s390: add optimized array_index_mask_nospec

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[ Upstream commit e2dd833389 ]

Add an optimized version of the array_index_mask_nospec function for
s390 based on a compare and a subtract with borrow.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Martin Schwidefsky 2018-04-27 07:36:29 +02:00 • committed by Greg Kroah-Hartman

parent 2ae8b68382

commit 2ae89b86a7

1 changed files with 24 additions and 0 deletions

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arch/s390/include/asm/barrier.h

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