diff mbox series

[v6,7/8] selftests/mm: Substitute attribute with a macro

Message ID d12e0d3f4c7505972877a507b2bfe29591ddde93.1697196663.git.maciej.wieczor-retman@intel.com (mailing list archive)
State Accepted
Headers show
Series Add printf attribute to kselftest functions | expand

Commit Message

Maciej Wieczor-Retman Oct. 13, 2023, 11:36 a.m. UTC
Compiling mm selftest after adding a __printf() attribute to
ksft_print_msg() exposes -Wformat warning in remap_region().

Fix the wrong format specifier causing the warning.

The mm selftest uses the printf attribute in its full form. Since the
header file that uses it also includes kselftests.h it can use the macro
defined there.

Use __printf() included with kselftests.h instead of the full attribute.

Signed-off-by: Maciej Wieczor-Retman <maciej.wieczor-retman@intel.com>
---
Changelog v6:
- Add an explanation to the patch message on how the warning that the
  patch resolves was caught. (Shuah)

Changelog v2:
- Add this patch to the series.

 tools/testing/selftests/mm/mremap_test.c  | 2 +-
 tools/testing/selftests/mm/pkey-helpers.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/tools/testing/selftests/mm/mremap_test.c b/tools/testing/selftests/mm/mremap_test.c
index 5c3773de9f0f..1dbfcf6df255 100644
--- a/tools/testing/selftests/mm/mremap_test.c
+++ b/tools/testing/selftests/mm/mremap_test.c
@@ -338,7 +338,7 @@  static long long remap_region(struct config c, unsigned int threshold_mb,
 		char c = (char) rand();
 
 		if (((char *) dest_addr)[i] != c) {
-			ksft_print_msg("Data after remap doesn't match at offset %d\n",
+			ksft_print_msg("Data after remap doesn't match at offset %llu\n",
 				       i);
 			ksft_print_msg("Expected: %#x\t Got: %#x\n", c & 0xff,
 					((char *) dest_addr)[i] & 0xff);
diff --git a/tools/testing/selftests/mm/pkey-helpers.h b/tools/testing/selftests/mm/pkey-helpers.h
index 92f3be3dd8e5..1af3156a9db8 100644
--- a/tools/testing/selftests/mm/pkey-helpers.h
+++ b/tools/testing/selftests/mm/pkey-helpers.h
@@ -34,7 +34,7 @@  extern int test_nr;
 extern int iteration_nr;
 
 #ifdef __GNUC__
-__attribute__((format(printf, 1, 2)))
+__printf(1, 2)
 #endif
 static inline void sigsafe_printf(const char *format, ...)
 {