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powerpc/irq: Move get_irq() comment into header

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The guts of do_IRQ() isn't really the right place to be documenting
the ppc_md.get_irq() interface. So move the comment into machdep.h

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Michael Ellerman 2009-04-22 15:31:38 +00:00 committed by Benjamin Herrenschmidt
parent d7cb10d6d2
commit 9b647a30cb
2 changed files with 4 additions and 7 deletions
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4
arch/powerpc/include/asm/machdep.h
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@ -110,6 +110,10 @@ struct machdep_calls {
void (*show_percpuinfo)(struct seq_file *m, int i);
void (*init_IRQ)(void);
/* Return an irq, or NO_IRQ to indicate there are none pending.
* If for some reason there is no irq, but the interrupt
* shouldn't be counted as spurious, return NO_IRQ_IGNORE. */
unsigned int (*get_irq)(void);
#ifdef CONFIG_KEXEC
void (*kexec_cpu_down)(int crash_shutdown, int secondary);

7
arch/powerpc/kernel/irq.c
View file

@ -326,13 +326,6 @@ void do_IRQ(struct pt_regs *regs)
check_stack_overflow();
/*
* Every platform is required to implement ppc_md.get_irq.
* This function will either return an irq number or NO_IRQ to
* indicate there are no more pending.
* The value NO_IRQ_IGNORE is for buggy hardware and means that this
* IRQ has already been handled. -- Tom
*/
irq = ppc_md.get_irq();
if (irq != NO_IRQ && irq != NO_IRQ_IGNORE)