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Subject[PATCH] serial: remove termios checks from various old char serial drivers
Signed-off-by: Alan Cox <alan@redhat.com>

diff -u --new-file --exclude-from /usr/src/exclude --recursive linux.vanilla-2.6.22-rc6-mm1/drivers/char/cyclades.c linux-2.6.22-rc6-mm1/drivers/char/cyclades.c
--- linux.vanilla-2.6.22-rc6-mm1/drivers/char/cyclades.c 2007-07-02 20:50:11.000000000 +0100
+++ linux-2.6.22-rc6-mm1/drivers/char/cyclades.c 2007-07-02 21:05:53.000000000 +0100
@@ -4164,10 +4164,6 @@
printk(KERN_DEBUG "cyc:cy_set_termios ttyC%d\n", info->line);
#endif

- if (tty->termios->c_cflag == old_termios->c_cflag &&
- (tty->termios->c_iflag & (IXON | IXANY)) ==
- (old_termios->c_iflag & (IXON | IXANY)))
- return;
set_line_char(info);

if ((old_termios->c_cflag & CRTSCTS) &&
diff -u --new-file --exclude-from /usr/src/exclude --recursive linux.vanilla-2.6.22-rc6-mm1/drivers/char/esp.c linux-2.6.22-rc6-mm1/drivers/char/esp.c
--- linux.vanilla-2.6.22-rc6-mm1/drivers/char/esp.c 2007-07-02 20:47:23.000000000 +0100
+++ linux-2.6.22-rc6-mm1/drivers/char/esp.c 2007-07-02 21:05:53.000000000 +0100
@@ -1121,8 +1121,6 @@
/*
* Set up parity check flag
*/
-#define RELEVANT_IFLAG(iflag) (iflag & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK))
-
info->read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;
if (I_INPCK(info->tty))
info->read_status_mask |= UART_LSR_FE | UART_LSR_PE;
@@ -1920,11 +1918,6 @@
struct esp_struct *info = (struct esp_struct *)tty->driver_data;
unsigned long flags;

- 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);

spin_lock_irqsave(&info->lock, flags);
diff -u --new-file --exclude-from /usr/src/exclude --recursive linux.vanilla-2.6.22-rc6-mm1/drivers/char/istallion.c linux-2.6.22-rc6-mm1/drivers/char/istallion.c
--- linux.vanilla-2.6.22-rc6-mm1/drivers/char/istallion.c 2007-07-02 20:50:11.000000000 +0100
+++ linux-2.6.22-rc6-mm1/drivers/char/istallion.c 2007-07-02 21:06:25.000000000 +0100
@@ -1753,9 +1753,6 @@
return;

tiosp = tty->termios;
- if ((tiosp->c_cflag == old->c_cflag) &&
- (tiosp->c_iflag == old->c_iflag))
- return;

stli_mkasyport(portp, &aport, tiosp);
stli_cmdwait(brdp, portp, A_SETPORT, &aport, sizeof(asyport_t), 0);
diff -u --new-file --exclude-from /usr/src/exclude --recursive linux.vanilla-2.6.22-rc6-mm1/drivers/char/mxser.c linux-2.6.22-rc6-mm1/drivers/char/mxser.c
--- linux.vanilla-2.6.22-rc6-mm1/drivers/char/mxser.c 2007-07-02 20:48:49.000000000 +0100
+++ linux-2.6.22-rc6-mm1/drivers/char/mxser.c 2007-07-02 21:06:25.000000000 +0100
@@ -90,8 +90,6 @@
#define UART_MCR_AFE 0x20
#define UART_LSR_SPECIAL 0x1E

-#define RELEVANT_IFLAG(iflag) (iflag & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK|\
- IXON|IXOFF))

#define IRQ_T(info) ((info->flags & ASYNC_SHARE_IRQ) ? IRQF_SHARED : IRQF_DISABLED)

@@ -1729,16 +1727,12 @@
struct mxser_struct *info = tty->driver_data;
unsigned long flags;

- if ((tty->termios->c_cflag != old_termios->c_cflag) ||
- (RELEVANT_IFLAG(tty->termios->c_iflag) != RELEVANT_IFLAG(old_termios->c_iflag))) {
+ mxser_change_speed(info, old_termios);

- mxser_change_speed(info, old_termios);
-
- if ((old_termios->c_cflag & CRTSCTS) &&
- !(tty->termios->c_cflag & CRTSCTS)) {
- tty->hw_stopped = 0;
- mxser_start(tty);
- }
+ if ((old_termios->c_cflag & CRTSCTS) &&
+ !(tty->termios->c_cflag & CRTSCTS)) {
+ tty->hw_stopped = 0;
+ mxser_start(tty);
}

/* Handle sw stopped */
diff -u --new-file --exclude-from /usr/src/exclude --recursive linux.vanilla-2.6.22-rc6-mm1/drivers/char/mxser_new.c linux-2.6.22-rc6-mm1/drivers/char/mxser_new.c
--- linux.vanilla-2.6.22-rc6-mm1/drivers/char/mxser_new.c 2007-07-02 20:50:11.000000000 +0100
+++ linux-2.6.22-rc6-mm1/drivers/char/mxser_new.c 2007-07-02 21:06:25.000000000 +0100
@@ -72,8 +72,6 @@
#define UART_MCR_AFE 0x20
#define UART_LSR_SPECIAL 0x1E

-#define RELEVANT_IFLAG(iflag) (iflag & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK|\
- IXON|IXOFF))

#define C168_ASIC_ID 1
#define C104_ASIC_ID 2
@@ -1990,18 +1988,14 @@
struct mxser_port *info = tty->driver_data;
unsigned long flags;

- if ((tty->termios->c_cflag != old_termios->c_cflag) ||
- (RELEVANT_IFLAG(tty->termios->c_iflag) != RELEVANT_IFLAG(old_termios->c_iflag))) {
-
- spin_lock_irqsave(&info->slock, flags);
- mxser_change_speed(info, old_termios);
- spin_unlock_irqrestore(&info->slock, flags);
+ spin_lock_irqsave(&info->slock, flags);
+ mxser_change_speed(info, old_termios);
+ spin_unlock_irqrestore(&info->slock, flags);

- if ((old_termios->c_cflag & CRTSCTS) &&
- !(tty->termios->c_cflag & CRTSCTS)) {
- tty->hw_stopped = 0;
- mxser_start(tty);
- }
+ if ((old_termios->c_cflag & CRTSCTS) &&
+ !(tty->termios->c_cflag & CRTSCTS)) {
+ tty->hw_stopped = 0;
+ mxser_start(tty);
}

/* Handle sw stopped */
diff -u --new-file --exclude-from /usr/src/exclude --recursive linux.vanilla-2.6.22-rc6-mm1/drivers/char/nozomi.c linux-2.6.22-rc6-mm1/drivers/char/nozomi.c
--- linux.vanilla-2.6.22-rc6-mm1/drivers/char/nozomi.c 2007-07-02 20:50:11.000000000 +0100
+++ linux-2.6.22-rc6-mm1/drivers/char/nozomi.c 2007-07-02 21:06:25.000000000 +0100
@@ -192,8 +192,6 @@
}\
} while(0)

-#define RELEVANT_IFLAG(iflag) ((iflag) & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK))
-
/* Defines */
#define NOZOMI_NAME "nozomi"
#define NOZOMI_NAME_TTY "nozomi_tty"
@@ -1869,15 +1867,6 @@

cflag = tty->termios->c_cflag;

- if (old_termios) {
- if ((cflag == old_termios->c_cflag) &&
- (RELEVANT_IFLAG(tty->termios->c_iflag) ==
- RELEVANT_IFLAG(old_termios->c_iflag))) {
- D1(" - nothing to change...");
- goto exit_termios;
- }
- }
-
/* get the byte size */
switch (cflag & CSIZE) {
case CS5:
-
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