linux-kernel - [PATCH] libperf test: Fix build error

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Message-Id: <20211006095703.477826-1-nakamura.shun@fujitsu.com>
Date:   Wed,  6 Oct 2021 18:57:03 +0900
From:   Shunsuke Nakamura <nakamura.shun@...itsu.com>
To:     peterz@...radead.org, mingo@...hat.com, acme@...nel.org,
        mark.rutland@....com, alexander.shishkin@...ux.intel.com,
        jolsa@...hat.com, namhyung@...nel.org
Cc:     linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org
Subject: [PATCH] libperf test: Fix build error

In test_stat_user_read, following build error occurs except i386 and 
x86_64 architectures:

tests/test-evsel.c:129:31: error: variable 'pc' set but not used [-Werror=unused-but-set-variable]
  struct perf_event_mmap_page *pc;

Fix build error.

Signed-off-by: Shunsuke Nakamura <nakamura.shun@...itsu.com>
---
 tools/lib/perf/tests/test-evsel.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/lib/perf/tests/test-evsel.c b/tools/lib/perf/tests/test-evsel.c
index a184e4861627..9abd4c0bf6db 100644
--- a/tools/lib/perf/tests/test-evsel.c
+++ b/tools/lib/perf/tests/test-evsel.c
@@ -148,6 +148,7 @@ static int test_stat_user_read(int event)
 	__T("failed to mmap evsel", err == 0);
 
 	pc = perf_evsel__mmap_base(evsel, 0, 0);
+	__T("failed to get mmapped address", pc);
 
 #if defined(__i386__) || defined(__x86_64__)
 	__T("userspace counter access not supported", pc->cap_user_rdpmc);
-- 
2.25.1