linux-kernel - Re: [PATCH] perf bench: remove unneeded variable

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Date:   Tue, 13 Jun 2023 21:43:32 -0700
From:   Ian Rogers <irogers@...gle.com>
To:     baomingtong001@...suo.com
Cc:     peterz@...radead.org, mingo@...hat.com, acme@...nel.org,
        mark.rutland@....com, alexander.shishkin@...ux.intel.com,
        jolsa@...nel.org, namhyung@...nel.org, adrian.hunter@...el.com,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] perf bench: remove unneeded variable

On Tue, Jun 13, 2023 at 8:38 PM <baomingtong001@...suo.com> wrote:
>
> fix the following coccicheck warning:
>
> tools/perf/bench/find-bit-bench.c:127:5-8: Unneeded variable: "err".
> Return "0".
>
> Signed-off-by: Mingtong Bao <baomingtong001@...suo.com>

Reviewed-by: Ian Rogers <irogers@...gle.com>

Thanks,
Ian

> ---
>   tools/perf/bench/find-bit-bench.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/tools/perf/bench/find-bit-bench.c
> b/tools/perf/bench/find-bit-bench.c
> index 7e25b0e413f6..70619bc73841 100644
> --- a/tools/perf/bench/find-bit-bench.c
> +++ b/tools/perf/bench/find-bit-bench.c
> @@ -124,7 +124,7 @@ static int do_for_each_set_bit(unsigned int
> num_bits)
>
>   int bench_mem_find_bit(int argc, const char **argv)
>   {
> -    int err = 0, i;
> +    int i;
>
>       argc = parse_options(argc, argv, options, bench_usage, 0);
>       if (argc) {
> @@ -135,5 +135,5 @@ int bench_mem_find_bit(int argc, const char **argv)
>       for (i = 1; i <= 2048; i <<= 1)
>           do_for_each_set_bit(i);
>
> -    return err;
> +    return 0;
>   }