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| author | Heiko Carstens <hca@linux.ibm.com> | 2026-10-12 13:42:48 +0200 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2026-10-13 17:08:21 +0200 |
| commit | 5af4c564803cd080361e9b99593c9cd6552cb73e (patch) | |
| tree | 1076af4f53da3b372782482f4f1b0a78b91f0515 /tools/lib/python | |
| parent | 3681abf4bfa29983ff6ff6a0f6b6e411d58337d4 (diff) | |
| download | linux-next-5af4c564803cd080361e9b99593c9cd6552cb73e.tar.gz linux-next-5af4c564803cd080361e9b99593c9cd6552cb73e.zip | |
s390/percpu: Drop unused output register from arch_this_cpu_to_op()
The lan/lang/lao/laog instructions return the old memory content, but
arch_this_cpu_to_op() does not need it. Instead of allocating a dedicated
output register old__ just to discard the returned value, change the
val__ constraint from "d" to "+&d" so it is used as input/output
register.
This reduces register pressure.
Acked-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'tools/lib/python')
0 files changed, 0 insertions, 0 deletions