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arm64: cpufeature: Pass capability structure to ->enable callback

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From: Will Deacon <will.deacon@arm.com>

commit 0a0d111d40 upstream.

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.

Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com> [v4.9 backport]
Tested-by: Greg Hackmann <ghackmann@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mark Rutland
2018-04-12 12:11:09 +01:00
committed by Greg Kroah-Hartman
parent 3c31fa5a06
commit 92e7a8317d
1 changed files with 2 additions and 2 deletions
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4
arch/arm64/kernel/cpufeature.c
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@@ -1058,7 +1058,7 @@ 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);
}
/*
@@ -1115,7 +1115,7 @@ verify_local_cpu_features(const struct arm64_cpu_capabilities *caps_list)
cpu_die_early();
}
if (caps->enable)
caps->enable(NULL);
caps->enable((void *)caps);
}
}