Pre-slice input.

klauspost · Nov 15, 2018 · 278ba25 · 278ba25
1 parent 454fd91
commit 278ba25
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/reedsolomon.go b/reedsolomon.go
@@ -471,12 +471,12 @@ func (r reedSolomon) codeSomeShardsP(matrixRows, inputs, outputs [][]byte, outpu
 		wg.Add(1)
 		go func(start, stop int) {
 			for c := 0; c < r.DataShards; c++ {
-				in := inputs[c]
+				in := inputs[c][start:stop]
 				for iRow := 0; iRow < outputCount; iRow++ {
 					if c == 0 {
-						galMulSlice(matrixRows[iRow][c], in[start:stop], outputs[iRow][start:stop], r.o.useSSSE3, r.o.useAVX2)
+						galMulSlice(matrixRows[iRow][c], in, outputs[iRow][start:stop], r.o.useSSSE3, r.o.useAVX2)
 					} else {
-						galMulSliceXor(matrixRows[iRow][c], in[start:stop], outputs[iRow][start:stop], r.o.useSSSE3, r.o.useAVX2)
+						galMulSliceXor(matrixRows[iRow][c], in, outputs[iRow][start:stop], r.o.useSSSE3, r.o.useAVX2)
 					}
 				}
 			}