diff options
| author | marcel <marcel@FreeBSD.org> | 2009-06-09 18:18:41 +0000 |
|---|---|---|
| committer | marcel <marcel@FreeBSD.org> | 2009-06-09 18:18:41 +0000 |
| commit | 898dda825cfcffcc2b924756406dffce9cf7e252 (patch) | |
| tree | e846e3361c689dff739f93bdcff26f51b315917d /sys/arm/at91/at91.c | |
| parent | 6550c66aa23e544ae0721ff433e77661cc5c4098 (diff) | |
| download | FreeBSD-src-898dda825cfcffcc2b924756406dffce9cf7e252.zip FreeBSD-src-898dda825cfcffcc2b924756406dffce9cf7e252.tar.gz | |
Pass the previously returned IRQ back to arm_get_next_irq() so that
the implementation can guarantee forward progress in the event of
a stuck interrupt or interrupt storm. This is especially critical
for fast interrupt handlers, as they can cause a hard hang in that
case. When first called, arm_get_next_irq() is passed -1.
Obtained from: Juniper Networks, Inc.
Diffstat (limited to 'sys/arm/at91/at91.c')
| -rw-r--r-- | sys/arm/at91/at91.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/sys/arm/at91/at91.c b/sys/arm/at91/at91.c index 222fce0..efc731b 100644 --- a/sys/arm/at91/at91.c +++ b/sys/arm/at91/at91.c @@ -702,9 +702,8 @@ arm_mask_irq(uintptr_t nb) } int -arm_get_next_irq() +arm_get_next_irq(int last __unused) { - int status; int irq; |
