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authorShuah Khan <skhan@linuxfoundation.org>2021-12-08 10:47:42 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-02-06 07:59:01 +0100
commitc9e52db90031b7a89bf667057df5ca9c25cd68ff (patch)
treec9026a6af18a8b1ae9c7d27dcdf4a0245e33dbc5
parentc1aa0dd52db4ce888be0bd820c3fa918d350ca0b (diff)
tools: fix ARRAY_SIZE defines in tools and selftests hdrs
commit 066b34aa5461f6072dbbecb690f4fe446b736ebf upstream. tools/include/linux/kernel.h and kselftest_harness.h are missing ifndef guard around ARRAY_SIZE define. Fix them to avoid duplicate define errors during compile when another file defines it. This problem was found when compiling selftests that include a header with ARRAY_SIZE define. ARRAY_SIZE is defined in several selftests. There are about 25+ duplicate defines in various selftests source and header files. Add ARRAY_SIZE to kselftest.h in preparation for removing duplicate ARRAY_SIZE defines from individual test files. Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> Cc: Kyle Huey <me@kylehuey.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--tools/include/linux/kernel.h2
-rw-r--r--tools/testing/selftests/kselftest.h4
-rw-r--r--tools/testing/selftests/kselftest_harness.h2
3 files changed, 8 insertions, 0 deletions
diff --git a/tools/include/linux/kernel.h b/tools/include/linux/kernel.h
index c2e109860fbc..5a79572f8b2d 100644
--- a/tools/include/linux/kernel.h
+++ b/tools/include/linux/kernel.h
@@ -108,7 +108,9 @@ int vscnprintf(char *buf, size_t size, const char *fmt, va_list args);
int scnprintf(char * buf, size_t size, const char * fmt, ...);
int scnprintf_pad(char * buf, size_t size, const char * fmt, ...);
+#ifndef ARRAY_SIZE
#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
+#endif
/*
* This looks more complex than it should be. But we need to
diff --git a/tools/testing/selftests/kselftest.h b/tools/testing/selftests/kselftest.h
index 8d50483fe204..f1180987492c 100644
--- a/tools/testing/selftests/kselftest.h
+++ b/tools/testing/selftests/kselftest.h
@@ -48,6 +48,10 @@
#include <stdarg.h>
#include <stdio.h>
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
+#endif
+
/* define kselftest exit codes */
#define KSFT_PASS 0
#define KSFT_FAIL 1
diff --git a/tools/testing/selftests/kselftest_harness.h b/tools/testing/selftests/kselftest_harness.h
index 78e59620d28d..11779405dc80 100644
--- a/tools/testing/selftests/kselftest_harness.h
+++ b/tools/testing/selftests/kselftest_harness.h
@@ -671,7 +671,9 @@
#define EXPECT_STRNE(expected, seen) \
__EXPECT_STR(expected, seen, !=, 0)
+#ifndef ARRAY_SIZE
#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
+#endif
/* Support an optional handler after and ASSERT_* or EXPECT_*. The approach is
* not thread-safe, but it should be fine in most sane test scenarios.