mxser_rs_break now does all inb, outb, & or | in a single statement. The
code is hard to follow, so make it more readable by doing one-line =
one-statement.
Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
---
drivers/tty/mxser.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c
index e5f8d08de8fd..5789c4343f10 100644
--- a/drivers/tty/mxser.c
+++ b/drivers/tty/mxser.c
@@ -1553,15 +1553,17 @@ static int mxser_rs_break(struct tty_struct *tty, int break_state)
{
struct mxser_port *info = tty->driver_data;
unsigned long flags;
+ u8 lcr;
spin_lock_irqsave(&info->slock, flags);
+ lcr = inb(info->ioaddr + UART_LCR);
if (break_state == -1)
- outb(inb(info->ioaddr + UART_LCR) | UART_LCR_SBC,
- info->ioaddr + UART_LCR);
+ lcr |= UART_LCR_SBC;
else
- outb(inb(info->ioaddr + UART_LCR) & ~UART_LCR_SBC,
- info->ioaddr + UART_LCR);
+ lcr &= ~UART_LCR_SBC;
+ outb(lcr, info->ioaddr + UART_LCR);
spin_unlock_irqrestore(&info->slock, flags);
+
return 0;
}
--
2.32.0
