Messages in this thread | | | From | Kay Sievers <> | Date | Wed, 24 Apr 2013 20:41:10 +0200 | Subject | Re: [PATCH] time: Revert ALWAYS_USE_PERSISTENT_CLOCK compile time optimizaitons |
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On Wed, Apr 24, 2013 at 8:32 PM, John Stultz <john.stultz@linaro.org> wrote: > Kay Sievers noted that the ALWAYS_USE_PERSISTENT_CLOCK config, > which enables some minor compile time optimization to avoid > uncessary code in mostly the suspend/resume path could cause > problems for userland. > > In particular, the dependency for RTC_HCTOSYS on > !ALWAYS_USE_PERSISTENT_CLOCK, which avoids setting the time > twice and simplifies suspend/resume, has the side effect > of causing the /sys/class/rtc/rtcN/hctosys flag to always be > zero, and this flag is commonly used by udev to setup the > /dev/rtc symlink to /dev/rtcN, which can cause pain for > older applications.
FWIW, in the light of the original change, I've just removed the /dev/rtc creation from the default udev rules now, so that thing will be phased out in the future.
Thanks, Kay
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