[PATCH 1/1] crypto: ux500: hash: Add namespacing to hash_init()

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A recent change to the Regulator consumer API (which this driver
utilises) add prototypes for the some suspend functions.  These
functions require including header file include/linux/suspend.h.

The following tree of includes affecting this driver will be
present:

   In file included from include/linux/elevator.h:6,
                    from include/linux/blkdev.h:288,
                    from include/linux/blk-cgroup.h:23,
                    from include/linux/writeback.h:14,
                    from include/linux/memcontrol.h:22,
                    from include/linux/swap.h:9,
                    from include/linux/suspend.h:5,
                    from include/linux/regulator/consumer.h:35,
                    from drivers/crypto/ux500/hash/hash_core.c:28:

include/linux/elevator.h pulls in include/linux/hashtable.h which
contains its own version of hash_init().  This confuses the build
system and results in the following error (amongst others):

 drivers/crypto/ux500/hash/hash_core.c:1362:19: error: passing argument 1 of '__hash_init' from incompatible pointer type [-Werror=incompatible-pointer-types]
 1362 |  return hash_init(req);

Fix this by namespacing the local hash_init() such that the
source of confusion is removed.

Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
Cc: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Cc: David S. Miller <davem@xxxxxxxxxxxxx>
Cc: linux-crypto@xxxxxxxxxxxxxxx
Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
---

Ideally this should go into v5.8's -rcs else it runs the risk of
breaking when Linus pulls everything in for v5.9-rc1.

 drivers/crypto/ux500/hash/hash_core.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/crypto/ux500/hash/hash_core.c b/drivers/crypto/ux500/hash/hash_core.c
index c24f2db8d5e83..a5ee8c2fb4e0b 100644
--- a/drivers/crypto/ux500/hash/hash_core.c
+++ b/drivers/crypto/ux500/hash/hash_core.c
@@ -545,7 +545,7 @@ static bool hash_dma_valid_data(struct scatterlist *sg, int datasize)
  *
  * Initialize structures.
  */
-static int hash_init(struct ahash_request *req)
+static int ux500_hash_init(struct ahash_request *req)
 {
 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
 	struct hash_ctx *ctx = crypto_ahash_ctx(tfm);
@@ -1359,7 +1359,7 @@ static int ahash_sha1_init(struct ahash_request *req)
 	ctx->config.oper_mode = HASH_OPER_MODE_HASH;
 	ctx->digestsize = SHA1_DIGEST_SIZE;
 
-	return hash_init(req);
+	return ux500_hash_init(req);
 }
 
 static int ahash_sha256_init(struct ahash_request *req)
@@ -1372,7 +1372,7 @@ static int ahash_sha256_init(struct ahash_request *req)
 	ctx->config.oper_mode = HASH_OPER_MODE_HASH;
 	ctx->digestsize = SHA256_DIGEST_SIZE;
 
-	return hash_init(req);
+	return ux500_hash_init(req);
 }
 
 static int ahash_sha1_digest(struct ahash_request *req)
@@ -1425,7 +1425,7 @@ static int hmac_sha1_init(struct ahash_request *req)
 	ctx->config.oper_mode	= HASH_OPER_MODE_HMAC;
 	ctx->digestsize		= SHA1_DIGEST_SIZE;
 
-	return hash_init(req);
+	return ux500_hash_init(req);
 }
 
 static int hmac_sha256_init(struct ahash_request *req)
@@ -1438,7 +1438,7 @@ static int hmac_sha256_init(struct ahash_request *req)
 	ctx->config.oper_mode	= HASH_OPER_MODE_HMAC;
 	ctx->digestsize		= SHA256_DIGEST_SIZE;
 
-	return hash_init(req);
+	return ux500_hash_init(req);
 }
 
 static int hmac_sha1_digest(struct ahash_request *req)
@@ -1515,7 +1515,7 @@ static struct hash_algo_template hash_algs[] = {
 		.conf.algorithm = HASH_ALGO_SHA1,
 		.conf.oper_mode = HASH_OPER_MODE_HASH,
 		.hash = {
-			.init = hash_init,
+			.init = ux500_hash_init,
 			.update = ahash_update,
 			.final = ahash_final,
 			.digest = ahash_sha1_digest,
@@ -1538,7 +1538,7 @@ static struct hash_algo_template hash_algs[] = {
 		.conf.algorithm	= HASH_ALGO_SHA256,
 		.conf.oper_mode	= HASH_OPER_MODE_HASH,
 		.hash = {
-			.init = hash_init,
+			.init = ux500_hash_init,
 			.update	= ahash_update,
 			.final = ahash_final,
 			.digest = ahash_sha256_digest,
@@ -1561,7 +1561,7 @@ static struct hash_algo_template hash_algs[] = {
 		.conf.algorithm = HASH_ALGO_SHA1,
 		.conf.oper_mode = HASH_OPER_MODE_HMAC,
 			.hash = {
-			.init = hash_init,
+			.init = ux500_hash_init,
 			.update = ahash_update,
 			.final = ahash_final,
 			.digest = hmac_sha1_digest,
@@ -1585,7 +1585,7 @@ static struct hash_algo_template hash_algs[] = {
 		.conf.algorithm = HASH_ALGO_SHA256,
 		.conf.oper_mode = HASH_OPER_MODE_HMAC,
 		.hash = {
-			.init = hash_init,
+			.init = ux500_hash_init,
 			.update = ahash_update,
 			.final = ahash_final,
 			.digest = hmac_sha256_digest,
-- 
2.25.1




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