Let the compilers (clang) know that this function would just call exit() and would never return. It is needed to avoid false positive static analysis errors. All similar functions calling exit() unconditionally have been marked as __noreturn.
Signed-off-by: Muhammad Usama Anjum usama.anjum@collabora.com --- This patch has been suggested [1] and tested on top of the following patches: - f07041728422 ("selftests: add ksft_exit_fail_perror()") which is in kselftest tree already - ("kselftest: Mark functions that unconditionally call exit() as __noreturn") would appear in tip/timers/urgent
[1] https://lore.kernel.org/all/8254ab4d-9cb6-402e-80dd-d9ec70d77de5@linuxfounda... --- tools/testing/selftests/kselftest.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/kselftest.h b/tools/testing/selftests/kselftest.h index 050c5fd018400..b43a7a7ca4b40 100644 --- a/tools/testing/selftests/kselftest.h +++ b/tools/testing/selftests/kselftest.h @@ -372,7 +372,7 @@ static inline __printf(1, 2) int ksft_exit_fail_msg(const char *msg, ...) exit(KSFT_FAIL); }
-static inline void ksft_exit_fail_perror(const char *msg) +static inline __noreturn void ksft_exit_fail_perror(const char *msg) { #ifndef NOLIBC ksft_exit_fail_msg("%s: %s (%d)\n", msg, strerror(errno), errno);
On Sun, Apr 14, 2024 at 11:26:53AM +0500, Muhammad Usama Anjum wrote:
Let the compilers (clang) know that this function would just call exit() and would never return. It is needed to avoid false positive static analysis errors. All similar functions calling exit() unconditionally have been marked as __noreturn.
Signed-off-by: Muhammad Usama Anjum usama.anjum@collabora.com
Reviewed-by: Nathan Chancellor nathan@kernel.org
This patch has been suggested [1] and tested on top of the following patches:
- f07041728422 ("selftests: add ksft_exit_fail_perror()") which is in kselftest tree already
- ("kselftest: Mark functions that unconditionally call exit() as __noreturn") would appear in tip/timers/urgent
[1] https://lore.kernel.org/all/8254ab4d-9cb6-402e-80dd-d9ec70d77de5@linuxfounda...
tools/testing/selftests/kselftest.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/kselftest.h b/tools/testing/selftests/kselftest.h index 050c5fd018400..b43a7a7ca4b40 100644 --- a/tools/testing/selftests/kselftest.h +++ b/tools/testing/selftests/kselftest.h @@ -372,7 +372,7 @@ static inline __printf(1, 2) int ksft_exit_fail_msg(const char *msg, ...) exit(KSFT_FAIL); } -static inline void ksft_exit_fail_perror(const char *msg) +static inline __noreturn void ksft_exit_fail_perror(const char *msg) { #ifndef NOLIBC ksft_exit_fail_msg("%s: %s (%d)\n", msg, strerror(errno), errno); -- 2.39.2
On 4/15/24 09:41, Nathan Chancellor wrote:
On Sun, Apr 14, 2024 at 11:26:53AM +0500, Muhammad Usama Anjum wrote:
Let the compilers (clang) know that this function would just call exit() and would never return. It is needed to avoid false positive static analysis errors. All similar functions calling exit() unconditionally have been marked as __noreturn.
Signed-off-by: Muhammad Usama Anjum usama.anjum@collabora.com
Reviewed-by: Nathan Chancellor nathan@kernel.org
Thank you both. Applied to linux-kselftest next for Linux 6.10-rc1.
thanks, -- Shuah
linux-kselftest-mirror@lists.linaro.org
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Muhammad Usama Anjum -
Nathan Chancellor -
Shuah Khan