IF YOU WOULD LIKE TO GET AN ACCOUNT, please write an
email to Administrator. User accounts are meant only to access repo
and report issues and/or generate pull requests.
This is a purpose-specific Git hosting for
BaseALT
projects. Thank you for your understanding!
Только зарегистрированные пользователи имеют доступ к сервису!
Для получения аккаунта, обратитесь к администратору.
__bfs() could return four magic numbers:
1: search succeeds, but none match.
0: search succeeds, find one match.
-1: search fails because of the cq is full.
-2: search fails because a invalid node is found.
This patch cleans things up by using a enum type for the return value
of __bfs() and its friends, this improves the code readability of the
code, and further, could help if we want to extend the BFS.
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200807074238.1632519-4-boqun.feng@gmail.com
This patch add the documentation piece for the reasoning of deadlock
detection related to recursive read lock. The following sections are
added:
* Explain what is a recursive read lock, and what deadlock cases
they could introduce.
* Introduce the notations for different types of dependencies, and
the definition of strong paths.
* Proof for a closed strong path is both sufficient and necessary
for deadlock detections with recursive read locks involved. The
proof could also explain why we call the path "strong"
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200807074238.1632519-3-boqun.feng@gmail.com
On the archs using QUEUED_RWLOCKS, read_lock() is not always a recursive
read lock, actually it's only recursive if in_interrupt() is true. So
change the annotation accordingly to catch more deadlocks.
Note we used to treat read_lock() as pure recursive read locks in
lib/locking-seftest.c, and this is useful, especially for the lockdep
development selftest, so we keep this via a variable to force switching
lock annotation for read_lock().
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200807074238.1632519-2-boqun.feng@gmail.com
Fix issues with local_locks documentation:
- fix function names, local_lock.h has local_unlock_irqrestore(), not
local_lock_irqrestore()
- fix mapping table, local_unlock_irqrestore() maps to
local_irq_restore(), not _save()
Signed-off-by: Marta Rybczynska <rybczynska@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lkml.kernel.org/r/CAApg2=SKxQ3Sqwj6TZnV-0x0cKLXFKDaPvXT4N15MPDMKq724g@mail.gmail.com
Fix kernel-doc warnings in <linux/seqlock.h>.
../include/linux/seqlock.h:152: warning: Incorrect use of kernel-doc format: * seqcount_LOCKNAME_init() - runtime initializer for seqcount_LOCKNAME_t
../include/linux/seqlock.h:164: warning: Incorrect use of kernel-doc format: * SEQCOUNT_LOCKTYPE() - Instantiate seqcount_LOCKNAME_t and helpers
../include/linux/seqlock.h:229: warning: Function parameter or member 'seq_name' not described in 'SEQCOUNT_LOCKTYPE_ZERO'
../include/linux/seqlock.h:229: warning: Function parameter or member 'assoc_lock' not described in 'SEQCOUNT_LOCKTYPE_ZERO'
../include/linux/seqlock.h:229: warning: Excess function parameter 'name' description in 'SEQCOUNT_LOCKTYPE_ZERO'
../include/linux/seqlock.h:229: warning: Excess function parameter 'lock' description in 'SEQCOUNT_LOCKTYPE_ZERO'
../include/linux/seqlock.h:695: warning: duplicate section name 'NOTE'
Demote kernel-doc notation for the macros "seqcount_LOCKNAME_init()" and
"SEQCOUNT_LOCKTYPE()"; scripts/kernel-doc does not handle them correctly.
Rename function parameters in SEQCNT_LOCKNAME_ZERO() documentation
to match the macro's argument names. Change the macro name in the
documentation to SEQCOUNT_LOCKTYPE_ZERO() to match the macro's name.
For raw_write_seqcount_latch(), rename the second NOTE: to NOTE2:
to prevent a kernel-doc warning. However, the generated output is not
quite as nice as it could be for this.
Fix a typo: s/LOCKTYPR/LOCKTYPE/
Fixes: 0efc94c5d1 ("seqcount: Compress SEQCNT_LOCKNAME_ZERO()")
Fixes: e4e9ab3f9f ("seqlock: Fold seqcount_LOCKNAME_init() definition")
Fixes: a8772dccb2 ("seqlock: Fold seqcount_LOCKNAME_t definition")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200817000200.20993-1-rdunlap@infradead.org
David requested means to obtain the old/previous value from the
refcount API for tracing purposes.
Duplicate (most of) the API as __refcount*() with an additional
'int *' argument into which, if !NULL, the old value will be stored.
Requested-by: David Howells <dhowells@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lkml.kernel.org/r/20200729111120.GA2638@hirez.programming.kicks-ass.net
The lockdep tracepoints are under the lockdep recursion counter, this
has a bunch of nasty side effects:
- TRACE_IRQFLAGS doesn't work across the entire tracepoint
- RCU-lockdep doesn't see the tracepoints either, hiding numerous
"suspicious RCU usage" warnings.
Pull the trace_lock_*() tracepoints completely out from under the
lockdep recursion handling and completely rely on the trace level
recusion handling -- also, tracing *SHOULD* not be taking locks in any
case.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Marco Elver <elver@google.com>
Link: https://lkml.kernel.org/r/20200821085348.782688941@infradead.org
Problem:
raw_local_irq_save(); // software state on
local_irq_save(); // software state off
...
local_irq_restore(); // software state still off, because we don't enable IRQs
raw_local_irq_restore(); // software state still off, *whoopsie*
existing instances:
- lock_acquire()
raw_local_irq_save()
__lock_acquire()
arch_spin_lock(&graph_lock)
pv_wait() := kvm_wait() (same or worse for Xen/HyperV)
local_irq_save()
- trace_clock_global()
raw_local_irq_save()
arch_spin_lock()
pv_wait() := kvm_wait()
local_irq_save()
- apic_retrigger_irq()
raw_local_irq_save()
apic->send_IPI() := default_send_IPI_single_phys()
local_irq_save()
Possible solutions:
A) make it work by enabling the tracing inside raw_*()
B) make it work by keeping tracing disabled inside raw_*()
C) call it broken and clean it up now
Now, given that the only reason to use the raw_* variant is because you don't
want tracing. Therefore A) seems like a weird option (although it can be done).
C) is tempting, but OTOH it ends up converting a _lot_ of code to raw just
because there is one raw user, this strips the validation/tracing off for all
the other users.
So we pick B) and declare any code that ends up doing:
raw_local_irq_save()
local_irq_save()
lockdep_assert_irqs_disabled();
broken. AFAICT this problem has existed forever, the only reason it came
up is because commit: 859d069ee1 ("lockdep: Prepare for NMI IRQ
state tracking") changed IRQ tracing vs lockdep recursion and the
first instance is fairly common, the other cases hardly ever happen.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[rewrote changelog]
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Marco Elver <elver@google.com>
Link: https://lkml.kernel.org/r/20200723105615.1268126-1-npiggin@gmail.com
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lkml.kernel.org/r/20200821085348.664425120@infradead.org
Cc: Nick Hu <nickhu@andestech.com>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Marco Elver <elver@google.com>
Link: https://lkml.kernel.org/r/20200821085348.604899379@infradead.org
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Marco Elver <elver@google.com>
Link: https://lkml.kernel.org/r/20200821085348.546087214@infradead.org
Unused remnants
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Marco Elver <elver@google.com>
Link: https://lkml.kernel.org/r/20200821085348.487040689@infradead.org
Remove trace_cpu_idle() from the arch_cpu_idle() implementations and
put it in the generic code, right before disabling RCU. Gets rid of
more trace_*_rcuidle() users.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Marco Elver <elver@google.com>
Link: https://lkml.kernel.org/r/20200821085348.428433395@infradead.org
This allows moving the leave_mm() call into generic code before
rcu_idle_enter(). Gets rid of more trace_*_rcuidle() users.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Marco Elver <elver@google.com>
Link: https://lkml.kernel.org/r/20200821085348.369441600@infradead.org
Lots of things take locks, due to a wee bug, rcu_lockdep didn't notice
that the locking tracepoints were using RCU.
Push rcu_idle_{enter,exit}() as deep as possible into the idle paths,
this also resolves a lot of _rcuidle()/RCU_NONIDLE() usage.
Specifically, sched_clock_idle_wakeup_event() will use ktime which
will use seqlocks which will tickle lockdep, and
stop_critical_timings() uses lock.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Marco Elver <elver@google.com>
Link: https://lkml.kernel.org/r/20200821085348.310943801@infradead.org
Match the pattern elsewhere in this file.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Marco Elver <elver@google.com>
Link: https://lkml.kernel.org/r/20200821085348.251340558@infradead.org
Sven reported that commit a21ee6055c ("lockdep: Change
hardirq{s_enabled,_context} to per-cpu variables") caused trouble on
s390 because their this_cpu_*() primitives disable preemption which
then lands back tracing.
On the one hand, per-cpu ops should use preempt_*able_notrace() and
raw_local_irq_*(), on the other hand, we can trivialy use raw_cpu_*()
ops for this.
Fixes: a21ee6055c ("lockdep: Change hardirq{s_enabled,_context} to per-cpu variables")
Reported-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Marco Elver <elver@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200821085348.192346882@infradead.org
Add perf support for emitting extended registers for power10.
A fix for CPU hotplug on pseries, where on large/loaded systems we may not wait
long enough for the CPU to be offlined, leading to crashes.
Addition of a raw cputable entry for Power10, which is not required to boot, but
is required to make our PMU setup work correctly in guests.
Three fixes for the recent changes on 32-bit Book3S to move modules into their
own segment for strict RWX.
A fix for a recent change in our powernv PCI code that could lead to crashes.
A change to our perf interrupt accounting to avoid soft lockups when using some
events, found by syzkaller.
A change in the way we handle power loss events from the hypervisor on pseries.
We no longer immediately shut down if we're told we're running on a UPS.
A few other minor fixes.
Thanks to:
Alexey Kardashevskiy, Andreas Schwab, Aneesh Kumar K.V, Anju T Sudhakar,
Athira Rajeev, Christophe Leroy, Frederic Barrat, Greg Kurz, Kajol Jain,
Madhavan Srinivasan, Michael Neuling, Michael Roth, Nageswara R Sastry, Oliver
O'Halloran, Thiago Jung Bauermann, Vaidyanathan Srinivasan, Vasant Hegde.
-----BEGIN PGP SIGNATURE-----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=sdJ1
-----END PGP SIGNATURE-----
Merge tag 'powerpc-5.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Add perf support for emitting extended registers for power10.
- A fix for CPU hotplug on pseries, where on large/loaded systems we
may not wait long enough for the CPU to be offlined, leading to
crashes.
- Addition of a raw cputable entry for Power10, which is not required
to boot, but is required to make our PMU setup work correctly in
guests.
- Three fixes for the recent changes on 32-bit Book3S to move modules
into their own segment for strict RWX.
- A fix for a recent change in our powernv PCI code that could lead to
crashes.
- A change to our perf interrupt accounting to avoid soft lockups when
using some events, found by syzkaller.
- A change in the way we handle power loss events from the hypervisor
on pseries. We no longer immediately shut down if we're told we're
running on a UPS.
- A few other minor fixes.
Thanks to Alexey Kardashevskiy, Andreas Schwab, Aneesh Kumar K.V, Anju T
Sudhakar, Athira Rajeev, Christophe Leroy, Frederic Barrat, Greg Kurz,
Kajol Jain, Madhavan Srinivasan, Michael Neuling, Michael Roth,
Nageswara R Sastry, Oliver O'Halloran, Thiago Jung Bauermann,
Vaidyanathan Srinivasan, Vasant Hegde.
* tag 'powerpc-5.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/perf/hv-24x7: Move cpumask file to top folder of hv-24x7 driver
powerpc/32s: Fix module loading failure when VMALLOC_END is over 0xf0000000
powerpc/pseries: Do not initiate shutdown when system is running on UPS
powerpc/perf: Fix soft lockups due to missed interrupt accounting
powerpc/powernv/pci: Fix possible crash when releasing DMA resources
powerpc/pseries/hotplug-cpu: wait indefinitely for vCPU death
powerpc/32s: Fix is_module_segment() when MODULES_VADDR is defined
powerpc/kasan: Fix KASAN_SHADOW_START on BOOK3S_32
powerpc/fixmap: Fix the size of the early debug area
powerpc/pkeys: Fix build error with PPC_MEM_KEYS disabled
powerpc/kernel: Cleanup machine check function declarations
powerpc: Add POWER10 raw mode cputable entry
powerpc/perf: Add extended regs support for power10 platform
powerpc/perf: Add support for outputting extended regs in perf intr_regs
powerpc: Fix P10 PVR revision in /proc/cpuinfo for SMT4 cores
path and unconditionally uses LSL to retrieve the CPU number. RDPID depends
on MSR_TSX_AUX. KVM has an optmization to avoid expensive MRS read/writes
on VMENTER/EXIT. It caches the MSR values and restores them either when
leaving the run loop, on preemption or when going out to user
space. MSR_TSX_AUX is part of that lazy MSR set, so after writing the guest
value and before the lazy restore any exception using the paranoid entry
will read the guest value and use it as CPU number to retrieve the GSBASE
value for the current CPU when FSGSBASE is enabled. As RDPID is only used
in that particular entry path, there is no reason to burden VMENTER/EXIT
with two extra MSR writes. Remove the RDPID optimization, which is not even
backed by numbers from the paranoid entry path instead.
-----BEGIN PGP SIGNATURE-----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=AEel
-----END PGP SIGNATURE-----
Merge tag 'x86-urgent-2020-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Thomas Gleixner:
"A single fix for x86 which removes the RDPID usage from the paranoid
entry path and unconditionally uses LSL to retrieve the CPU number.
RDPID depends on MSR_TSX_AUX. KVM has an optmization to avoid
expensive MRS read/writes on VMENTER/EXIT. It caches the MSR values
and restores them either when leaving the run loop, on preemption or
when going out to user space. MSR_TSX_AUX is part of that lazy MSR
set, so after writing the guest value and before the lazy restore any
exception using the paranoid entry will read the guest value and use
it as CPU number to retrieve the GSBASE value for the current CPU when
FSGSBASE is enabled. As RDPID is only used in that particular entry
path, there is no reason to burden VMENTER/EXIT with two extra MSR
writes. Remove the RDPID optimization, which is not even backed by
numbers from the paranoid entry path instead"
* tag 'x86-urgent-2020-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/entry/64: Do not use RDPID in paranoid entry to accomodate KVM
broken down bandwith counters.
-----BEGIN PGP SIGNATURE-----
iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAl9CJSkTHHRnbHhAbGlu
dXRyb25peC5kZQAKCRCmGPVMDXSYoUmoD/9xdmi6Pi8cqsN61zoqzDMygyd45rYH
x9oe1QOYHPBp7fIEv0EeG/HcZpBG23Oyj7XnAGZlUuSzHzRYSK3ceQHqo0VEP7qv
ZrPzBJCI+wx/zVBFN62IbSZmZF3omBjo+TKT1bTKmDRov+qovAEcD040Vt45SkW2
NKiD/u2iJemLrF9g7KKgNCv+alqGAeH6YzZpWgFycP550psIF3WgIY2eMjSY9+XD
i7DrEg/OWY5vvCYbHBxrbhvqkXlhyMzw0jqWJtRHTIPRjMuDCM9yef5KiCExPdFX
e+rE+O2gp/9xMEcAvi4SK3s1QUe0wjq+e7stNiOKrBhNA0CNhvJxAmIBO2y4Bi5+
BKJelWt0vDDxCiQgW9mctq0rvu8KM6C3w6AgKWiQNbirVLKHNdx4AvF5SNWGVRhf
ZGMVaFlpwuuTZfahbdmwi88j6968h8izjkQeQ2gZMXEOgv8P/Df+C9IcHH/HxEgI
OwW6htpU3LeOSbEu9201AJqjqAtpXxYzodBWuGWLF7+BF6NACciITQPApkYvWGPN
bKol/kbX52ZRzBEEUHWfrIred7KPH/2UZltPz6Fo5wwuuI2zKBYecIN/vWppzITH
uj5sq2UVAdRQy8/9wKys1bu0uVhlILVa/KTYuf+9cuCWGELfRTN5iHaKviUEEFWB
aVfI8o2ThyQyvQ==
=vF1u
-----END PGP SIGNATURE-----
Merge tag 'perf-urgent-2020-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 perf fix from Thomas Gleixner:
"A single update for perf on x86 which has support for the broken down
bandwith counters"
* tag 'perf-urgent-2020-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel/uncore: Add BW counters for GT, IA and IO breakdown
- Enforce NX on RO data in mixed EFI mode
- Destroy workqueue in an error handling path to prevent UAF
- Stop argument parser at '--' which is the delimiter for init
- Treat a NULL command line pointer as empty instead of dereferncing it
unconditionally.
- Handle an unterminated command line correctly
- Cleanup the 32bit code leftovers and remove obsolete documentation
-----BEGIN PGP SIGNATURE-----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=+nbs
-----END PGP SIGNATURE-----
Merge tag 'efi-urgent-2020-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fixes from Thomas Gleixner:
- Enforce NX on RO data in mixed EFI mode
- Destroy workqueue in an error handling path to prevent UAF
- Stop argument parser at '--' which is the delimiter for init
- Treat a NULL command line pointer as empty instead of dereferncing it
unconditionally.
- Handle an unterminated command line correctly
- Cleanup the 32bit code leftovers and remove obsolete documentation
* tag 'efi-urgent-2020-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Documentation: efi: remove description of efi=old_map
efi/x86: Move 32-bit code into efi_32.c
efi/libstub: Handle unterminated cmdline
efi/libstub: Handle NULL cmdline
efi/libstub: Stop parsing arguments at "--"
efi: add missed destroy_workqueue when efisubsys_init fails
efi/x86: Mark kernel rodata non-executable for mixed mode
version messed up the reload of the syscall number from pt_regs after
ptrace and seccomp which breaks syscall number rewriting.
-----BEGIN PGP SIGNATURE-----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=2OhI
-----END PGP SIGNATURE-----
Merge tag 'core-urgent-2020-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull entry fix from Thomas Gleixner:
"A single bug fix for the common entry code.
The transcription of the x86 version messed up the reload of the
syscall number from pt_regs after ptrace and seccomp which breaks
syscall number rewriting"
* tag 'core-urgent-2020-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
core/entry: Respect syscall number rewrites
which lead to a recoverable error getting marked as fatal, by Tony
Luck.
-----BEGIN PGP SIGNATURE-----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=RYEr
-----END PGP SIGNATURE-----
Merge tag 'edac_urgent_for_v5.9_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras
Pull EDAC fix from Borislav Petkov:
"A single fix correcting a reversed error severity determination check
which lead to a recoverable error getting marked as fatal, by Tony
Luck"
* tag 'edac_urgent_for_v5.9_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
EDAC/{i7core,sb,pnd2,skx}: Fix error event severity
Pull networking fixes from David Miller:
"Nothing earth shattering here, lots of small fixes (f.e. missing RCU
protection, bad ref counting, missing memset(), etc.) all over the
place:
1) Use get_file_rcu() in task_file iterator, from Yonghong Song.
2) There are two ways to set remote source MAC addresses in macvlan
driver, but only one of which validates things properly. Fix this.
From Alvin Šipraga.
3) Missing of_node_put() in gianfar probing, from Sumera
Priyadarsini.
4) Preserve device wanted feature bits across multiple netlink
ethtool requests, from Maxim Mikityanskiy.
5) Fix rcu_sched stall in task and task_file bpf iterators, from
Yonghong Song.
6) Avoid reset after device destroy in ena driver, from Shay
Agroskin.
7) Missing memset() in netlink policy export reallocation path, from
Johannes Berg.
8) Fix info leak in __smc_diag_dump(), from Peilin Ye.
9) Decapsulate ECN properly for ipv6 in ipv4 tunnels, from Mark
Tomlinson.
10) Fix number of data stream negotiation in SCTP, from David Laight.
11) Fix double free in connection tracker action module, from Alaa
Hleihel.
12) Don't allow empty NHA_GROUP attributes, from Nikolay Aleksandrov"
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (46 commits)
net: nexthop: don't allow empty NHA_GROUP
bpf: Fix two typos in uapi/linux/bpf.h
net: dsa: b53: check for timeout
tipc: call rcu_read_lock() in tipc_aead_encrypt_done()
net/sched: act_ct: Fix skb double-free in tcf_ct_handle_fragments() error flow
net: sctp: Fix negotiation of the number of data streams.
dt-bindings: net: renesas, ether: Improve schema validation
gre6: Fix reception with IP6_TNL_F_RCV_DSCP_COPY
hv_netvsc: Fix the queue_mapping in netvsc_vf_xmit()
hv_netvsc: Remove "unlikely" from netvsc_select_queue
bpf: selftests: global_funcs: Check err_str before strstr
bpf: xdp: Fix XDP mode when no mode flags specified
selftests/bpf: Remove test_align leftovers
tools/resolve_btfids: Fix sections with wrong alignment
net/smc: Prevent kernel-infoleak in __smc_diag_dump()
sfc: fix build warnings on 32-bit
net: phy: mscc: Fix a couple of spelling mistakes "spcified" -> "specified"
libbpf: Fix map index used in error message
net: gemini: Fix missing free_netdev() in error path of gemini_ethernet_port_probe()
net: atlantic: Use readx_poll_timeout() for large timeout
...
Pull epoll fixes from Al Viro:
"Fix reference counting and clean up exit paths"
* 'work.epoll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
do_epoll_ctl(): clean the failure exits up a bit
epoll: Keep a reference on files added to the check list
When adding a new fd to an epoll, and that this new fd is an
epoll fd itself, we recursively scan the fds attached to it
to detect cycles, and add non-epool files to a "check list"
that gets subsequently parsed.
However, this check list isn't completely safe when deletions
can happen concurrently. To sidestep the issue, make sure that
a struct file placed on the check list sees its f_count increased,
ensuring that a concurrent deletion won't result in the file
disapearing from under our feet.
Cc: stable@vger.kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
- move -Wsign-compare warning from W=2 to W=3
- fix the keyword _restrict to __restrict in genksyms
- fix more bugs in qconf
-----BEGIN PGP SIGNATURE-----
iQJJBAABCgAzFiEEbmPs18K1szRHjPqEPYsBB53g2wYFAl9BIv8VHG1hc2FoaXJv
eUBrZXJuZWwub3JnAAoJED2LAQed4NsGgUgQAKvWTNNvrY0YEY5YrFjh5swT/bBs
9YfYdrEe7MOkmUtIf0DemwzdmaiZmLSGLAZZNfMEElLdk4bofi13uznh/7M/Yd7H
Vws7qeQDypRYxieUhrQMubpxoK/ZFPb89x+zX9LlFO9nB1/810iMVJkrysSbVDDU
QnQWcKIa7X+narruX3DWz5I9FxarODXTIVLz4mR29z7xo1UGfuGuLlH3/mmGLaCt
kmVnDs0eEFpRt1y70plZ5YZqhFV3619LvRQW8RwJgVXEPzXb5FaWhoJnfIlLgcJb
epZ0miZgTMAugqryfD0cyqAImNglQTkfhXtmWJR5g77qrqwqHkSi/xnMHhbEP499
h/GwUmmfUzcjwJJlCzfLE1tuSPRgOvoy6Yp/6T0f+rCVhr8EyZ15BG0qDF3leHY9
Wlz6CdnRvmBKicMyK6MhH0MFWGmE4h2XM7eCMkVYG6u7WiDxC/FjCYI/73I2632t
YXeMevAtXfNM5J0TOk1zzUeIordan4s5J5ddlRCRd7GMMmqq5BnfuNI+B9n5Npev
6g+XerkCreHEgOX1HSAj1SYmSykHjIyIl5AmWwRJEvRlxMKuNPPvar0oJqSUlJ7j
HPsKAhdl+dlKCxKmz7e3nyfkc5IfMrMAfc6dD9/DAxggWBTeCU0UgaB0ZrFkHMdm
yx4fimZilwKm3wUA
=bySb
-----END PGP SIGNATURE-----
Merge tag 'kbuild-fixes-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- move -Wsign-compare warning from W=2 to W=3
- fix the keyword _restrict to __restrict in genksyms
- fix more bugs in qconf
* tag 'kbuild-fixes-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kconfig: qconf: replace deprecated QString::sprintf() with QTextStream
kconfig: qconf: remove redundant help in the info view
kconfig: qconf: remove qInfo() to get back Qt4 support
kconfig: qconf: remove unused colNr
kconfig: qconf: fix the popup menu in the ConfigInfoView window
kconfig: qconf: fix signal connection to invalid slots
genksyms: keywords: Use __restrict not _restrict
kbuild: remove redundant patterns in filter/filter-out
extract-cert: add static to local data
Makefile.extrawarn: Move sign-compare from W=2 to W=3
(currently they are parked if none of the early CPUs are affected by
this erratum).
- Add the 32-bit vdso Makefile to the vdso_install rule so that 'make
vdso_install' installs the 32-bit compat vdso when it is compiled.
- Print a warning that untrusted guests without a CPU erratum workaround
(Cortex-A57 832075) may deadlock the affected system.
-----BEGIN PGP SIGNATURE-----
iQIzBAABCgAdFiEE5RElWfyWxS+3PLO2a9axLQDIXvEFAl9BOb8ACgkQa9axLQDI
XvFnixAAladNjLswpC8gm0PSv2fXD+OJU7XiJKl1McG0UcnkRp1brgruOi7WMyQg
I0cbY6Kjfb6mFJaHfEA9uuQ0P44FGmI+gz+3Injl+a0qJgdu0QLU1uJQG/Rae+zG
kdoimf+/CnLnJTiIA5YXsdrFhSQsn2lVConJx26QrSJO0SB0TROy86aRSrRSMyYy
mXrK4xCm/cx4LqJQJrFmShpgs/IjuK8T/LZBInjgB43e3y++SHwGTSA2kf3NOldz
Rx4HqQVJ37IeROZ8B2v8MggZsTk/5C+DaxJu6QBk7REDKPnI9+RAr3BhPUAAVWDn
BONYtsjBLgf/Q9bmXNsHlGAhjIIeOAgaIIr10oVhSFScCHsjEU15hqyNP2jfgLSC
Q4cgU8bA0sm36CHNI0vd5phAnMBN6HJZtmSzu2xb/GJKYW4yiuXupYiOWbBAhhiu
uAFjMRW+dwfOXY/59kwpmedBZ0WvHod2mPhp3n4FRzo3X0NfRgHzgg1kDRwqVAzv
eh8ynUYMjuy5H3siNR0279M6epIK/hTtqSvnzIqkCTBkftsYX+32v4UzEardRGiv
+/gKJ1XQGmWD3OCISuMZwaRK+tH5V68eT+3P0gGmssJLYMtRJFzzVtuv3mz1yXRD
USsww/SY2etlGU+N8r+66NSqU0KPRdQ0tkK6eCX8DTyl3MPLQfQ=
=VkR3
-----END PGP SIGNATURE-----
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Allow booting of late secondary CPUs affected by erratum 1418040
(currently they are parked if none of the early CPUs are affected by
this erratum).
- Add the 32-bit vdso Makefile to the vdso_install rule so that 'make
vdso_install' installs the 32-bit compat vdso when it is compiled.
- Print a warning that untrusted guests without a CPU erratum
workaround (Cortex-A57 832075) may deadlock the affected system.
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
ARM64: vdso32: Install vdso32 from vdso_install
KVM: arm64: Print warning when cpu erratum can cause guests to deadlock
arm64: Allow booting of late CPUs affected by erratum 1418040
arm64: Move handling of erratum 1418040 into C code
- Couple of fixes for storage key handling relevant for debugging.
- Add cond_resched into potentially slow subchannels scanning loop.
- Fixes for PF/VF linking and to ignore stale PCI configuration request
events.
-----BEGIN PGP SIGNATURE-----
iQEzBAABCAAdFiEE3QHqV+H2a8xAv27vjYWKoQLXFBgFAl9BDkAACgkQjYWKoQLX
FBhF3gf+KmVa7/Eb9Z0jE6dS1op5mggBASIMk7wr/enwSBQ7bLa42iGQPP9b7lWu
5FTLifmrelVIAadDjFU7+vfBYY4CtTg+KvaajlJeAe4QScND+KN3G7LkT+kRnqxy
n6evcW19yKKos2I+cVlqL0QxOXQBsQFM7wmpOrf373OBRqDyJAkV1DjcLopPZr8I
eMaKyhlLMoyxaoXkddk+RC417aIkuL900WaUMmdEkREIhawWbuyKoWqypk76CXih
Jtxgi1nSCX7nSVUnrLHLl4xPdpBziQ3iqccliddysNEbLsaqrdWbiP8XAPBrI8na
WxbFFOmHXTcTzhqpUDgyMv10fQtkBg==
=bgLc
-----END PGP SIGNATURE-----
Merge tag 's390-5.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
- a couple of fixes for storage key handling relevant for debugging
- add cond_resched into potentially slow subchannels scanning loop
- fixes for PF/VF linking and to ignore stale PCI configuration request
events
* tag 's390-5.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/pci: fix PF/VF linking on hot plug
s390/pci: re-introduce zpci_remove_device()
s390/pci: fix zpci_bus_link_virtfn()
s390/ptrace: fix storage key handling
s390/runtime_instrumentation: fix storage key handling
s390/pci: ignore stale configuration request event
s390/cio: add cond_resched() in the slow_eval_known_fn() loop
* selftests fix for new binutils
* MMU notifier fix for arm64
-----BEGIN PGP SIGNATURE-----
iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAl9ARnoUHHBib256aW5p
QHJlZGhhdC5jb20ACgkQv/vSX3jHroP2YAf/dgLrPm4y4jxm7Aiz3/txqrHEwogT
ZtvnzqUPb6+vkFrkop8QMOPw7A8NCfkn3/6sWbyUN5ObgOG1pxKyPraeN3ZdsDoR
KGwv6P0dKgI8B4UuGEMe9GazXv+oOv8+bSUJnE+HZiUHzJKlX4HJbxDwUhvSSatY
qYCZb/Uzqundh79TYULa7oI1/3F15A2J1zQPe4QgkToH9tsVB8PVfkH5uPJPp64M
DTm5+qgwwsBULFaAuuo3FTs9f3pWJxn8GOuico1Sm+RnR53mhbUJggUfFzP0rwzZ
Emevunje5r1rluFs+JWeNtflGH0gI4CLak7jvlOOBjrNb5XJgUSbzLXxkA==
=Jwic
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
- PAE and PKU bugfixes for x86
- selftests fix for new binutils
- MMU notifier fix for arm64
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: arm64: Only reschedule if MMU_NOTIFIER_RANGE_BLOCKABLE is not set
KVM: Pass MMU notifier range flags to kvm_unmap_hva_range()
kvm: x86: Toggling CR4.PKE does not load PDPTEs in PAE mode
kvm: x86: Toggling CR4.SMAP does not load PDPTEs in PAE mode
KVM: x86: fix access code passed to gva_to_gpa
selftests: kvm: Use a shorter encoding to clear RAX
23 fixes in 5 drivers (qla2xxx, ufs, scsi_debug, fcoe, zfcp). The
bulk of the changes are in qla2xxx and ufs and all are mostly small
and definitely don't impact the core.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
-----BEGIN PGP SIGNATURE-----
iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCX0CxgiYcamFtZXMuYm90
dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishVI9AP40cRrH
p0wrE1fKUyj+LbtnWrrHUXsuknS3Sf58zyPeEAEA3qxxLspTxWgLuSnT/KC2gqFB
Kv/XJyKM9CnRg7Uo4mo=
=GRmA
-----END PGP SIGNATURE-----
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"23 fixes in 5 drivers (qla2xxx, ufs, scsi_debug, fcoe, zfcp). The bulk
of the changes are in qla2xxx and ufs and all are mostly small and
definitely don't impact the core"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (23 commits)
Revert "scsi: qla2xxx: Disable T10-DIF feature with FC-NVMe during probe"
Revert "scsi: qla2xxx: Fix crash on qla2x00_mailbox_command"
scsi: qla2xxx: Fix null pointer access during disconnect from subsystem
scsi: qla2xxx: Check if FW supports MQ before enabling
scsi: qla2xxx: Fix WARN_ON in qla_nvme_register_hba
scsi: qla2xxx: Allow ql2xextended_error_logging special value 1 to be set anytime
scsi: qla2xxx: Reduce noisy debug message
scsi: qla2xxx: Fix login timeout
scsi: qla2xxx: Indicate correct supported speeds for Mezz card
scsi: qla2xxx: Flush I/O on zone disable
scsi: qla2xxx: Flush all sessions on zone disable
scsi: qla2xxx: Use MBX_TOV_SECONDS for mailbox command timeout values
scsi: scsi_debug: Fix scp is NULL errors
scsi: zfcp: Fix use-after-free in request timeout handlers
scsi: ufs: No need to send Abort Task if the task in DB was cleared
scsi: ufs: Clean up completed request without interrupt notification
scsi: ufs: Improve interrupt handling for shared interrupts
scsi: ufs: Fix interrupt error message for shared interrupts
scsi: ufs-pci: Add quirk for broken auto-hibernate for Intel EHL
scsi: ufs-mediatek: Fix incorrect time to wait link status
...
- Restore range parsing error check
- Workaround PCI range parsing with missing 'device_type' now required
- Correct description of 'phy-connection-type'
- Fix erroneous matching on 'snps,dw-pcie' by 'intel,lgm-pcie' schema
- A couple of grammar and whitespace fixes
- Update Shawn Guo's email
-----BEGIN PGP SIGNATURE-----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=3Xgj
-----END PGP SIGNATURE-----
Merge tag 'devicetree-fixes-for-5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree fixes from Rob Herring:
"Another set of DT fixes:
- restore range parsing error check
- workaround PCI range parsing with missing 'device_type' now
required
- correct description of 'phy-connection-type'
- fix erroneous matching on 'snps,dw-pcie' by 'intel,lgm-pcie' schema
- a couple of grammar and whitespace fixes
- update Shawn Guo's email"
* tag 'devicetree-fixes-for-5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
dt-bindings: vendor-prefixes: Remove trailing whitespace
dt-bindings: net: correct description of phy-connection-type
dt-bindings: PCI: intel,lgm-pcie: Fix matching on all snps,dw-pcie instances
of: address: Work around missing device_type property in pcie nodes
dt: writing-schema: Miscellaneous grammar fixes
dt-bindings: Use Shawn Guo's preferred e-mail for i.MX bindings
of/address: check for invalid range.cpu_addr
When an MMU notifier call results in unmapping a range that spans multiple
PGDs, we end up calling into cond_resched_lock() when crossing a PGD boundary,
since this avoids running into RCU stalls during VM teardown. Unfortunately,
if the VM is destroyed as a result of OOM, then blocking is not permitted
and the call to the scheduler triggers the following BUG():
| BUG: sleeping function called from invalid context at arch/arm64/kvm/mmu.c:394
| in_atomic(): 1, irqs_disabled(): 0, non_block: 1, pid: 36, name: oom_reaper
| INFO: lockdep is turned off.
| CPU: 3 PID: 36 Comm: oom_reaper Not tainted 5.8.0 #1
| Hardware name: QEMU QEMU Virtual Machine, BIOS 0.0.0 02/06/2015
| Call trace:
| dump_backtrace+0x0/0x284
| show_stack+0x1c/0x28
| dump_stack+0xf0/0x1a4
| ___might_sleep+0x2bc/0x2cc
| unmap_stage2_range+0x160/0x1ac
| kvm_unmap_hva_range+0x1a0/0x1c8
| kvm_mmu_notifier_invalidate_range_start+0x8c/0xf8
| __mmu_notifier_invalidate_range_start+0x218/0x31c
| mmu_notifier_invalidate_range_start_nonblock+0x78/0xb0
| __oom_reap_task_mm+0x128/0x268
| oom_reap_task+0xac/0x298
| oom_reaper+0x178/0x17c
| kthread+0x1e4/0x1fc
| ret_from_fork+0x10/0x30
Use the new 'flags' argument to kvm_unmap_hva_range() to ensure that we
only reschedule if MMU_NOTIFIER_RANGE_BLOCKABLE is set in the notifier
flags.
Cc: <stable@vger.kernel.org>
Fixes: 8b3405e345 ("kvm: arm/arm64: Fix locking for kvm_free_stage2_pgd")
Cc: Marc Zyngier <maz@kernel.org>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: James Morse <james.morse@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
Message-Id: <20200811102725.7121-3-will@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The 'flags' field of 'struct mmu_notifier_range' is used to indicate
whether invalidate_range_{start,end}() are permitted to block. In the
case of kvm_mmu_notifier_invalidate_range_start(), this field is not
forwarded on to the architecture-specific implementation of
kvm_unmap_hva_range() and therefore the backend cannot sensibly decide
whether or not to block.
Add an extra 'flags' parameter to kvm_unmap_hva_range() so that
architectures are aware as to whether or not they are permitted to block.
Cc: <stable@vger.kernel.org>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: James Morse <james.morse@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
Message-Id: <20200811102725.7121-2-will@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The phy-connection-type parameter is described in ePAPR 1.1:
Specifies interface type between the Ethernet device and a physical
layer (PHY) device. The value of this property is specific to the
implementation.
Signed-off-by: Madalin Bucur <madalin.bucur@oss.nxp.com>
Link: https://lore.kernel.org/r/1597917724-11127-1-git-send-email-madalin.bucur@oss.nxp.com
Signed-off-by: Rob Herring <robh@kernel.org>
-----BEGIN PGP SIGNATURE-----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=dLiS
-----END PGP SIGNATURE-----
Merge tag 'io_uring-5.9-2020-08-21' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
- Make sure the head link cancelation includes async work
- Get rid of kiocb_wait_page_queue_init(), makes no sense to have it as
a separate function since you moved it into io_uring itself
- io_import_iovec cleanups (Pavel, me)
- Use system_unbound_wq for ring exit work, to avoid spawning tons of
these if we have tons of rings exiting at the same time
- Fix req->flags overflow flag manipulation (Pavel)
* tag 'io_uring-5.9-2020-08-21' of git://git.kernel.dk/linux-block:
io_uring: kill extra iovec=NULL in import_iovec()
io_uring: comment on kfree(iovec) checks
io_uring: fix racy req->flags modification
io_uring: use system_unbound_wq for ring exit work
io_uring: cleanup io_import_iovec() of pre-mapped request
io_uring: get rid of kiocb_wait_page_queue_init()
io_uring: find and cancel head link async work on files exit
The intel,lgm-pcie binding is matching on all snps,dw-pcie instances
which is wrong. Add a custom 'select' entry to fix this.
Fixes: e54ea45a49 ("dt-bindings: PCI: intel: Add YAML schemas for the PCIe RC controller")
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: linux-pci@vger.kernel.org
Reviewed-by: Dilip Kota <eswara.kota@linux.intel.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Alexei Starovoitov says:
====================
pull-request: bpf 2020-08-21
The following pull-request contains BPF updates for your *net* tree.
We've added 11 non-merge commits during the last 5 day(s) which contain
a total of 12 files changed, 78 insertions(+), 24 deletions(-).
The main changes are:
1) three fixes in BPF task iterator logic, from Yonghong.
2) fix for compressed dwarf sections in vmlinux, from Jiri.
3) fix xdp attach regression, from Andrii.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
* The CLINT driver has been split in two: one to handle the M-mode CLINT
(memory mapped and used on NOMMU systems) and one to handle the S-mode CLINT
(via SBI).
* The addition of SiFive's drivers to rv32_defconfig
-----BEGIN PGP SIGNATURE-----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=MBvG
-----END PGP SIGNATURE-----
Merge tag 'riscv-for-linus-5.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- The CLINT driver has been split in two: one to handle the M-mode
CLINT (memory mapped and used on NOMMU systems) and one to handle the
S-mode CLINT (via SBI).
- The addition of SiFive's drivers to rv32_defconfig
* tag 'riscv-for-linus-5.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Add SiFive drivers to rv32_defconfig
dt-bindings: timer: Add CLINT bindings
RISC-V: Remove CLINT related code from timer and arch
clocksource/drivers: Add CLINT timer driver
RISC-V: Add mechanism to provide custom IPI operations
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQRTLbB6QfY48x44uB6AXGG7T9hjvgUCX0ALjQAKCRCAXGG7T9hj
voZ2AQCXYVDclEXoNwkD6sS0RuVSc4T6ypEzeGM6tP4Z/VInaAD/eJ8zP+aJx9wL
oeTPsOEJzAax6Xj/c+tQ7maCQdxFpQQ=
=K3yj
-----END PGP SIGNATURE-----
Merge tag 'for-linus-5.9-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
"One build fix and a minor fix for suppressing a useless warning when
booting a Xen dom0 via UEFI"
* tag 'for-linus-5.9-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
Fix build error when CONFIG_ACPI is not set/enabled:
efi: avoid error message when booting under Xen
- Fix re-enabling of resources in dev_pm_opp_set_rate() (Rajendra
Nayak).
- Fix OPP table reference counting in error paths (Stephen Boyd).
-----BEGIN PGP SIGNATURE-----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=7DWg
-----END PGP SIGNATURE-----
Merge tag 'pm-5.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix a few issues in the operating performance points (OPP)
framework.
Specifics:
- Fix re-enabling of resources in dev_pm_opp_set_rate() (Rajendra
Nayak)
- Fix OPP table reference counting in error paths (Stephen Boyd)"
* tag 'pm-5.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
opp: Enable resources again if they were disabled earlier
opp: Put opp table in dev_pm_opp_set_rate() if _set_opp_bw() fails
opp: Put opp table in dev_pm_opp_set_rate() for empty tables
clang static analysis reports this problem
b53_common.c:1583:13: warning: The left expression of the compound
assignment is an uninitialized value. The computed value will
also be garbage
ent.port &= ~BIT(port);
~~~~~~~~ ^
ent is set by a successful call to b53_arl_read(). Unsuccessful
calls are caught by an switch statement handling specific returns.
b32_arl_read() calls b53_arl_op_wait() which fails with the
unhandled -ETIMEDOUT.
So add -ETIMEDOUT to the switch statement. Because
b53_arl_op_wait() already prints out a message, do not add another
one.
Fixes: 1da6df85c6 ("net: dsa: b53: Implement ARL add/del/dump operations")
Signed-off-by: Tom Rix <trix@redhat.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
