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| author | Douglas Anderson <dianders@chromium.org> | 2026-04-06 16:23:00 -0700 |
|---|---|---|
| committer | Danilo Krummrich <dakr@kernel.org> | 2026-04-26 23:43:58 +0200 |
| commit | 3e2c1e213ac2bfc9068a2686ef380ee0d8bef949 (patch) | |
| tree | 4741361eebcf4801091840c606ea377d956c2634 /arch/arc | |
| parent | 7befbf1281290876734046996ee861d7539532c1 (diff) | |
| download | linux-next-3e2c1e213ac2bfc9068a2686ef380ee0d8bef949.tar.gz linux-next-3e2c1e213ac2bfc9068a2686ef380ee0d8bef949.zip | |
driver core: Replace dev->dma_coherent with dev_dma_coherent()
In C, bitfields are not necessarily safe to modify from multiple
threads without locking. Switch "dma_coherent" over to the "flags"
field so modifications are safe.
Cc: Christoph Hellwig <hch@lst.de>
Reviewed-by: Rafael J. Wysocki (Intel) <rafael@kernel.org>
Reviewed-by: Danilo Krummrich <dakr@kernel.org>
Acked-by: Vinod Koul <vkoul@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patch.msgid.link/20260406162231.v5.7.If839f6dde98979fce177f70c6c74689a1904ee76@changeid
[ Since all DEV_FLAG_DMA_COHERENT accessors are exposed unconditionally,
also drop the CONFIG guards around dev_assign_dma_coherent() in
device_initialize() to ensure a correct default value. - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Diffstat (limited to 'arch/arc')
| -rw-r--r-- | arch/arc/mm/dma.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c index 6b85e94f3275..9b9adb02b4c5 100644 --- a/arch/arc/mm/dma.c +++ b/arch/arc/mm/dma.c @@ -98,8 +98,8 @@ void arch_setup_dma_ops(struct device *dev, bool coherent) * DMA buffers. */ if (is_isa_arcv2() && ioc_enable && coherent) - dev->dma_coherent = true; + dev_set_dma_coherent(dev); dev_info(dev, "use %scoherent DMA ops\n", - dev->dma_coherent ? "" : "non"); + dev_dma_coherent(dev) ? "" : "non"); } |