From: Shuah Khan <skhan@linuxfoundation.org>
Date: Wed, 8 Dec 2021 17:47:42 +0000 (-0700)
Subject: tools: fix ARRAY_SIZE defines in tools and selftests hdrs
X-Git-Tag: v5.15.92~5
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c9e52db90031b7a89bf667057df5ca9c25cd68ff;p=platform%2Fkernel%2Flinux-rpi.git

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>
---

diff --git a/tools/include/linux/kernel.h b/tools/include/linux/kernel.h
index c2e1098..5a79572 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 8d50483..f118098 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 78e5962..1177940 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.