Re: [PATCH] perf x86: Fix compile of util/tsc.c

[Adrian Hunter]

On 26/07/13 17:27, David Ahern wrote:
> On Fedora 18, with gcc 4.6.4 compile fails with:
> 
> arch/x86/util/tsc.c: In function âperf_time_to_tscâ:
> arch/x86/util/tsc.c:13:6: error: declaration of âtimeâ shadows a global declaration [-Werror=shadow]
> cc1: all warnings being treated as errors
> make: *** [/tmp/junk/arch/x86/util/tsc.o] Error 1
> make: *** Waiting for unfinished jobs....
> 
> Fix by renaming the local variable.
> 
> Signed-off-by: David Ahern <dsahern@xxxxxxxxx>
> Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>

Acked-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>

> ---
>  tools/perf/arch/x86/util/tsc.c |    8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/tools/perf/arch/x86/util/tsc.c b/tools/perf/arch/x86/util/tsc.c
> index f111744..9570c2b 100644
> --- a/tools/perf/arch/x86/util/tsc.c
> +++ b/tools/perf/arch/x86/util/tsc.c
> @@ -10,11 +10,11 @@
>  
>  u64 perf_time_to_tsc(u64 ns, struct perf_tsc_conversion *tc)
>  {
> -	u64 time, quot, rem;
> +	u64 t, quot, rem;
>  
> -	time = ns - tc->time_zero;
> -	quot = time / tc->time_mult;
> -	rem  = time % tc->time_mult;
> +	t = ns - tc->time_zero;
> +	quot = t / tc->time_mult;
> +	rem  = t % tc->time_mult;
>  	return (quot << tc->time_shift) +
>  	       (rem << tc->time_shift) / tc->time_mult;
>  }
> 

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