The patch titled Subject: selftests/mm: include mman header to access MREMAP_DONTUNMAP identifier has been added to the -mm mm-hotfixes-unstable branch. Its filename is selftests-mm-include-mman-header-to-access-mremap_dontunmap-identifier.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/selftests-mm-include-mman-header-to-access-mremap_dontunmap-identifier.patch This patch will later appear in the mm-hotfixes-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Samasth Norway Ananda <samasth.norway.ananda@xxxxxxxxxx> Subject: selftests/mm: include mman header to access MREMAP_DONTUNMAP identifier Date: Thu, 12 Oct 2023 08:52:57 -0700 Definition for MREMAP_DONTUNMAP is not present in glibc older than 2.32 thus throwing an undeclared error when running make on mm. Including linux/mman.h solves the build error for people having older glibc. Link: https://lkml.kernel.org/r/20231012155257.891776-1-samasth.norway.ananda@xxxxxxxxxx Fixes: 0183d777c29a ("selftests: mm: remove duplicate unneeded defines") Signed-off-by: Samasth Norway Ananda <samasth.norway.ananda@xxxxxxxxxx> Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx> Closes: https://lore.kernel.org/linux-mm/CA+G9fYvV-71XqpCr_jhdDfEtN701fBdG3q+=bafaZiGwUXy_aA@xxxxxxxxxxxxxx/ Tested-by: Muhammad Usama Anjum <usama.anjum@xxxxxxxxxxxxx> Cc: Shuah Khan <shuah@xxxxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- tools/testing/selftests/mm/mremap_dontunmap.c | 1 + 1 file changed, 1 insertion(+) --- a/tools/testing/selftests/mm/mremap_dontunmap.c~selftests-mm-include-mman-header-to-access-mremap_dontunmap-identifier +++ a/tools/testing/selftests/mm/mremap_dontunmap.c @@ -7,6 +7,7 @@ */ #define _GNU_SOURCE #include <sys/mman.h> +#include <linux/mman.h> #include <errno.h> #include <stdio.h> #include <stdlib.h> _ Patches currently in -mm which might be from samasth.norway.ananda@xxxxxxxxxx are selftests-mm-include-mman-header-to-access-mremap_dontunmap-identifier.patch