diff options
| author | Heiko Carstens <hca@linux.ibm.com> | 2024-02-03 11:45:21 +0100 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2024-02-16 14:30:17 +0100 |
| commit | 3a74f44de2c901e1536d227d29257cae1a6ed18f (patch) | |
| tree | 3ddf7dc168688604eca4d9dfa146fca65f7bb9d2 /arch/s390/kernel/ipl.c | |
| parent | 4ce69fcf17d067112f754414aa563e0cd74cc49d (diff) | |
s390/checksum: provide and use cksm() inline assembly
Convert those callers of csum_partial() to use the cksm instruction,
which are either very early or in critical paths, like panic/dump, so
they don't have to rely on a working kernel infrastructure, which will
be introduced with a subsequent patch.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390/kernel/ipl.c')
| -rw-r--r-- | arch/s390/kernel/ipl.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c index ba75f6bee774..1486350a4177 100644 --- a/arch/s390/kernel/ipl.c +++ b/arch/s390/kernel/ipl.c @@ -1941,8 +1941,7 @@ static void dump_reipl_run(struct shutdown_trigger *trigger) reipl_type == IPL_TYPE_UNKNOWN) os_info_flags |= OS_INFO_FLAG_REIPL_CLEAR; os_info_entry_add(OS_INFO_FLAGS_ENTRY, &os_info_flags, sizeof(os_info_flags)); - csum = (__force unsigned int) - csum_partial(reipl_block_actual, reipl_block_actual->hdr.len, 0); + csum = (__force unsigned int)cksm(reipl_block_actual, reipl_block_actual->hdr.len, 0); abs_lc = get_abs_lowcore(); abs_lc->ipib = __pa(reipl_block_actual); abs_lc->ipib_checksum = csum; |