[PATCH 07/14] x86_64 irq: In __DO_ACTION perform the FINAL action for every entry.
From: Eric W. Biederman
Date: Fri Feb 23 2007 - 06:25:31 EST
If we have an irq that comes from multiple io_apic pins the FINAL action
(which is io_apic_sync or nothing) needs to be called for every entry or
else if the two pins come from different io_apics we may not wait until
after the action happens on the io_apic.
Signed-off-by: Eric W. Biederman <ebiederm@xxxxxxxxxxxx>
---
arch/x86_64/kernel/io_apic.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c
index 74671de..52fc19b 100644
--- a/arch/x86_64/kernel/io_apic.c
+++ b/arch/x86_64/kernel/io_apic.c
@@ -149,11 +149,11 @@ static inline void io_apic_sync(unsigned int apic)
reg = io_apic_read(entry->apic, 0x10 + R + pin*2); \
reg ACTION; \
io_apic_modify(entry->apic, reg); \
+ FINAL; \
if (!entry->next) \
break; \
entry = irq_2_pin + entry->next; \
} \
- FINAL; \
}
union entry_union {
--
1.5.0.g53756
-
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