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    SubjectRe: [PATCH 04/11] arm64: cpufeature: Pass capability structure to ->enable callback
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    On 04/01/18 15:08, Will Deacon wrote:
    > In order to invoke the CPU capability ->matches callback from the ->enable
    > callback for applying local-CPU workarounds, we need a handle on the
    > capability structure.
    >
    > This patch passes a pointer to the capability structure to the ->enable
    > callback.
    >
    > Signed-off-by: Will Deacon <will.deacon@arm.com>
    > ---
    > arch/arm64/kernel/cpufeature.c | 4 ++--
    > 1 file changed, 2 insertions(+), 2 deletions(-)
    >
    > diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
    > index e11c11bb5b02..6133c14b9b01 100644
    > --- a/arch/arm64/kernel/cpufeature.c
    > +++ b/arch/arm64/kernel/cpufeature.c
    > @@ -1151,7 +1151,7 @@ void __init enable_cpu_capabilities(const struct arm64_cpu_capabilities *caps)
    > * uses an IPI, giving us a PSTATE that disappears when
    > * we return.
    > */
    > - stop_machine(caps->enable, NULL, cpu_online_mask);
    > + stop_machine(caps->enable, (void *)caps, cpu_online_mask);
    > }
    > }
    > }
    > @@ -1194,7 +1194,7 @@ verify_local_cpu_features(const struct arm64_cpu_capabilities *caps)
    > cpu_die_early();
    > }
    > if (caps->enable)
    > - caps->enable(NULL);
    > + caps->enable((void *)caps);
    > }
    > }
    >
    >

    Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>



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