If valid netdevice is not found for RoCE, GID table should not be
searched with NULL netdevice.
Doing so causes the search routines to ignore the netdev argument and may
match the wrong GID table entry if the netdev is deleted.
Fixes: abae1b71dd ("IB/cma: cma_validate_port should verify the port and netdevice")
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Tetsuo reported random crashes under memory pressure on 32-bit x86
system and tracked down to change that introduced
page_vma_mapped_walk().
The root cause of the issue is the faulty pointer math in check_pte().
As ->pte may point to an arbitrary page we have to check that they are
belong to the section before doing math. Otherwise it may lead to weird
results.
It wasn't noticed until now as mem_map[] is virtually contiguous on
flatmem or vmemmap sparsemem. Pointer arithmetic just works against all
'struct page' pointers. But with classic sparsemem, it doesn't because
each section memap is allocated separately and so consecutive pfns
crossing two sections might have struct pages at completely unrelated
addresses.
Let's restructure code a bit and replace pointer arithmetic with
operations on pfns.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reported-and-tested-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Acked-by: Michal Hocko <mhocko@suse.com>
Fixes: ace71a19ce ("mm: introduce page_vma_mapped_walk()")
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Helmut reported a bug about division by zero while
running traffic and doing physical cable pull test.
When the cable unplugged the ppms become zero, so when
dividing the current ppms by the previous ppms in the
next dim iteration there is division by zero.
This patch prevent this division for both ppms and epms.
Fixes: c3164d2fc4 ("net/mlx5e: Added BW check for DIM decision mechanism")
Reported-by: Helmut Grauer <helmut.grauer@de.ibm.com>
Signed-off-by: Talat Batheesh <talatb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull x86 pti fixes from Thomas Gleixner:
"A small set of fixes for the meltdown/spectre mitigations:
- Make kprobes aware of retpolines to prevent probes in the retpoline
thunks.
- Make the machine check exception speculation protected. MCE used to
issue an indirect call directly from the ASM entry code. Convert
that to a direct call into a C-function and issue the indirect call
from there so the compiler can add the retpoline protection,
- Make the vmexit_fill_RSB() assembly less stupid
- Fix a typo in the PTI documentation"
* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/retpoline: Optimize inline assembler for vmexit_fill_RSB
x86/pti: Document fix wrong index
kprobes/x86: Disable optimizing on the function jumps to indirect thunk
kprobes/x86: Blacklist indirect thunk functions for kprobes
retpoline: Introduce start/end markers of indirect thunk
x86/mce: Make machine check speculation protected
Pull x86 kexec fix from Thomas Gleixner:
"A single fix for the WBINVD issue introduced by the SME support which
causes kexec fails on non AMD/SME capable CPUs. Issue WBINVD only when
the CPU has SME and avoid doing so in a loop"
[ Side note: this patch fixes the problem, but it isn't entirely clear
why it is required. The wbinvd should just work regardless, but there
seems to be some system - as opposed to CPU - issue, since the wbinvd
causes more problems later in the shutdown sequence, but wbinvd
instructions while the system is still active are not problematic.
Possibly some SMI or pending machine check issue on the affected system ]
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Rework wbinvd, hlt operation in stop_this_cpu()
Pull irq fix from Thomas Gleixner:
"A single fix for the new matrix allocator to prevent vector exhaustion
by certain network drivers which allocate gazillions of unused vectors
which cannot be put into reservation mode due to MSI and the lack of
MSI entry masking.
The fix/workaround is to spread the vectors across CPUs by searching
the supplied target CPU mask for the CPU with the smallest number of
allocated vectors"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irq/matrix: Spread interrupts on allocation
Pull alpha fixes from Matt Turner:
"A build fix and a regression fix"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha:
alpha/PCI: Fix noname IRQ level detection
alpha: extend memset16 to EV6 optimised routines
Commit bacf6b499e ("x86/mm: Use a struct to reduce parameters for SME
PGD mapping") moved some parameters into a structure.
The structure was large enough to trigger the stack protection canary in
sme_encrypt_kernel which doesn't work this early, causing reboots.
Mark sme_encrypt_kernel appropriately to not use the canary.
Fixes: bacf6b499e ("x86/mm: Use a struct to reduce parameters for SME PGD mapping")
Signed-off-by: Laura Abbott <labbott@redhat.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The conversion of the alpha architecture PCI host bridge legacy IRQ
mapping/swizzling to the new PCI host bridge map/swizzle hooks carried
out through:
commit 0e4c2eeb75 ("alpha/PCI: Replace pci_fixup_irqs() call with
host bridge IRQ mapping hooks")
implies that IRQ for devices are now allocated through pci_assign_irq()
function in pci_device_probe() that is called when a driver matching a
device is found in order to probe the device through the device driver.
Alpha noname platforms required IRQ level programming to be executed
in sio_fixup_irq_levels(), that is called in noname_init_pci(), a
platform hook called within a subsys_initcall.
In noname_init_pci(), present IRQs are detected through
sio_collect_irq_levels() that check the struct pci_dev->irq number
to detect if an IRQ has been allocated for the device.
By the time sio_collect_irq_levels() is called, some devices may still
have not a matching driver loaded to match them (eg loadable module)
therefore their IRQ allocation is still pending - which means that
sio_collect_irq_levels() does not programme the correct IRQ level for
those devices, causing their IRQ handling to be broken when the device
driver is actually loaded and the device is probed.
Fix the issue by adding code in the noname map_irq() function
(noname_map_irq()) that, whilst mapping/swizzling the IRQ line, it also
ensures that the correct IRQ level programming is executed at platform
level, fixing the issue.
Fixes: 0e4c2eeb75 ("alpha/PCI: Replace pci_fixup_irqs() call with
host bridge IRQ mapping hooks")
Reported-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: stable@vger.kernel.org # 4.14
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Mikulas Patocka <mpatocka@redhat.com>
Cc: Meelis Roos <mroos@linux.ee>
Signed-off-by: Matt Turner <mattst88@gmail.com>
ARM:
* fix incorrect huge page mappings on systems using the contiguous hint
for hugetlbfs
* support alternative GICv4 init sequence
* correctly implement the ARM SMCC for HVC and SMC handling
PPC:
* add KVM IOCTL for reporting vulnerability and workaround status
s390:
* provide userspace interface for branch prediction changes in firmware
x86:
* use correct macros for bits
-----BEGIN PGP SIGNATURE-----
iQEcBAABCAAGBQJaY3/eAAoJEED/6hsPKofo64kH/16SCSA9pKJTf39+jLoCPzbp
tlhzxoaqb9cPNMQBAk8Cj5xNJ6V4Clwnk8iRWaE6dRI5nWQxnxRHiWxnrobHwUbK
I0zSy+SywynSBnollKzLzQrDUBZ72fv3oLwiYEYhjMvs0zW6Q/vg10WERbav912Q
bv8nb5e8TbvU500ErndKTXOa8/B6uZYkMVjBNvAHwb+4AQ7bJgDQs5/qOeXllm8A
MT/SNYop/fkjRP7mQng5XYzoO+70tbe0hWpOQGgBnduzrbkNNvZtYtovusHYytLX
PAB7DDPbLZm5L2HBo4zvKgTHIoHTxU0X2yfUDzt7O151O2WSyqBRC3y1tpj6xa8=
=GnNJ
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Radim Krčmář:
"ARM:
- fix incorrect huge page mappings on systems using the contiguous
hint for hugetlbfs
- support alternative GICv4 init sequence
- correctly implement the ARM SMCC for HVC and SMC handling
PPC:
- add KVM IOCTL for reporting vulnerability and workaround status
s390:
- provide userspace interface for branch prediction changes in
firmware
x86:
- use correct macros for bits"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: s390: wire up bpb feature
KVM: PPC: Book3S: Provide information about hardware/firmware CVE workarounds
KVM/x86: Fix wrong macro references of X86_CR0_PG_BIT and X86_CR4_PAE_BIT in kvm_valid_sregs()
arm64: KVM: Fix SMCCC handling of unimplemented SMC/HVC calls
KVM: arm64: Fix GICv4 init when called from vgic_its_create
KVM: arm/arm64: Check pagesize when allocating a hugepage at Stage 2
Some final MIPS fixes for 4.15, including important build fixes and a
MAINTAINERS update:
- Add myself as MIPS co-maintainer.
- Fix various all*config build failures (particularly as a result of
switching the default MIPS platform to the "generic" platform).
- Fix GCC7 build failures (duplicate const and questionable calls to
missing __multi3 intrinsic on mips64r6).
- Fix warnings when CPU Idle is enabled (4.14).
- Fix AR7 serial output (since 3.17).
- Fix ralink platform_get_irq error checking (since 3.12).
-----BEGIN PGP SIGNATURE-----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=rHbt
-----END PGP SIGNATURE-----
Merge tag 'mips_fixes_4.15_2' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips
Pull MIPS fixes from James Hogan:
"Some final MIPS fixes for 4.15, including important build fixes and a
MAINTAINERS update:
- Add myself as MIPS co-maintainer.
- Fix various all*config build failures (particularly as a result of
switching the default MIPS platform to the "generic" platform).
- Fix GCC7 build failures (duplicate const and questionable calls to
missing __multi3 intrinsic on mips64r6).
- Fix warnings when CPU Idle is enabled (4.14).
- Fix AR7 serial output (since 3.17).
- Fix ralink platform_get_irq error checking (since 3.12)"
* tag 'mips_fixes_4.15_2' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips:
MAINTAINERS: Add James as MIPS co-maintainer
MIPS: Fix undefined reference to physical_memsize
MIPS: Implement __multi3 for GCC7 MIPS64r6 builds
MIPS: mm: Fix duplicate "const" on insn_table_MM
MIPS: CM: Drop WARN_ON(vp != 0)
MIPS: ralink: Fix platform_get_irq's error checking
MIPS: Fix CPS SMP NS16550 UART defaults
MIPS: BCM47XX Avoid compile error with MIPS allnoconfig
MIPS: RB532: Avoid undefined mac_pton without GENERIC_NET_UTILS
MIPS: RB532: Avoid undefined early_serial_setup() without SERIAL_8250_CONSOLE
MIPS: ath25: Avoid undefined early_serial_setup() without SERIAL_8250_CONSOLE
MIPS: AR7: ensure the port type's FCR value is used
The new firmware interfaces for branch prediction behaviour changes
are transparently available for the guest. Nevertheless, there is
new state attached that should be migrated and properly resetted.
Provide a mechanism for handling reset, migration and VSIE.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
[Changed capability number to 152. - Radim]
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
One fix for SAS attached SATA CD-ROMs. It turns out that the libata
handling of CD devices relies on the SCSI error handler, so disable
async aborts (which don't start the error handler) for these devices.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
-----BEGIN PGP SIGNATURE-----
iQJaBAABCABEFiEERylv2ugWAYZdTacQBWvsc5kRk3gFAlpibTgmHGphbWVzLmJv
dHRvbWxleUBoYW5zZW5wYXJ0bmVyc2hpcC5jb20ACgkQBWvsc5kRk3h26Q//dPkL
pddipZ2IdnEZ3FPqI6hHgxevoOzhLvl7gNHXnGnxMQT6A65AAVFm1bPaBAgVH+4g
aF2pQ9rjY0o+fszpUSIM+W8YpQFOIVEBsIzFbHubHRuKZ8cq6yPFJyWIySmOZU1S
/6UjIeyYjjS0vySU5VoCPVdRupHDRSIw0Hgp1xuEslt5eV2clPFbZC9Ec1+N0wmX
Iv1JmvRO4MZrG0nmSp30kln1SvL9zwz1TkfIYI0y/YnBdFHi/EBGe/9D/hBrZFkk
uGlpVJX6jtqIIlC/4KIVXPeOCgdEWGpFeC39sQrDt7/H+hg9UkXcyzNT6CsE7gsg
uh1oyBE7+xIgc6oVoEcGfK/NZ2ALwicV4sbIk7kh4K0GJIW5FY3j53DzSe8FWLm5
CQGLEIGcqild9SHtOQmp5i3yX3nVHK8cM6+icbtvMTKNCnVimQM408mz0r418RpE
BeKAzXZ5K7xUxZUFTLExbMQe2aOq0cy5wwZzPJEYqH4dko9Q7YbUISGWuXoSQ46Q
mjAR4j/B2LRQRAthzf2JHmhmKe6qGqV0AH6yB020FhcECcz1pAiDm30oYcRXCCSp
CVElL5xFtdEQyJLz4t1cXfncmwmZ4h4pm0naO3yOWKj4O1FWFIRXfObaQ44hAdn2
brxu+ewMIGyBSy1d8erhjzvzl1rRIw4qLUCQMHc=
=g/Cs
-----END PGP SIGNATURE-----
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fix from James Bottomley:
"One fix for SAS attached SATA CD-ROMs. It turns out that the libata
handling of CD devices relies on the SCSI error handler, so disable
async aborts (which don't start the error handler) for these devices"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: libsas: Disable asynchronous aborts for SATA devices
- Fix DM thinp btree corruption seen when inserting a new key/value pair
into a full root node.
- Fix DM thinp btree removal deadlock due to artificially low number of
allowed concurrent locks allowed.
- Fix possible DM crypt corruption if kernel keyring service is used.
Only affects ciphers using following IVs: essiv, lmk and tcw.
- Two DM crypt device initialization error checking fixes.
- Fix DM integrity to allow use of async ciphers that require DMA.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABAgAGBQJaYmmiAAoJEMUj8QotnQNa55QIANbqG20YBvLhejdIvoOC4npL
Lk6PGfAGjftUBocnaua3BMaCCHnPF0DCmVqEZ8Bb07eIUoOygrAbEgJ/o1GjA1Ku
6oLmw+yMls0cu3Qk0aOF/5Z/TYl/fNgYAH9g7oMy4g4DNeD9nEKdRsz/DF2JTVWH
t0AUnmMHFLXP001TBW5k4SnC0jqM6JCwd/dn9rlSW6oE5mNLo22+A0vPdpW2tVNW
odP2mXAlLQUDTrn9wtAKp7yBJKqbIO56Odv2hQ48VOBjSTB/GMue5OY2tibfS2ci
/qo4OzVwzBDAB+bU8MN6AP6MqimvyPUeCeyH20X8Zzbmsd2Mwz+qd+WOsHrNiNg=
=R3/E
-----END PGP SIGNATURE-----
Merge tag 'for-4.15/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
"All fixes marked for stable:
- Fix DM thinp btree corruption seen when inserting a new key/value
pair into a full root node.
- Fix DM thinp btree removal deadlock due to artificially low number
of allowed concurrent locks allowed.
- Fix possible DM crypt corruption if kernel keyring service is used.
Only affects ciphers using following IVs: essiv, lmk and tcw.
- Two DM crypt device initialization error checking fixes.
- Fix DM integrity to allow use of async ciphers that require DMA"
* tag 'for-4.15/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm crypt: fix error return code in crypt_ctr()
dm crypt: wipe kernel key copy after IV initialization
dm integrity: don't store cipher request on the stack
dm crypt: fix crash by adding missing check for auth key size
dm btree: fix serious bug in btree_split_beneath()
dm thin metadata: THIN_MAX_CONCURRENT_LOCKS should be 6
The kmalloc() failure to allocate memory generates enough information
and doesn't need to be accompanied by another driver print.
Fixes: d69a24e036 ("IB/mlx5: Move IB event processing onto a workqueue")
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Now that all callers who care about RoCE addresses have been
converted to use rdma_read_gids() simplify rdma_addr_get_sgid()
to only support real GID addresses.
Callers should only use it for OPA and IB transports.
The now deleted implementation for RoCE has several bugs related to IPv6
support and incorrect/inconsistent 'GID' addresses compared to the CM
paths.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Use the newly introduced rdma_read_gids() to read the SGID and DGID for
the connection which returns GID correctly for RoCE transport as well.
rdma_addr_get_dgid() for RoCE for client side connections returns MAC
address, instead of DGID.
rdma_addr_get_sgid() for RoCE doesn't return correct SGID for IPv6 and
when more than one IP address is assigned to the netdevice.
Therefore use transport agnostic rdma_read_gids() API provided by rdma_cm
module.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Make use of rdma_read_gids() API to read SGID and DGID which returns
correct GIDs for RoCE and other transports.
rdma_addr_get_dgid() for RoCE for client side connections returns MAC
address, instead of DGID.
rdma_addr_get_sgid() for RoCE doesn't return correct SGID for IPv6 and
when more than one IP address is assigned to the netdevice.
Therefore use transport agnostic rdma_read_gids() API provided by rdma_cm
module.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This patch introduces an API that allows legacy applications to query
GIDs for a rdma_cm_id which is used during connection establishment.
GIDs are stored and created differently for iWarp, IB and RoCE transports.
Therefore rdma_read_gids() returns GID for all the transports hiding
such internal details to caller.
It is usable for client side and server side connections.
In general continued use of GID based addressing outside of IB is
discouraged, so rdma_read_gids() should not be used by any new ULPs.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
- The conversion of enums into their actual numbers to display
in the event format file had an off-by-one bug, that could cause
an enum not to be converted, and break user space parsing tools.
- A fix to a previous fix to bring back the context recursion checks.
The interrupt case checks for NMI, IRQ and softirq, but the softirq
returned the same number regardless if it was set or not, although
the logic would force it to be set if it were hit.
-----BEGIN PGP SIGNATURE-----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=O7m4
-----END PGP SIGNATURE-----
Merge tag 'trace-v4.15-rc4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
"Two more small fixes
- The conversion of enums into their actual numbers to display in the
event format file had an off-by-one bug, that could cause an enum
not to be converted, and break user space parsing tools.
- A fix to a previous fix to bring back the context recursion checks.
The interrupt case checks for NMI, IRQ and softirq, but the softirq
returned the same number regardless if it was set or not, although
the logic would force it to be set if it were hit"
* tag 'trace-v4.15-rc4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Fix converting enum's from the map in trace_event_eval_update()
ring-buffer: Fix duplicate results in mapping context to bits in recursive lock
Pull input fixes from Dmitry Torokhov:
- a fix for use-after-free in Synaptics RMI4 driver
- correction to multitouch contact tracking on certain ALPS touchpads
(which got broken when we tried to fix the 2-finger scrolling)
- touchpad on Lenovo T640p is switched over to SMbus/RMI
- a few device node refcount fixes
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: synaptics-rmi4 - prevent UAF reported by KASAN
Input: ALPS - fix multi-touch decoding on SS4 plus touchpads
Input: synaptics - Lenovo Thinkpad T460p devices should use RMI
Input: of_touchscreen - add MODULE_LICENSE
Input: 88pm860x-ts - fix child-node lookup
Input: twl6040-vibra - fix child-node lookup
Input: twl4030-vibra - fix sibling-node lookup
Pull i2c fixes from Wolfram Sang:
"Two bugfixes for the I2C core: Lixing Wang fixed a refcounting problem
with DT nodes. Jeremy Compostella fixed a buffer overflow possibility
when using a 'don't use' ioctl interface directly"
* 'i2c/for-current-fixed' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: core-smbus: prevent stack corruption on read I2C_BLOCK_DATA
i2c: core: decrease reference count of device node in i2c_unregister_device
Pull libata fixlet from Tejun Heo:
"This just adds one more entry for liteon optical drives to the device
blacklist for large IOs.
The change is very low risk"
* 'for-4.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
libata: apply MAX_SEC_1024 to all LITEON EP1 series devices
Pull cgroup fix from Tejun Heo:
"cgroup.threads should be delegatable (ie. a container should be able
to write to it from inside) but was missing the flag.
The change is very low risk"
* 'for-4.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: make cgroup.threads delegatable
Pull workqueue fixlet from Tejun Heo:
"One patch to add touch_nmi_watchdog() while dumping workqueue debug
messages to avoid triggering the lockup detector spuriously.
The change is very low risk"
* 'for-4.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: avoid hard lockups in show_workqueue_state()
We have various small DT fixes, and one important regression fix:
The recent device tree bugfixes that were intended to address issues that
'dtc' started warning about in 4.15 fixed various USB PHY device nodes,
but it turns out that we had code that depended on those nodes being
incorrect and the probe failing with a particular error code. With the
workaround we can also deal with correct device nodes.
The DT fixes include:
- Allwinner A10 and A20 had the display pipeline set up incorrectly
(introduced in v4.15)
- The Altera PMU lacked an interrupt-parent (never worked)
- Pin muxing on the Openblocks A7 (never worked)
- Clocks might get set up wrong on Armada 7K/8K (4.15 regression)
We now have additional device tree patches to address all the remaining
warnings introduced in 4.15, but decided to queue them for 4.16 instead,
to avoid risking another regression like the USB PHY thing mentioned
above.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=57ve
-----END PGP SIGNATURE-----
Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Arnd Bergmann:
"We have various small DT fixes, and one important regression fix:
The recent device tree bugfixes that were intended to address issues
that 'dtc' started warning about in 4.15 fixed various USB PHY device
nodes, but it turns out that we had code that depended on those nodes
being incorrect and the probe failing with a particular error code.
With the workaround we can also deal with correct device nodes.
The DT fixes include:
- Allwinner A10 and A20 had the display pipeline set up incorrectly
(introduced in v4.15)
- The Altera PMU lacked an interrupt-parent (never worked)
- Pin muxing on the Openblocks A7 (never worked)
- Clocks might get set up wrong on Armada 7K/8K (4.15 regression)
We now have additional device tree patches to address all the
remaining warnings introduced in 4.15, but decided to queue them for
4.16 instead, to avoid risking another regression like the USB PHY
thing mentioned above.
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
phy: work around 'phys' references to usb-nop-xceiv devices
ARM: sunxi_defconfig: Enable CMA
arm64: dts: socfpga: add missing interrupt-parent
ARM: dts: sun[47]i: Fix display backend 1 output to TCON0 remote endpoint
ARM64: dts: marvell: armada-cp110: Fix clock resources for various node
ARM: dts: da850-lcdk: Remove leading 0x and 0s from unit address
ARM: dts: kirkwood: fix pin-muxing of MPP7 on OpenBlocks A7
More than we'd like after rc8, but nothing very alarming either, just tying up
loose ends before the release:
Since we changed powernv to use cpufreq_get() from show_cpuinfo(), we see
warnings with PREEMPT enabled. But the preempt_disable() in show_cpuinfo()
doesn't actually prevent CPU hotplug as it suggests, so remove it.
Two updates to the recently merged RFI flush code. Wire up the generic sysfs
file to report the status, and add a debugfs file to allow enabling/disabling it
at runtime.
Two updates to xmon, one to add the RFI flush related fields to the paca dump,
and another to not use hashed pointers in the paca dump.
And one minor fix to add a missing include of linux/types.h in asm/hvcall.h, not
seen to break the build in upstream, but correct anyway.
Thanks to:
Benjamin Herrenschmidt, Michal Suchanek, Nicholas Piggin.
-----BEGIN PGP SIGNATURE-----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=zgy0
-----END PGP SIGNATURE-----
Merge tag 'powerpc-4.15-8' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"More than we'd like after rc8, but nothing very alarming either, just
tying up loose ends before the release:
Since we changed powernv to use cpufreq_get() from show_cpuinfo(), we
see warnings with PREEMPT enabled. But the preempt_disable() in
show_cpuinfo() doesn't actually prevent CPU hotplug as it suggests, so
remove it.
Two updates to the recently merged RFI flush code. Wire up the generic
sysfs file to report the status, and add a debugfs file to allow
enabling/disabling it at runtime.
Two updates to xmon, one to add the RFI flush related fields to the
paca dump, and another to not use hashed pointers in the paca dump.
And one minor fix to add a missing include of linux/types.h in
asm/hvcall.h, not seen to break the build in upstream, but correct
anyway.
Thanks to: Benjamin Herrenschmidt, Michal Suchanek, Nicholas Piggin"
* tag 'powerpc-4.15-8' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/pseries: include linux/types.h in asm/hvcall.h
powerpc/64s: Allow control of RFI flush via debugfs
powerpc/64s: Wire up cpu_show_meltdown()
powerpc: Don't preempt_disable() in show_cpuinfo()
powerpc/xmon: Don't print hashed pointers in paca dump
powerpc/xmon: Add RFI flush related fields to paca dump
-----BEGIN PGP SIGNATURE-----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=D+JQ
-----END PGP SIGNATURE-----
Merge tag 'drm-fixes-for-v4.15-rc9' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Nouveau, i915, vmwgfx and sun4i regression fixes.
The i915 change fixes a display corruption problem introduced in 4.15,
the nouveau changes are for regressions in 4.15, one of the vmwgfx
fixes goes back a little further, the other is a 4.15 regression fix,
the 3 sun4i changes fix blank HDMI output on those devices"
* tag 'drm-fixes-for-v4.15-rc9' of git://people.freedesktop.org/~airlied/linux:
drm/nouveau/mmu/mcp77: fix regressions in stolen memory handling
drm/nouveau/bar/gk20a: Avoid bar teardown during init
drm/nouveau/drm/nouveau: Pass the proper arguments to nvif_object_map_handle()
drm/vmwgfx: fix memory corruption with legacy/sou connectors
drm/vmwgfx: Fix a boot time warning
drm/i915: Fix deadlock in i830_disable_pipe()
drm/i915: Redo plane sanitation during readout
drm/i915: Add .get_hw_state() method for planes
drm/sun4i: hdmi: Add missing rate halving check in sun4i_tmds_determine_rate
drm/sun4i: hdmi: Fix incorrect assignment in sun4i_tmds_determine_rate
drm/sun4i: hdmi: Check for unset best_parent in sun4i_tmds_determine_rate
Force __builtin_constant_p to evaluate whether the argument to atomic_add
& atomic_sub is constant in the front-end before optimisations which
can lead GCC to output a call to __bad_increment_for_ia64_fetch_and_add().
See GCC bugzilla 83653.
Signed-off-by: Jakub Jelinek <jakub@redhat.com>
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Without this patch, I drown in a sea of unknown attribute warnings
Link: http://lkml.kernel.org/r/20180117024539.27354-1-willy@infradead.org
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Since kernel 4.9, the thread_info has been moved into task_struct, no
longer locates at the bottom of kernel stack.
See commits c65eacbe29 ("sched/core: Allow putting thread_info into
task_struct") and 15f4eae70d ("x86: Move thread_info into
task_struct").
Before fix:
(gdb) set $current = $lx_current()
(gdb) p $lx_thread_info($current)
$1 = {flags = 1470918301}
(gdb) p $current.thread_info
$2 = {flags = 2147483648}
After fix:
(gdb) p $lx_thread_info($current)
$1 = {flags = 2147483648}
(gdb) p $current.thread_info
$2 = {flags = 2147483648}
Link: http://lkml.kernel.org/r/20180118210159.17223-1-imxikangjie@gmail.com
Fixes: 15f4eae70d ("x86: Move thread_info into task_struct")
Signed-off-by: Xi Kangjie <imxikangjie@gmail.com>
Acked-by: Jan Kiszka <jan.kiszka@siemens.com>
Acked-by: Kieran Bingham <kbingham@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
There are a couple of problems with the decodecode script and arm64:
1. AArch64 objdump refuses to disassemble .4byte directives as instructions,
insisting that they are data values and displaying them as:
a94153f3 .word 0xa94153f3 <-- trapping instruction
This is resolved by using the .inst directive instead.
2. Disassembly of branch instructions attempts to provide the target as
an offset from a symbol, e.g.:
0: 34000082 cbz w2, 10 <.text+0x10>
however this falls foul of the grep -v, which matches lines containing
".text" and ends up removing all branch instructions from the dump.
This patch resolves both issues by using the .inst directive for 4-byte
quantities on arm64 and stripping the resulting binaries (as is done on
arm already) to remove the mapping symbols.
Link: http://lkml.kernel.org/r/1506596147-23630-1-git-send-email-will.deacon@arm.com
Signed-off-by: Will Deacon <will.deacon@arm.com>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When setting page_owner = on, the following warning can be seen in the
boot log:
WARNING: CPU: 0 PID: 0 at mm/page_alloc.c:2537 drain_all_pages+0x171/0x1a0
Modules linked in:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.15.0-rc7-next-20180109-1-default+ #7
Hardware name: Dell Inc. Latitude E7470/0T6HHJ, BIOS 1.11.3 11/09/2016
RIP: 0010:drain_all_pages+0x171/0x1a0
Call Trace:
init_page_owner+0x4e/0x260
start_kernel+0x3e6/0x4a6
? set_init_arg+0x55/0x55
secondary_startup_64+0xa5/0xb0
Code: c5 ed ff 89 df 48 c7 c6 20 3b 71 82 e8 f9 4b 52 00 3b 05 d7 0b f8 00 89 c3 72 d5 5b 5d 41 5
This warning is shown because we are calling drain_all_pages() in
init_early_allocated_pages(), but mm_percpu_wq is not up yet, it is being
set up later on in kernel_init_freeable() -> init_mm_internals().
Link: http://lkml.kernel.org/r/20180109153921.GA13070@techadventures.net
Signed-off-by: Oscar Salvador <osalvador@techadventures.net>
Acked-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Ayush Mittal <ayush.m@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
James reported a bug in swap paging-in from his testing. It is that
do_swap_page doesn't release locked page so system hang-up happens due
to a deadlock on PG_locked.
It was introduced by 0bcac06f27 ("mm, swap: skip swapcache for swapin
of synchronous device") because I missed swap cache hit places to update
swapcache variable to work well with other logics against swapcache in
do_swap_page.
This patch fixes it.
Debugged by James Bottomley.
Link: http://lkml.kernel.org/r/<1514407817.4169.4.camel@HansenPartnership.com>
Link: http://lkml.kernel.org/r/20180102235606.GA19438@bbox
Signed-off-by: Minchan Kim <minchan@kernel.org>
Reported-by: James Bottomley <James.Bottomley@hansenpartnership.com>
Acked-by: Hugh Dickins <hughd@google.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull networking fixes from David Miller:
1) Fix BPF divides by zero, from Eric Dumazet and Alexei Starovoitov.
2) Reject stores into bpf context via st and xadd, from Daniel
Borkmann.
3) Fix a memory leak in TUN, from Cong Wang.
4) Disable RX aggregation on a specific troublesome configuration of
r8152 in a Dell TB16b dock.
5) Fix sw_ctx leak in tls, from Sabrina Dubroca.
6) Fix program replacement in cls_bpf, from Daniel Borkmann.
7) Fix uninitialized station_info structures in cfg80211, from Johannes
Berg.
8) Fix miscalculation of transport header offset field in flow
dissector, from Eric Dumazet.
9) Fix LPM tree leak on failure in mlxsw driver, from Ido Schimmel.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (29 commits)
ibmvnic: Fix IPv6 packet descriptors
ibmvnic: Fix IP offload control buffer
ipv6: don't let tb6_root node share routes with other node
ip6_gre: init dev->mtu and dev->hard_header_len correctly
mlxsw: spectrum_router: Free LPM tree upon failure
flow_dissector: properly cap thoff field
fm10k: mark PM functions as __maybe_unused
cfg80211: fix station info handling bugs
netlink: reset extack earlier in netlink_rcv_skb
can: af_can: canfd_rcv(): replace WARN_ONCE by pr_warn_once
can: af_can: can_rcv(): replace WARN_ONCE by pr_warn_once
bpf: mark dst unknown on inconsistent {s, u}bounds adjustments
bpf: fix cls_bpf on filter replace
Net: ethernet: ti: netcp: Fix inbound ping crash if MTU size is greater than 1500
tls: reset crypto_info when do_tls_setsockopt_tx fails
tls: return -EBUSY if crypto_info is already set
tls: fix sw_ctx leak
net/tls: Only attach to sockets in ESTABLISHED state
net: fs_enet: do not call phy_stop() in interrupts
r8152: disable RX aggregation on Dell TB16 dock
...
The generated assembler for the C fill RSB inline asm operations has
several issues:
- The C code sets up the loop register, which is then immediately
overwritten in __FILL_RETURN_BUFFER with the same value again.
- The C code also passes in the iteration count in another register, which
is not used at all.
Remove these two unnecessary operations. Just rely on the single constant
passed to the macro for the iterations.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: David Woodhouse <dwmw@amazon.co.uk>
Cc: dave.hansen@intel.com
Cc: gregkh@linuxfoundation.org
Cc: torvalds@linux-foundation.org
Cc: arjan@linux.intel.com
Link: https://lkml.kernel.org/r/20180117225328.15414-1-andi@firstfloor.org
Since indirect jump instructions will be replaced by jump
to __x86_indirect_thunk_*, those jmp instruction must be
treated as an indirect jump. Since optprobe prohibits to
optimize probes in the function which uses an indirect jump,
it also needs to find out the function which jump to
__x86_indirect_thunk_* and disable optimization.
Add a check that the jump target address is between the
__indirect_thunk_start/end when optimizing kprobe.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: David Woodhouse <dwmw@amazon.co.uk>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linux-foundation.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/151629212062.10241.6991266100233002273.stgit@devbox
Mark __x86_indirect_thunk_* functions as blacklist for kprobes
because those functions can be called from anywhere in the kernel
including blacklist functions of kprobes.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: David Woodhouse <dwmw@amazon.co.uk>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linux-foundation.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/151629209111.10241.5444852823378068683.stgit@devbox
Introduce start/end markers of __x86_indirect_thunk_* functions.
To make it easy, consolidate .text.__x86.indirect_thunk.* sections
to one .text.__x86.indirect_thunk section and put it in the
end of kernel text section and adds __indirect_thunk_start/end
so that other subsystem (e.g. kprobes) can identify it.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: David Woodhouse <dwmw@amazon.co.uk>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linux-foundation.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/151629206178.10241.6828804696410044771.stgit@devbox
The machine check idtentry uses an indirect branch directly from the low
level code. This evades the speculation protection.
Replace it by a direct call into C code and issue the indirect call there
so the compiler can apply the proper speculation protection.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by:Borislav Petkov <bp@alien8.de>
Reviewed-by: David Woodhouse <dwmw@amazon.co.uk>
Niced-by: Peter Zijlstra <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/alpine.DEB.2.20.1801181626290.1847@nanos
Stefan Wahren reports a problem with a warning fix that was merged
for v4.15: we had lots of device nodes with a 'phys' property pointing
to a device node that is not compliant with the binding documented in
Documentation/devicetree/bindings/phy/phy-bindings.txt
This generally works because USB HCD drivers that support both the generic
phy subsystem and the older usb-phy subsystem ignore most errors from
phy_get() and related calls and then use the usb-phy driver instead.
However, it turns out that making the usb-nop-xceiv device compatible with
the generic-phy binding changes the phy_get() return code from -EINVAL to
-EPROBE_DEFER, and the dwc2 usb controller driver for bcm2835 now returns
-EPROBE_DEFER from its probe function rather than ignoring the failure,
breaking all USB support on raspberry-pi when CONFIG_GENERIC_PHY is
enabled. The same code is used in the dwc3 driver and the usb_add_hcd()
function, so a reasonable assumption would be that many other platforms
are affected as well.
I have reviewed all the related patches and concluded that "usb-nop-xceiv"
is the only USB phy that is affected by the change, and since it is by far
the most commonly referenced phy, all the other USB phy drivers appear
to be used in ways that are are either safe in DT (they don't use the
'phys' property), or in the driver (they already ignore -EPROBE_DEFER
from generic-phy when usb-phy is available).
To work around the problem, this adds a special case to _of_phy_get()
so we ignore any PHY node that is compatible with "usb-nop-xceiv",
as we know that this can never load no matter how much we defer. In the
future, we might implement a generic-phy driver for "usb-nop-xceiv"
and then remove this workaround.
Since we generally want older kernels to also want to work with the
fixed devicetree files, it would be good to backport the patch into
stable kernels as well (3.13+ are possibly affected), even though they
don't contain any of the patches that may have caused regressions.
Fixes: 014d6da6cb ARM: dts: bcm283x: Fix DTC warnings about missing phy-cells
Fixes: c5bbf358b7 arm: dts: nspire: Add missing #phy-cells to usb-nop-xceiv
Fixes: 44e5dced2e arm: dts: marvell: Add missing #phy-cells to usb-nop-xceiv
Fixes: f568f6f554 ARM: dts: omap: Add missing #phy-cells to usb-nop-xceiv
Fixes: d745d5f277 ARM: dts: imx51-zii-rdu1: Add missing #phy-cells to usb-nop-xceiv
Fixes: 915fbe59cb ARM: dts: imx: Add missing #phy-cells to usb-nop-xceiv
Link: https://marc.info/?l=linux-usb&m=151518314314753&w=2
Link: https://patchwork.kernel.org/patch/10158145/
Cc: stable@vger.kernel.org
Cc: Felipe Balbi <balbi@kernel.org>
Cc: Eric Anholt <eric@anholt.net>
Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
Acked-by: Rob Herring <robh@kernel.org>
Tested-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The DRM driver most notably, but also out of tree drivers (for now) like
the VPU or GPU drivers, are quite big consumers of large, contiguous memory
buffers. However, the sunxi_defconfig doesn't enable CMA in order to
mitigate that, which makes them almost unusable.
Enable it to make sure it somewhat works.
Cc: <stable@vger.kernel.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
If add state fails in case of device offload, netdev refcount
will be negative since gc task is attempting to dev_free this state.
This is fixed by putting NULL in state dev field.
Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Boris Pismeny <borisp@mellanox.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This adds a new ioctl, KVM_PPC_GET_CPU_CHAR, that gives userspace
information about the underlying machine's level of vulnerability
to the recently announced vulnerabilities CVE-2017-5715,
CVE-2017-5753 and CVE-2017-5754, and whether the machine provides
instructions to assist software to work around the vulnerabilities.
The ioctl returns two u64 words describing characteristics of the
CPU and required software behaviour respectively, plus two mask
words which indicate which bits have been filled in by the kernel,
for extensibility. The bit definitions are the same as for the
new H_GET_CPU_CHARACTERISTICS hypercall.
There is also a new capability, KVM_CAP_PPC_GET_CPU_CHAR, which
indicates whether the new ioctl is available.
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
follow-up fix
-----BEGIN PGP SIGNATURE-----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=PwII
-----END PGP SIGNATURE-----
Merge tag 'drm-intel-fixes-2018-01-18' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
Display corruption regression bugfix with both a prep patch and a
follow-up fix
* tag 'drm-intel-fixes-2018-01-18' of git://anongit.freedesktop.org/drm/drm-intel:
drm/i915: Fix deadlock in i830_disable_pipe()
drm/i915: Redo plane sanitation during readout
drm/i915: Add .get_hw_state() method for planes
Parav Pandit