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-rw-r--r--arch/alpha/lib/copy_user.S16
-rw-r--r--arch/alpha/lib/ev6-copy_user.S23
2 files changed, 2 insertions, 37 deletions
diff --git a/arch/alpha/lib/copy_user.S b/arch/alpha/lib/copy_user.S
index 6f3fab9eb434..ac9c3766ba8c 100644
--- a/arch/alpha/lib/copy_user.S
+++ b/arch/alpha/lib/copy_user.S
@@ -124,22 +124,8 @@ $65:
bis $31,$31,$0
$41:
$35:
-$exitout:
- ret $31,($28),1
-
$exitin:
- /* A stupid byte-by-byte zeroing of the rest of the output
- buffer. This cures security holes by never leaving
- random kernel data around to be copied elsewhere. */
-
- mov $0,$1
-$101:
- EXO ( ldq_u $2,0($6) )
- subq $1,1,$1
- mskbl $2,$6,$2
- EXO ( stq_u $2,0($6) )
- addq $6,1,$6
- bgt $1,$101
+$exitout:
ret $31,($28),1
.end __copy_user
diff --git a/arch/alpha/lib/ev6-copy_user.S b/arch/alpha/lib/ev6-copy_user.S
index db42ffe9c350..c4d0689c3d26 100644
--- a/arch/alpha/lib/ev6-copy_user.S
+++ b/arch/alpha/lib/ev6-copy_user.S
@@ -227,33 +227,12 @@ $dirtyentry:
bgt $0,$onebyteloop # U .. .. .. : U L U L
$zerolength:
+$exitin:
$exitout: # Destination for exception recovery(?)
nop # .. .. .. E
nop # .. .. E ..
nop # .. E .. ..
ret $31,($28),1 # L0 .. .. .. : L U L U
-$exitin:
-
- /* A stupid byte-by-byte zeroing of the rest of the output
- buffer. This cures security holes by never leaving
- random kernel data around to be copied elsewhere. */
-
- nop
- nop
- nop
- mov $0,$1
-
-$101:
- EXO ( stb $31,0($6) ) # L
- subq $1,1,$1 # E
- addq $6,1,$6 # E
- bgt $1,$101 # U
-
- nop
- nop
- nop
- ret $31,($28),1 # L0
-
.end __copy_user