linux-kernel - [PATCH v6 5/8] selftests/sigaltstack: Fix wrong format specifier

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Message-ID: <64236465acd03192975dd174aae9b99aad323987.1697196663.git.maciej.wieczor-retman@intel.com>
Date:   Fri, 13 Oct 2023 13:36:29 +0200
From:   Maciej Wieczor-Retman <maciej.wieczor-retman@...el.com>
To:     Shuah Khan <shuah@...nel.org>
Cc:     ilpo.jarvinen@...ux.intel.com, linux-kselftest@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v6 5/8] selftests/sigaltstack: Fix wrong format specifier

Compiling sigaltstack selftest after adding a __printf() attribute to
ksft_print_msg() exposes -Wformat warning in main().
The format specifier inside ksft_print_msg() expects a long
unsigned int but the passed variable is of unsigned int type.

Fix the format specifier so it matches the passed variable.

Signed-off-by: Maciej Wieczor-Retman <maciej.wieczor-retman@...el.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@...ux.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 Reviewed-by tag (Ilpo)

 tools/testing/selftests/sigaltstack/sas.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/sigaltstack/sas.c b/tools/testing/selftests/sigaltstack/sas.c
index 98d37cb744fb..07227fab1cc9 100644
--- a/tools/testing/selftests/sigaltstack/sas.c
+++ b/tools/testing/selftests/sigaltstack/sas.c
@@ -111,7 +111,7 @@ int main(void)
 
 	/* Make sure more than the required minimum. */
 	stack_size = getauxval(AT_MINSIGSTKSZ) + SIGSTKSZ;
-	ksft_print_msg("[NOTE]\tthe stack size is %lu\n", stack_size);
+	ksft_print_msg("[NOTE]\tthe stack size is %u\n", stack_size);
 
 	ksft_print_header();
 	ksft_set_plan(3);
-- 
2.42.0