diff options
author | Olof Johansson <olof@lixom.net> | 2013-04-02 18:33:58 -0700 |
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committer | Olof Johansson <olof@lixom.net> | 2013-04-02 18:33:58 -0700 |
commit | 06b851e58b73a268f8092c2d990f697b2e7c53bd (patch) | |
tree | a44e10462a39202b60636f8b102376a9c69169c1 /arch/arm/lib/memset.S | |
parent | 5f03dc2002f5dc85ce87e69caff7f28f17f5c9b2 (diff) | |
parent | 17e7979f83c1de305fa81efb0aa7a3a56bd8121c (diff) |
Merge branch 'lpc32xx/defconfig' of git://git.antcom.de/linux-2.6 into next/soc
* 'lpc32xx/defconfig' of git://git.antcom.de/linux-2.6: (604 commits)
ARM: LPC32xx: defconfig update: Cleanup (EXPERIMENTAL)
ARM: LPC32xx: defconfig update: Remove the museum NAND option
ARM: LPC32xx: defconfig update: Default drivers and cleanup
ARM: LPC32xx: defconfig update: gpio and keys
+ Linux 3.9-rc4
Signed-off-by: Olof Johansson <olof@lixom.net>
Conflicts:
arch/arm/Kconfig
Diffstat (limited to 'arch/arm/lib/memset.S')
-rw-r--r-- | arch/arm/lib/memset.S | 33 |
1 files changed, 13 insertions, 20 deletions
diff --git a/arch/arm/lib/memset.S b/arch/arm/lib/memset.S index d912e7397ec..94b0650ea98 100644 --- a/arch/arm/lib/memset.S +++ b/arch/arm/lib/memset.S @@ -14,31 +14,15 @@ .text .align 5 - .word 0 - -1: subs r2, r2, #4 @ 1 do we have enough - blt 5f @ 1 bytes to align with? - cmp r3, #2 @ 1 - strltb r1, [ip], #1 @ 1 - strleb r1, [ip], #1 @ 1 - strb r1, [ip], #1 @ 1 - add r2, r2, r3 @ 1 (r2 = r2 - (4 - r3)) -/* - * The pointer is now aligned and the length is adjusted. Try doing the - * memset again. - */ ENTRY(memset) -/* - * Preserve the contents of r0 for the return value. - */ - mov ip, r0 - ands r3, ip, #3 @ 1 unaligned? - bne 1b @ 1 + ands r3, r0, #3 @ 1 unaligned? + mov ip, r0 @ preserve r0 as return value + bne 6f @ 1 /* * we know that the pointer in ip is aligned to a word boundary. */ - orr r1, r1, r1, lsl #8 +1: orr r1, r1, r1, lsl #8 orr r1, r1, r1, lsl #16 mov r3, r1 cmp r2, #16 @@ -127,4 +111,13 @@ ENTRY(memset) tst r2, #1 strneb r1, [ip], #1 mov pc, lr + +6: subs r2, r2, #4 @ 1 do we have enough + blt 5b @ 1 bytes to align with? + cmp r3, #2 @ 1 + strltb r1, [ip], #1 @ 1 + strleb r1, [ip], #1 @ 1 + strb r1, [ip], #1 @ 1 + add r2, r2, r3 @ 1 (r2 = r2 - (4 - r3)) + b 1b ENDPROC(memset) |