Re: [PATCH 1/3] perf skel: Remove some unused variables.

[Song Liu <songliubraving@fb.com>]

> On Mar 6, 2021, at 12:08 AM, Ian Rogers <irogers@google.com> wrote:
> 
> Fixes -Wall warnings.
> 
> Signed-off-by: Ian Rogers <irogers@google.com>

Acked-by: Song Liu <songliubraving@fb.com>

Thanks for the clean up!

> ---
> tools/perf/util/bpf_skel/bpf_prog_profiler.bpf.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/tools/perf/util/bpf_skel/bpf_prog_profiler.bpf.c b/tools/perf/util/bpf_skel/bpf_prog_profiler.bpf.c
> index c7cec92d0236..ab12b4c4ece2 100644
> --- a/tools/perf/util/bpf_skel/bpf_prog_profiler.bpf.c
> +++ b/tools/perf/util/bpf_skel/bpf_prog_profiler.bpf.c
> @@ -52,7 +52,7 @@ int BPF_PROG(fentry_XXX)
> static inline void
> fexit_update_maps(struct bpf_perf_event_value *after)
> {
> -	struct bpf_perf_event_value *before, diff, *accum;
> +	struct bpf_perf_event_value *before, diff;
> 	__u32 zero = 0;
> 
> 	before = bpf_map_lookup_elem(&fentry_readings, &zero);
> @@ -78,7 +78,6 @@ int BPF_PROG(fexit_XXX)
> {
> 	struct bpf_perf_event_value reading;
> 	__u32 cpu = bpf_get_smp_processor_id();
> -	__u32 one = 1, zero = 0;
> 	int err;
> 
> 	/* read all events before updating the maps, to reduce error */
> -- 
> 2.30.1.766.gb4fecdf3b7-goog
>