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(parent: 17a363d) | patch
s390/bitops: make bitops only work on longs
authorHeiko Carstens <hca@linux.ibm.com>
Tue, 6 Apr 2021 18:12:16 +0000 (20:12 +0200)
committerHeiko Carstens <hca@linux.ibm.com>
Mon, 12 Apr 2021 10:46:42 +0000 (12:46 +0200)
commit6000b5f4032e9be5413dcfcdd9e39eb1c9cc2453
treee16827e96125090997a8be11dbac757400b387e1tree | snapshot
parent17a363dcd2f7455d8661a7b2f9ba7cfb85bbc7e4commit | diff
s390/bitops: make bitops only work on longs

The bitops code was optimized to generate test under mask instructions
with the __bitops_byte() helper. However that was many years ago and
in the meantime a lot of new instructions were introduced.

Changing the code so that it always operates on longs nowadays even
generates shorter code (~ -20kb, defconfig, gcc 10, march=zE12).

Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
arch/s390/include/asm/bitops.h diff | blob | history
Domain: System / Kernel;