[PATCH v1 1/1] spi: Replace open coded variant of spi_bpw_to_bytes()

From: Andy Shevchenko

Date: Mon Mar 23 2026 - 10:45:03 EST


__spi_validate() open codes the functionality of spi_bpw_to_bytes().
Replace the custom piece by the call to the mentioned function.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
drivers/spi/spi.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 200d942c85bb..cd1561d84e73 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -4222,12 +4222,7 @@ static int __spi_validate(struct spi_device *spi, struct spi_message *message)
* SPI transfer length should be multiple of SPI word size
* where SPI word size should be power-of-two multiple.
*/
- if (xfer->bits_per_word <= 8)
- w_size = 1;
- else if (xfer->bits_per_word <= 16)
- w_size = 2;
- else
- w_size = 4;
+ w_size = spi_bpw_to_bytes(xfer->bits_per_word);

/* No partial transfers accepted */
if (xfer->len % w_size)
--
2.50.1