MIPS: IP checksums: Remove unncessary folding of sum to 16 bit.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/lib/csum_partial.S b/arch/mips/lib/csum_partial.S
index edac989..201d82e 100644 (file)
--- a/arch/mips/lib/csum_partial.S
+++ b/arch/mips/lib/csum_partial.S
@@ -276,11 +276,6 @@ LEAF(csum_partial)
        dsra32  sum, sum, 0
        addu    sum, v1
 #endif
-       sll     v1, sum, 16
-       addu    sum, v1
-       sltu    v1, sum, v1
-       srl     sum, sum, 16
-       addu    sum, v1
 
        /* odd buffer alignment? */
        beqz    t7, 1f
@@ -678,11 +673,6 @@ EXC(       sb      t0, NBYTES-2(dst), .Ls_exc)
        dsra32  sum, sum, 0
        addu    sum, v1
 #endif
-       sll     v1, sum, 16
-       addu    sum, v1
-       sltu    v1, sum, v1
-       srl     sum, sum, 16
-       addu    sum, v1
 
        /* odd buffer alignment? */
        beqz    odd, 1f