From 70526e0b7601792bf546044fff92c368112f1d3f Mon Sep 17 00:00:00 2001 From: Alain Volmat Date: Wed, 7 Jul 2021 10:27:03 +0200 Subject: [PATCH] spi: stm32: Revert "properly handle 0 byte transfer" 0 byte transfer handling is now done within the core in code added by commit b306320322c9 ("spi: Skip zero-length transfers in spi_transfer_one_message()") This reverts commit 2269f5a8b1a7 ("spi: stm32: properly handle 0 byte transfer") Signed-off-by: Alain Volmat Link: https://lore.kernel.org/r/1625646426-5826-5-git-send-email-alain.volmat@foss.st.com Signed-off-by: Mark Brown --- drivers/spi/spi-stm32.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/spi/spi-stm32.c b/drivers/spi/spi-stm32.c index 4dbd5cbe0c11..d37bfead4d8c 100644 --- a/drivers/spi/spi-stm32.c +++ b/drivers/spi/spi-stm32.c @@ -1647,10 +1647,6 @@ static int stm32_spi_transfer_one(struct spi_master *master, struct stm32_spi *spi = spi_master_get_devdata(master); int ret; - /* Don't do anything on 0 bytes transfers */ - if (transfer->len == 0) - return 0; - spi->tx_buf = transfer->tx_buf; spi->rx_buf = transfer->rx_buf; spi->tx_len = spi->tx_buf ? transfer->len : 0;