crypto: rockchip - remove non-aligned handling

Now driver have fallback for un-aligned cases, remove all code handling
those cases.

Fixes: ce0183cb6464b ("crypto: rockchip - switch to skcipher API")
Reviewed-by: John Keeping <john@metanate.com>
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 16 insertions, 53 deletions

diff --git a/drivers/crypto/rockchip/rk3288_crypto.c b/drivers/crypto/rockchip/rk3288_crypto.c
index 4cff49b82983..b3db096e2ec2 100644
--- a/drivers/crypto/rockchip/rk3288_crypto.c
+++ b/drivers/crypto/rockchip/rk3288_crypto.c
@@ -88,63 +88,26 @@ static int rk_load_data(struct rk_crypto_info *dev,
 {
 	unsigned int count;
 
-	dev->aligned = dev->aligned ?
-		check_alignment(sg_src, sg_dst, dev->align_size) :
-		dev->aligned;
-	if (dev->aligned) {
-		count = min(dev->left_bytes, sg_src->length);
-		dev->left_bytes -= count;
-
-		if (!dma_map_sg(dev->dev, sg_src, 1, DMA_TO_DEVICE)) {
-			dev_err(dev->dev, "[%s:%d] dma_map_sg(src)  error\n",
+	count = min(dev->left_bytes, sg_src->length);
+	dev->left_bytes -= count;
+
+	if (!dma_map_sg(dev->dev, sg_src, 1, DMA_TO_DEVICE)) {
+		dev_err(dev->dev, "[%s:%d] dma_map_sg(src)  error\n",
 				__func__, __LINE__);
-			return -EINVAL;
-		}
-		dev->addr_in = sg_dma_address(sg_src);
+		return -EINVAL;
+	}
+	dev->addr_in = sg_dma_address(sg_src);
 
-		if (sg_dst) {
-			if (!dma_map_sg(dev->dev, sg_dst, 1, DMA_FROM_DEVICE)) {
-				dev_err(dev->dev,
+	if (sg_dst) {
+		if (!dma_map_sg(dev->dev, sg_dst, 1, DMA_FROM_DEVICE)) {
+			dev_err(dev->dev,
 					"[%s:%d] dma_map_sg(dst)  error\n",
 					__func__, __LINE__);
-				dma_unmap_sg(dev->dev, sg_src, 1,
-					     DMA_TO_DEVICE);
-				return -EINVAL;
-			}
-			dev->addr_out = sg_dma_address(sg_dst);
-		}
-	} else {
-		count = (dev->left_bytes > PAGE_SIZE) ?
-			PAGE_SIZE : dev->left_bytes;
-
-		if (!sg_pcopy_to_buffer(dev->first, dev->src_nents,
-					dev->addr_vir, count,
-					dev->total - dev->left_bytes)) {
-			dev_err(dev->dev, "[%s:%d] pcopy err\n",
-				__func__, __LINE__);
+			dma_unmap_sg(dev->dev, sg_src, 1,
+					DMA_TO_DEVICE);
 			return -EINVAL;
 		}
-		dev->left_bytes -= count;
-		sg_init_one(&dev->sg_tmp, dev->addr_vir, count);
-		if (!dma_map_sg(dev->dev, &dev->sg_tmp, 1, DMA_TO_DEVICE)) {
-			dev_err(dev->dev, "[%s:%d] dma_map_sg(sg_tmp)  error\n",
-				__func__, __LINE__);
-			return -ENOMEM;
-		}
-		dev->addr_in = sg_dma_address(&dev->sg_tmp);
-
-		if (sg_dst) {
-			if (!dma_map_sg(dev->dev, &dev->sg_tmp, 1,
-					DMA_FROM_DEVICE)) {
-				dev_err(dev->dev,
-					"[%s:%d] dma_map_sg(sg_tmp)  error\n",
-					__func__, __LINE__);
-				dma_unmap_sg(dev->dev, &dev->sg_tmp, 1,
-					     DMA_TO_DEVICE);
-				return -ENOMEM;
-			}
-			dev->addr_out = sg_dma_address(&dev->sg_tmp);
-		}
+		dev->addr_out = sg_dma_address(sg_dst);
 	}
 	dev->count = count;
 	return 0;
@@ -154,11 +117,11 @@ static void rk_unload_data(struct rk_crypto_info *dev)
 {
 	struct scatterlist *sg_in, *sg_out;
 
-	sg_in = dev->aligned ? dev->sg_src : &dev->sg_tmp;
+	sg_in = dev->sg_src;
 	dma_unmap_sg(dev->dev, sg_in, 1, DMA_TO_DEVICE);
 
 	if (dev->sg_dst) {
-		sg_out = dev->aligned ? dev->sg_dst : &dev->sg_tmp;
+		sg_out = dev->sg_dst;
 		dma_unmap_sg(dev->dev, sg_out, 1, DMA_FROM_DEVICE);
 	}
 }