kernel/linux.git/drivers/dma/fsl_raid.c, branch v6.12.80

dmaengine: fsl_raid: Convert to platform remove callback returning void

2023-09-28T07:40:48+00:00

The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Eventually after all drivers are converted, .remove_new() is renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20230919133207.1400430-15-u.kleine-koenig@pengutronix.de Signed-off-by: Vinod Koul

dmaengine: Explicitly include correct DT includes

2023-08-01T18:21:27+00:00

The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Signed-off-by: Rob Herring Link: https://lore.kernel.org/r/20230718143138.1066177-1-robh@kernel.org Signed-off-by: Vinod Koul

dmaengine: fsl: remove bad channel update

2020-10-05T04:29:17+00:00

Commit 59cd818763e8 ("dmaengine: fsl: convert tasklets to use new tasklet_setup() API") broke this driver by not removing the old channel update method. Fix this by remove the offending call as channel is queried from tasklet structure. Fixes: 59cd818763e8 ("dmaengine: fsl: convert tasklets to use new tasklet_setup() API") Signed-off-by: Vinod Koul Link: https://lore.kernel.org/r/20201001164740.178977-1-vkoul@kernel.org Signed-off-by: Vinod Koul

dmaengine: fsl: convert tasklets to use new tasklet_setup() API

2020-09-18T06:51:07+00:00

In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier Signed-off-by: Allen Pais Link: https://lore.kernel.org/r/20200831134745.314945-1-allen.lkml@gmail.com Signed-off-by: Vinod Koul

dmaengine: fsl_raid: make of_device_ids const.

2017-06-29T03:55:28+00:00

of_device_ids are not supposed to change at runtime. All functions working with of_device_ids provided by work with const of_device_ids. So mark the non-const structs as const. File size before: text data bss dec hex filename 3981 608 0 4589 11ed drivers/dma/fsl_raid.o File size after constify: text data bss dec hex filename 4381 192 0 4573 11dd drivers/dma/fsl_raid.o Signed-off-by: Arvind Yadav Signed-off-by: Vinod Koul

dmaengine: fsl_raid: Fix module autoload

2016-11-14T03:05:13+00:00

If the driver is built as a module, autoload won't work because the module alias information is not filled. So user-space can't match the registered device with the corresponding module. Export the module alias information using the MODULE_DEVICE_TABLE() macro. Before this patch: $ modinfo drivers/dma/fsl_raid.ko | grep alias $ After this patch: $ modinfo drivers/dma/fsl_raid.ko | grep alias alias: of:N*T*Cfsl,raideng-v1.0C* alias: of:N*T*Cfsl,raideng-v1.0 Signed-off-by: Javier Martinez Canillas Signed-off-by: Vinod Koul

Merge tag 'dmaengine-4.9-rc1' of git://git.infradead.org/users/vkoul/slave-dma

2016-10-07T00:13:54+00:00

Pull dmaengine updates from Vinod Koul: "This is bit large pile of code which bring in some nice additions: - Error reporting: we have added a new mechanism for users of dmaenegine to register a callback_result which tells them the result of the dma transaction. Right now only one user (ntb) is using it. - As we discussed on KS mailing list and pointed out NO_IRQ has no place in kernel, this also remove NO_IRQ from dmaengine subsystem (both arm and ppc users) - Support for IOMMU slave transfers and its implementation for arm. - To get better build coverage, enable COMPILE_TEST for bunch of driver, and fix the warning and sparse complaints on these. - Apart from above, usual updates spread across drivers" * tag 'dmaengine-4.9-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (169 commits) async_pq_val: fix DMA memory leak dmaengine: virt-dma: move function declarations dmaengine: omap-dma: Enable burst and data pack for SG DT: dmaengine: rcar-dmac: document R8A7743/5 support dmaengine: fsldma: Unmap region obtained by of_iomap dmaengine: jz4780: fix resource leaks on error exit return dma-debug: fix ia64 build, use PHYS_PFN dmaengine: coh901318: fix integer overflow when shifting more than 32 places dmaengine: edma: avoid uninitialized variable use dma-mapping: fix m32r build warning dma-mapping: fix ia64 build, use PHYS_PFN dmaengine: ti-dma-crossbar: enable COMPILE_TEST dmaengine: omap-dma: enable COMPILE_TEST dmaengine: edma: enable COMPILE_TEST dmaengine: ti-dma-crossbar: Fix of_device_id data parameter usage dmaengine: ti-dma-crossbar: Correct type for of_find_property() third parameter dmaengine/ARM: omap-dma: Fix the DMAengine compile test on non OMAP configs dmaengine: edma: Rename set_bits and remove unused clear_bits helper dmaengine: edma: Use correct type for of_find_property() third parameter dmaengine: edma: Fix of_device_id data parameter usage (legacy vs TPCC) ...

Merge branch 'topic/unmap_cleanup' into for-linus

2016-10-03T04:06:11+00:00

Merge branch 'topic/err_reporting' into for-linus

2016-10-03T03:47:33+00:00

Signed-off-by: Vinod Koul Conflicts: drivers/dma/cppi41.c

dmaengine: NO_IRQ removal from powerpc-only drivers

2016-09-14T13:27:38+00:00

We'd like to eventually remove NO_IRQ on powerpc, so remove usages of it from powerpc-only drivers. Signed-off-by: Michael Ellerman Signed-off-by: Vinod Koul