Граф коммитов

1072566 Коммитов

Автор SHA1 Сообщение Дата
Linus Torvalds 7eb3625489 s390 updates for 5.17-rc2
- Fix loading of modules with lots of relocations and add a regression
   test for it.
 
 - Fix machine check handling for vector validity and guarded storage
   validity failures in KVM guests.
 
 - Fix hypervisor performance data to include z/VM guests with access
   control group set.
 
 - Fix z900 build problem in uaccess code.
 
 - Update defconfigs.
 -----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCAAdFiEE3QHqV+H2a8xAv27vjYWKoQLXFBgFAmHz1KcACgkQjYWKoQLX
 FBjpVAgAi8Sexa9dvGNNIjohzvQW7kklLWJyeeC5PURiNi4tuJ2mE94G50d/ariQ
 fl4nWRPiGQS0/f2/EwsTCpZ0VSIlXJ8C6gu6Sqx7C42E530f5ivZ3eyvvoEWWk+1
 liHcOHMxZVuZ2AbKVy+o0D1q05k+9iRmtz3wNyLdxFk4xIezTycQSGqaPhr2LWxy
 OHWUVBm1mqNvsdFSPqfiQN6NIgTSrIU8j0iWfhW+3437wgQ+hkyDXf6VfjBBG/aS
 qMI3C5G9tJNYnyWG4Z2cOPpnTpOqdndn9zakDKMMlcSFq47++DwDKKdl7Q2rQIm0
 SnsBwlWO5xg/g3f5SogfGrF6/7QM6w==
 =hTbs
 -----END PGP SIGNATURE-----

Merge tag 's390-5.17-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 fixes from Vasily Gorbik:

 - Fix loading of modules with lots of relocations and add a regression
   test for it.

 - Fix machine check handling for vector validity and guarded storage
   validity failures in KVM guests.

 - Fix hypervisor performance data to include z/VM guests with access
   control group set.

 - Fix z900 build problem in uaccess code.

 - Update defconfigs.

* tag 's390-5.17-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/hypfs: include z/VM guests with access control group set
  s390: update defconfigs
  s390/module: test loading modules with a lot of relocations
  s390/module: fix loading modules with a lot of relocations
  s390/uaccess: fix compile error
  s390/nmi: handle vector validity failures for KVM guests
  s390/nmi: handle guarded storage validity failures for KVM guests
2022-01-28 18:50:05 +02:00
Linus Torvalds 8157f47073 A ZERO_SIZE_PTR dereference fix from Xiubo and two fixes for async
creates interacting with pool namespace-constrained OSD permissions
 from Jeff (marked for stable).
 -----BEGIN PGP SIGNATURE-----
 
 iQFHBAABCAAxFiEEydHwtzie9C7TfviiSn/eOAIR84sFAmH0FAkTHGlkcnlvbW92
 QGdtYWlsLmNvbQAKCRBKf944AhHzixpkB/4ssxwtq8aP82Kh/WuS9qdtofWtZvOB
 6BPJdxseWvVMk9Bw/bO6BrxHpHJJKbhPPxKkhJGliSi19kWJKC7FYbuDRp7ffj4Y
 3UDiRaD5aQyjFi1rIrBjDb3dgA1dxdXH4EVAPf44dlRD7HjqaglVldFWSHxqH1RQ
 v4eB9RYHzNZKuAFsXF4+bzwZXMWgzaMXDNA5AzgRb8Zb3I2K2xSsIxDHD8MHlw8v
 BFX7QNobsxi9vjmENOmH8WcjWx8abtdNl0ndNmHcc3u2QyNEfRcdx8DIytQCVRSw
 gCyQVLgZIiedeZ84D6jmQu+RR668ztH+X6/QWWj5eHh6YlvtyqTPnuHe
 =VuFn
 -----END PGP SIGNATURE-----

Merge tag 'ceph-for-5.17-rc2' of git://github.com/ceph/ceph-client

Pull ceph fixes from Ilya Dryomov:
 "A ZERO_SIZE_PTR dereference fix from Xiubo and two fixes for async
  creates interacting with pool namespace-constrained OSD permissions
  from Jeff (marked for stable)"

* tag 'ceph-for-5.17-rc2' of git://github.com/ceph/ceph-client:
  ceph: set pool_ns in new inode layout for async creates
  ceph: properly put ceph_string reference after async create attempt
  ceph: put the requests/sessions when it fails to alloc memory
2022-01-28 18:36:42 +02:00
James Morse 297ae1eb23 arm64: cpufeature: List early Cortex-A510 parts as having broken dbm
Versions of Cortex-A510 before r0p3 are affected by a hardware erratum
where the hardware update of the dirty bit is not correctly ordered.

Add these cpus to the cpu_has_broken_dbm list.

Signed-off-by: James Morse <james.morse@arm.com>
Link: https://lore.kernel.org/r/20220125154040.549272-3-james.morse@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2022-01-28 16:15:46 +00:00
Linus Torvalds f6a26318e3 ocfs2: fix subdirectory registration with register_sysctl()
The kernel test robot reports that commit c42ff46f97 ("ocfs2: simplify
subdirectory registration with register_sysctl()") is broken, and
results in kernel warning messages like

  sysctl table check failed: fs/ocfs2/nm Not a file
  sysctl table check failed: fs/ocfs2/nm No proc_handler
  sysctl table check failed: fs/ocfs2/nm bogus .mode 0555

and in fact this was already reported back in linux-next, but nobody
seems to have reacted to that report.  Possibly that original report
only ever made it to the lkp list.

The problem seems to be that the simplification didn't actually go far
enough, and should have converted the whole directory path to the final
sysctl file, rather than just the two first components.

So take that last step.

Fixes: c42ff46f97 ("ocfs2: simplify subdirectory registration with register_sysctl()")
Reported-by: kernel test robot <oliver.sang@intel.com>
Link: https://lore.kernel.org/all/20220128065310.GF8421@xsang-OptiPlex-9020/
Link: https://lists.01.org/hyperkitty/list/lkp@lists.01.org/thread/KQ2F6TPJWMDVEXJM4WTUC4DU3EH3YJVT/
Tested-by: Jan Kara <jack@suse.cz>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-28 18:15:16 +02:00
Catalin Marinas df20597044 coresight: trbe: Workaround Cortex-A510 erratas
This pull request is providing arm64 definitions to support
 TRBE Cortex-A510 erratas.
 
 Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQFPBAABCgA5FiEEeTrpXvBwUkra1RYWo5FxFnwrV6EFAmHy7RkbHG1hdGhpZXUu
 cG9pcmllckBsaW5hcm8ub3JnAAoJEKORcRZ8K1ehmvEH/2O01bctGwhEtg7wRxdu
 b/pksZSJZkrTq7cUU/xRUzGEj38owoYb/QFle1+e1qMW8Lt5nI11xLLCuBxTTZFT
 zazoYnHHciKK5kiQSCK1cN4hTjGfL0dn/cEUkwGMA9PX6B8jG+WvMEHYXZkebt5b
 BV88QUNB5+S5PPZzF+UczLVQoZ1UmlwkoVyTpRQN97qunqOZ6C1esDgOeghAXTg4
 EKni3tl7IkkuDDsWvg4ez4hvnYbCbPaMaFqVI81n1NGHl2fhsKAa3GXKzj+wiG8H
 gQEXw0q8G8rxJ4Ik/K4/VApWGrqFFSCFCeho8GFqxputUkzGoCRZ1U6JPQIbFWrN
 lJM=
 =HLQt
 -----END PGP SIGNATURE-----

Merge tag 'trbe-cortex-a510-errata' of gitolite.kernel.org:pub/scm/linux/kernel/git/coresight/linux into for-next/fixes

coresight: trbe: Workaround Cortex-A510 erratas

This pull request is providing arm64 definitions to support
TRBE Cortex-A510 erratas.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>

* tag 'trbe-cortex-a510-errata' of gitolite.kernel.org:pub/scm/linux/kernel/git/coresight/linux:
  arm64: errata: Add detection for TRBE trace data corruption
  arm64: errata: Add detection for TRBE invalid prohibited states
  arm64: errata: Add detection for TRBE ignored system register writes
  arm64: Add Cortex-A510 CPU part definition
2022-01-28 16:14:06 +00:00
Linus Torvalds 4897e722b5 \n
-----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCAAdFiEEq1nRK9aeMoq1VSgcnJ2qBz9kQNkFAmHz0QsACgkQnJ2qBz9k
 QNkN+AgA6XqWHKYyElfgJFt1UqaoNMz/Faz9H/+PKiBNSTf6/+67D+V7DFz6jJrv
 dDwHNzfDg9kR+pbAAPwhl2jfnQoUlsr019Hrqa5HpWlj5geVpbdunYUzS2WOkwqD
 /m+brcLgPdKb2uIysj6wOh9B7wa8V9ksl3EjQvvwaHaU0p1YLUqidVXucYvs8DUo
 bgXNaj9GmeysxnmU+aILotWuuXH2vOP4Q2Uk4qz3rN6xW9eEXtpQ4y7gWBp/GA8y
 Ia8FtFdQdvlSDOJYMdPOTBu5RB7gY9ElrapvVaWNYtCWI/jRv666nZsLaERYNhLN
 uUsG4MWjYbOqW5XqFDbSOwbDqvMh5Q==
 =mEFA
 -----END PGP SIGNATURE-----

Merge tag 'fsnotify_for_v5.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

Pull fsnotify fixes from Jan Kara:
 "Fixes for userspace breakage caused by fsnotify changes ~3 years ago
  and one fanotify cleanup"

* tag 'fsnotify_for_v5.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  fsnotify: fix fsnotify hooks in pseudo filesystems
  fsnotify: invalidate dcache before IN_DELETE event
  fanotify: remove variable set but not used
2022-01-28 17:51:31 +02:00
Linus Torvalds c2b19fd753 \n
-----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCAAdFiEEq1nRK9aeMoq1VSgcnJ2qBz9kQNkFAmHz0I4ACgkQnJ2qBz9k
 QNkvkAf/fD0swq13rFWiMDo+Azj9BwdjTeK7kEhGBCw9rL3BchH+OTMgPmcdplTJ
 uzXVyWZ98hsCBY4Aclu3Grcy1Cj9A3+JW9FqrWbwWy8t583DuaV31UL99AXb/4sH
 xYAmMm9V9gO5ckIAffHzHcEyN+dHMj89zl8vAtxGnlwR6gZLE1wjB3AmWBlctJpE
 bWQWCpuJsW+7o7ky5hIQ2hQWLxb5OejdYtLu6Su4tM86xfMwi3pB0tzilJ6jorAH
 eH5LBt5pVDI+gYQY1WYoZTy4eQKM0lhVW3WplhbNJwkJUupNS5xCXFfwB8bUppwc
 +hyGn5G3GJZ2Ya+xALO3GfS8fX9ESQ==
 =dQRa
 -----END PGP SIGNATURE-----

Merge tag 'fs_for_v5.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

Pull udf and quota fixes from Jan Kara:
 "Fixes for crashes in UDF when inode expansion fails and one quota
  cleanup"

* tag 'fs_for_v5.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  quota: cleanup double word in comment
  udf: Restore i_lenAlloc when inode expansion fails
  udf: Fix NULL ptr deref when converting from inline format
2022-01-28 17:19:49 +02:00
Paolo Bonzini 17179d0068 KVM/arm64 fixes for 5.17, take #1
- Correctly update the shadow register on exception injection when
   running in nVHE mode
 
 - Correctly use the mm_ops indirection when performing cache invalidation
   from the page-table walker
 
 - Restrict the vgic-v3 workaround for SEIS to the two known broken
   implementations
 -----BEGIN PGP SIGNATURE-----
 
 iQJDBAABCgAtFiEEn9UcU+C1Yxj9lZw9I9DQutE9ekMFAmHzv5EPHG1hekBrZXJu
 ZWwub3JnAAoJECPQ0LrRPXpD0DcQAMF0hcKYxwuXi+UwQ8u5SsrpQQZ1BWC6euvB
 FFQiUPANXq/u0xM2kV+5FhjEfHqqjnh7nYLVKpBcetcvGSfWUnZlVI4DKI+5pdte
 PTa/minS5sq9BDZ/clRnnomNw0UwtH2OLeolg7+UAqBMihicddVBBU6IqvY1Nx+z
 F2qovZa3Qqb1EB+9+hPS+qGcjlguaBOEzrJ9uIaw532G1JD1K9hhMlabdhJhiJA3
 gWuUJO+cuYEdctli+OJb9g92zIDt0hVP+/1tndlbib5BUw6e2vkdyKF0+/7u77xr
 SDKNmUosvZt/fABZpv6ycgRszoKRjBCIC5takQCZI/l2QzZFbiP/414E8L0J/zLV
 PI8e1bs/H9pBF3c7WG+if/3jYs+D+/nYhkE+PeW3k5lxzsHo7XE5ei6mzoxzBusC
 l4c0QQ7lpwep4dOWm4oRxzE0/9IONgVKKlIKGBkpSbtznDkAToTWobAIFVeZj+nm
 BVxf+A6ddcnQSzXYa/FUsfV3ZEsJVPSs/DL6mBBJuG8lxNzZnabkt+ODfXuhyrXe
 6kGkF9+4HE9XyItieZVDUgRcZ9x57c+3q7A9b7Kl+Ds1Z+hsu0tVqghf5YVQAj3a
 4IkOBdPEtaGCSrJWxupX+oimCXqdNfbnOqf4VsO8l1O0O8WBRvYaqYL2RKR32kX2
 n3nzO/vE
 =BKqv
 -----END PGP SIGNATURE-----

Merge tag 'kvmarm-fixes-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for 5.17, take #1

- Correctly update the shadow register on exception injection when
  running in nVHE mode

- Correctly use the mm_ops indirection when performing cache invalidation
  from the page-table walker

- Restrict the vgic-v3 workaround for SEIS to the two known broken
  implementations
2022-01-28 07:45:15 -05:00
Hou Wenlong 6a0c61703e KVM: eventfd: Fix false positive RCU usage warning
Fix the following false positive warning:
 =============================
 WARNING: suspicious RCU usage
 5.16.0-rc4+ #57 Not tainted
 -----------------------------
 arch/x86/kvm/../../../virt/kvm/eventfd.c:484 RCU-list traversed in non-reader section!!

 other info that might help us debug this:

 rcu_scheduler_active = 2, debug_locks = 1
 3 locks held by fc_vcpu 0/330:
  #0: ffff8884835fc0b0 (&vcpu->mutex){+.+.}-{3:3}, at: kvm_vcpu_ioctl+0x88/0x6f0 [kvm]
  #1: ffffc90004c0bb68 (&kvm->srcu){....}-{0:0}, at: vcpu_enter_guest+0x600/0x1860 [kvm]
  #2: ffffc90004c0c1d0 (&kvm->irq_srcu){....}-{0:0}, at: kvm_notify_acked_irq+0x36/0x180 [kvm]

 stack backtrace:
 CPU: 26 PID: 330 Comm: fc_vcpu 0 Not tainted 5.16.0-rc4+
 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
 Call Trace:
  <TASK>
  dump_stack_lvl+0x44/0x57
  kvm_notify_acked_gsi+0x6b/0x70 [kvm]
  kvm_notify_acked_irq+0x8d/0x180 [kvm]
  kvm_ioapic_update_eoi+0x92/0x240 [kvm]
  kvm_apic_set_eoi_accelerated+0x2a/0xe0 [kvm]
  handle_apic_eoi_induced+0x3d/0x60 [kvm_intel]
  vmx_handle_exit+0x19c/0x6a0 [kvm_intel]
  vcpu_enter_guest+0x66e/0x1860 [kvm]
  kvm_arch_vcpu_ioctl_run+0x438/0x7f0 [kvm]
  kvm_vcpu_ioctl+0x38a/0x6f0 [kvm]
  __x64_sys_ioctl+0x89/0xc0
  do_syscall_64+0x3a/0x90
  entry_SYSCALL_64_after_hwframe+0x44/0xae

Since kvm_unregister_irq_ack_notifier() does synchronize_srcu(&kvm->irq_srcu),
kvm->irq_ack_notifier_list is protected by kvm->irq_srcu. In fact,
kvm->irq_srcu SRCU read lock is held in kvm_notify_acked_irq(), making it
a false positive warning. So use hlist_for_each_entry_srcu() instead of
hlist_for_each_entry_rcu().

Reviewed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Hou Wenlong <houwenlong93@linux.alibaba.com>
Message-Id: <f98bac4f5052bad2c26df9ad50f7019e40434512.1643265976.git.houwenlong.hwl@antgroup.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-28 07:38:27 -05:00
Vitaly Kuznetsov 6cbbaab60f KVM: nVMX: Allow VMREAD when Enlightened VMCS is in use
Hyper-V TLFS explicitly forbids VMREAD and VMWRITE instructions when
Enlightened VMCS interface is in use:

"Any VMREAD or VMWRITE instructions while an enlightened VMCS is
active is unsupported and can result in unexpected behavior.""

Windows 11 + WSL2 seems to ignore this, attempts to VMREAD VMCS field
0x4404 ("VM-exit interruption information") are observed. Failing
these attempts with nested_vmx_failInvalid() makes such guests
unbootable.

Microsoft confirms this is a Hyper-V bug and claims that it'll get fixed
eventually but for the time being we need a workaround. (Temporary) allow
VMREAD to get data from the currently loaded Enlightened VMCS.

Note: VMWRITE instructions remain forbidden, it is not clear how to
handle them properly and hopefully won't ever be needed.

Reviewed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20220112170134.1904308-6-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-28 07:38:26 -05:00
Vitaly Kuznetsov 892a42c10d KVM: nVMX: Implement evmcs_field_offset() suitable for handle_vmread()
In preparation to allowing reads from Enlightened VMCS from
handle_vmread(), implement evmcs_field_offset() to get the correct
read offset. get_evmcs_offset(), which is being used by KVM-on-Hyper-V,
is almost what's needed but a few things need to be adjusted. First,
WARN_ON() is unacceptable for handle_vmread() as any field can (in
theory) be supplied by the guest and not all fields are defined in
eVMCS v1. Second, we need to handle 'holes' in eVMCS (missing fields).
It also sounds like a good idea to WARN_ON() if such fields are ever
accessed by KVM-on-Hyper-V.

Implement dedicated evmcs_field_offset() helper.

No functional change intended.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20220112170134.1904308-5-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-28 07:38:26 -05:00
Vitaly Kuznetsov 2423a4c0d1 KVM: nVMX: Rename vmcs_to_field_offset{,_table}
vmcs_to_field_offset{,_table} may sound misleading as VMCS is an opaque
blob which is not supposed to be accessed directly. In fact,
vmcs_to_field_offset{,_table} are related to KVM defined VMCS12 structure.

Rename vmcs_field_to_offset() to get_vmcs12_field_offset() for clarity.

No functional change intended.

Reviewed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20220112170134.1904308-4-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-28 07:38:26 -05:00
Vitaly Kuznetsov 7a601e2cf6 KVM: nVMX: eVMCS: Filter out VM_EXIT_SAVE_VMX_PREEMPTION_TIMER
Enlightened VMCS v1 doesn't have VMX_PREEMPTION_TIMER_VALUE field,
PIN_BASED_VMX_PREEMPTION_TIMER is also filtered out already so it makes
sense to filter out VM_EXIT_SAVE_VMX_PREEMPTION_TIMER too.

Note, none of the currently existing Windows/Hyper-V versions are known
to enable 'save VMX-preemption timer value' when eVMCS is in use, the
change is aimed at making the filtering future proof.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20220112170134.1904308-3-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-28 07:38:25 -05:00
Vitaly Kuznetsov f80ae0ef08 KVM: nVMX: Also filter MSR_IA32_VMX_TRUE_PINBASED_CTLS when eVMCS
Similar to MSR_IA32_VMX_EXIT_CTLS/MSR_IA32_VMX_TRUE_EXIT_CTLS,
MSR_IA32_VMX_ENTRY_CTLS/MSR_IA32_VMX_TRUE_ENTRY_CTLS pair,
MSR_IA32_VMX_TRUE_PINBASED_CTLS needs to be filtered the same way
MSR_IA32_VMX_PINBASED_CTLS is currently filtered as guests may solely rely
on 'true' MSR data.

Note, none of the currently existing Windows/Hyper-V versions are known
to stumble upon the unfiltered MSR_IA32_VMX_TRUE_PINBASED_CTLS, the change
is aimed at making the filtering future proof.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20220112170134.1904308-2-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-28 07:38:25 -05:00
Paolo Bonzini b19c99b9f4 selftests: kvm: check dynamic bits against KVM_X86_XCOMP_GUEST_SUPP
Provide coverage for the new API.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-28 07:38:25 -05:00
Paolo Bonzini dd6e631220 KVM: x86: add system attribute to retrieve full set of supported xsave states
Because KVM_GET_SUPPORTED_CPUID is meant to be passed (by simple-minded
VMMs) to KVM_SET_CPUID2, it cannot include any dynamic xsave states that
have not been enabled.  Probing those, for example so that they can be
passed to ARCH_REQ_XCOMP_GUEST_PERM, requires a new ioctl or arch_prctl.
The latter is in fact worse, even though that is what the rest of the
API uses, because it would require supported_xcr0 to be moved from the
KVM module to the kernel just for this use.  In addition, the value
would be nonsensical (or an error would have to be returned) until
the KVM module is loaded in.

Therefore, to limit the growth of system ioctls, add a /dev/kvm
variant of KVM_{GET,HAS}_DEVICE_ATTR, and implement it in x86
with just one group (0) and attribute (KVM_X86_XCOMP_GUEST_SUPP).

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-28 07:33:32 -05:00
Sean Christopherson 56f289a8d2 KVM: x86: Add a helper to retrieve userspace address from kvm_device_attr
Add a helper to handle converting the u64 userspace address embedded in
struct kvm_device_attr into a userspace pointer, it's all too easy to
forget the intermediate "unsigned long" cast as well as the truncation
check.

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-28 07:32:00 -05:00
Mark Brown 9ae279ecab kselftest/arm64: Correct logging of FPSIMD register read via ptrace
There's a cut'n'paste error in the logging for our test for reading register
state back via ptrace, correctly say that we did a read instead of a write.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220124175527.3260234-3-broonie@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2022-01-28 11:30:51 +00:00
Mark Brown 50806fd914 kselftest/arm64: Skip VL_INHERIT tests for unsupported vector types
Currently we unconditionally test the ability to set the vector length
inheritance flag via ptrace meaning that we generate false failures on
systems that don't support SVE when we attempt to set the vector length
there. Check the hwcap and mark the tests as skipped when it's not present.

Fixes: 0ba1ce1e86 ("selftests: arm64: Add coverage of ptrace flags for SVE VL inheritance")
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220124175527.3260234-2-broonie@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2022-01-28 11:28:49 +00:00
Linus Torvalds 145d9b498f ATA fixes for 5.17.0-rc2
A single fix for 5.17-rc2, adding a missing resource allocation error
 check in the pata_platform driver, from Zhou.
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQSRPv8tYSvhwAzJdzjdoc3SxdoYdgUCYfO3zgAKCRDdoc3SxdoY
 doOtAQCJ3XBSGk3uDpemY7OD6BwluJRgJY9BhpjKxc0zHH1KfAD/Xe0Aj1nBcIDO
 Ee43ujOsm9ru3CD87CJTLX0xmV9qQQc=
 =NwD3
 -----END PGP SIGNATURE-----

Merge tag 'ata-5.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata

Pull ATA fix from Damien Le Moal:
 "A single fix for 5.17-rc2, adding a missing resource allocation error
  check in the pata_platform driver, from Zhou"

* tag 'ata-5.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
  ata: pata_platform: Fix a NULL pointer dereference in __pata_platform_probe()
2022-01-28 11:47:05 +02:00
Linus Torvalds 374630e3f9 hwmon fixes for v5.17-rc2
- Fix crash in nct6775 driver
 - Prevent divide by zero in adt7470 driver
 - Fix conditional compile warning in pmbus/ir38064 driver
 - Various minor fixes in lm90 driver
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEiHPvMQj9QTOCiqgVyx8mb86fmYEFAmHzhNAACgkQyx8mb86f
 mYGGMxAAiVuRy6/Zc9+j4bAgBfVdMwVf3Hct2P6LZwOmAB/mCF9iM3OJF0SI+skr
 2D8NxuW44VMW7alkJQIXNY65ZWzzYS+N3OHRvpyX3EB0X+XB4p2T52ly4klATCei
 g/2EPwvWGuMO/GQKLgqG0Scq2FC7btW6KmouvKOvGwL3Xwn7EQXaGFq9HmHjw+LU
 p7Jyr3R7ECbvaX2WGzOhYtrNVxJ/nShaSp5L0WeIX+4CyHSg3tCuUbrjYJHGE8rj
 nRlp2PkzMYFsepS3vMsMVHIoRgMxgRN3V2Yif4fYur6r+7pABr986RQ4YFy3SREV
 h3I9yKAASRo24vwqr6B49bOMH+ed5p4iywhRKBR1a3bhMlko7Yqr4jU+a3zLeYqL
 IQreFmmOa7CETuqQoZDBjC1y5fBXCraNaY8iVFlAXoMVRZPcjTjgU0qa+sk2MjWU
 sbnVN1L0xu0i2S9mvdSpj8IWs6WPS0cinrP95uw12XhVEc6NUHsnqkc3AXZuqCFo
 YjFahGQvKDV+rRYNzB/WL63r2VEuTI+rsB40qJ+I+VcL7iQbxvLzCdiax+r2zg5U
 kVHqBadoUVdFhkB3iBRyxi0oSVmeLygCNTwJW5GePMeeHhS3ggPYtXavudR14FSp
 UijDCXKR4rlvt3v59oGQ0rtKe9Q+yF2gDYEAgh96fF1yaANQgf8=
 =prEo
 -----END PGP SIGNATURE-----

Merge tag 'hwmon-for-v5.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:

 - Fix crash in nct6775 driver

 - Prevent divide by zero in adt7470 driver

 - Fix conditional compile warning in pmbus/ir38064 driver

 - Various minor fixes in lm90 driver

* tag 'hwmon-for-v5.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (nct6775) Fix crash in clear_caseopen
  hwmon: (adt7470) Prevent divide by zero in adt7470_fan_write()
  hwmon: (pmbus/ir38064) Mark ir38064_of_match as __maybe_unused
  hwmon: (lm90) Fix sysfs and udev notifications
  hwmon: (lm90) Mark alert as broken for MAX6646/6647/6649
  hwmon: (lm90) Mark alert as broken for MAX6680
  hwmon: (lm90) Mark alert as broken for MAX6654
  hwmon: (lm90) Re-enable interrupts after alert clears
  hwmon: (lm90) Reduce maximum conversion rate for G781
2022-01-28 09:48:20 +02:00
Linus Torvalds 82b550fa99 drm fixes for 5.17-rc2
atomic:
 - fix CRTC handling during modeset
 
 privcy-screen:
 - honor acpi=off
 
 ttm:
 - build fix for um
 
 panel:
 - add oreientation quirk for 1NetBook OneXPlayer
 
 amdgpu:
 - Proper fix for otg synchronization logic regression
 - DCN3.01 fixes
 - Filter out secondary radeon PCI IDs
 - udelay fixes
 - Fix a memory leak in an error path
 
 msm:
 - parameter check fixes
 - put_device balancing
 - idle/suspend fixes
 
 etnaviv:
 - relax submit size checks
 
 vc4:
 - fix potential deadlock in DSI code
 
 ast:
 - revert 1600x900 mode change
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmHzf38ACgkQDHTzWXnE
 hr4hYQ//VDkavqpF1mATcC1AjuDN8cT1JJaXqS4hkx3MUxqXKsNLBX6pBrYT+WFn
 nGFyxEiCwqQWuy+QlA7H/U6vZ6Zr9mpWbCV+kA7UdUa8BYrQMOy0A5KYmznA9VOL
 BmITgga6ubX7ZKgSDop0FVrr3fK2lMbFXckPK9IHZpAJeynSmObZ29mNFMc5w6Vr
 dVBCcYvJob+OvkJMcfya8znOlHAfRN4y9DuNTv1LY4ZvQzFc36MD9gc5eOhtuEMb
 Pay+kEeUATgCcR/4rZLItAWVW19KY7aVOvcHyog2h2z2vZKcPyGuB2W1mv4VQxtl
 HWpbmFP1STkDPvWPkhpfyX1MDYBiIBXVqvTpnAUb3NtSZNC4qWMVkM1ILjnjXkKo
 EGBYSvxLvMxO13y64nkaTnORUts6BnsNi0+o7sh0AfrNbjJP4pomv659+HSO3vM6
 4ANG5z6R0tBBTKmAE7WTVZJM8jp4zq5xOveJ7QvP++iIsHDpBqtLrbfeBCqSZ9Mo
 XjN9migkJHGg1xsg4YVm7Cr13wB7ltSWxgIb3GjfBd5TsHFBs787s4+S27Zy0ae2
 89YOJCOYlRNC38G8yNdPhX/j88kef/9npGblBulIIiauRjd1KQWqeFXra1jKGogI
 cNevwrxmWwsoMUXsgbqgCR846uqOaUc/4bmKqgerb4PYCZ62DYE=
 =mom4
 -----END PGP SIGNATURE-----

Merge tag 'drm-fixes-2022-01-28' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "This week's regular normal fixes. amdgpu and msm make up the bulk of
  it, with a scattering of fixes elsewhere.

  atomic:
   - fix CRTC handling during modeset

  privcy-screen:
   - honor acpi=off

  ttm:
   - build fix for um

  panel:
   - add orientation quirk for 1NetBook OneXPlayer

  amdgpu:
   - Proper fix for otg synchronization logic regression
   - DCN3.01 fixes
   - Filter out secondary radeon PCI IDs
   - udelay fixes
   - Fix a memory leak in an error path

  msm:
   - parameter check fixes
   - put_device balancing
   - idle/suspend fixes

  etnaviv:
   - relax submit size checks

  vc4:
   - fix potential deadlock in DSI code

  ast:
   - revert 1600x900 mode change"

* tag 'drm-fixes-2022-01-28' of git://anongit.freedesktop.org/drm/drm: (25 commits)
  drm/privacy-screen: honor acpi=off in detect_thinkpad_privacy_screen
  Revert "drm/ast: Support 1600x900 with 108MHz PCLK"
  drm/amdgpu/display: Remove t_srx_delay_us.
  drm/amd/display: Wrap dcn301_calculate_wm_and_dlg for FPU.
  drm/amd/display: Fix FP start/end for dcn30_internal_validate_bw.
  drm/amd/display/dc/calcs/dce_calcs: Fix a memleak in calculate_bandwidth()
  drm/amdgpu/display: use msleep rather than udelay for long delays
  drm/amdgpu/display: adjust msleep limit in dp_wait_for_training_aux_rd_interval
  drm/amdgpu: filter out radeon secondary ids as well
  drm/amd/display: change FIFO reset condition to embedded display only
  drm/amd/display: Correct MPC split policy for DCN301
  drm/amd/display: Fix for otg synchronization logic
  drm/etnaviv: relax submit size limits
  drm/msm/gpu: Cancel idle/boost work on suspend
  drm/msm/gpu: Wait for idle before suspending
  drm/atomic: Add the crtc to affected crtc only if uapi.enable = true
  drm/msm/dsi: invalid parameter check in msm_dsi_phy_enable
  drm/msm/a6xx: Add missing suspend_count increment
  drm/msm: Fix wrong size calculation
  drm/msm/dpu: invalid parameter check in dpu_setup_dspp_pcc
  ...
2022-01-28 09:43:00 +02:00
Dave Airlie db5aa1497d Merge tag 'amd-drm-fixes-5.17-2022-01-26' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amd-drm-fixes-5.17-2022-01-26:

amdgpu:
- Proper fix for otg synchronization logic regression
- DCN3.01 fixes
- Filter out secondary radeon PCI IDs
- udelay fixes
- Fix a memory leak in an error path

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220127041006.5695-1-alexander.deucher@amd.com
2022-01-28 14:59:44 +10:00
Dave Airlie b1d83f4c94 Merge branch 'etnaviv/fixes' of https://git.pengutronix.de/git/lst/linux into drm-fixes
- relax submit size checks.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Lucas Stach <l.stach@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/8c2cb3e3a702be86db9d43ca8927b6b78ac2b1d2.camel@pengutronix.de
2022-01-28 14:56:37 +10:00
Dave Airlie 52fa904e51 Merge tag 'drm-msm-fixes-2022-01-25' of https://gitlab.freedesktop.org/drm/msm into drm-fixes
A few msm fixes.
- parameter checks
- put_device balancing
- idle/suspend fixes

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGvAfsgtr==VM4wixAC_hSTuV=eNWXxX=BhZqQrbxHjKgg@mail.gmail.com
2022-01-28 14:52:41 +10:00
Dave Airlie 2fd0e5fb4b * drm/ast: Revert 1600x800 with 108MHz PCLK
* drm/atomic: fix CRTC handling during modeset
  * drm/privacy-screen: Honor acpi=off
  * drm/ttm: build fix for ARCH=um
 -----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCAAdFiEEchf7rIzpz2NEoWjlaA3BHVMLeiMFAmHyX8cACgkQaA3BHVML
 eiN2ywgAkE0eagDfPRsDnu8n1YHcJgRahxWIEHpAD1B8BPAgRisZXtTPARsTKypW
 VzOhcSF8w+QvMA+Sr+DrhAfwGceALbGv55hhPXcUF17Ux8DA2a+v9B+jkkfbNIk9
 VivSzx50uekS9S4QnTjvEZYb6A3/FEVcIvGmjiMS93+W+T0v0QYuY/v6wGtfTbUJ
 MawHkcBwrIUF9g5ZEpwDZ9mr0lfEtxr3cwqfdRSBuq/f5weLKzGzFHLP4d8qC0gf
 59EvY+wpNgZ1o//xhzp+s0VimEu3JDYidtTbS9Ke9JQAjo4j0thD766Os8TreOyn
 BAxrI4WHNIVO2+6rKXmNtPG/5RIAjQ==
 =oqv5
 -----END PGP SIGNATURE-----

Merge tag 'drm-misc-fixes-2022-01-27' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

 * drm/ast: Revert 1600x800 with 108MHz PCLK
 * drm/atomic: fix CRTC handling during modeset
 * drm/privacy-screen: Honor acpi=off
 * drm/ttm: build fix for ARCH=um

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

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/YfJgH9fz+oo7YSXd@linux-uq9g.fritz.box
2022-01-28 14:46:18 +10:00
Dave Airlie 23ecd4c135 * vc4: Fix potential deadlock in DSI code
* panel: Add orientation quirk for 1Netbook OneXPlayer
 -----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCAAdFiEEchf7rIzpz2NEoWjlaA3BHVMLeiMFAmHqbksACgkQaA3BHVML
 eiMCrQgAkIVwT6+2S41wd4VNyhz216A37JeEpXMhxktg9Vj5naJ03oEJzbrZ27hE
 OZ/CV/AVWnePIDGcXwSTWEKgCQ80/IGAzMb3l3mJjuAPt2wkSurOCNLywYVusmFT
 o0sKoCeRPbVM0d8UB+OyxbxoM7k4EvRExN6I1hXpq16qtjGuFTtxn8x1dtoaV53Z
 FLnDsRgcQ1V7/HiT02yWcWw11yjaEqjzgXUpQOMd1XkKQYqNz9bJaCCkuW7ClZ9p
 A3lGuVQDM/Is/CHY9JJVmh7S3nI3qSuCfxLvRjRxADpsM6MJK3V7gF1GOJBzqV9G
 xPrQ3h0au3G/eUf8CbiKKv/D4AF5dQ==
 =IE6H
 -----END PGP SIGNATURE-----

Merge tag 'drm-misc-next-fixes-2022-01-21' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

 * vc4: Fix potential deadlock in DSI code
 * panel: Add orientation quirk for 1Netbook OneXPlayer

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

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/Yepuhj+Ks+IyJ9Dp@linux-uq9g
2022-01-28 14:37:46 +10:00
Tom Zanussi 67ab5eb71b tracing: Don't inc err_log entry count if entry allocation fails
tr->n_err_log_entries should only be increased if entry allocation
succeeds.

Doing it when it fails won't cause any problems other than wasting an
entry, but should be fixed anyway.

Link: https://lkml.kernel.org/r/cad1ab28f75968db0f466925e7cba5970cec6c29.1643319703.git.zanussi@kernel.org

Cc: stable@vger.kernel.org
Fixes: 2f754e771b ("tracing: Don't inc err_log entry count if entry allocation fails")
Signed-off-by: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-01-27 19:15:49 -05:00
Tom Zanussi 097f1eefed tracing: Propagate is_signed to expression
During expression parsing, a new expression field is created which
should inherit the properties of the operands, such as size and
is_signed.

is_signed propagation was missing, causing spurious errors with signed
operands.  Add it in parse_expr() and parse_unary() to fix the problem.

Link: https://lkml.kernel.org/r/f4dac08742fd7a0920bf80a73c6c44042f5eaa40.1643319703.git.zanussi@kernel.org

Cc: stable@vger.kernel.org
Fixes: 100719dcef ("tracing: Add simple expression support to hist triggers")
Reported-by: Yordan Karadzhov <ykaradzhov@vmware.com>
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=215513
Signed-off-by: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-01-27 19:15:49 -05:00
Tom Zanussi b59f2f2b86 tracing: Fix smatch warning for do while check in event_hist_trigger_parse()
The patch ec5ce0987541: "tracing: Allow whitespace to surround hist
trigger filter" from Jan 15, 2018, leads to the following Smatch
static checker warning:

    kernel/trace/trace_events_hist.c:6199 event_hist_trigger_parse()
    warn: 'p' can't be NULL.

Since p is always checked for a NULL value at the top of loop and
nothing in the rest of the loop will set it to NULL, the warning
is correct and might as well be 1 to silence the warning.

Link: https://lkml.kernel.org/r/a1d4c79766c0cf61e20438dc35244d216633fef6.1643319703.git.zanussi@kernel.org

Fixes: ec5ce09875 ("tracing: Allow whitespace to surround hist trigger filter")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-01-27 19:15:48 -05:00
Tom Zanussi 798a5b6c19 tracing: Fix smatch warning for null glob in event_hist_trigger_parse()
The recent rename of event_hist_trigger_parse() caused smatch
re-evaluation of trace_events_hist.c and as a result an old warning
was found:

    kernel/trace/trace_events_hist.c:6174 event_hist_trigger_parse()
    error: we previously assumed 'glob' could be null (see line 6166)

glob should never be null (and apparently smatch can also figure that
out and skip the warning when using the cross-function DB (but which
can't be used with a 0day build as it takes too much time to
generate)).

Nonetheless for clarity, remove the test but add a WARN_ON() in case
the code ever changes.

Link: https://lkml.kernel.org/r/96925e5c1f116654ada7ea0613d930b1266b5e1c.1643319703.git.zanussi@kernel.org

Fixes: f404da6e1d ("tracing: Add 'last error' error facility for hist triggers")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-01-27 19:15:47 -05:00
Shuah Khan aa814c51ab tools/tracing: Update Makefile to build rtla
Update tracing Makefile to build/install/clean rtla tragets.

Link: https://lkml.kernel.org/r/20220126002234.79337-1-skhan@linuxfoundation.org

Reviewed-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-01-27 19:15:47 -05:00
Shuah Khan 2201aea114 rtla: Make doc build optional
rtla build fails due to doc build dependency on rst2man. Make
doc build optional so rtla could be built without docs. Leave
the install dependency on doc_install alone.

Link: https://lkml.kernel.org/r/20220126001301.79096-1-skhan@linuxfoundation.org

Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-01-27 19:15:46 -05:00
Kees Cook c6d777acdf tracing/perf: Avoid -Warray-bounds warning for __rel_loc macro
As done for trace_events.h, also fix the __rel_loc macro in perf.h,
which silences the -Warray-bounds warning:

In file included from ./include/linux/string.h:253,
                 from ./include/linux/bitmap.h:11,
                 from ./include/linux/cpumask.h:12,
                 from ./include/linux/mm_types_task.h:14,
                 from ./include/linux/mm_types.h:5,
                 from ./include/linux/buildid.h:5,
                 from ./include/linux/module.h:14,
                 from samples/trace_events/trace-events-sample.c:2:
In function '__fortify_strcpy',
    inlined from 'perf_trace_foo_rel_loc' at samples/trace_events/./trace-events-sample.h:519:1:
./include/linux/fortify-string.h:47:33: warning: '__builtin_strcpy' offset 12 is out of the bounds [
0, 4] [-Warray-bounds]
   47 | #define __underlying_strcpy     __builtin_strcpy
      |                                 ^
./include/linux/fortify-string.h:445:24: note: in expansion of macro '__underlying_strcpy'
  445 |                 return __underlying_strcpy(p, q);
      |                        ^~~~~~~~~~~~~~~~~~~

Also make __data struct member a proper flexible array to avoid future
problems.

Link: https://lkml.kernel.org/r/20220125220037.2738923-1-keescook@chromium.org

Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Fixes: 55de2c0b56 ("tracing: Add '__rel_loc' using trace event macros")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-01-27 19:15:45 -05:00
Masami Hiramatsu 58c5724ec2 tracing: Avoid -Warray-bounds warning for __rel_loc macro
Since -Warray-bounds checks the destination size from the type of given
pointer, __assign_rel_str() macro gets warned because it passes the
pointer to the 'u32' field instead of 'trace_event_raw_*' data structure.
Pass the data address calculated from the 'trace_event_raw_*' instead of
'u32' __rel_loc field.

Link: https://lkml.kernel.org/r/20220125233154.dac280ed36944c0c2fe6f3ac@kernel.org

Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
[ This did not fix the warning, but is still a nice clean up ]
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-01-27 19:15:45 -05:00
Xiaoke Wang e629e7b525 tracing/histogram: Fix a potential memory leak for kstrdup()
kfree() is missing on an error path to free the memory allocated by
kstrdup():

  p = param = kstrdup(data->params[i], GFP_KERNEL);

So it is better to free it via kfree(p).

Link: https://lkml.kernel.org/r/tencent_C52895FD37802832A3E5B272D05008866F0A@qq.com

Cc: stable@vger.kernel.org
Fixes: d380dcde9a ("tracing: Fix now invalid var_ref_vals assumption in trace action")
Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-01-27 19:15:44 -05:00
Steven Rostedt (Google) 4ed308c445 ftrace: Have architectures opt-in for mcount build time sorting
First S390 complained that the sorting of the mcount sections at build
time caused the kernel to crash on their architecture. Now PowerPC is
complaining about it too. And also ARM64 appears to be having issues.

It may be necessary to also update the relocation table for the values
in the mcount table. Not only do we have to sort the table, but also
update the relocations that may be applied to the items in the table.

If the system is not relocatable, then it is fine to sort, but if it is,
some architectures may have issues (although x86 does not as it shifts all
addresses the same).

Add a HAVE_BUILDTIME_MCOUNT_SORT that an architecture can set to say it is
safe to do the sorting at build time.

Also update the config to compile in build time sorting in the sorttable
code in scripts/ to depend on CONFIG_BUILDTIME_MCOUNT_SORT.

Link: https://lore.kernel.org/all/944D10DA-8200-4BA9-8D0A-3BED9AA99F82@linux.ibm.com/
Link: https://lkml.kernel.org/r/20220127153821.3bc1ac6e@gandalf.local.home

Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Yinan Liu <yinan@linux.alibaba.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Reported-by: Sachin Sant <sachinp@linux.ibm.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com> [arm64]
Tested-by: Sachin Sant <sachinp@linux.ibm.com>
Fixes: 72b3942a17 ("scripts: ftrace - move the sort-processing in ftrace_init")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-01-27 19:15:44 -05:00
Anshuman Khandual 708e8af492 arm64: errata: Add detection for TRBE trace data corruption
TRBE implementations affected by Arm erratum #1902691 might corrupt trace
data or deadlock, when it's being written into the memory. So effectively
TRBE is broken and hence cannot be used to capture trace data. This adds
a new errata ARM64_ERRATUM_1902691 in arm64 errata framework.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Suzuki Poulose <suzuki.poulose@arm.com>
Cc: coresight@lists.linaro.org
Cc: linux-doc@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/1643120437-14352-5-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
2022-01-27 12:01:53 -07:00
Anshuman Khandual 3bd94a8759 arm64: errata: Add detection for TRBE invalid prohibited states
TRBE implementations affected by Arm erratum #2038923 might get TRBE into
an inconsistent view on whether trace is prohibited within the CPU. As a
result, the trace buffer or trace buffer state might be corrupted. This
happens after TRBE buffer has been enabled by setting TRBLIMITR_EL1.E,
followed by just a single context synchronization event before execution
changes from a context, in which trace is prohibited to one where it isn't,
or vice versa. In these mentioned conditions, the view of whether trace is
prohibited is inconsistent between parts of the CPU, and the trace buffer
or the trace buffer state might be corrupted. This adds a new errata
ARM64_ERRATUM_2038923 in arm64 errata framework.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Suzuki Poulose <suzuki.poulose@arm.com>
Cc: coresight@lists.linaro.org
Cc: linux-doc@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/1643120437-14352-4-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
2022-01-27 12:01:53 -07:00
Anshuman Khandual 607a9afaae arm64: errata: Add detection for TRBE ignored system register writes
TRBE implementations affected by Arm erratum #2064142 might fail to write
into certain system registers after the TRBE has been disabled. Under some
conditions after TRBE has been disabled, writes into certain TRBE registers
TRBLIMITR_EL1, TRBPTR_EL1, TRBBASER_EL1, TRBSR_EL1 and TRBTRG_EL1 will be
ignored and not be effected. This adds a new errata ARM64_ERRATUM_2064142
in arm64 errata framework.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Suzuki Poulose <suzuki.poulose@arm.com>
Cc: coresight@lists.linaro.org
Cc: linux-doc@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/1643120437-14352-3-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
2022-01-27 12:01:53 -07:00
Anshuman Khandual 53960faf2b arm64: Add Cortex-A510 CPU part definition
Add the CPU Partnumbers for the new Arm designs.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Suzuki Poulose <suzuki.poulose@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/1643120437-14352-2-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
2022-01-27 12:01:53 -07:00
Linus Torvalds 23a46422c5 Networking fixes for 5.17-rc2, including fixes from netfilter and can.
Current release - new code bugs:
 
  - tcp: add a missing sk_defer_free_flush() in tcp_splice_read()
 
  - tcp: add a stub for sk_defer_free_flush(), fix CONFIG_INET=n
 
  - nf_tables: set last expression in register tracking area
 
  - nft_connlimit: fix memleak if nf_ct_netns_get() fails
 
  - mptcp: fix removing ids bitmap setting
 
  - bonding: use rcu_dereference_rtnl when getting active slave
 
  - fix three cases of sleep in atomic context in drivers: lan966x, gve
 
  - handful of build fixes for esoteric drivers after netdev->dev_addr
    was made const
 
 Previous releases - regressions:
 
  - revert "ipv6: Honor all IPv6 PIO Valid Lifetime values", it broke
    Linux compatibility with USGv6 tests
 
  - procfs: show net device bound packet types
 
  - ipv4: fix ip option filtering for locally generated fragments
 
  - phy: broadcom: hook up soft_reset for BCM54616S
 
 Previous releases - always broken:
 
  - ipv4: raw: lock the socket in raw_bind()
 
  - ipv4: decrease the use of shared IPID generator to decrease the
    chance of attackers guessing the values
 
  - procfs: fix cross-netns information leakage in /proc/net/ptype
 
  - ethtool: fix link extended state for big endian
 
  - bridge: vlan: fix single net device option dumping
 
  - ping: fix the sk_bound_dev_if match in ping_lookup
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE6jPA+I1ugmIBA4hXMUZtbf5SIrsFAmHy4mMACgkQMUZtbf5S
 IrvOZg/9HyOFAJrCYBlgA3zskHBdqYOGn9M3LCIevBcrCzQeigT+U1uWCINfBn+H
 DmsljeYKTicHZ38+HjdNXmzdnMqHtU+iJl4Ep1mcDNywygofW8JcS2Nf0n6Y+hK6
 nzyEa23DBt9UAiLmGXUTIoJwEhDRbuL/eH1/ZkkPLG7GtShtEDAKHg+dJBgHbYgJ
 0MQs3Q4s6AQ1PYOC0Z0zByhpSrAo2c4X/tr6g2ExNxU0vnydUbjIME0a5clFULr+
 ziVeOo4e83FINPaZiYAXEDbMGUC0z+rp1RoGsgRCdTnixi5BclkmEeGRaChYJHTZ
 T7tfIC2H0vZHu5/pAXFqwEHiRbminLv9jLkvA1/J67jbnpoNWTLD2jkuIWFlaY/Z
 xDm7LnVBB1CdLmXYo2ItSC/8ws9GANpJOq/vFvm+uOYZNKUVctfQ5viA3+hOSULC
 6BJHC0m5UminHZPVge9s1XZClarHK4jMMTH9Du2sHLsl3fedNxbgvcVPFdHswLdF
 uYiUGMSrIXuQjXw6SNmR4/voJgzikvYhT+jwMn4vTeWoFQFi5eNUch0MPfUImlXG
 e3T6WJHrOY3yJFyWQQ9GGLStchD72+iGq2uWLfOIyu9NRKCNBj4Kkm3bUvfqYp5b
 d5sP/nl93o3um4WskxB/fDLyhSXWjprgM9mKI45ilPhUC8bWQyo=
 =mwR3
 -----END PGP SIGNATURE-----

Merge tag 'net-5.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

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

  Current release - new code bugs:

   - tcp: add a missing sk_defer_free_flush() in tcp_splice_read()

   - tcp: add a stub for sk_defer_free_flush(), fix CONFIG_INET=n

   - nf_tables: set last expression in register tracking area

   - nft_connlimit: fix memleak if nf_ct_netns_get() fails

   - mptcp: fix removing ids bitmap setting

   - bonding: use rcu_dereference_rtnl when getting active slave

   - fix three cases of sleep in atomic context in drivers: lan966x, gve

   - handful of build fixes for esoteric drivers after netdev->dev_addr
     was made const

  Previous releases - regressions:

   - revert "ipv6: Honor all IPv6 PIO Valid Lifetime values", it broke
     Linux compatibility with USGv6 tests

   - procfs: show net device bound packet types

   - ipv4: fix ip option filtering for locally generated fragments

   - phy: broadcom: hook up soft_reset for BCM54616S

  Previous releases - always broken:

   - ipv4: raw: lock the socket in raw_bind()

   - ipv4: decrease the use of shared IPID generator to decrease the
     chance of attackers guessing the values

   - procfs: fix cross-netns information leakage in /proc/net/ptype

   - ethtool: fix link extended state for big endian

   - bridge: vlan: fix single net device option dumping

   - ping: fix the sk_bound_dev_if match in ping_lookup"

* tag 'net-5.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (86 commits)
  net: bridge: vlan: fix memory leak in __allowed_ingress
  net: socket: rename SKB_DROP_REASON_SOCKET_FILTER
  ipv4: remove sparse error in ip_neigh_gw4()
  ipv4: avoid using shared IP generator for connected sockets
  ipv4: tcp: send zero IPID in SYNACK messages
  ipv4: raw: lock the socket in raw_bind()
  MAINTAINERS: add missing IPv4/IPv6 header paths
  MAINTAINERS: add more files to eth PHY
  net: stmmac: dwmac-sun8i: use return val of readl_poll_timeout()
  net: bridge: vlan: fix single net device option dumping
  net: stmmac: skip only stmmac_ptp_register when resume from suspend
  net: stmmac: configure PTP clock source prior to PTP initialization
  Revert "ipv6: Honor all IPv6 PIO Valid Lifetime values"
  connector/cn_proc: Use task_is_in_init_pid_ns()
  pid: Introduce helper task_is_in_init_pid_ns()
  gve: Fix GFP flags when allocing pages
  net: lan966x: Fix sleep in atomic context when updating MAC table
  net: lan966x: Fix sleep in atomic context when injecting frames
  ethernet: seeq/ether3: don't write directly to netdev->dev_addr
  ethernet: 8390/etherh: don't write directly to netdev->dev_addr
  ...
2022-01-27 20:58:39 +02:00
Paul Menzel 854d0982ee docs/vm: Fix typo in *harden*
Fixes: df4e817b71 ("mm: page table check")
Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de>
Link: https://lore.kernel.org/r/20220117111338.115455-1-pmenzel@molgen.mpg.de
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-27 11:22:34 -07:00
Pali Rohár 573fe46e39 Documentation: arm: marvell: Extend Avanta list
Include another two SoCs from Avanta family.

Signed-off-by: Pali Rohár <pali@kernel.org>
Link: https://lore.kernel.org/r/20220121115804.28824-1-pali@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-27 11:22:34 -07:00
Takahiro Itazuri 10855b45a4 docs: fix typo in Documentation/kernel-hacking/locking.rst
Change copy_from_user*( to copy_from_user() .

Signed-off-by: Takahiro Itazuri <itazur@amazon.com>
Link: https://lore.kernel.org/r/20220124081447.34066-1-itazur@amazon.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-27 11:22:33 -07:00
Jonathan Corbet 941518d653 docs: Hook the RTLA documents into the kernel docs build
The RTLA documents were added to Documentation/ but never hooked into the
rest of the docs build, leading to a bunch of warnings like:

  Documentation/tools/rtla/rtla-osnoise.rst: WARNING: document isn't included in any toctree

Add some basic glue to wire these documents into the build so that they are
available with the rest of the rendered docs.  No attempt has been made to
turn the RTLA docs into proper RST files rather than warmed-over man pages;
that is an exercise for the future.

Fixes: d40d48e1f1 ("rtla: Add Documentation")
Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Link: https://lore.kernel.org/r/877dau555q.fsf@meer.lwn.net
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-27 11:20:39 -07:00
Usama Arif f6133fbd37 io_uring: remove unused argument from io_rsrc_node_alloc
io_ring_ctx is not used in the function.

Signed-off-by: Usama Arif <usama.arif@bytedance.com>
Link: https://lore.kernel.org/r/20220127140444.4016585-1-usama.arif@bytedance.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-01-27 10:18:53 -07:00
Laibin Qiu 10825410b9 blk-mq: Fix wrong wakeup batch configuration which will cause hang
Commit 180dccb0db ("blk-mq: fix tag_get wait task can't be
awakened") will recalculate wake_batch when incrementing or decrementing
active_queues to avoid wake_batch > hctx_max_depth. At the same time, in
order to not affect performance as much as possible, the minimum wakeup
batch is set to 4. But when the QD is small (such as QD=1), if inc or dec
active_queues increases wakeup batch, that can lead to a hang:

Fix this problem with the following strategies:
QD          :  >= 32 | < 32
---------------------------------
wakeup batch:  8~4   | 3~1

Fixes: 180dccb0db ("blk-mq: fix tag_get wait task can't be awakened")
Link: https://lore.kernel.org/linux-block/78cafe94-a787-e006-8851-69906f0c2128@huawei.com/T/#t
Reported-by: Alex Xu (Hello71) <alex_y_xu@yahoo.ca>
Signed-off-by: Laibin Qiu <qiulaibin@huawei.com>
Tested-by: Alex Xu (Hello71) <alex_y_xu@yahoo.ca>
Link: https://lore.kernel.org/r/20220127100047.1763746-1-qiulaibin@huawei.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-01-27 10:15:32 -07:00
Tim Yi fd20d97383 net: bridge: vlan: fix memory leak in __allowed_ingress
When using per-vlan state, if vlan snooping and stats are disabled,
untagged or priority-tagged ingress frame will go to check pvid state.
If the port state is forwarding and the pvid state is not
learning/forwarding, untagged or priority-tagged frame will be dropped
but skb memory is not freed.
Should free skb when __allowed_ingress returns false.

Fixes: a580c76d53 ("net: bridge: vlan: add per-vlan state")
Signed-off-by: Tim Yi <tim.yi@pica8.com>
Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Link: https://lore.kernel.org/r/20220127074953.12632-1-tim.yi@pica8.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-01-27 09:01:25 -08:00
Menglong Dong 364df53c08 net: socket: rename SKB_DROP_REASON_SOCKET_FILTER
Rename SKB_DROP_REASON_SOCKET_FILTER, which is used
as the reason of skb drop out of socket filter before
it's part of a released kernel. It will be used for
more protocols than just TCP in future series.

Signed-off-by: Menglong Dong <imagedong@tencent.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/all/20220127091308.91401-2-imagedong@tencent.com/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-01-27 08:45:13 -08:00