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| author | Will Deacon <will.deacon@arm.com> | 2013-11-06 21:20:22 +0400 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2013-12-19 21:43:06 +0400 |
| commit | 12a0ef7b0ac38677bd2d85f33df5ca0a57868819 (patch) | |
| tree | 59b4be2d48b136aac65c7201a975a9463917e020 /arch/arm64/lib/Makefile | |
| parent | 7158627686f02319c50c8d9d78f75d4c8d126ff2 (diff) | |
| download | linux-12a0ef7b0ac38677bd2d85f33df5ca0a57868819.tar.xz | |
arm64: use generic strnlen_user and strncpy_from_user functions
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>
Diffstat (limited to 'arch/arm64/lib/Makefile')
| -rw-r--r-- | arch/arm64/lib/Makefile | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/arch/arm64/lib/Makefile b/arch/arm64/lib/Makefile index 59acc0ef0462..328ce1a99daa 100644 --- a/arch/arm64/lib/Makefile +++ b/arch/arm64/lib/Makefile @@ -1,6 +1,4 @@ -lib-y := bitops.o delay.o \ - strncpy_from_user.o strnlen_user.o clear_user.o \ - copy_from_user.o copy_to_user.o copy_in_user.o \ - copy_page.o clear_page.o \ - memchr.o memcpy.o memmove.o memset.o \ +lib-y := bitops.o clear_user.o delay.o copy_from_user.o \ + copy_to_user.o copy_in_user.o copy_page.o \ + clear_page.o memchr.o memcpy.o memmove.o memset.o \ strchr.o strrchr.o |