Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c50e19f49830fb651b4b702ad2c3abcdf110b576
Commit: c50e19f49830fb651b4b702ad2c3abcdf110b576
Parent: a5bb85dfffd38714d83cf7798886462d7314b90a
Author: Yi Li <[EMAIL PROTECTED]>
AuthorDate: Fri Dec 21 21:12:21 2007 +0800
Committer: Bryan Wu <[EMAIL PROTECTED]>
CommitDate: Fri Dec 21 21:12:21 2007 +0800
[Blackfin] arch: fix bug - make memcpy return the dest addr.
The memcpy() function returns the src pointer instead of the dst pointer.
This patch fix this bug.
Signed-off-by: Yi Li <[EMAIL PROTECTED]>
Signed-off-by: Bryan Wu <[EMAIL PROTECTED]>
---
arch/blackfin/lib/memcpy.S | 8 ++------
1 files changed, 2 insertions(+), 6 deletions(-)
diff --git a/arch/blackfin/lib/memcpy.S b/arch/blackfin/lib/memcpy.S
index 2e63364..e654a18 100644
--- a/arch/blackfin/lib/memcpy.S
+++ b/arch/blackfin/lib/memcpy.S
@@ -70,8 +70,8 @@ ENTRY(_memcpy)
/* Check for aligned data.*/
R3 = R1 | R0;
- R0 = 0x3;
- R3 = R3 & R0;
+ R1 = 0x3;
+ R3 = R3 & R1;
CC = R3; /* low bits set on either address? */
IF CC JUMP .Lnot_aligned;
@@ -83,7 +83,6 @@ ENTRY(_memcpy)
/* less than eight bytes... */
P2 = R2;
LSETUP(.Lthree_start, .Lthree_end) LC0=P2;
- R0 = R1; /* setup src address for return */
.Lthree_start:
R3 = B[P1++] (X);
.Lthree_end:
@@ -95,7 +94,6 @@ ENTRY(_memcpy)
/* There's at least eight bytes to copy. */
P2 += -1; /* because we unroll one iteration */
LSETUP(.Lword_loops, .Lword_loope) LC0=P2;
- R0 = R1;
I1 = P1;
R3 = [I1++];
#if ANOMALY_05000202
@@ -120,7 +118,6 @@ ENTRY(_memcpy)
.Lnot_aligned:
/* From here, we're copying byte-by-byte. */
LSETUP (.Lbyte_start, .Lbyte_end) LC0=P2;
- R0 = R1; /* Save src address for return */
.Lbyte_start:
R1 = B[P1++] (X);
.Lbyte_end:
@@ -135,7 +132,6 @@ ENTRY(_memcpy)
* Don't bother to work out alignment for
* the reverse case.
*/
- R0 = R1; /* save src for later. */
P0 = P0 + P2;
P0 += -1;
P1 = P1 + P2;
-
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