From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Hurley Subject: [PATCH tty-next 1/3] n_tty: Remove superfluous reader wakeup Date: Tue, 17 Sep 2013 12:53:34 -0400 Message-ID: <1379436816-14740-2-git-send-email-peter@hurleysoftware.com> References: <1379436816-14740-1-git-send-email-peter@hurleysoftware.com> Return-path: In-Reply-To: <1379436816-14740-1-git-send-email-peter@hurleysoftware.com> Sender: linux-kernel-owner@vger.kernel.org To: Greg Kroah-Hartman Cc: Jiri Slaby , linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, Peter Hurley List-Id: linux-serial@vger.kernel.org n_tty's .set_termios method unconditionally performs reader wakeup; remove extra reader wakeup for canonical mode changes. Signed-off-by: Peter Hurley --- drivers/tty/n_tty.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index 01bf5eb..42d7ae7 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -1763,9 +1763,6 @@ static void n_tty_set_termios(struct tty_struct *tty, struct ktermios *old) ldata->lnext = 0; } - if (canon_change && !L_ICANON(tty) && read_cnt(ldata)) - wake_up_interruptible(&tty->read_wait); - ldata->icanon = (L_ICANON(tty) != 0); if (I_ISTRIP(tty) || I_IUCLC(tty) || I_IGNCR(tty) || -- 1.8.1.2