Commit Graph

1153508 Commits

Author SHA1 Message Date
Alexander Gordeev 45d619bdaf s390: expicitly align _edata and _end symbols on page boundary
Symbols _edata and _end in the linker script are the
only unaligned expicitly on page boundary. Although
_end is aligned implicitly by BSS_SECTION macro that
is still inconsistent and could lead to a bug if a tool
or function would assume that _edata is as aligned as
others.

For example, vmem_map_init() function does not align
symbols _etext, _einittext etc. Should these symbols
be unaligned as well, the size of ranges to update
were short on one page.

Instead of fixing every occurrence of this kind in the
code and external tools just force the alignment on
these two symbols.

Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-01-06 16:38:21 +01:00
Niklas Schnelle 0d4d52361b s390/debug: add _ASM_S390_ prefix to header guard
Using DEBUG_H without a prefix is very generic and inconsistent with
other header guards in arch/s390/include/asm. In fact it collides with
the same name in the ath9k wireless driver though that depends on !S390
via disabled wireless support. Let's just use a consistent header guard
name and prevent possible future trouble.

Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-01-06 16:38:21 +01:00
Linus Torvalds 88603b6dc4 Linux 6.2-rc2 2023-01-01 13:53:16 -08:00
Linus Torvalds 150aae354b - Pass only an initialized perf event attribute to the LSM hook
- Fix a use-after-free on the perf syscall's error path
 
 - A potential integer overflow fix in amd_core_pmu_init()
 
 - Fix the cgroup events tracking after the context handling rewrite
 
 - Return the proper value from the inherit_event() function on error
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmOxotcACgkQEsHwGGHe
 VUqN0g//fCMUbsO/TRfDavqFMdAYi93EHWwd2I8KUDd2TPKY6KA2gQndw8aEvAF8
 iO/zO0osD0+23ANmpLBIGuyrM41UqiG+U/Q70++t/0yaD4nYegcpIamg518MEAK9
 HxP4Gl3A9Yy4QbcOgLGq+ouOvUljJAB3jhPc+KsWmgxsLrua4JZeEgIwNm/4yLOG
 cgetqX7l1A5ASPxU3MO+wSyjEHVIq6rA6y3HllpIHLYy5/TyvkhNZiykAxRn8Exy
 yznyYkifNUfCh0TOusMLmK5qR/UFPbGbZfxBlw8ni9sIocsz02U3N4XOwBPVgi8x
 2OVyH1j+cZUuBuk4AH39FmaFDe/PZxFiYvInH/Y1vmS5uqi5v7hn23VLxqykPbdw
 Drz/vo7YiuPvM3R1ibf0yXN53mn+zMzKFRYRQwPWN6c1ocxEltaeaDcRsLhh8ql+
 RM2mKVvWjELRuFWQpV8KCKuEpCz/niQ/8wvwXCxtPyJt9wiTPu4+j7K+p27T7FQR
 33zPSGgN/nCuVEBOIsyi3B7zzIoRy0l3nM6tOTZXM/TVFhLyda0fJUV6Ydi39CGy
 Mf1FnLd+9nrR+Oqinh/DzJ5nqoSrSxPV9FXRu+0bMsYD+lbiMtOZFw8VaQzxR1gD
 dUOve8zUgQAusdvGeJU1+iOmdAxbiSS9s3pqw7G+d+O4a/x7PBE=
 =M9iU
 -----END PGP SIGNATURE-----

Merge tag 'perf_urgent_for_v6.2_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf fixes from Borislav Petkov:

 - Pass only an initialized perf event attribute to the LSM hook

 - Fix a use-after-free on the perf syscall's error path

 - A potential integer overflow fix in amd_core_pmu_init()

 - Fix the cgroup events tracking after the context handling rewrite

 - Return the proper value from the inherit_event() function on error

* tag 'perf_urgent_for_v6.2_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/core: Call LSM hook after copying perf_event_attr
  perf: Fix use-after-free in error path
  perf/x86/amd: fix potential integer overflow on shift of a int
  perf/core: Fix cgroup events tracking
  perf core: Return error pointer if inherit_event() fails to find pmu_ctx
2023-01-01 11:27:00 -08:00
Linus Torvalds 5b129817ae - Two fixes to correct how kprobes handles INT3 now that they're added by other
functionality like the rethunks and not only kgdb
 
 - Remove __init section markings of two functions which are referenced by a
   function in the .text section
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmOxoToACgkQEsHwGGHe
 VUoozA//b2pOA7baV5AudIBRZiKK3Tgviy3JfnGuiBMEI9gKQhzkefWQxk4X7hLA
 +b4UIdQMTLHuUqNPpQYgazW6Sb7HS6TqdTww6MNKKrb3ngnGFI+q6ERuoVyvxTeR
 dv9jtU79aqXTc5n2xpEtL2e2aZCmTQyDo853gq8o50Zji2mdSCdizMJzkfzVTZbI
 oXpqyTlpIP2csos9C9w6HXDshF5Papll6CLoxfafm/bakICKTfYO53pK9nWl/Kre
 beDLPuYiY1nHKFTEApyPp4qEGYVaUfxXHDL7taTLxHcoAh2UQgTdMfJthZGLN+M4
 0wgG+oK51I9vULcaIBQ95Qsonl/c7hMx/P2r22XR42hozAkrb8/vQsZD28SJTBlG
 Sqc+ptzTWB0NfNpbvVQAbMLWTghK1fDcPplHDTmVqcFAtDyBMQymXMTnl9eujyBW
 GJmOEAqPb6n9oAfCkERIGCoca3ebDA4hJsYmfxCx+c03Pcr9A1h3zxdGbfl2tazO
 s5un3uK+dSTZKVufQZBpjl7dtqBDNzQX7JVjkKS2ql4i9M9DmbPPagRAnGirxFlR
 WwRWRa9hcM6Jtg5UoH7Go7NW6PQzHFb1/BOqLnNuvq5hCBAB5ae+24+WE4ZNgbcj
 KtpnwRrwpjEltLBhfb+atwpvO+zieB575lNLeUCcbk3/Qjm1AuE=
 =ZQnP
 -----END PGP SIGNATURE-----

Merge tag 'x86_urgent_for_v6.2_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Borislav Petkov:

 - Two fixes to correct how kprobes handles INT3 now that they're added
   by other functionality like the rethunks and not only kgdb

 - Remove __init section markings of two functions which are referenced
   by a function in the .text section

* tag 'x86_urgent_for_v6.2_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/kprobes: Fix optprobe optimization check with CONFIG_RETHUNK
  x86/kprobes: Fix kprobes instruction boudary check with CONFIG_RETHUNK
  x86/calldepth: Fix incorrect init section references
2023-01-01 11:19:50 -08:00
Linus Torvalds 95d248d16f - Prevent the leaking of a debug timer in futex_waitv()
- A preempt-RT mutex locking fix, adding the proper acquire semantics
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmOxn1cACgkQEsHwGGHe
 VUp+AQ/9GilVlaWqloC+sDK/7qTLfmQjR/XwQPii2pMBUO1oRFT7mG+dG7lKNpRL
 WCLTVIrzG528ORJytvMGuqx+CqenuTGPFI9rtizxdtRlNZyiS33hvlaGBPY7XYY7
 G2qugGKuZ7WVKZpq6szPwnrMuWjdsd+XOO+NE3h/5kI2T7ZukmlXl9/EtVii7+y3
 LGVjMhN+R0XCMCPSSPtFx5eUGalemPnGSBcX/Qb4zG1MphSPURFKHEQmWHZzgrkg
 6fmqx773u2mquxTYeEy0FDLjOYFEHlzDFgRtIDBaziHIxjzO/5r09m8RDF2mXetW
 W/pf/Iduh2TZWwJDngmUi0JxqOzz0l8T/6vSCuArYWkjb+0zDOPHuCYwif2iHAQo
 pMn+O5nAtLMZhdk+yjTs4abQ11q9owLh0nGps4A2SKgJIH0mL2BICwRotzuV1sxf
 CGnoOxIxZuZGq8xMoHp6sJ8e4RnJHBAt7PKrCsLTkPAjKjgmBpqshVav//kyCFeY
 2R4rgRY/a42Z86uNSysVnxxkop4vRgTZ3l7TijzyeIbycI7v9WMADk0TKTDgsMbL
 nEnlZPWXJGYNXH71ZPV5TPgidHfiO68sVKerXWRrWRLyGHhY2TC67Lz29vTAlbMK
 NdOM6pO0DkaKSLxEJ6qso819ePnRA/2O5B7xU/Ll7vONjCpHlFw=
 =9LHF
 -----END PGP SIGNATURE-----

Merge tag 'locking_urgent_for_v6.2_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking fixes from Borislav Petkov:

 - Prevent the leaking of a debug timer in futex_waitv()

 - A preempt-RT mutex locking fix, adding the proper acquire semantics

* tag 'locking_urgent_for_v6.2_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  futex: Fix futex_waitv() hrtimer debug object leak on kcalloc error
  rtmutex: Add acquire semantics for rtmutex lock acquisition slow path
2023-01-01 11:15:05 -08:00
Linus Torvalds 8b41948296 drm-fixes for 6.2-rc2
- i915 fixes for newer platforms
 - i915 locking rework to not give up in vm eviction fallback path too
   early
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEb4nG6jLu8Y5XI+PfTA9ye/CYqnEFAmOxgj0ACgkQTA9ye/CY
 qnHzQBAAjClbEPHJd0gz9znJ+zhLT2z9uXqj0s3PX6ipFnctqnsP8Lwb1g3tPc46
 RHB8VY0/3kjaorqM1m0UtFsFQzrt8rp14dYlT5Xl7bdtO4ovRyrCG6ySSdrDA8yH
 /GaFretNVhIl2ERgOgbTkYSfFBBg/rY4M8mvUzICJmi7W73B8jcMS1aoN2PQuGUU
 lwE51qPqyOTO6G6Lhlan8T70MdDdD0o5JYKHD5Gwc2bQB0Gny6Vj6/bKN8AiFP3U
 X+WMu7Sj7hRif7rB7dDks7naE5DAo7DaBuew9RwuuTSqyME14CeZzqD1i7OQi/Dw
 drLlzMwruvFM5sGhPyAwuB+Xx1VNAnnVdEJAJiOJmxqHilUJ3tlVmkJfAmOmLpNL
 TUp7gqER0MJ3Xog2PehkHtbKMhAwnruvZc/C4oidO1tOXXL651+Ttqz1nlKJF9gE
 VBBR7GsSI1fg34L7KtcOVOK4aoPKuzkL7DBCkcOePiaZB115Oke29bBD2UiSBcgE
 s35kCYTdEad67R7kpoqv9cw6ZnXxfa8xb+zCszCbzXQLFBms315//WHAlqttibp/
 Qn8N+3hmX7N6ELBVLkHUkAmSvAzV5A4XE1cLypQztOTWswOoDXBBtxW32Z90vX9o
 uhQrEasjQlR2oWsjnz0WmjiR2go4dXpSBr9ycRO5L4lCXNEAggQ=
 =0nPr
 -----END PGP SIGNATURE-----

Merge tag 'drm-fixes-2023-01-01' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Daniel Vetter:
 "I'm just back from the mountains, and Dave is out at the beach and
  should be back in a week again. Just i915 fixes and since Rodrigo
  bothered to make the pull last week I figured I should warm up gpg and
  forward this in a nice signed tag as a new years present!

   - i915 fixes for newer platforms

   - i915 locking rework to not give up in vm eviction fallback path too
     early"

* tag 'drm-fixes-2023-01-01' of git://anongit.freedesktop.org/drm/drm:
  drm/i915/dsi: fix MIPI_BKLT_EN_1 native GPIO index
  drm/i915/dsi: add support for ICL+ native MIPI GPIO sequence
  drm/i915/uc: Fix two issues with over-size firmware files
  drm/i915: improve the catch-all evict to handle lock contention
  drm/i915: Remove __maybe_unused from mtl_info
  drm/i915: fix TLB invalidation for Gen12.50 video and compute engines
2023-01-01 11:11:13 -08:00
Daniel Vetter a9f5a752e8 - fix TLB invalidation for DG2 and newer platforms. (Andrzej)
- Remove __maybe_unused from mtl_info (Lucas)
 - improve the catch-all evict to handle lock contention (Matt Auld)
 - Fix two issues with over-size (GuC/HuC) firmware files (John)
 - Fix DSI resume issues on ICL+ (Jani)
 -----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCAAdFiEEbSBwaO7dZQkcLOKj+mJfZA7rE8oFAmOutTIACgkQ+mJfZA7r
 E8qZxQgAn6gVCuOUZ4yAEB4KT3wVrJjy9teSpzdSxWlVURcvDPAcng27xJDSc5VG
 1T7/J2NzzoYqHtmC+2CykQM43NnHzT8+ymBdI2GLNGzbY80Fg2Si3hnWAW0gKPaP
 wChdKombCu03vxY928SOOvPagj9djGNyP7ofnGLzZmxckyI6DJ3x5Z8kmj0M+haN
 lS8vKyBX0WMoHW1uviVqVYuetJ8blrGxlekkzgTapsXr3u9In36FnhgdQFAbPsm9
 fPTjkmC13oeOjmONMPxHqfDZNQKy69G58nExrm9X70KVnVu4ZcSJ6YqEYiKekSKS
 0g8XkZy2YdLUR8xqKTshzTavJ2QmZQ==
 =0/dP
 -----END PGP SIGNATURE-----

Merge tag 'drm-intel-fixes-2022-12-30' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- fix TLB invalidation for DG2 and newer platforms. (Andrzej)
- Remove __maybe_unused from mtl_info (Lucas)
- improve the catch-all evict to handle lock contention (Matt Auld)
- Fix two issues with over-size (GuC/HuC) firmware files (John)
- Fix DSI resume issues on ICL+ (Jani)

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Y662ijDHrZCjTFla@intel.com
2023-01-01 11:52:11 +01:00
Linus Torvalds e4cf7c25ba Kbuild fixes for v6.2
- Fix broken BuildID
 
  - Add srcrpm-pkg to the help message
 
  - Fix the option order for modpost built with musl libc
 
  - Fix the build dependency of rpm-pkg for openSUSE
 -----BEGIN PGP SIGNATURE-----
 
 iQJJBAABCgAzFiEEbmPs18K1szRHjPqEPYsBB53g2wYFAmOwNaYVHG1hc2FoaXJv
 eUBrZXJuZWwub3JnAAoJED2LAQed4NsGWHYP/2Z9bU6pCBlzL4JN6ksS8RAEjfAr
 SiNg03Imr3n77b6Pa+dqVFZhiYoa3trqeHnDvz3ldaGEQ7vWmyd0WydGOoudtXD6
 rUij3Z0YyoSPH4kwzNdZwmHXTJaU471P5MBVA63q3nY4I/ihWu18rPXIGTS/sXxK
 wSu126h1HxLf9NJFZoeZPgo5p31M8G8PM6Nxy2YTMyG/ClSaRpccpBiSImZMZiCK
 cMWH92rASl3ZQx49kyZqGLe6Nx1dl5E5mynL/k8rJrdRd5tbt06Pq9MGapQlntwe
 PcRFn0l3PzJ5dADrhpiVXakA0BPpauvNvIiQCAVfT3B7J+cdUftYphEtR3wwNXKI
 b75zQwdeLkPI5Y+e4Jlp5H/gr71ltiW3cST6yBdOoYuYxSFf6VqQjL4G4l7X8sWh
 KxUFv9Y2L3thZdYlY5Arc/iQQoHpS+7XBpRi7P5TC5/mZY7pFwUqawKXIgIGPpPx
 5i9jxClhs+6lgfsO6SZ4TiQnN0OU5AMi+VNG5R7f4RGdVMHztHXdKTPeZOJ9kYrq
 i2j+x6XoVs+MCNosS5OA820C5XM5b4XyOBOp6gcswP9ykViUOhqhGeBBHPNmTuXq
 inqJZe4rwJoX6VrB5dgCxds9kEyXEuaONUhLTpx6mTkF6iSmM2iDYQ88y24BIo9z
 syAga8KipXSMfytu
 =yoFP
 -----END PGP SIGNATURE-----

Merge tag 'kbuild-fixes-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - Fix broken BuildID

 - Add srcrpm-pkg to the help message

 - Fix the option order for modpost built with musl libc

 - Fix the build dependency of rpm-pkg for openSUSE

* tag 'kbuild-fixes-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  fixdep: remove unneeded <stdarg.h> inclusion
  kbuild: sort single-targets alphabetically again
  kbuild: rpm-pkg: add libelf-devel as alternative for BuildRequires
  kbuild: Fix running modpost with musl libc
  kbuild: add a missing line for help message
  .gitignore: ignore *.rpm
  arch: fix broken BuildID for arm64 and riscv
  kconfig: Add static text for search information in help menu
2022-12-31 10:21:47 -08:00
Linus Torvalds e39d9b9f89 ATA fixes for 6.2-rc2
A single fix to address an issue with wake from suspend with PCS
 adapters, from Adam.
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQSRPv8tYSvhwAzJdzjdoc3SxdoYdgUCY6+JYAAKCRDdoc3SxdoY
 dlYQAP0fABQ/yloLqTw11Lw0PNr3X8sVlI+l5QiOArmo9p2wvgEAqMP1bZVKlfp0
 eSL10uDUxxuub69rK1v65wAIm4vp7AE=
 =gsn6
 -----END PGP SIGNATURE-----

Merge tag 'ata-6.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata

Pull ata fix from Damien Le Moal:
 "A single fix to address an issue with wake from suspend with PCS
  adapters, from Adam"

* tag 'ata-6.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
  ata: ahci: Fix PCS quirk application for suspend
2022-12-31 10:01:44 -08:00
Linus Torvalds c8451c141e ACPI fixes for 6.2-rc2
- Add ACPI IRQ override quirks for Asus ExpertBook B2502, Lenovo
    14ALC7, and XMG Core 15 (Hans de Goede, Adrian Freund,  Erik
    Schumacher).
 
  - Adjust ACPI video detection fallback path to prevent non-operational
    ACPI backlight devices from being created on systems where the native
    driver does not detect a suitable panel (Mario Limonciello).
 
  - Fix Apple GMUX backlight detection (Hans de Goede).
 
  - Add a low-power S0 idle (S0ix) handling quirk for HP Elitebook 865
    and stop using AMD-specific low-power S0 idle code path for systems
    with Rembrandt chips and newer (Mario Limonciello).
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAmOvEHkSHHJqd0Byand5
 c29ja2kubmV0AAoJEILEb/54YlRxamEP90CinO50RUcM6foz9G1phgtgTov3Y/M8
 tvA+yymLUHN2UWmtbpLDQp1/xlCTRpZnfouzbkAzlgByMpk5xTmIT8/9gI+EjjPy
 zzT8UIbaXI3EkYXCcTkikx3n6Y5N8l3Un3Ro83cUNMHiU/PjYWvfSG/lNaCiqz2n
 kLuwOtbeOa3S+5VB4D4Lx6Cg6e+Q0zGGV6dXm22dSbjATDsbUelHf+uK3+dU4jc1
 6cLCNrB5W30FGExmh7M9BgbQ/P4GYctUp3YWtXaDYJyl5lRYr0rd09qriLA6vmwd
 gb++i8f3ThyB2ha7Hq61atvWU5F5LuGKMdQTUlbdgtGujFuBchj2Yo9RtdWC0m1/
 qAVh0PnfpjgltHIroYy6+E2sNIanhpHh22LrqcXuVQgEeI7lc9c3OdJHUPJscyhg
 HfDJkuvqvvl7j9gHLsJL5LPvwVEOco3oSrlmFTMBNdzx4Owd5ikhu4M0R6jbGmqQ
 HO56Tne1TryFq8OoyzGTp9EJydfqjUc2TQ9TIq/Qdx2dCkMD9mKDf2AS0rBmXyzA
 FICOYJPSwKKonjPFuAk3ujTLeVll0CZc76DG3ZFqBi3shZP7SAWZjiINdD/WrpyH
 T5f9afOkCkFNO26mtdUOKp5+XuQMTsUYrvrlHp/c+ef37mc1nmkKPjpE81+1Ewqj
 yvEDmlDKw3Q=
 =rSWr
 -----END PGP SIGNATURE-----

Merge tag 'acpi-6.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "These are new ACPI IRQ override quirks, low-power S0 idle (S0ix)
  support adjustments and ACPI backlight handling fixes, mostly for
  platforms using AMD chips.

  Specifics:

   - Add ACPI IRQ override quirks for Asus ExpertBook B2502, Lenovo
     14ALC7, and XMG Core 15 (Hans de Goede, Adrian Freund, Erik
     Schumacher).

   - Adjust ACPI video detection fallback path to prevent
     non-operational ACPI backlight devices from being created on
     systems where the native driver does not detect a suitable panel
     (Mario Limonciello).

   - Fix Apple GMUX backlight detection (Hans de Goede).

   - Add a low-power S0 idle (S0ix) handling quirk for HP Elitebook 865
     and stop using AMD-specific low-power S0 idle code path for systems
     with Rembrandt chips and newer (Mario Limonciello)"

* tag 'acpi-6.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: x86: s2idle: Stop using AMD specific codepath for Rembrandt+
  ACPI: x86: s2idle: Force AMD GUID/_REV 2 on HP Elitebook 865
  ACPI: video: Fix Apple GMUX backlight detection
  ACPI: resource: Add Asus ExpertBook B2502 to Asus quirks
  ACPI: resource: do IRQ override on Lenovo 14ALC7
  ACPI: resource: do IRQ override on XMG Core 15
  ACPI: video: Don't enable fallback path for creating ACPI backlight by default
  drm/amd/display: Report to ACPI video if no panels were found
  ACPI: video: Allow GPU drivers to report no panels
2022-12-30 10:47:25 -08:00
Linus Torvalds 262eef26e3 sound fixes for 6.2-rc2
Just a few small fixes:
 - A regression fix for HDMI audio on HD-audio AMD codecs
 - Fixes for LINE6 MIDI handling
 - HD-audio quirk for Dell laptops
 -----BEGIN PGP SIGNATURE-----
 
 iQJCBAABCAAsFiEEIXTw5fNLNI7mMiVaLtJE4w1nLE8FAmOu9vEOHHRpd2FpQHN1
 c2UuZGUACgkQLtJE4w1nLE9M0w/9HX0lDRiw/SPYayqRGmVgM46PxfAPGMFvRzII
 jmOUcCtu1zdG155IIASAAjAwaqxpGn2rhuq8SlVPAkWD/v/YvSU88AE8u9Oa/jpA
 74pccAULN0xIB8ms0NOAE9myYC18U14V6rfAIORs10uHuETgbXsn6CrlIn/ccHXK
 6ha5+F5TZqPDBggHaBfdRFXkkyrxGW4YQK95bOm0t4YqR4Y0Ff/zeU12dXWJfzyy
 8NE7i/P/ncmcwR8/vHkKMNv79NVABRlYgHbD49i7ArhNHeEMl7aAKQYg4e6KkhHA
 4xi0L8I6N4a2nyIij17CKpSh1I71DuxpmvLxQRV08bHRENcP625qd4/qCkakPHcO
 Yxs6DNHtHXB8jsDCbNayCW01tt9dXc39HI96e37I9pbi25XcmA7s5qbiYqwqWwE0
 g0MPF3alaQU6jOeidRtKjslhBWCFrltP3ziBa6dLhqoIamagOW6AsSFuRbAhjEUN
 e+jvgeVPv/Z2C9eHkBdvKB1+a10gYYzlxMjKkFd8wU5MP9eDgSx8j1gwrxDtZqJR
 sAEGbLmroiCHjqMsLref1oSkKAOcjFo+PfCBvr2myd5NGE7OucnsDhiMegw4pieQ
 3UHRhyjt1U6MlK46iqxvHh8tZLErEd/8+Fe6oVH1VgLXv+hasnaQnUwBXt18un/h
 CW8zyR4=
 =mGy9
 -----END PGP SIGNATURE-----

Merge tag 'sound-6.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Just a few small fixes:

   - A regression fix for HDMI audio on HD-audio AMD codecs

   - Fixes for LINE6 MIDI handling

   - HD-audio quirk for Dell laptops"

* tag 'sound-6.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/hdmi: Static PCM mapping again with AMD HDMI codecs
  ALSA: hda/realtek: Apply dual codec fixup for Dell Latitude laptops
  ALSA: line6: fix stack overflow in line6_midi_transmit
  ALSA: line6: correct midi status byte when receiving data from podxt
2022-12-30 10:30:54 -08:00
Rafael J. Wysocki 0948a9ef1d Merge branches 'acpi-resource' and 'acpi-video'
Merge ACPI resource handling quirks and ACPI backlight handling fixes
for 6.2-rc2:

 - Add ACPI IRQ override quirks for Asus ExpertBook B2502, Lenovo
   14ALC7, and XMG Core 15 (Hans de Goede, Adrian Freund,  Erik
   Schumacher).

 - Adjust ACPI video detection fallback path to prevent non-operational
   ACPI backlight devices from being created on systems where the native
   driver does not detect a suitable panel (Mario Limonciello).

 - Fix Apple GMUX backlight detection (Hans de Goede).

* acpi-resource:
  ACPI: resource: Add Asus ExpertBook B2502 to Asus quirks
  ACPI: resource: do IRQ override on Lenovo 14ALC7
  ACPI: resource: do IRQ override on XMG Core 15

* acpi-video:
  ACPI: video: Fix Apple GMUX backlight detection
  ACPI: video: Don't enable fallback path for creating ACPI backlight by default
  drm/amd/display: Report to ACPI video if no panels were found
  ACPI: video: Allow GPU drivers to report no panels
2022-12-30 16:59:10 +01:00
Jani Nikula 6217e9f05a drm/i915/dsi: fix MIPI_BKLT_EN_1 native GPIO index
Due to copy-paste fail, MIPI_BKLT_EN_1 would always use PPS index 1,
never 0. Fix the sloppiest commit in recent memory.

Fixes: 963bbdb32b ("drm/i915/dsi: add support for ICL+ native MIPI GPIO sequence")
Reported-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221220140105.313333-1-jani.nikula@intel.com
(cherry picked from commit a561933c57)
Cc: stable@vger.kernel.org # 6.1
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2022-12-30 04:28:46 -05:00
Jani Nikula 963bbdb32b drm/i915/dsi: add support for ICL+ native MIPI GPIO sequence
Starting from ICL, the default for MIPI GPIO sequences seems to be using
native GPIOs i.e. GPIOs available in the GPU. These native GPIOs reuse
many pins that quite frankly seem scary to poke based on the VBT
sequences. We pretty much have to trust that the board is configured
such that the relevant HPD, PP_CONTROL and GPIO bits aren't used for
anything else.

MIPI sequence v4 also adds a flag to fall back to non-native sequences.

v5:
- Wrap SHOTPLUG_CTL_DDI modification in spin_lock() in icp_irq_handler()
  too (Ville)
- References instead of Closes issue 6131 because this does not fix everything

v4:
- Wrap SHOTPLUG_CTL_DDI modification in spin_lock_irq() (Ville)

v3:
- Fix -Wbitwise-conditional-parentheses (kernel test robot <lkp@intel.com>)

v2:
- Fix HPD pin output set (impacts GPIOs 0 and 5)
- Fix GPIO data output direction set (impacts GPIOs 4 and 9)
- Reduce register accesses to single intel_de_rwm()

References: https://gitlab.freedesktop.org/drm/intel/-/issues/6131
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221219105955.4014451-1-jani.nikula@intel.com
(cherry picked from commit f087cfe6fc)
Cc: stable@vger.kernel.org # 6.1
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2022-12-30 04:27:04 -05:00
Masahiro Yamada 6a5e25fc3e fixdep: remove unneeded <stdarg.h> inclusion
This is unneeded since commit 69304379ff ("fixdep: use fflush() and
ferror() to ensure successful write to files").

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2022-12-30 17:26:19 +09:00
Masahiro Yamada aa4847dbcd kbuild: sort single-targets alphabetically again
This was previously alphabetically sorted. Sort it again.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
2022-12-30 17:24:59 +09:00
Masahiro Yamada 02a893bc99 kbuild: rpm-pkg: add libelf-devel as alternative for BuildRequires
Guoqing Jiang reports that openSUSE cannot compile the kernel rpm due
to "BuildRequires: elfutils-libelf-devel" added by commit 8818039f95
("kbuild: add ability to make source rpm buildable using koji").
The relevant package name in openSUSE is libelf-devel.

Add it as an alternative package.

BTW, if it is impossible to solve the build requirement, the final
resort would be:

    $ make RPMOPTS=--nodeps rpm-pkg

This passes --nodeps to the rpmbuild command so it will not verify
build dependencies. This is useful to test rpm builds on non-rpm
system. On Debian/Ubuntu, for example, you can install rpmbuild by
'apt-get install rpm'.

NOTE1:
  Likewise, it is possible to bypass the build dependency check for
  debian package builds:

    $ make DPKG_FLAGS=-d deb-pkg

NOTE2:
  The 'or' operator is supported since RPM 4.13. So, old distros such
  as CentOS 7 will break. I suggest installing newer rpmbuild in such
  cases.

Link: https://lore.kernel.org/linux-kbuild/ee227d24-9c94-bfa3-166a-4ee6b5dfea09@linux.dev/T/#u
Fixes: 8818039f95 ("kbuild: add ability to make source rpm buildable using koji")
Reported-by: Guoqing Jiang <guoqing.jiang@linux.dev>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Guoqing Jiang <guoqing.jiang@linux.dev>
Acked-by: Jonathan Toppins <jtoppins@redhat.com>
2022-12-30 17:24:49 +09:00
Samuel Holland 63ffe00d8c kbuild: Fix running modpost with musl libc
commit 3d57e1b7b1 ("kbuild: refactor the prerequisites of the modpost
rule") moved 'vmlinux.o' inside modpost-args, possibly before some of
the other options. However, getopt() in musl libc follows POSIX and
stops looking for options upon reaching the first non-option argument.
As a result, the '-T' option is misinterpreted as a positional argument,
and the build fails:

  make -f ./scripts/Makefile.modpost
     scripts/mod/modpost   -E   -o Module.symvers vmlinux.o -T modules.order
  -T: No such file or directory
  make[1]: *** [scripts/Makefile.modpost:137: Module.symvers] Error 1
  make: *** [Makefile:1960: modpost] Error 2

The fix is to move all options before 'vmlinux.o' in modpost-args.

Fixes: 3d57e1b7b1 ("kbuild: refactor the prerequisites of the modpost rule")
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2022-12-30 17:22:14 +09:00
Jun ASAKA 9c9b55a594 kbuild: add a missing line for help message
The help message line for building the source RPM package was missing.
Added it.

Signed-off-by: Jun ASAKA <JunASAKA@zzy040330.moe>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2022-12-30 17:22:14 +09:00
Masahiro Yamada 924d28b39e .gitignore: ignore *.rpm
Previously, *.rpm files were created under $HOME/rpmbuild/, but since
commit 8818039f95 ("kbuild: add ability to make source rpm buildable
using koji"), srcrpm-pkg creates the source rpm in the kernel tree
because it sets '_srcrpmdir'.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2022-12-30 17:22:14 +09:00
Masahiro Yamada 99cb0d917f arch: fix broken BuildID for arm64 and riscv
Dennis Gilmore reports that the BuildID is missing in the arm64 vmlinux
since commit 994b7ac169 ("arm64: remove special treatment for the
link order of head.o").

The issue is that the type of .notes section, which contains the BuildID,
changed from NOTES to PROGBITS.

Ard Biesheuvel figured out that whichever object gets linked first gets
to decide the type of a section. The PROGBITS type is the result of the
compiler emitting .note.GNU-stack as PROGBITS rather than NOTE.

While Ard provided a fix for arm64, I want to fix this globally because
the same issue is happening on riscv since commit 2348e6bf44 ("riscv:
remove special treatment for the link order of head.o"). This problem
will happen in general for other architectures if they start to drop
unneeded entries from scripts/head-object-list.txt.

Discard .note.GNU-stack in include/asm-generic/vmlinux.lds.h.

Link: https://lore.kernel.org/lkml/CAABkxwuQoz1CTbyb57n0ZX65eSYiTonFCU8-LCQc=74D=xE=rA@mail.gmail.com/
Fixes: 994b7ac169 ("arm64: remove special treatment for the link order of head.o")
Fixes: 2348e6bf44 ("riscv: remove special treatment for the link order of head.o")
Reported-by: Dennis Gilmore <dennis@ausil.us>
Suggested-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-12-30 17:21:51 +09:00
John Harrison 11ce8fd8fd drm/i915/uc: Fix two issues with over-size firmware files
In the case where a firmware file is too large (e.g. someone
downloaded a web page ASCII dump from github...), the firmware object
is released but the pointer is not zerod. If no other firmware file
was found then release would be called again leading to a double kfree.

Also, the size check was only being applied to the initial firmware
load not any of the subsequent attempts. So move the check into a
wrapper that is used for all loads.

Fixes: 016241168d ("drm/i915/uc: use different ggtt pin offsets for uc loads")
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Alan Previn <alan.previn.teres.alexis@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: "Thomas Hellström" <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221221193031.687266-4-John.C.Harrison@Intel.com
(cherry picked from commit 4071d98b29)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2022-12-30 03:04:45 -05:00
Matthew Auld 3f882f2d4f drm/i915: improve the catch-all evict to handle lock contention
The catch-all evict can fail due to object lock contention, since it
only goes as far as trylocking the object, due to us already holding the
vm->mutex. Doing a full object lock here can deadlock, since the
vm->mutex is always our inner lock. Add another execbuf pass which drops
the vm->mutex and then tries to grab the object will the full lock,
before then retrying the eviction. This should be good enough for now to
fix the immediate regression with userspace seeing -ENOSPC from execbuf
due to contended object locks during GTT eviction.

v2 (Mani)
  - Also revamp the docs for the different passes.

Testcase: igt@gem_ppgtt@shrink-vs-evict-*
Fixes: 7e00897be8 ("drm/i915: Add object locking to i915_gem_evict_for_node and i915_gem_evict_something, v2.")
References: https://gitlab.freedesktop.org/drm/intel/-/issues/7627
References: https://gitlab.freedesktop.org/drm/intel/-/issues/7570
References: https://bugzilla.mozilla.org/show_bug.cgi?id=1779558
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Cc: Mani Milani <mani@chromium.org>
Cc: <stable@vger.kernel.org> # v5.18+
Reviewed-by: Mani Milani <mani@chromium.org>
Tested-by: Mani Milani <mani@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221216113456.414183-1-matthew.auld@intel.com
(cherry picked from commit 801fa7a81f)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2022-12-30 03:04:39 -05:00
Lucas De Marchi fff7586988 drm/i915: Remove __maybe_unused from mtl_info
The attribute __maybe_unused should remain only until the respective
info is not in the pciidlist. The info can't be added together
with its definition because that would cause the driver to automatically
probe for the device, while it's still not ready for that. However once
pciidlist contains it, the attribute can be removed.

Fixes: 7835303982 ("drm/i915/mtl: Add MeteorLake PCI IDs")
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221214194944.3670344-1-lucas.demarchi@intel.com
(cherry picked from commit 50490ce05b)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2022-12-30 03:04:36 -05:00
Andrzej Hajda c5bc073668 drm/i915: fix TLB invalidation for Gen12.50 video and compute engines
In case of Gen12.50 video and compute engines, TLB_INV registers are
masked - to modify one bit, corresponding bit in upper half of the register
must be enabled, otherwise nothing happens.

Fixes: 77fa9efc16 ("drm/i915/xehp: Create separate reg definitions for new MCR registers")
Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221214075439.402485-1-andrzej.hajda@intel.com
(cherry picked from commit 4d5cf7b168)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2022-12-30 03:04:32 -05:00
Linus Torvalds bff687b3da block-6.2-2022-12-29
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAmOt35IQHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgpq4QD/9nGWlCdLRLyyiysUWhLwTmsZt7PSebG3KD
 CmCyEt+o8n2PdxBe7Xq8glppvuQTwJwOYynMXcAWd0IBxYUnAkCDF4PTbmdiIiVY
 fzci1UydIXw/HOVft/2IbIC0+Apo+UJ9WVqqhwm7ya0lAkLQYuT7iWmn1pxFdbcI
 hi9ZbaghxtZXSQP4ZtKG+a8tQ99HTsf76xqCM6DdMCVOUH6/V1f5g67iSkYLCL3Q
 V9bAq7U2VEXFdRC9m5yPG7KGUBRllE4etBvVAIIcAQBAgEktyvgvas5luwu5j+W0
 R2z8KXp2X4BWGW+R45hpt2cdyfcJy24+6QnAGNQAs/3Muq1IfEMwmJ5tyR/y8HiS
 0RvIv/BOwDMDOaM9YuW0beyHQMu+bwhtf+C453r1gsKmnL912+ElMzuqUpditkjr
 d4nL5aUTk5iM38jzJpQylZSY+20wyUnOmxCxETpeSMaRrYY75PLOVCJLNncJuZtQ
 GFtqUzMPVURLMGnxyJZLiG+qbGVXh9f7B7OStKDPhBJvqoZ2cQpwTzywmYxQOv+0
 OO1DdmMDtUWNpuBN2U4HOzLElmB034OM3Fcia529IhLoXK/x57n9mXW0D0HeOd84
 /EYSsmsT+spv7psKBNjhXkZwgVpVgsYOu8eUjRKYUmrYLEbTk+fGUtia3rBd4wjl
 uNMuRhRtUA==
 =cqhz
 -----END PGP SIGNATURE-----

Merge tag 'block-6.2-2022-12-29' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:
 "Mostly just NVMe, but also a single fixup for BFQ for a regression
  that happened during the merge window. In detail:

   - NVMe pull requests via Christoph:
      - Fix doorbell buffer value endianness (Klaus Jensen)
      - Fix Linux vs NVMe page size mismatch (Keith Busch)
      - Fix a potential use memory access beyong the allocation limit
        (Keith Busch)
      - Fix a multipath vs blktrace NULL pointer dereference (Yanjun
        Zhang)
      - Fix various problems in handling the Command Supported and
        Effects log (Christoph Hellwig)
      - Don't allow unprivileged passthrough of commands that don't
        transfer data but modify logical block content (Christoph
        Hellwig)
      - Add a features and quirks policy document (Christoph Hellwig)
      - Fix some really nasty code that was correct but made smatch
        complain (Sagi Grimberg)

   - Use-after-free regression in BFQ from this merge window (Yu)"

* tag 'block-6.2-2022-12-29' of git://git.kernel.dk/linux:
  nvme-auth: fix smatch warning complaints
  nvme: consult the CSE log page for unprivileged passthrough
  nvme: also return I/O command effects from nvme_command_effects
  nvmet: don't defer passthrough commands with trivial effects to the workqueue
  nvmet: set the LBCC bit for commands that modify data
  nvmet: use NVME_CMD_EFFECTS_CSUPP instead of open coding it
  nvme: fix the NVME_CMD_EFFECTS_CSE_MASK definition
  docs, nvme: add a feature and quirk policy document
  nvme-pci: update sqsize when adjusting the queue depth
  nvme: fix setting the queue depth in nvme_alloc_io_tag_set
  block, bfq: fix uaf for bfqq in bfq_exit_icq_bfqq
  nvme: fix multipath crash caused by flush request when blktrace is enabled
  nvme-pci: fix page size checks
  nvme-pci: fix mempool alloc size
  nvme-pci: fix doorbell buffer value endianness
2022-12-29 16:57:29 -08:00
Linus Torvalds ac787ffa5a io_uring-6.2-2022-12-29
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAmOt37UQHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgpouKEACDwViycFQjYhITw6ENTvJMfAAY7TU1p8Di
 widhpRYUYQxuVJHdfyvOs/NTWMzj7okfsjilVLapq+v8jyNc+9TAMmbOJhYTydP0
 7MXCt8hRP304zKil0EsPR+U6WT1n8H8Jf5fxqduyYG3tfrB1ao+EMEyEZVKiufGj
 x78BOYfDQqtnbMNsxnUDfjl0zJP0tAjHYOncW09u/43Y/3XeOqdT1/fCGqO0N0Fn
 RnnnKtCRiZVSnnImTGqVHPkUKSL4FRCmChI8k42cYirP6rtjaWP/zmHyTAYs1ww0
 DHeq2n8MnRC156WpIAMGWoSv9G4YMpsnIfVH1JeAgp3FOErngLTX6+eMgcYITfJG
 BfcqxmqDdLSuJJp6uSZo14j5eIRDtxFryuPLLhuWfegc1FY7Ls1d+uaibOg9NMh3
 aYH/ij/VKzNhtdCh59mUeV/nrs6tXnsYpw1GMzNpriH3P9YeuYR2h3LdAiAAUHcC
 Z1/OtwThxWyKC4qEJPvQCqrJViDtLd5wEZDMicPu7HMKpYiypFiGlzA6sraHRKHp
 Bz/VnBFTWN+YqlJORKJPoDYbjMHd8gHzkbLV0dSjVOqHAw5S385YL7u8x8pPWD0f
 GSz96Nxi6UpRrW9zIcgFOrBleyYtr9Ip2r/6F6cXdDxONFOwtObB3Wrxhc7+Vwgh
 uNfRVUL6WQ==
 =SQf6
 -----END PGP SIGNATURE-----

Merge tag 'io_uring-6.2-2022-12-29' of git://git.kernel.dk/linux

Pull io_uring fixes from Jens Axboe:

 - Two fixes for mutex grabbing when the task state is != TASK_RUNNING
   (me)

 - Check for invalid opcode in io_uring_register() a bit earlier, to
   avoid going through the quiesce machinery just to return -EINVAL
   later in the process (me)

 - Fix for the uapi io_uring header, skipping including time_types.h
   when necessary (Stefan)

* tag 'io_uring-6.2-2022-12-29' of git://git.kernel.dk/linux:
  uapi:io_uring.h: allow linux/time_types.h to be skipped
  io_uring: check for valid register opcode earlier
  io_uring/cancel: re-grab ctx mutex after finishing wait
  io_uring: finish waiting before flushing overflow entries
2022-12-29 16:48:21 -08:00
Linus Torvalds 69fb073b5b linux-kselftest-kunit-fixes-6.2-rc2
This KUnit update for Linux 6.2-rc2 consists of:
 
 - alloc_string_stream_fragment() error path fix to free before
   returning a failure.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAmOuGzAACgkQCwJExA0N
 Qxy8+A//aH8ZM9bDIDu6M6J1CZ+KGFfVg3sB8hYiAOPWK5CR/FhWmEWm4MvQyBkU
 m+2nljQKhprDmfgs6ndIwFbSugaEXdUyX9rj3CCuVkycTbudawlnpb9IrO9mLXtc
 8+C2xhrhCGKtx6cRY3nC5WjzOQ6p86TSBYV5PQOHyJD+YEeZf7nmhu+kTKqQd3fH
 BwVDFRbNOMvl6VMD250gleRP47jBfhenNAjyLb8FAICPnanJUQwoYBNl3xP3IBb4
 UqnUOYEUkwmDrxnKjHuQt87QOX7ZMVWYqkhYyXKvw4SccBRDp9Cu+id9obgUCi7F
 d3RmyeIomOvCQogqEplZo/Kx/QEoe7seL7N0StSxjfJHUT/5jFoKonUmkgIje+0E
 MWJLBM8MFpLqo8OGuejcDoguYqTorXzDSQiraQSkPNga4gNrRKYm+iw/n44+cNqp
 a5Oqx2ef9GdpaPveKsqbXcX/F3NowTNU00NpuPPPBAeL72dhyVYKLp/t1r13aeKA
 vA8bK2mbQPuX3bDg3BWj24Ij+ifJIl6aPXMd/xj3Q9fCH25N33aYkRgPr6J+BFMZ
 qxWpinMqbtLM51ngNRjbXYIB9bEozPnfBI5nTgOvgSaJ0hFZbGjAGpQWVSQhurmM
 33kw9Sjlbhu6/ULGROenho9W8Z9sUelkePVJr0hgEELtKNYFBKE=
 =9TXp
 -----END PGP SIGNATURE-----

Merge tag 'linux-kselftest-kunit-fixes-6.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull KUnit fix from Shuah Khan:

 - alloc_string_stream_fragment() error path fix to free before
   returning a failure.

* tag 'linux-kselftest-kunit-fixes-6.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  kunit: alloc_string_stream_fragment error handling bug fix
2022-12-29 16:43:25 -08:00
Linus Torvalds 2258c2dc85 Changes that were posted too late for 6.1, or after the release.
x86:
 
 * several fixes to nested VMX execution controls
 
 * fixes and clarification to the documentation for Xen emulation
 
 * do not unnecessarily release a pmu event with zero period
 
 * MMU fixes
 
 * fix Coverity warning in kvm_hv_flush_tlb()
 
 selftests:
 
 * fixes for the ucall mechanism in selftests
 
 * other fixes mostly related to compilation with clang
 -----BEGIN PGP SIGNATURE-----
 
 iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmOsNPcUHHBib256aW5p
 QHJlZGhhdC5jb20ACgkQv/vSX3jHroOqWQf/dpeSMJtxAL74mvHBMNq4z/KGF9+P
 OBVetFCfgieMyjPc956k8ZxPcczd6sInKPboWRXjd/FtdTB++LTP+kAJ6TH6q1RK
 IaWWMQ06oF3KFVrufzduK9YvuIcdJfGBOWrrEOLm+TkmrPtcEhj+UOma3sjgLECs
 gXRHC3/ETYZqugB1XS1HGSj7+dtx0aKMvVwPQCl+/MGgTAfvOtRPIxRdE5CzRNL9
 ZFW1aOW3d8XKTLrww8ZJlQg3fHrsOTv6ZsNolR/sOdHOB4oRMEvroy2IkOXqnnK9
 zjjSKI1S60FSZtPwgsBdgNt+AJZAOfOrfIY7u1fHYAZUInBVD/H7NC8DRQ==
 =ivgk
 -----END PGP SIGNATURE-----

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

Pull kvm fixes from Paolo Bonzini:
 "Changes that were posted too late for 6.1, or after the release.

  x86:

   - several fixes to nested VMX execution controls

   - fixes and clarification to the documentation for Xen emulation

   - do not unnecessarily release a pmu event with zero period

   - MMU fixes

   - fix Coverity warning in kvm_hv_flush_tlb()

  selftests:

   - fixes for the ucall mechanism in selftests

   - other fixes mostly related to compilation with clang"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (41 commits)
  KVM: selftests: restore special vmmcall code layout needed by the harness
  Documentation: kvm: clarify SRCU locking order
  KVM: x86: fix deadlock for KVM_XEN_EVTCHN_RESET
  KVM: x86/xen: Documentation updates and clarifications
  KVM: x86/xen: Add KVM_XEN_INVALID_GPA and KVM_XEN_INVALID_GFN to uapi
  KVM: x86/xen: Simplify eventfd IOCTLs
  KVM: x86/xen: Fix SRCU/RCU usage in readers of evtchn_ports
  KVM: x86/xen: Use kvm_read_guest_virt() instead of open-coding it badly
  KVM: x86/xen: Fix memory leak in kvm_xen_write_hypercall_page()
  KVM: Delete extra block of "};" in the KVM API documentation
  kvm: x86/mmu: Remove duplicated "be split" in spte.h
  kvm: Remove the unused macro KVM_MMU_READ_{,UN}LOCK()
  MAINTAINERS: adjust entry after renaming the vmx hyperv files
  KVM: selftests: Mark correct page as mapped in virt_map()
  KVM: arm64: selftests: Don't identity map the ucall MMIO hole
  KVM: selftests: document the default implementation of vm_vaddr_populate_bitmap
  KVM: selftests: Use magic value to signal ucall_alloc() failure
  KVM: selftests: Disable "gnu-variable-sized-type-not-at-end" warning
  KVM: selftests: Include lib.mk before consuming $(CC)
  KVM: selftests: Explicitly disable builtins for mem*() overrides
  ...
2022-12-29 10:56:13 -08:00
Jens Axboe 1551ed5a17 nvme fixes for Linux 6.2
- fix various problems in handling the Command Supported and Effects log
    (Christoph Hellwig)
  - don't allow unprivileged passthrough of commands that don't transfer
    data but modify logical block content (Christoph Hellwig)
  - add a features and quirks policy document (Christoph Hellwig)
  - fix some really nasty code that was correct but made smatch complain
    (Sagi Grimberg)
 -----BEGIN PGP SIGNATURE-----
 
 iQI/BAABCgApFiEEgdbnc3r/njty3Iq9D55TZVIEUYMFAmOtwsoLHGhjaEBsc3Qu
 ZGUACgkQD55TZVIEUYOgrA//Tj7LXIaVwmo5TiPWnOnyrnZ40SoNpggGFSisF5XX
 A6AgLQVelKBr+HrNwZNXLNDffoGbMAfUTfE0yDBu+gckQAtrmOZCbA2oBOvTpdKB
 RJuisEMGGWy+VzVh/ddylSxvG0qQf8hwJI8eYgGNelIfa3qvICkDD4CfrKIEXJHj
 zn5qUqYcvurg3p1R386h8SoQF6+NdyudmpayJ848rE5qbJ+7yLtGUhZnGmrFB4vZ
 dSH6ccDWsp4mO4sOUGxUnGYRVQSCXp6mGLWyqBZN73PuYMn2c9h/onqCxq8Tp/tT
 VopaymCkVdXIaSGvvwv6lwbOEjeVL2zD9tDYf64xsWtENiQBiAJmON+zrzTy5ETe
 AQ8Pzbu1FlkUaZomJ57/ekgXvvt2EdUS92KgSwLm5o/M1zguC/96YeP32n6c84yS
 ciNNkcYqCihlB4VAjRNLckJOvfTd5Ejc/NPDn3rLR7u55YBPW9x5wk3eCuY7PRji
 H+B4hasGKWOioQL8OtYUnH7NcUaDIsxglvUsSbxkJ0WnaDFhixqMUGIVng8MPdhD
 wPUEauCU5ue3HnD3YfNbalNAVfP8phuTI752OMBiCj+nYU40gb+S72huTAkpxzA2
 nE4Htz68bcV35EuWgiOXQ+gAZgYQeWfAdcpNdZisClOK5N2hQ9uXW88pTCWyUbAX
 NkE=
 =RX6Q
 -----END PGP SIGNATURE-----

Merge tag 'nvme-6.2-2022-12-29' of git://git.infradead.org/nvme into block-6.2

Pull NVMe fixes from Christoph:

"nvme fixes for Linux 6.2

 - fix various problems in handling the Command Supported and Effects log
   (Christoph Hellwig)
 - don't allow unprivileged passthrough of commands that don't transfer
   data but modify logical block content (Christoph Hellwig)
 - add a features and quirks policy document (Christoph Hellwig)
 - fix some really nasty code that was correct but made smatch complain
   (Sagi Grimberg)"

* tag 'nvme-6.2-2022-12-29' of git://git.infradead.org/nvme:
  nvme-auth: fix smatch warning complaints
  nvme: consult the CSE log page for unprivileged passthrough
  nvme: also return I/O command effects from nvme_command_effects
  nvmet: don't defer passthrough commands with trivial effects to the workqueue
  nvmet: set the LBCC bit for commands that modify data
  nvmet: use NVME_CMD_EFFECTS_CSUPP instead of open coding it
  nvme: fix the NVME_CMD_EFFECTS_CSE_MASK definition
  docs, nvme: add a feature and quirk policy document
2022-12-29 11:31:45 -07:00
Bhaskar Chowdhury da8daff940 kconfig: Add static text for search information in help menu
Add few static text to explain how one can bring up the search dialog
box by pressing the forward slash key anywhere on this interface.

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2022-12-29 12:00:07 +09:00
Sagi Grimberg 76807fcd73 nvme-auth: fix smatch warning complaints
When initializing auth context, there may be no secrets passed
by the user. Make return code explicit when returning successfully.

smatch warnings:
drivers/nvme/host/auth.c:950 nvme_auth_init_ctrl() warn: missing error code? 'ret'

Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2022-12-28 06:26:35 -10:00
Christoph Hellwig 6f99ac04c4 nvme: consult the CSE log page for unprivileged passthrough
Commands like Write Zeros can change the contents of a namespaces without
actually transferring data.  To protect against this, check the Commands
Supported and Effects log is supported by the controller for any
unprivileg command passthrough and refuse unprivileged passthrough if the
command has any effects that can change data or metadata.

Note: While the Commands Support and Effects log page has only been
mandatory since NVMe 2.0, it is widely supported because Windows requires
it for any command passthrough from userspace.

Fixes: e4fbcf32c8 ("nvme: identify-namespace without CAP_SYS_ADMIN")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
2022-12-28 06:26:31 -10:00
Christoph Hellwig 831ed60c2a nvme: also return I/O command effects from nvme_command_effects
To be able to use the Commands Supported and Effects Log for allowing
unprivileged passtrough, it needs to be corretly reported for I/O
commands as well.  Return the I/O command effects from
nvme_command_effects, and also add a default list of effects for the
NVM command set.  For other command sets, the Commands Supported and
Effects log is required to be present already.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
2022-12-28 06:26:25 -10:00
Christoph Hellwig 2a459f6933 nvmet: don't defer passthrough commands with trivial effects to the workqueue
Mask out the "Command Supported" and "Logical Block Content Change" bits
and only defer execution of commands that have non-trivial effects to
the workqueue for synchronous execution.  This allows to execute admin
commands asynchronously on controllers that provide a Command Supported
and Effects log page, and will keep allowing to execute Write commands
asynchronously once command effects on I/O commands are taken into
account.

Fixes: c1fef73f79 ("nvmet: add passthru code to process commands")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
2022-12-28 06:26:18 -10:00
Christoph Hellwig f2d1421391 nvmet: set the LBCC bit for commands that modify data
Write, Write Zeroes, Zone append and a Zone Reset through
Zone Management Send modify the logical block content of a namespace,
so make sure the LBCC bit is reported for them.

Fixes: b5d0b38c0475 ("nvmet: add Command Set Identifier support")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
2022-12-28 06:26:13 -10:00
Christoph Hellwig 61f37154c5 nvmet: use NVME_CMD_EFFECTS_CSUPP instead of open coding it
Use NVME_CMD_EFFECTS_CSUPP instead of open coding it and assign a
single value to multiple array entries instead of repeated assignments.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
2022-12-28 06:26:08 -10:00
Christoph Hellwig 685e631163 nvme: fix the NVME_CMD_EFFECTS_CSE_MASK definition
3 << 16 does not generate the correct mask for bits 16, 17 and 18.
Use the GENMASK macro to generate the correct mask instead.

Fixes: 84fef62d13 ("nvme: check admin passthru command effects")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
2022-12-28 06:25:55 -10:00
Christoph Hellwig 8ca4fc323d docs, nvme: add a feature and quirk policy document
This adds a document about what specification features are supported by
the Linux NVMe driver, and what qualifies for a quirk if an implementation
has problems following the specification.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
2022-12-28 05:37:12 -10:00
Takashi Iwai 090ddad4c7 ALSA: hda/hdmi: Static PCM mapping again with AMD HDMI codecs
The recent code refactoring for HD-audio HDMI codec driver caused a
regression on AMD/ATI HDMI codecs; namely, PulseAudioand pipewire
don't recognize HDMI outputs any longer while the direct output via
ALSA raw access still works.

The problem turned out that, after the code refactoring, the driver
assumes only the dynamic PCM assignment, and when a PCM stream that
still isn't assigned to any pin gets opened, the driver tries to
assign any free converter to the PCM stream.  This behavior is OK for
Intel and other codecs, as they have arbitrary connections between
pins and converters.  OTOH, on AMD chips that have a 1:1 mapping
between pins and converters, this may end up with blocking the open of
the next PCM stream for the pin that is tied with the formerly taken
converter.

Also, with the code refactoring, more PCM streams are exposed than
necessary as we assume all converters can be used, while this isn't
true for AMD case.  This may change the PCM stream assignment and
confuse users as well.

This patch fixes those problems by:

- Introducing a flag spec->static_pcm_mapping, and if it's set, the
  driver applies the static mapping between pins and converters at the
  probe time
- Limiting the number of PCM streams per pins, too; this avoids the
  superfluous PCM streams

Fixes: ef6f5494fa ("ALSA: hda/hdmi: Use only dynamic PCM device allocation")
Cc: <stable@vger.kernel.org>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216836
Co-developed-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20221228125714.16329-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-12-28 14:05:06 +01:00
Paolo Bonzini a5496886eb Merge branch 'kvm-late-6.1-fixes' into HEAD
x86:

* several fixes to nested VMX execution controls

* fixes and clarification to the documentation for Xen emulation

* do not unnecessarily release a pmu event with zero period

* MMU fixes

* fix Coverity warning in kvm_hv_flush_tlb()

selftests:

* fixes for the ucall mechanism in selftests

* other fixes mostly related to compilation with clang
2022-12-28 07:19:14 -05:00
Paolo Bonzini 129c48cde6 KVM: selftests: restore special vmmcall code layout needed by the harness
Commit 8fda37cf3d ("KVM: selftests: Stuff RAX/RCX with 'safe' values
in vmmcall()/vmcall()", 2022-11-21) broke the svm_nested_soft_inject_test
because it placed a "pop rbp" instruction after vmmcall.  While this is
correct and mimics what is done in the VMX case, this particular test
expects a ud2 instruction right after the vmmcall, so that it can skip
over it in the L1 part of the test.

Inline a suitably-modified version of vmmcall() to restore the
functionality of the test.

Fixes: 8fda37cf3d ("KVM: selftests: Stuff RAX/RCX with 'safe' values in vmmcall()/vmcall()"
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20221130181147.9911-1-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-12-28 07:18:01 -05:00
Paolo Bonzini 02d9a04da4 Documentation: kvm: clarify SRCU locking order
Currently only the locking order of SRCU vs kvm->slots_arch_lock
and kvm->slots_lock is documented.  Extend this to kvm->lock
since Xen emulation got it terribly wrong.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-12-28 06:02:54 -05:00
Paolo Bonzini a79b53aaaa KVM: x86: fix deadlock for KVM_XEN_EVTCHN_RESET
While KVM_XEN_EVTCHN_RESET is usually called with no vCPUs running,
if that happened it could cause a deadlock.  This is due to
kvm_xen_eventfd_reset() doing a synchronize_srcu() inside
a kvm->lock critical section.

To avoid this, first collect all the evtchnfd objects in an
array and free all of them once the kvm->lock critical section
is over and th SRCU grace period has expired.

Reported-by: Michal Luczaj <mhal@rbox.co>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-12-28 05:53:57 -05:00
Stefan Metzmacher 9eb803402a uapi:io_uring.h: allow linux/time_types.h to be skipped
include/uapi/linux/io_uring.h is synced 1:1 into
liburing:src/include/liburing/io_uring.h.

liburing has a configure check to detect the need for
linux/time_types.h. It can opt-out by defining
UAPI_LINUX_IO_URING_H_SKIP_LINUX_TIME_TYPES_H

Fixes: 78a861b949 ("io_uring: add sync cancelation API through io_uring_register()")
Link: https://github.com/axboe/liburing/issues/708
Link: https://github.com/axboe/liburing/pull/709
Link: https://lore.kernel.org/io-uring/20221115212614.1308132-1-ammar.faizi@intel.com/T/#m9f5dd571cd4f6a5dee84452dbbca3b92ba7a4091
CC: Jens Axboe <axboe@kernel.dk>
Cc: Ammar Faizi <ammarfaizi2@gnuweeb.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ammar Faizi <ammarfaizi2@gnuweeb.org>
Link: https://lore.kernel.org/r/7071a0a1d751221538b20b63f9160094fc7e06f4.1668630247.git.metze@samba.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-12-27 07:32:51 -07:00
Mathieu Desnoyers 94cd8fa09f futex: Fix futex_waitv() hrtimer debug object leak on kcalloc error
In a scenario where kcalloc() fails to allocate memory, the futex_waitv
system call immediately returns -ENOMEM without invoking
destroy_hrtimer_on_stack(). When CONFIG_DEBUG_OBJECTS_TIMERS=y, this
results in leaking a timer debug object.

Fixes: bf69bad38c ("futex: Implement sys_futex_waitv()")
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
Cc: stable@vger.kernel.org
Cc: stable@vger.kernel.org # v5.16+
Link: https://lore.kernel.org/r/20221214222008.200393-1-mathieu.desnoyers@efficios.com
2022-12-27 12:52:02 +01:00
Masami Hiramatsu (Google) 63dc6325ff x86/kprobes: Fix optprobe optimization check with CONFIG_RETHUNK
Since the CONFIG_RETHUNK and CONFIG_SLS will use INT3 for stopping
speculative execution after function return, kprobe jump optimization
always fails on the functions with such INT3 inside the function body.
(It already checks the INT3 padding between functions, but not inside
 the function)

To avoid this issue, as same as kprobes, check whether the INT3 comes
from kgdb or not, and if so, stop decoding and make it fail. The other
INT3 will come from CONFIG_RETHUNK/CONFIG_SLS and those can be
treated as a one-byte instruction.

Fixes: e463a09af2 ("x86: Add straight-line-speculation mitigation")
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/167146051929.1374301.7419382929328081706.stgit@devnote3
2022-12-27 12:51:58 +01:00
Masami Hiramatsu (Google) 1993bf9799 x86/kprobes: Fix kprobes instruction boudary check with CONFIG_RETHUNK
Since the CONFIG_RETHUNK and CONFIG_SLS will use INT3 for stopping
speculative execution after RET instruction, kprobes always failes to
check the probed instruction boundary by decoding the function body if
the probed address is after such sequence. (Note that some conditional
code blocks will be placed after function return, if compiler decides
it is not on the hot path.)

This is because kprobes expects kgdb puts the INT3 as a software
breakpoint and it will replace the original instruction.
But these INT3 are not such purpose, it doesn't need to recover the
original instruction.

To avoid this issue, kprobes checks whether the INT3 is owned by
kgdb or not, and if so, stop decoding and make it fail. The other
INT3 will come from CONFIG_RETHUNK/CONFIG_SLS and those can be
treated as a one-byte instruction.

Fixes: e463a09af2 ("x86: Add straight-line-speculation mitigation")
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/167146051026.1374301.392728975473572291.stgit@devnote3
2022-12-27 12:51:58 +01:00
Arnd Bergmann ade8c20847 x86/calldepth: Fix incorrect init section references
The addition of callthunks_translate_call_dest means that
skip_addr() and patch_dest() can no longer be discarded
as part of the __init section freeing:

WARNING: modpost: vmlinux.o: section mismatch in reference: callthunks_translate_call_dest.cold (section: .text.unlikely) -> skip_addr (section: .init.text)
WARNING: modpost: vmlinux.o: section mismatch in reference: callthunks_translate_call_dest.cold (section: .text.unlikely) -> patch_dest (section: .init.text)
WARNING: modpost: vmlinux.o: section mismatch in reference: is_callthunk.cold (section: .text.unlikely) -> skip_addr (section: .init.text)
ERROR: modpost: Section mismatches detected.
Set CONFIG_SECTION_MISMATCH_WARN_ONLY=y to allow them.

Fixes: b2e9dfe54b ("x86/bpf: Emit call depth accounting if required")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20221215164334.968863-1-arnd@kernel.org
2022-12-27 12:51:58 +01:00