Daniel Borkmann says:
====================
pull-request: bpf 2018-01-18
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Fix a divide by zero due to wrong if (src_reg == 0) check in
64-bit mode. Properly handle this in interpreter and mask it
also generically in verifier to guard against similar checks
in JITs, from Eric and Alexei.
2) Fix a bug in arm64 JIT when tail calls are involved and progs
have different stack sizes, from Daniel.
3) Reject stores into BPF context that are not expected BPF_STX |
BPF_MEM variant, from Daniel.
4) Mark dst reg as unknown on {s,u}bounds adjustments when the
src reg has derived bounds from dead branches, from Daniel.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Don't change endianness when assigning vlan value in cxgb4_tc_flower
code when processing flow match parameters. The value gets converted
to network order as part of filtering code in set_filter_wr.
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
For ethtype_key = ETH_P_IPV6, set filter type as 1 in cxgb4_tc_flower
code when processing flow match parameters.
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The new helper would check if the pfn belongs to the page. For huge
pages it checks if the PFN is within range covered by the huge page.
The helper is used in check_pte(). The original code the helper replaces
had two call to page_to_pfn(). page_to_pfn() is relatively costly.
Although current GCC is able to optimize code to have one call, it's
better to do this explicitly.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Adds support for the current lineup of Xbox One controllers from PDP
(Performance Designed Products). These controllers are very picky with
their initialization sequence and require an additional 2 packets before
they send any input reports.
Signed-off-by: Mark Furneaux <mark@furneaux.ca>
Reviewed-by: Cameron Gutman <aicommander@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Replace the original license statement with the SPDX identifier.
Update also the copyright owner adding myself as co-owner of the
copyright.
Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This suppresses printing an error message during probe of the TI DaVinci
MMC driver when the error is EPROBE_DEFER.
Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This changes module_platform_driver_probe() to module_platform_driver()
in the TI DaVinci MMC driver.
On device tree systems, we can get a -EPROBE_DEFER when using a pinmux
for the CD GPIO, which results in the driver never loading because
module_platform_driver_probe() prevents it from being re-probed.
So, we replace module_platform_driver_probe() with
module_platform_driver() and removed the __init attributes accordingly.
Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
When CONFIG_PM is disabled, we get a warning about the clock handling
being unused:
drivers/mmc/host/tmio_mmc_core.c:937:13: error: 'tmio_mmc_clk_disable' defined but not used [-Werror=unused-function]
static void tmio_mmc_clk_disable(struct tmio_mmc_host *host)
^~~~~~~~~~~~~~~~~~~~
drivers/mmc/host/tmio_mmc_core.c:929:12: error: 'tmio_mmc_clk_enable' defined but not used [-Werror=unused-function]
static int tmio_mmc_clk_enable(struct tmio_mmc_host *host)
^~~~~~~~~~~~~~~~~~~
As the clock handling is now done elsewhere, this is only used when
power management is enabled. We could make the functions as __maybe_unused,
but since there is already an #ifdef section, it seems easier to move
the helpers closer to their callers.
Fixes: b21fc29438 ("mmc: tmio: move clk_enable/disable out of tmio_mmc_host_probe()")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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
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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).
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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>
GCC-4.4.4 raises errors when assigning a parameter in an anonymous
union, leading to this kind of failure:
drivers/mtd/nand/marvell_nand.c:1936:
warning: missing braces around initializer
warning: (near initialization for '(anonymous)[1].<anonymous>')
error: unknown field 'data' specified in initializer
error: unknown field 'addr' specified in initializer
Work around the situation by naming these unions.
Fixes: 8878b126df ("mtd: nand: add ->exec_op() implementation")
Reported-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Tested-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The function marvell_nfc_init_dma() allocates a DMA buffer without the
GFP_KERNEL modifier, that triggers this warning:
"marvell_nfc_init_dma() error: no modifiers for allocation."
Fix this by using (GFP_KERNEL | GFP_DMA) instead of only GFP_DMA as the
probe happens in non-interrupt context.
Fixes: 02f26ecf8c ("mtd: nand: add reworked Marvell NAND controller driver")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.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>
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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.
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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 previous patch removed all users of these two functions. Hence
also remove the functions themselves.
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Make sure that calling blk_mq_run_hw_queue() or
blk_mq_kick_requeue_list() triggers a queue run without delay even
if blk_mq_delay_run_hw_queue() has been called recently and if its
delay has not yet expired.
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Most blk-mq functions have a name that follows the pattern blk_mq_${action}.
However, the function name blk_mq_request_direct_issue is an exception.
Hence rename this function. This patch does not change any functionality.
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
- 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.
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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 NVMe fixes for 4.16 from Christoph.
* 'nvme-4.16' of git://git.infradead.org/nvme:
nvme-pci: clean up SMBSZ bit definitions
nvme-pci: clean up CMB initialization
nvme-fc: correct hang in nvme_ns_remove()
nvme-fc: fix rogue admin cmds stalling teardown
nvmet: release a ns reference in nvmet_req_uninit if needed
nvme-fabrics: fix memory leak when parsing host ID option
nvme: fix comment typos in nvme_create_io_queues
nvme: host delete_work and reset_work on separate workqueues
nvme-pci: allocate device queues storage space at probe
nvme-pci: serialize pci resets
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.
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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.
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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
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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
...
