This patch addresses the following bugs in the current rescind handling code:
1. Fixes a race condition where we may be invoking hv_process_channel_removal()
on an already freed channel.
2. Prevents indefinite wait when rescinding sub-channels by correctly setting
the probe_complete state.
I would like to thank Dexuan for patiently reviewing earlier versions of this
patch and identifying many of the issues fixed here.
Greg, please apply this to 4.14-final.
Fixes: '54a66265d6 ("Drivers: hv: vmbus: Fix rescind handling")'
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Dexuan Cui <decui@microsoft.com>
Cc: stable@vger.kernel.org # (4.13 and above)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes a regression caused by the new changes
in the "run wake" handlers.
The mei devices that support D0i3 are no longer receiving an interrupt
after entering runtime suspend state and will stall.
pci_dev_run_wake function now returns "true" for some devices
(including mei) for which it used to return "false",
arguably incorrectly as "run wake" used to mean that
wakeup signals can be generated for a device in
the working state of the system, so it could not be enabled
or disabled before too.
MEI maps runtime suspend/resume to its own defined
power gating (PG) states, (D0i3 or other depending on generation),
hence we need to go around the native PCI runtime service which
eventually brings the device into D3cold/hot state,
but the mei devices cannot wake up from D3 unlike from D0i3/PG state,
which keeps irq running.
To get around PCI device native runtime pm,
MEI uses runtime pm domain handlers which take precedence.
Cc: <stable@vger.kernel.org> #4.13+
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
On Armada 7K/8K we need to explicitly enable the bus clock. The bus clock
is optional because not all the SoCs need them but at least for Armada
7K/8K it is actually mandatory.
The binding documentation is updating accordingly.
Without this patch the kernel hand during boot if the mvpp2.2 network
driver was not present in the kernel. Indeed the clock needed by the
xenon controller was set by the network driver.
Fixes: 3a3748dba8 ("mmc: sdhci-xenon: Add Marvell Xenon SDHC core
functionality)"
CC: Stable <stable@vger.kernel.org>
Tested-by: Zhoujie Wu <zjwu@marvell.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
It has been reported that some platforms (odroid-c2) may require
a different tx phase setting to operate at high speed (hs200 and hs400)
To improve the situation, this patch includes tx phase in the tuning
process.
Fixes: d341ca88ee ("mmc: meson-gx: rework tuning function")
Reported-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Resetting the phase when POWER_ON is set the set_ios() call means that the
phase is reset almost every time the set_ios() is called, while the
expected behavior was to reset the phase on a power cycle.
This had gone unnoticed until now because in all mode (except hs400) the
tuning is done after the last to set_ios(). In such case, the tuning
result is used anyway. In HS400, there are a few calls to set_ios() after
the tuning is done, overwriting the tuning result.
Resetting the phase on POWER_UP instead of POWER_ON solve the problem.
Fixes: d341ca88ee ("mmc: meson-gx: rework tuning function")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Using CLK_DIVIDER_ROUND_CLOSEST is unsafe as the mmc clock could be
rounded to a rate higher the specified rate. Removing this flag ensure
that, if the rate needs to be rounded, it will be rounded down.
Fixes: 51c5d8447b ("MMC: meson: initial support for GX platforms")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The SoCFPGA Stratix10 reset controller has 32-bit registers. Thus, we
cannot use BITS_PER_LONG in computing the register and bit offset. Instead,
we should be using the width of the hardware register for the calculation.
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
In may, Steven sent a patch deleting the bounce buffer handling
and the CONFIG_MMC_BLOCK_BOUNCE option.
I chose the less invasive path of making it a runtime config
option, and we merged that successfully for kernel v4.12.
The code is however just standing in the way and taking up
space for seemingly no gain on any systems in wide use today.
Pierre says the code was there to improve speed on TI SDHCI
controllers on certain HP laptops and possibly some Ricoh
controllers as well. Early SDHCI controllers lacked the
scatter-gather feature, which made software bounce buffers
a significant speed boost.
We are clearly talking about the list of SDHCI PCI-based
MMC/SD card readers found in the pci_ids[] list in
drivers/mmc/host/sdhci-pci-core.c.
The TI SDHCI derivative is not supported by the upstream
kernel. This leaves the Ricoh.
What we can however notice is that the x86 defconfigs in the
kernel did not enable CONFIG_MMC_BLOCK_BOUNCE option, which
means that any such laptop would have to have a custom
configured kernel to actually take advantage of this
bounce buffer speed-up. It simply seems like there was
a speed optimization for the Ricoh controllers that noone
was using. (I have not checked the distro defconfigs but
I am pretty sure the situation is the same there.)
Bounce buffers increased performance on the OMAP HSMMC
at one point, and was part of the original submission in
commit a45c6cb816 ("[ARM] 5369/1: omap mmc: Add new
omap hsmmc controller for 2430 and 34xx, v3")
This optimization was removed in
commit 0ccd76d4c2 ("omap_hsmmc: Implement scatter-gather
emulation")
which found that scatter-gather emulation provided even
better performance.
The same was introduced for SDHCI in
commit 2134a922c6 ("sdhci: scatter-gather (ADMA) support")
I am pretty positively convinced that software
scatter-gather emulation will do for any host controller what
the bounce buffers were doing. Essentially, the bounce buffer
was a reimplementation of software scatter-gather-emulation in
the MMC subsystem, and it should be done away with.
Cc: Pierre Ossman <pierre@ossman.eu>
Cc: Juha Yrjola <juha.yrjola@solidboot.com>
Cc: Steven J. Hill <Steven.Hill@cavium.com>
Cc: Shawn Lin <shawn.lin@rock-chips.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Suggested-by: Steven J. Hill <Steven.Hill@cavium.com>
Suggested-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
- Remove misleading HSDK v1 suffix, as there is no v2 planned
- Add missing DT binding documentation for HSDK reset driver
- Fix HSDK reset driver dependencies
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Merge tag 'reset-fixes-for-4.14' of git://git.pengutronix.de/git/pza/linux into fixes
Reset controller fixes for v4.14
- Remove misleading HSDK v1 suffix, as there is no v2 planned
- Add missing DT binding documentation for HSDK reset driver
- Fix HSDK reset driver dependencies
* tag 'reset-fixes-for-4.14' of git://git.pengutronix.de/git/pza/linux:
reset: Restrict RESET_HSDK to ARC_SOC_HSDK or COMPILE_TEST
ARC: reset: remove the misleading v1 suffix all over
ARC: reset: add missing DT binding documentation for HSDKv1 reset driver
ARC: reset: Only build on archs that have IOMEM
Signed-off-by: Olof Johansson <olof@lixom.net>
In testing I found handle passed to zs_map_object in __zram_bvec_read is
NULL so eh kernel goes oops in pin_object().
The reason is there is no routine to check the slot's freeing after
getting the slot's lock. This patch fixes it.
[minchan@kernel.org: v2]
Link: http://lkml.kernel.org/r/1505887347-10881-1-git-send-email-minchan@kernel.org
Link: http://lkml.kernel.org/r/1505788488-26723-1-git-send-email-minchan@kernel.org
Fixes: 1f7319c742 ("zram: partial IO refactoring")
Signed-off-by: Minchan Kim <minchan@kernel.org>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Locking of config and doorbell operations should be done only if the
underlying hardware requires it.
This patch removes the global spinlocks from the rapidio subsystem and
moves them to the mport drivers (fsl_rio and tsi721), only to the
necessary places. For example, local config space read and write
operations (lcread/lcwrite) are atomic in all existing drivers, so there
should be no need for locking, while the cread/cwrite operations which
generate maintenance transactions need to be synchronized with a lock.
Later, each driver could chose to use a per-port lock instead of a
global one, or even more granular locking.
Link: http://lkml.kernel.org/r/20170824113023.GD50104@nokia.com
Signed-off-by: Ioan Nicu <ioan.nicu.ext@nokia.com>
Signed-off-by: Frank Kunz <frank.kunz@nokia.com>
Acked-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Drop the global lru lock in isolate callback before calling
zap_page_range which calls cond_resched, and re-acquire the global lru
lock before returning. Also change return code to LRU_REMOVED_RETRY.
Use mmput_async when fail to acquire mmap sem in an atomic context.
Fix "BUG: sleeping function called from invalid context"
errors when CONFIG_DEBUG_ATOMIC_SLEEP is enabled.
Also restore mmput_async, which was initially introduced in commit
ec8d7c14ea ("mm, oom_reaper: do not mmput synchronously from the oom
reaper context"), and was removed in commit 2129258024 ("mm: oom: let
oom_reap_task and exit_mmap run concurrently").
Link: http://lkml.kernel.org/r/20170914182231.90908-1-sherryy@android.com
Fixes: f2517eb76f ("android: binder: Add global lru shrinker to binder")
Signed-off-by: Sherry Yang <sherryy@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reported-by: Kyle Yan <kyan@codeaurora.org>
Acked-by: Arve Hjønnevåg <arve@android.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Martijn Coenen <maco@google.com>
Cc: Todd Kjos <tkjos@google.com>
Cc: Riley Andrews <riandrews@android.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Hillf Danton <hdanton@sina.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Hoeun Ryu <hoeun.ryu@gmail.com>
Cc: Christopher Lameter <cl@linux.com>
Cc: Vegard Nossum <vegard.nossum@oracle.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add constants and callback functions for the dwmac on rk3128 soc.
As can be seen, the base structure is the same, only registers
and the bits in them moved slightly.
Signed-off-by: David Wu <david.wu@rock-chips.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A recent commit made null_blk depend on configfs, which is kind of
annoying since you now have to find this dependency and enable that
as well. Discovered this since I no longer had null_blk available
on a box I needed to debug, since it got killed when the config
updated after the configfs change was merged.
Fixes: 3bf2bd2073 ("nullb: add configfs interface")
Reviewed-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Treat the ef/04/01 interface class/subclass/protocol combination used
by the Novatel Verizon USB730L (1410:9030) as a possible RNDIS
interface.
T: Bus=01 Lev=02 Prnt=02 Port=01 Cnt=02 Dev#= 17 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 3
P: Vendor=1410 ProdID=9030 Rev=03.10
S: Manufacturer=Novatel Wireless
S: Product=MiFi USB730L
S: SerialNumber=0123456789ABCDEF
C: #Ifs= 3 Cfg#= 1 Atr=80 MxPwr=500mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=ef(misc ) Sub=04 Prot=01 Driver=rndis_host
I: If#= 1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=rndis_host
I: If#= 2 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=00 Prot=00 Driver=usbhid
Once the network interface is brought up, the user just needs to run a
DHCP client to get IP address and routing setup.
As a side note, other Novatel Verizon USB730L models with the same
vid:pid end up exposing a standard ECM interface which doesn't require
any other kernel update to make it work.
Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>
Reviewed-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
The common lane power down flag of a DPIO PHY has a funky semantic:
after the initial enabling of the PHY (so from a disabled state) this
flag will be clear. It will be set only after the PHY will be used for
the first time (for instance due to enabling the corresponding pipe) and
then become unused (due to disabling the pipe). During the initial PHY
enablement we don't know which of the above phases we are in, so move
the check for the flag where this is known, the HW readout code. This is
where the rest of lane power down status checks are done anyway.
This fixes at least a problem on GLK where after module reloading, the
common lane power down flag of PHY1 is set, but the PHY is actually
powered-on and properly set up. The GRC readout code for other PHYs will
hence think that PHY1 is not powered initially and disable it after the
GRC readout. This will cause the AUX power well related to PHY1 to get
disabled in a stuck state, timing out when we try to enable it later.
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Fixes: e93da0a013 ("drm/i915/bxt: Sanitiy check the PHY lane power down status")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=102777
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171002135307.26117-1-imre.deak@intel.com
(cherry picked from commit e19c1eb885)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
We used to assign IRQs for all devices at boot-time, before any drivers
claimed devices. The following commits:
30fdfb929e ("PCI: Add a call to pci_assign_irq() in pci_device_probe()")
0e4c2eeb75 ("alpha/PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks")
changed this so we now call pci_assign_irq() from pci_device_probe() when
we call a driver's probe method.
The ide_scan_pcibus() path (enabled by CONFIG_IDEPCI_PCIBUS_ORDER) bypasses
pci_device_probe() so it can guarantee devices are claimed in order of PCI
bus address. It calls the driver's probe method directly, so it misses the
pci_assign_irq() call (and other PCI initialization functions), which
causes failures like this:
ide0: disabled, no IRQ
ide0: failed to initialize IDE interface
ide0: disabling port
cmd64x 0000:00:02.0: IDE controller (0x1095:0x0646 rev 0x07)
CMD64x_IDE 0000:00:02.0: BAR 0: can't reserve [io 0x8050-0x8057]
cmd64x 0000:00:02.0: can't reserve resources
CMD64x_IDE: probe of 0000:00:02.0 failed with error -16
ide_generic: please use "probe_mask=0x3f" module parameter for probing
all legacy ISA IDE ports
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x94/0xd0
sysfs: cannot create duplicate filename '/class/ide_port/ide0'
...
Trace:
[<fffffc000048c9f4>] sysfs_warn_dup+0x94/0xd0
[<fffffc0000330928>] warn_slowpath_fmt+0x58/0x70
[<fffffc000048c9f4>] sysfs_warn_dup+0x94/0xd0
[<fffffc0000486d40>] kernfs_path_from_node+0x30/0x60
[<fffffc00004874ac>] kernfs_put+0x16c/0x2c0
[<fffffc00004874ac>] kernfs_put+0x16c/0x2c0
[<fffffc000048d010>] sysfs_do_create_link_sd.isra.2+0x100/0x120
[<fffffc00005b9d64>] device_add+0x2a4/0x7c0
[<fffffc00005ba5cc>] device_create_groups_vargs+0x14c/0x170
[<fffffc00005ba518>] device_create_groups_vargs+0x98/0x170
[<fffffc00005ba690>] device_create+0x50/0x70
[<fffffc00005df36c>] ide_host_register+0x48c/0xa00
[<fffffc00005df330>] ide_host_register+0x450/0xa00
[<fffffc00005ba2a0>] device_register+0x20/0x50
[<fffffc00005df330>] ide_host_register+0x450/0xa00
[<fffffc00005df944>] ide_host_add+0x64/0xe0
[<fffffc000079b41c>] kobject_uevent_env+0x16c/0x710
[<fffffc0000310288>] do_one_initcall+0x68/0x260
[<fffffc00007b13bc>] kernel_init+0x1c/0x1a0
...
---[ end trace 24a70433c3e4d374 ]---
ide0: disabling port
Fix the IRQ allocation issue by calling pci_assign_irq() from
ide_scan_pcidev() before probing the IDE PCI drivers, so that IRQs for a
given PCI device are allocated for the IDE PCI drivers to use them for
device configuration.
Fixes: 30fdfb929e ("PCI: Add a call to pci_assign_irq() in pci_device_probe()")
Fixes: 0e4c2eeb75 ("alpha/PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks")
Link: http://lkml.kernel.org/r/32ec730f-c1b0-5584-cd35-f8a809122b96@roeck-us.net
Reported-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
[bhelgaas: changelog]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Recent pci_assign_irq() changes uncovered a problem with missing freeing of
PCI BARs on PCI IDE host initialization failure:
ide0: disabled, no IRQ
ide0: failed to initialize IDE interface
ide0: disabling port
cmd64x 0000:00:02.0: IDE controller (0x1095:0x0646 rev 0x07)
CMD64x_IDE 0000:00:02.0: BAR 0: can't reserve [io 0x8050-0x8057]
cmd64x 0000:00:02.0: can't reserve resources
CMD64x_IDE: probe of 0000:00:02.0 failed with error -16
Fix the problem by adding missing freeing of PCI BARs to
ide_setup_pci_controller() and ide_pci_init_two().
Fixes: 30fdfb929e ("PCI: Add a call to pci_assign_irq() in pci_device_probe()")
Fixes: 0e4c2eeb75 ("alpha/PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks")
Link: http://lkml.kernel.org/r/32ec730f-c1b0-5584-cd35-f8a809122b96@roeck-us.net
Reported-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
[bhelgaas: add Fixes:]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Pull libata fixes from Tejun Heo:
"Nothing too interesting.
Arnd's gcc-7 warning fixes that slipped through the cracks for two
release cycles (my bad), and two minor low level driver updates"
* 'for-4.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
ahci: don't ignore result code of ahci_reset_controller()
ata_piix: Add Fujitsu-Siemens Lifebook S6120 to short cable IDs
ata: avoid gcc-7 warning in ata_timing_quantize
Here are a number of USB fixes for 4.14-rc4 to resolved reported issue.
There's a bunch of stuff in here based on the great work Andrey
Konovalov is doing in fuzzing the USB stack. Lots of bug fixes when
dealing with corrupted USB descriptors that we've never seen in "normal"
operation, but is now ensuring the stack is much more hardened overall.
There's also the usual XHCI and gadget driver fixes as well, and a build
error fix, and a few other minor things, full details in the shortlog.
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-4.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a number of USB fixes for 4.14-rc4 to resolved reported
issues.
There's a bunch of stuff in here based on the great work Andrey
Konovalov is doing in fuzzing the USB stack. Lots of bug fixes when
dealing with corrupted USB descriptors that we've never seen in
"normal" operation, but is now ensuring the stack is much more
hardened overall.
There's also the usual XHCI and gadget driver fixes as well, and a
build error fix, and a few other minor things, full details in the
shortlog.
All of these have been in linux-next with no reported issues"
* tag 'usb-4.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (38 commits)
usb: dwc3: of-simple: Add compatible for Spreadtrum SC9860 platform
usb: gadget: udc: atmel: set vbus irqflags explicitly
usb: gadget: ffs: handle I/O completion in-order
usb: renesas_usbhs: fix usbhsf_fifo_clear() for RX direction
usb: renesas_usbhs: fix the BCLR setting condition for non-DCP pipe
usb: gadget: udc: renesas_usb3: Fix return value of usb3_write_pipe()
usb: gadget: udc: renesas_usb3: fix Pn_RAMMAP.Pn_MPKT value
usb: gadget: udc: renesas_usb3: fix for no-data control transfer
USB: dummy-hcd: Fix erroneous synchronization change
USB: dummy-hcd: fix infinite-loop resubmission bug
USB: dummy-hcd: fix connection failures (wrong speed)
USB: cdc-wdm: ignore -EPIPE from GetEncapsulatedResponse
USB: devio: Don't corrupt user memory
USB: devio: Prevent integer overflow in proc_do_submiturb()
USB: g_mass_storage: Fix deadlock when driver is unbound
USB: gadgetfs: Fix crash caused by inadequate synchronization
USB: gadgetfs: fix copy_to_user while holding spinlock
USB: uas: fix bug in handling of alternate settings
usb-storage: unusual_devs entry to fix write-access regression for Seagate external drives
usb-storage: fix bogus hardware error messages for ATA pass-thru devices
...
Here are a small number (5) of patches for some reported TTY and serial
issues. Nothing major, a documentation update, timing fix, error
handling fix, name reporting fix, and a timeout issue resolved.
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
"Here are a small number (5) of patches for some reported TTY and
serial issues. Nothing major, a documentation update, timing fix,
error handling fix, name reporting fix, and a timeout issue resolved.
All of these have been in linux-next for a while with no reported
issues"
* tag 'tty-4.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serial: sccnxp: Fix error handling in sccnxp_probe()
tty: serial: lpuart: avoid report NULL interrupt
serial: bcm63xx: fix timing issue.
mxser: fix timeout calculation for low rates
serial: sh-sci: document R8A77970 bindings
Here are some small staging/IIO driver fixes for 4.14-rc4
Most of these have been in my tree for a while due to travels, sorry for
the delay. They resolve a number of small issues reported by people,
mostly for the iio drivers. Nothing major in here, full details are in
the shortlog.
All have been linux-next for a few weeks with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging/IIO fixes from Greg KH:
"Here are some small staging/IIO driver fixes for 4.14-rc4
Most of these have been in my tree for a while due to travels, sorry
for the delay. They resolve a number of small issues reported by
people, mostly for the iio drivers. Nothing major in here, full
details are in the shortlog.
All have been linux-next for a few weeks with no reported issues"
* tag 'staging-4.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (23 commits)
staging: iio: ad7192: Fix - use the dedicated reset function avoiding dma from stack.
iio: core: Return error for failed read_reg
iio: ad7793: Fix the serial interface reset
iio: ad_sigma_delta: Implement a dedicated reset function
IIO: BME280: Updates to Humidity readings need ctrl_reg write!
iio: adc: mcp320x: Fix readout of negative voltages
iio: adc: mcp320x: Fix oops on module unload
iio: adc: stm32: fix bad error check on max_channels
iio: trigger: stm32-timer: fix a corner case to write preset
iio: trigger: stm32-timer: preset shouldn't be buffered
iio: adc: twl4030: Return an error if we can not enable the vusb3v1 regulator in 'twl4030_madc_probe()'
iio: adc: twl4030: Disable the vusb3v1 rugulator in the error handling path of 'twl4030_madc_probe()'
iio: adc: twl4030: Fix an error handling path in 'twl4030_madc_probe()'
staging: rtl8723bs: avoid null pointer dereference on pmlmepriv
staging: rtl8723bs: add missing range check on id
staging: vchiq_2835_arm: Fix NULL ptr dereference in free_pagelist
staging: speakup: fix speakup-r empty line lockup
staging: pi433: Move limit check to switch default to kill warning
staging: r8822be: fix null pointer dereferences with a null driver_adapter
staging: mt29f_spinand: Enable the read ECC before program the page
...
Here are a few small fixes for 4.14-rc4.
The removal of DRIVER_ATTR() was almost completed by 4.14-rc1, but one
straggler made it in through some other tree (odds are, one of mine...)
So there's a simple removal of the last user, and then finally the macro
is removed from the tree.
There's a fix for old crazy udev instances that insist on reloading a
module when it is removed from the kernel due to the new uevents for
bind/unbind. This fixes the reported regression, hopefully some year in
the future we can drop the workaround, once users update to the latest
version, but I'm not holding my breath.
And then there's a build fix for a linker warning, and a buffer overflow
fix to match the PCI fixes you took through the PCI tree in the same
area.
All of these have been in linux-next for a few weeks while I've been
traveling, sorry for the delay.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-4.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH:
"Here are a few small fixes for 4.14-rc4.
The removal of DRIVER_ATTR() was almost completed by 4.14-rc1, but one
straggler made it in through some other tree (odds are, one of
mine...) So there's a simple removal of the last user, and then
finally the macro is removed from the tree.
There's a fix for old crazy udev instances that insist on reloading a
module when it is removed from the kernel due to the new uevents for
bind/unbind. This fixes the reported regression, hopefully some year
in the future we can drop the workaround, once users update to the
latest version, but I'm not holding my breath.
And then there's a build fix for a linker warning, and a buffer
overflow fix to match the PCI fixes you took through the PCI tree in
the same area.
All of these have been in linux-next for a few weeks while I've been
traveling, sorry for the delay"
* tag 'driver-core-4.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
driver core: remove DRIVER_ATTR
fpga: altera-cvp: remove DRIVER_ATTR() usage
driver core: platform: Don't read past the end of "driver_override" buffer
base: arch_topology: fix section mismatch build warnings
driver core: suppress sending MODALIAS in UNBIND uevents
Here are a handful of char/misc driver fixes for 4.14-rc4.
Nothing major, some binder fixups, hyperv fixes, and other tiny things.
All of these have been sitting in my tree for way too long, sorry for
the delay in getting them to you. All have been in linux-next for a few
weeks, and despite some people's feeling about if linux-next actually
tests things, I think it's a good "soak test" for patches.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc fixes from Greg KH:
"Here are a handful of char/misc driver fixes for 4.14-rc4.
Nothing major, some binder fixups, hyperv fixes, and other tiny
things.
All of these have been sitting in my tree for way too long, sorry for
the delay in getting them to you. All have been in linux-next for a
few weeks, and despite some people's feeling about if linux-next
actually tests things, I think it's a good "soak test" for patches"
* tag 'char-misc-4.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
Drivers: hv: fcopy: restore correct transfer length
vmbus: don't acquire the mutex in vmbus_hvsock_device_unregister()
intel_th: pci: Add Lewisburg PCH support
intel_th: pci: Add Cedar Fork PCH support
stm class: Fix a use-after-free
nvmem: add missing of_node_put() in of_nvmem_cell_get()
nvmem: core: return EFBIG on out-of-range write
auxdisplay: charlcd: properly restore atomic counter on error path
binder: fix memory corruption in binder_transaction binder
binder: fix an ret value override
android: binder: fix type mismatch warning
Dell Wireless 5819/5818 devices are re-branded Sierra Wireless MC74
series which will by default boot with vid 0x413c and pid's 0x81cf,
0x81d0, 0x81d1, 0x81d2.
Signed-off-by: Shrirang Bagul <shrirang.bagul@canonical.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
The function tcphy_phy_init() could return an error but the callers
weren't checking the return value. They should. In at least one case
while testing I saw the message "wait pma ready timeout" which
indicates that tcphy_phy_init() really could return an error and we
should account for it.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
G92's seem to require some additional bit of initialization before the
BSP engine can work. It feels like clocks are not set up for the
underlying VLD engine, which means that all commands submitted to the
xtensa chip end up hanging. VP seems to work fine though.
This still allows people to force-enable the bsp engine if they want to
play around with it, but makes it harder for the card to hang by
default.
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org
Even though we've zeroed the PDE, the GPU may have cached the PD, so we
need to flush when deleting them.
Noticed while working on replacement MMU code, but a backport might be a
good idea, so let's fix it in the current code too.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org
For write_pending if the queue is down or client failed then return -EIO
so that LIO can properly process the completed command. Prior we
returned 0 since LIO could not handle it properly. Now with commit
fa7e25cf13 ("target: Fix unknown fabric callback queue-full errors")
that patch addresses LIO's ability to handle things right.
Signed-off-by: Bryant G. Ly <bgly@us.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
iscsi_session_teardown was the only user of this function. Function
currently is just short for iscsi_remove_session + iscsi_free_session.
Signed-off-by: Khazhismel Kumykov <khazhy@google.com>
Acked-by: Chris Leech <cleech@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Session attributes exposed through sysfs were freed before the device
was destroyed, resulting in a potential use-after-free. Free these
attributes after removing the device.
Signed-off-by: Khazhismel Kumykov <khazhy@google.com>
Acked-by: Chris Leech <cleech@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
A user may lower the max_sectors_kb setting in sysfs to accommodate
certain workloads. Previously we would always set the max I/O size to
either the block layer default or the optional preferred I/O size
reported by the device.
Keep the current heuristics for the initial setting of max_sectors_kb.
For subsequent invocations, only update the current queue limit if it
exceeds the capabilities of the hardware.
Cc: <stable@vger.kernel.org>
Reported-by: Don Brace <don.brace@microsemi.com>
Reviewed-by: Martin Wilck <mwilck@suse.com>
Tested-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
SBC-4 states:
"A MAXIMUM UNMAP LBA COUNT field set to a non-zero value indicates the
maximum number of LBAs that may be unmapped by an UNMAP command"
"A MAXIMUM WRITE SAME LENGTH field set to a non-zero value indicates
the maximum number of contiguous logical blocks that the device server
allows to be unmapped or written in a single WRITE SAME command."
Despite the spec being clear on the topic, some devices incorrectly
expect WRITE SAME commands with the UNMAP bit set to be limited to the
value reported in MAXIMUM UNMAP LBA COUNT in the Block Limits VPD.
Implement a blacklist option that can be used to accommodate devices
with this behavior.
Cc: <stable@vger.kernel.org>
Reported-by: Bill Kuzeja <William.Kuzeja@stratus.com>
Reported-by: Ewan D. Milne <emilne@redhat.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Tested-by: Laurence Oberman <loberman@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
drm/i915 fixes for 4.14-rc3
Couple fixes for stable:
- Fix ELD connector types and consequently audio on DP (Jani).
- Ignore HDMI on Port A and consequently fix an ops on i915 probe
when VBT advertises HDMI on Port A (Jani).
And a small fix:
- That removes a reduntant hw_check on modeset. (Colin)
* tag 'drm-intel-fixes-2017-09-27' of git://anongit.freedesktop.org/git/drm-intel:
drm/i915/bios: ignore HDMI on port A
drm/i915: remove redundant variable hw_check
drm/i915: always update ELD connector type after get modes
Christoph made it so that if we return'ed BLK_STS_RESOURCE whenever we
got ERESTARTSYS from sending our packets we'd return BLK_STS_OK, which
means we'd never requeue and just hang. We really need to return the
right value from the upper layer.
Fixes: fc17b6534e ("blk-mq: switch ->queue_rq return value to blk_status_t")
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The HDMI driver enables the bus and mod clocks in the bind function, but
does not disable them if it then bails our due to any errors. Neither
does it disable the clocks in the unbind function.
Fix this by adding a proper error path to the bind function, and
clk_disable_unprepare calls to the unbind function.
Also rename the err_cleanup_connector label to err_cleanup_encoder,
since it is the encoder that gets cleaned up.
Fixes: 9c5681011a ("drm/sun4i: Add HDMI support")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170929082306.16193-6-wens@csie.org
ahci_pci_reset_controller() calls ahci_reset_controller(), which may
fail, but ignores the result code and always returns success. This
may result in failures like below
ahci 0000:02:00.0: version 3.0
ahci 0000:02:00.0: enabling device (0000 -> 0003)
ahci 0000:02:00.0: SSS flag set, parallel bus scan disabled
ahci 0000:02:00.0: controller reset failed (0xffffffff)
ahci 0000:02:00.0: failed to stop engine (-5)
... repeated many times ...
ahci 0000:02:00.0: failed to stop engine (-5)
Unable to handle kernel paging request at virtual address ffff0000093f9018
...
PC is at ahci_stop_engine+0x5c/0xd8 [libahci]
LR is at ahci_deinit_port.constprop.12+0x1c/0xc0 [libahci]
...
[<ffff000000a17014>] ahci_stop_engine+0x5c/0xd8 [libahci]
[<ffff000000a196b4>] ahci_deinit_port.constprop.12+0x1c/0xc0 [libahci]
[<ffff000000a197d8>] ahci_init_controller+0x80/0x168 [libahci]
[<ffff000000a260f8>] ahci_pci_init_controller+0x60/0x68 [ahci]
[<ffff000000a26f94>] ahci_init_one+0x75c/0xd88 [ahci]
[<ffff000008430324>] local_pci_probe+0x3c/0xb8
[<ffff000008431728>] pci_device_probe+0x138/0x170
[<ffff000008585e54>] driver_probe_device+0x2dc/0x458
[<ffff0000085860e4>] __driver_attach+0x114/0x118
[<ffff000008583ca8>] bus_for_each_dev+0x60/0xa0
[<ffff000008585638>] driver_attach+0x20/0x28
[<ffff0000085850b0>] bus_add_driver+0x1f0/0x2a8
[<ffff000008586ae0>] driver_register+0x60/0xf8
[<ffff00000842f9b4>] __pci_register_driver+0x3c/0x48
[<ffff000000a3001c>] ahci_pci_driver_init+0x1c/0x1000 [ahci]
[<ffff000008083918>] do_one_initcall+0x38/0x120
where an obvious hardware level failure results in an unnecessary 15 second
delay and a subsequent crash.
So record the result code of ahci_reset_controller() and relay it, rather
than ignoring it.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
When considering whether to set RTNH_F_OFFLOAD flag on an IPv6 route,
mlxsw_sp_fib6_entry_offload_set() looks up the mlxsw_sp_nexthop
corresponding to a given route, and decides based on whether the next
hop's offloaded flag was set. When looking for the matching next hop, it
also takes into account the device of the route, which must match next
hop's RIF.
IPIP next hops however hitherto didn't set the RIF. As a result, IPv6
routes forwarding traffic to IP-in-IP netdevices are never marked as
offloaded, even when they actually are.
Thus track RIF of IPIP next hops the same way as that of ETHERNET next
hops.
Fixes: 8f28a30976 ("mlxsw: spectrum_router: Support IPv6 overlay encap")
Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When creating a new RIF, bumping RIF count of the containing VR is the
last thing to be done. Symmetrically, when destroying a RIF, RIF count
is first dropped and only then the rest of the cleanup proceeds.
That's a problem for loopback RIFs. Those hold two VR references: one
for overlay and one for underlay. mlxsw_sp_rif_destroy() releases the
overlay one, and the deconfigure() callback the underlay one. But if
both overlay and underlay are the same, and if there are no other
artifacts holding the VR alive, this put actually destroys the VR. Later
on, when mlxsw_sp_rif_destroy() calls mlxsw_sp_vr_put() for the same VR,
the VR will already have been released and the kernel crashes with NULL
pointer dereference.
The underlying problem is that the RIF under destruction ends up
referencing the overlay VR much longer than it claims: all the way until
the call to mlxsw_sp_vr_put(). So line up the reference counting
properly to reflect this. Make corresponding changes in
mlxsw_sp_rif_create() as well for symmetry.
Fixes: 6ddb7426a7 ("mlxsw: spectrum_router: Introduce loopback RIFs")
Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
With KASAN and a couple of other patches applied, this driver is one
of the few remaining ones that actually use more than 2048 bytes of
kernel stack:
broadcom/brcm80211/brcmsmac/phy/phy_n.c: In function 'wlc_phy_workarounds_nphy_gainctrl':
broadcom/brcm80211/brcmsmac/phy/phy_n.c:16065:1: warning: the frame size of 3264 bytes is larger than 2048 bytes [-Wframe-larger-than=]
broadcom/brcm80211/brcmsmac/phy/phy_n.c: In function 'wlc_phy_workarounds_nphy':
broadcom/brcm80211/brcmsmac/phy/phy_n.c:17138:1: warning: the frame size of 2864 bytes is larger than 2048 bytes [-Wframe-larger-than=]
Here, I'm reducing the stack size by marking as many local variables as
'static const' as I can without changing the actual code.
This is the first of three patches to improve the stack usage in this
driver. It would be good to have this backported to stabl kernels
to get all drivers in 'allmodconfig' below the 2048 byte limit so
we can turn on the frame warning again globally, but I realize that
the patch is larger than the normal limit for stable backports.
The other two patches do not need to be backported.
Cc: <stable@vger.kernel.org>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
The length of the data in the received skb is currently passed into
brcmf_fweh_process_event() as packet_len, but this value is not checked.
event_packet should be followed by DATALEN bytes of additional event
data. Ensure that the received packet actually contains at least
DATALEN bytes of additional data, to avoid copying uninitialized memory
into event->data.
Cc: <stable@vger.kernel.org> # v3.8
Suggested-by: Mattias Nissler <mnissler@chromium.org>
Signed-off-by: Kevin Cernekee <cernekee@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
In commit 40b368af4b ("rtlwifi: Fix alignment issues"), the read
of REG_DBI_READ was changed from 16 to 8 bits. For unknown reasonsi
this change results in reduced stability for the wireless connection.
This regression was located using bisection.
Fixes: 40b368af4b ("rtlwifi: Fix alignment issues")
Reported-and-tested-by: James Cameron <quozl@laptop.org>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org> # 4.11+
Cc: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This reverts commit fcaa4a07d2.
As noted by Masaki [1], 0x120A + trackpoint will not be used in mass
production machines, so remove the ID accordingly.
[1] http://www.spinics.net/lists/linux-input/msg53222.html
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
We should not try to bring HID device out of full power state before
calling hid_hw_close(), so that transport driver operates on powered up
device (making this inverse of the opening sequence).
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The wacom_get_hdev_data function is used to find and return a reference to
the "other half" of a Wacom device (i.e., the touch device associated with
a pen, or vice-versa). To ensure these references are properly accounted
for, the function is supposed to automatically increment the refcount before
returning. This was not done, however, for devices which have pen & touch
on different interfaces of the same USB device. This can lead to a WARNING
("refcount_t: underflow; use-after-free") when removing the module or device
as we call kref_put() more times than kref_get(). Triggering an "actual" use-
after-free would be difficult since both devices will disappear nearly-
simultaneously. To silence this warning and prevent the potential error, we
need to increment the refcount for all cases within wacom_get_hdev_data.
Fixes: 41372d5d40 ("HID: wacom: Augment 'oVid' and 'oPid' with heuristics for HID_GENERIC")
Cc: <stable@vger.kernel.org> # v4.9+
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Ping Cheng <ping.cheng@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The driver strength selection is missed and required when selecting
hs400es. So, It is added here.
Fixes: 81ac2af657 ("mmc: core: implement enhanced strobe support")
Cc: stable@vger.kernel.org
Signed-off-by: Hankyung Yu <hankyung.yu@lge.com>
Signed-off-by: Chanho Min <chanho.min@lge.com>
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
If this sanity check fails, we must free 'rss_indir'. Otherwise there is a
memory leak.
'goto err' as done in the other error handling paths to fix it.
Fixes: 46a3df9f97 ("net: hns3: Fix for setting rss_size incorrectly")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
