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

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Message-ID: <CA+7wUsxWTkwR9hg4R0brY6nB2zYEj=Ka_r6TO+Z3FFdcizKCOw@mail.gmail.com>
Date:   Tue, 26 Dec 2017 19:23:08 +0100
From:   Mathieu Malaterre <malat@...ian.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.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

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.

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