The patch titled
Subject: selftests: mm: fix undeclared function error
has been added to the -mm mm-hotfixes-unstable branch. Its filename is
selftests-harness-remove-use-of-line_max-fix-fix-fix.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/selftests-harness-remove-use-of-line_max-fix-fix-fix.patch
This patch will later appear in the mm-hotfixes-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Muhammad Usama Anjum <usama.anjum@xxxxxxxxxxxxx>
Subject: selftests: mm: fix undeclared function error
Date: Wed, 17 Apr 2024 12:55:30 +0500
Fix the error reported by clang:
In file included from mdwe_test.c:17:
/../kselftest_harness.h:1169:2: error: call to undeclared function
'asprintf'; ISO C99 and later do not support implicit function
declarations [-Wimplicit-function-declaration]
1169 | asprintf(&test_name, "%s%s%s.%s", f->name,
| ^
1 warning generated.
The gcc reports it as warning:
In file included from mdwe_test.c:17:
./kselftest_harness.h: In function `__run_test':
./kselftest_harness.h:1169:9: warning: implicit declaration of function
`asprintf'; did you mean `vsprintf'? [-Wimplicit-function-declaration]
1169 | asprintf(&test_name, "%s%s%s.%s", f->name,
| ^~~~~~~~
| vsprintf
Fix this by setting _GNU_SOURCE macro needed to get exposure to the
asprintf().
Link: https://lkml.kernel.org/r/20240417075530.3807625-1-usama.anjum@xxxxxxxxxxxxx
Signed-off-by: Muhammad Usama Anjum <usama.anjum@xxxxxxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxxxxxx>
Cc: Axel Rasmussen <axelrasmussen@xxxxxxxxxx>
Cc: Bill Wendling <morbo@xxxxxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Cc: Edward Liaw <edliaw@xxxxxxxxxx>
Cc: Justin Stitt <justinstitt@xxxxxxxxxx>
Cc: Kees Cook <keescook@xxxxxxxxxxxx>
Cc: "Mike Rapoport (IBM)" <rppt@xxxxxxxxxx>
Cc: Nathan Chancellor <nathan@xxxxxxxxxx>
Cc: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
Cc: Peter Xu <peterx@xxxxxxxxxx>
Cc: Shuah Khan <shuah@xxxxxxxxxx>
Cc: Will Drewry <wad@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/mm/mdwe_test.c | 1 +
1 file changed, 1 insertion(+)
--- a/tools/testing/selftests/mm/mdwe_test.c~selftests-harness-remove-use-of-line_max-fix-fix-fix
+++ a/tools/testing/selftests/mm/mdwe_test.c
@@ -7,6 +7,7 @@
#include <linux/mman.h>
#include <linux/prctl.h>
+#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <sys/auxv.h>
_
Patches currently in -mm which might be from usama.anjum@xxxxxxxxxxxxx are
selftests-harness-remove-use-of-line_max-fix-fix-fix.patch
selftests-mm-fix-unused-and-uninitialized-variable-warning.patch
selftests-exec-make-binaries-position-independent.patch
