/sockhash"

* tag 'net-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (34 commits)
  tun: add missing verification for short frame
  tap: add missing verification for short frame
  mISDN: Fix a use after free in hfcmulti_tx()
  gve: Fix an edge case for TSO skb validity check
  bnxt_en: update xdp_rxq_info in queue restart logic
  tcp: process the 3rd ACK with sk_socket for TFO/MPTCP
  selftests/bpf: Add XDP_UMEM_TX_METADATA_LEN to XSK TX metadata test
  xsk: Require XDP_UMEM_TX_METADATA_LEN to actuate tx_metadata_len
  bpf: Fix a segment issue when downgrading gso_size
  net: mediatek: Fix potential NULL pointer dereference in dummy net_device handling
  MAINTAINERS: make Breno the netconsole maintainer
  MAINTAINERS: Update bonding entry
  net: nexthop: Initialize all fields in dumped nexthops
  net: stmmac: Correct byte order of perfect_match
  selftests: forwarding: skip if kernel not support setting bridge fdb learning limit
  tipc: Return non-zero value from tipc_udp_addr2str() on error
  netfilter: nft_set_pipapo_avx2: disable softinterrupts
  ice: Fix recipe read procedure
  ice: Add a per-VF limit on number of FDIR filters
  net: bonding: correctly annotate RCU in bond_should_notify_peers()
  ...
2024-07-25 13:32:25 -07:00