This reverts a problematic commit modifying the turbostat
utility that went in during the 4.13 cycle (Len Brown).
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Merge tag 'pm-4.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fix from Rafael Wysocki:
"This reverts a problematic commit modifying the turbostat utility that
went in during the 4.13 cycle (Len Brown)"
* tag 'pm-4.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
Revert "tools/power turbostat: stop migrating, unless '-m'"
Because many of RCU's files have not been included into docbook, a
number of errors have accumulated. This commit fixes them.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 764f80798b ("doc: Add RCU files to docbook-generation files")
added :external: options for RCU source files in the file
Documentation/core-api/kernel-api.rst. However, this now means nothing,
so this commit removes them.
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: Akira Yokosawa <akiyks@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This introduces a "register private expedited" membarrier command which
allows eventual removal of important memory barrier constraints on the
scheduler fast-paths. It changes how the "private expedited" membarrier
command (new to 4.14) is used from user-space.
This new command allows processes to register their intent to use the
private expedited command. This affects how the expedited private
command introduced in 4.14-rc is meant to be used, and should be merged
before 4.14 final.
Processes are now required to register before using
MEMBARRIER_CMD_PRIVATE_EXPEDITED, otherwise that command returns EPERM.
This fixes a problem that arose when designing requested extensions to
sys_membarrier() to allow JITs to efficiently flush old code from
instruction caches. Several potential algorithms are much less painful
if the user register intent to use this functionality early on, for
example, before the process spawns the second thread. Registering at
this time removes the need to interrupt each and every thread in that
process at the first expedited sys_membarrier() system call.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Before trying to use CDC union descriptor, try to validate whether that it
is sane by checking that intf->altsetting->extra is big enough and that
descriptor bLength is not too big and not too small.
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Introduce a device table used for blacklisting devices. We currently
blacklist the motion sensor subdevice of THQ Udraw and Sony ds3/ds4.
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
[dtor: siwtched to blacklist built on input_device_id and using
input_match_device_id()]
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Let's allow matching input devices on their property bits, both in-kernel
and when generating module aliases.
Tested-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Factor out and export input_match_device_id() so that modules may use it.
It will be needed by joydev to blacklist accelerometers in composite
devices.
Tested-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The Goodix panel triggers an interrupt on touch events. However, its
registers will contain the valid values a short time after the
interrupt, and not when it's raised. At that moment, the 'buffer status'
bit is set.
Previously, if the 'buffer status' bit was not set when the registers
were read, the data was discarded and no input event was emitted,
causing "finger down" or "finger up" events to be missed sometimes.
This went unnoticed until v4.9, as the DesignWare I2C driver commonly
used with this driver had enough latency for that bug to never trigger
until commit 2702ea7dbe ("i2c: designware: wait for disable/enable only
if necessary").
Now, in the IRQ handler we will poll (with a timeout) the 'buffer status'
bit and process the data of the panel as soon as this bit gets set.
Note that the Goodix panel will send a few spurious interrupts after the
'finger up' event, in which the 'buffer status' bit will never be set.
Cc: Bastien Nocera <hadess@hadess.net>
Cc: russianneuromancer@ya.ru
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
[hdegoede@redhat.com: Change poll loop to use jiffies,
add comment about typical poll time]
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
[dtor: rearranged control flow a bit to avoid explicit goto and double
check]
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Now that we have a platform_device_id table and multiple supported ids
we should be using MODULE_DEVICE_TABLE instead of MODULE_ALIAS.
This fixes a regression on Bay and Cherry Trail devices, where the power
button is now enumerated as an "axp221-pek" and it was impossible to
wakeup these devices from suspend since the module did not load.
Fixes: c3cc94470b ("Input: axp20x-pek - add support for AXP221 PEK")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Currently, enabling keypad interrupts is one of the first operations
done on the keypad, even before the interrupt is requested, so there is
a small time window where the keypad can fire interrupts but the driver
is not yet ready to handle them. It's fine for level interrupts because
they will be handled anyway, but not so much for edge ones.
This commit modifies and moves the function in charge of configuring the
keypad. Enabling interrupts is now the last thing done on the keypad,
and after the interrupt has been requested by the driver.
Writing to the config register was also used to determine if the device
was indeed present on the bus or not, this has been replaced by reading
the lock/event count register to keep the same functionality.
Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull parisc fixes from Helge Deller:
"Three small important fixes for the parisc architecture:
- Export __cmpxchg_u64() symbol on 32bit kernel too. This unbreaks
building the kernel with ixgbe kernel module. From Guenter Roeck.
- Fix 64-bit atomic cmpxchg kernel helper function for 32-bit kernel
in LWS code for userspace. This unbreaks e.g. the 64-bit variant of
the glibc function __sync_fetch_and_add() with a 32-bit parisc
kernel. From John David Anglin, tagged for backport to v3.13+.
- Detect nonsynchronous CPU-internal cr16 cycle counters more
reliable. This avoids stalled CPU warnings by the kernel soft
lockup detector. From me, tagged for backport to v4.13+"
* 'parisc-4.14-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Fix detection of nonsynchronous cr16 cycle counters
parisc: Export __cmpxchg_u64 unconditionally
parisc: Fix double-word compare and exchange in LWS code on 32-bit kernels
We've got slightly more fixes than wished, but heading to a good
shape. Most of changes are about HD-audio fixes, one for a buggy code
that went into 4.13, and another for avoiding a crash due to buggy
BIOS.
Apart from HD-audio, a sequencer core change that is only for UP
config (which must be pretty rare nowadays), and a USB-audio quirk as
usual.
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Merge tag 'sound-4.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"We've got slightly more fixes than wished, but heading to a good
shape. Most of changes are about HD-audio fixes, one for a buggy code
that went into 4.13, and another for avoiding a crash due to buggy
BIOS.
Apart from HD-audio, a sequencer core change that is only for UP
config (which must be pretty rare nowadays), and a USB-audio quirk as
usual"
* tag 'sound-4.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Fix incorrect TLV callback check introduced during set_fs() removal
ALSA: hda: Remove superfluous '-' added by printk conversion
ALSA: hda: Abort capability probe at invalid register read
ALSA: seq: Enable 'use' locking in all configurations
ALSA: usb-audio: Add native DSD support for Pro-Ject Pre Box S2 Digital
Add 12V regulator to backlight allowing the power supply
for the backlight to be found.
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Merge tag 'renesas-fixes-for-v4.14' of https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes
Pull "Renesas ARM Based SoC Fixes for v4.14" from Simon Horman:
Add 12V regulator to backlight allowing the power supply
for the backlight to be found.
* tag 'renesas-fixes-for-v4.14' of https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
arm64: dts: salvator-common: add 12V regulator to backlight
The commit afece3ab9a ("PM / Domains: Add time accounting to various
genpd states") causes a boot regression for ux500.
The problem occurs when the ux500 machine code calls pm_genpd_init(), which
since the above change triggers a call to ktime_get(). More precisely,
because ux500 initializes PM domains in the init_IRQ() phase of the boot,
timekeeping has not yet been initialized.
Fix the problem by moving the initialization of the PM domains to after
timekeeping has been initialized.
Fixes: afece3ab9a ("PM / Domains: Add time accounting to various genpd..")
Cc: Thara Gopinath <thara.gopinath@linaro.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
These platforms provide a clock to their watchdog, in each
case this is the peripheral clock (PCLK), so explicitly
name the clock in the device tree.
Take this opportunity to add the "faraday,ftwdt010"
compatible as fallback to the watchdog IP blocks.
Cc: Jonas Jensen <jonas.jensen@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fix SoCFPGA reset controller for 64-bit systems. This patch removes the
assumption that BITS_PER_LONG is 32, which is not the case on Stratix10.
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Merge tag 'reset-fixes-for-4.14-2' of git://git.pengutronix.de/git/pza/linux into fixes
Pull "Reset controller fixes for v4.14" from Philipp Zabel:
Fix SoCFPGA reset controller for 64-bit systems. This patch removes the
assumption that BITS_PER_LONG is 32, which is not the case on Stratix10.
* tag 'reset-fixes-for-4.14-2' of git://git.pengutronix.de/git/pza/linux:
reset: socfpga: fix for 64-bit compilation
exceed 3.0V, so they got fixed to not be at 3.3V
And Arnd found a typo in the recently added iommu nodes.
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Merge tag 'v4.14-rockchip-dts64fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into fixes
Pull "Rockchip dts64 Fixes for 4.14 part 2" from Heiko Stübner:
The vqmmc voltages on rk3399 pose a risk for the chip if they
exceed 3.0V, so they got fixed to not be at 3.3V
And Arnd found a typo in the recently added iommu nodes.
* tag 'v4.14-rockchip-dts64fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
arm64: dts: rockchip: fix typo in iommu nodes
arm64: dts: rockchip: correct vqmmc voltage for rk3399 platforms
- Fix the legacy PCI interrupt numbers for i.MX7. The numbers were
wrongly coded in an inverted order than what Reference Manual tells.
It causes problem for PCI devices using legacy interrupt.
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Merge tag 'imx-fixes-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes
Pull "i.MX fixes for 4.14" from Shawn Guo:
- Fix the legacy PCI interrupt numbers for i.MX7. The numbers were
wrongly coded in an inverted order than what Reference Manual tells.
It causes problem for PCI devices using legacy interrupt.
* tag 'imx-fixes-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: dts: imx7d: Invert legacy PCI irq mapping
Two device tree related fixes:
- One on Armada 38x using a other compatible string for I2C in order
to cover an errata.
- One for Armada 7K/8K fixing a typo on interrupt-map property for
PCIe leading to fail PME and AER root port service initialization
And the last one for the mbus fixing the window size calculation when
it exceed 32bits
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Merge tag 'mvebu-fixes-4.14-2' of git://git.infradead.org/linux-mvebu into fixes
Pull "mvebu fixes for 4.14 (part 2)" from Gregory CLEMENT
Two device tree related fixes:
- One on Armada 38x using a other compatible string for I2C in order
to cover an errata.
- One for Armada 7K/8K fixing a typo on interrupt-map property for
PCIe leading to fail PME and AER root port service initialization
And the last one for the mbus fixing the window size calculation when
it exceed 32bits
* tag 'mvebu-fixes-4.14-2' of git://git.infradead.org/linux-mvebu:
bus: mbus: fix window size calculation for 4GB windows
ARM: dts: Fix I2C repeated start issue on Armada-38x
arm64: dts: marvell: fix interrupt-map property for Armada CP110 PCIe controller
- one DT phy address fix for the new sama5d27 som1 ek
- two DT ADC patches that were forgotten while moving to
hardware triggers for sama5d2 (iio changes already applied)
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Merge tag 'at91-fixes2' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91 into fixes
Fixes: second batch for 4.14:
- one DT phy address fix for the new sama5d27 som1 ek
- two DT ADC patches that were forgotten while moving to
hardware triggers for sama5d2 (iio changes already applied)
* tag 'at91-fixes2' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91:
ARM: dts: at91: sama5d2: add ADC hw trigger edge type
ARM: dts: at91: sama5d2_xplained: enable ADTRG pin
ARM: dts: at91: at91-sama5d27_som1: fix PHY ID
please pull the following:
- Loic fixes the console path on the Raspberry Pi 3 which was not correctly set
and would cause all sorts of confusion between the Bluetooth controller and the
kernel console
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Merge tag 'arm-soc/for-4.14/devicetree-fixes' of http://github.com/Broadcom/stblinux into fixes
Pull "Broadcom devicetree fixes for 4.14" from Florian Fainelli:
This pull request contains Broadcom ARM-based SoC Device Tree fixes for 4.14,
please pull the following:
- Loic fixes the console path on the Raspberry Pi 3 which was not correctly set
and would cause all sorts of confusion between the Bluetooth controller and the
kernel console
* tag 'arm-soc/for-4.14/devicetree-fixes' of http://github.com/Broadcom/stblinux:
ARM: dts: bcm283x: Fix console path on RPi3
Add support to get a list of resets available for the device.
These resets must be kept de-asserted until the device is
in use.
Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
[p.zabel@pengutronix.de: switch to hidden reset control array]
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Now when peeling off an association to the sock in another netns, all
transports in this assoc are not to be rehashed and keep use the old
key in hashtable.
As a transport uses sk->net as the hash key to insert into hashtable,
it would miss removing these transports from hashtable due to the new
netns when closing the sock and all transports are being freeed, then
later an use-after-free issue could be caused when looking up an asoc
and dereferencing those transports.
This is a very old issue since very beginning, ChunYu found it with
syzkaller fuzz testing with this series:
socket$inet6_sctp()
bind$inet6()
sendto$inet6()
unshare(0x40000000)
getsockopt$inet_sctp6_SCTP_GET_ASSOC_ID_LIST()
getsockopt$inet_sctp6_SCTP_SOCKOPT_PEELOFF()
This patch is to block this call when peeling one assoc off from one
netns to another one, so that the netns of all transport would not
go out-sync with the key in hashtable.
Note that this patch didn't fix it by rehashing transports, as it's
difficult to handle the situation when the tuple is already in use
in the new netns. Besides, no one would like to peel off one assoc
to another netns, considering ipaddrs, ifaces, etc. are usually
different.
Reported-by: ChunYu Wang <chunwang@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann says:
====================
bpf: Fix for BPF devmap percpu allocation splat
The set fixes a splat in devmap percpu allocation when we alloc
the flush bitmap. Patch 1 is a prerequisite for the fix in patch 2,
patch 1 is rather small, so if this could be routed via -net, for
example, with Tejun's Ack that would be good. Patch 3 gets rid of
remaining PCPU_MIN_UNIT_SIZE checks, which are percpu allocator
internals and should not be used.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
PCPU_MIN_UNIT_SIZE is an implementation detail of the percpu
allocator. Given we support __GFP_NOWARN now, lets just let
the allocation request fail naturally instead. The two call
sites from BPF mistakenly assumed __GFP_NOWARN would work, so
no changes needed to their actual __alloc_percpu_gfp() calls
which use the flag already.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It was reported that syzkaller was able to trigger a splat on
devmap percpu allocation due to illegal/unsupported allocation
request size passed to __alloc_percpu():
[ 70.094249] illegal size (32776) or align (8) for percpu allocation
[ 70.094256] ------------[ cut here ]------------
[ 70.094259] WARNING: CPU: 3 PID: 3451 at mm/percpu.c:1365 pcpu_alloc+0x96/0x630
[...]
[ 70.094325] Call Trace:
[ 70.094328] __alloc_percpu_gfp+0x12/0x20
[ 70.094330] dev_map_alloc+0x134/0x1e0
[ 70.094331] SyS_bpf+0x9bc/0x1610
[ 70.094333] ? selinux_task_setrlimit+0x5a/0x60
[ 70.094334] ? security_task_setrlimit+0x43/0x60
[ 70.094336] entry_SYSCALL_64_fastpath+0x1a/0xa5
This was due to too large max_entries for the map such that we
surpassed the upper limit of PCPU_MIN_UNIT_SIZE. It's fine to
fail naturally here, so switch to __alloc_percpu_gfp() and pass
__GFP_NOWARN instead.
Fixes: 11393cc9b9 ("xdp: Add batching support to redirect map")
Reported-by: Mark Rutland <mark.rutland@arm.com>
Reported-by: Shankara Pailoor <sp3485@columbia.edu>
Reported-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: John Fastabend <john.fastabend@gmail.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add an option for pcpu_alloc() to support __GFP_NOWARN flag.
Currently, we always throw a warning when size or alignment
is unsupported (and also dump stack on failed allocation
requests). The warning itself is harmless since we return
NULL anyway for any failed request, which callers are
required to handle anyway. However, it becomes harmful when
panic_on_warn is set.
The rationale for the WARN() in pcpu_alloc() is that it can
be tracked when larger than supported allocation requests are
made such that allocations limits can be tweaked if warranted.
This makes sense for in-kernel users, however, there are users
of pcpu allocator where allocation size is derived from user
space requests, e.g. when creating BPF maps. In these cases,
the requests should fail gracefully without throwing a splat.
The current work-around was to check allocation size against
the upper limit of PCPU_MIN_UNIT_SIZE from call-sites for
bailing out prior to a call to pcpu_alloc() in order to
avoid throwing the WARN(). This is bad in multiple ways since
PCPU_MIN_UNIT_SIZE is an implementation detail, and having
the checks on call-sites only complicates the code for no
good reason. Thus, lets fix it generically by supporting the
__GFP_NOWARN flag that users can then use with calling the
__alloc_percpu_gfp() helper instead.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Tejun Heo <tj@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Netanel Belgazal says:
====================
ENA ethernet driver bug fixes
Some fixes for ENA ethernet driver
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
ethtool ena_get_channels() expose the max number of queues as the max
number of queues ENA supports (128 queues) and not the actual number
of created queues.
Signed-off-by: Netanel Belgazal <netanel@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Decrease log level of checksum errors as these messages can be
triggered remotely by bad packets.
Signed-off-by: Netanel Belgazal <netanel@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If sending messages with no cable connected, it quickly happens that
there is no more TX context available. Then "gs_can_start_xmit()"
returns with "NETDEV_TX_BUSY" and the upper layer does retry
immediately keeping the CPU busy. To fix that issue, I moved
"atomic_dec(&dev->active_tx_urbs)" from "gs_usb_xmit_callback()" to
the TX done handling in "gs_usb_receive_bulk_callback()". Renaming
"active_tx_urbs" to "active_tx_contexts" and moving it into
"gs_[alloc|free]_tx_context()" would also make sense.
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
The dlc member of the struct rx_msg contains also the ESD_RTR flag to
mark received RTR frames. Without the fix the can_dlc value for received
RTR frames would always be set to 8 by get_can_dlc() instead of the
received value.
Fixes: 96d8e90382 ("can: Add driver for esd CAN-USB/2 device")
Signed-off-by: Stefan Mätje <stefan.maetje@esd.eu>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This patch adds the missing check and error handling for out-of-memory
situations, when kzalloc cannot allocate memory.
Fixes: cb5635a367 ("can: complete initial namespace support")
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
"proto_tab" is a RCU protected array, when directly accessing the array,
sparse throws these warnings:
CHECK /srv/work/frogger/socketcan/linux/net/can/af_can.c
net/can/af_can.c:115:14: error: incompatible types in comparison expression (different address spaces)
net/can/af_can.c:795:17: error: incompatible types in comparison expression (different address spaces)
net/can/af_can.c:816:9: error: incompatible types in comparison expression (different address spaces)
This patch fixes the problem by using rcu_access_pointer() and
annotating "proto_tab" array as __rcu.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
The assignment of net via call sock_net will dereference sk. This
is performed before a sanity null check on sk, so there could be
a potential null dereference on the sock_net call if sk is null.
Fix this by assigning net after the sk null check. Also replace
the sk == NULL with the more usual !sk idiom.
Detected by CoverityScan CID#1431862 ("Dereference before null check")
Fixes: 384317ef41 ("can: network namespace support for CAN_BCM protocol")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Enable FLEXCAN_QUIRK_BROKEN_WERR_STATE and
FLEXCAN_QUIRK_BROKEN_PERR_STATE for p1010 to report correct state
transitions.
Signed-off-by: Zhu Yi <yi.zhu5@cn.bosch.com>
Signed-off-by: Mark Jonas <mark.jonas@de.bosch.com>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Cc: linux-stable <stable@vger.kernel.org> # >= v4.11
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Enable FLEXCAN_QUIRK_BROKEN_PERR_STATE for i.MX28 to report correct
state transitions, especially to error passive.
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Zhu Yi <yi.zhu5@cn.bosch.com>
Signed-off-by: Mark Jonas <mark.jonas@de.bosch.com>
Cc: linux-stable <stable@vger.kernel.org> # >= v4.11
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Enable FLEXCAN_QUIRK_BROKEN_PERR_STATE for i.MX6 to report correct state
transitions.
Signed-off-by: Zhu Yi <yi.zhu5@cn.bosch.com>
Signed-off-by: Mark Jonas <mark.jonas@de.bosch.com>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Cc: linux-stable <stable@vger.kernel.org> # >= v4.11
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Add FLEXCAN_QUIRK_BROKEN_PERR_STATE for better description of the
missing error passive interrupt quirk.
Error interrupt flooding may happen if the broken error state quirk fix
is enabled. For example, in case there is singled out node on the bus
and the node sends a frame, then error interrupt flooding happens and
will not stop because the node cannot go to bus off. The flooding will
stop after another node connected to the bus again.
If high bitrate configured on the low end system, then the flooding
may causes performance issue, hence, this patch mitigates this by:
1. disable error interrupt upon error passive state transition
2. re-enable error interrupt upon error warning state transition
3. disable/enable error interrupt upon error active state transition
depends on FLEXCAN_QUIRK_BROKEN_WERR_STATE
In this way, the driver is still able to report correct state
transitions without additional latency. When there are bus problems,
flooding of error interrupts is limited to the number of frames required
to change state from error warning to error passive if the core has
[TR]WRN_INT connected (FLEXCAN_QUIRK_BROKEN_WERR_STATE is not enabled),
otherwise, the flooding is limited to the number of frames required to
change state from error active to error passive.
Signed-off-by: Zhu Yi <yi.zhu5@cn.bosch.com>
Signed-off-by: Mark Jonas <mark.jonas@de.bosch.com>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Cc: linux-stable <stable@vger.kernel.org> # >= v4.11
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Rename FLEXCAN_QUIRK_BROKEN_ERR_STATE to FLEXCAN_QUIRK_BROKEN_WERR_STATE
for better description of the missing [TR]WRN_INT quirk.
Signed-off-by: Zhu Yi <yi.zhu5@cn.bosch.com>
Signed-off-by: Mark Jonas <mark.jonas@de.bosch.com>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Cc: linux-stable <stable@vger.kernel.org> # >= v4.11
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Update state upon any interrupt to report correct state transitions in
case the flexcan core enabled the broken error state quirk fix.
Signed-off-by: Zhu Yi <yi.zhu5@cn.bosch.com>
Signed-off-by: Mark Jonas <mark.jonas@de.bosch.com>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Cc: linux-stable <stable@vger.kernel.org> # >= v4.11
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Move clock handling after of_platform_depopulate to achieve
a sequence that is reverse of the probe sequence.
Cc: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
If the connect status change is set during reset signaling, but
the status remains connected just retry port reset.
This solves an issue with connecting a 90W HP Thunderbolt 3 dock
with a Lenovo Carbon x1 (5th generation) which causes a 30min loop
of a high speed device being re-discovererd before usb ports starts
working.
[...]
[ 389.023845] usb 3-1: new high-speed USB device number 55 using xhci_hcd
[ 389.491841] usb 3-1: new high-speed USB device number 56 using xhci_hcd
[ 389.959928] usb 3-1: new high-speed USB device number 57 using xhci_hcd
[...]
This is caused by a high speed device that doesn't successfully go to the
enabled state after the second port reset. Instead the connection bounces
(connected, with connect status change), bailing out completely from
enumeration just to restart from scratch.
Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1716332
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch adds support for r8a7743/5 SoCs. The Renesas RZ/G1[ME]
(R8A7743/5) usbhs is identical to the R-Car Gen2 family.
No driver change is needed due to the fallback compatible value
"renesas,rcar-gen2-usbhs".
Adding the SoC-specific compatible values here has two purposes:
1. Document which SoCs have this hardware module,
2. Allow checkpatch to validate compatible values.
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Chris Paterson <chris.paterson2@renesas.com>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
For the case where an external VBUS is used, we should enable the external
VBUS comparator in the driver. This would prevent an unnecessary
overcurrent error which would then disable the host port.
This patch uses the standard 'disable-over-current' binding to allow of the
option of disabling the over-current condition.
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Remove optional pinctrls due to using FORCE/RG_IDDIG to implement
manual switch function.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Remove dummy clocks for usb wakeup and add optional ones for
mcu_bus and dma_bus bus.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Add a new optional property to disable u3ports
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Linus Torvalds
Paul E. McKenney
Mathieu Desnoyers
Dmitry Torokhov
Roderick Colenbrander
Paul Cercueil
Hans de Goede
Damien Riegel
Arnd Bergmann
Ulf Hansson
Linus Walleij
Vivek Gautam
Xin Long
David S. Miller
Daniel Borkmann
Netanel Belgazal
Wolfgang Grandegger
Stefan Mätje
Marc Kleine-Budde
Colin Ian King
ZHU Yi (ST-FIR/ENG1-Zhu)
Mathias Nyman
Biju Das
Dinh Nguyen
Chunfeng Yun