c5bf68fe0c
826806 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Kirill Smelkov
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c5bf68fe0c |
*: convert stream-like files from nonseekable_open -> stream_open
Using scripts/coccinelle/api/stream_open.cocci added in |
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Kirill Smelkov
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184012ad69 |
dtlk: remove double call to nonseekable_open
dtlk_open currently has 2 calls to nonseekable_open which are both
executed on success path. It was not hurting to make the extra call as
nonseekable_open is only changing file->f_flags in idempotent way.
However the first nonseekable_open is indeed both unneeded and looks
suspicious.
The first nonseekable_open was added in 6244f13c51 ("Fix up a couple of
drivers - notable sg - for nonseekability."; 2004-Aug-7). The second
nonseekable_open call was introduced in dc5c724584 ("Remove ESPIPE logic
from drivers, letting the VFS layer handle it instead.; 2004-Aug-8). The
latter patch being mass change probably missed to remove
nonseekable_open that was introduced into dtlk_open the day before.
Fix it: remove the extra/unneeded nonseekable_open call and leave the
call to nonseekable_open only on the path where we are actually opening
the file.
Suggested-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Kirill Smelkov <kirr@nexedi.com>
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Linus Torvalds
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e93c9c99a6 | Linux 5.1 | ||
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Linus Torvalds
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7178fb0b23 |
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
"I'd like to apologize for this very late pull request: I was dithering
through the week whether to send the fixes, and then yesterday Jiri's
crash fix for a regression introduced in this cycle clearly marked
perf/urgent as 'must merge now'.
Most of the commits are tooling fixes, plus there's three kernel fixes
via four commits:
- race fix in the Intel PEBS code
- fix an AUX bug and roll back a previous attempt
- fix AMD family 17h generic HW cache-event perf counters
The largest diffstat contribution comes from the AMD fix - a new event
table is introduced, which is a fairly low risk change but has a large
linecount"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel: Fix race in intel_pmu_disable_event()
perf/x86/intel/pt: Remove software double buffering PMU capability
perf/ring_buffer: Fix AUX software double buffering
perf tools: Remove needless asm/unistd.h include fixing build in some places
tools arch uapi: Copy missing unistd.h headers for arc, hexagon and riscv
tools build: Add -ldl to the disassembler-four-args feature test
perf cs-etm: Always allocate memory for cs_etm_queue::prev_packet
perf cs-etm: Don't check cs_etm_queue::prev_packet validity
perf report: Report OOM in status line in the GTK UI
perf bench numa: Add define for RUSAGE_THREAD if not present
tools lib traceevent: Change tag string for error
perf annotate: Fix build on 32 bit for BPF annotation
tools uapi x86: Sync vmx.h with the kernel
perf bpf: Return value with unlocking in perf_env__find_btf()
MAINTAINERS: Include vendor specific files under arch/*/events/*
perf/x86/amd: Update generic hardware cache events for Family 17h
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Linus Torvalds
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70c9fb570b |
Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Ingo Molnar: "Fix a kobject memory leak in the cpufreq code" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/cpufreq: Fix kobject memleak |
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Linus Torvalds
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13369e8311 |
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Ingo Molnar: "Disable function tracing during early SME setup to fix a boot crash on SME-enabled kernels running distro kernels (some of which have function tracing enabled)" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm/mem_encrypt: Disable all instrumentation for early SME setup |
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Linus Torvalds
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51987affd6 |
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro: - a couple of ->i_link use-after-free fixes - regression fix for wrong errno on absent device name in mount(2) (this cycle stuff) - ancient UFS braino in large GID handling on Solaris UFS images (bogus cut'n'paste from large UID handling; wrong field checked to decide whether we should look at old (16bit) or new (32bit) field) * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: ufs: fix braino in ufs_get_inode_gid() for solaris UFS flavour Abort file_remove_privs() for non-reg. files [fix] get rid of checking for absent device name in vfs_get_tree() apparmorfs: fix use-after-free on symlink traversal securityfs: fix use-after-free on symlink traversal |
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Jiri Olsa
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6f55967ad9 |
perf/x86/intel: Fix race in intel_pmu_disable_event()
New race in x86_pmu_stop() was introduced by replacing the atomic __test_and_clear_bit() of cpuc->active_mask by separate test_bit() and __clear_bit() calls in the following commit: |
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Linus Torvalds
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6203838dec |
powerpc fixes for 5.1 #7
One regression fix. Changes we merged to STRICT_KERNEL_RWX on 32-bit were causing crashes under load on some machines depending on memory layout. Thanks to: Christophe Leroy. -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJczY3sAAoJEFHr6jzI4aWA9UkP/3iM1wt/L3iYpmfPA0MJ4h4f oEB2WR4KFhBHcMbLKUNS0m9MfecAxHyrFXW46lnFbqVLbaJ3rBSRBitTySo1VnT3 wJKJi/rEf1uNmjxFTKRuE4eL1+4H2OVbwF+CLRB4jaILBmgDyvgYQDkeYQE689ut VjLA1C/8PRlKFO/82nGPaASdugqk4o+swxNxODhG+Bjv+9KGSinK4LN6zqyLoU/f aS4APLO59xd6vXosDZRiK6C5efoMu+8kAm8/pyA9E8+0TFTdrtZcPrbCme9Vj9xh i1Ruzxf9njZaSG37TQpgaFA/IKlSjBqAdaRmA6dy7fQ+GAOpt7YhtNIhk9prvOT6 uGarcHuusQ/Nhy0pb+Kt5H90RKzcZr/pgDEjhujJdCnVozQnX4fvkOjm8SvV6vc4 ucy2zzraMRo3OTvs38YAyGj/MPxOvMYZ1G+v/rAxpfvmdDl6KQ3uCvSczujP7qo6 49VfvfENGRTQhb+KSQtD4VtR9rFvMco5F8m1TFlYI1+RcoxHqqcR8aTK22wQvs45 2J97mkOvVeIp2pO7+yB5c2t3rPG9Qg9ARifnxXyF+9Cb1h1USy3vF2zUCj+wZSeP l+cYYcjrk/C6btDTVARMOXLKyeB4CWHaSCz8s3HIrXkuZsJbA3/qGi25mCWAEOVj 1qN6UpFNICtXOHBCAPYx =/m4Q -----END PGP SIGNATURE----- Merge tag 'powerpc-5.1-7' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fix from Michael Ellerman: "One regression fix. Changes we merged to STRICT_KERNEL_RWX on 32-bit were causing crashes under load on some machines depending on memory layout. Thanks to Christophe Leroy" * tag 'powerpc-5.1-7' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/32s: Fix BATs setting with CONFIG_STRICT_KERNEL_RWX |
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Linus Torvalds
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aa1be08f52 |
* PPC and ARM bugfixes from submaintainers
* Fix old Windows versions on AMD (recent regression) * Fix old Linux versions on processors without EPT * Fixes for LAPIC timer optimizations -----BEGIN PGP SIGNATURE----- iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAlzMc18UHHBib256aW5p QHJlZGhhdC5jb20ACgkQv/vSX3jHroNE0ggAj4c9FVC5aFeiBAj1YIcDijT3UtmG AjhoESE61rZI3PkZ5vcj2GC8eS7sKxExpCrQLsB5rLCF+7X90+tW155BHTHGU0ey ZgfGj23vlbZpvwZ4B5ujQ/Lmpry76pmy8EYekQogPP/eJxOB3oMk06tjh1mfSdIn D4Gj8jvYBB2ygAfmW91+YLLZos56id0N+Hyn/s95w4I1o6hKlkdpTOURAJKSGTb1 2t0+XADUt4ZwPM6+2X/eOBMGpeZP0/eR7H3kdyPy3ydm0sFjMiAAs0NbNp3eblB6 oqnytnGUPt8EEoq+wdZahLTbgJst2Ds++XAvVdBZED7zwGaBSETfg03eCg== =YP4M -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull KVM fixes from Paolo Bonzini: - PPC and ARM bugfixes from submaintainers - Fix old Windows versions on AMD (recent regression) - Fix old Linux versions on processors without EPT - Fixes for LAPIC timer optimizations * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (21 commits) KVM: nVMX: Fix size checks in vmx_set_nested_state KVM: selftests: make hyperv_cpuid test pass on AMD KVM: lapic: Check for in-kernel LAPIC before deferencing apic pointer KVM: fix KVM_CLEAR_DIRTY_LOG for memory slots of unaligned size x86/kvm/mmu: reset MMU context when 32-bit guest switches PAE KVM: x86: Whitelist port 0x7e for pre-incrementing %rip Documentation: kvm: fix dirty log ioctl arch lists KVM: VMX: Move RSB stuffing to before the first RET after VM-Exit KVM: arm/arm64: Don't emulate virtual timers on userspace ioctls kvm: arm: Skip stage2 huge mappings for unaligned ipa backed by THP KVM: arm/arm64: Ensure vcpu target is unset on reset failure KVM: lapic: Convert guest TSC to host time domain if necessary KVM: lapic: Allow user to disable adaptive tuning of timer advancement KVM: lapic: Track lapic timer advance per vCPU KVM: lapic: Disable timer advancement if adaptive tuning goes haywire x86: kvm: hyper-v: deal with buggy TLB flush requests from WS2012 KVM: x86: Consider LAPIC TSC-Deadline timer expired if deadline too short KVM: PPC: Book3S: Protect memslots while validating user address KVM: PPC: Book3S HV: Perserve PSSCR FAKE_SUSPEND bit on guest exit KVM: arm/arm64: vgic-v3: Retire pending interrupts on disabling LPIs ... |
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Linus Torvalds
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82463436a7 |
Merge branch 'i2c/for-current-fixed' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang: "I2C driver bugfixes and a MAINTAINERS update for you" * 'i2c/for-current-fixed' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: Prevent runtime suspend of adapter when Host Notify is required i2c: synquacer: fix enumeration of slave devices MAINTAINERS: friendly takeover of i2c-gpio driver i2c: designware: ratelimit 'transfer when suspended' errors i2c: imx: correct the method of getting private data in notifier_call |
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Linus Torvalds
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a4ccb5f9dc |
drm one qxl revert
-----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJcy5J+AAoJEAx081l5xIa+IosP/1FoljP2aP+vyV2N4BSywZ3g VId1rB6i60W7bB9C84VOn5G3KKAagSGGoRI/KewAkTNeY+Q2U7SqiNM0c/I8mEe/ FLhaFM62iIKHBrJsDGf1sbH4jYWctgsiqSO4EM7zFd4jIA+5mnIXa9DFtvfq7AMC RPVPpkxigO+YpnS31MlNXd+xZa+9H1zI+FbUrW7RkyJZ4EO9Jxb4oHA3hlC7vXmE v/eYq+OLxo0yAeeYE2U9h/3Y0PH48r21eKbV6Fw96Q0lgKTNaiI/HMFo/xcKCs5u cCQgkzRK059ah43cwUqp1zq7uxITPjEVJoz/z7OUUjg0cX6BPDn28JuxAriSaNDI 9AcG6wIWW6lgqQxjhcUA+mqaMLzg3H4IBdChM8isZoI/m2ywiW7hqI1GBWucKgom zX3QLHkHmYw7Hq3X4CpoPNq2YkOC4PbxgZxLTtAxfHRvYn/DnswO7nxI8XuJqBt4 q+nE+3TP5htLR0Cl08WlpRY5uBCY78t0WLZ39HhN2LPIdGG0/pOegSFNbE6+9Om1 ugJtkIZZbQ8gllvrjqcvCRXlKWzw5pz99+Qb40zE/FBadVzlRJRksSM/WlKBYLh2 o9ZcuXN2PrakjlzSfzkhYYz6L6jeu4VeGVjmqtaYxyky4UWiqxKzBHMafSVcC7LV 3q0F1rgk339q1LB6occA =r03m -----END PGP SIGNATURE----- Merge tag 'drm-fixes-2019-05-03' of git://anongit.freedesktop.org/drm/drm Pull drm fix from Dave Airlie: "Just a single qxl revert" * tag 'drm-fixes-2019-05-03' of git://anongit.freedesktop.org/drm/drm: Revert "drm/qxl: drop prime import/export callbacks" |
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Linus Torvalds
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8f76216c80 |
Two fixes for the NKMP clks on Allwinner SoCs, a locking fix for clkdev
where we forgot to hold a lock while iterating a list that can change, and finally a build fix that adds some stubs for clk APIs that are used by devfreq drivers on platforms without the clk APIs. -----BEGIN PGP SIGNATURE----- iQJFBAABCAAvFiEE9L57QeeUxqYDyoaDrQKIl8bklSUFAlzLUg0RHHNib3lkQGtl cm5lbC5vcmcACgkQrQKIl8bklSWi/BAA2HPnkz1tAGNVDrzhzbbliSkz3BxLIq7w 9SBE7rnaYomTV7YQzof9/uk4rr+qh2e7Of2O9t2kxHTNVfoJ7ZO3M51hwIiamQxA w14goUYIBuj8sS8g1neYMkYPou9mwY0nBxKZIqu2UaULqAvDvcvENrJiJk4+N8QJ 1/HTO1zZk5sTW+rXgcHCOWyfUSVuHRKp61Y7j84ZqttGrFyo2xjHHQEJjWWnuBuD ocERvmJ33p3mfLrDka4tA+Xmv6sIFieECl1xq46DzUJvd6xwcyf61jWPXSPvFnx9 wiORtHpXsHQPXrp00tlEEIqtLN9hg9sx1S5U9mwyf8iuV+2Y/oe9NUcgBhFPmRcu X8myaIIN2yWwrr/UE9J77FDbz80Oo4aEIj9+CvxpWvOSExvvhDKOcOo6kE6MPWuV IMjZrv4BbNIxUn6gNzHdvpNdord5CsQ3CvEUR/Ohy4s4bdAK074T4WWxGJzf/NHr oX2d5/fEkBBVqvum+Vjr9oqyDruzim47O/qF2rKTc7c6miNGtAHhuJG8oh3tm2vL pW88T2OdHLjN7nPTvQZiwRxL2DEXSRXi00YG/sS7LRQ/6b4cwNLrhohSxtXXKdc9 CPK2lAJRLZyhbRv9UK3TO/PSbWXSc/X5ED0XFnO5088jrYQ8DnkPhQL8HJHZME6/ QIxRfCo/lYY= =VQZe -----END PGP SIGNATURE----- Merge tag 'clk-fixes-for-linus' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk fixes from Stephen Boyd: "Two fixes for the NKMP clks on Allwinner SoCs, a locking fix for clkdev where we forgot to hold a lock while iterating a list that can change, and finally a build fix that adds some stubs for clk APIs that are used by devfreq drivers on platforms without the clk APIs" * tag 'clk-fixes-for-linus' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: Add missing stubs for a few functions clkdev: Hold clocks_mutex while iterating clocks list clk: sunxi-ng: nkmp: Explain why zero width check is needed clk: sunxi-ng: nkmp: Avoid GENMASK(-1, 0) |
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Linus Torvalds
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46572f785f |
sound fixes for 5.1
A few stable fixes at this round. The USB Line6 audio fixes are a bit large, but they are rather trivial and pretty much device-specific, so should be safe to apply at this late stage. Ditto for other HD-audio quirks. -----BEGIN PGP SIGNATURE----- iQJCBAABCAAsFiEEIXTw5fNLNI7mMiVaLtJE4w1nLE8FAlzLNjoOHHRpd2FpQHN1 c2UuZGUACgkQLtJE4w1nLE97ng//QjXiwhJsAz1eLBaYiUDuZ+0IYLQoPGiSjsxV 3FjAlJgADTd8XYKxxiIb5HOmLia5ef3ZQBhc48KHVsJ/8w+Ctq08fpiglIpCKCR4 FfIrpQe8TUXFFBFLBnYSpeJc8KdjI7z5/cSAyXypbgpkt/ODerSq2TBcan19DAnr LQgRd2Bg1rlSfuNnlHz3dntyvUSFgfgTinUAmNeBzh6SdXQrajf1Sy4hEQzbkE+b OdJJsAlUQSHSa8R+6eH6gIlnaZ0xTwmctz0eT2+vGbNgNHJK2VI6B05ZsWO05pxQ TFZYBj4S8T6MHpRJdNLzWwg1bEHiM4uAi2OKGGL+TqQ0BFTcCZlf6C/vte1LsItt 2ftLX39iiEECwgnVsw3OrEcldwpF1iuhCMH+oDGelMiZR/1knq3D/FWPkrya6iu2 FJDY9xqUX/oX0M82R8I1yWD/Qg6LpYhYalq78sx6Mo7BgJ3QurC1xR0V9XGKKTUF tAr4CtVFVFy/4/hBRatAZz9RIypank6bWbgsSC/yss6JNEj+BapAVcHLO3IGZ7RY K8ZJrMzGNr/bVG014NAXY0uDQMfakppRzT8TRXdNP0RyDFr0b9Ju47f1f+yqaW4O f0pdiDNv9jIFdrBMoPkglxRgSWszyfCrBKvhziYxVOsS4utaM7MRBApC0E5jEgZl K3wNNZE= =CRYa -----END PGP SIGNATURE----- Merge tag 'sound-5.1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "A few stable fixes at this round. The USB Line6 audio fixes are a bit large, but they are rather trivial and pretty much device-specific, so should be safe to apply at this late stage. Ditto for other HD-audio quirks" * tag 'sound-5.1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda/realtek - Apply the fixup for ASUS Q325UAR ALSA: line6: use dynamic buffers ALSA: hda/realtek - Fixed Dell AIO speaker noise ALSA: hda/realtek - Add new Dell platform for headset mode |
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Alexander Shishkin
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72e830f684 |
perf/x86/intel/pt: Remove software double buffering PMU capability
Now that all AUX allocations are high-order by default, the software double buffering PMU capability doesn't make sense any more, get rid of it. In case some PMUs choose to opt out, we can re-introduce it. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: adrian.hunter@intel.com Link: http://lkml.kernel.org/r/20190503085536.24119-3-alexander.shishkin@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Alexander Shishkin
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26ae4f4406 |
perf/ring_buffer: Fix AUX software double buffering
This recent commit: |
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Ingo Molnar
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221856b16e |
perf/urgent fixes:
tools UAPI:
Arnaldo Carvalho de Melo:
- Sync x86's vmx.h with the kernel.
- Copy missing unistd.h headers for arc, hexagon and riscv, fixing
a reported build regression on the ARC 32-bit architecture.
perf bench numa:
Arnaldo Carvalho de Melo:
- Add define for RUSAGE_THREAD if not present, fixing the build on the
ARC architecture when only zlib and libnuma are present.
perf BPF:
Arnaldo Carvalho de Melo:
- The disassembler-four-args feature test needs -ldl on distros such as
Mageia 7.
Bo YU:
- Fix unlocking on success in perf_env__find_btf(), detected with
the coverity tool.
libtraceevent:
Leo Yan:
- Change misleading hard coded 'trace-cmd' string in error messages.
ARM hardware tracing:
Leo Yan:
- Always allocate memory for cs_etm_queue::prev_packet, fixing a segfault
when processing CoreSight perf data.
perf annotate:
Thadeu Lima de Souza Cascardo:
- Fix build on 32 bit for BPF.
perf report:
Thomas Richter:
- Report OOM in status line in the GTK UI.
core libs:
- Remove needless asm/unistd.h that, used with sys/syscall.h ended
up redefining the syscalls defines in environments such as the
ARC arch when using uClibc.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-urgent-for-mingo-5.1-20190502' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/urgent fixes from Arnaldo Carvalho de Melo:
tools UAPI:
Arnaldo Carvalho de Melo:
- Sync x86's vmx.h with the kernel.
- Copy missing unistd.h headers for arc, hexagon and riscv, fixing
a reported build regression on the ARC 32-bit architecture.
perf bench numa:
Arnaldo Carvalho de Melo:
- Add define for RUSAGE_THREAD if not present, fixing the build on the
ARC architecture when only zlib and libnuma are present.
perf BPF:
Arnaldo Carvalho de Melo:
- The disassembler-four-args feature test needs -ldl on distros such as
Mageia 7.
Bo YU:
- Fix unlocking on success in perf_env__find_btf(), detected with
the coverity tool.
libtraceevent:
Leo Yan:
- Change misleading hard coded 'trace-cmd' string in error messages.
ARM hardware tracing:
Leo Yan:
- Always allocate memory for cs_etm_queue::prev_packet, fixing a segfault
when processing CoreSight perf data.
perf annotate:
Thadeu Lima de Souza Cascardo:
- Fix build on 32 bit for BPF.
perf report:
Thomas Richter:
- Report OOM in status line in the GTK UI.
core libs:
- Remove needless asm/unistd.h that, used with sys/syscall.h ended
up redefining the syscalls defines in environments such as the
ARC arch when using uClibc.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Dave Airlie
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1daa0449d2 |
- One revert for QXL for a DRI3 breakage
-----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRcEzekXsqa64kGDp7j7w1vZxhRxQUCXMrhnAAKCRDj7w1vZxhR xZAEAQCAosKQv+TcDiykmghLMlhz/pj+T4I1GAnQnDOUO7/GWAEAuVtky5yMlJhP g6lpz+Xlc/8lQxIRxtST0QnoQOS5kQg= =6Pe3 -----END PGP SIGNATURE----- Merge tag 'drm-misc-fixes-2019-05-02' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes - One revert for QXL for a DRI3 breakage Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190502122529.hguztj3kncaixe3d@flea |
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Arnaldo Carvalho de Melo
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7e221b811f |
perf tools: Remove needless asm/unistd.h include fixing build in some places
We were including sys/syscall.h and asm/unistd.h, since sys/syscall.h includes asm/unistd.h, sometimes this leads to the redefinition of defines, breaking the build. Noticed on ARC with uCLibc. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Arnaldo Carvalho de Melo <arnaldo.melo@gmail.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Rich Felker <dalias@libc.org> Cc: Vineet Gupta <Vineet.Gupta1@synopsys.com> Link: https://lkml.kernel.org/n/tip-xjpf80o64i2ko74aj2jih0qg@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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|
Arnaldo Carvalho de Melo
|
18f90d372c |
tools arch uapi: Copy missing unistd.h headers for arc, hexagon and riscv
Since those were introduced in: |
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|
Arnaldo Carvalho de Melo
|
c638417e1a |
tools build: Add -ldl to the disassembler-four-args feature test
Thomas Backlund reported that the perf build was failing on the Mageia 7 distro, that is because it uses: cat /tmp/build/perf/feature/test-disassembler-four-args.make.output /usr/bin/ld: /usr/lib64/libbfd.a(plugin.o): in function `try_load_plugin': /home/iurt/rpmbuild/BUILD/binutils-2.32/objs/bfd/../../bfd/plugin.c:243: undefined reference to `dlopen' /usr/bin/ld: /home/iurt/rpmbuild/BUILD/binutils-2.32/objs/bfd/../../bfd/plugin.c:271: undefined reference to `dlsym' /usr/bin/ld: /home/iurt/rpmbuild/BUILD/binutils-2.32/objs/bfd/../../bfd/plugin.c:256: undefined reference to `dlclose' /usr/bin/ld: /home/iurt/rpmbuild/BUILD/binutils-2.32/objs/bfd/../../bfd/plugin.c:246: undefined reference to `dlerror' as we allow dynamic linking and loading Mageia 7 uses these linker flags: $ rpm --eval %ldflags -Wl,--as-needed -Wl,--no-undefined -Wl,-z,relro -Wl,-O1 -Wl,--build-id -Wl,--enable-new-dtags So add -ldl to this feature LDFLAGS. Reported-by: Thomas Backlund <tmb@mageia.org> Tested-by: Thomas Backlund <tmb@mageia.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Song Liu <songliubraving@fb.com> Link: https://lkml.kernel.org/r/20190501173158.GC21436@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Leo Yan
|
35bb59c10a |
perf cs-etm: Always allocate memory for cs_etm_queue::prev_packet
Robert Walker reported a segmentation fault is observed when process CoreSight trace data; this issue can be easily reproduced by the command 'perf report --itrace=i1000i' for decoding tracing data. If neither the 'b' flag (synthesize branches events) nor 'l' flag (synthesize last branch entries) are specified to option '--itrace', cs_etm_queue::prev_packet will not been initialised. After merging the code to support exception packets and sample flags, there introduced a number of uses of cs_etm_queue::prev_packet without checking whether it is valid, for these cases any accessing to uninitialised prev_packet will cause crash. As cs_etm_queue::prev_packet is used more widely now and it's already hard to follow which functions have been called in a context where the validity of cs_etm_queue::prev_packet has been checked, this patch always allocates memory for cs_etm_queue::prev_packet. Reported-by: Robert Walker <robert.walker@arm.com> Suggested-by: Robert Walker <robert.walker@arm.com> Signed-off-by: Leo Yan <leo.yan@linaro.org> Tested-by: Robert Walker <robert.walker@arm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Suzuki K Poulouse <suzuki.poulose@arm.com> Cc: linux-arm-kernel@lists.infradead.org Fixes: |
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|
Leo Yan
|
cf0c37b6db |
perf cs-etm: Don't check cs_etm_queue::prev_packet validity
Since cs_etm_queue::prev_packet is allocated for all cases, it will never be NULL pointer; now validity checking prev_packet is pointless, remove all of them. Signed-off-by: Leo Yan <leo.yan@linaro.org> Tested-by: Robert Walker <robert.walker@arm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Suzuki K Poulouse <suzuki.poulose@arm.com> Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/20190428083228.20246-2-leo.yan@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Thomas Richter
|
167e418fa0 |
perf report: Report OOM in status line in the GTK UI
An -ENOMEM error is not reported in the GTK GUI. Instead this error
message pops up on the screen:
[root@m35lp76 perf]# ./perf report -i perf.data.error68-1
Processing events... [974K/3M]
Error:failed to process sample
0xf4198 [0x8]: failed to process type: 68
However when I use the same perf.data file with --stdio it works:
[root@m35lp76 perf]# ./perf report -i perf.data.error68-1 --stdio \
| head -12
# Total Lost Samples: 0
#
# Samples: 76K of event 'cycles'
# Event count (approx.): 99056160000
#
# Overhead Command Shared Object Symbol
# ........ ............... ................. .........
#
8.81% find [kernel.kallsyms] [k] ftrace_likely_update
8.74% swapper [kernel.kallsyms] [k] ftrace_likely_update
8.34% sshd [kernel.kallsyms] [k] ftrace_likely_update
2.19% kworker/u512:1- [kernel.kallsyms] [k] ftrace_likely_update
The sample precentage is a bit low.....
The GUI always fails in the FINISHED_ROUND event (68) and does not
indicate the reason why.
When happened is the following. Perf report calls a lot of functions and
down deep when a FINISHED_ROUND event is processed, these functions are
called:
perf_session__process_event()
+ perf_session__process_user_event()
+ process_finished_round()
+ ordered_events__flush()
+ __ordered_events__flush()
+ do_flush()
+ ordered_events__deliver_event()
+ perf_session__deliver_event()
+ machine__deliver_event()
+ perf_evlist__deliver_event()
+ process_sample_event()
+ hist_entry_iter_add() --> only called in GUI case!!!
+ hist_iter__report__callback()
+ symbol__inc_addr_sample()
Now this functions runs out of memory and
returns -ENOMEM. This is reported all the way up
until function
perf_session__process_event() returns to its caller, where -ENOMEM is
changed to -EINVAL and processing stops:
if ((skip = perf_session__process_event(session, event, head)) < 0) {
pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n",
head, event->header.size, event->header.type);
err = -EINVAL;
goto out_err;
}
This occurred in the FINISHED_ROUND event when it has to process some
10000 entries and ran out of memory.
This patch indicates the root cause and displays it in the status line
of ther perf report GUI.
Output before (on GUI status line):
0xf4198 [0x8]: failed to process type: 68
Output after:
0xf4198 [0x8]: failed to process type: 68 [not enough memory]
Committer notes:
the 'skip' variable needs to be initialized to -EINVAL, so that when the
size is less than sizeof(struct perf_event_attr) we avoid this valid
compiler warning:
util/session.c: In function ‘perf_session__process_events’:
util/session.c:1936:7: error: ‘skip’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
err = skip;
~~~~^~~~~~
util/session.c:1874:6: note: ‘skip’ was declared here
s64 skip;
^~~~
cc1: all warnings being treated as errors
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Link: http://lkml.kernel.org/r/20190423105303.61683-1-tmricht@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
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Arnaldo Carvalho de Melo
|
bf561d3c13 |
perf bench numa: Add define for RUSAGE_THREAD if not present
While cross building perf to the ARC architecture on a fedora 30 host,
we were failing with:
CC /tmp/build/perf/bench/numa.o
bench/numa.c: In function ‘worker_thread’:
bench/numa.c:1261:12: error: ‘RUSAGE_THREAD’ undeclared (first use in this function); did you mean ‘SIGEV_THREAD’?
getrusage(RUSAGE_THREAD, &rusage);
^~~~~~~~~~~~~
SIGEV_THREAD
bench/numa.c:1261:12: note: each undeclared identifier is reported only once for each function it appears in
[perfbuilder@60d5802468f6 perf]$ /arc_gnu_2019.03-rc1_prebuilt_uclibc_le_archs_linux_install/bin/arc-linux-gcc --version | head -1
arc-linux-gcc (ARCv2 ISA Linux uClibc toolchain 2019.03-rc1) 8.3.1 20190225
[perfbuilder@60d5802468f6 perf]$
Trying to reproduce a report by Vineet, I noticed that, with just
cross-built zlib and numactl libraries, I ended up with the above
failure.
So, since RUSAGE_THREAD is available as a define, check for that and
numactl libraries, I ended up with the above failure.
So, since RUSAGE_THREAD is available as a define in the system headers,
check if it is defined in the 'perf bench numa' sources and define it if
not.
Now it builds and I have to figure out if the problem reported by Vineet
only takes place if we have libelf or some other library available.
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: linux-snps-arc@lists.infradead.org
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Link: https://lkml.kernel.org/n/tip-2wb4r1gir9xrevbpq7qp0amk@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
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|
Leo Yan
|
5f05182fab |
tools lib traceevent: Change tag string for error
The traceevent lib is used by the perf tool, and when executing perf test -v 6 it outputs error log on the ARM64 platform: running test 33 '*:*'trace-cmd: No such file or directory [...] trace-cmd: Invalid argument The trace event parsing code originally came from trace-cmd so it keeps the tag string "trace-cmd" for errors, this easily introduces the impression that the perf tool launches trace-cmd command for trace event parsing, but in fact the related parsing is accomplished by the traceevent lib. This patch changes the tag string to "libtraceevent" so that we can avoid confusion and let users to more easily connect the error with traceevent lib. Signed-off-by: Leo Yan <leo.yan@linaro.org> Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/20190424013802.27569-1-leo.yan@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Thadeu Lima de Souza Cascardo
|
01e985e900 |
perf annotate: Fix build on 32 bit for BPF annotation
Commit |
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Arnaldo Carvalho de Melo
|
24e45b49ee |
tools uapi x86: Sync vmx.h with the kernel
To pick up the changes from:
|
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Bo YU
|
2e712675ff |
perf bpf: Return value with unlocking in perf_env__find_btf()
In perf_env__find_btf(), we're returning without unlocking
"env->bpf_progs.lock". There may be cause lockdep issue.
Detected by CoversityScan, CID# 1444762:(program hangs(LOCK))
Signed-off-by: Bo YU <tsu.yubo@gmail.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Yonghong Song <yhs@fb.com>
Cc: bpf@vger.kernel.org
Cc: netdev@vger.kernel.org
Fixes:
|
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|
Linus Torvalds
|
ea9866793d |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
1) Out of bounds access in xfrm IPSEC policy unlink, from Yue Haibing.
2) Missing length check for esp4 UDP encap, from Sabrina Dubroca.
3) Fix byte order of RX STBC access in mac80211, from Johannes Berg.
4) Inifnite loop in bpftool map create, from Alban Crequy.
5) Register mark fix in ebpf verifier after pkt/null checks, from Paul
Chaignon.
6) Properly use rcu_dereference_sk_user_data in L2TP code, from Eric
Dumazet.
7) Buffer overrun in marvell phy driver, from Andrew Lunn.
8) Several crash and statistics handling fixes to bnxt_en driver, from
Michael Chan and Vasundhara Volam.
9) Several fixes to the TLS layer from Jakub Kicinski (copying negative
amounts of data in reencrypt, reencrypt frag copying, blind nskb->sk
NULL deref, etc).
10) Several UDP GRO fixes, from Paolo Abeni and Eric Dumazet.
11) PID/UID checks on ipv6 flow labels are inverted, from Willem de
Bruijn.
12) Use after free in l2tp, from Eric Dumazet.
13) IPV6 route destroy races, also from Eric Dumazet.
14) SCTP state machine can erroneously run recursively, fix from Xin
Long.
15) Adjust AF_PACKET msg_name length checks, add padding bytes if
necessary. From Willem de Bruijn.
16) Preserve skb_iif, so that forwarded packets have consistent values
even if fragmentation is involved. From Shmulik Ladkani.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (69 commits)
udp: fix GRO packet of death
ipv6: A few fixes on dereferencing rt->from
rds: ib: force endiannes annotation
selftests: fib_rule_tests: print the result and return 1 if any tests failed
ipv4: ip_do_fragment: Preserve skb_iif during fragmentation
net/tls: avoid NULL pointer deref on nskb->sk in fallback
selftests: fib_rule_tests: Fix icmp proto with ipv6
packet: validate msg_namelen in send directly
packet: in recvmsg msg_name return at least sizeof sockaddr_ll
sctp: avoid running the sctp state machine recursively
stmmac: pci: Fix typo in IOT2000 comment
Documentation: fix netdev-FAQ.rst markup warning
ipv6: fix races in ip6_dst_destroy()
l2ip: fix possible use-after-free
appletalk: Set error code if register_snap_client failed
net: dsa: bcm_sf2: fix buffer overflow doing set_rxnfc
rxrpc: Fix net namespace cleanup
ipv6/flowlabel: wait rcu grace period before put_pid()
vrf: Use orig netdev to count Ip6InNoRoutes and a fresh route lookup when sending dest unreach
tcp: add sanity tests in tcp_add_backlog()
...
|
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|
Linus Torvalds
|
5ce3307b6d |
for-linus-20190502
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Merge tag 'for-linus-20190502' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"This is mostly io_uring fixes/tweaks. Most of these were actually done
in time for the last -rc, but I wanted to ensure that everything
tested out great before including them. The code delta looks larger
than it really is, as it's mostly just comment additions/changes.
Outside of the comment additions/changes, this is mostly removal of
unnecessary barriers. In all, this pull request contains:
- Tweak to how we handle errors at submission time. We now post a
completion event if the error occurs on behalf of an sqe, instead
of returning it through the system call. If the error happens
outside of a specific sqe, we return the error through the system
call. This makes it nicer to use and makes the "normal" use case
behave the same as the offload cases. (me)
- Fix for a missing req reference drop from async context (me)
- If an sqe is submitted with RWF_NOWAIT, don't punt it to async
context. Return -EAGAIN directly, instead of using it as a hint to
do async punt. (Stefan)
- Fix notes on barriers (Stefan)
- Remove unnecessary barriers (Stefan)
- Fix potential double free of memory in setup error (Mark)
- Further improve sq poll CPU validation (Mark)
- Fix page allocation warning and leak on buffer registration error
(Mark)
- Fix iov_iter_type() for new no-ref flag (Ming)
- Fix a case where dio doesn't honor bio no-page-ref (Ming)"
* tag 'for-linus-20190502' of git://git.kernel.dk/linux-block:
io_uring: avoid page allocation warnings
iov_iter: fix iov_iter_type
block: fix handling for BIO_NO_PAGE_REF
io_uring: drop req submit reference always in async punt
io_uring: free allocated io_memory once
io_uring: fix SQPOLL cpu validation
io_uring: have submission side sqe errors post a cqe
io_uring: remove unnecessary barrier after unsetting IORING_SQ_NEED_WAKEUP
io_uring: remove unnecessary barrier after incrementing dropped counter
io_uring: remove unnecessary barrier before reading SQ tail
io_uring: remove unnecessary barrier after updating SQ head
io_uring: remove unnecessary barrier before reading cq head
io_uring: remove unnecessary barrier before wq_has_sleeper
io_uring: fix notes on barriers
io_uring: fix handling SQEs requesting NOWAIT
|
||
Jarkko Nikula
|
72bfcee11c |
i2c: Prevent runtime suspend of adapter when Host Notify is required
Multiple users have reported their Synaptics touchpad has stopped working between v4.20.1 and v4.20.2 when using SMBus interface. The culprit for this appeared to be commit |
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Ard Biesheuvel
|
95e0cf3cae |
i2c: synquacer: fix enumeration of slave devices
The I2C host driver for SynQuacer fails to populate the of_node and
ACPI companion fields of the struct i2c_adapter it instantiates,
resulting in enumeration of the subordinate I2C bus to fail.
Fixes:
|
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Wolfram Sang
|
fb31fbef9c |
MAINTAINERS: friendly takeover of i2c-gpio driver
I haven't heard from Haavard in years despite putting him to the CC list for i2c-gpio related mails. Since I was doing the work on this driver for a while now, let me take official maintainership, so it will be more clear to users. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Acked-by: Haavard Skinnemoen <hskinnemoen@gmail.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> |
||
Kim Phillips
|
1804569d87 |
MAINTAINERS: Include vendor specific files under arch/*/events/*
Add an explicit subdirectory specification for arch/x86/events/amd to
the MAINTAINERS file, to distinguish it from its parent. This will
produce the correct set of maintainers for the files found therein.
Signed-off-by: Kim Phillips <kim.phillips@amd.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Gary Hook <Gary.Hook@amd.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Janakarajan Natarajan <Janakarajan.Natarajan@amd.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Martin Liška <mliska@suse.cz>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Pu Wen <puwen@hygon.cn>
Cc: Stephane Eranian <eranian@google.com>
Cc: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Thomas Lendacky <Thomas.Lendacky@amd.com>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: linux-kernel@vger.kernel.org
Fixes:
|
||
|
Kim Phillips
|
0e3b74e262 |
perf/x86/amd: Update generic hardware cache events for Family 17h
Add a new amd_hw_cache_event_ids_f17h assignment structure set
for AMD families 17h and above, since a lot has changed. Specifically:
L1 Data Cache
The data cache access counter remains the same on Family 17h.
For DC misses, PMCx041's definition changes with Family 17h,
so instead we use the L2 cache accesses from L1 data cache
misses counter (PMCx060,umask=0xc8).
For DC hardware prefetch events, Family 17h breaks compatibility
for PMCx067 "Data Prefetcher", so instead, we use PMCx05a "Hardware
Prefetch DC Fills."
L1 Instruction Cache
PMCs 0x80 and 0x81 (32-byte IC fetches and misses) are backward
compatible on Family 17h.
For prefetches, we remove the erroneous PMCx04B assignment which
counts how many software data cache prefetch load instructions were
dispatched.
LL - Last Level Cache
Removing PMCs 7D, 7E, and 7F assignments, as they do not exist
on Family 17h, where the last level cache is L3. L3 counters
can be accessed using the existing AMD Uncore driver.
Data TLB
On Intel machines, data TLB accesses ("dTLB-loads") are assigned
to counters that count load/store instructions retired. This
is inconsistent with instruction TLB accesses, where Intel
implementations report iTLB misses that hit in the STLB.
Ideally, dTLB-loads would count higher level dTLB misses that hit
in lower level TLBs, and dTLB-load-misses would report those
that also missed in those lower-level TLBs, therefore causing
a page table walk. That would be consistent with instruction
TLB operation, remove the redundancy between dTLB-loads and
L1-dcache-loads, and prevent perf from producing artificially
low percentage ratios, i.e. the "0.01%" below:
42,550,869 L1-dcache-loads
41,591,860 dTLB-loads
4,802 dTLB-load-misses # 0.01% of all dTLB cache hits
7,283,682 L1-dcache-stores
7,912,392 dTLB-stores
310 dTLB-store-misses
On AMD Families prior to 17h, the "Data Cache Accesses" counter is
used, which is slightly better than load/store instructions retired,
but still counts in terms of individual load/store operations
instead of TLB operations.
So, for AMD Families 17h and higher, this patch assigns "dTLB-loads"
to a counter for L1 dTLB misses that hit in the L2 dTLB, and
"dTLB-load-misses" to a counter for L1 DTLB misses that caused
L2 DTLB misses and therefore also caused page table walks. This
results in a much more accurate view of data TLB performance:
60,961,781 L1-dcache-loads
4,601 dTLB-loads
963 dTLB-load-misses # 20.93% of all dTLB cache hits
Note that for all AMD families, data loads and stores are combined
in a single accesses counter, so no 'L1-dcache-stores' are reported
separately, and stores are counted with loads in 'L1-dcache-loads'.
Also note that the "% of all dTLB cache hits" string is misleading
because (a) "dTLB cache": although TLBs can be considered caches for
page tables, in this context, it can be misinterpreted as data cache
hits because the figures are similar (at least on Intel), and (b) not
all those loads (technically accesses) technically "hit" at that
hardware level. "% of all dTLB accesses" would be more clear/accurate.
Instruction TLB
On Intel machines, 'iTLB-loads' measure iTLB misses that hit in the
STLB, and 'iTLB-load-misses' measure iTLB misses that also missed in
the STLB and completed a page table walk.
For AMD Family 17h and above, for 'iTLB-loads' we replace the
erroneous instruction cache fetches counter with PMCx084
"L1 ITLB Miss, L2 ITLB Hit".
For 'iTLB-load-misses' we still use PMCx085 "L1 ITLB Miss,
L2 ITLB Miss", but set a 0xff umask because without it the event
does not get counted.
Branch Predictor (BPU)
PMCs 0xc2 and 0xc3 continue to be valid across all AMD Families.
Node Level Events
Family 17h does not have a PMCx0e9 counter, and corresponding counters
have not been made available publicly, so for now, we mark them as
unsupported for Families 17h and above.
Reference:
"Open-Source Register Reference For AMD Family 17h Processors Models 00h-2Fh"
Released 7/17/2018, Publication #56255, Revision 3.03:
https://www.amd.com/system/files/TechDocs/56255_OSRR.pdf
[ mingo: tidied up the line breaks. ]
Signed-off-by: Kim Phillips <kim.phillips@amd.com>
Cc: <stable@vger.kernel.org> # v4.9+
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Janakarajan Natarajan <Janakarajan.Natarajan@amd.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Martin Liška <mliska@suse.cz>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Pu Wen <puwen@hygon.cn>
Cc: Stephane Eranian <eranian@google.com>
Cc: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Thomas Lendacky <Thomas.Lendacky@amd.com>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: linux-kernel@vger.kernel.org
Cc: linux-perf-users@vger.kernel.org
Fixes:
|
||
|
Wolfram Sang
|
6bac9bc273 |
i2c: designware: ratelimit 'transfer when suspended' errors
There are two problems with dev_err() here. One: It is not ratelimited.
Two: We don't see which driver tried to transfer something with a
suspended adapter. Switch to dev_WARN_ONCE to fix both issues. Drawback
is that we don't see if multiple drivers are trying to transfer while
suspended. They need to be discovered one after the other now. This is
better than a high CPU load because a really broken driver might try to
resend endlessly.
Link: https://bugs.archlinux.org/task/62391
Fixes:
|
||
|
Linus Torvalds
|
b7a5b22b05 |
pci-v5.1-fixes-3
-----BEGIN PGP SIGNATURE-----
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XmvBFbuyuqieaTrljtS5PLbfT2DoD0ZISolQqTjDB4KCHr5u0KyaJgUnbHk4c7qq
arCOwEC6Ad/xRMmOd3V1qcPAHK8tNigCKOGYOtEk+YfLWfsla7FlqJBtp+5eZ7NZ
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BVglWam4vI95a44N/9w+oPao8p5NMnldWbH7/g3iKFPASylLNUDPT/wKdpACYneK
ADJmf3+A9OoI7AWEyadR9WvvGuceQ2IoIL0tGI7824HnGwc5KpF+CcFUDTSPRbVO
94H3+q7M9YEA3CvQQkSqEIPtDcrFrO5x+aEijP4EhmE/7IV52VRyEY1IOHr88hzQ
umf6TbbxNPaW+g/1IOTSgESSl1nPXKe85Aeb7i4mle9XOp0YIHh44FYyrPoSeysd
egdij/9K+EPjlLpLm+X7L/dApwBNt+7dmblxanlilOSaDwkpfZ3yIm0jAgcuXhL6
lXj30vdlCmBiYRV5bMMletrflH29UsEsSpjkW99APU+6Dmx3E2/fWoeEPTkuHw5s
bPZ7n6KcJewg8Tg=
=ajSb
-----END PGP SIGNATURE-----
Merge tag 'pci-v5.1-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
"I apologize for sending these so late in the cycle. We went back and
forth about how to deal with the unexpected logging of intentional
link state changes and finally decided to just config them off by
default.
PCI fixes:
- Stop ignoring "pci=disable_acs_redir" parameter (Logan Gunthorpe)
- Use shared MSI/MSI-X vector for Link Bandwidth Management (Alex
Williamson)
- Add Kconfig option for Link Bandwidth notification messages (Keith
Busch)"
* tag 'pci-v5.1-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI/LINK: Add Kconfig option (default off)
PCI/portdrv: Use shared MSI/MSI-X vector for Bandwidth Management
PCI: Fix issue with "pci=disable_acs_redir" parameter being ignored
|
||
|
Linus Torvalds
|
e2a4b102d4 |
This pull request contains a single fix for MTD:
- Regression fix for the marvell nand driver. -----BEGIN PGP SIGNATURE----- iQJKBAABCAA0FiEEdgfidid8lnn52cLTZvlZhesYu8EFAlzGIXcWHHJpY2hhcmRA c2lnbWEtc3Rhci5hdAAKCRBm+VmF6xi7wccEEACKboXDWT+qMkUbSEfsmAG0lGlz gDxZ5/EH4Lfi7KzCWKyLLwM0xXH3ZLQ6vCg3jm2odbEiqKOWbIS/6kjoLdrYhngv +7LYAYmByozowiERjZn80EOrGp88oddf5H9+iRINh6U9g3ACR9xM9PMejKtxqust dHrTtSsZvyO6+lrjPqgmIwhZeqQ/4Lp1fzoNjVPi+mT39gfR8RlJw3PUnPvknjff Uxi/XrJUZEDex4MzvUwSNtBhUm1Mz3AHa9/gUHmUdPhbXLyQ2Qcsy2RJlwUPfn1T CUR33j5rTOu+ThC8Aydz2FxyZng0IU3BO3TQnEEz87dNCCYNAtIFDdr+Wm1uV/jI l8+w0vbfS8GazUU/EcaKVFSvK+b/5BvppClol4m1miI0I1wF5NIpYaSyG/OqVy3y vEcNzQTGokU5gJX8r7VgeIsvoXevL1AlngFhD+Rks+Q7kJ1F+vDzWaxZHO1RJ/tC Livk6DswWDAKx492rsTlF0My/WMrsleVS/9qJXkXDEEucVOD0Iox3biatjx5juKY DCzTwfr6Jd6144d4wL/4w4rI7atGAWciv5WBkGf9Xh7pnhOsIfQ6z3kF1JB1vlJL uHgRq0Vg20p3DzdpUXuz8dliNY7RIjciDuhq8a3RYyP7VzZZbZJRF82qEZhsbXTQ Y60r0yUqyOrR/mnhDg== =4gBj -----END PGP SIGNATURE----- Merge tag 'mtd/fixes-for-5.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux Pull MTD fix from Richard Weinberger: "A single regression fix for the marvell nand driver" * tag 'mtd/fixes-for-5.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: mtd: rawnand: marvell: Clean the controller state before each operation |
||
Keith Busch
|
2078e1e7f7 |
PCI/LINK: Add Kconfig option (default off)
|
||
Al Viro
|
4e9036042f |
ufs: fix braino in ufs_get_inode_gid() for solaris UFS flavour
To choose whether to pick the GID from the old (16bit) or new (32bit)
field, we should check if the old gid field is set to 0xffff. Mainline
checks the old *UID* field instead - cut'n'paste from the corresponding
code in ufs_get_inode_uid().
Fixes:
|
||
Christophe Leroy
|
12f363511d |
powerpc/32s: Fix BATs setting with CONFIG_STRICT_KERNEL_RWX
Serge reported some crashes with CONFIG_STRICT_KERNEL_RWX enabled
on a book3s32 machine.
Analysis shows two issues:
- BATs addresses and sizes are not properly aligned.
- There is a gap between the last address covered by BATs and the
first address covered by pages.
Memory mapped with DBATs:
0: 0xc0000000-0xc07fffff 0x00000000 Kernel RO coherent
1: 0xc0800000-0xc0bfffff 0x00800000 Kernel RO coherent
2: 0xc0c00000-0xc13fffff 0x00c00000 Kernel RW coherent
3: 0xc1400000-0xc23fffff 0x01400000 Kernel RW coherent
4: 0xc2400000-0xc43fffff 0x02400000 Kernel RW coherent
5: 0xc4400000-0xc83fffff 0x04400000 Kernel RW coherent
6: 0xc8400000-0xd03fffff 0x08400000 Kernel RW coherent
7: 0xd0400000-0xe03fffff 0x10400000 Kernel RW coherent
Memory mapped with pages:
0xe1000000-0xefffffff 0x21000000 240M rw present dirty accessed
This patch fixes both issues. With the patch, we get the following
which is as expected:
Memory mapped with DBATs:
0: 0xc0000000-0xc07fffff 0x00000000 Kernel RO coherent
1: 0xc0800000-0xc0bfffff 0x00800000 Kernel RO coherent
2: 0xc0c00000-0xc0ffffff 0x00c00000 Kernel RW coherent
3: 0xc1000000-0xc1ffffff 0x01000000 Kernel RW coherent
4: 0xc2000000-0xc3ffffff 0x02000000 Kernel RW coherent
5: 0xc4000000-0xc7ffffff 0x04000000 Kernel RW coherent
6: 0xc8000000-0xcfffffff 0x08000000 Kernel RW coherent
7: 0xd0000000-0xdfffffff 0x10000000 Kernel RW coherent
Memory mapped with pages:
0xe0000000-0xefffffff 0x20000000 256M rw present dirty accessed
Fixes:
|
||
Eric Dumazet
|
4dd2b82d5a |
udp: fix GRO packet of death
syzbot was able to crash host by sending UDP packets with a 0 payload.
TCP does not have this issue since we do not aggregate packets without
payload.
Since dev_gro_receive() sets gso_size based on skb_gro_len(skb)
it seems not worth trying to cope with padded packets.
BUG: KASAN: slab-out-of-bounds in skb_gro_receive+0xf5f/0x10e0 net/core/skbuff.c:3826
Read of size 16 at addr ffff88808893fff0 by task syz-executor612/7889
CPU: 0 PID: 7889 Comm: syz-executor612 Not tainted 5.1.0-rc7+ #96
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x172/0x1f0 lib/dump_stack.c:113
print_address_description.cold+0x7c/0x20d mm/kasan/report.c:187
kasan_report.cold+0x1b/0x40 mm/kasan/report.c:317
__asan_report_load16_noabort+0x14/0x20 mm/kasan/generic_report.c:133
skb_gro_receive+0xf5f/0x10e0 net/core/skbuff.c:3826
udp_gro_receive_segment net/ipv4/udp_offload.c:382 [inline]
call_gro_receive include/linux/netdevice.h:2349 [inline]
udp_gro_receive+0xb61/0xfd0 net/ipv4/udp_offload.c:414
udp4_gro_receive+0x763/0xeb0 net/ipv4/udp_offload.c:478
inet_gro_receive+0xe72/0x1110 net/ipv4/af_inet.c:1510
dev_gro_receive+0x1cd0/0x23c0 net/core/dev.c:5581
napi_gro_frags+0x36b/0xd10 net/core/dev.c:5843
tun_get_user+0x2f24/0x3fb0 drivers/net/tun.c:1981
tun_chr_write_iter+0xbd/0x156 drivers/net/tun.c:2027
call_write_iter include/linux/fs.h:1866 [inline]
do_iter_readv_writev+0x5e1/0x8e0 fs/read_write.c:681
do_iter_write fs/read_write.c:957 [inline]
do_iter_write+0x184/0x610 fs/read_write.c:938
vfs_writev+0x1b3/0x2f0 fs/read_write.c:1002
do_writev+0x15e/0x370 fs/read_write.c:1037
__do_sys_writev fs/read_write.c:1110 [inline]
__se_sys_writev fs/read_write.c:1107 [inline]
__x64_sys_writev+0x75/0xb0 fs/read_write.c:1107
do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x441cc0
Code: 05 48 3d 01 f0 ff ff 0f 83 9d 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 83 3d 51 93 29 00 00 75 14 b8 14 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 74 09 fc ff c3 48 83 ec 08 e8 ba 2b 00 00
RSP: 002b:00007ffe8c716118 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00007ffe8c716150 RCX: 0000000000441cc0
RDX: 0000000000000001 RSI: 00007ffe8c716170 RDI: 00000000000000f0
RBP: 0000000000000000 R08: 000000000000ffff R09: 0000000000a64668
R10: 0000000020000040 R11: 0000000000000246 R12: 000000000000c2d9
R13: 0000000000402b50 R14: 0000000000000000 R15: 0000000000000000
Allocated by task 5143:
save_stack+0x45/0xd0 mm/kasan/common.c:75
set_track mm/kasan/common.c:87 [inline]
__kasan_kmalloc mm/kasan/common.c:497 [inline]
__kasan_kmalloc.constprop.0+0xcf/0xe0 mm/kasan/common.c:470
kasan_slab_alloc+0xf/0x20 mm/kasan/common.c:505
slab_post_alloc_hook mm/slab.h:437 [inline]
slab_alloc mm/slab.c:3393 [inline]
kmem_cache_alloc+0x11a/0x6f0 mm/slab.c:3555
mm_alloc+0x1d/0xd0 kernel/fork.c:1030
bprm_mm_init fs/exec.c:363 [inline]
__do_execve_file.isra.0+0xaa3/0x23f0 fs/exec.c:1791
do_execveat_common fs/exec.c:1865 [inline]
do_execve fs/exec.c:1882 [inline]
__do_sys_execve fs/exec.c:1958 [inline]
__se_sys_execve fs/exec.c:1953 [inline]
__x64_sys_execve+0x8f/0xc0 fs/exec.c:1953
do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Freed by task 5351:
save_stack+0x45/0xd0 mm/kasan/common.c:75
set_track mm/kasan/common.c:87 [inline]
__kasan_slab_free+0x102/0x150 mm/kasan/common.c:459
kasan_slab_free+0xe/0x10 mm/kasan/common.c:467
__cache_free mm/slab.c:3499 [inline]
kmem_cache_free+0x86/0x260 mm/slab.c:3765
__mmdrop+0x238/0x320 kernel/fork.c:677
mmdrop include/linux/sched/mm.h:49 [inline]
finish_task_switch+0x47b/0x780 kernel/sched/core.c:2746
context_switch kernel/sched/core.c:2880 [inline]
__schedule+0x81b/0x1cc0 kernel/sched/core.c:3518
preempt_schedule_irq+0xb5/0x140 kernel/sched/core.c:3745
retint_kernel+0x1b/0x2d
arch_local_irq_restore arch/x86/include/asm/paravirt.h:767 [inline]
kmem_cache_free+0xab/0x260 mm/slab.c:3766
anon_vma_chain_free mm/rmap.c:134 [inline]
unlink_anon_vmas+0x2ba/0x870 mm/rmap.c:401
free_pgtables+0x1af/0x2f0 mm/memory.c:394
exit_mmap+0x2d1/0x530 mm/mmap.c:3144
__mmput kernel/fork.c:1046 [inline]
mmput+0x15f/0x4c0 kernel/fork.c:1067
exec_mmap fs/exec.c:1046 [inline]
flush_old_exec+0x8d9/0x1c20 fs/exec.c:1279
load_elf_binary+0x9bc/0x53f0 fs/binfmt_elf.c:864
search_binary_handler fs/exec.c:1656 [inline]
search_binary_handler+0x17f/0x570 fs/exec.c:1634
exec_binprm fs/exec.c:1698 [inline]
__do_execve_file.isra.0+0x1394/0x23f0 fs/exec.c:1818
do_execveat_common fs/exec.c:1865 [inline]
do_execve fs/exec.c:1882 [inline]
__do_sys_execve fs/exec.c:1958 [inline]
__se_sys_execve fs/exec.c:1953 [inline]
__x64_sys_execve+0x8f/0xc0 fs/exec.c:1953
do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
The buggy address belongs to the object at ffff88808893f7c0
which belongs to the cache mm_struct of size 1496
The buggy address is located 600 bytes to the right of
1496-byte region [ffff88808893f7c0, ffff88808893fd98)
The buggy address belongs to the page:
page:ffffea0002224f80 count:1 mapcount:0 mapping:ffff88821bc40ac0 index:0xffff88808893f7c0 compound_mapcount: 0
flags: 0x1fffc0000010200(slab|head)
raw: 01fffc0000010200 ffffea00025b4f08 ffffea00027b9d08 ffff88821bc40ac0
raw: ffff88808893f7c0 ffff88808893e440 0000000100000001 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff88808893fe80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88808893ff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88808893ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
^
ffff888088940000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff888088940080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Fixes:
|
||
|
Linus Torvalds
|
600d725831 |
Power Supply Fixes for 5.1 cycle
* cpcap-battery: fix a division by zero * core: fix systemd issue due to log messages produced by uevent -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE72YNB0Y/i3JqeVQT2O7X88g7+poFAlzKDOMACgkQ2O7X88g7 +prUnhAAlQoIMn2x7DnjYo1ZL6lj4+PHSzIC9qSVA3EGdRMq49pEHYcVuVN6kwCf amWMjq9Yt1787jSQM/QlvnA0XjKCPSQE7qFzLa6/VrHbNh4KXaZt5I6s9k0+/qKr SN30EeDfrtp9AYMu/AAZe+HtdSUCo29HuZsznb3QCCszGUG30PESuqHMqV9iCmul c4XIBMIsl0vxDxo2jJUzLtNdSlf9bmAQIiQ68GrkGCcPmP7bRg7U4i8UImB6D34v LTULG5U8coCbwZb+2n6Fc6Zek1GkWYteJODSomyxHpSt/6Y4z4s4XGcrkk4sYz8R QVUL/I5DXnZP9CZg/tJUuyno9PFK5AgS1695SGBNODQgEFcD11QViWlYZDt4/RZh QRiD2L5pSB39N+WSRcAmHns7JHLmrlc2kGChvF8ULNwLMuiziVrgv9uDfNHoebRG v2EGj2RInXlf06tME5cA1hQzcT2CrejkpHrSp84Hina1VUMig4VDi57QURSsnyyR e13jwF9k7Tnbn26YNAeGtzSjDHU8CjfQ9zlHOjnyr3F+eYlJrov+4hJWSBWHPJTj G55BIrVkOLAd4VhbhoGwGu9hLZC2hHVV4M25Ijp7zBSNGHxcb1t5ZcUx2PAwB7R4 RZxqosnu+B6OQjHWy8vgIBaUUbMGM1/Ldrx/uFWGVtL+qBUJIiY= =Q783 -----END PGP SIGNATURE----- Merge tag 'for-v5.1-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply Pull power supply fixes from Sebastian Reichel: "Two more fixes for the 5.1 cycle. One division by zero fix in a specific driver and one core workaround for bad userspace behaviour from systemd regarding uevents. IMHO this can be considered to be a userspace bug, but the debug messages are useless anyways - cpcap-battery: fix a division by zero - core: fix systemd issue due to log messages produced by uevent" * tag 'for-v5.1-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: power: supply: sysfs: prevent endless uevent loop with CONFIG_POWER_SUPPLY_DEBUG power: supply: cpcap-battery: Fix division by zero |
||
Martin KaFai Lau
|
886b7a5010 |
ipv6: A few fixes on dereferencing rt->from
It is a followup after the fix in commit |
||
Nicholas Mc Guire
|
f3505745c0 |
rds: ib: force endiannes annotation
While the endiannes is being handled correctly as indicated by the comment above the offending line - sparse was unhappy with the missing annotation as be64_to_cpu() expects a __be64 argument. To mitigate this annotation all involved variables are changed to a consistent __le64 and the conversion to uint64_t delayed to the call to rds_cong_map_updated(). Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
||
|
Linus Torvalds
|
65beea4c3a |
ARC updates for 5.1 final
- regression in memset if line size !64 - avoid panic if PAE and IOC -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJcycMVAAoJEGnX8d3iisJefY0P/R5jR6F0XDsnV/px0tQz2Dhk Lwl759QUoXeRzqeq8m2xDffIiEUmmPuUspauoVaGcHLMwBHOEOZ0WjTK3eSCF3XK zDT0cQ0oWcXyRZo46GLhW6hZYy17tFhXsE7fAURxIUrwu5sUaW5Z+YTMXrbRzWUb QmVJuf98sN4uheZ2Ayupg/5rOQhXh9+/IlMcybytmWQa+F4IuJkd505wNfQ3kWqQ ZeSNhzpKNAf4IofpfCowIGKE+9eyeeinMdYbppBkPCbX+ozpAj8ZcV3WRH5sFexP Ha3llkN4wBQZ0HglEO3FqRYnkU1qKgADXHcW3rz6nxNCb9WqGCk7sx1PuEARqAOX ZLvXT2c6+rUc74dORZAHjLdT4HEE1nSIp7KmuvYQY/Hg/AdcKcBtgJEAToJa4iNY lhZnjK5SXUV2ppPLI2duHphGeh3jzjR7Oa3ksLxKc2iQ2RBCJeyBj4G9g7NJYnL0 sb5pUDadHkn5MkqOU0Zy6mQ+5Lm1CCfodc2F/3KMyxNxAkmC8mhDFsASgY/2Z3li llj9NX2Cnmw697shFQTg24hxKZ1yg49c1LhHnkIvnPdJ4DuDjWIHnpuzHnBWCbHS qRw4ZZ2Psr2hNTzauVwHYbpLALcHTMUXU6Ecx0TuEWNyGchehV4llmvCn1ZxWGmQ v+2cv+4Jt2l6ocRxENDY =Qm+2 -----END PGP SIGNATURE----- Merge tag 'arc-5.1-final' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc Pull ARC fixes from Vineet Gupta: "A few minor fixes for ARC. - regression in memset if line size !64 - avoid panic if PAE and IOC" * tag 'arc-5.1-final' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: ARC: memset: fix build with L1_CACHE_SHIFT != 6 ARC: [hsdk] Make it easier to add PAE40 region to DTB ARC: PAE40: don't panic and instead turn off hw ioc |
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Alex Williamson
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15d2aba7c6 |
PCI/portdrv: Use shared MSI/MSI-X vector for Bandwidth Management
The Interrupt Message Number in the PCIe Capabilities register (PCIe r4.0,
sec 7.5.3.2) indicates which MSI/MSI-X vector is shared by interrupts
related to the PCIe Capability, including Link Bandwidth Management and
Link Autonomous Bandwidth Interrupts (Link Control, 7.5.3.7), Command
Completed and Hot-Plug Interrupts (Slot Control, 7.5.3.10), and the PME
Interrupt (Root Control, 7.5.3.12).
pcie_message_numbers() checked whether we want to enable PME or Hot-Plug
interrupts but neglected to check for Link Bandwidth Management, so if we
only wanted the Bandwidth Management interrupts, it decided we didn't need
any vectors at all. Then pcie_port_enable_irq_vec() tried to reallocate
zero vectors, which failed, resulting in fallback to INTx.
On some systems, e.g., an X79-based workstation, that INTx seems broken or
not handled correctly, so we got spurious IRQ16 interrupts for Bandwidth
Management events.
Change pcie_message_numbers() so that if we want Link Bandwidth Management
interrupts, we use the shared MSI/MSI-X vector from the PCIe Capabilities
register.
Fixes:
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Linus Torvalds
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fb0af61d3a |
ACPI fix for 5.1-rc8
Revert a recent ACPICA change that caused initialization to fail on systems with Thunderbolt docking stations connected at the init time. -----BEGIN PGP SIGNATURE----- iQJGBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAlzJV98SHHJqd0Byand5 c29ja2kubmV0AAoJEILEb/54YlRx0FIP/iBkMXnLk6snFKOjOfHRqYx/cLzix67Q hcVDzUPoLF8FuXyRoHPiqH9eVMznLp801X1r0ER1GnCkp5GJPS05beXEhZBqPUNr dz8UXGL6iJjT7A2L8DRAyDg/H8Ql7ddg/7qKVQbjr9V8Yu1KFRTCP/6n+d3vhDuB PRi1yII7sSkzFhHRyS6Yl8PuW+hxeBfgoFelfNWwUBtozTkAW9TyBmDXIfqzZjfS QBh9y4lp0yOYDjhZ2zwKEQKCzO6g1l2OC7o0hvYnkwByrV/fKIfNMvzrdU7JO0sP 42qq6ap52+2TBbI8fqf9hWuXDCnFZ1DtHLKs4vecGV2FzXN20Qh8lPiTi4bUQmze 8KRVqfpSyKKQ4U00YuV47S1GoBnrUZ1LplH7tnIVoa0DSkubcAlA2+uUvjDXOKUJ C2QkKOQ+wVZTw2GEoj2JS0iKArb6tW/6F8I1dtZomIZnAEvTzPBGdbiX4zbp9LAp 0PTU41tTmV/lROs2cVnyf7tU2dM57r6O4pMn1ZMK/Lq4aLm9R2iEAk29vhalgvVw HvgbCoXHz6cark7b90098JPnT/bCvnGXJqoZ6G/2vwoujuvNPA4FHbt7HG3ijo7u bxABEhewIeEiJHcmbjEeqczA35vSoeIqeXyYAhtAnlHG3jooexKSDXAmiHYY1+jp AfuAQL38awi0 =2XoK -----END PGP SIGNATURE----- Merge tag 'acpi-5.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI fix from Rafael Wysocki: "Revert a recent ACPICA change that caused initialization to fail on systems with Thunderbolt docking stations connected at the init time" * tag 'acpi-5.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: Revert "ACPICA: Clear status of GPEs before enabling them" |
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Linus Torvalds
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7e74e235bb |
gcc-9: don't warn about uninitialized btrfs extent_type variable
The 'extent_type' variable does seem to be reliably initialized, but it's _very_ non-obvious, since there's a "goto next" case that jumps over the normal initialization. That will then always trigger the "start >= extent_end" test, which will end up never falling through to the use of that variable. But the code is certainly not obvious, and the compiler warning looks reasonable. Make 'extent_type' an int, and initialize it to an invalid negative value, which seems to be the common pattern in other places. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |