From: Borislav Petkov bp@suse.de
[ Upstream commit e0d648f9d883ec1efab261af158d73aa30e9dd12 ]
Work around this warning:
kernel/sched/cputime.c: In function ‘kcpustat_field’: kernel/sched/cputime.c:1007:6: warning: ‘val’ may be used uninitialized in this function [-Wmaybe-uninitialized]
because GCC can't see that val is used only when err is 0.
Acked-by: Peter Zijlstra peterz@infradead.org Signed-off-by: Borislav Petkov bp@suse.de Signed-off-by: Ingo Molnar mingo@kernel.org Link: https://lore.kernel.org/r/20200327214334.GF8015@zn.tnic Signed-off-by: Sasha Levin sashal@kernel.org --- kernel/sched/cputime.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c index dac9104d126f7..ff9435dee1df2 100644 --- a/kernel/sched/cputime.c +++ b/kernel/sched/cputime.c @@ -1003,12 +1003,12 @@ u64 kcpustat_field(struct kernel_cpustat *kcpustat, enum cpu_usage_stat usage, int cpu) { u64 *cpustat = kcpustat->cpustat; + u64 val = cpustat[usage]; struct rq *rq; - u64 val; int err;
if (!vtime_accounting_enabled_cpu(cpu)) - return cpustat[usage]; + return val;
rq = cpu_rq(cpu);