From: Lino Sanfilippo <LinoSanfilippo@gmx.de> stable inclusion from stable-v5.10.146 commit 730f78c51bdc148aa2bb477c34dfeec9bca68896 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I6D0VX Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=... -------------------------------- [ Upstream commit 60efd0513916f195dd85bfbf21653f74f9ab019c ] In uart_set_rs485_config() the serial core already assigns the passed serial_rs485 struct to the uart port. So remove the assignment from the drivers rs485_config() function to avoid redundancy. Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Acked-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de> Link: https://lore.kernel.org/r/20220410104642.32195-10-LinoSanfilippo@gmx.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Stable-dep-of: 692a8ebcfc24 ("tty: serial: atmel: Preserve previous USART mode if RS485 disabled") Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com> Reviewed-by: Zheng Zengkai <zhengzengkai@huawei.com> --- drivers/tty/serial/atmel_serial.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c index 602065bfc9bb..e7526060926d 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -298,11 +298,9 @@ static int atmel_config_rs485(struct uart_port *port, /* Resetting serial mode to RS232 (0x0) */ mode &= ~ATMEL_US_USMODE; - port->rs485 = *rs485conf; - if (rs485conf->flags & SER_RS485_ENABLED) { dev_dbg(port->dev, "Setting UART to RS485\n"); - if (port->rs485.flags & SER_RS485_RX_DURING_TX) + if (rs485conf->flags & SER_RS485_RX_DURING_TX) atmel_port->tx_done_mask = ATMEL_US_TXRDY; else atmel_port->tx_done_mask = ATMEL_US_TXEMPTY; -- 2.25.1