The patch titled
Char: mxser_new, revert spin_lock changes
has been added to the -mm tree. Its filename is
char-mxser_new-revert-spin_lock-changes.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: Char: mxser_new, revert spin_lock changes
From: Jiri Slaby <jirislaby@xxxxxxxxx>
Some spinlock changes were introduced in 1.9.1 original moxa driver. Revert
them, since they cause machine not responding.
Signed-off-by: Jiri Slaby <jirislaby@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/char/mxser_new.c | 12 ------------
1 files changed, 12 deletions(-)
diff -puN drivers/char/mxser_new.c~char-mxser_new-revert-spin_lock-changes drivers/char/mxser_new.c
--- a/drivers/char/mxser_new.c~char-mxser_new-revert-spin_lock-changes
+++ a/drivers/char/mxser_new.c
@@ -1687,22 +1687,12 @@ static void mxser_startrx(struct tty_str
*/
static void mxser_throttle(struct tty_struct *tty)
{
- struct mxser_port *info = tty->driver_data;
- unsigned long flags;
-
- spin_lock_irqsave(&info->slock, flags);
mxser_stoprx(tty);
- spin_unlock_irqrestore(&info->slock, flags);
}
static void mxser_unthrottle(struct tty_struct *tty)
{
- struct mxser_port *info = tty->driver_data;
- unsigned long flags;
-
- spin_lock_irqsave(&info->slock, flags);
mxser_startrx(tty);
- spin_unlock_irqrestore(&info->slock, flags);
}
static void mxser_set_termios(struct tty_struct *tty, struct termios *old_termios)
@@ -1930,7 +1920,6 @@ static irqreturn_t mxser_interrupt(int i
}
/* above add by Victor Yu. 09-13-2002 */
- spin_lock(&port->slock);
/* following add by Victor Yu. 09-02-2002 */
status = inb(port->ioaddr + UART_LSR);
@@ -1981,7 +1970,6 @@ static irqreturn_t mxser_interrupt(int i
if (status & UART_LSR_THRE)
mxser_transmit_chars(port);
}
- spin_unlock(&port->slock);
} while (int_cnt++ < MXSER_ISR_PASS_LIMIT);
}
if (pass_counter++ > MXSER_ISR_PASS_LIMIT)
_
Patches currently in -mm which might be from jirislaby@xxxxxxxxx are
origin.patch
git-watchdog.patch
char-kill-unneeded-memsets.patch
char-serial167-remove-useless-tty-check.patch
pci-mxser-pci-refcounts.patch
mxser-make-an-experimental-clone.patch
char-mxser_new-correct-include-file.patch
char-mxser_new-upgrade-to-191.patch
char-mxser_new-rework-to-allow-dynamic-structs.patch
char-mxser_new-use-__devinit-macros.patch
char-mxser_new-pci_request_region-for-pci-regions.patch
char-mxser_new-check-request_region-retvals.patch
char-mxser_new-kill-unneeded-memsets.patch
char-mxser_new-revert-spin_lock-changes.patch
char-mxser_new-remove-request-for-testers-line.patch
char-mxser_new-debug-printk-dependent-on-debug.patch
char-mxser_new-alter-license-terms.patch
char-mxser_new-code-upside-down.patch
char-mxser_new-cmspar-is-defined.patch
hisax-niccy-cleanup.patch
-
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