From: Zhen Lei <[email protected]>
The type of member ->irqs_sum is unsigned long, but kstat_cpu_irqs_sum()
returns int, which can result in truncation. Therefore, change the
kstat_cpu_irqs_sum() function's return value to unsigned long to avoid
truncation.
Fixes: f2c66cd8eedd ("/proc/stat: scalability of irq num per cpu")
Reported-by: Elliott, Robert (Servers) <[email protected]>
Signed-off-by: Zhen Lei <[email protected]>
Cc: Tejun Heo <[email protected]>
Cc: "Peter Zijlstra (Intel)" <[email protected]>
Cc: Josh Don <[email protected]>
Cc: Andrew Morton <[email protected]>
Reviewed-by: Frederic Weisbecker <[email protected]>
Signed-off-by: Paul E. McKenney <[email protected]>
---
include/linux/kernel_stat.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h
index ddb5a358fd829..90e2fdc17d79f 100644
--- a/include/linux/kernel_stat.h
+++ b/include/linux/kernel_stat.h
@@ -75,7 +75,7 @@ extern unsigned int kstat_irqs_usr(unsigned int irq);
/*
* Number of interrupts per cpu, since bootup
*/
-static inline unsigned int kstat_cpu_irqs_sum(unsigned int cpu)
+static inline unsigned long kstat_cpu_irqs_sum(unsigned int cpu)
{
return kstat_cpu(cpu).irqs_sum;
}
--
2.31.1.189.g2e36527f23