From: Alain Volmat <alain.volmat@foss.st.com>
Date: Wed, 7 Jul 2021 08:27:03 +0000 (+0200)
Subject: spi: stm32: Revert "properly handle 0 byte transfer"
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=70526e0b7601792bf546044fff92c368112f1d3f;p=linux.git
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 <alain.volmat@foss.st.com>
Link: https://lore.kernel.org/r/1625646426-5826-5-git-send-email-alain.volmat@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
---
diff --git a/drivers/spi/spi-stm32.c b/drivers/spi/spi-stm32.c
index 4dbd5cbe0c117..d37bfead4d8cd 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;