linux-kernel - [PATCH] 68360serial, remove broken optimisation

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Message-ID: <20070703153107.25cb34ae@the-village.bc.nu>
Date:	Tue, 3 Jul 2007 15:31:07 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	akpm@...l.org, linux-serial@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] 68360serial, remove broken optimisation

Remove the broken 'no termios change' optimisation for this driver.

Signed-off-by: Alan Cox <alan@...hat.com>

diff -u --new-file --exclude-from /usr/src/exclude --recursive linux.vanilla-2.6.22-rc6-mm1/drivers/serial/68360serial.c linux-2.6.22-rc6-mm1/drivers/serial/68360serial.c
--- linux.vanilla-2.6.22-rc6-mm1/drivers/serial/68360serial.c	2007-07-02 20:47:31.000000000 +0100
+++ linux-2.6.22-rc6-mm1/drivers/serial/68360serial.c	2007-07-02 21:11:07.000000000 +0100
@@ -934,8 +934,6 @@
 	/*
 	 * Set up parity check flag
 	 */
-#define RELEVANT_IFLAG(iflag) (iflag & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK))
-
 	info->read_status_mask = (BD_SC_EMPTY | BD_SC_OV);
 	if (I_INPCK(info->tty))
 		info->read_status_mask |= BD_SC_FR | BD_SC_PR;
@@ -1527,11 +1525,6 @@
 {
 	ser_info_t *info = (ser_info_t *)tty->driver_data;
 
-	if (   (tty->termios->c_cflag == old_termios->c_cflag)
-	    && (   RELEVANT_IFLAG(tty->termios->c_iflag) 
-		== RELEVANT_IFLAG(old_termios->c_iflag)))
-	  return;
-
 	change_speed(info);
 
 #ifdef modem_control
-
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