linux-kernel - [PATCH 4.9 44/83] Revert "perf test 6: Fix missing kvm module load for s390"

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Message-Id: <20190904175307.727656314@linuxfoundation.org>
Date:   Wed,  4 Sep 2019 19:53:36 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.9 44/83] Revert "perf test 6: Fix missing kvm module load for s390"

This reverts commit 9a501cdb05348fa8f85db8df5a82f4b8cd11594e.

Which was upstream commit 53fe307dfd309e425b171f6272d64296a54f4dff.

Ben Hutchings reports that this commit depends on new code added in
v4.18, and so is irrelevant on older kernels, and breaks the build.

Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 tools/perf/tests/parse-events.c | 27 ---------------------------
 1 file changed, 27 deletions(-)

diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c
index 9134a0c3e99df..aa9276bfe3e9b 100644
--- a/tools/perf/tests/parse-events.c
+++ b/tools/perf/tests/parse-events.c
@@ -12,32 +12,6 @@
 #define PERF_TP_SAMPLE_TYPE (PERF_SAMPLE_RAW | PERF_SAMPLE_TIME | \
 			     PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD)
 
-#if defined(__s390x__)
-/* Return true if kvm module is available and loaded. Test this
- * and retun success when trace point kvm_s390_create_vm
- * exists. Otherwise this test always fails.
- */
-static bool kvm_s390_create_vm_valid(void)
-{
-	char *eventfile;
-	bool rc = false;
-
-	eventfile = get_events_file("kvm-s390");
-
-	if (eventfile) {
-		DIR *mydir = opendir(eventfile);
-
-		if (mydir) {
-			rc = true;
-			closedir(mydir);
-		}
-		put_events_file(eventfile);
-	}
-
-	return rc;
-}
-#endif
-
 static int test__checkevent_tracepoint(struct perf_evlist *evlist)
 {
 	struct perf_evsel *evsel = perf_evlist__first(evlist);
@@ -1619,7 +1593,6 @@ static struct evlist_test test__events[] = {
 	{
 		.name  = "kvm-s390:kvm_s390_create_vm",
 		.check = test__checkevent_tracepoint,
-		.valid = kvm_s390_create_vm_valid,
 		.id    = 100,
 	},
 #endif
-- 
2.20.1