Commit 79bd99596b ("blk: improve order of bio handling in generic_make_request()")
changed current->bio_list so that it did not contain *all* of the
queued bios, but only those submitted by the currently running
make_request_fn.
There are two places which walk the list and requeue selected bios,
and others that check if the list is empty. These are no longer
correct.
So redefine current->bio_list to point to an array of two lists, which
contain all queued bios, and adjust various code to test or walk both
lists.
Signed-off-by: NeilBrown <neilb@suse.com>
Fixes: 79bd99596b ("blk: improve order of bio handling in generic_make_request()")
Signed-off-by: Jens Axboe <axboe@fb.com>
ARM updates from Marc Zyngier:
"vgic updates:
- Honour disabling the ITS
- Don't deadlock when deactivating own interrupts via MMIO
- Correctly expose the lact of IRQ/FIQ bypass on GICv3
I/O virtualization:
- Make KVM_CAP_NR_MEMSLOTS big enough for large guests with
many PCIe devices
General bug fixes:
- Gracefully handle exception generated with syndroms that
the host doesn't understand
- Properly invalidate TLBs on VHE systems"
x86:
- improvements in emulation of VMCLEAR, VMX MSR bitmaps, and VCPU reset
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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 updates from Marc Zyngier:
- vgic updates:
- Honour disabling the ITS
- Don't deadlock when deactivating own interrupts via MMIO
- Correctly expose the lact of IRQ/FIQ bypass on GICv3
- I/O virtualization:
- Make KVM_CAP_NR_MEMSLOTS big enough for large guests with many
PCIe devices
- General bug fixes:
- Gracefully handle exception generated with syndroms that the host
doesn't understand
- Properly invalidate TLBs on VHE systems
x86:
- improvements in emulation of VMCLEAR, VMX MSR bitmaps, and VCPU
reset
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: nVMX: do not warn when MSR bitmap address is not backed
KVM: arm64: Increase number of user memslots to 512
KVM: arm/arm64: Remove KVM_PRIVATE_MEM_SLOTS definition that are unused
KVM: arm/arm64: Enable KVM_CAP_NR_MEMSLOTS on arm/arm64
KVM: Add documentation for KVM_CAP_NR_MEMSLOTS
KVM: arm/arm64: VGIC: Fix command handling while ITS being disabled
arm64: KVM: Survive unknown traps from guests
arm: KVM: Survive unknown traps from guests
KVM: arm/arm64: Let vcpu thread modify its own active state
KVM: nVMX: reset nested_run_pending if the vCPU is going to be reset
kvm: nVMX: VMCLEAR should not cause the vCPU to shut down
KVM: arm/arm64: vgic-v3: Don't pretend to support IRQ/FIQ bypass
arm64: KVM: VHE: Clear HCR_TGE when invalidating guest TLBs
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Merge tag 'extable-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
Pull extable.h fix from Paul Gortmaker:
"Fixup for arch/score after extable.h introduction.
It seems that Guenter is the only one on the planet doing builds for
arch/score -- we don't have compile coverage for it in linux-next or
in the kbuild-bot either. Guenter couldn't even recall where he got
his toolchain, but was kind enough to share it with me so I could
validate this change and also add arch/score to my build coverage.
I sat on this a bit in case there was any other fallout in other arch
dirs, but since this still seems to be the only one, I might as well
send it on its way"
* tag 'extable-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux:
score: Fix implicit includes now failing build after extable change
This reverts commit 7b9f1d16e6 ("clocksource/drivers/tcb_clksrc: Use
32 bit tcb as sched_clock"). In the current state, the kernel warns
against a late registration of the new sched_clock, the printk clock
resets after only a few minutes, and it seems that scheduling can be
affected as well.
Signed-off-by: Romain Izard <romain.izard.pro@gmail.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
getrandom(2). It's faster and arguably more secure than cut-down MD5
that we had been using.
Also do some code cleanup.
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Merge tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random
Pull random updates from Ted Ts'o:
"Change get_random_{int,log} to use the CRNG used by /dev/urandom and
getrandom(2). It's faster and arguably more secure than cut-down MD5
that we had been using.
Also do some code cleanup"
* tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random:
random: move random_min_urandom_seed into CONFIG_SYSCTL ifdef block
random: convert get_random_int/long into get_random_u32/u64
random: use chacha20 for get_random_int/long
random: fix comment for unused random_min_urandom_seed
random: remove variable limit
random: remove stale urandom_init_wait
random: remove stale maybe_reseed_primary_crng
After changing from module.h to extable.h, score builds fail with:
arch/score/kernel/traps.c: In function 'do_ri':
arch/score/kernel/traps.c:248:4: error: implicit declaration of function 'user_disable_single_step'
arch/score/mm/extable.c: In function 'fixup_exception':
arch/score/mm/extable.c:32:38: error: dereferencing pointer to incomplete type
arch/score/mm/extable.c:34:24: error: dereferencing pointer to incomplete type
because extable.h doesn't drag in the same amount of headers as the
module.h did. Add in the headers which were implicitly expected.
Fixes: 90858794c9 ("module.h: remove extable.h include now users have migrated")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
[PG: tweak commit log; refresh for sched header refactoring.]
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
The check for duplicate processor ids happens at boot time based on the
ACPI table contents, but the final sanity checks for a processor happen
at hotplug time.
At hotplug time, where the physical information is available, which might
differ from the ACPI table information, a check for duplicate processor
ids is missing.
Add it to the hotplug checks and rename the function so it better
reflects its purpose.
Signed-off-by: Dou Liyang <douly.fnst@cn.fujitsu.com>
Tested-by: Xiaolong Ye <xiaolong.ye@intel.com>
Cc: rjw@rjwysocki.net
Cc: linux-acpi@vger.kernel.org
Cc: guzheng1@huawei.com
Cc: izumi.taku@jp.fujitsu.com
Cc: lenb@kernel.org
Link: http://lkml.kernel.org/r/1488528147-2279-6-git-send-email-douly.fnst@cn.fujitsu.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
The following commits:
f7c28833c2 ("x86/acpi: Enable acpi to register all possible cpus at
boot time") and 8f54969dc8 ("x86/acpi: Introduce persistent storage
for cpuid <-> apicid mapping")
... registered all the possible CPUs at boot time via ACPI tables to
make the mapping of cpuid <-> apicid fixed. Both enabled and disabled
CPUs could have a logical CPU ID after boot time.
But, ACPI tables are unreliable. the number amd order of Local APIC
entries which depends on the firmware is often inconsistent with the
physical devices. Even if they are consistent, The disabled CPUs which
take up some logical CPU IDs will also make the order discontinuous.
Revert the part of disabled CPUs registration, keep the allocation
logic of logical CPU IDs and also keep some code location changes.
Signed-off-by: Dou Liyang <douly.fnst@cn.fujitsu.com>
Tested-by: Xiaolong Ye <xiaolong.ye@intel.com>
Cc: rjw@rjwysocki.net
Cc: linux-acpi@vger.kernel.org
Cc: guzheng1@huawei.com
Cc: izumi.taku@jp.fujitsu.com
Cc: lenb@kernel.org
Link: http://lkml.kernel.org/r/1488528147-2279-4-git-send-email-douly.fnst@cn.fujitsu.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Revert: dc6db24d24 ("x86/acpi: Set persistent cpuid <-> nodeid mapping when booting")
The mapping of "cpuid <-> nodeid" is established at boot time via ACPI
tables to keep associations of workqueues and other node related items
consistent across cpu hotplug.
But, ACPI tables are unreliable and failures with that boot time mapping
have been reported on machines where the ACPI table and the physical
information which is retrieved at actual hotplug is inconsistent.
Revert the mapping implementation so it can be replaced with a less error
prone approach.
Signed-off-by: Dou Liyang <douly.fnst@cn.fujitsu.com>
Tested-by: Xiaolong Ye <xiaolong.ye@intel.com>
Cc: rjw@rjwysocki.net
Cc: linux-acpi@vger.kernel.org
Cc: guzheng1@huawei.com
Cc: izumi.taku@jp.fujitsu.com
Cc: lenb@kernel.org
Link: http://lkml.kernel.org/r/1488528147-2279-2-git-send-email-douly.fnst@cn.fujitsu.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Here are 2 bugfixes for tty stuff for 4.11-rc2. One of them resolves
the pretty bad bug in the n_hdlc code that Alexander Popov found and
fixed and has been reported everywhere. The other just fixes a samsung
serial driver issue when DMA fails on some systems.
Both have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes frpm Greg KH:
"Here are two bugfixes for tty stuff for 4.11-rc2.
One of them resolves the pretty bad bug in the n_hdlc code that
Alexander Popov found and fixed and has been reported everywhere. The
other just fixes a samsung serial driver issue when DMA fails on some
systems.
Both have been in linux-next with no reported issues"
* tag 'tty-4.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serial: samsung: Continue to work if DMA request fails
tty: n_hdlc: get rid of racy n_hdlc.tbuf
Here are two small build warning fixes for some staging drivers that
Arnd has found on his valiant quest to get the kernel to build properly
with no warnings. Both of these have been in linux-next this week and
resolve the reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg KH:
"Here are two small build warning fixes for some staging drivers that
Arnd has found on his valiant quest to get the kernel to build
properly with no warnings.
Both of these have been in linux-next this week and resolve the
reported issues"
* tag 'staging-4.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: octeon: remove unused variable
staging/vc04_services: add CONFIG_OF dependency
Here is a number of different USB fixes for 4.11-rc2. Seems like there
were a lot of unresolved issues that people have been finding for this
subsystem, and a bunch of good security auditing happening as well from
Johan Hovold. There's the usual batch of gadget driver fixes and xhci
issues resolved as well.
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here is a number of different USB fixes for 4.11-rc2.
Seems like there were a lot of unresolved issues that people have been
finding for this subsystem, and a bunch of good security auditing
happening as well from Johan Hovold. There's the usual batch of gadget
driver fixes and xhci issues resolved as well.
All of these have been in linux-next with no reported issues"
* tag 'usb-4.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (35 commits)
usb: host: xhci-plat: Fix timeout on removal of hot pluggable xhci controllers
usb: host: xhci-dbg: HCIVERSION should be a binary number
usb: xhci: remove dummy extra_priv_size for size of xhci_hcd struct
usb: xhci-mtk: check hcc_params after adding primary hcd
USB: serial: digi_acceleport: fix OOB-event processing
MAINTAINERS: usb251xb: remove reference inexistent file
doc: dt-bindings: usb251xb: mark reg as required
usb: usb251xb: dt: add unit suffix to oc-delay and power-on-time
usb: usb251xb: remove max_{power,current}_{sp,bp} properties
usb-storage: Add ignore-residue quirk for Initio INIC-3619
USB: iowarrior: fix NULL-deref in write
USB: iowarrior: fix NULL-deref at probe
usb: phy: isp1301: Add OF device ID table
usb: ohci-at91: Do not drop unhandled USB suspend control requests
USB: serial: safe_serial: fix information leak in completion handler
USB: serial: io_ti: fix information leak in completion handler
USB: serial: omninet: drop open callback
USB: serial: omninet: fix reference leaks at open
USB: serial: io_ti: fix NULL-deref in interrupt callback
usb: dwc3: gadget: make to increment req->remaining in all cases
...
- Add a get_direction() function to the qcom driver.
- Fix two pin names in the uniphier driver.
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Merge tag 'pinctrl-v4.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pinctrl fixes from Linus Walleij:
"Two smaller pin control fixes for the v4.11 series:
- Add a get_direction() function to the qcom driver
- Fix two pin names in the uniphier driver"
* tag 'pinctrl-v4.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: uniphier: change pin names of aio/xirq for LD11
pinctrl: qcom: add get_direction function
The debug output for return the return data of pgoff_to_phys() in the
fault handlers has 'phys' and 'pgoff' incorrectly swapped.
Reported-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Jeff Moyer reports:
With a device dax alignment of 4KB or 2MB, I get sigbus when running
the attached fio job file for the current kernel (4.11.0-rc1+). If
I specify an alignment of 1GB, it works.
I turned on debug output, and saw that it was failing in the huge
fault code.
dax dax1.0: dax_open
dax dax1.0: dax_mmap
dax dax1.0: dax_dev_huge_fault: fio: write (0x7f08f0a00000 -
dax dax1.0: __dax_dev_pud_fault: phys_to_pgoff(0xffffffffcf60)
dax dax1.0: dax_release
fio config for reproduce:
[global]
ioengine=dev-dax
direct=0
filename=/dev/dax0.0
bs=2m
[write]
rw=write
[read]
stonewall
rw=read
The driver fails to fallback when taking a fault that is larger than
the device alignment, or handling a larger fault when a smaller
mapping is already established. While we could support larger
mappings for a device with a smaller alignment, that change is
too large for the immediate fix. The simplest change is to force
fallback until the fault size matches the alignment.
Reported-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Jeff Moyer reports:
With a device dax alignment of 4KB or 2MB, I get sigbus when running
the attached fio job file for the current kernel (4.11.0-rc1+). If
I specify an alignment of 1GB, it works.
I turned on debug output, and saw that it was failing in the huge
fault code.
dax dax1.0: dax_open
dax dax1.0: dax_mmap
dax dax1.0: dax_dev_huge_fault: fio: write (0x7f08f0a00000 -
dax dax1.0: __dax_dev_pud_fault: phys_to_pgoff(0xffffffffcf60
dax dax1.0: dax_release
fio config for reproduce:
[global]
ioengine=dev-dax
direct=0
filename=/dev/dax0.0
bs=2m
[write]
rw=write
[read]
stonewall
rw=read
The driver fails to fallback when taking a fault that is larger than
the device alignment, or handling a larger fault when a smaller
mapping is already established. While we could support larger
mappings for a device with a smaller alignment, that change is
too large for the immediate fix. The simplest change is to force
fallback until the fault size matches the alignment.
Fixes: dee4107924 ("/dev/dax, core: file operations and dax-mmap")
Cc: <stable@vger.kernel.org>
Reported-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
The sb->super_offset should be big-endian, but the rdev->sb_start is in
host byte order, so fix this by adding cpu_to_le64.
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Shaohua Li <shli@fb.com>
The purgatory code defines global variables which are referenced via a
symbol lookup in the kexec code (core and arch).
A recent commit addressing sparse warnings made these static and thereby
broke kexec_file.
Why did this happen? Simply because the whole machinery is undocumented and
lacks any form of forward declarations. The variable names are unspecific
and lack a prefix, so adding forward declarations creates shadow variables
in the core code. Aside of that the code relies on magic constants and
duplicate struct definitions with no way to ensure that these things stay
in sync. The section placement of the purgatory variables happened by
chance and not by design.
Unbreak kexec and cleanup the mess:
- Add proper forward declarations and document the usage
- Use common struct definition
- Use the proper common defines instead of magic constants
- Add a purgatory_ prefix to have a proper name space
- Use ARRAY_SIZE() instead of a homebrewn reimplementation
- Add proper sections to the purgatory variables [ From Mike ]
Fixes: 72042a8c7b ("x86/purgatory: Make functions and variables static")
Reported-by: Mike Galbraith <<efault@gmx.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Nicholas Mc Guire <der.herr@hofr.at>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: "Tobin C. Harding" <me@tobin.cc>
Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1703101315140.3681@nanos
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
If we don't reset the chunk info in the error path, the subsequent
fini path will double free.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Currently compute jobs will stall if GFX_PG is enabled. Until this
is resolved we'll disable GFX_PG.
Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
jewel and later on the server side and all stable kernels, a fixup for
-rc1 CRUSH changes and two usability enhancements: osd_request_timeout
option and supported_features bus attribute.
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Merge tag 'ceph-for-4.11-rc2' of git://github.com/ceph/ceph-client
Pull ceph fixes from Ilya Dryomov:
- a fix for the recently discovered misdirected requests bug present in
jewel and later on the server side and all stable kernels
- a fixup for -rc1 CRUSH changes
- two usability enhancements: osd_request_timeout option and
supported_features bus attribute.
* tag 'ceph-for-4.11-rc2' of git://github.com/ceph/ceph-client:
libceph: osd_request_timeout option
rbd: supported_features bus attribute
libceph: don't set weight to IN when OSD is destroyed
libceph: fix crush_decode() for older maps
Commit af391b15f7 ("arm64: kernel: rename __cpu_suspend to keep it
aligned with arm") renamed cpu_suspend() to arm_cpuidle_suspend(), but
forgot to update the kerneldoc header.
Fixes: af391b15f7 ("arm64: kernel: rename __cpu_suspend to keep it aligned with arm")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Saeed Mahameed says:
====================
Mellanox mlx5 fixes 2017-03-09
This series contains some mlx5 core and ethernet driver fixes.
For -stable:
net/mlx5e: remove IEEE/CEE mode check when setting DCBX mode (for kernel >= 4.10)
net/mlx5e: Avoid wrong identification of rules on deletion (for kernel >= 4.9)
net/mlx5: Don't save PCI state when PCI error is detected (for kernel >= 4.9)
net/mlx5: Fix create autogroup prev initializer (for kernel >=4.9)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Change packet type handler to ETH_P_IP instead of ETH_P_ALL
since we are already expecting an IP packet.
Also, using ETH_P_ALL will cause the loopback test packet type handler
to be called on all outgoing packets, especially our own self loopback
test SKB, which will be validated on xmit as well, and we don't want that.
Tested with:
ethtool -t ethX
validated that the loopback test passes.
Fixes: 0952da791c ('net/mlx5e: Add support for loopback selftest')
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When deleting offloaded TC flows, we must correctly identify E-switch
rules. The current check could get us wrong w.r.t to rules set on the
PF. Since it's possible to set NIC rules on the PF, switch to SRIOV
offloads mode and then attempt to delete a NIC rule.
To solve that, we add a flags field to offloaded rules, set it on
creation time and use that over the code where currently needed.
Fixes: 8b32580df1 ('net/mlx5e: Add TC vlan action for SRIOV offloads')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently, the function setdcbx fails if the request dcbx mode
is either IEEE or CEE. We remove the IEEE/CEE mode check because
we support both IEEE and CEE interfaces.
Fixes: 3a6a931dfb ("net/mlx5e: Support DCBX CEE API")
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When a PCI error is detected the PCI state could be corrupt, don't save
it in that flow. Save the state after initialization. After restoring the
PCI state during slot reset save it again, restoring the state destroys
the previously saved state info.
Fixes: 05ac2c0b74 ('net/mlx5: Fix race between PCI error handlers and
health work')
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The autogroups list is a list of non overlapping group boundaries
sorted by their start index. If the autogroups list wasn't empty
and an empty group slot was found at the start of the list,
the new group was added to the end of the list instead of the
beginning, as the prev initializer was incorrect.
When this was repeated, it caused multiple groups to have
overlapping boundaries.
Fixed that by correctly initializing the prev pointer to the
start of the list.
Fixes: eccec8da3b ('net/mlx5: Keep autogroups list ordered')
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull i2c fixes from Wolfram Sang:
"Here are some driver bugfixes from I2C.
Unusual this time are the two reverts. One because I accidently picked
a patch from the list which I should have pulled from my co-maintainer
instead ("missing of_node_put"). And one which I wrongly assumed to be
an easy fix but it turned out already that it needs more iterations
("copy device properties")"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
Revert "i2c: copy device properties when using i2c_register_board_info()"
Revert "i2c: add missing of_node_put in i2c_mux_del_adapters"
i2c: exynos5: Avoid transaction timeouts due TRANSFER_DONE_AUTO not set
i2c: designware: add reset interface
i2c: meson: fix wrong variable usage in meson_i2c_put_data
i2c: copy device properties when using i2c_register_board_info()
i2c: m65xx: drop superfluous quirk structure
i2c: brcmstb: Fix START and STOP conditions
i2c: add missing of_node_put in i2c_mux_del_adapters
i2c: riic: fix restart condition
i2c: add missing of_node_put in i2c_mux_del_adapters
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Merge tag 'drm-fixes-for-4.11-rc2' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Intel, amd and mxsfb fixes.
These are the drm fixes I've collected for rc2. Mostly i915 GVT only
fixes, along with a single EDID fix, some mxsfb fixes and a few minor
amd fixes"
* tag 'drm-fixes-for-4.11-rc2' of git://people.freedesktop.org/~airlied/linux: (38 commits)
drm: mxsfb: Implement drm_panel handling
drm: mxsfb_crtc: Fix the framebuffer misplacement
drm: mxsfb: Fix crash when provided invalid DT bindings
drm: mxsfb: fix pixel clock polarity
drm: mxsfb: use bus_format to determine LCD bus width
drm/amdgpu: bump driver version for some new features
drm/amdgpu: validate paramaters in the gem ioctl
drm/amd/amdgpu: fix console deadlock if late init failed
drm/i915/gvt: change some gvt_err to gvt_dbg_cmd
drm/i915/gvt: protect RO and Rsvd bits of virtual vgpu configuration space
drm/i915/gvt: handle workload lifecycle properly
drm/edid: Add EDID_QUIRK_FORCE_8BPC quirk for Rotel RSX-1058
drm/i915/gvt: fix an error for F_RO flag
drm/i915/gvt: use pfn_valid for better checking
drm/i915/gvt: set SFUSE_STRAP properly for vitual monitor detection
drm/i915/gvt: fix an error for one register
drm/i915/gvt: add more registers into handlers list
drm/i915/gvt: have more registers with F_CMD_ACCESS flags set
drm/i915/gvt: add some new MMIOs to cmd_access white list
drm/i915/gvt: fix pcode mailbox write emulation of BDW
...
Since commit 4b65a5db36 ("arm64: Introduce
uaccess_{disable,enable} functionality based on TTBR0_EL1"),
system_uses_ttbr0_pan() has used cpus_have_cap() to determine whether
PAN is present.
Since commit a4023f6827 ("arm64: Add hypervisor safe helper for
checking constant capabilities"), which was introduced around the same
time, cpus_have_cap() doesn't try to use a static key, and must always
perform a load, test, and consitional branch (likely a tbnz for the
latter two).
Elsewhere, we moved to using cpus_have_const_cap(), which can use a
static key (i.e. a non-conditional branch), which is patched at runtime
when the feature is detected.
This patch makes system_uses_ttbr0_pan() use cpus_have_const_cap(). The
static key is likely a win for hot-paths like the uacccess primitives,
and this makes our usage consistent regardless.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
As is the case for a number of other architectures that have a 32-bit
compat mode, enable KEYS_COMPAT if both COMPAT and KEYS are enabled.
This allows AArch32 programs to use the keyctl() system call when
running on an AArch64 kernel.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Booting a v4.11-rc1 kernel with DEBUG_VIRTUAL and KASAN enabled produces
the following splat (trimmed for brevity):
[ 0.000000] virt_to_phys used for non-linear address: ffff200008080000 (0xffff200008080000)
[ 0.000000] WARNING: CPU: 0 PID: 0 at arch/arm64/mm/physaddr.c:14 __virt_to_phys+0x48/0x70
[ 0.000000] PC is at __virt_to_phys+0x48/0x70
[ 0.000000] LR is at __virt_to_phys+0x48/0x70
[ 0.000000] Call trace:
[ 0.000000] [<ffff2000080b1ac0>] __virt_to_phys+0x48/0x70
[ 0.000000] [<ffff20000a03b86c>] kasan_init+0x1c0/0x498
[ 0.000000] [<ffff20000a034018>] setup_arch+0x2fc/0x948
[ 0.000000] [<ffff20000a030c68>] start_kernel+0xb8/0x570
[ 0.000000] [<ffff20000a0301e8>] __primary_switched+0x6c/0x74
This is because we use virt_to_pfn() on a kernel image address when
trying to figure out its nid, so that we can allocate its shadow from
the same node.
As with other recent changes, this patch uses lm_alias() to solve this.
We could instead use NUMA_NO_NODE, as x86 does for all shadow
allocations, though we'll likely want the "real" memory shadow to be
backed from its corresponding nid anyway, so we may as well be
consistent and find the nid for the image shadow.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Acked-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Commit fc62d0207a ("kprobes: Introduce weak variant of
kprobe_exceptions_notify()") introduces a generic empty version of the
function for architectures that don't need special handling, like arm64.
As such, remove the arch/arm64/ specific handler.
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
The RxRPC ACK packet may contain an extension that includes the peer's
current Rx window size for this call. We adjust the local Tx window size
to match. However, the transmitter can stall if the receive window is
reduced to 0 by the peer and then reopened.
This is because the normal way that the transmitter is re-energised is by
dropping something out of our Tx queue and thus making space. When a
single gap is made, the transmitter is woken up. However, because there's
nothing in the Tx queue at this point, this doesn't happen.
To fix this, perform a wake_up() any time we see the peer's Rx window size
increasing.
The observable symptom is that calls start failing on ETIMEDOUT and the
following:
kAFS: SERVER DEAD state=-62
appears in dmesg.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Merge 5-level page table prep from Kirill Shutemov:
"Here's relatively low-risk part of 5-level paging patchset. Merging it
now will make x86 5-level paging enabling in v4.12 easier.
The first patch is actually x86-specific: detect 5-level paging
support. It boils down to single define.
The rest of patchset converts Linux MMU abstraction from 4- to 5-level
paging.
Enabling of new abstraction in most cases requires adding single line
of code in arch-specific code. The rest is taken care by asm-generic/.
Changes to mm/ code are mostly mechanical: add support for new page
table level -- p4d_t -- where we deal with pud_t now.
v2:
- fix build on microblaze (Michal);
- comment for __ARCH_HAS_5LEVEL_HACK in kasan_populate_zero_shadow();
- acks from Michal"
* emailed patches from Kirill A Shutemov <kirill.shutemov@linux.intel.com>:
mm: introduce __p4d_alloc()
mm: convert generic code to 5-level paging
asm-generic: introduce <asm-generic/pgtable-nop4d.h>
arch, mm: convert all architectures to use 5level-fixup.h
asm-generic: introduce __ARCH_USE_5LEVEL_HACK
asm-generic: introduce 5level-fixup.h
x86/cpufeature: Add 5-level paging detection
Merge fixes from Andrew Morton:
"26 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (26 commits)
userfaultfd: remove wrong comment from userfaultfd_ctx_get()
fat: fix using uninitialized fields of fat_inode/fsinfo_inode
sh: cayman: IDE support fix
kasan: fix races in quarantine_remove_cache()
kasan: resched in quarantine_remove_cache()
mm: do not call mem_cgroup_free() from within mem_cgroup_alloc()
thp: fix another corner case of munlock() vs. THPs
rmap: fix NULL-pointer dereference on THP munlocking
mm/memblock.c: fix memblock_next_valid_pfn()
userfaultfd: selftest: vm: allow to build in vm/ directory
userfaultfd: non-cooperative: userfaultfd_remove revalidate vma in MADV_DONTNEED
userfaultfd: non-cooperative: fix fork fctx->new memleak
mm/cgroup: avoid panic when init with low memory
drivers/md/bcache/util.h: remove duplicate inclusion of blkdev.h
mm/vmstats: add thp_split_pud event for clarity
include/linux/fs.h: fix unsigned enum warning with gcc-4.2
userfaultfd: non-cooperative: release all ctx in dup_userfaultfd_complete
userfaultfd: non-cooperative: robustness check
userfaultfd: non-cooperative: rollback userfaultfd_exit
x86, mm: unify exit paths in gup_pte_range()
...
Use rectangle 1 as a generic plane. Existing code already sets the smart
layer bounding box size + offset. The rectangles' offsets are relative
to the bounding box, so there is no need to set R1's offset (reset value
is 0), just its size which is the same as the bounding box.
Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
The rate of mclk depends on the use-case. If no downscaling is required,
then mclk == pxlclk is a valid option; with downscaling however, the
rate at which mclk runs determines how much a plane can be downscaled
before composition. This is a system integration + power management
issue that is more suited to firmware rather than this driver.
Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
The reboot quirk for ASUS EeeBook X205TA contains a typo in
DMI_PRODUCT_NAME, improperly referring to X205TAW instead of
X205TA, which prevents the quirk from being triggered. The
model X205TAW already has a reboot quirk of its own.
This fix simply removes the inappropriate final letter W.
Fixes: 90b28ded88 ("x86/reboot/quirks: Add ASUS EeeBook X205TA reboot quirk")
Signed-off-by: Matjaz Hegedic <matjaz.hegedic@gmail.com>
Link: http://lkml.kernel.org/r/1489064417-7445-1-git-send-email-matjaz.hegedic@gmail.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
The hwmon temperature sensor devices is registered using a devm_hwmon
API call. The marvell_release() would then manually free the device,
not using a devm_hmon API, resulting in the device being removed
twice, leading to a crash in kernfs_find_ns() during the second
removal.
Remove the manual removal, which makes marvell_release() empty, so
remove it as well.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Fixes: 0b04680fda ("phy: marvell: Add support for temperature sensor")
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add POWER9 machine check handler. There are several new types of errors
added, so logging messages for those are also added.
This doesn't attempt to reuse any of the P7/8 defines or functions,
because that becomes too complex. The better option in future is to use
a table driven approach.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Currently severity and initiator are always set to MCE_SEV_ERROR_SYNC and
MCE_INITIATOR_CPU in the core mce code. Allow them to be set by the
machine specific mce handlers.
No functional change for existing handlers.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
A synchronous machine check is an exception raised by the attempt to
execute the current instruction. If the error can't be corrected, it
can make sense to SIGBUS the currently running process.
In other cases, the error condition is not related to the current
instruction, so killing the current process is not the right thing to
do.
Today, all machine checks are MCE_SEV_ERROR_SYNC, so this has no
practical change. It will be used to handle POWER9 asynchronous
machine checks.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Commit 5657933dbb ("treewide: Move dma_ops from struct dev_archdata
into struct device") introduced a crash for macio devices, an example
backtrace being:
kernel BUG at ./include/linux/dma-mapping.h:465!
Oops: Exception in kernel mode, sig: 5 [#1]
...
NIP [c031ddb0] dmam_alloc_coherent+0x74/0x140
LR [c031de70] dmam_alloc_coherent+0x134/0x140
Call Trace:
dmam_alloc_coherent+0x134/0x140 (unreliable)
pata_macio_port_start+0x3c/0x8c
ata_host_start.part.5+0xfc/0x208
ata_host_activate+0x128/0x154
pata_macio_common_init+0x2f0/0x538
pata_macio_attach+0xd8/0x180
macio_device_probe+0x5c/0xec
driver_probe_device+0x21c/0x314
__driver_attach+0xcc/0xd0
bus_for_each_dev+0x68/0xb4
bus_add_driver+0x1dc/0x244
driver_register+0x88/0x130
pata_macio_init+0x5c/0x88
do_one_initcall+0x40/0x170
kernel_init_freeable+0x134/0x1d0
kernel_init+0x18/0x110
ret_from_kernel_thread+0x5c/0x64
This was caused by the device having NULL dma_ops, triggering the
BUG_ON(). Previously the device inherited its dma_ops via the assignment
to dev->ofdev.dev.archdata. However after commit 5657933dbb the
dma_ops are moved into dev->ofdev.dev, and so they need to be explicitly
copied.
Fixes: 5657933dbb ("treewide: Move dma_ops from struct dev_archdata into struct device")
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Suggested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[mpe: Rewrite change log, add backtrace]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Doug Berger says:
====================
net: bcmgenet: minor bug fixes
v2: Accidentally sent the wrong set after rebasing.
This collection contains a number of fixes for minor issues with the
bcmgenet driver most of which were present in the initial submission
of the driver.
Some bugs were uncovered by inspection prior to the upcoming update for
GENETv5 support:
net: bcmgenet: correct the RBUF_OVFL_CNT and RBUF_ERR_CNT MIB values
net: bcmgenet: correct MIB access of UniMAC RUNT counters
net: bcmgenet: reserved phy revisions must be checked first
net: bcmgenet: synchronize irq0 status between the isr and task
Others bugs were found in power management testing:
net: bcmgenet: power down internal phy if open or resume fails
net: bcmgenet: Power up the internal PHY before probing the MII
net: bcmgenet: decouple flow control from bcmgenet_tx_reclaim
net: bcmgenet: add begin/complete ethtool ops
Doug Berger (7):
net: bcmgenet: correct the RBUF_OVFL_CNT and RBUF_ERR_CNT MIB values
net: bcmgenet: correct MIB access of UniMAC RUNT counters
net: bcmgenet: reserved phy revisions must be checked first
net: bcmgenet: power down internal phy if open or resume fails
net: bcmgenet: synchronize irq0 status between the isr and task
net: bcmgenet: Power up the internal PHY before probing the MII
net: bcmgenet: decouple flow control from bcmgenet_tx_reclaim
Edwin Chan (1):
net: bcmgenet: add begin/complete ethtool ops
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
