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12a0ef7b0a
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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.. | ||
boot | ||
configs | ||
include | ||
kernel | ||
kvm | ||
lib | ||
mm | ||
xen | ||
Kconfig | ||
Kconfig.debug | ||
Makefile |