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| author |   Alexander Gordeev <agordeev@linux.ibm.com> | 2022-03-17 15:03:03 +0100 |
|---|---|---|
| committer |   Vasily Gorbik <gor@linux.ibm.com> | 2022-03-27 22:18:39 +0200 |
| commit | ed0192bc644f3553d64a5cb461bdd0b1fbae3fdf (patch) | |
| tree | 68c6c09a3732b8b580974bcd070951de8354e28c /arch/s390/kernel/os_info.c | |
| parent | s390/smp: cleanup control register update routines (diff) | |
| download | linux-dev-ed0192bc644f3553d64a5cb461bdd0b1fbae3fdf.tar.xz linux-dev-ed0192bc644f3553d64a5cb461bdd0b1fbae3fdf.zip | |
s390/maccess: rework absolute lowcore accessors
Macro mem_assign_absolute() is able to access the whole memory, but
is only used and makes sense when updating the absolute lowcore.
Instead, introduce get_abs_lowcore() and put_abs_lowcore() macros
that limit access to absolute lowcore addresses only.
Suggested-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/kernel/os_info.c')
| -rw-r--r-- | arch/s390/kernel/os_info.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kernel/os_info.c b/arch/s390/kernel/os_info.c index 6b5b64e67eee..1acc2e05d70f 100644 --- a/arch/s390/kernel/os_info.c +++ b/arch/s390/kernel/os_info.c @@ -63,7 +63,7 @@ void __init os_info_init(void) os_info.version_minor = OS_INFO_VERSION_MINOR; os_info.magic = OS_INFO_MAGIC; os_info.csum = os_info_csum(&os_info); - mem_assign_absolute(S390_lowcore.os_info, __pa(ptr)); + put_abs_lowcore(os_info, __pa(ptr)); } #ifdef CONFIG_CRASH_DUMP |