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path: root/drivers/spi/spi-fsl-espi.c
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2016-10-26spi: fsl-espi: avoid processing uninitalized data on errorArnd Bergmann1-1/+1
When we get a spurious interrupt in fsl_espi_irq, we end up processing four uninitalized bytes of data, as shown in this warning message: drivers/spi/spi-fsl-espi.c: In function 'fsl_espi_irq': drivers/spi/spi-fsl-espi.c:462:4: warning: 'rx_data' may be used uninitialized in this function [-Wmaybe-uninitialized] This adds another check so we skip the data in this case. Fixes: 6319a68011b8 ("spi/fsl-espi: avoid infinite loops on fsl_espi_cpu_irq()") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Mark Brown <broonie@kernel.org> Cc: stable@vger.kernel.org
2016-09-24spi: fsl-espi: improve return value handling in fsl_espi_probeHeiner Kallweit1-16/+8
The return value of fsl_espi_probe (currently struct spi_master *) is just used for checking whether an error occurred. Change the return value type to int and simplify the code. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-24spi: fsl-espi: simplify of_fsl_espi_probeHeiner Kallweit1-14/+7
Simplify of_fsl_espi_probe. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-24spi: fsl-espi: remove unused variable in fsl_espi_setupHeiner Kallweit1-2/+0
Remove an unused variable. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-14spi: fsl-espi: improve and extend register bit definitionsHeiner Kallweit1-19/+33
Add definition of further register bits for use in upcoming driver extensions and improve current bit definitions: - use BIT macro - use bit names as in the chip spec Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-14spi: fsl-espi: align register access with other driversHeiner Kallweit1-63/+72
Change register access to the method used in other drivers too. - use register names as in the chip spec for constants - avoid hard to read statements like __be32 __iomem *espi_mode = &reg_base->mode - get rid of old powerpc-specific functions like in_8 In addition annotate reg_base in struct mpc8xxx_spi as __iomem. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-14spi: fsl-espi: improve and simplify interrupt handlerHeiner Kallweit1-10/+6
Simplify the interrupt handler a little. In addition don't call fsl_espi_cpu_irq() if no event bit is set. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-14spi: fsl-espi: simplify fsl_espi_setup_transferHeiner Kallweit1-14/+2
If t is not null then the SPI core takes care that bits_per_word and speed_hz are populated. This allows to simplify fsl_espi_setup_transfer. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-12spi: fsl-espi: merge fsl_espi_trans and fsl_espi_do_transHeiner Kallweit1-14/+4
Merge both functions to reduce source code size and improve readability. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-12spi: fsl-espi: improve message length handlingHeiner Kallweit1-7/+5
Move checking for a zero-length message up in the call chain and use m->frame_length instead of re-calculating the overall length of all transfers in the message. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-12spi: fsl-espi: factor out handling of read dataHeiner Kallweit1-20/+21
Factor out copying read data to the read buffers in the original message to a new function fsl_espi_copy_from_buf. This also allows to simplify fsl_espi_copy_to_buf. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-12spi: fsl-espi: centralize populating struct spi_transferHeiner Kallweit1-12/+12
Better structure the code by population all elements of struct spi_transfer in one place. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-12spi: fsl-espi: factor out initial message checkingHeiner Kallweit1-14/+29
Checking the message is currently done at diffrent places in the driver. Factor it out to fsl_espi_check_message. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-12spi: fsl-espi: merge fsl_espi_bufs and fsl_espi_cpu_bufsHeiner Kallweit1-19/+8
fsl_espi_bufs and fsl_espi_cpu_bufs are very small that we can merge them. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-12spi: fsl-espi: improve return value handling in fsl_espi_bufsHeiner Kallweit1-4/+1
Return a proper status code from fsl_espi_bufs instead of returning the number of remaining words and let the caller evaluate it. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-12spi: fsl-espi: merge fsl_espi_cmd_trans and fsl_espi_rw_transHeiner Kallweit1-27/+6
fsl_espi_cmd_trans and fsl_espi_rw_trans share most of the code so we can merge them. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-12spi: fsl-espi: eliminate struct fsl_espi_transferHeiner Kallweit1-36/+20
The remaining elements of struct fsl_espi_transfer are part of struct spi_transfer anyway. So we can get rid of struct fsl_espi_transfer and use a struct spi_transfer only. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-12spi: fsl-espi: remove element actual_length from struct fsl_espi_transHeiner Kallweit1-6/+2
If an error occurs during processing the message, then we don't have to populate the actual_length element of struct message. So we can get rid of element actual_length in struct fsl_espi_transfer. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-12spi: fsl-espi: fix status handling in fsl_espi_do_one_msgHeiner Kallweit1-2/+5
If an error occurred during message handling return this error instead of always returning 0 and align the code with the generic implementation in spi_transfer_one_message. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-12spi: fsl-espi: remove element status from struct fsl_espi_transferHeiner Kallweit1-21/+26
Use the return values of the functions in the call chain to transport status information instead of using an element in struct fsl_espi_transfer for this. This is more in line with the general approach how to handle status information and is one step further to eventually get rid of struct fsl_espi_transfer completely. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-12spi: fsl-espi: factor out filling the local bufferHeiner Kallweit1-22/+24
Better structure the code by factoring out filling the local buffer. In addition don't initialize the complete local buffer at the beginning of fsl_espi_do_one_msg. Instead move initialization of those parts of the local buffer to be used for transfers w/o tx_buf to fsl_espi_copy_to_buf. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-12spi: fsl-espi: pre-allocate message bufferHeiner Kallweit1-23/+18
Currently the driver allocates a 64kb buffer for each single message. On systems with little and fragmented memory this can result in memory allocation errors. Solve this by pre-allocating a buffer. This patch was developed in OpenWRT long ago, however it never made it upstream. I slightly modified the original patch to re-initialize the buffer at the beginning of each transfer. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-06spi: fsl-espi: remove unneeded check in fsl_espi_do_transHeiner Kallweit1-2/+1
SPI core takes care that both values are always populated. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-06spi: fsl-espi: simplify fsl_espi_setup_transferHeiner Kallweit1-3/+1
Simplify fsl_espi_setup_transfer a little. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-06spi: fsl-espi: remove unused elements n_rx and n_tx in struct fsl_espi_transferHeiner Kallweit1-11/+1
Both elements are not used, so remove them. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-01spi: fsl-espi: remove unneeded variable in fsl_espi_do_transHeiner Kallweit1-15/+8
Creating a message, adding one transfer, and then iterating over all transfers in the message doesn't make sense. We can simply use the original transfer directly. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-01spi: fsl-espi: add missing static declaration to fsl_espi_cpu_irqHeiner Kallweit1-1/+1
Add missing static declaration to fsl_espi_cpu_irq. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-01spi: fsl-espi: change return type of fsl_espi_cpu_bufs to voidHeiner Kallweit1-6/+2
fsl_espi_cpu_bufs always returns 0, so change the return type to void. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-01spi: fsl-espi: change return type of fsl_espi_setup_transfer to voidHeiner Kallweit1-15/+4
fsl_espi_setup_transfer always returns 0, so change the return type to void. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-01spi: fsl-espi: dont include irq.hHeiner Kallweit1-1/+0
irq.h isn't needed and it even shouldn't be included, see comment at the beginning of this header file. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-08-18spi: fsl-espi: eliminate spi nor flash read loopHeiner Kallweit1-70/+21
The fsl-espi driver contains a read loop that implicitely assumes that the device to read from is a m25p80 SPI NOR flash (bytes 2 - 4 of the first write transfer are interpreted as 3 byte flash address). Now that we have such a read loop in the spi-nor driver and are able to correctly indicate the message size limit of the controller, the read loop can be removed from the fsl-espi driver. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-03-28spi/fsl-espi: avoid infinite loops on fsl_espi_cpu_irq()Nobuteru Hayashi1-1/+9
It brought nearly infinite loops, and was possible to be occurred only if the SPI transaction total size are not alighed with 4. Loops are here at while (tmp--), tmp is unsigned, and set it with minus value. The loops are executed as a result of unexpected RX interrupt occurrence after that. This interrupt may be hardware eratta and is not fixed. Fix mspi->len from minus value to 0 and print warning message. Signed-off-by: Nobuteru Hayashi <hayashi.nbb@ncos.nec.co.jp> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-03-28spi/fsl-espi: Don't wait transaction completion foreverNobuteru Hayashi1-1/+6
Because the eSPI driver uses wait_for_completion(), any stuck-able phenomenon at half-way transaction progress made worker task hang up. This phenomenon is perhaps caused by eSPI device errata which seems not to be published from vendor site yet. Anyway, we fix hang task by using fixed 2 seconds timeout that is our preferred value for eSPI maximum transaction size. It seems to be better that eSPI driver can detect this stuck and report error (EMSGSIZE) to the upper device driver because the upper device driver can decide to retry or recover. Signed-off-by: Nobuteru Hayashi <hayashi.nbb@ncos.nec.co.jp> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-03-28spi/fsl-espi: Don't spin forever on SPIE_RXCNTNobuteru Hayashi1-3/+10
Infinite loop on SPIE_RXCNT occurred. while (SPIE_RXCNT(events) < min(4, mspi->len)) { cpu_relax(); events = mpc8xxx_spi_read_reg(&reg_base->event); } We met a soft lockup at fsl_espi_cpu_irq() because of this. Fix it by using spin_event_timeout() so that fsl_espi_cpu_irq() can break loop with timeouts dmesg. Signed-off-by: Nobuteru Hayashi <hayashi.nbb@ncos.nec.co.jp> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-22spi/fsl-espi: Correct the maximum transaction lengthHou Zhiqiang1-2/+2
The maximum length during one transcation is 64KiB. Signed-off-by: Hou Zhiqiang <B48286@freescale.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-05spi: fsl-espi: expose maximum transfer size limitMichal Suchanek1-0/+6
The fsl-espi hardware can trasfer at most 64K data so report teh limitation. Based on patch by Heiner Kallweit <hkallweit1@gmail.com> CC: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Michal Suchanek <hramrach@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-08-30spi: fsl-(e)spi: Fix checking return value of devm_ioremap_resourceAxel Lin1-2/+2
devm_ioremap_resource() returns ERR_PTR on error. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-08-28spi: fsl-espi: add runtime PMHeiner Kallweit1-17/+54
Add runtime PM and use autosuspend instead of suspending the SPI controller after each transfer. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-08-28spi: fsl-(e)spi: simplify cleanup codeHeiner Kallweit1-6/+0
Now that most cleanup is done automatically the remove functions can be significantly simplified. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-08-28spi: fsl-(e)spi: migrate to using devm_ functions to simplify cleanupHeiner Kallweit1-15/+5
Migrate fsl-espi and fsl-spi to using the managed devm_ functions for resource handling. This simplifies the cleanup. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-06-18Merge remote-tracking branches 'spi/fix/fsl-dspi', 'spi/fix/fsl-espi', ↵Mark Brown1-1/+5
'spi/fix/orion' and 'spi/fix/pl022' into spi-linus
2015-05-22spi: fsl-espi: Fix an error that can cause fsl espi task blockedJane Wan1-1/+5
Incorrect condition is used in spin_event_timeout(). When the TX is done, the SPIE_NF bit in ESPI_SPIE register is set to 1 to indicate the Tx FIFO is not full. If the bit is 0, it indicates the Tx FIFO is full. Due to this error, if the Tx FIFO is full at the beginning, but becomes not full after handling the Rx FIFO (the SPIE_NF bit is set), the spin_event_timeout() returns with timeout occurred. It causes the interrupt handler not to send completion notification to the thread that called wait_for_complete() waiting for the notification. Signed-off-by: Jane Wan <Jane.Wan@gainspeed.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-04-25spi: fsl-espi: fix behaviour for full-duplex xfersJonatas Rech1-14/+31
This patch makes possible for protocol drivers to do full-duplex SPI transfers properly. Until now this driver could only be used for half-duplex transfers, since it always expected an spi_transfer with non-null tx_buf to be only used for TX, and those with non-null rx_buf to be only used for RX. The fix consists in correcting the fsl_espi_transfer length by taking into consideration duplex spi_transfers, and not just by adding n_tx and n_rx. Furthermore, this correction has exposed an inconsistency in the protocol driver <-> controller driver interaction. The spi-fsl-espi driver artificially inserts TX bytes when message fragmentation is necessary (due to SPCOM_TRANLEN_MAX) instead of informing the protocol driver of the hardware limitation. This was tested with the m25p80 NOR flash protocol driver. Since fixing this issue may cause other client drivers to malfunction, it was left as is. Signed-off-by: Jonatas Rech <jonatas.rech@datacom.ind.br> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-12-15Merge tag 'driver-core-3.19-rc1' of ↵Linus Torvalds1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core update from Greg KH: "Here's the set of driver core patches for 3.19-rc1. They are dominated by the removal of the .owner field in platform drivers. They touch a lot of files, but they are "simple" changes, just removing a line in a structure. Other than that, a few minor driver core and debugfs changes. There are some ath9k patches coming in through this tree that have been acked by the wireless maintainers as they relied on the debugfs changes. Everything has been in linux-next for a while" * tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits) Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries" fs: debugfs: add forward declaration for struct device type firmware class: Deletion of an unnecessary check before the function call "vunmap" firmware loader: fix hung task warning dump devcoredump: provide a one-way disable function device: Add dev_<level>_once variants ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries ath: use seq_file api for ath9k debugfs files debugfs: add helper function to create device related seq_file drivers/base: cacheinfo: remove noisy error boot message Revert "core: platform: add warning if driver has no owner" drivers: base: support cpu cache information interface to userspace via sysfs drivers: base: add cpu_device_create to support per-cpu devices topology: replace custom attribute macros with standard DEVICE_ATTR* cpumask: factor out show_cpumap into separate helper function driver core: Fix unbalanced device reference in drivers_probe driver core: fix race with userland in device_add() sysfs/kernfs: make read requests on pre-alloc files use the buffer. sysfs/kernfs: allow attributes to request write buffer be pre-allocated. fs: sysfs: return EGBIG on write if offset is larger than file size ...
2014-12-03spi: fsl-espi: add (un)prepare_transfer_hardware calls to save power if SPI ↵Heiner Kallweit1-11/+35
is not in use Use (un)prepare_transfer_hardware calls to set fsl-espi to low-power idle if not in use. Reference manual states: "The eSPI is in a idle state and consumes minimal power. The eSPI BRG is not functioning and the input clock is disabled" Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-12-03spi: fsl-(e)spi: migrate to generic master queueingHeiner Kallweit1-7/+6
Migrates the fsl-(e)spi driver to use the generic master queuing. Avoids the "master is unqueued, this is deprecated" warning. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-20spi: drop owner assignment from platform_driversWolfram Sang1-1/+0
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-10-03Merge remote-tracking branches 'spi/topic/davinci', 'spi/topic/doc', ↵Mark Brown1-6/+6
'spi/topic/dw' and 'spi/topic/fsl' into spi-next
2014-09-29spi: fsl: Sort include headers alphabeticallyXiubo Li1-6/+6
Sort all the include headers alphabetically for the freescale spi drivers. If the inlcude headers sorted out of order, maybe the best logical choice is to append new ones after the exist ones, while this may create a lot of potential for duplicates and conflicts for each diffenent changes will add new headers in the same location. Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-01spi: fsl: Don't use devm_kzalloc in master->setup callbackAxel Lin1-3/+12
device_add() expects that any memory allocated via devm_* API is only done in the device's probe function. Fix below boot warning: [ 3.092348] WARNING: at drivers/base/dd.c:286 [ 3.096637] Modules linked in: [ 3.099697] CPU: 0 PID: 25 Comm: kworker/u2:1 Tainted: G W 3.16.1-s3k-drv-999-svn5771_knld-999 #158 [ 3.109610] Workqueue: deferwq deferred_probe_work_func [ 3.114736] task: c787f020 ti: c790c000 task.ti: c790c000 [ 3.120062] NIP: c01df158 LR: c01df144 CTR: 00000000 [ 3.124983] REGS: c790db30 TRAP: 0700 Tainted: G W (3.16.1-s3k-drv-999-svn5771_knld-999) [ 3.134162] MSR: 00029032 <EE,ME,IR,DR,RI> CR: 22002082 XER: 20000000 [ 3.140703] [ 3.140703] GPR00: 00000001 c790dbe0 c787f020 00000044 00000054 00000308 c056da0e 20737069 [ 3.140703] GPR08: 33323736 000ebfe0 00000308 000ebfdf 22002082 00000000 c046c5a0 c046c608 [ 3.140703] GPR16: c046c614 c046c620 c046c62c c046c638 c046c648 c046c654 c046c68c c046c6c4 [ 3.140703] GPR24: 00000000 00000000 00000003 c0401aa0 c0596638 c059662c c054e7a8 c7996800 [ 3.170102] NIP [c01df158] driver_probe_device+0xf8/0x334 [ 3.175431] LR [c01df144] driver_probe_device+0xe4/0x334 [ 3.180633] Call Trace: [ 3.183093] [c790dbe0] [c01df144] driver_probe_device+0xe4/0x334 (unreliable) [ 3.190147] [c790dc10] [c01dd15c] bus_for_each_drv+0x7c/0xc0 [ 3.195741] [c790dc40] [c01df5fc] device_attach+0xcc/0xf8 [ 3.201076] [c790dc60] [c01dd6d4] bus_probe_device+0xb4/0xc4 [ 3.206666] [c790dc80] [c01db9f8] device_add+0x270/0x564 [ 3.211923] [c790dcc0] [c0219e84] spi_add_device+0xc0/0x190 [ 3.217427] [c790dce0] [c021a79c] spi_register_master+0x720/0x834 [ 3.223455] [c790dd40] [c021cb48] of_fsl_spi_probe+0x55c/0x614 [ 3.229234] [c790dda0] [c01e0d2c] platform_drv_probe+0x30/0x74 [ 3.234987] [c790ddb0] [c01df18c] driver_probe_device+0x12c/0x334 [ 3.241008] [c790dde0] [c01dd15c] bus_for_each_drv+0x7c/0xc0 [ 3.246602] [c790de10] [c01df5fc] device_attach+0xcc/0xf8 [ 3.251937] [c790de30] [c01dd6d4] bus_probe_device+0xb4/0xc4 [ 3.257536] [c790de50] [c01de9d8] deferred_probe_work_func+0x98/0xe0 [ 3.263816] [c790de70] [c00305b8] process_one_work+0x18c/0x440 [ 3.269577] [c790dea0] [c0030a00] worker_thread+0x194/0x67c [ 3.275105] [c790def0] [c0039198] kthread+0xd0/0xe4 [ 3.279911] [c790df40] [c000c6d0] ret_from_kernel_thread+0x5c/0x64 [ 3.285970] Instruction dump: [ 3.288900] 80de0000 419e01d0 3b7b0038 3c60c046 7f65db78 38635264 48211b99 813f00a0 [ 3.296559] 381f00a0 7d290278 3169ffff 7c0b4910 <0f000000> 93df0044 7fe3fb78 4bfffd4d Reported-by: leroy christophe <christophe.leroy@c-s.fr> Signed-off-by: Axel Lin <axel.lin@ingics.com> Tested-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Mark Brown <broonie@kernel.org> Cc: stable@vger.kernel.org
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