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bpf: Remove unused variable "prev_state"

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The variable "prev_state" is not used for any actual operations

v2: Fix commit message and description.

Signed-off-by: Ying Zhang <yingzhang098@163.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/bpf/20240521161702.4339-1-yingzhang098@163.com
This commit is contained in:
Ying Zhang 2024-05-21 16:17:02 +00:00 committed by Andrii Nakryiko
parent f4aba3471c
commit 1b0215a363
1 changed files with 1 additions and 2 deletions
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3
samples/bpf/cpustat_kern.c
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@ -211,7 +211,7 @@ int bpf_prog1(struct cpu_args *ctx)
SEC("tracepoint/power/cpu_frequency")
int bpf_prog2(struct cpu_args *ctx)
{
u64 *pts, *cstate, *pstate, prev_state, cur_ts, delta;
u64 *pts, *cstate, *pstate, cur_ts, delta;
u32 key, cpu, pstate_idx;
u64 *val;
@ -232,7 +232,6 @@ int bpf_prog2(struct cpu_args *ctx)
if (!cstate)
return 0;
prev_state = *pstate;
*pstate = ctx->state;
if (!*pts) {