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f26fdd599 [PATCH] CHECK_IRQ_PER_CPU() to avoid dead code in __do_IRQ() ... Browse Code »

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
Acked-by: Ingo Molnar
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds

Karsten Wiese
2005-09-08 07:57:29 +0800

irq.h 245 Bytes

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#ifndef _ASM_IRQ_H
#define _ASM_IRQ_H

/*
 * IRQ line status macro IRQ_PER_CPU is used
 */
#define ARCH_HAS_IRQ_PER_CPU

#include <asm/arch/irq.h>

extern __inline__ int irq_canonicalize(int irq)
{  
  return irq; 
}

#endif  /* _ASM_IRQ_H */