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Subject[PATCH 7/13] istallion: remove cli()/sti() in drivers/char/istallion.c
Date
Signed-off-by: James Nelson <james4765@gmail.com>

diff -urN --exclude='*~' linux-2.6.11-rc1-mm1-original/drivers/char/istallion.c linux-2.6.11-rc1-mm1/drivers/char/istallion.c
--- linux-2.6.11-rc1-mm1-original/drivers/char/istallion.c 2004-12-24 16:35:00.000000000 -0500
+++ linux-2.6.11-rc1-mm1/drivers/char/istallion.c 2005-01-16 07:32:19.327552657 -0500
@@ -807,10 +807,9 @@
printk("init_module()\n");
#endif

- save_flags(flags);
- cli();
+ local_irq_save(flags);
stli_init();
- restore_flags(flags);
+ local_irq_restore(flags);

return(0);
}
@@ -831,8 +830,7 @@
printk(KERN_INFO "Unloading %s: version %s\n", stli_drvtitle,
stli_drvversion);

- save_flags(flags);
- cli();
+ local_irq_save(flags);

/*
* Free up all allocated resources used by the ports. This includes
@@ -847,8 +845,7 @@
if (i) {
printk("STALLION: failed to un-register tty driver, "
"errno=%d\n", -i);
- restore_flags(flags);
- return;
+ goto out;
}
put_tty_driver(stli_serial);
for (i = 0; i < 4; i++) {
@@ -884,7 +881,7 @@
stli_brds[i] = (stlibrd_t *) NULL;
}

- restore_flags(flags);
+out: local_irq_restore(flags);
}

module_init(istallion_module_init);
@@ -1128,18 +1125,14 @@
if (portp == (stliport_t *) NULL)
return;

- save_flags(flags);
- cli();
- if (tty_hung_up_p(filp)) {
- restore_flags(flags);
- return;
- }
+ local_irq_save(flags);
+ if (tty_hung_up_p(filp))
+ goto out;
+
if ((tty->count == 1) && (portp->refcount != 1))
portp->refcount = 1;
- if (portp->refcount-- > 1) {
- restore_flags(flags);
- return;
- }
+ if (portp->refcount-- > 1)
+ goto out;

portp->flags |= ASYNC_CLOSING;

@@ -1185,7 +1178,7 @@

portp->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
wake_up_interruptible(&portp->close_wait);
- restore_flags(flags);
+out: local_irq_restore(flags);
}

/*****************************************************************************/
@@ -1266,8 +1259,7 @@
/*
* Send a message to the slave to open this port.
*/
- save_flags(flags);
- cli();
+ local_irq_save(flags);

/*
* Slave is already closing this port. This can happen if a hangup
@@ -1277,7 +1269,7 @@
*/
while (test_bit(ST_CLOSING, &portp->state)) {
if (signal_pending(current)) {
- restore_flags(flags);
+ local_irq_restore(flags);
return(-ERESTARTSYS);
}
interruptible_sleep_on(&portp->raw_wait);
@@ -1299,7 +1291,7 @@
EBRDDISABLE(brdp);

if (wait == 0) {
- restore_flags(flags);
+ local_irq_restore(flags);
return(0);
}

@@ -1316,7 +1308,7 @@
}
interruptible_sleep_on(&portp->raw_wait);
}
- restore_flags(flags);
+ local_irq_restore(flags);

if ((rc == 0) && (portp->rc != 0))
rc = -EIO;
@@ -1344,8 +1336,7 @@
(int) brdp, (int) portp, (int) arg, wait);
#endif

- save_flags(flags);
- cli();
+ local_irq_save(flags);

/*
* Slave is already closing this port. This can happen if a hangup
@@ -1354,7 +1345,7 @@
if (wait) {
while (test_bit(ST_CLOSING, &portp->state)) {
if (signal_pending(current)) {
- restore_flags(flags);
+ local_irq_restore(flags);
return(-ERESTARTSYS);
}
interruptible_sleep_on(&portp->raw_wait);
@@ -1376,7 +1367,7 @@

set_bit(ST_CLOSING, &portp->state);
if (wait == 0) {
- restore_flags(flags);
+ local_irq_restore(flags);
return(0);
}

@@ -1392,7 +1383,7 @@
}
interruptible_sleep_on(&portp->raw_wait);
}
- restore_flags(flags);
+ local_irq_restore(flags);

if ((rc == 0) && (portp->rc != 0))
rc = -EIO;
@@ -1418,11 +1409,10 @@
(int) arg, size, copyback);
#endif

- save_flags(flags);
- cli();
+ local_irq_save(flags);
while (test_bit(ST_CMDING, &portp->state)) {
if (signal_pending(current)) {
- restore_flags(flags);
+ local_irq_restore(flags);
return(-ERESTARTSYS);
}
interruptible_sleep_on(&portp->raw_wait);
@@ -1432,12 +1422,12 @@

while (test_bit(ST_CMDING, &portp->state)) {
if (signal_pending(current)) {
- restore_flags(flags);
+ local_irq_restore(flags);
return(-ERESTARTSYS);
}
interruptible_sleep_on(&portp->raw_wait);
}
- restore_flags(flags);
+ local_irq_restore(flags);

if (portp->rc != 0)
return(-EIO);
@@ -1497,8 +1487,7 @@
if (portp->tty->termios->c_cflag & CLOCAL)
doclocal++;

- save_flags(flags);
- cli();
+ local_irq_save(flags);
portp->openwaitcnt++;
if (! tty_hung_up_p(filp))
portp->refcount--;
@@ -1530,7 +1519,7 @@
if (! tty_hung_up_p(filp))
portp->refcount++;
portp->openwaitcnt--;
- restore_flags(flags);
+ local_irq_restore(flags);

return(rc);
}
@@ -1577,8 +1566,7 @@
/*
* All data is now local, shove as much as possible into shared memory.
*/
- save_flags(flags);
- cli();
+ local_irq_save(flags);
EBRDENABLE(brdp);
ap = (volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr);
head = (unsigned int) ap->txq.head;
@@ -1624,7 +1612,7 @@
set_bit(ST_TXBUSY, &portp->state);
EBRDDISABLE(brdp);

- restore_flags(flags);
+ local_irq_restore(flags);

return(count);
}
@@ -1706,8 +1694,7 @@
if (brdp == (stlibrd_t *) NULL)
return;

- save_flags(flags);
- cli();
+ local_irq_save(flags);
EBRDENABLE(brdp);

ap = (volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr);
@@ -1756,7 +1743,7 @@
set_bit(ST_TXBUSY, &portp->state);

EBRDDISABLE(brdp);
- restore_flags(flags);
+ local_irq_restore(flags);
}

/*****************************************************************************/
@@ -1791,8 +1778,7 @@
if (brdp == (stlibrd_t *) NULL)
return(0);

- save_flags(flags);
- cli();
+ local_irq_save(flags);
EBRDENABLE(brdp);
rp = &((volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr))->txq;
head = (unsigned int) rp->head;
@@ -1802,7 +1788,7 @@
len = (head >= tail) ? (portp->txsize - (head - tail)) : (tail - head);
len--;
EBRDDISABLE(brdp);
- restore_flags(flags);
+ local_irq_restore(flags);

if (tty == stli_txcooktty) {
stli_txcookrealsize = len;
@@ -1846,8 +1832,7 @@
if (brdp == (stlibrd_t *) NULL)
return(0);

- save_flags(flags);
- cli();
+ local_irq_save(flags);
EBRDENABLE(brdp);
rp = &((volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr))->txq;
head = (unsigned int) rp->head;
@@ -1858,7 +1843,7 @@
if ((len == 0) && test_bit(ST_TXBUSY, &portp->state))
len = 1;
EBRDDISABLE(brdp);
- restore_flags(flags);
+ local_irq_restore(flags);

return(len);
}
@@ -2303,8 +2288,7 @@

portp->flags &= ~ASYNC_INITIALIZED;

- save_flags(flags);
- cli();
+ local_irq_save(flags);
if (! test_bit(ST_CLOSING, &portp->state))
stli_rawclose(brdp, portp, 0, 0);
if (tty->termios->c_cflag & HUPCL) {
@@ -2318,7 +2302,7 @@
&portp->asig, sizeof(asysigs_t), 0);
}
}
- restore_flags(flags);
+ local_irq_restore(flags);

clear_bit(ST_TXBUSY, &portp->state);
clear_bit(ST_RXSTOP, &portp->state);
@@ -2359,8 +2343,7 @@
if (brdp == (stlibrd_t *) NULL)
return;

- save_flags(flags);
- cli();
+ local_irq_save(flags);
if (tty == stli_txcooktty) {
stli_txcooktty = (struct tty_struct *) NULL;
stli_txcooksize = 0;
@@ -2377,7 +2360,7 @@
stli_sendcmd(brdp, portp, A_FLUSH, &ftype,
sizeof(unsigned long), 0);
}
- restore_flags(flags);
+ local_irq_restore(flags);

wake_up_interruptible(&tty->write_wait);
if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
@@ -2653,14 +2636,12 @@
(int) arg, size, copyback);
#endif

- save_flags(flags);
- cli();
+ local_irq_save(flags);

if (test_bit(ST_CMDING, &portp->state)) {
printk(KERN_ERR "STALLION: command already busy, cmd=%x!\n",
(int) cmd);
- restore_flags(flags);
- return;
+ goto out;
}

EBRDENABLE(brdp);
@@ -2680,7 +2661,7 @@
*bits |= portp->portbit;
set_bit(ST_CMDING, &portp->state);
EBRDDISABLE(brdp);
- restore_flags(flags);
+out: local_irq_restore(flags);
}

/*****************************************************************************/
@@ -4195,8 +4176,7 @@

rc = 0;

- save_flags(flags);
- cli();
+ local_irq_save(flags);
EBRDENABLE(brdp);
hdrp = (volatile cdkhdr_t *) EBRDGETMEMPTR(brdp, CDK_CDKADDR);
nrdevs = hdrp->nrdevs;
@@ -4273,7 +4253,7 @@

stli_donestartup:
EBRDDISABLE(brdp);
- restore_flags(flags);
+ local_irq_restore(flags);

if (rc == 0)
brdp->state |= BST_STARTED;
@@ -4775,8 +4755,7 @@

size = MIN(count, (brdp->memsize - fp->f_pos));

- save_flags(flags);
- cli();
+ local_irq_save(flags);
EBRDENABLE(brdp);
while (size > 0) {
memptr = (void *) EBRDGETMEMPTR(brdp, fp->f_pos);
@@ -4791,7 +4770,7 @@
}
out:
EBRDDISABLE(brdp);
- restore_flags(flags);
+ local_irq_restore(flags);

return(count);
}
@@ -4831,8 +4810,7 @@
chbuf = (char __user *) buf;
size = MIN(count, (brdp->memsize - fp->f_pos));

- save_flags(flags);
- cli();
+ local_irq_save(flags);
EBRDENABLE(brdp);
while (size > 0) {
memptr = (void *) EBRDGETMEMPTR(brdp, fp->f_pos);
@@ -4847,7 +4825,7 @@
}
out:
EBRDDISABLE(brdp);
- restore_flags(flags);
+ local_irq_restore(flags);

return(count);
}
@@ -4950,8 +4928,7 @@
stli_comstats.state = portp->state;
stli_comstats.flags = portp->flags;

- save_flags(flags);
- cli();
+ local_irq_save(flags);
if (portp->tty != (struct tty_struct *) NULL) {
if (portp->tty->driver_data == portp) {
stli_comstats.ttystate = portp->tty->flags;
@@ -4964,7 +4941,7 @@
}
}
}
- restore_flags(flags);
+ local_irq_restore(flags);

stli_comstats.txtotal = stli_cdkstats.txchars;
stli_comstats.rxtotal = stli_cdkstats.rxchars + stli_cdkstats.ringover;
-
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