Commit 272f01bf authored Dec 27, 2011 by Heiko Carstens Committed by Martin Schwidefsky Dec 27, 2011

[S390] irq: fix accounting of external call/emergency signal

Mask the extint_code parameter of the smp external interrupt handler
to get the interruption code. Otherwise emergency call interrupts
erroneously might be accounted as emergency signal interrupts.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

parent 371de6e4

arch/s390/kernel/smp.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -187,7 +187,7 @@ static void do_ext_call_interrupt(unsigned int ext_int_code,
		{
		unsigned long bits;

		if (ext_int_code == 0x1202)
		if ((ext_int_code & 0xffff) == 0x1202)
		kstat_cpu(smp_processor_id()).irqs[EXTINT_EXC]++;
		else
		kstat_cpu(smp_processor_id()).irqs[EXTINT_EMS]++;