s390/bitops: make bitops only work on longs

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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>

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This commit is contained in:

Heiko Carstens 2021-04-06 20:12:16 +02:00

parent 17a363dcd2

commit 6000b5f403

1 changed files with 47 additions and 46 deletions

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arch/s390/include/asm/bitops.h

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