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authorKarsten Wiese <annabellesgarden@yahoo.de>2005-09-06 15:17:25 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-07 16:57:29 -0700
commitf26fdd59929e1144c6caf72adcaf4561d6e682a4 (patch)
tree85081e47a7c5943ac1d262e806e4138e14360ecc /include/asm-ppc64
parentf8eeaaf4180334a8e5c3582fe62a5f8176a8c124 (diff)
[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 'include/asm-ppc64')
-rw-r--r--include/asm-ppc64/irq.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/asm-ppc64/irq.h b/include/asm-ppc64/irq.h
index 570678b1da95..99782afb4cde 100644
--- a/include/asm-ppc64/irq.h
+++ b/include/asm-ppc64/irq.h
@@ -33,6 +33,11 @@
#define IRQ_POLARITY_POSITIVE 0x2 /* high level or low->high edge */
#define IRQ_POLARITY_NEGATIVE 0x0 /* low level or high->low edge */
+/*
+ * IRQ line status macro IRQ_PER_CPU is used
+ */
+#define ARCH_HAS_IRQ_PER_CPU
+
#define get_irq_desc(irq) (&irq_desc[(irq)])
/* Define a way to iterate across irqs. */