Re: [PATCH v3 05/12] locking/ww_mutex: Remove the __ww_mutex_lock inline wrappers

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On Fri, Dec 23, 2016 at 12:16:03PM +0100, Nicolai Hähnle wrote:

> >For some reason this patch appears to make lib/locking-selftest.c really
> >unhappy.
> >
> >I get endless streams of:
> >
> >../lib/locking-selftest.c: In function ‘ww_test_fail_acquire’:
> >../lib/locking-selftest.c:1141:6: error: void value not ignored as it ought to be
> >  ret = WWL(&o, &t);
> >      ^
> >
> >Apparently GCC gets confused about __much_check on inline functions or
> >something, or I got the patch wrong.
> 
> Weird, I'm not getting that, and it makes no sense either from a quick
> glimpse of the code. Is there anything beside
> CONFIG_DEBUG_LOCKING_API_SELFTESTS I would have to enable to trigger this?

Not entirely sure, I'm building an allmodconfig.

> FWIW:
> 
> $ gcc --version
> gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609

gcc (Debian 6.2.1-5) 6.2.1 20161124

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