Re: Fwd: Re: Inclusion for 916d4092a1d2d7b in 4.4 stable

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On Fri, May 20, 2016 at 09:19:04AM +0300, Nikolay Borisov wrote:
> 
> 
> On 05/19/2016 06:33 PM, Greg KH wrote:
> > On Thu, May 19, 2016 at 06:00:30PM +0300, Nikolay Borisov wrote:
> >> [Resending since I did mistyped the stable mailing list address]
> >>
> >>> On Wed, May 18, 2016 at 06:13:43PM +0300, Nikolay Borisov wrote:
> >>>>
> >>>>
> >>>> On 05/18/2016 06:10 PM, Greg KH wrote:
> >>>>> On Wed, May 18, 2016 at 04:02:35PM +0300, Nikolay Borisov wrote:
> >>>>>> Hello Greg,
> >>>>>>
> >>>>>> Turns out building perf is broken in the 4.4 kernel tree on centos6.
> >>>>>> Executing make in toosl/perf results in :
> >>>>>>
> >>>>>> cc1: warnings being treated as errors
> >>>>>> tests/llvm.c: In function ‘test_llvm__fetch_bpf_obj’:
> >>>>>> tests/llvm.c:53: error: declaration of ‘index’ shadows a global declaration
> >>>>>> /usr/include/string.h:489: error: shadowed declaration is here
> >>>>>> mv: cannot stat `tests/.llvm.o.tmp': No such file or directory
> >>>>>>
> >>>>>> This can be fixed by applying the following commit:
> >>>>>> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=916d4092a1d2d7bb50630497be71ee4c4c2807fa
> >>>>>>
> >>>>>> Would it be possible to apply it for 4.4.12 otherwise using perf from
> >>>>>> that tree is useless?
> >>>>>
> >>>>> Is this something that recently broke?  Or has it always been an issue?
> >>>>
> >>>> According to the Fixes tags in the commit this broke in the following
> >>>> series: http://marc.info/?l=linux-kernel&m=144681782820358
> >>>>
> >>>> Which was applied in November 6. 2015. So I'd say it's been fairly
> >>>> recently.
> >>>
> >>> So it's always been broken in 4.4?  Or did I break it in a newer
> >>> release?
> >>
> >> Before that I was on 3.12 stable and everything worked, so I guess it
> >> did break in the release which included the aforementioned patches.
> > 
> > That's not what I need to know.  Is 4.4.0 broken?  If not, then I worry,
> > if so, then there's not really anything interesting here.  Unless 4.6.0
> > also works.  Does it?
> 
> Just tested, so 4.4.0 is broken, 4.6 works.

Great, can you use 'git bisect' to find the patch that fixes it?
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