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>
diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h
index 0efdb1d..11d1fc3a 100644
--- a/arch/powerpc/include/asm/machdep.h
+++ b/arch/powerpc/include/asm/machdep.h
@@ -110,6 +110,10 @@
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);