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authorKarsten Wiese <annabellesgarden@yahoo.de>2005-09-07 00:17:25 +0200
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-08 01:57:29 +0200
commitf26fdd59929e1144c6caf72adcaf4561d6e682a4 (patch)
tree85081e47a7c5943ac1d262e806e4138e14360ecc /kernel
parent[PATCH] Make the bzImage format self-terminating (diff)
downloadlinux-f26fdd59929e1144c6caf72adcaf4561d6e682a4.tar.xz
linux-f26fdd59929e1144c6caf72adcaf4561d6e682a4.zip
[PATCH] CHECK_IRQ_PER_CPU() to avoid dead code in __do_IRQ()
IRQ_PER_CPU is not used by all architectures. This patch introduces the macros ARCH_HAS_IRQ_PER_CPU and CHECK_IRQ_PER_CPU() to avoid the generation of dead code in __do_IRQ(). ARCH_HAS_IRQ_PER_CPU is defined by architectures using IRQ_PER_CPU in their include/asm_ARCH/irq.h file. Through grepping the tree I found the following architectures currently use IRQ_PER_CPU: cris, ia64, ppc, ppc64 and parisc. Signed-off-by: Karsten Wiese <annabellesgarden@yahoo.de> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/irq/handle.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index c29f83c16497..3ff7b925c387 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -111,7 +111,7 @@ fastcall unsigned int __do_IRQ(unsigned int irq, struct pt_regs *regs)
unsigned int status;
kstat_this_cpu.irqs[irq]++;
- if (desc->status & IRQ_PER_CPU) {
+ if (CHECK_IRQ_PER_CPU(desc->status)) {
irqreturn_t action_ret;
/*