crypto: replace scatterwalk_sg_next with sg_next

Modify crypto drivers to use the generic SG helper since
both of them are equivalent and the one from crypto is redundant.

See also:
  468577abe37ff7b453a9ac613e0ea155349203ae   reverted in
  b2ab4a57b018aafbba35bff088218f5cc3d2142e

Signed-off-by: Cristian Stoica <cristian.stoica@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

11 files changed, 24 insertions, 24 deletions

diff --git a/drivers/crypto/bfin_crc.c b/drivers/crypto/bfin_crc.c
index 33cf9eb87344..d9af9403ab6c 100644
--- a/drivers/crypto/bfin_crc.c
+++ b/drivers/crypto/bfin_crc.c
@@ -110,7 +110,7 @@ static int sg_count(struct scatterlist *sg_list)
 
 	while (!sg_is_last(sg)) {
 		sg_nents++;
-		sg = scatterwalk_sg_next(sg);
+		sg = sg_next(sg);
 	}
 
 	return sg_nents;
diff --git a/drivers/crypto/caam/sg_sw_sec4.h b/drivers/crypto/caam/sg_sw_sec4.h
index ce28a563effc..3b918218aa4c 100644
--- a/drivers/crypto/caam/sg_sw_sec4.h
+++ b/drivers/crypto/caam/sg_sw_sec4.h
@@ -37,7 +37,7 @@ sg_to_sec4_sg(struct scatterlist *sg, int sg_count,
 		dma_to_sec4_sg_one(sec4_sg_ptr, sg_dma_address(sg),
 				   sg_dma_len(sg), offset);
 		sec4_sg_ptr++;
-		sg = scatterwalk_sg_next(sg);
+		sg = sg_next(sg);
 		sg_count--;
 	}
 	return sec4_sg_ptr - 1;
@@ -67,7 +67,7 @@ static inline int __sg_count(struct scatterlist *sg_list, int nbytes,
 		nbytes -= sg->length;
 		if (!sg_is_last(sg) && (sg + 1)->length == 0)
 			*chained = true;
-		sg = scatterwalk_sg_next(sg);
+		sg = sg_next(sg);
 	}
 
 	return sg_nents;
@@ -93,7 +93,7 @@ static int dma_map_sg_chained(struct device *dev, struct scatterlist *sg,
 		int i;
 		for (i = 0; i < nents; i++) {
 			dma_map_sg(dev, sg, 1, dir);
-			sg = scatterwalk_sg_next(sg);
+			sg = sg_next(sg);
 		}
 	} else {
 		dma_map_sg(dev, sg, nents, dir);
@@ -109,7 +109,7 @@ static int dma_unmap_sg_chained(struct device *dev, struct scatterlist *sg,
 		int i;
 		for (i = 0; i < nents; i++) {
 			dma_unmap_sg(dev, sg, 1, dir);
-			sg = scatterwalk_sg_next(sg);
+			sg = sg_next(sg);
 		}
 	} else {
 		dma_unmap_sg(dev, sg, nents, dir);
diff --git a/drivers/crypto/ixp4xx_crypto.c b/drivers/crypto/ixp4xx_crypto.c
index f757a0f428bd..48f453555f1f 100644
--- a/drivers/crypto/ixp4xx_crypto.c
+++ b/drivers/crypto/ixp4xx_crypto.c
@@ -784,7 +784,7 @@ static struct buffer_desc *chainup_buffers(struct device *dev,
 		struct buffer_desc *buf, gfp_t flags,
 		enum dma_data_direction dir)
 {
-	for (;nbytes > 0; sg = scatterwalk_sg_next(sg)) {
+	for (; nbytes > 0; sg = sg_next(sg)) {
 		unsigned len = min(nbytes, sg->length);
 		struct buffer_desc *next_buf;
 		u32 next_buf_phys;
@@ -982,7 +982,7 @@ static int hmac_inconsistent(struct scatterlist *sg, unsigned start,
 			break;
 
 		offset += sg->length;
-		sg = scatterwalk_sg_next(sg);
+		sg = sg_next(sg);
 	}
 	return (start + nbytes > offset + sg->length);
 }
diff --git a/drivers/crypto/nx/nx.c b/drivers/crypto/nx/nx.c
index a392465d3e3f..1da6dc59d0dd 100644
--- a/drivers/crypto/nx/nx.c
+++ b/drivers/crypto/nx/nx.c
@@ -177,7 +177,7 @@ struct nx_sg *nx_walk_and_build(struct nx_sg       *nx_dst,
 			break;
 
 		offset += sg_src->length;
-		sg_src = scatterwalk_sg_next(sg_src);
+		sg_src = sg_next(sg_src);
 	}
 
 	/* start - offset is the number of bytes to advance in the scatterlist
@@ -187,9 +187,9 @@ struct nx_sg *nx_walk_and_build(struct nx_sg       *nx_dst,
 	while (len && (nx_sg - nx_dst) < sglen) {
 		n = scatterwalk_clamp(&walk, len);
 		if (!n) {
-			/* In cases where we have scatterlist chain scatterwalk_sg_next
+			/* In cases where we have scatterlist chain sg_next
 			 * handles with it properly */
-			scatterwalk_start(&walk, scatterwalk_sg_next(walk.sg));
+			scatterwalk_start(&walk, sg_next(walk.sg));
 			n = scatterwalk_clamp(&walk, len);
 		}
 		dst = scatterwalk_map(&walk);
diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c
index f79dd410dede..42f95a4326b0 100644
--- a/drivers/crypto/omap-aes.c
+++ b/drivers/crypto/omap-aes.c
@@ -994,7 +994,7 @@ static irqreturn_t omap_aes_irq(int irq, void *dev_id)
 
 			scatterwalk_advance(&dd->in_walk, 4);
 			if (dd->in_sg->length == _calc_walked(in)) {
-				dd->in_sg = scatterwalk_sg_next(dd->in_sg);
+				dd->in_sg = sg_next(dd->in_sg);
 				if (dd->in_sg) {
 					scatterwalk_start(&dd->in_walk,
 							  dd->in_sg);
@@ -1026,7 +1026,7 @@ static irqreturn_t omap_aes_irq(int irq, void *dev_id)
 			*dst = omap_aes_read(dd, AES_REG_DATA_N(dd, i));
 			scatterwalk_advance(&dd->out_walk, 4);
 			if (dd->out_sg->length == _calc_walked(out)) {
-				dd->out_sg = scatterwalk_sg_next(dd->out_sg);
+				dd->out_sg = sg_next(dd->out_sg);
 				if (dd->out_sg) {
 					scatterwalk_start(&dd->out_walk,
 							  dd->out_sg);
diff --git a/drivers/crypto/omap-des.c b/drivers/crypto/omap-des.c
index 0b8dcf5eb74e..46307098f8ba 100644
--- a/drivers/crypto/omap-des.c
+++ b/drivers/crypto/omap-des.c
@@ -921,7 +921,7 @@ static irqreturn_t omap_des_irq(int irq, void *dev_id)
 
 			scatterwalk_advance(&dd->in_walk, 4);
 			if (dd->in_sg->length == _calc_walked(in)) {
-				dd->in_sg = scatterwalk_sg_next(dd->in_sg);
+				dd->in_sg = sg_next(dd->in_sg);
 				if (dd->in_sg) {
 					scatterwalk_start(&dd->in_walk,
 							  dd->in_sg);
@@ -953,7 +953,7 @@ static irqreturn_t omap_des_irq(int irq, void *dev_id)
 			*dst = omap_des_read(dd, DES_REG_DATA_N(dd, i));
 			scatterwalk_advance(&dd->out_walk, 4);
 			if (dd->out_sg->length == _calc_walked(out)) {
-				dd->out_sg = scatterwalk_sg_next(dd->out_sg);
+				dd->out_sg = sg_next(dd->out_sg);
 				if (dd->out_sg) {
 					scatterwalk_start(&dd->out_walk,
 							  dd->out_sg);
diff --git a/drivers/crypto/qce/dma.c b/drivers/crypto/qce/dma.c
index 0fb21e13f247..378cb768647f 100644
--- a/drivers/crypto/qce/dma.c
+++ b/drivers/crypto/qce/dma.c
@@ -64,7 +64,7 @@ int qce_mapsg(struct device *dev, struct scatterlist *sg, int nents,
 			err = dma_map_sg(dev, sg, 1, dir);
 			if (!err)
 				return -EFAULT;
-			sg = scatterwalk_sg_next(sg);
+			sg = sg_next(sg);
 		}
 	} else {
 		err = dma_map_sg(dev, sg, nents, dir);
@@ -81,7 +81,7 @@ void qce_unmapsg(struct device *dev, struct scatterlist *sg, int nents,
 	if (chained)
 		while (sg) {
 			dma_unmap_sg(dev, sg, 1, dir);
-			sg = scatterwalk_sg_next(sg);
+			sg = sg_next(sg);
 		}
 	else
 		dma_unmap_sg(dev, sg, nents, dir);
@@ -100,7 +100,7 @@ int qce_countsg(struct scatterlist *sglist, int nbytes, bool *chained)
 		nbytes -= sg->length;
 		if (!sg_is_last(sg) && (sg + 1)->length == 0 && chained)
 			*chained = true;
-		sg = scatterwalk_sg_next(sg);
+		sg = sg_next(sg);
 	}
 
 	return nents;
diff --git a/drivers/crypto/qce/sha.c b/drivers/crypto/qce/sha.c
index f3385934eed2..5c5df1d17f90 100644
--- a/drivers/crypto/qce/sha.c
+++ b/drivers/crypto/qce/sha.c
@@ -285,7 +285,7 @@ static int qce_ahash_update(struct ahash_request *req)
 			break;
 		len += sg_dma_len(sg);
 		sg_last = sg;
-		sg = scatterwalk_sg_next(sg);
+		sg = sg_next(sg);
 	}
 
 	if (!sg_last)
diff --git a/drivers/crypto/sahara.c b/drivers/crypto/sahara.c
index 220b92f7eabc..290a7f0a681f 100644
--- a/drivers/crypto/sahara.c
+++ b/drivers/crypto/sahara.c
@@ -940,7 +940,7 @@ static int sahara_walk_and_recalc(struct scatterlist *sg, unsigned int nbytes)
 			break;
 		}
 		nbytes -= sg->length;
-		sg = scatterwalk_sg_next(sg);
+		sg = sg_next(sg);
 	}
 
 	return nbytes;
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 067ec2193d71..ebbae8d3ce0d 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -743,7 +743,7 @@ static int talitos_map_sg(struct device *dev, struct scatterlist *sg,
 	if (unlikely(chained))
 		while (sg) {
 			dma_map_sg(dev, sg, 1, dir);
-			sg = scatterwalk_sg_next(sg);
+			sg = sg_next(sg);
 		}
 	else
 		dma_map_sg(dev, sg, nents, dir);
@@ -755,7 +755,7 @@ static void talitos_unmap_sg_chain(struct device *dev, struct scatterlist *sg,
 {
 	while (sg) {
 		dma_unmap_sg(dev, sg, 1, dir);
-		sg = scatterwalk_sg_next(sg);
+		sg = sg_next(sg);
 	}
 }
 
@@ -915,7 +915,7 @@ static int sg_to_link_tbl(struct scatterlist *sg, int sg_count,
 		link_tbl_ptr->j_extent = 0;
 		link_tbl_ptr++;
 		cryptlen -= sg_dma_len(sg);
-		sg = scatterwalk_sg_next(sg);
+		sg = sg_next(sg);
 	}
 
 	/* adjust (decrease) last one (or two) entry's len to cryptlen */
@@ -1102,7 +1102,7 @@ static int sg_count(struct scatterlist *sg_list, int nbytes, bool *chained)
 		nbytes -= sg->length;
 		if (!sg_is_last(sg) && (sg + 1)->length == 0)
 			*chained = true;
-		sg = scatterwalk_sg_next(sg);
+		sg = sg_next(sg);
 	}
 
 	return sg_nents;
diff --git a/drivers/crypto/ux500/cryp/cryp_core.c b/drivers/crypto/ux500/cryp/cryp_core.c
index f087f37b2c67..d594ae962ed2 100644
--- a/drivers/crypto/ux500/cryp/cryp_core.c
+++ b/drivers/crypto/ux500/cryp/cryp_core.c
@@ -814,7 +814,7 @@ static int get_nents(struct scatterlist *sg, int nbytes)
 
 	while (nbytes > 0) {
 		nbytes -= sg->length;
-		sg = scatterwalk_sg_next(sg);
+		sg = sg_next(sg);
 		nents++;
 	}