From 638341d5dbd11f057a9b00176ade767b08a9e95f Mon Sep 17 00:00:00 2001 From: Fugang Duan Date: Wed, 17 Jul 2019 13:19:29 +0800 Subject: [PATCH] tty: serial: fsl_lpuart: remove sg_set_buf() for sport->rx_sgl 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 Link: https://lore.kernel.org/r/20190717051930.15514-5-fugang.duan@nxp.com Signed-off-by: Greg Kroah-Hartman --- 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 746681b..ba87b58 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) { -- 2.7.4