linux-kernel - Re: [PATCH] [perf/core branch] perf coresight: Fix ARM builds caused by misplaced _

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Message-Id: <20170619142633.51d138db0c0b8befa0542bf6@arm.com>
Date:   Mon, 19 Jun 2017 14:26:33 -0500
From:   Kim Phillips <kim.phillips@....com>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Mathieu Poirier <mathieu.poirier@...aro.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] [perf/core branch] perf coresight: Fix ARM builds
 caused by misplaced __printf

On Mon, 19 Jun 2017 15:42:09 -0300
Arnaldo Carvalho de Melo <acme@...nel.org> wrote:

> Em Mon, Jun 19, 2017 at 11:51:20AM -0600, Mathieu Poirier escreveu:
> > On 16 June 2017 at 13:59, Kim Phillips <kim.phillips@....com> wrote:
> > > -static int cs_device__print_file(const char *name, const char *fmt, ...) __printf(2, 3)
> > > +static int __printf(2, 3) cs_device__print_file(const char *name, const char *fmt, ...)
> > >  {
> > >         va_list args;
> > >         FILE *file;
> > 
> > I just tested Kim's solution on my side.
> > 
> > Acked-by: Mathieu Poirier <mathieu.poirier@...aro.org>
> 
> Thanks for checking, since I haven't pushed this to Ingo I just squashed
> Kim's fix into the buggy cset.
> 
> Now I'm trying to build it with lots of cross build containers to see if
> there are any other problems before push this up to Ingo.

Thanks, I'm still trying to learn the submission process...

Slightly off-topic, but when you push kernel.org/.../acme/linux.git, do
you push --tags?

If I do a fresh clone, checkout perf/core or urgent, build perf,
PERF-VERSION-GEN first uses git to find the version number, then the
Makefile.  But in acme/linux.git, the latest version tag looks to match
the master branch version: 3.2: so I get a 3.2-reporting version on
what should be 4.12-rc4 (perf/core's current Makefile):

$ tools/perf/perf --version
perf version 3.2.gd15e591

Is this an acme/linux.git tree maintenance issue, or should
PERF-VERSION-GEN be modified to compare versions gotten from git vs.
the Makefile, and just use the higher one?

Thanks,

Kim