Re: [PATCH v2 16/29] arm_mpam: Add a helper to touch an MSC from any CPU

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On Wed, 10 Sep 2025 20:42:56 +0000
James Morse <james.morse@xxxxxxx> wrote:

> Resetting RIS entries from the cpuhp callback is easy as the
> callback occurs on the correct CPU. This won't be true for any other
> caller that wants to reset or configure an MSC.
> 
> Add a helper that schedules the provided function if necessary.
> 
> Callers should take the cpuhp lock to prevent the cpuhp callbacks from
> changing the MSC state.
> 
> Signed-off-by: James Morse <james.morse@xxxxxxx>
> Reviewed-by: Ben Horgan <ben.horgan@xxxxxxx>
Reviewed-by: Jonathan Cameron <jonathan.cameron@xxxxxxxxxx>




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