3.2.46-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Li Fei <fei...@intel.com>

commit f7b0e1055574ce06ab53391263b4e205bf38daf3 upstream.

With the current implementation, kstat_cpu(cpu).irqs_sum is also
increased in case of irq_mis_count increment.

So there is no need to count irq_mis_count in arch_irq_stat,
otherwise irq_mis_count will be counted twice in the sum of
/proc/stat.

Reported-by: Liu Chuansheng <chuansheng....@intel.com>
Signed-off-by: Li Fei <fei...@intel.com>
Acked-by: Liu Chuansheng <chuansheng....@intel.com>
Cc: tomoki.sekiyama...@hitachi.com
Cc: j...@perches.com
Link: 
http://lkml.kernel.org/r/1366980611.32469.7.camel@fli24-HP-Compaq-8100-Elite-CMT-PC
Signed-off-by: Ingo Molnar <mi...@kernel.org>
Signed-off-by: Ben Hutchings <b...@decadent.org.uk>
---
 arch/x86/kernel/irq.c |    4 ----
 1 file changed, 4 deletions(-)

--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -160,10 +160,6 @@ u64 arch_irq_stat_cpu(unsigned int cpu)
 u64 arch_irq_stat(void)
 {
        u64 sum = atomic_read(&irq_err_count);
-
-#ifdef CONFIG_X86_IO_APIC
-       sum += atomic_read(&irq_mis_count);
-#endif
        return sum;
 }
 

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