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784e48a829
Currently hsmp_send_message() uses down_timeout() with a 100ms timeout to take the semaphore. However __hsmp_send_message(), the content of the critical section, has a sleep in it. On systems with significantly delayed scheduling behaviour this may take over 100ms. Convert this method to down_interruptible(). Leave the error handling the same as the documentation currently is not specific about what error is returned. Previous behaviour: a caller who competes with another caller stuck in the critical section due to scheduler delays would receive -ETIME. New behaviour: a caller who competes with another caller stuck in the critical section due to scheduler delays will complete successfully. Reviewed-by: Suma Hegde <suma.hegde@amd.com> Tested-by: Suma Hegde <suma.hegde@amd.com> Signed-off-by: Jake Hillion <jake@hillion.co.uk> Link: https://lore.kernel.org/r/20250605-amd-hsmp-v2-2-a811bc3dd74a@hillion.co.uk Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>