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[PARISC] update parisc to use generic strncpy_from_user()

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Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
James Bottomley
2012-05-26 09:48:19 +01:00
parent 8275b91aad
commit b1195c0e3e
4 changed files with 3 additions and 45 deletions
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41
arch/parisc/lib/lusercopy.S
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@@ -60,47 +60,6 @@
bv %r0(%r1)
.endm
/*
* long lstrncpy_from_user(char *dst, const char *src, long n)
*
* Returns -EFAULT if exception before terminator,
* N if the entire buffer filled,
* otherwise strlen (i.e. excludes zero byte)
*/
ENTRY(lstrncpy_from_user)
.proc
.callinfo NO_CALLS
.entry
comib,= 0,%r24,$lsfu_done
copy %r24,%r23
get_sr
1: ldbs,ma 1(%sr1,%r25),%r1
$lsfu_loop:
stbs,ma %r1,1(%r26)
comib,=,n 0,%r1,$lsfu_done
addib,<>,n -1,%r24,$lsfu_loop
2: ldbs,ma 1(%sr1,%r25),%r1
$lsfu_done:
sub %r23,%r24,%r28
$lsfu_exit:
bv %r0(%r2)
nop
.exit
ENDPROC(lstrncpy_from_user)
.section .fixup,"ax"
3: fixup_branch $lsfu_exit
ldi -EFAULT,%r28
.previous
.section __ex_table,"aw"
ASM_ULONG_INSN 1b,3b
ASM_ULONG_INSN 2b,3b
.previous
.procend
/*
* unsigned long lclear_user(void *to, unsigned long n)
*