crypto: remove the second argument of k[un]map_atomic()

Signed-off-by: NCong Wang <amwang@redhat.com>

crypto/ahash.c

@@ -46,7 +46,7 @@ static int hash_walk_next(struct crypto_hash_walk *walk)
 	unsigned int nbytes = min(walk->entrylen,
 				  ((unsigned int)(PAGE_SIZE)) - offset);
 
-	walk->data = crypto_kmap(walk->pg, 0);
+	walk->data = kmap_atomic(walk->pg);
 	walk->data += offset;
 
 	if (offset & alignmask) {
@@ -93,7 +93,7 @@ int crypto_hash_walk_done(struct crypto_hash_walk *walk, int err)
 		return nbytes;
 	}
 
-	crypto_kunmap(walk->data, 0);
+	kunmap_atomic(walk->data);
 	crypto_yield(walk->flags);
 
 	if (err)

crypto/async_tx/async_memcpy.c

@@ -79,13 +79,13 @@ async_memcpy(struct page *dest, struct page *src, unsigned int dest_offset,
 		/* wait for any prerequisite operations */
 		async_tx_quiesce(&submit->depend_tx);
 
-		dest_buf = kmap_atomic(dest, KM_USER0) + dest_offset;
-		src_buf = kmap_atomic(src, KM_USER1) + src_offset;
+		dest_buf = kmap_atomic(dest) + dest_offset;
+		src_buf = kmap_atomic(src) + src_offset;
 
 		memcpy(dest_buf, src_buf, len);
 
-		kunmap_atomic(src_buf, KM_USER1);
-		kunmap_atomic(dest_buf, KM_USER0);
+		kunmap_atomic(src_buf);
+		kunmap_atomic(dest_buf);
 
 		async_tx_sync_epilog(submit);
 	}

crypto/blkcipher.c

@@ -43,22 +43,22 @@ static int blkcipher_walk_first(struct blkcipher_desc *desc,
 
 static inline void blkcipher_map_src(struct blkcipher_walk *walk)
 {
-	walk->src.virt.addr = scatterwalk_map(&walk->in, 0);
+	walk->src.virt.addr = scatterwalk_map(&walk->in);
 }
 
 static inline void blkcipher_map_dst(struct blkcipher_walk *walk)
 {
-	walk->dst.virt.addr = scatterwalk_map(&walk->out, 1);
+	walk->dst.virt.addr = scatterwalk_map(&walk->out);
 }
 
 static inline void blkcipher_unmap_src(struct blkcipher_walk *walk)
 {
-	scatterwalk_unmap(walk->src.virt.addr, 0);
+	scatterwalk_unmap(walk->src.virt.addr);
 }
 
 static inline void blkcipher_unmap_dst(struct blkcipher_walk *walk)
 {
-	scatterwalk_unmap(walk->dst.virt.addr, 1);
+	scatterwalk_unmap(walk->dst.virt.addr);
 }
 
 /* Get a spot of the specified length that does not straddle a page.

crypto/ccm.c

@@ -216,12 +216,12 @@ static void get_data_to_compute(struct crypto_cipher *tfm,
 			scatterwalk_start(&walk, sg_next(walk.sg));
 			n = scatterwalk_clamp(&walk, len);
 		}
-		data_src = scatterwalk_map(&walk, 0);
+		data_src = scatterwalk_map(&walk);
 
 		compute_mac(tfm, data_src, n, pctx);
 		len -= n;
 
-		scatterwalk_unmap(data_src, 0);
+		scatterwalk_unmap(data_src);
 		scatterwalk_advance(&walk, n);
 		scatterwalk_done(&walk, 0, len);
 		if (len)

crypto/scatterwalk.c

@@ -40,9 +40,9 @@ void scatterwalk_start(struct scatter_walk *walk, struct scatterlist *sg)
 }
 EXPORT_SYMBOL_GPL(scatterwalk_start);
 
-void *scatterwalk_map(struct scatter_walk *walk, int out)
+void *scatterwalk_map(struct scatter_walk *walk)
 {
-	return crypto_kmap(scatterwalk_page(walk), out) +
+	return kmap_atomic(scatterwalk_page(walk)) +
 	       offset_in_page(walk->offset);
 }
 EXPORT_SYMBOL_GPL(scatterwalk_map);
@@ -83,9 +83,9 @@ void scatterwalk_copychunks(void *buf, struct scatter_walk *walk,
 		if (len_this_page > nbytes)
 			len_this_page = nbytes;
 
-		vaddr = scatterwalk_map(walk, out);
+		vaddr = scatterwalk_map(walk);
 		memcpy_dir(buf, vaddr, len_this_page, out);
-		scatterwalk_unmap(vaddr, out);
+		scatterwalk_unmap(vaddr);
 
 		scatterwalk_advance(walk, len_this_page);
 

crypto/shash.c

@@ -281,10 +281,10 @@ int shash_ahash_digest(struct ahash_request *req, struct shash_desc *desc)
 	if (nbytes < min(sg->length, ((unsigned int)(PAGE_SIZE)) - offset)) {
 		void *data;
 
-		data = crypto_kmap(sg_page(sg), 0);
+		data = kmap_atomic(sg_page(sg));
 		err = crypto_shash_digest(desc, data + offset, nbytes,
 					  req->result);
-		crypto_kunmap(data, 0);
+		kunmap_atomic(data);
 		crypto_yield(desc->flags);
 	} else
 		err = crypto_shash_init(desc) ?:
@@ -420,9 +420,9 @@ static int shash_compat_digest(struct hash_desc *hdesc, struct scatterlist *sg,
 
 		desc->flags = hdesc->flags;
 
-		data = crypto_kmap(sg_page(sg), 0);
+		data = kmap_atomic(sg_page(sg));
 		err = crypto_shash_digest(desc, data + offset, nbytes, out);
-		crypto_kunmap(data, 0);
+		kunmap_atomic(data);
 		crypto_yield(desc->flags);
 		goto out;
 	}

include/crypto/scatterwalk.h

@@ -25,28 +25,6 @@
 #include <linux/scatterlist.h>
 #include <linux/sched.h>
 
-static inline enum km_type crypto_kmap_type(int out)
-{
-	enum km_type type;
-
-	if (in_softirq())
-		type = out * (KM_SOFTIRQ1 - KM_SOFTIRQ0) + KM_SOFTIRQ0;
-	else
-		type = out * (KM_USER1 - KM_USER0) + KM_USER0;
-
-	return type;
-}
-
-static inline void *crypto_kmap(struct page *page, int out)
-{
-	return kmap_atomic(page, crypto_kmap_type(out));
-}
-
-static inline void crypto_kunmap(void *vaddr, int out)
-{
-	kunmap_atomic(vaddr, crypto_kmap_type(out));
-}
-
 static inline void crypto_yield(u32 flags)
 {
 	if (flags & CRYPTO_TFM_REQ_MAY_SLEEP)
@@ -121,15 +99,15 @@ static inline struct page *scatterwalk_page(struct scatter_walk *walk)
 	return sg_page(walk->sg) + (walk->offset >> PAGE_SHIFT);
 }
 
-static inline void scatterwalk_unmap(void *vaddr, int out)
+static inline void scatterwalk_unmap(void *vaddr)
 {
-	crypto_kunmap(vaddr, out);
+	kunmap_atomic(vaddr);
 }
 
 void scatterwalk_start(struct scatter_walk *walk, struct scatterlist *sg);
 void scatterwalk_copychunks(void *buf, struct scatter_walk *walk,
 			    size_t nbytes, int out);
-void *scatterwalk_map(struct scatter_walk *walk, int out);
+void *scatterwalk_map(struct scatter_walk *walk);
 void scatterwalk_done(struct scatter_walk *walk, int out, int more);
 
 void scatterwalk_map_and_copy(void *buf, struct scatterlist *sg,