diff mbox series

[v7,1/6] genirq: Fix the return type of kstat_cpu_irqs_sum()

Message ID 20221111130709.247-2-thunder.leizhen@huawei.com (mailing list archive)
State Superseded
Headers show
Series rcu: Add RCU stall diagnosis information | expand

Commit Message

Leizhen (ThunderTown) Nov. 11, 2022, 1:07 p.m. UTC
The type of member irqs_sum is unsigned long, so kstat_cpu_irqs_sum()
should also return unsigned long. Otherwise, the value maybe truncated.

Fixes: f2c66cd8eedd ("/proc/stat: scalability of irq num per cpu")
Reported-by: Elliott, Robert (Servers) <elliott@hpe.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
---
 include/linux/kernel_stat.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h
index ddb5a358fd829f4..90e2fdc17d79ff8 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;
 }