Merge tag 'microblaze-3.15-rc1' of git://git.monstr.eu/linux-2.6-microblaze

[firefly-linux-kernel-4.4.55.git] / arch / arm / lib / memset.S

diff --git a/arch/arm/lib/memset.S b/arch/arm/lib/memset.S
index d912e7397ecc94a190a132b649f667b94774c1b9..94b0650ea98fd42492c280d20c7610382a2f4a81 100644 (file)
--- 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)