[PATCH v7 08/17] drivers/spi: Use ARCH_DMA_MINALIGN instead of ARCH_KMALLOC_MINALIGN

Catalin Marinas catalin.marinas at arm.com
Mon Jun 12 08:31:52 PDT 2023


ARCH_DMA_MINALIGN represents the minimum (static) alignment for safe DMA
operations while ARCH_KMALLOC_MINALIGN is the minimum kmalloc() objects
alignment.

Signed-off-by: Catalin Marinas <catalin.marinas at arm.com>
Acked-by: Mark Brown <broonie at kernel.org>
Tested-by: Isaac J. Manjarres <isaacmanjarres at google.com>
---
 drivers/spi/spidev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c
index 39d94c850839..8d009275a59d 100644
--- a/drivers/spi/spidev.c
+++ b/drivers/spi/spidev.c
@@ -237,7 +237,7 @@ static int spidev_message(struct spidev_data *spidev,
 		/* Ensure that also following allocations from rx_buf/tx_buf will meet
 		 * DMA alignment requirements.
 		 */
-		unsigned int len_aligned = ALIGN(u_tmp->len, ARCH_KMALLOC_MINALIGN);
+		unsigned int len_aligned = ALIGN(u_tmp->len, ARCH_DMA_MINALIGN);
 
 		k_tmp->len = u_tmp->len;
 



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