ptp_clock: future-proofing drivers against PTP subsystem becoming optional
Drivers must be ready to accept NULL from ptp_clock_register() if the PTP clock subsystem is configured out. This patch documents that and ensures that all drivers cope well with a NULL return. Signed-off-by:Nicolas Pitre <nico@linaro.org> Reviewed-by:
Eugenia Emantayev <eugenia@mellanox.com> Acked-by:
Richard Cochran <richardcochran@gmail.com> Acked-by:
Edward Cree <ecree@solarflare.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
parent
d270f76c
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