iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ia64: iosapic: Remove redundant mask from ack()

Browse Source 
The core code calls mask_ack() which calls irq_ack() and irq_mask()
for the case where an interrupt is disabled and marked pending. That
seems to be a leftover from the old __do_IRQ() mode.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2011-03-25 20:25:06 +01:00
parent a2178334e9
commit 459960d831
1 changed files with 0 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
arch/ia64/kernel/iosapic.c
View File

@ -450,18 +450,9 @@ static void
iosapic_ack_edge_irq (struct irq_data *data)
{
unsigned int irq = data->irq;
struct irq_desc *idesc = irq_desc + irq;
irq_complete_move(irq);
move_native_irq(irq);
/*
* Once we have recorded IRQ_PENDING already, we can mask the
* interrupt for real. This prevents IRQ storms from unhandled
* devices.
*/
if ((idesc->status & (IRQ_PENDING|IRQ_DISABLED)) ==
(IRQ_PENDING|IRQ_DISABLED))
mask_irq(data);
}
#define iosapic_enable_edge_irq unmask_irq