powerpc: fix __strnlen_user in merge tree

Change USER/KERNEL_DS so that the merged version of
__strnlen_user can be used which allows us to complete the
removal of arch/ppc64/lib/.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

3 files changed, 0 insertions, 185 deletions

diff --git a/arch/ppc64/Makefile b/arch/ppc64/Makefile
index fdbd6f44adc0..a55a82d145d4 100644
--- a/arch/ppc64/Makefile
+++ b/arch/ppc64/Makefile
@@ -86,7 +86,6 @@ head-y := arch/ppc64/kernel/head.o
 head-y += arch/powerpc/kernel/fpu.o
 head-y += arch/powerpc/kernel/entry_64.o
 
-libs-y                          += arch/ppc64/lib/
 core-y                          += arch/ppc64/kernel/ arch/powerpc/kernel/
 core-y                          += arch/powerpc/mm/
 core-y                          += arch/powerpc/sysdev/
diff --git a/arch/ppc64/lib/Makefile b/arch/ppc64/lib/Makefile
deleted file mode 100644
index 42d5295bf345..000000000000
--- a/arch/ppc64/lib/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-#
-# Makefile for ppc64-specific library files..
-#
-
-lib-y := string.o
diff --git a/arch/ppc64/lib/string.S b/arch/ppc64/lib/string.S
deleted file mode 100644
index e21a0038a4d6..000000000000
--- a/arch/ppc64/lib/string.S
+++ /dev/null
@@ -1,179 +0,0 @@
-/*
- * String handling functions for PowerPC.
- *
- * Copyright (C) 1996 Paul Mackerras.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include <asm/processor.h>
-#include <asm/errno.h>
-#include <asm/ppc_asm.h>
-
-_GLOBAL(strcpy)
-        addi    r5,r3,-1
-        addi    r4,r4,-1
-1:      lbzu    r0,1(r4)
-        cmpwi   0,r0,0
-        stbu    r0,1(r5)
-        bne     1b
-        blr
-
-_GLOBAL(strncpy)
-        cmpwi   0,r5,0
-        beqlr
-        mtctr   r5
-        addi    r6,r3,-1
-        addi    r4,r4,-1
-1:      lbzu    r0,1(r4)
-        cmpwi   0,r0,0
-        stbu    r0,1(r6)
-        bdnzf   2,1b            /* dec ctr, branch if ctr != 0 && !cr0.eq */
-        blr
-
-_GLOBAL(strcat)
-        addi    r5,r3,-1
-        addi    r4,r4,-1
-1:      lbzu    r0,1(r5)
-        cmpwi   0,r0,0
-        bne     1b
-        addi    r5,r5,-1
-1:      lbzu    r0,1(r4)
-        cmpwi   0,r0,0
-        stbu    r0,1(r5)
-        bne     1b
-        blr
-
-_GLOBAL(strcmp)
-        addi    r5,r3,-1
-        addi    r4,r4,-1
-1:      lbzu    r3,1(r5)
-        cmpwi   1,r3,0
-        lbzu    r0,1(r4)
-        subf.   r3,r0,r3
-        beqlr   1
-        beq     1b
-        blr
-
-_GLOBAL(strlen)
-        addi    r4,r3,-1
-1:      lbzu    r0,1(r4)
-        cmpwi   0,r0,0
-        bne     1b
-        subf    r3,r3,r4
-        blr
-
-_GLOBAL(memcmp)
-        cmpwi   0,r5,0
-        ble-    2f
-        mtctr   r5
-        addi    r6,r3,-1
-        addi    r4,r4,-1
-1:      lbzu    r3,1(r6)
-        lbzu    r0,1(r4)
-        subf.   r3,r0,r3
-        bdnzt   2,1b
-        blr
-2:      li      r3,0
-        blr
-
-_GLOBAL(memchr)
-        cmpwi   0,r5,0
-        ble-    2f
-        mtctr   r5
-        addi    r3,r3,-1
-1:      lbzu    r0,1(r3)
-        cmpw    0,r0,r4
-        bdnzf   2,1b
-        beqlr
-2:      li      r3,0
-        blr
-
-_GLOBAL(__clear_user)
-        addi    r6,r3,-4
-        li      r3,0
-        li      r5,0
-        cmplwi  0,r4,4
-        blt     7f
-        /* clear a single word */
-11:     stwu    r5,4(r6)
-        beqlr
-        /* clear word sized chunks */
-        andi.   r0,r6,3
-        add     r4,r0,r4
-        subf    r6,r0,r6
-        srwi    r0,r4,2
-        andi.   r4,r4,3
-        mtctr   r0
-        bdz     7f
-1:      stwu    r5,4(r6)
-        bdnz    1b
-        /* clear byte sized chunks */
-7:      cmpwi   0,r4,0
-        beqlr
-        mtctr   r4
-        addi    r6,r6,3
-8:      stbu    r5,1(r6)
-        bdnz    8b
-        blr
-90:     mr      r3,r4
-        blr
-91:     mfctr   r3
-        slwi    r3,r3,2
-        add     r3,r3,r4
-        blr
-92:     mfctr   r3
-        blr
-
-        .section __ex_table,"a"
-        .align  3
-        .llong  11b,90b
-        .llong  1b,91b
-        .llong  8b,92b
-        .text
-
-/* r3 = dst, r4 = src, r5 = count */
-_GLOBAL(__strncpy_from_user)
-        addi    r6,r3,-1
-        addi    r4,r4,-1
-        cmpwi   0,r5,0
-        beq     2f
-        mtctr   r5
-1:      lbzu    r0,1(r4)
-        cmpwi   0,r0,0
-        stbu    r0,1(r6)
-        bdnzf   2,1b            /* dec ctr, branch if ctr != 0 && !cr0.eq */
-        beq     3f
-2:      addi    r6,r6,1
-3:      subf    r3,r3,r6
-        blr
-99:     li      r3,-EFAULT
-        blr
-
-        .section __ex_table,"a"
-        .align  3
-        .llong  1b,99b
-        .text
-
-/* r3 = str, r4 = len (> 0) */
-_GLOBAL(__strnlen_user)
-        addi    r7,r3,-1
-        mtctr   r4              /* ctr = len */
-1:      lbzu    r0,1(r7)        /* get next byte */
-        cmpwi   0,r0,0
-        bdnzf   2,1b            /* loop if --ctr != 0 && byte != 0 */
-        addi    r7,r7,1
-        subf    r3,r3,r7        /* number of bytes we have looked at */
-        beqlr                   /* return if we found a 0 byte */
-        cmpw    0,r3,r4         /* did we look at all len bytes? */
-        blt     99f             /* if not, must have hit top */
-        addi    r3,r4,1         /* return len + 1 to indicate no null found */
-        blr
-99:     li      r3,0            /* bad address, return 0 */
-        blr
-
-        .section __ex_table,"a"
-        .align  3
-        .llong  1b,99b