This patch implements the word-at-a-time interface for arm64 using the same algorithm as ARM. We use the fls64 macro, which expands to a clz instruction via a compiler builtin. Big-endian configurations make use of the implementation from asm-generic. With this implemented, we can replace our byte-at-a-time strnlen_user and strncpy_from_user functions with the optimised generic versions. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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.. | ||
Makefile | ||
bitops.S | ||
clear_page.S | ||
clear_user.S | ||
copy_from_user.S | ||
copy_in_user.S | ||
copy_page.S | ||
copy_to_user.S | ||
delay.c | ||
memchr.S | ||
memcpy.S | ||
memmove.S | ||
memset.S | ||
strchr.S | ||
strrchr.S |