linux-kernel - Re: [PATCH 2/3] perf/core: Move inline keyword at the beginning of declaration

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Message-ID: <20171226201936.GX21971@kernel.org>
Date:   Tue, 26 Dec 2017 17:19:36 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Mathieu Malaterre <malat@...ian.org>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] perf/core: Move inline keyword at the beginning of
 declaration

Em Tue, Dec 26, 2017 at 07:23:08PM +0100, Mathieu Malaterre escreveu:
> Hi Arnaldo,
> 
> On Tue, Dec 26, 2017 at 4:05 PM, Arnaldo Carvalho de Melo
> <acme@...nel.org> wrote:
> > Em Tue, Dec 26, 2017 at 03:09:13PM +0100, Mathieu Malaterre escreveu:
> >> Fix non-fatal warning:

> >> kernel/events/core.c:6106:1: warning: ‘inline’ is not at beginning of declaration [-Wold-style-declaration]
> >>  static void __always_inline
> >>  ^~~~~~

> > Can you please provide more context? When did this become a problem?
> > What gcc version?
 
> I tend to use W=1 before submitting a patch since not everything is
> being caught by ./scripts/checkpatch.pl. So this trivial patch was
> simply a way for me to remove some warning pollution I was seeing on
> my branch (not clear why this specific warning is considered an error
> in other section of the linux tree). This is a custom pmac32 branch,
> gcc version is:
 
> $ powerpc-linux-gnu-gcc --version
> powerpc-linux-gnu-gcc (Debian 6.3.0-18) 6.3.0 20170516

> Feel free to drop it if this is too much noise.

Nah, I just like to have enough info on the cset as to where is that the
problem takes place, which you now have provided and I'll add to the
cset, thanks!

- Arnaldo
 
> Thanks
> 
> > - Arnaldo
> >
> >> Signed-off-by: Mathieu Malaterre <malat@...ian.org>
> >> ---
> >>  kernel/events/core.c | 2 +-
> >>  1 file changed, 1 insertion(+), 1 deletion(-)
> >>
> >> diff --git a/kernel/events/core.c b/kernel/events/core.c
> >> index 4df5b695bf0d..aa874d2b58b3 100644
> >> --- a/kernel/events/core.c
> >> +++ b/kernel/events/core.c
> >> @@ -6103,7 +6103,7 @@ void perf_prepare_sample(struct perf_event_header *header,
> >>               data->phys_addr = perf_virt_to_phys(data->addr);
> >>  }
> >>
> >> -static void __always_inline
> >> +static __always_inline void
> >>  __perf_event_output(struct perf_event *event,
> >>                   struct perf_sample_data *data,
> >>                   struct pt_regs *regs,
> >> --
> >> 2.11.0