linux-kernel - [PATCH v4 11/11] perf/x86/rapl: Remove the unused function cpu_to_rapl

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Message-ID: <20240711102436.4432-12-Dhananjay.Ugwekar@amd.com>
Date: Thu, 11 Jul 2024 10:24:39 +0000
From: Dhananjay Ugwekar <Dhananjay.Ugwekar@....com>
To: <peterz@...radead.org>, <mingo@...hat.com>, <acme@...nel.org>,
	<namhyung@...nel.org>, <mark.rutland@....com>,
	<alexander.shishkin@...ux.intel.com>, <jolsa@...nel.org>,
	<irogers@...gle.com>, <adrian.hunter@...el.com>, <kan.liang@...ux.intel.com>,
	<tglx@...utronix.de>, <bp@...en8.de>, <dave.hansen@...ux.intel.com>,
	<x86@...nel.org>, <kees@...nel.org>, <gustavoars@...nel.org>,
	<rui.zhang@...el.com>, <oleksandr@...alenko.name>
CC: <linux-perf-users@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-hardening@...r.kernel.org>, <ananth.narayan@....com>,
	<gautham.shenoy@....com>, <kprateek.nayak@....com>, <ravi.bangoria@....com>,
	<sandipan.das@....com>, <linux-pm@...r.kernel.org>,
	<Dhananjay.Ugwekar@....com>
Subject: [PATCH v4 11/11] perf/x86/rapl: Remove the unused function cpu_to_rapl_pmu

After the addition of per-core counters support, this function
does not work as the same CPU can be mapped to multiple rapl_pmu
structs (package or per-core). So, remove it.

Signed-off-by: Dhananjay Ugwekar <Dhananjay.Ugwekar@....com>
---
 arch/x86/events/rapl.c | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/arch/x86/events/rapl.c b/arch/x86/events/rapl.c
index 91eb9850df9b..6edbf798a1a0 100644
--- a/arch/x86/events/rapl.c
+++ b/arch/x86/events/rapl.c
@@ -183,18 +183,6 @@ static inline const struct cpumask *get_rapl_pmu_cpumask(int cpu)
 					 topology_die_cpumask(cpu);
 }
 
-static inline struct rapl_pmu *cpu_to_rapl_pmu(unsigned int cpu)
-{
-	unsigned int rapl_pmu_idx = get_rapl_pmu_idx(cpu);
-
-	/*
-	 * The unsigned check also catches the '-1' return value for non
-	 * existent mappings in the topology map.
-	 */
-	return rapl_pmu_idx < rapl_pmus_pkg->nr_rapl_pmu ?
-	       rapl_pmus_pkg->rapl_pmu[rapl_pmu_idx] : NULL;
-}
-
 static inline u64 rapl_read_counter(struct perf_event *event)
 {
 	u64 raw;
-- 
2.34.1