PowerPC build fail

Michael Ellerman mpe at ellerman.id.au
Tue Feb 28 14:42:30 AEDT 2017

"Tobin C. Harding" <me at tobin.cc> writes:

> On Mon, Feb 27, 2017 at 09:38:13PM +1100, Michael Ellerman wrote:
>> Hi Tobin,
>> "Tobin C. Harding" <me at tobin.cc> writes:
>> > The current (2bfe01e) torvalds git tree fails to build on powerpc64. Build machine
>> > is virtualized.
>> >
>> > - Build error
>> > arch/powerpc/kernel/time.c: In function ‘running_clock’:
>> > arch/powerpc/kernel/time.c:712:25: error: implicit declaration of function ‘cputime_to_nsecs’
>> >    return local_clock() - cputime_to_nsecs(kcpustat_this_cpu->cpustat[CPUTIME_STEAL]);
>> >                           ^
>> ...
>> >
>> > If you think this can be fixed with the *little* kernel dev knowledge
>> > I have please point me at a starting place and I will dig into it.
>> Thanks for trying to fix it.
>> You got unlucky and pulled Linus' tree just after a cleanup series was
>> merged, but before all the bugs had been shaken out.
> Au contraire, I felt lucky to have bumped into a bug. I would like to
> find more :)

Hah, well, we have *plenty* :)

I keep a rough list of TODO/FIXME type things on github:


If there's anything there that you want to have a go at please feel
free. If you have questions you can either comment on the issues or mail
me and/or this list.


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