On Fri, Feb 14, 2020 at 10:43:00AM -0500, Sasha Levin wrote:
From: Xiongfeng Wang wangxiongfeng2@huawei.com
[ Upstream commit e83c6587c47caa2278aa3bd603b5a85eddc4cec9 ]
Fix the following warning: drivers/tty/serial/omap-serial.c: In function serial_omap_rlsi: drivers/tty/serial/omap-serial.c:496:16: warning: variable ch set but not used [-Wunused-but-set-variable]
The character read is useless according to the table 23-246 of the omap4 TRM. So we can drop it.
Reported-by: Hulk Robot hulkci@huawei.com Signed-off-by: Xiongfeng Wang wangxiongfeng2@huawei.com Link: https://lore.kernel.org/r/1575617863-32484-1-git-send-email-wangxiongfeng2@h... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org
drivers/tty/serial/omap-serial.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c index 6420ae581a802..5f808d8dfcd5c 100644 --- a/drivers/tty/serial/omap-serial.c +++ b/drivers/tty/serial/omap-serial.c @@ -493,10 +493,13 @@ static unsigned int check_modem_status(struct uart_omap_port *up) static void serial_omap_rlsi(struct uart_omap_port *up, unsigned int lsr) { unsigned int flag;
- unsigned char ch = 0;
- /*
* Read one data character out to avoid stalling the receiver according* to the table 23-246 of the omap4 TRM.*/
ch = serial_in(up, UART_RX);
serial_in(up, UART_RX);up->port.icount.rx++; flag = TTY_NORMAL; -- 2.20.1
Please drop.