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| author | Yong Zhang <yong.zhang0@gmail.com> | 2011-09-22 16:58:46 +0800 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2012-03-25 00:29:52 +0100 |
| commit | c0b79a90b1556a7e51d7a49a655eb60306f6258d (patch) | |
| tree | e6f8427119e3e4c4aada70cfb04c6c430dcc7f84 /arch/um/drivers/line.c | |
| parent | c16fa4f2ad19908a47c63d8fa436a1178438c7e7 (diff) | |
| download | lwn-c0b79a90b1556a7e51d7a49a655eb60306f6258d.tar.gz lwn-c0b79a90b1556a7e51d7a49a655eb60306f6258d.zip | |
um: irq: Remove IRQF_DISABLED
Since commit [e58aa3d2: genirq: Run irq handlers with interrupts disabled],
We run all interrupt handlers with interrupts disabled
and we even check and yell when an interrupt handler
returns with interrupts enabled (see commit [b738a50a:
genirq: Warn when handler enables interrupts]).
So now this flag is a NOOP and can be removed.
Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'arch/um/drivers/line.c')
| -rw-r--r-- | arch/um/drivers/line.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c index c1cf2206b84b..ac9bcfbbeee1 100644 --- a/arch/um/drivers/line.c +++ b/arch/um/drivers/line.c @@ -347,8 +347,8 @@ static irqreturn_t line_write_interrupt(int irq, void *data) int err; /* - * Interrupts are disabled here because we registered the interrupt with - * IRQF_DISABLED (see line_setup_irq). + * Interrupts are disabled here because genirq keep irqs disabled when + * calling the action handler. */ spin_lock(&line->lock); @@ -371,7 +371,7 @@ static irqreturn_t line_write_interrupt(int irq, void *data) int line_setup_irq(int fd, int input, int output, struct line *line, void *data) { const struct line_driver *driver = line->driver; - int err = 0, flags = IRQF_DISABLED | IRQF_SHARED | IRQF_SAMPLE_RANDOM; + int err = 0, flags = IRQF_SHARED | IRQF_SAMPLE_RANDOM; if (input) err = um_request_irq(driver->read_irq, fd, IRQ_READ, @@ -807,7 +807,7 @@ void register_winch_irq(int fd, int tty_fd, int pid, struct tty_struct *tty, .stack = stack }); if (um_request_irq(WINCH_IRQ, fd, IRQ_READ, winch_interrupt, - IRQF_DISABLED | IRQF_SHARED | IRQF_SAMPLE_RANDOM, + IRQF_SHARED | IRQF_SAMPLE_RANDOM, "winch", winch) < 0) { printk(KERN_ERR "register_winch_irq - failed to register " "IRQ\n"); |