[PATCH 1/6] sock: add sock_kzalloc helper

[PATCH 1/6] sock: add sock_kzalloc helper

[Thorsten Blum]

Add sock_kzalloc() helper - the sock equivalent to kzalloc().

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
 include/net/sock.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/net/sock.h b/include/net/sock.h
index dccd3738c368..20bf406dff2d 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1904,6 +1904,11 @@ void sock_kfree_s(struct sock *sk, void *mem, int size);
 void sock_kzfree_s(struct sock *sk, void *mem, int size);
 void sk_send_sigurg(struct sock *sk);
 
+static inline void *sock_kzalloc(struct sock *sk, int size, gfp_t priority)
+{
+	return sock_kmalloc(sk, size, priority | __GFP_ZERO);
+}
+
 static inline void sock_replace_proto(struct sock *sk, struct proto *proto)
 {
 	if (sk->sk_socket)

[PATCH 2/6] crypto: af_alg - use sock_kzalloc in af_alg_alloc_areq

[Thorsten Blum]

Replace sock_kmalloc() followed by memset(0) with sock_kzalloc() to
simplify af_alg_alloc_areq().

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
 crypto/af_alg.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/crypto/af_alg.c b/crypto/af_alg.c
index 5a00c18eb145..7a853a866957 100644
--- a/crypto/af_alg.c
+++ b/crypto/af_alg.c
@@ -1179,12 +1179,10 @@ struct af_alg_async_req *af_alg_alloc_areq(struct sock *sk,
 	if (ctx->inflight)
 		return ERR_PTR(-EBUSY);
 
-	areq = sock_kmalloc(sk, areqlen, GFP_KERNEL);
+	areq = sock_kzalloc(sk, areqlen, GFP_KERNEL);
 	if (unlikely(!areq))
 		return ERR_PTR(-ENOMEM);
 
-	memset(areq, 0, areqlen);
-
 	ctx->inflight = true;
 
 	areq->areqlen = areqlen;

[PATCH 3/6] crypto: algif_aead - use sock_kzalloc in aead_accept_parent_nokey

[Thorsten Blum]

Replace sock_kmalloc() followed by memset(0) with sock_kzalloc() to
simplify aead_accept_parent_nokey().

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
 crypto/algif_aead.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/crypto/algif_aead.c b/crypto/algif_aead.c
index f8bd45f7dc83..83bb9a6bf85e 100644
--- a/crypto/algif_aead.c
+++ b/crypto/algif_aead.c
@@ -402,17 +402,15 @@ static int aead_accept_parent_nokey(void *private, struct sock *sk)
 	unsigned int len = sizeof(*ctx);
 	unsigned int ivlen = crypto_aead_ivsize(tfm);
 
-	ctx = sock_kmalloc(sk, len, GFP_KERNEL);
+	ctx = sock_kzalloc(sk, len, GFP_KERNEL);
 	if (!ctx)
 		return -ENOMEM;
-	memset(ctx, 0, len);
 
-	ctx->iv = sock_kmalloc(sk, ivlen, GFP_KERNEL);
+	ctx->iv = sock_kzalloc(sk, ivlen, GFP_KERNEL);
 	if (!ctx->iv) {
 		sock_kfree_s(sk, ctx, len);
 		return -ENOMEM;
 	}
-	memset(ctx->iv, 0, ivlen);
 
 	INIT_LIST_HEAD(&ctx->tsgl_list);
 	ctx->len = len;

[PATCH 4/6] crypto: af_alg - use sock_kzalloc in alloc_result + accept_parent_nokey

[Thorsten Blum]

Replace sock_kmalloc() followed by memset(0) with sock_kzalloc() to
simplify hash_alloc_result() and hash_accept_parent_nokey().

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
 crypto/algif_hash.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/crypto/algif_hash.c b/crypto/algif_hash.c
index 4d3dfc60a16a..02c0e448390d 100644
--- a/crypto/algif_hash.c
+++ b/crypto/algif_hash.c
@@ -38,12 +38,10 @@ static int hash_alloc_result(struct sock *sk, struct hash_ctx *ctx)
 
 	ds = crypto_ahash_digestsize(crypto_ahash_reqtfm(&ctx->req));
 
-	ctx->result = sock_kmalloc(sk, ds, GFP_KERNEL);
+	ctx->result = sock_kzalloc(sk, ds, GFP_KERNEL);
 	if (!ctx->result)
 		return -ENOMEM;
 
-	memset(ctx->result, 0, ds);
-
 	return 0;
 }
 
@@ -412,11 +410,10 @@ static int hash_accept_parent_nokey(void *private, struct sock *sk)
 	struct hash_ctx *ctx;
 	unsigned int len = sizeof(*ctx) + crypto_ahash_reqsize(tfm);
 
-	ctx = sock_kmalloc(sk, len, GFP_KERNEL);
+	ctx = sock_kzalloc(sk, len, GFP_KERNEL);
 	if (!ctx)
 		return -ENOMEM;
 
-	memset(ctx, 0, len);
 	ctx->len = len;
 	crypto_init_wait(&ctx->wait);
 

[PATCH 5/6] crypto: algif_rng - use sock_kzalloc in rng_accept_parent

[Thorsten Blum]

Replace sock_kmalloc() followed by memset(0) with sock_kzalloc() to
simplify rng_accept_parent().

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
 crypto/algif_rng.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/crypto/algif_rng.c b/crypto/algif_rng.c
index a9fb492e929a..f609463f9e14 100644
--- a/crypto/algif_rng.c
+++ b/crypto/algif_rng.c
@@ -244,11 +244,10 @@ static int rng_accept_parent(void *private, struct sock *sk)
 	struct alg_sock *ask = alg_sk(sk);
 	unsigned int len = sizeof(*ctx);
 
-	ctx = sock_kmalloc(sk, len, GFP_KERNEL);
+	ctx = sock_kzalloc(sk, len, GFP_KERNEL);
 	if (!ctx)
 		return -ENOMEM;
 
-	memset(ctx, 0, len);
 	ctx->len = len;
 
 	/*

[PATCH 6/6] crypto: algif_skcipher - use sock_kzalloc in accept_parent_nokey

[Thorsten Blum]

Replace sock_kmalloc() followed by memset(0) with sock_kzalloc() to
simplify skcipher_accept_parent_nokey().

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
 crypto/algif_skcipher.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c
index ba0a17fd95ac..f29a304e1268 100644
--- a/crypto/algif_skcipher.c
+++ b/crypto/algif_skcipher.c
@@ -383,18 +383,15 @@ static int skcipher_accept_parent_nokey(void *private, struct sock *sk)
 	struct crypto_skcipher *tfm = private;
 	unsigned int len = sizeof(*ctx);
 
-	ctx = sock_kmalloc(sk, len, GFP_KERNEL);
+	ctx = sock_kzalloc(sk, len, GFP_KERNEL);
 	if (!ctx)
 		return -ENOMEM;
-	memset(ctx, 0, len);
 
-	ctx->iv = sock_kmalloc(sk, crypto_skcipher_ivsize(tfm),
-			       GFP_KERNEL);
+	ctx->iv = sock_kzalloc(sk, crypto_skcipher_ivsize(tfm), GFP_KERNEL);
 	if (!ctx->iv) {
 		sock_kfree_s(sk, ctx, len);
 		return -ENOMEM;
 	}
-	memset(ctx->iv, 0, crypto_skcipher_ivsize(tfm));
 
 	INIT_LIST_HEAD(&ctx->tsgl_list);
 	ctx->len = len;