From: Fugang Duan <fugang.duan@nxp.com>
Date: Wed, 17 Jul 2019 13:19:29 +0800
Subject: tty: serial: fsl_lpuart: remove sg_set_buf() for sport->rx_sgl
Git-commit: 638341d5dbd11f057a9b00176ade767b08a9e95f
Patch-mainline: v5.4-rc1
References: jsc#SLE-12251
Since .sg_init_one() already set sg entry page like below code.
sg_init_one()
sg_init_table(sg, 1);
sg_set_buf(sg, buf, buflen);
So it should not set sg entry page again, remove the redundant code.
Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Link: https://lore.kernel.org/r/20190717051930.15514-5-fugang.duan@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
drivers/tty/serial/fsl_lpuart.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index 746681be3760..ba87b58cce4a 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -1102,7 +1102,6 @@ static inline int lpuart_start_rx_dma(struct lpuart_port *sport)
return -ENOMEM;
sg_init_one(&sport->rx_sgl, ring->buf, sport->rx_dma_rng_buf_len);
- sg_set_buf(&sport->rx_sgl, ring->buf, sport->rx_dma_rng_buf_len);
nent = dma_map_sg(sport->port.dev, &sport->rx_sgl, 1, DMA_FROM_DEVICE);
if (!nent) {
--
2.26.2