linux-kernel - [tip:x86/topology] perf/x86/intel/rapl: Cosmetic rename internal variables in response to multi-die/pkg support

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Date:   Thu, 23 May 2019 02:35:32 -0700
From:   tip-bot for Kan Liang <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     tglx@...utronix.de, linux-kernel@...r.kernel.org,
        len.brown@...el.com, peterz@...radead.org,
        kan.liang@...ux.intel.com, mingo@...nel.org, hpa@...or.com
Subject: [tip:x86/topology] perf/x86/intel/rapl: Cosmetic rename internal
 variables in response to multi-die/pkg support

Commit-ID:  eb876fbc248e6eb4773a5bc80d205ff7262b1bb5
Gitweb:     https://git.kernel.org/tip/eb876fbc248e6eb4773a5bc80d205ff7262b1bb5
Author:     Kan Liang <kan.liang@...ux.intel.com>
AuthorDate: Mon, 13 May 2019 13:59:03 -0400
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Thu, 23 May 2019 10:08:37 +0200

perf/x86/intel/rapl: Cosmetic rename internal variables in response to multi-die/pkg support

Syntax update only -- no logical or functional change.

In response to the new multi-die/package changes, update variable names to
use "die" terminology, instead of "pkg".

For previous platforms which doesn't have multi-die, "die" is identical as
"pkg".

Signed-off-by: Kan Liang <kan.liang@...ux.intel.com>
Signed-off-by: Len Brown <len.brown@...el.com>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Reviewed-by: Ingo Molnar <mingo@...nel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Link: https://lkml.kernel.org/r/0ddb97e121397d37933233da303556141814fa47.1557769318.git.len.brown@intel.com

---
 arch/x86/events/intel/rapl.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/x86/events/intel/rapl.c b/arch/x86/events/intel/rapl.c
index 6f5331271563..3992b0e65a55 100644
--- a/arch/x86/events/intel/rapl.c
+++ b/arch/x86/events/intel/rapl.c
@@ -148,7 +148,7 @@ struct rapl_pmu {
 
 struct rapl_pmus {
 	struct pmu		pmu;
-	unsigned int		maxpkg;
+	unsigned int		maxdie;
 	struct rapl_pmu		*pmus[];
 };
 
@@ -161,13 +161,13 @@ static u64 rapl_timer_ms;
 
 static inline struct rapl_pmu *cpu_to_rapl_pmu(unsigned int cpu)
 {
-	unsigned int pkgid = topology_logical_die_id(cpu);
+	unsigned int dieid = topology_logical_die_id(cpu);
 
 	/*
 	 * The unsigned check also catches the '-1' return value for non
 	 * existent mappings in the topology map.
 	 */
-	return pkgid < rapl_pmus->maxpkg ? rapl_pmus->pmus[pkgid] : NULL;
+	return dieid < rapl_pmus->maxdie ? rapl_pmus->pmus[dieid] : NULL;
 }
 
 static inline u64 rapl_read_counter(struct perf_event *event)
@@ -668,22 +668,22 @@ static void cleanup_rapl_pmus(void)
 {
 	int i;
 
-	for (i = 0; i < rapl_pmus->maxpkg; i++)
+	for (i = 0; i < rapl_pmus->maxdie; i++)
 		kfree(rapl_pmus->pmus[i]);
 	kfree(rapl_pmus);
 }
 
 static int __init init_rapl_pmus(void)
 {
-	int maxpkg = topology_max_packages() * topology_max_die_per_package();
+	int maxdie = topology_max_packages() * topology_max_die_per_package();
 	size_t size;
 
-	size = sizeof(*rapl_pmus) + maxpkg * sizeof(struct rapl_pmu *);
+	size = sizeof(*rapl_pmus) + maxdie * sizeof(struct rapl_pmu *);
 	rapl_pmus = kzalloc(size, GFP_KERNEL);
 	if (!rapl_pmus)
 		return -ENOMEM;
 
-	rapl_pmus->maxpkg		= maxpkg;
+	rapl_pmus->maxdie		= maxdie;
 	rapl_pmus->pmu.attr_groups	= rapl_attr_groups;
 	rapl_pmus->pmu.task_ctx_nr	= perf_invalid_context;
 	rapl_pmus->pmu.event_init	= rapl_pmu_event_init;