spi: Use BITS_TO_BYTES()

BITS_TO_BYTES() is the existing macro which takes care about full
bytes that may fully hold the given amount of bits. Use it.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230714091748.89681-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 05f7023..8d6304c 100644 (file)
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -3877,11 +3877,9 @@ static int __spi_validate(struct spi_device *spi, struct spi_message *message)
         */
        if ((spi->mode & SPI_CS_WORD) && (!(ctlr->mode_bits & SPI_CS_WORD) ||
                                          spi_get_csgpiod(spi, 0))) {
-               size_t maxsize;
+               size_t maxsize = BITS_TO_BYTES(spi->bits_per_word);
                int ret;
 
-               maxsize = (spi->bits_per_word + 7) / 8;
-
                /* spi_split_transfers_maxsize() requires message->spi */
                message->spi = spi;