projects / linux-2.6-block.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: c5f78f4) | patch
iio: potentiometer: mcp4131: Fix alignment for DMA safety
authorJonathan Cameron <Jonathan.Cameron@huawei.com>
Sun, 8 May 2022 17:57:04 +0000 (18:57 +0100)
committerJonathan Cameron <Jonathan.Cameron@huawei.com>
Tue, 14 Jun 2022 10:53:19 +0000 (11:53 +0100)
commit4842e5de6f39ebf2c0f6da9e6a0cb751c7108507
tree9d05597c4b9342c8e67b993e84079b67fa73c67ftree | snapshot
parentc5f78f4d2168ba21324095b0d46d4353c2eace4dcommit | diff
iio: potentiometer: mcp4131: Fix alignment for DMA safety

____cacheline_aligned is an insufficient guarantee for non-coherent DMA
on platforms with 128 byte cachelines above L1.  Switch to the updated
IIO_DMA_MINALIGN definition.

Fixes: 22d199a53910 ("iio: potentiometer: add driver for Microchip MCP413X/414X/415X/416X/423X/424X/425X/426X")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-85-jic23@kernel.org
drivers/iio/potentiometer/mcp4131.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)