[RFC][PATCH] ppc misusing NTP's time_offset value

Kumar Gala kumar.gala at freescale.com
Thu Jun 30 21:53:50 EST 2005

I think you forgot the patch.

- kumar

On Jun 30, 2005, at 5:15 AM, Mikael Pettersson wrote:

> On Wed, 29 Jun 2005 15:05:51 -0700, john stultz wrote:
>>     As part of my timeofday rework, I've been looking at the NTP
> code and I
>> noticed that the PPC architecture is apparently misusing the NTP's
>> time_offset (it is a terrible name!) value as some form of timezone
>> offset. This could cause problems when time_offset changed by the NTP
>> code.
>>     This patch changes the PPC code so it uses a more clear local
> variable:
>> timezone_offset.
>> Could a PPC maintainer verify this is correct?
>> Let me know if you have any comments or feedback.
> arch/ppc/kernel/time.c used to have a 'static long time_offset;'
> variable. Ulthough unrelated, this declaration clashed with the
> one for kernel/time.c, causing compile-time errors with gcc4.
> I submitted a fix for this in February, which renamed ppc's local
> variable, and it was ACKed by Tom Rini and queued for 2.6.12.
> However, the patch that actually went into 2.6.12 was different:
> it just removed ppc's local variable, making arch/ppc/kernel/time.c
> now share kernel/time.c's variable. At the time I assumed someone
> had proved that the two modules _should_ share state, so I didn't
> make a fuss about it.
> Your patch brings the semantics back to what it was prior to 2.6.12.
> /Mikael
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