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linux-stable/drivers/dma
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Vladimir Murzin ce65d55f92 dmaengine: dmatest: Prevent to run on misconfigured channel 
Andy reported that commit 6b41030fdc ("dmaengine: dmatest:
Restore default for channel") broke his scripts for the case
where "busy" channel is used for configuration with expectation
that run command would do nothing. Instead, behavior was
(unintentionally) changed to treat such case as under-configuration
and progress with defaults, i.e. run command would start a test
with default setting for channel (which would use all channels).

Restore original behavior with tracking status of channel setter
so we can distinguish between misconfigured and under-configured
cases in run command and act accordingly.

Fixes: 6b41030fdc ("dmaengine: dmatest: Restore default for channel")
Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Tested-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200922115847.30100-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-22 20:18:05 +05:30
..
bestcomm treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
dw Merge branch 'for-linus' into fixes 2020-08-05 19:02:07 +05:30
dw-axi-dmac dmaengine: virt-dma: Add missing locking 2019-12-26 10:04:18 +05:30
dw-edma dmaengine: dw-edma: Fix scatter-gather address calculation 2020-08-25 16:37:33 +05:30
fsl-dpaa2-qdma dmaengine: fsl-dpaa2-qdma: remove set but not used variable 'dpaa2_qdma' 2020-03-06 19:04:55 +05:30
hsu dmaengine updates for v5.3-rc1 2019-07-17 09:55:43 -07:00
idxd dmaengine: idxd: reset states after device disable or reset 2020-08-17 10:25:04 +05:30
ioat pci-v5.9-changes 2020-08-07 18:48:15 -07:00
ipu treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
mediatek dmaengine: mediatek: mtk-hsdma: Fix formatting in 'struct mtk_hsdma_pdesc' doc block 2020-07-15 17:50:46 +05:30
ppc4xx dmaengine: ppc4xx: Use scnprintf() for avoiding potential buffer overflow 2020-03-11 15:10:45 +05:30
qcom treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
sf-pdma iov_iter: Move unnecessary inclusion of crypto/hash.h 2020-06-30 09:34:23 -04:00
sh treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
ti dmaengine: ti: k3-udma: Update rchan_oes_offset for am654 SYSFW ABI 3.0 2020-09-03 12:53:53 +05:30
xilinx dmaengine: xilinx: dpdma: Fix kerneldoc warning 2020-07-22 22:01:13 +05:30
acpi-dma.c dmaengine: acpi: Put the CSRT table after using it 2020-08-17 10:21:37 +05:30
altera-msgdma.c dmaengine: altera-msgdma: Fix struct documentation blocks 2020-07-15 17:50:46 +05:30
amba-pl08x.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
at_hdmac.c dmaengine: at_hdmac: add missing kfree() call in at_dma_xlate() 2020-08-19 09:58:38 +05:30
at_hdmac_regs.h dmaengine: at_hdmac: Replace zero-length array with flexible-array 2020-05-13 20:25:16 +05:30
at_xdmac.c dmaengine: at_xdmac: Replace zero-length array with flexible-array 2020-05-13 20:25:41 +05:30
bcm-sba-raid.c dmaengine: bcm-sba-raid: Replace zero-length array with flexible-array member 2020-02-13 20:15:35 +05:30
bcm2835-dma.c dmaengine: bcm2835: do not call vchan_vdesc_fini() with lock held 2019-12-26 10:04:18 +05:30
coh901318.c dmaengine: coh901318: Fix a double lock bug in dma_tc_handle() 2020-02-24 21:59:45 +05:30
coh901318.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
coh901318_lli.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
dma-axi-dmac.c dmaengine: axi-dmac: add a check for devm_regmap_init_mmio 2019-12-11 16:11:50 +05:30
dma-jz4780.c drivers/dma/dma-jz4780: Fix race condition between probe and irq handler 2020-08-25 16:45:17 +05:30
dmaengine.c dmaengine: Introduce DMA-device device_caps callback 2020-07-27 14:30:55 +05:30
dmaengine.h dmaengine: Create debug directories for DMA devices 2020-03-11 14:56:14 +05:30
dmatest.c dmaengine: dmatest: Prevent to run on misconfigured channel 2020-09-22 20:18:05 +05:30
ep93xx_dma.c dmaengine: ep93xx_dma: Provide some missing struct attribute documentation 2020-07-15 17:50:46 +05:30
fsl-edma-common.c dmaengine: fsl-edma: fix wrong tcd endianness for big-endian cpu 2020-07-06 14:49:22 +05:30
fsl-edma-common.h dmaengine: fsl-edma-common: correct DSIZE_32BYTE 2020-07-06 10:24:49 +05:30
fsl-edma.c dmaengine: fsl-edma: Fix NULL pointer exception in fsl_edma_tx_handler 2020-06-24 13:05:01 +05:30
fsl-qdma.c dmaengine: Extend NXP QDMA driver to check transmission errors 2020-07-17 11:50:03 +05:30
fsl_raid.c
fsl_raid.h
fsldma.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
fsldma.h fsldma: fix very broken 32-bit ppc ioread64 functionality 2020-08-29 13:50:56 -07:00
hisi_dma.c dmaengine: hisilicon: Use struct_size() in devm_kzalloc() 2020-06-24 11:26:23 +05:30
idma64.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
idma64.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
img-mdc-dma.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 422 2019-06-05 17:37:15 +02:00
imx-dma.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
imx-sdma.c Merge branch 'for-linus' into fixes 2020-08-05 19:02:07 +05:30
iop-adma.c dmaengine: iop-adma: Function parameter documentation must adhere to correct formatting 2020-07-15 17:50:47 +05:30
iop-adma.h treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
k3dma.c dmaengine: k3dma: Avoid null pointer traversal 2019-12-23 13:21:14 +05:30
Kconfig Merge branch 'topic/xilinx' into fixes 2020-08-07 11:13:37 +05:30
lpc18xx-dmamux.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
Makefile dmaengine: uniphier-xdmac: Add UniPhier external DMA controller driver 2020-03-02 14:54:34 +05:30
mcf-edma.c dmaengine: mcf-edma: Fix NULL pointer exception in mcf_edma_tx_handler 2020-06-24 13:06:15 +05:30
mic_x100_dma.c dmaengine updates for v5.3-rc1 2019-07-17 09:55:43 -07:00
mic_x100_dma.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 290 2019-06-05 17:36:38 +02:00
milbeaut-hdmac.c dmaengine: Replace zero-length array with flexible-array 2020-06-15 23:08:30 -05:00
milbeaut-xdmac.c dmaengine: Replace zero-length array with flexible-array 2020-06-15 23:08:30 -05:00
mmp_pdma.c dmaengine: mmp_pdma: Demote obvious misuse of kerneldoc to standard comment blocks 2020-07-15 17:50:46 +05:30
mmp_tdma.c dmaengine: mmp_tdma: share the IRQ line 2020-06-16 21:59:01 +05:30
moxart-dma.c dmaengine: Replace zero-length array with flexible-array 2020-06-15 23:08:30 -05:00
mpc512x_dma.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 7 2019-05-21 11:28:40 +02:00
mv_xor.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
mv_xor.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
mv_xor_v2.c dmaengine: mv_xor_v2: Supply some missing 'struct mv_xor_v2_device' attribute docs 2020-07-15 17:50:47 +05:30
mxs-dma.c dmaengine updates for v5.3-rc1 2019-07-17 09:55:43 -07:00
nbpfaxi.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
of-dma.c dmaengine: of-dma: Fix of_dma_router_xlate's of_dma_xlate handling 2020-08-17 11:14:28 +05:30
owl-dma.c dmaengine: Actions: Add support for S700 DMA engine 2020-07-27 14:43:08 +05:30
pch_dma.c dmaengine: pch_dma.c: Avoid data race between probe and irq handler 2020-04-23 11:47:16 +05:30
pl330.c dmaengine fixes for v5.9-rc4 2020-09-04 12:12:39 -07:00
plx_dma.c dmaengine: plx-dma: Implement descriptor submission 2020-01-15 19:40:51 +05:30
pxa_dma.c dmaengine updates for v5.3-rc1 2019-07-17 09:55:43 -07:00
s3c24xx-dma.c dmaengine: s3c24xx-dma: fix spelling mistake "to" -> "too" 2020-01-23 17:03:25 +05:30
sa11x0-dma.c dmaengine: sa11x0: Replace zero-length array with flexible-array member 2020-02-19 17:48:40 +05:30
sirf-dma.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 4 2019-05-21 11:28:40 +02:00
sprd-dma.c dmaengine: sprd: Set request pending flag when DMA controller is active 2020-03-23 11:38:24 +05:30
st_fdma.c iov_iter: Move unnecessary inclusion of crypto/hash.h 2020-06-30 09:34:23 -04:00
st_fdma.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ste_dma40.c dmaengine: ste_dma40: Supply 2 missing struct attribute descriptions 2020-07-15 17:50:46 +05:30
ste_dma40_ll.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
ste_dma40_ll.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
stm32-dma.c dmaengine: stm32-dma: direct mode support through device tree 2020-04-27 21:40:12 +05:30
stm32-dmamux.c dmaengine: stm32-dmamux: driver defers probe for clock and reset 2020-02-24 22:22:44 +05:30
stm32-mdma.c dmaengine: stm32-mdma: use vchan_terminate_vdesc() in .terminate_all 2020-02-24 22:20:01 +05:30
sun4i-dma.c dmaengine: sun4i-dma: Demote obvious misuse of kerneldoc to standard comment blocks 2020-07-15 17:50:47 +05:30
sun6i-dma.c dmaengine: Remove dev_err() usage after platform_get_irq() 2019-07-31 20:50:53 +05:30
tegra20-apb-dma.c dmaengine: tegra-apb: Replace zero-length array with flexible-array 2020-06-15 23:08:32 -05:00
tegra210-adma.c dmaengine: tegra210-adma: Fix runtime PM imbalance on error 2020-06-24 15:11:39 +05:30
timb_dma.c dmaengine: Replace zero-length array with flexible-array 2020-06-15 23:08:30 -05:00
TODO
txx9dmac.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
txx9dmac.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
uniphier-mdmac.c dmaengine: uniphier-mdmac: replace zero-length array with flexible-array member 2020-02-13 20:15:57 +05:30
uniphier-xdmac.c iov_iter: Move unnecessary inclusion of crypto/hash.h 2020-06-30 09:34:23 -04:00
virt-dma.c dmaengine updates for v5.6-rc1 2020-01-27 10:55:50 -08:00
virt-dma.h dmaengine: virt-dma: Add missing locking around list operations 2019-12-26 10:04:18 +05:30
xgene-dma.c dmaengine: xgene-dma: Provide descriptions for 'dev' and 'clk' in device's ddata 2020-07-15 17:50:47 +05:30
zx_dma.c dmaengine: zx: remove: removed dmam_pool_destroy 2019-11-14 12:16:53 +05:30