The patch titled
Subject: kselftests: mm: fix wrong __NR_userfaultfd value
has been added to the -mm mm-hotfixes-unstable branch. Its filename is
kselftests-mm-fix-wrong-__nr_userfaultfd-value.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/kselftests-mm-fix-wrong-__nr_userfaultfd-value.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: kselftests: mm: fix wrong __NR_userfaultfd value
Date: Mon, 23 Sep 2024 10:38:36 +0500
grep -rnIF "#define __NR_userfaultfd"
tools/include/uapi/asm-generic/unistd.h:681:#define __NR_userfaultfd 282
arch/x86/include/generated/uapi/asm/unistd_32.h:374:#define
__NR_userfaultfd 374
arch/x86/include/generated/uapi/asm/unistd_64.h:327:#define
__NR_userfaultfd 323
arch/x86/include/generated/uapi/asm/unistd_x32.h:282:#define
__NR_userfaultfd (__X32_SYSCALL_BIT + 323)
arch/arm/include/generated/uapi/asm/unistd-eabi.h:347:#define
__NR_userfaultfd (__NR_SYSCALL_BASE + 388)
arch/arm/include/generated/uapi/asm/unistd-oabi.h:359:#define
__NR_userfaultfd (__NR_SYSCALL_BASE + 388)
include/uapi/asm-generic/unistd.h:681:#define __NR_userfaultfd 282
The number is dependent on the architecture. The above data shows that:
x86 374
x86_64 323
The value of __NR_userfaultfd was changed to 282 when asm-generic/unistd.h
was included. It makes the test to fail every time as the correct number
of this syscall on x86_64 is 323. Fix the header to asm/unistd.h.
Link: https://lkml.kernel.org/r/20240923053836.3270393-1-usama.anjum@xxxxxxxxxxxxx
Fixes: a5c6bc590094 ("selftests/mm: remove local __NR_* definitions")
Signed-off-by: Muhammad Usama Anjum <usama.anjum@xxxxxxxxxxxxx>
Reviewed-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Cc: John Hubbard <jhubbard@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/mm/pagemap_ioctl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/tools/testing/selftests/mm/pagemap_ioctl.c~kselftests-mm-fix-wrong-__nr_userfaultfd-value
+++ a/tools/testing/selftests/mm/pagemap_ioctl.c
@@ -15,7 +15,7 @@
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <math.h>
-#include <asm-generic/unistd.h>
+#include <asm/unistd.h>
#include <pthread.h>
#include <sys/resource.h>
#include <assert.h>
_
Patches currently in -mm which might be from usama.anjum@xxxxxxxxxxxxx are
kselftests-mm-fix-wrong-__nr_userfaultfd-value.patch
