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This will be used to signal an error to the userspace, in case
the vendor code failed during handling of this msr. (e.g -ENOMEM)
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20201001112954.6258-4-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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1. when smc feature bit isn't mapped,
the feature state isn't showed on sysfs node of pp_features.
2. add pp_features table title
Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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This will allow the KVM to report such errors (e.g -ENOMEM)
to the userspace.
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20201001112954.6258-3-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Return 1 on errors that are caused by wrong guest behavior
(which will inject #GP to the guest)
And return a negative error value on issues that are
the kernel's fault (e.g -ENOMEM)
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20201001112954.6258-2-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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These should be const, so make it so.
Signed-off-by: Joe Perches <joe@perches.com>
Message-Id: <ed95eef4f10fc1317b66936c05bc7dd8f943a6d5.1601770305.git.joe@perches.com>
Reviewed-by: Ben Gardon <bgardon@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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As vcpu->arch.cpuid_entries is now allocated dynamically, the only
remaining use for KVM_MAX_CPUID_ENTRIES is to check KVM_SET_CPUID/
KVM_SET_CPUID2 input for sanity. Since it was reported that the
current limit (80) is insufficient for some CPUs, bump
KVM_MAX_CPUID_ENTRIES and use an arbitrary value '256' as the new
limit.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20201001130541.1398392-4-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The current limit for guest CPUID leaves (KVM_MAX_CPUID_ENTRIES, 80)
is reported to be insufficient but before we bump it let's switch to
allocating vcpu->arch.cpuid_entries[] array dynamically. Currently,
'struct kvm_cpuid_entry2' is 40 bytes so vcpu->arch.cpuid_entries is
3200 bytes which accounts for 1/4 of the whole 'struct kvm_vcpu_arch'
but having it pre-allocated (for all vCPUs which we also pre-allocate)
gives us no real benefits.
Another plus of the dynamic allocation is that we now do kvm_check_cpuid()
check before we assign anything to vcpu->arch.cpuid_nent/cpuid_entries so
no changes are made in case the check fails.
Opportunistically remove unneeded 'out' labels from
kvm_vcpu_ioctl_set_cpuid()/kvm_vcpu_ioctl_set_cpuid2() and return
directly whenever possible.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20201001130541.1398392-3-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
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As a preparatory step to allocating vcpu->arch.cpuid_entries dynamically
make kvm_check_cpuid() check work with an arbitrary 'struct kvm_cpuid_entry2'
array.
Currently, when kvm_check_cpuid() fails we reset vcpu->arch.cpuid_nent to
0 and this is kind of weird, i.e. one would expect CPUIDs to remain
unchanged when KVM_SET_CPUID[2] call fails.
No functional change intended. It would've been possible to move the updated
kvm_check_cpuid() in kvm_vcpu_ioctl_set_cpuid2() and check the supplied
input before we start updating vcpu->arch.cpuid_entries/nent but we
can't do the same in kvm_vcpu_ioctl_set_cpuid() as we'll have to copy
'struct kvm_cpuid_entry' entries first. The change will be made when
vcpu->arch.cpuid_entries[] array becomes allocated dynamically.
Suggested-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20201001130541.1398392-2-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Reviewed-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Peter Shier <pshier@google.com>
Signed-off-by: Oliver Upton <oupton@google.com>
Change-Id: I0c6355b09fedf8f9cc4cc5f51be418e2c1c82b7b
Message-Id: <20200818152429.1923996-5-oupton@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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KVM unconditionally provides PV features to the guest, regardless of the
configured CPUID. An unwitting guest that doesn't check
KVM_CPUID_FEATURES before use could access paravirt features that
userspace did not intend to provide. Fix this by checking the guest's
CPUID before performing any paravirtual operations.
Introduce a capability, KVM_CAP_ENFORCE_PV_FEATURE_CPUID, to gate the
aforementioned enforcement. Migrating a VM from a host w/o this patch to
a host with this patch could silently change the ABI exposed to the
guest, warranting that we default to the old behavior and opt-in for
the new one.
Reviewed-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Peter Shier <pshier@google.com>
Signed-off-by: Oliver Upton <oupton@google.com>
Change-Id: I202a0926f65035b872bfe8ad15307c026de59a98
Message-Id: <20200818152429.1923996-4-oupton@google.com>
Reviewed-by: Wanpeng Li <wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Small change to avoid meaningless duplication in the subsequent patch.
No functional change intended.
Reviewed-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Peter Shier <pshier@google.com>
Signed-off-by: Oliver Upton <oupton@google.com>
Change-Id: I77ab9cdad239790766b7a49d5cbae5e57a3005ea
Message-Id: <20200818152429.1923996-3-oupton@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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No functional change intended.
Reviewed-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Peter Shier <pshier@google.com>
Reviewed-by: Wanpeng Li <wanpengli@tencent.com>
Signed-off-by: Oliver Upton <oupton@google.com>
Change-Id: I7cbe71069db98d1ded612fd2ef088b70e7618426
Message-Id: <20200818152429.1923996-2-oupton@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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KVM was switched to interrupt-based mechanism for 'page ready' event
delivery in Linux-5.8 (see commit 2635b5c4a0e4 ("KVM: x86: interrupt based
APF 'page ready' event delivery")) and #PF (ab)use for 'page ready' event
delivery was removed. Linux guest switched to this new mechanism
exclusively in 5.9 (see commit b1d405751cd5 ("KVM: x86: Switch KVM guest to
using interrupts for page ready APF delivery")) so it is not possible to
get #PF for a 'page ready' event even when the guest is running on top
of an older KVM (APF mechanism won't be enabled). Update the comment in
exc_page_fault() to reflect the new reality.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20201002154313.1505327-1-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Let KVM_WERROR depend on KVM, so it doesn't show in menuconfig alone.
Signed-off-by: Matteo Croce <mcroce@microsoft.com>
Message-Id: <20201001112014.9561-1-mcroce@linux.microsoft.com>
Fixes: 4f337faf1c55e ("KVM: allow disabling -Werror")
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Fixes: e287d6de62f74 ("Documentation: kvm: Convert cpuid.txt to .rst")
Signed-off-by: Li Qiang <liq3ea@163.com>
Message-Id: <20201001095333.7611-1-liq3ea@163.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Allowing userspace to intercept reads to x2APIC MSRs when APICV is
fully enabled for the guest simply can't work. But more in general,
the LAPIC could be set to in-kernel after the MSR filter is setup
and allowing accesses by userspace would be very confusing.
We could in principle allow userspace to intercept reads and writes to TPR,
and writes to EOI and SELF_IPI, but while that could be made it work, it
would still be silly.
Cc: Alexander Graf <graf@amazon.com>
Cc: Aaron Lewis <aaronlewis@google.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Rework the resetting of the MSR bitmap for x2APIC MSRs to ignore userspace
filtering. Allowing userspace to intercept reads to x2APIC MSRs when
APICV is fully enabled for the guest simply can't work; the LAPIC and thus
virtual APIC is in-kernel and cannot be directly accessed by userspace.
To keep things simple we will in fact forbid intercepting x2APIC MSRs
altogether, independent of the default_allow setting.
Cc: Alexander Graf <graf@amazon.com>
Cc: Aaron Lewis <aaronlewis@google.com>
Cc: Peter Xu <peterx@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20201005195532.8674-3-sean.j.christopherson@intel.com>
[Modified to operate even if APICv is disabled, adjust documentation. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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psp sysfs not cleaned up on driver unload for sienna_cichlid
Fixes: ce87c98db428e7 ("drm/amdgpu: Include sienna_cichlid in USBC PD FW support.")
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 5.9.x
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On connector destruction call drm_dp_mst_topology_mgr_destroy
to release resources allocated in drm_dp_mst_topology_mgr_init.
Do it only if MST manager was initilized before otherwsie a crash
is seen on driver unload/device unplug.
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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This fixes regression on device unplug and/or driver unload.
[ 65.681501 < 0.000004>] BUG: kernel NULL pointer dereference, address: 0000000000000008
[ 65.681504 < 0.000003>] #PF: supervisor write access in kernel mode
[ 65.681506 < 0.000002>] #PF: error_code(0x0002) - not-present page
[ 65.681507 < 0.000001>] PGD 7c9437067 P4D 7c9437067 PUD 7c9db7067 PMD 0
[ 65.681511 < 0.000004>] Oops: 0002 [#1] SMP NOPTI
[ 65.681512 < 0.000001>] CPU: 8 PID: 127 Comm: kworker/8:1 Tainted: G W O 5.9.0-rc2-dev+ #59
[ 65.681514 < 0.000002>] Hardware name: System manufacturer System Product Name/PRIME X470-PRO, BIOS 4406 02/28/2019
[ 65.681525 < 0.000011>] Workqueue: events drm_connector_free_work_fn [drm]
[ 65.681535 < 0.000010>] RIP: 0010:drm_atomic_private_obj_fini+0x11/0x60 [drm]
[ 65.681537 < 0.000002>] Code: de 4c 89 e7 e8 70 f2 ba f8 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 90 0f 1f 44 00 00 48 8b 47 08 48 8b 17 55 48 89 e5 53 <48> 89 42 08 48 89 10 48 b8 00 01 00 00 00 00 ad de 48 89 fb 48 89
[ 65.681541 < 0.000004>] RSP: 0018:ffffa5fa805efdd8 EFLAGS: 00010246
[ 65.681542 < 0.000001>] RAX: 0000000000000000 RBX: ffff9a4b094654d8 RCX: 0000000000000000
[ 65.681544 < 0.000002>] RDX: 0000000000000000 RSI: ffffffffba197bc2 RDI: ffff9a4b094654d8
[ 65.681545 < 0.000001>] RBP: ffffa5fa805efde0 R08: ffffffffba197b82 R09: 0000000000000040
[ 65.681547 < 0.000002>] R10: ffffa5fa805efdc8 R11: 000000000000007f R12: ffff9a4b09465888
[ 65.681549 < 0.000002>] R13: ffff9a4b36f20010 R14: ffff9a4b36f20290 R15: ffff9a4b3a692840
[ 65.681551 < 0.000002>] FS: 0000000000000000(0000) GS:ffff9a4b3ea00000(0000) knlGS:0000000000000000
[ 65.681553 < 0.000002>] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 65.681554 < 0.000001>] CR2: 0000000000000008 CR3: 00000007c9c82000 CR4: 00000000003506e0
[ 65.681556 < 0.000002>] Call Trace:
[ 65.681561 < 0.000005>] drm_dp_mst_topology_mgr_destroy+0xc4/0xe0 [drm_kms_helper]
[ 65.681612 < 0.000051>] amdgpu_dm_connector_destroy+0x3d/0x110 [amdgpu]
[ 65.681622 < 0.000010>] drm_connector_free_work_fn+0x78/0x90 [drm]
[ 65.681624 < 0.000002>] process_one_work+0x164/0x410
[ 65.681626 < 0.000002>] worker_thread+0x4d/0x450
[ 65.681628 < 0.000002>] ? rescuer_thread+0x390/0x390
[ 65.681630 < 0.000002>] kthread+0x10a/0x140
[ 65.681632 < 0.000002>] ? kthread_unpark+0x70/0x70
[ 65.681634 < 0.000002>] ret_from_fork+0x22/0x30
This reverts commit 1545fbf97eafc1dbdc2923e58b4186b16a834784.
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Update golden setting for sienna_cichlid.
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 5.9.x
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it will cause smu sysfs node of "pp_features" show error.
Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Likun Gao <Likun.Gao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 5.9.x
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Current code wrongly treat all cases as job == NULL.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-and-tested-by: Jane Jian <Jane.Jian@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Support to load RLC iram and dram ucode when RLC firmware struct use v2.2
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Add function for sienna_cichlid to force PBB workload mode to zero by
checking whether there have SE been harvested.
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 5.9.x
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From time to time, the novice kernel contributors do not add Reviewed-by
or Tested-by tags to the next versions of the patches. Mostly because
they are unaware that responsibility of adding these tags in next
version is on submitter, not maintainer.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20201013162725.13572-1-krzk@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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This is a Chinese translated version of
Documentation/arm64/hugetlbpage.rst
Signed-off-by: Bailu Lin <bailu.lin@vivo.com>
Reviewed-by: Alex Shi <alex.shi@linux.alibaba.com>
Link: https://lore.kernel.org/r/20201014022003.43862-1-bailu.lin@vivo.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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This patch adds a missing word in x86/x86_64/mm.rst, without which
the note reads awkwardly.
Signed-off-by: Wei Lin Chang <r09922117@csie.ntu.edu.tw>
Link: https://lore.kernel.org/r/20201015062242.26296-1-r09922117@csie.ntu.edu.tw
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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The ipmb file was added twice at index.rst. That
sounds to be because the same patch was applied twice,
via different git trees:
commit f6ae22d64433fd8e08654adad7966299da931bb9
Author: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Commit: Jonathan Corbet <corbet@lwn.net>
docs: ipmb: place it at driver-api and convert to ReST
commit ac499fba98c3c65078fd84fa0a62cd6f6d5837ed
Author: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Commit: Corey Minyard <cminyard@mvista.com>
docs: ipmb: place it at driver-api and convert to ReST
With Sphinx 4.0.0 development tree, a new warning is produced
due to that:
.../Documentation/driver-api/index.rst:14: WARNING: duplicated entry found in toctree: driver-api/ipmb
The fix is trivial: just drop the duplicated line.
Fixes: f6ae22d64433 ("docs: ipmb: place it at driver-api and convert to ReST")
Fixes: ac499fba98c3 ("docs: ipmb: place it at driver-api and convert to ReST")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/623fb26a8409a7b002e45bdbb6f517ac08fd508a.1602753121.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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The details on using LKDTM were overly obscure. Modernize the details
and expand examples to better illustrate how to use the interfaces.
Additionally add missing SPDX header.
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20201015224559.2137489-1-keescook@chromium.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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The notes on replacing the deprecated str*cpy() functions didn't call
enough attention to the change in return type. Add these details and
clean up the language a bit more.
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20201015231730.2138505-1-keescook@chromium.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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format the example code.
Signed-off-by: Hui Su <sh_def@163.com>
Link: https://lore.kernel.org/r/20201018170557.GA7670@rlk
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck:
- Add Toshiba Visconti watchdog driver
- it87_wdt: add IT8772 + IT8784
- several fixes and improvements
* tag 'linux-watchdog-5.10-rc1' of git://www.linux-watchdog.org/linux-watchdog:
watchdog: Add Toshiba Visconti watchdog driver
watchdog: bindings: Add binding documentation for Toshiba Visconti watchdog device
watchdog: it87_wdt: add IT8784 ID
watchdog: sp5100_tco: Enable watchdog on Family 17h devices if disabled
watchdog: sp5100: Fix definition of EFCH_PM_DECODEEN3
watchdog: renesas_wdt: support handover from bootloader
watchdog: imx7ulp: Watchdog should continue running for wait/stop mode
watchdog: rti: Simplify with dev_err_probe()
watchdog: davinci: Simplify with dev_err_probe()
watchdog: cadence: Simplify with dev_err_probe()
watchdog: remove unneeded inclusion of <uapi/linux/sched/types.h>
watchdog: Use put_device on error
watchdog: Fix memleak in watchdog_cdev_register
watchdog: imx7ulp: Strictly follow the sequence for wdog operations
watchdog: it87_wdt: add IT8772 ID
watchdog: pcwd_usb: Avoid GFP_ATOMIC where it is not needed
drivers: watchdog: rdc321x_wdt: Fix race condition bugs
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git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"A new driver this cycle is making the bulk of the changes and the
rx8010 driver has been rework to use the modern APIs.
Summary:
Subsystem:
- new generic DT properties: aux-voltage-chargeable,
trickle-voltage-millivolt
New driver:
- Microcrystal RV-3032
Drivers:
- ds1307: use aux-voltage-chargeable
- r9701, rx8010: modernization of the driver
- rv3028: fix clock output, trickle resistor values, RAM
configuration registers"
* tag 'rtc-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (50 commits)
rtc: r9701: set range
rtc: r9701: convert to devm_rtc_allocate_device
rtc: r9701: stop setting RWKCNT
rtc: r9701: remove useless memset
rtc: r9701: stop setting a default time
rtc: r9701: remove leftover comment
rtc: rv3032: Add a driver for Microcrystal RV-3032
dt-bindings: rtc: rv3032: add RV-3032 bindings
dt-bindings: rtc: add trickle-voltage-millivolt
rtc: rv3028: ensure ram configuration registers are saved
rtc: rv3028: factorize EERD bit handling
rtc: rv3028: fix trickle resistor values
rtc: rv3028: fix clock output support
rtc: mt6397: Remove unused member dev
rtc: rv8803: simplify the return expression of rv8803_nvram_write
rtc: meson: simplify the return expression of meson_vrtc_probe
rtc: rx8010: rename rx8010_init_client() to rx8010_init()
rtc: ds1307: enable rx8130's backup battery, make it chargeable optionally
rtc: ds1307: consider aux-voltage-chargeable
rtc: ds1307: store previous charge default per chip
...
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git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
Pull dmi update from Jean Delvare.
* 'dmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
Replace HTTP links with HTTPS ones: DMI/SMBIOS SUPPORT
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
- if a host can be a client, too, the I2C core can now use it to
emulate SMBus HostNotify support (STM32 and R-Car added this so far)
- also for client mode, a testunit has been added. It can create rare
situations on the bus, so host controllers can be tested
- a binding has been added to mark the bus as "single-master". This
allows for better timeout detections
- new driver for Mellanox Bluefield
- massive refactoring of the Tegra driver
- EEPROMs recognized by the at24 driver can now have custom names
- rest is driver updates
* 'i2c/for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (80 commits)
Documentation: i2c: add testunit docs to index
i2c: tegra: Improve driver module description
i2c: tegra: Clean up whitespaces, newlines and indentation
i2c: tegra: Clean up and improve comments
i2c: tegra: Clean up printk messages
i2c: tegra: Clean up variable names
i2c: tegra: Improve formatting of variables
i2c: tegra: Check errors for both positive and negative values
i2c: tegra: Factor out hardware initialization into separate function
i2c: tegra: Factor out register polling into separate function
i2c: tegra: Factor out packet header setup from tegra_i2c_xfer_msg()
i2c: tegra: Factor out error recovery from tegra_i2c_xfer_msg()
i2c: tegra: Rename wait/poll functions
i2c: tegra: Remove "dma" variable from tegra_i2c_xfer_msg()
i2c: tegra: Remove redundant check in tegra_i2c_issue_bus_clear()
i2c: tegra: Remove likely/unlikely from the code
i2c: tegra: Remove outdated barrier()
i2c: tegra: Clean up variable types
i2c: tegra: Reorder location of functions in the code
i2c: tegra: Clean up probe function
...
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Pull ceph updates from Ilya Dryomov:
- a patch that removes crush_workspace_mutex (myself). CRUSH
computations are no longer serialized and can run in parallel.
- a couple new filesystem client metrics for "ceph fs top" command
(Xiubo Li)
- a fix for a very old messenger bug that affected the filesystem,
marked for stable (myself)
- assorted fixups and cleanups throughout the codebase from Jeff and
others.
* tag 'ceph-for-5.10-rc1' of git://github.com/ceph/ceph-client: (27 commits)
libceph: clear con->out_msg on Policy::stateful_server faults
libceph: format ceph_entity_addr nonces as unsigned
libceph: fix ENTITY_NAME format suggestion
libceph: move a dout in queue_con_delay()
ceph: comment cleanups and clarifications
ceph: break up send_cap_msg
ceph: drop separate mdsc argument from __send_cap
ceph: promote to unsigned long long before shifting
ceph: don't SetPageError on readpage errors
ceph: mark ceph_fmt_xattr() as printf-like for better type checking
ceph: fold ceph_update_writeable_page into ceph_write_begin
ceph: fold ceph_sync_writepages into writepage_nounlock
ceph: fold ceph_sync_readpages into ceph_readpage
ceph: don't call ceph_update_writeable_page from page_mkwrite
ceph: break out writeback of incompatible snap context to separate function
ceph: add a note explaining session reject error string
libceph: switch to the new "osd blocklist add" command
libceph, rbd, ceph: "blacklist" -> "blocklist"
ceph: have ceph_writepages_start call pagevec_lookup_range_tag
ceph: use kill_anon_super helper
...
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In commit fe341eb151ec, I forgot that xfs_free_file_space isn't strictly
a "remove mapped blocks" function. It is actually a function to zero
file space by punching out the middle and writing zeroes to the
unaligned ends of the specified range. Therefore, putting a rtextsize
alignment check in that function is wrong because that breaks unaligned
ZERO_RANGE on the realtime volume.
Furthermore, xfs_file_fallocate already has alignment checks for the
functions require the file range to be aligned to the size of a
fundamental allocation unit (which is 1 FSB on the data volume and 1 rt
extent on the realtime volume). Create a new helper to check fallocate
arguments against the realtiem allocation unit size, fix the fallocate
frontend to use it, fix free_file_space to delete the correct range, and
remove a now redundant check from insert_file_space.
NOTE: The realtime extent size is not required to be a power of two!
Fixes: fe341eb151ec ("xfs: ensure that fpunch, fcollapse, and finsert operations are aligned to rt extent size")
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
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Like TCP, MPTCP cannot be compiled as a module. Obviously, MPTCP IPv6'
support also depends on CONFIG_IPV6. But not all functions from IPv6
code are exported.
To simplify the code and reduce modifications outside MPTCP, it was
decided from the beginning to support MPTCP with IPv6 only if
CONFIG_IPV6 was built inlined. That's also why CONFIG_MPTCP_IPV6 was
created. More modifications are needed to support CONFIG_IPV6=m.
Even if it was not explicit, until recently, we were forcing CONFIG_IPV6
to be built-in because we had "select IPV6" in Kconfig. Now that we have
"depends on IPV6", we have to explicitly set "IPV6=y" to force
CONFIG_IPV6 not to be built as a module.
In other words, we can now only have CONFIG_MPTCP_IPV6=y if
CONFIG_IPV6=y.
Note that the new dependency might hide the fact IPv6 is not supported
in MPTCP even if we have CONFIG_IPV6=m. But selecting IPV6 like we did
before was forcing it to be built-in while it was maybe not what the
user wants.
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Fixes: 010b430d5df5 ("mptcp: MPTCP_IPV6 should depend on IPV6 instead of selecting it")
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Link: https://lore.kernel.org/r/20201021105154.628257-1-matthieu.baerts@tessares.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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- Remove leftover bridge initialization (Lorenzo Pieralisi)
* remotes/lorenzo/pci/xilinx:
PCI: xilinx-cpm: Remove leftover bridge initialization
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- Remove unused assignment (Krzysztof Wilczyński)
* remotes/lorenzo/pci/xgene:
PCI: xgene: Remove unused assignment to variable msi_val
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- Add physical offset helper (Jon Derrick)
- Add bus offset configuration helper (Jon Derrick)
- Add IRQ domain configuration helper (Jon Derrick)
- Add IRQ allocation helper (Jon Derrick)
- Drop pci_save_state()/pci_restore_state() in favor of the PCI core PM
(Jon Derrick)
* pci/vmd:
PCI: vmd: Update VMD PM to correctly use generic PCI PM
PCI: vmd: Create IRQ allocation helper
PCI: vmd: Create IRQ Domain configuration helper
PCI: vmd: Create bus offset configuration helper
PCI: vmd: Create physical offset helper
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- Drop return value checking for debugfs_create() calls (Greg
Kroah-Hartman)
- Convert debugfs "ports" file to use DEFINE_SEQ_ATTRIBUTE() (Liu Shixin)
* remotes/lorenzo/pci/tegra:
PCI: tegra: Convert to use DEFINE_SEQ_ATTRIBUTE macro
PCI: tegra: No need to check return value of debugfs_create() functions
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- Document R8A774A1, R8A774B1, R8A774E1 endpoint support in DT (Lad
Prabhakar)
- Add R8A774A1, R8A774B1, R8A774E1 (RZ/G2M, RZ/G2N, RZ/G2H) IDs to endpoint
test (Lad Prabhakar)
- Add device tree support for R8A7742 (Lad Prabhakar)
- Use "fallthrough" pseudo-keyword (Gustavo A. R. Silva)
* remotes/lorenzo/pci/rcar:
dt-bindings: PCI: rcar: Add device tree support for r8a7742
PCI: rcar-gen2: Use fallthrough pseudo-keyword
misc: pci_endpoint_test: Add Device ID for RZ/G2H PCIe controller
dt-bindings: pci: rcar-pci-ep: Document r8a774e1
misc: pci_endpoint_test: Add Device ID for RZ/G2M and RZ/G2N PCIe controllers
dt-bindings: pci: rcar-pci-ep: Document r8a774a1 and r8a774b1
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- Make sure PCIe is reset before init to work around QSDK U-Boot issue
(Ansuel Smith)
- Set iproc affinity mask on MSI interrupts (Mark Tomlinson)
* remotes/lorenzo/pci/qcom:
PCI: qcom: Make sure PCIe is reset before init for rev 2.1.0
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- Remove useless msi_controller pointer allocation (Lorenzo Pieralisi)
* remotes/lorenzo/pci/mvebu:
PCI: mvebu: Remove useless msi_controller pointer allocation
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- Simplify mobiveil_pcie_init_irq_domain() (Liu Shixin)
* remotes/lorenzo/pci/mobiveil:
PCI: mobiveil: Simplify mobiveil_pcie_init_irq_domain() return expression
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- Add pci-meson module support and enable by default on ARCH_MESON (Kevin
Hilman)
* remotes/lorenzo/pci/meson:
PCI: meson: Build as module by default
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* remotes/lorenzo/pci/loongson:
PCI: loongson: Simplify loongson_pci_probe() return expression
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- Return -EPROBE_DEFER in case the gpio isn't ready (Bean Huo)
* remotes/lorenzo/pci/kirin:
PCI: kirin: Return -EPROBE_DEFER in case the gpio isn't ready
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