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    Subject[PATCH AUTOSEL 5.4 343/459] sched/core: Fix size of rq::uclamp initialization
    Date
    From: Li Guanglei <guanglei.li@unisoc.com>

    [ Upstream commit dcd6dffb0a75741471297724640733fa4e958d72 ]

    rq::uclamp is an array of struct uclamp_rq, make sure we clear the
    whole thing.

    Fixes: 69842cba9ace ("sched/uclamp: Add CPU's clamp buckets refcountinga")
    Signed-off-by: Li Guanglei <guanglei.li@unisoc.com>
    Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
    Reviewed-by: Qais Yousef <qais.yousef@arm.com>
    Link: https://lkml.kernel.org/r/1577259844-12677-1-git-send-email-guangleix.li@gmail.com
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    kernel/sched/core.c | 3 ++-
    1 file changed, 2 insertions(+), 1 deletion(-)

    diff --git a/kernel/sched/core.c b/kernel/sched/core.c
    index 00743684a549a..9540b7e076e64 100644
    --- a/kernel/sched/core.c
    +++ b/kernel/sched/core.c
    @@ -1252,7 +1252,8 @@ static void __init init_uclamp(void)
    mutex_init(&uclamp_mutex);

    for_each_possible_cpu(cpu) {
    - memset(&cpu_rq(cpu)->uclamp, 0, sizeof(struct uclamp_rq));
    + memset(&cpu_rq(cpu)->uclamp, 0,
    + sizeof(struct uclamp_rq)*UCLAMP_CNT);
    cpu_rq(cpu)->uclamp_flags = 0;
    }

    --
    2.20.1
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