-stable review patch. If anyone has any objections, please let us know.
------------------
From: Ivan Kokshaysky <[email protected]>
[PATCH] Alpha: strncpy() fix
As it turned out after recent SCSI changes, strncpy() was broken -
it mixed up the return values from __stxncpy() in registers $24 and $27.
Thanks to Mathieu Chouquet-Stringer for tracking down the problem
and providing an excellent test case.
Signed-off-by: Ivan Kokshaysky <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/alpha/lib/strncpy.S | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- linux-2.6.16.11.orig/arch/alpha/lib/strncpy.S
+++ linux-2.6.16.11/arch/alpha/lib/strncpy.S
@@ -43,8 +43,8 @@ strncpy:
.align 4
$multiword:
- subq $24, 1, $2 # clear the final bits in the prev word
- or $2, $24, $2
+ subq $27, 1, $2 # clear the final bits in the prev word
+ or $2, $27, $2
zapnot $1, $2, $1
subq $18, 1, $18
@@ -70,8 +70,8 @@ $multiword:
bne $18, 0b
1: ldq_u $1, 0($16) # clear the leading bits in the final word
- subq $27, 1, $2
- or $2, $27, $2
+ subq $24, 1, $2
+ or $2, $24, $2
zap $1, $2, $1
stq_u $1, 0($16)
--
-
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