diff options
| author | Michael Ellerman <michael@ellerman.id.au> | 2009-04-22 15:31:38 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-05-21 15:43:59 +1000 |
| commit | 9b647a30cbc228259555d6b0b6bc7d9ec798f907 (patch) | |
| tree | 6889e53ac5acbf1d0c6b54d5f7c9fbf4a8602081 /arch/powerpc | |
| parent | d7cb10d6d23f451eec3d1f0f4e4e8862333fa152 (diff) | |
powerpc/irq: Move get_irq() comment into header
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>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/include/asm/machdep.h | 4 | ||||
| -rw-r--r-- | arch/powerpc/kernel/irq.c | 7 |
2 files changed, 4 insertions, 7 deletions
diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h index 0efdb1dfdc5..11d1fc3a896 100644 --- a/arch/powerpc/include/asm/machdep.h +++ b/arch/powerpc/include/asm/machdep.h @@ -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); diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index 463b6ab9d6b..a5fe12aa937 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -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) |