From: Alan Cox Date: Mon, 16 Jul 2007 06:41:47 +0000 (-0700) Subject: amiserial: remove incorrect 'no termios change' check X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=db0ef08efa1bb94ba9a9e44c255d9058df5fde8d;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git amiserial: remove incorrect 'no termios change' check Lots of serial drivers check and optimise for setting the termios values to the ones they were before. This is pointless and the check is wrong anyway. Remove the checks on the serial drivers. If we ever do need such a check put it back in the tty layer instead _once_! Signed-off-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/drivers/char/amiserial.c b/drivers/char/amiserial.c index 4eaceabd8cea..7b02bf1289a2 100644 --- a/drivers/char/amiserial.c +++ b/drivers/char/amiserial.c @@ -738,6 +738,7 @@ static void change_speed(struct async_struct *info, } /* If the quotient is zero refuse the change */ if (!quot && old_termios) { + /* FIXME: Will need updating for new tty in the end */ info->tty->termios->c_cflag &= ~CBAUD; info->tty->termios->c_cflag |= (old_termios->c_cflag & CBAUD); baud = tty_get_baud_rate(info->tty); @@ -783,7 +784,6 @@ static void change_speed(struct async_struct *info, /* * Set up parity check flag */ -#define RELEVANT_IFLAG(iflag) (iflag & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK)) info->read_status_mask = UART_LSR_OE | UART_LSR_DR; if (I_INPCK(info->tty)) @@ -1367,11 +1367,6 @@ static void rs_set_termios(struct tty_struct *tty, struct ktermios *old_termios) unsigned long flags; unsigned int cflag = tty->termios->c_cflag; - if ( (cflag == old_termios->c_cflag) - && ( RELEVANT_IFLAG(tty->termios->c_iflag) - == RELEVANT_IFLAG(old_termios->c_iflag))) - return; - change_speed(info, old_termios); /* Handle transition to B0 status */