linux-kernel - [PATCH][next] perf: remove unused pointer task

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Date:   Fri, 28 Oct 2022 13:25:45 +0100
From:   Colin Ian King <colin.i.king@...il.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        linux-perf-users@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH][next] perf: remove unused pointer task_ctx

The pointer task_ctx is being assigned a value that is not read, the
assignment is redundant and so is the pointer. Remove it

Signed-off-by: Colin Ian King <colin.i.king@...il.com>
---
 kernel/events/core.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index ebd9ebd53238..e7c0df152c8f 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -4215,7 +4215,6 @@ static bool perf_rotate_context(struct perf_cpu_pmu_context *cpc)
 	struct perf_cpu_context *cpuctx = this_cpu_ptr(&cpu_context);
 	struct perf_event_pmu_context *cpu_epc, *task_epc = NULL;
 	struct perf_event *cpu_event = NULL, *task_event = NULL;
-	struct perf_event_context *task_ctx = NULL;
 	int cpu_rotate, task_rotate;
 	struct pmu *pmu;
 
@@ -4229,7 +4228,6 @@ static bool perf_rotate_context(struct perf_cpu_pmu_context *cpc)
 	task_epc = cpc->task_epc;
 
 	cpu_rotate = cpu_epc->rotate_necessary;
-	task_ctx = cpuctx->task_ctx;
 	task_rotate = task_epc ? task_epc->rotate_necessary : 0;
 
 	if (!(cpu_rotate || task_rotate))
-- 
2.37.3