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| author | Zhen Lei <thunder.leizhen@huawei.com> | 2022-11-19 17:25:03 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-11 16:31:35 +0100 |
| commit | b84d49628b0fcb1c4925b565ccfeb50a0b0f4630 (patch) | |
| tree | cb0358ffa52b5f9e7dbbddecea265661e2e3020b /include/linux | |
| parent | e2bc6ee13ddc737778258793596e2e8f1a104fa0 (diff) | |
| download | linux-stable-b84d49628b0fcb1c4925b565ccfeb50a0b0f4630.tar.gz linux-stable-b84d49628b0fcb1c4925b565ccfeb50a0b0f4630.tar.bz2 linux-stable-b84d49628b0fcb1c4925b565ccfeb50a0b0f4630.zip | |
genirq: Fix the return type of kstat_cpu_irqs_sum()
[ Upstream commit 47904aed898a08f028572b9b5a5cc101ddfb2d82 ]
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) <elliott@hpe.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org>
Cc: Josh Don <joshdon@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/kernel_stat.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h index 7ee2bb43b251..f7f20cf1bd3b 100644 --- a/include/linux/kernel_stat.h +++ b/include/linux/kernel_stat.h @@ -73,7 +73,7 @@ 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; } |