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| author | Chris Metcalf <cmetcalf@ezchip.com> | 2015-04-30 21:12:42 +0200 |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@ezchip.com> | 2015-04-30 21:23:37 +0200 |
| commit | 5bf6c07a1843813d0065feaaecba622d49148d7e (patch) | |
| tree | 18118d48ffe123ce6f6d3eaa67dba135adafbc1a /arch/tile/lib/exports.c | |
| parent | tile: use READ_ONCE() in arch_spin_is_locked() (diff) | |
| download | linux-5bf6c07a1843813d0065feaaecba622d49148d7e.tar.xz linux-5bf6c07a1843813d0065feaaecba622d49148d7e.zip | |
tile: add <asm/word-at-a-time.h> and enable support functions
This change enables the generic strncpy_from_user() and strnlen_user()
using word-at-a-time.h. The tile implementation is trivial since
both tilepro and tilegx have SIMD operations that do byte-wise
comparisons against immediate zero for each byte, and return an
0x01 byte in each position where there is a 0x00 byte.
Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
Diffstat (limited to 'arch/tile/lib/exports.c')
| -rw-r--r-- | arch/tile/lib/exports.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/tile/lib/exports.c b/arch/tile/lib/exports.c index 82733c87d67e..16326f288177 100644 --- a/arch/tile/lib/exports.c +++ b/arch/tile/lib/exports.c @@ -18,8 +18,6 @@ /* arch/tile/lib/usercopy.S */ #include <linux/uaccess.h> -EXPORT_SYMBOL(strnlen_user_asm); -EXPORT_SYMBOL(strncpy_from_user_asm); EXPORT_SYMBOL(clear_user_asm); EXPORT_SYMBOL(flush_user_asm); EXPORT_SYMBOL(finv_user_asm); |