On 07/11/16 22:14, Nicolas Pitre wrote: > In order to break the hard dependency between the PTP clock subsystem and > ethernet drivers capable of being clock providers, this patch provides > simple PTP stub functions to allow linkage of those drivers into the > kernel even when the PTP subsystem is configured out. Drivers must be > ready to accept NULL from ptp_clock_register() in that case. > > And to make it possible for PTP to be configured out, the select statement > in those driver's Kconfig menu entries is converted to the new "imply" > statement. This way the PTP subsystem may have Kconfig dependencies of > its own, such as POSIX_TIMERS, without having to make those ethernet > drivers unavailable if POSIX timers are cconfigured out. And when support > for POSIX timers is selected again then the default config option for PTP > clock support will automatically be adjusted accordingly. > > The pch_gbe driver is a bit special as it relies on extra code in > drivers/ptp/ptp_pch.c. Therefore we let the make process descend into > drivers/ptp/ even if PTP_1588_CLOCK is unselected. > > Signed-off-by: Nicolas Pitre <nico@xxxxxxxxxx> > Reviewed-by: Josh Triplett <josh@xxxxxxxxxxxxxxxx> > Acked-by: Richard Cochran <richardcochran@xxxxxxxxx> For the sfc change: Acked-by: Edward Cree <ecree@xxxxxxxxxxxxxx> And I accept that "suggests" isn't needed and the current "imply" semantics are probably fine. If not we can always change it or resurrect "suggests". The information contained in this message is confidential and is intended for the addressee(s) only. If you have received this message in error, please notify the sender immediately and delete the message. Unless you are an addressee (or authorized to receive for an addressee), you may not use, copy or disclose to anyone this message or any information contained in this message. The unauthorized use, disclosure, copying or alteration of this message is strictly prohibited. -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
