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net: use get_random_u{16,32,64}() where appropriate

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Use the typed random integer helpers instead of
get_random_bytes() when filling a single integer variable.
The helpers return the value directly, require no pointer
or size argument, and better express intent.

Skipped sites writing into __be16 (netdevsim) and __le64
(ceph) fields where a direct assignment would trigger
sparse endianness warnings.

Signed-off-by: David Carlier <devnexen@gmail.com>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260407150758.5889-1-devnexen@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
David Carlier
2026-04-07 16:07:58 +01:00
committed by Jakub Kicinski
parent 581d28606c
commit 9addea5d44
7 changed files with 10 additions and 10 deletions
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4
net/mptcp/subflow.c
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@@ -72,7 +72,7 @@ static void subflow_req_create_thmac(struct mptcp_subflow_request_sock *subflow_
struct mptcp_sock *msk = subflow_req->msk;
u8 hmac[SHA256_DIGEST_SIZE];
get_random_bytes(&subflow_req->local_nonce, sizeof(u32));
subflow_req->local_nonce = get_random_u32();
subflow_generate_hmac(READ_ONCE(msk->local_key),
READ_ONCE(msk->remote_key),
@@ -1639,7 +1639,7 @@ int __mptcp_subflow_connect(struct sock *sk, const struct mptcp_pm_local *local,
ssk = sf->sk;
subflow = mptcp_subflow_ctx(ssk);
do {
get_random_bytes(&subflow->local_nonce, sizeof(u32));
subflow->local_nonce = get_random_u32();
} while (!subflow->local_nonce);
/* if 'IPADDRANY', the ID will be set later, after the routing */