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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org dma_cap_set()/dma_cap_clear() and imx-sdma event_mask setup use atomic set_bit()/clear_bit() in contexts where no concurrent access is possible: - dma_cap_set()/dma_cap_clear() are called exclusively during driver probe, before dma_async_device_register() makes the device visible. - imx-sdma event_mask[] is zeroed and configured during channel setup while the channel is disabled. Switch both to non-atomic __set_bit()/__clear_bit() equivalents. Signed-off-by: Peng Fan --- Peng Fan (3): dmaengine: Use non-atomic bit ops for cap_mask manipulation dmaengine: imx-sdma: Use non-atomic __set_bit() for event_mask setup dmaengine: imx-sdma: Use __assign_bit() for ownership configuration drivers/dma/imx-sdma.c | 21 +++++---------------- include/linux/dmaengine.h | 4 ++-- 2 files changed, 7 insertions(+), 18 deletions(-) --- base-commit: 89c07d98716a13454ec3fd9f97689e812cc71bd4 change-id: 20260903-dma-mask-ddf64d770f7d Best regards, -- Peng Fan