Like any other verbs objects, CQ shouldn't fail during destroy, but
mlx5_ib didn't follow this contract with mixed IB verbs objects with
DEVX. Such mix causes to the situation where FW and kernel are fully
interdependent on the reference counting of each side.
Kernel verbs and drivers that don't have DEVX flows shouldn't fail.
Fixes: e39afe3d6d ("RDMA: Convert CQ allocations to be under core responsibility")
Link: https://lore.kernel.org/r/20200907120921.476363-7-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
The ib_alloc_cq*() and ib_free_cq*() are solely kernel verbs to manage CQs
and doesn't need extra indirection just to call same functions with
constant parameter NULL as udata.
Link: https://lore.kernel.org/r/20200907120921.476363-6-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
In similar way to other IB objects, restore the ability to return error on
SRQ destroy. Strictly speaking, this change is not necessary, and provided
here to ensure a symmetrical interface like other destroy functions.
Fixes: 68e326dea1 ("RDMA: Handle SRQ allocations by IB/core")
Link: https://lore.kernel.org/r/20200907120921.476363-5-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
The HW release can fail and leave the system in limbo state, where SRQ is
removed from the table, but can't be destroyed later. In every reentry,
the initial xa_erase_irq() check will fail.
Rewrite the erase logic to keep index, but don't store the entry
itself. By doing it, we can safely reinsert entry back in the case of
destroy failure.
Link: https://lore.kernel.org/r/20200907120921.476363-4-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Like any other IB verbs objects, AH are refcounted by ib_core. The release
of those objects are controlled by ib_core with promise that AH destroy
can't fail.
Being SW object for now, this change makes dealloc_ah() to behave like any
other destroy IB flows.
Fixes: d345691471 ("RDMA: Handle AH allocations by IB/core")
Link: https://lore.kernel.org/r/20200907120921.476363-3-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
The IB verbs objects are counted by the kernel and ib_core ensures that
deallocate PD will success so it will be called once all other objects
that depends on PD will be released. This is achieved by managing various
reference counters on such objects.
The mlx5 driver didn't follow this standard flow when allowed DEVX objects
that are not managed by ib_core to be interleaved with the ones under
ib_core responsibility.
In such interleaved scenarios deallocate command can fail and ib_core will
leave uobject in internal DB and attempt to clean it later to free
resources anyway.
This change partially restores returned value from dealloc_pd() for all
drivers, but keeping in mind that non-DEVX devices and kernel verbs paths
shouldn't fail.
Fixes: 21a428a019 ("RDMA: Handle PD allocations by IB/core")
Link: https://lore.kernel.org/r/20200907120921.476363-2-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
The rnbd_server module's communication manager (cm) initialization depends
on the registration of the "network namespace subsystem" of the RDMA CM
agent module. As such, when the kernel is configured to load the
rnbd_server and the RDMA cma module during initialization; and if the
rnbd_server module is initialized before RDMA cma module, a null ptr
dereference occurs during the RDMA bind operation.
Call trace:
Call Trace:
? xas_load+0xd/0x80
xa_load+0x47/0x80
cma_ps_find+0x44/0x70
rdma_bind_addr+0x782/0x8b0
? get_random_bytes+0x35/0x40
rtrs_srv_cm_init+0x50/0x80
rtrs_srv_open+0x102/0x180
? rnbd_client_init+0x6e/0x6e
rnbd_srv_init_module+0x34/0x84
? rnbd_client_init+0x6e/0x6e
do_one_initcall+0x4a/0x200
kernel_init_freeable+0x1f1/0x26e
? rest_init+0xb0/0xb0
kernel_init+0xe/0x100
ret_from_fork+0x22/0x30
Modules linked in:
CR2: 0000000000000015
All this happens cause the cm init is in the call chain of the module
init, which is not a preferred practice.
So remove the call to rdma_create_id() from the module init call chain.
Instead register rtrs-srv as an ib client, which makes sure that the
rdma_create_id() is called only when an ib device is added.
Fixes: 9cb8374804 ("RDMA/rtrs: server: main functionality")
Link: https://lore.kernel.org/r/20200907103106.104530-1-haris.iqbal@cloud.ionos.com
Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Md Haris Iqbal <haris.iqbal@cloud.ionos.com>
Reviewed-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Currently it triggers a WARN_ON and then goes ahead and destroys the
uobject anyhow, leaking any driver memory.
The only place that leaks driver memory should be during FD close() in
uverbs_destroy_ufile_hw().
Drivers are only allowed to fail destroy uobjects if they guarantee
destroy will eventually succeed. uverbs_destroy_ufile_hw() provides the
loop to give the driver that chance.
Link: https://lore.kernel.org/r/20200902081708.746631-1-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
In preparation for unconditionally passing the struct tasklet_struct
pointer to all tasklet callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly.
Link: https://lore.kernel.org/r/20200903060637.424458-6-allen.lkml@gmail.com
Signed-off-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
In preparation for unconditionally passing the struct tasklet_struct
pointer to all tasklet callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly.
Link: https://lore.kernel.org/r/20200903060637.424458-5-allen.lkml@gmail.com
Signed-off-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
In preparation for unconditionally passing the struct tasklet_struct
pointer to all tasklet callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly.
Link: https://lore.kernel.org/r/20200903060637.424458-4-allen.lkml@gmail.com
Signed-off-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
In preparation for unconditionally passing the struct tasklet_struct
pointer to all tasklet callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly.
Link: https://lore.kernel.org/r/20200903060637.424458-3-allen.lkml@gmail.com
Signed-off-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
In preparation for unconditionally passing the struct tasklet_struct
pointer to all tasklet callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly.
Link: https://lore.kernel.org/r/20200903060637.424458-2-allen.lkml@gmail.com
Signed-off-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
The SRQ can be destroyed right before mlx5_cmd_get_srq is called.
In such case the latter will return NULL instead of expected SRQ.
Fixes: e126ba97db ("mlx5: Add driver for Mellanox Connect-IB adapters")
Link: https://lore.kernel.org/r/20200830084010.102381-5-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
In ucma_process_join(), if the call to xa_alloc() fails, the function will
return without freeing mc. Fix this by jumping to the correct line.
In the process I renamed the jump labels to something more memorable for
extra clarity.
Link: https://lore.kernel.org/r/20200902162454.332828-1-alex.dewar90@gmail.com
Addresses-Coverity-ID: 1496814 ("Resource leak")
Fixes: 95fe51096b ("RDMA/ucma: Remove mc_list and rely on xarray")
Signed-off-by: Alex Dewar <alex.dewar90@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
As qedr driver supports both RoCE and iWarp, make sure to set the
max_pkeys only when running in RoCE mode.
Link: https://lore.kernel.org/r/20200827141655.406185-1-kamalheib1@gmail.com
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Acked-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This function has a lot of gotos which could be replaced by simple
returns, making the function tidier and less bug prone.
Link: https://lore.kernel.org/r/20200825171242.448447-2-alex.dewar90@gmail.com
Signed-off-by: Alex Dewar <alex.dewar90@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Commit 36a8f01cd2 ("IB/qib: Add congestion control agent
implementation") erroneously marked a couple of switch cases as /*
FALLTHROUGH */, which were later converted to fallthrough statements by
commit df561f6688 ("treewide: Use fallthrough pseudo-keyword"). This
triggered a Coverity warning about unreachable code.
Remove the fallthrough statements.
Link: https://lore.kernel.org/r/20200825171242.448447-1-alex.dewar90@gmail.com
Addresses-Coverity: ("Unreachable code")
Fixes: 36a8f01cd2 ("IB/qib: Add congestion control agent implementation")
Signed-off-by: Alex Dewar <alex.dewar90@gmail.com>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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Merge tag 'v5.9-rc3' into rdma.git for-next
Required due to dependencies in following patches.
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Change rxe pools to use kzalloc instead of kmem_cache to allocate memory
for rxe objects. The pools are not really necessary and they trigger
hardened user copy warnings as the ioctl framework copies the QP number
directly to userspace.
Also the general project to move object alloation to the core code will
eventually clean these out anyhow.
Link: https://lore.kernel.org/r/20200827163535.2632-1-rpearson@hpe.com
Signed-off-by: Bob Pearson <rpearson@hpe.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
The original function returns unsigned long and 0 on failure.
Fixes: 4a35339958 ("RDMA/umem: Add API to find best driver supported page size in an MR")
Link: https://lore.kernel.org/r/0-v1-982a13cc5c6d+501ae-fix_best_pgsz_stub_jgg@nvidia.com
Reviewed-by: Gal Pressman <galpress@amazon.com>
Acked-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Drivers that fail destroy can cause uverbs to leak uobjects. Drivers are
required to always eventually destroy their ubojects, so trigger a WARN_ON
to detect this driver bug.
Link: https://lore.kernel.org/r/0-v1-b1e0ed400ba9+f7-warn_destroy_ufile_hw_jgg@nvidia.com
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
The UDP source port number in RoCE v2 is used to create entropy for
network routers (ECMP), load balancers and 802.3ad link aggregation
switching that are not aware of RoCE IB headers. Considering that the IB
core has achieved a new interface to get a hashed value of it, the fixed
value of it in QPC and UD WQE in hns driver could be fixed and the port
number is to be set dynamically now.
For QPC of RC, the value could be hashed from flow_lable if the user pass
it in or from remote qpn and local qpn. For WQE of UD, it is set according
to fl or as a random value.
Link: https://lore.kernel.org/r/1598002289-8611-1-git-send-email-liweihang@huawei.com
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Pull crypto fixes from Herbert Xu:
- fix regression in af_alg that affects iwd
- restore polling delay in qat
- fix double free in ingenic on error path
- fix potential build failure in sa2ul due to missing Kconfig dependency
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: af_alg - Work around empty control messages without MSG_MORE
crypto: sa2ul - add Kconfig selects to fix build error
crypto: ingenic - Drop kfree for memory allocated with devm_kzalloc
crypto: qat - add delay before polling mailbox
- Move disabling of the local APIC after invoking fixup_irqs() to ensure
that interrupts which are incoming are noted in the IRR and not ignored.
- Unbreak affinity setting. The rework of the entry code reused the
regular exception entry code for device interrupts. The vector number is
pushed into the errorcode slot on the stack which is then lifted into an
argument and set to -1 because that's regs->orig_ax which is used in
quite some places to check whether the entry came from a syscall. But it
was overlooked that orig_ax is used in the affinity cleanup code to
validate whether the interrupt has arrived on the new target. It turned
out that this vector check is pointless because interrupts are never
moved from one vector to another on the same CPU. That check is a
historical leftover from the time where x86 supported multi-CPU
affinities, but not longer needed with the now strict single CPU
affinity. Famous last words ...
- Add a missing check for an empty cpumask into the matrix allocator. The
affinity change added a warning to catch the case where an interrupt is
moved on the same CPU to a different vector. This triggers because a
condition with an empty cpumask returns an assignment from the allocator
as the allocator uses for_each_cpu() without checking the cpumask for
being empty. The historical inconsistent for_each_cpu() behaviour of
ignoring the cpumask and unconditionally claiming that CPU0 is in the
mask striked again. Sigh.
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Merge tag 'x86-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"Three interrupt related fixes for X86:
- Move disabling of the local APIC after invoking fixup_irqs() to
ensure that interrupts which are incoming are noted in the IRR and
not ignored.
- Unbreak affinity setting.
The rework of the entry code reused the regular exception entry
code for device interrupts. The vector number is pushed into the
errorcode slot on the stack which is then lifted into an argument
and set to -1 because that's regs->orig_ax which is used in quite
some places to check whether the entry came from a syscall.
But it was overlooked that orig_ax is used in the affinity cleanup
code to validate whether the interrupt has arrived on the new
target. It turned out that this vector check is pointless because
interrupts are never moved from one vector to another on the same
CPU. That check is a historical leftover from the time where x86
supported multi-CPU affinities, but not longer needed with the now
strict single CPU affinity. Famous last words ...
- Add a missing check for an empty cpumask into the matrix allocator.
The affinity change added a warning to catch the case where an
interrupt is moved on the same CPU to a different vector. This
triggers because a condition with an empty cpumask returns an
assignment from the allocator as the allocator uses for_each_cpu()
without checking the cpumask for being empty. The historical
inconsistent for_each_cpu() behaviour of ignoring the cpumask and
unconditionally claiming that CPU0 is in the mask struck again.
Sigh.
plus a new entry into the MAINTAINER file for the HPE/UV platform"
* tag 'x86-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq/matrix: Deal with the sillyness of for_each_cpu() on UP
x86/irq: Unbreak interrupt affinity setting
x86/hotplug: Silence APIC only after all interrupts are migrated
MAINTAINERS: Add entry for HPE Superdome Flex (UV) maintainers
- Revert the platform driver conversion of interrupt chip drivers as it
turned out to create more problems than it solves.
- Fix a trivial typo in the new module helpers which made probing reliably
fail.
- Small fixes in the STM32 and MIPS Ingenic drivers
- The TI firmware rework which had badly managed dependencies and had to
wait post rc1.
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Merge tag 'irq-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
"A set of fixes for interrupt chip drivers:
- Revert the platform driver conversion of interrupt chip drivers as
it turned out to create more problems than it solves.
- Fix a trivial typo in the new module helpers which made probing
reliably fail.
- Small fixes in the STM32 and MIPS Ingenic drivers
- The TI firmware rework which had badly managed dependencies and had
to wait post rc1"
* tag 'irq-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/ingenic: Leave parent IRQ unmasked on suspend
irqchip/stm32-exti: Avoid losing interrupts due to clearing pending bits by mistake
irqchip: Revert modular support for drivers using IRQCHIP_PLATFORM_DRIVER helperse
irqchip: Fix probing deferal when using IRQCHIP_PLATFORM_DRIVER helpers
arm64: dts: k3-am65: Update the RM resource types
arm64: dts: k3-am65: ti-sci-inta/intr: Update to latest bindings
arm64: dts: k3-j721e: ti-sci-inta/intr: Update to latest bindings
irqchip/ti-sci-inta: Add support for INTA directly connecting to GIC
irqchip/ti-sci-inta: Do not store TISCI device id in platform device id field
dt-bindings: irqchip: Convert ti, sci-inta bindings to yaml
dt-bindings: irqchip: ti, sci-inta: Update docs to support different parent.
irqchip/ti-sci-intr: Add support for INTR being a parent to INTR
dt-bindings: irqchip: Convert ti, sci-intr bindings to yaml
dt-bindings: irqchip: ti, sci-intr: Update bindings to drop the usage of gic as parent
firmware: ti_sci: Add support for getting resource with subtype
firmware: ti_sci: Drop unused structure ti_sci_rm_type_map
firmware: ti_sci: Drop the device id to resource type translation
- Make is_idle_task() __always_inline to prevent the compiler from putting
it out of line into the wrong section because it's used inside noinstr
sections.
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Merge tag 'sched-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Thomas Gleixner:
"A single fix for the scheduler:
- Make is_idle_task() __always_inline to prevent the compiler from
putting it out of line into the wrong section because it's used
inside noinstr sections"
* tag 'sched-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched: Use __always_inline on is_idle_task()
- Prevent recursion by using raw_cpu_* operations
- Fixup the interrupt state in the cpu idle code to be consistent
- Push rcu_idle_enter/exit() invocations deeper into the idle path so
that the lock operations are inside the RCU watching sections
- Move trace_cpu_idle() into generic code so it's called before RCU goes
idle.
- Handle raw_local_irq* vs. local_irq* operations correctly
- Move the tracepoints out from under the lockdep recursion handling
which turned out to be fragile and inconsistent.
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Merge tag 'locking-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Thomas Gleixner:
"A set of fixes for lockdep, tracing and RCU:
- Prevent recursion by using raw_cpu_* operations
- Fixup the interrupt state in the cpu idle code to be consistent
- Push rcu_idle_enter/exit() invocations deeper into the idle path so
that the lock operations are inside the RCU watching sections
- Move trace_cpu_idle() into generic code so it's called before RCU
goes idle.
- Handle raw_local_irq* vs. local_irq* operations correctly
- Move the tracepoints out from under the lockdep recursion handling
which turned out to be fragile and inconsistent"
* tag 'locking-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
lockdep,trace: Expose tracepoints
lockdep: Only trace IRQ edges
mips: Implement arch_irqs_disabled()
arm64: Implement arch_irqs_disabled()
nds32: Implement arch_irqs_disabled()
locking/lockdep: Cleanup
x86/entry: Remove unused THUNKs
cpuidle: Move trace_cpu_idle() into generic code
cpuidle: Make CPUIDLE_FLAG_TLB_FLUSHED generic
sched,idle,rcu: Push rcu_idle deeper into the idle path
cpuidle: Fixup IRQ state
lockdep: Use raw_cpu_*() for per-cpu variables
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Merge tag '5.9-rc2-smb-fix' of git://git.samba.org/sfrench/cifs-2.6
Pull cfis fix from Steve French:
"DFS fix for referral problem when using SMB1"
* tag '5.9-rc2-smb-fix' of git://git.samba.org/sfrench/cifs-2.6:
cifs: fix check of tcon dfs in smb1
Revert our removal of PROT_SAO, at least one user expressed an interest in using
it on Power9. Instead don't allow it to be used in guests unless enabled
explicitly at compile time.
A fix for a crash introduced by a recent change to FP handling.
Revert a change to our idle code that left Power10 with no idle support.
One minor fix for the new scv system call path to set PPR.
Fix a crash in our "generic" PMU if branch stack events were enabled.
A fix for the IMC PMU, to correctly identify host kernel samples.
The ADB_PMU powermac code was found to be incompatible with VMAP_STACK, so make
them incompatible in Kconfig until the code can be fixed.
A build fix in drivers/video/fbdev/controlfb.c, and a documentation fix.
Thanks to:
Alexey Kardashevskiy, Athira Rajeev, Christophe Leroy, Giuseppe Sacco,
Madhavan Srinivasan, Milton Miller, Nicholas Piggin, Pratik Rajesh Sampat,
Randy Dunlap, Shawn Anastasio, Vaidyanathan Srinivasan.
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Merge tag 'powerpc-5.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Revert our removal of PROT_SAO, at least one user expressed an
interest in using it on Power9. Instead don't allow it to be used in
guests unless enabled explicitly at compile time.
- A fix for a crash introduced by a recent change to FP handling.
- Revert a change to our idle code that left Power10 with no idle
support.
- One minor fix for the new scv system call path to set PPR.
- Fix a crash in our "generic" PMU if branch stack events were enabled.
- A fix for the IMC PMU, to correctly identify host kernel samples.
- The ADB_PMU powermac code was found to be incompatible with
VMAP_STACK, so make them incompatible in Kconfig until the code can
be fixed.
- A build fix in drivers/video/fbdev/controlfb.c, and a documentation
fix.
Thanks to Alexey Kardashevskiy, Athira Rajeev, Christophe Leroy,
Giuseppe Sacco, Madhavan Srinivasan, Milton Miller, Nicholas Piggin,
Pratik Rajesh Sampat, Randy Dunlap, Shawn Anastasio, Vaidyanathan
Srinivasan.
* tag 'powerpc-5.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/32s: Disable VMAP stack which CONFIG_ADB_PMU
Revert "powerpc/powernv/idle: Replace CPU feature check with PVR check"
powerpc/perf: Fix reading of MSR[HV/PR] bits in trace-imc
powerpc/perf: Fix crashes with generic_compat_pmu & BHRB
powerpc/64s: Fix crash in load_fp_state() due to fpexc_mode
powerpc/64s: scv entry should set PPR
Documentation/powerpc: fix malformed table in syscall64-abi
video: fbdev: controlfb: Fix build for COMPILE_TEST=y && PPC_PMAC=n
selftests/powerpc: Update PROT_SAO test to skip ISA 3.1
powerpc/64s: Disallow PROT_SAO in LPARs by default
Revert "powerpc/64s: Remove PROT_SAO support"
Let's try this again... Here are some USB fixes for 5.9-rc3.
This differs from the previous pull request for this release in that:
- the usb gadget patch now does not break some systems, and
actually does what it was intended to do. Many thanks to
Marek Szyprowski for quickly noticing and testing the patch
from Andy Shevchenko to resolve this issue.
- some more new USB quirks have been added to get some new
devices to work properly based on user reports.
Other than that, the original pull request patches are all here, and
they contain:
- usb gadget driver fixes
- xhci driver fixes
- typec fixes
- new quirks and ids
- fixes for USB patches that went into 5.9-rc1.
All of these have been tested in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Let's try this again... Here are some USB fixes for 5.9-rc3.
This differs from the previous pull request for this release in that
the usb gadget patch now does not break some systems, and actually
does what it was intended to do. Many thanks to Marek Szyprowski for
quickly noticing and testing the patch from Andy Shevchenko to resolve
this issue.
Additionally, some more new USB quirks have been added to get some new
devices to work properly based on user reports.
Other than that, the patches are all here, and they contain:
- usb gadget driver fixes
- xhci driver fixes
- typec fixes
- new quirks and ids
- fixes for USB patches that went into 5.9-rc1.
All of these have been tested in linux-next with no reported issues"
* tag 'usb-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (33 commits)
usb: storage: Add unusual_uas entry for Sony PSZ drives
USB: Ignore UAS for JMicron JMS567 ATA/ATAPI Bridge
usb: host: ohci-exynos: Fix error handling in exynos_ohci_probe()
USB: gadget: u_f: Unbreak offset calculation in VLAs
USB: quirks: Ignore duplicate endpoint on Sound Devices MixPre-D
usb: typec: tcpm: Fix Fix source hard reset response for TDA 2.3.1.1 and TDA 2.3.1.2 failures
USB: PHY: JZ4770: Fix static checker warning.
USB: gadget: f_ncm: add bounds checks to ncm_unwrap_ntb()
USB: gadget: u_f: add overflow checks to VLA macros
xhci: Always restore EP_SOFT_CLEAR_TOGGLE even if ep reset failed
xhci: Do warm-reset when both CAS and XDEV_RESUME are set
usb: host: xhci: fix ep context print mismatch in debugfs
usb: uas: Add quirk for PNY Pro Elite
tools: usb: move to tools buildsystem
USB: Fix device driver race
USB: Also match device drivers using the ->match vfunc
usb: host: xhci-tegra: fix tegra_xusb_get_phy()
usb: host: xhci-tegra: otg usb2/usb3 port init
usb: hcd: Fix use after free in usb_hcd_pci_remove()
usb: typec: ucsi: Hold con->lock for the entire duration of ucsi_register_port()
...
a subsequent load can probe the system properly; by Shiju Jose.
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Merge tag 'edac_urgent_for_v5.9_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras
Pull EDAC fix from Borislav Petkov:
"A fix to properly clear ghes_edac driver state on driver remove so
that a subsequent load can probe the system properly (Shiju Jose)"
* tag 'edac_urgent_for_v5.9_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
EDAC/ghes: Fix NULL pointer dereference in ghes_edac_register()
Most of the CPU mask operations behave the same way, but for_each_cpu() and
it's variants ignore the cpumask argument and claim that CPU0 is always in
the mask. This is historical, inconsistent and annoying behaviour.
The matrix allocator uses for_each_cpu() and can be called on UP with an
empty cpumask. The calling code does not expect that this succeeds but
until commit e027fffff7 ("x86/irq: Unbreak interrupt affinity setting")
this went unnoticed. That commit added a WARN_ON() to catch cases which
move an interrupt from one vector to another on the same CPU. The warning
triggers on UP.
Add a check for the cpumask being empty to prevent this.
Fixes: 2f75d9e1c9 ("genirq: Implement bitmap matrix allocator")
Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Commit ef91bb196b ("kernel.h: Silence sparse warning in
lower_32_bits") caused new warnings to show in the fsldma driver, but
that commit was not to blame: it only exposed some very incorrect code
that tried to take the low 32 bits of an address.
That made no sense for multiple reasons, the most notable one being that
that code was intentionally limited to only 32-bit ppc builds, so "only
low 32 bits of an address" was completely nonsensical. There were no
high bits to mask off to begin with.
But even more importantly fropm a correctness standpoint, turning the
address into an integer then caused the subsequent address arithmetic to
be completely wrong too, and the "+1" actually incremented the address
by one, rather than by four.
Which again was incorrect, since the code was reading two 32-bit values
and trying to make a 64-bit end result of it all. Surprisingly, the
iowrite64() did not suffer from the same odd and incorrect model.
This code has never worked, but it's questionable whether anybody cared:
of the two users that actually read the 64-bit value (by way of some C
preprocessor hackery and eventually the 'get_cdar()' inline function),
one of them explicitly ignored the value, and the other one might just
happen to work despite the incorrect value being read.
This patch at least makes it not fail the build any more, and makes the
logic superficially sane. Whether it makes any difference to the code
_working_ or not shall remain a mystery.
Compile-tested-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull i2c fixes from Wolfram Sang:
"A core fix for ACPI matching and two driver bugfixes"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: iproc: Fix shifting 31 bits
i2c: rcar: in slave mode, clear NACK earlier
i2c: acpi: Remove dead code, i.e. i2c_acpi_match_device()
i2c: core: Don't fail PRP0001 enumeration when no ID table exist
- Disable preemption trace in percpu macros since the lockdep code itself
uses percpu variables now and it causes recursions.
- Fix kernel space 4-level paging broken by recent vmem rework.
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Merge tag 's390-5.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
- Disable preemption trace in percpu macros since the lockdep code
itself uses percpu variables now and it causes recursions.
- Fix kernel space 4-level paging broken by recent vmem rework.
* tag 's390-5.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/vmem: fix vmem_add_range for 4-level paging
s390: don't trace preemption in percpu macros
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Merge tag 'for-linus-5.9-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
"Two fixes for Xen: one needed for ongoing work to support virtio with
Xen, and one for a corner case in IRQ handling with Xen"
* tag 'for-linus-5.9-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
arm/xen: Add misuse warning to virt_to_gfn
xen/xenbus: Fix granting of vmalloc'd memory
XEN uses irqdesc::irq_data_common::handler_data to store a per interrupt XEN data pointer which contains XEN specific information.
- Fix tempeerature scale in gsc-hwmon driver
- Fix divide by 0 error in nct7904 driver
- Drop non-existing attribute from pmbus/isl68137 driver
- Fix status check in applesmc driver
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Merge tag 'hwmon-for-v5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
- Fix tempeerature scale in gsc-hwmon driver
- Fix divide by 0 error in nct7904 driver
- Drop non-existing attribute from pmbus/isl68137 driver
- Fix status check in applesmc driver
* tag 'hwmon-for-v5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (gsc-hwmon) Scale temperature to millidegrees
hwmon: (applesmc) check status earlier.
hwmon: (nct7904) Correct divide by 0
hwmon: (pmbus/isl68137) remove READ_TEMPERATURE_1 telemetry for RAA228228
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Merge tag 'block-5.9-2020-08-28' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- nbd timeout fix (Hou)
- device size fix for loop LOOP_CONFIGURE (Martijn)
- MD pull from Song with raid5 stripe size fix (Yufen)
* tag 'block-5.9-2020-08-28' of git://git.kernel.dk/linux-block:
md/raid5: make sure stripe_size as power of two
loop: Set correct device size when using LOOP_CONFIGURE
nbd: restore default timeout when setting it to zero
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Merge tag 'io_uring-5.9-2020-08-28' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"A few fixes in here, all based on reports and test cases from folks
using it. Most of it is stable material as well:
- Hashed work cancelation fix (Pavel)
- poll wakeup signalfd fix
- memlock accounting fix
- nonblocking poll retry fix
- ensure we never return -ERESTARTSYS for reads
- ensure offset == -1 is consistent with preadv2() as documented
- IOPOLL -EAGAIN handling fixes
- remove useless task_work bounce for block based -EAGAIN retry"
* tag 'io_uring-5.9-2020-08-28' of git://git.kernel.dk/linux-block:
io_uring: don't bounce block based -EAGAIN retry off task_work
io_uring: fix IOPOLL -EAGAIN retries
io_uring: clear req->result on IOPOLL re-issue
io_uring: make offset == -1 consistent with preadv2/pwritev2
io_uring: ensure read requests go through -ERESTART* transformation
io_uring: don't use poll handler if file can't be nonblocking read/written
io_uring: fix imbalanced sqo_mm accounting
io_uring: revert consumed iov_iter bytes on error
io-wq: fix hang after cancelling pending hashed work
io_uring: don't recurse on tsk->sighand->siglock with signalfd
Prevent the promotion of the secondary firmware node of a device to
the primary one from leaking a pointer (Heikki Krogerus).
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Merge tag 'devprop-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull device properties framework fix from Rafael Wysocki:
"Prevent the promotion of the secondary firmware node of a device to
the primary one from leaking a pointer (Heikki Krogerus)"
* tag 'devprop-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
device property: Fix the secondary firmware node handling in set_primary_fwnode()
- Avoid redundant rounding to the page size in acpi_os_map_iomem()
to address a recently introduced issue with the EFI memory map
permission check on ARM64 (Ard Biesheuvel).
- Fix acpi_release_memory() to wait until the memory mappings
released by it have been really unmapped (Rafael Wysocki).
- Make the ACPI driver for AMD SoCs (APD) check the return value
of acpi_dev_get_property() to avoid failures in the cases when the
device property under inspection is missing (Furquan Shaikh).
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Merge tag 'acpi-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These fix two recent issues in the ACPI memory mappings management
code and tighten up error handling in the ACPI driver for AMD SoCs
(APD).
Specifics:
- Avoid redundant rounding to the page size in acpi_os_map_iomem() to
address a recently introduced issue with the EFI memory map
permission check on ARM64 (Ard Biesheuvel).
- Fix acpi_release_memory() to wait until the memory mappings
released by it have been really unmapped (Rafael Wysocki).
- Make the ACPI driver for AMD SoCs (APD) check the return value of
acpi_dev_get_property() to avoid failures in the cases when the
device property under inspection is missing (Furquan Shaikh)"
* tag 'acpi-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: OSL: Prevent acpi_release_memory() from returning too early
ACPI: ioremap: avoid redundant rounding to OS page size
ACPI: SoC: APD: Check return value of acpi_dev_get_property()
- Make the recently added Tegra194 cpufreq driver use
read_cpuid_mpir() instead of cpu_logical_map() to avoid
exporting logical_cpu_map (Sumit Gupta).
- Drop the automatic system wakeup event reporting for devices
with pending runtime-resume requests during system-wide suspend
to avoid spurious aborts of the suspend flow (Rafael Wysocki).
- Fix build warning in the intel_pstate driver documentation and
improve the wording in there (Randy Dunlap).
- Clean up two pieces of code in the cpufreq core (Viresh Kumar).
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Merge tag 'pm-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix the recently added Tegra194 cpufreq driver and the handling
of devices using runtime PM during system-wide suspend, improve the
intel_pstate driver documentation and clean up the cpufreq core.
Specifics:
- Make the recently added Tegra194 cpufreq driver use
read_cpuid_mpir() instead of cpu_logical_map() to avoid exporting
logical_cpu_map (Sumit Gupta).
- Drop the automatic system wakeup event reporting for devices with
pending runtime-resume requests during system-wide suspend to avoid
spurious aborts of the suspend flow (Rafael Wysocki).
- Fix build warning in the intel_pstate driver documentation and
improve the wording in there (Randy Dunlap).
- Clean up two pieces of code in the cpufreq core (Viresh Kumar)"
* tag 'pm-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: Use WARN_ON_ONCE() for invalid relation
cpufreq: No need to verify cpufreq_driver in show_scaling_cur_freq()
PM: sleep: core: Fix the handling of pending runtime resume requests
Documentation: fix pm/intel_pstate build warning and wording
cpufreq: replace cpu_logical_map() with read_cpuid_mpir()
