David S. Miller 4efcac3a24 sparc: Optimize strncpy_from_user() zero byte search. ... Compute a mask that will only have 0x80 in the bytes which had a zero in them. The formula is: ~(((x & 0x7f7f7f7f) + 0x7f7f7f7f) | x | 0x7f7f7f7f) In the inner word iteration, we have to compute the "x | 0x7f7f7f7f" part, so we can reuse that in the above calculation. Once we have this mask, we perform divide and conquer to find the highest 0x80 location. Signed-off-by: David S. Miller <davem@davemloft.net>		2012-05-23 19:20:20 -07:00
..
ashldi3.S	sparc: Convert some assembler over to linakge.h's ENTRY/ENDPROC	2012-05-11 20:33:22 -07:00
ashrdi3.S	sparc: Convert some assembler over to linakge.h's ENTRY/ENDPROC	2012-05-11 20:33:22 -07:00
atomic32.c	sparc: Fix __atomic_add_unless() return value.	2011-08-04 02:47:40 -07:00
atomic_64.S	sparc: Convert some assembler over to linakge.h's ENTRY/ENDPROC	2012-05-11 20:33:22 -07:00
bitext.c
bitops.S	sparc: Convert some assembler over to linakge.h's ENTRY/ENDPROC	2012-05-11 20:33:22 -07:00
blockops.S	sparc: Convert some assembler over to linakge.h's ENTRY/ENDPROC	2012-05-11 20:33:22 -07:00
bzero.S	sparc: Convert some assembler over to linakge.h's ENTRY/ENDPROC	2012-05-11 20:33:22 -07:00
checksum_32.S	sparc32: Fixed unaligned memory copying in function __csum_partial_copy_sparc_generic	2011-05-11 21:35:04 -07:00
checksum_64.S
clear_page.S
cmpdi2.c
copy_in_user.S
copy_page.S
copy_user.S
COPYING.LIB
csum_copy_from_user.S
csum_copy_to_user.S
csum_copy.S
divdi3.S	sparc32: Kill off software 32-bit multiply/divide routines.	2012-05-15 11:23:47 -07:00
ffs.S	sparc: Use popc when possible for ffs/__ffs/ffz.	2011-08-02 21:28:53 -07:00
GENbzero.S
GENcopy_from_user.S
GENcopy_to_user.S
GENmemcpy.S
GENpage.S
GENpatch.S
hweight.S	sparc: Use popc if possible for hweight routines.	2011-08-02 21:28:50 -07:00
iomap.c	sparc: switch to GENERIC_PCI_IOMAP	2011-12-04 15:59:49 +02:00
ipcsum.S	sparc: Convert some assembler over to linakge.h's ENTRY/ENDPROC	2012-05-11 20:33:22 -07:00
ksyms.c	sparc: Add full proper error handling to strncpy_from_user().	2012-05-22 23:32:27 -07:00
libgcc.h
locks.S
lshrdi3.S	sparc: Convert some assembler over to linakge.h's ENTRY/ENDPROC	2012-05-11 20:33:22 -07:00
Makefile	sparc: Add full proper error handling to strncpy_from_user().	2012-05-22 23:32:27 -07:00
mcount.S
memcmp.S
memcpy.S	sparc32: Correct the return value of memcpy.	2011-10-20 15:17:23 -07:00
memmove.S	sparc: Convert some assembler over to linakge.h's ENTRY/ENDPROC	2012-05-11 20:33:22 -07:00
memscan_32.S
memscan_64.S
memset.S
muldi3.S	sparc32: Kill off software 32-bit multiply/divide routines.	2012-05-15 11:23:47 -07:00
NG2copy_from_user.S
NG2copy_to_user.S
NG2memcpy.S
NG2patch.S
NGbzero.S
NGcopy_from_user.S
NGcopy_to_user.S
NGmemcpy.S
NGpage.S	sparc: Minor tweaks to Niagara page copy/clear.	2011-08-02 21:28:32 -07:00
NGpatch.S
PeeCeeI.c
strlen_user_32.S
strlen_user_64.S	sparc: Convert some assembler over to linakge.h's ENTRY/ENDPROC	2012-05-11 20:33:22 -07:00
strlen.S
strncmp_32.S	sparc: Convert some assembler over to linakge.h's ENTRY/ENDPROC	2012-05-11 20:33:22 -07:00
strncmp_64.S	sparc: Convert some assembler over to linakge.h's ENTRY/ENDPROC	2012-05-11 20:33:22 -07:00
U1copy_from_user.S
U1copy_to_user.S
U1memcpy.S
U3copy_from_user.S
U3copy_to_user.S
U3memcpy.S
U3patch.S
ucmpdi2.c	sparc32: add ucmpdi2	2012-05-19 15:23:57 -07:00
udivdi3.S	sparc32: Kill off software 32-bit multiply/divide routines.	2012-05-15 11:23:47 -07:00
user_fixup.c
usercopy.c	sparc: Optimize strncpy_from_user() zero byte search.	2012-05-23 19:20:20 -07:00
VISsave.S
xor.S	sparc: Convert some assembler over to linakge.h's ENTRY/ENDPROC	2012-05-11 20:33:22 -07:00