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Commit b273ed26 authored by Edson Seabra's avatar Edson Seabra Committed by Paul Mackerras
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[PATCH] powerpc: CPM2 interrupt handler failure after 100,000 interrupts 



The CPM2 interrupt handler does not return success to the IRQ subsystem, which
causes it to kill the IRQ line after 100,000 interrupts.

Signed-off-by: default avatarEdson Seabra <Edson.Seabra@cyclades.com>
Signed-off-by: default avatarMarcelo Tosatti <marcelo.tosatti@cyclades.com>
Signed-off-by: default avatarKumar Gala <galak@kernel.crashing.org>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 3eb6f26b

arch/ppc/platforms/85xx/mpc85xx_cds_common.c

+2 −1
Original line number Diff line number Diff line
@@ -130,10 +130,11 @@ mpc85xx_cds_show_cpuinfo(struct seq_file *m) 
}



#ifdef CONFIG_CPM2

static void cpm2_cascade(int irq, void *dev_id, struct pt_regs *regs)

static irqreturn_t cpm2_cascade(int irq, void *dev_id, struct pt_regs *regs)

{

	while((irq = cpm2_get_irq(regs)) >= 0)

		__do_IRQ(irq, regs);

	return IRQ_HANDLED;

}



static struct irqaction cpm2_irqaction = {