[tip:perf/core] Revert "perf list: Add s390 support for detailed/verbose PMU event description"

[tip-bot for Thomas Richter]

Commit-ID:  b8b5ab52bc3a0423080783ae563801077f7ea400
Gitweb:     https://git.kernel.org/tip/b8b5ab52bc3a0423080783ae563801077f7ea400
Author:     Thomas Richter <tmricht@xxxxxxxxxxxxx>
AuthorDate: Thu, 21 Jun 2018 10:04:49 +0200
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Tue, 24 Jul 2018 14:48:58 -0300

Revert "perf list: Add s390 support for detailed/verbose PMU event description"

This reverts commit 038586c34301578e538f6c5aa79ca82bce1b9152.

Fix the support of detailed/verbose PMU event description by using the
"Unit": keyword in the json files to address event names refering to the
/sys/devices/cpum_[cs]f devices.

Signed-off-by: Thomas Richter <tmricht@xxxxxxxxxxxxx>
Reviewed-by: Hendrik Brueckner <brueckner@xxxxxxxxxxxxx>
Cc: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Cc: Hendrik Brueckner <brueckner@xxxxxxxxxxxxxxxxxx>
Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/20180621080452.61012-1-tmricht@xxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/util/pmu.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 3ba6a1742f91..afd68524ffa9 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -652,12 +652,6 @@ static int is_arm_pmu_core(const char *name)
 	if (stat(path, &st) == 0)
 		return 1;
 
-	/* Look for cpu sysfs (specific to s390) */
-	scnprintf(path, PATH_MAX, "%s/bus/event_source/devices/%s",
-		  sysfs, name);
-	if (stat(path, &st) == 0 && !strncmp(name, "cpum_", 5))
-		return 1;
-
 	return 0;
 }