netdev - [PATCH net-next 6/8] tcp: add const to tcp_try_rmem_schedule() and sk_rmem

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Message-ID: <20250711114006.480026-7-edumazet@google.com>
Date: Fri, 11 Jul 2025 11:40:04 +0000
From: Eric Dumazet <edumazet@...gle.com>
To: "David S . Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, 
	Paolo Abeni <pabeni@...hat.com>, Neal Cardwell <ncardwell@...gle.com>
Cc: Simon Horman <horms@...nel.org>, Kuniyuki Iwashima <kuniyu@...gle.com>, 
	Willem de Bruijn <willemb@...gle.com>, netdev@...r.kernel.org, eric.dumazet@...il.com, 
	Eric Dumazet <edumazet@...gle.com>
Subject: [PATCH net-next 6/8] tcp: add const to tcp_try_rmem_schedule() and
 sk_rmem_schedule() skb

These functions to not modify the skb, add a const qualifier.

Signed-off-by: Eric Dumazet <edumazet@...gle.com>
---
 include/net/sock.h   | 2 +-
 net/ipv4/tcp_input.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/net/sock.h b/include/net/sock.h
index 0f2443d4ec581639eb3bdc46cb9b2932123e9246..c8a4b283df6fc4b931270502ddbb5df7ae1e4aa2 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1553,7 +1553,7 @@ __sk_rmem_schedule(struct sock *sk, int size, bool pfmemalloc)
 }
 
 static inline bool
-sk_rmem_schedule(struct sock *sk, struct sk_buff *skb, int size)
+sk_rmem_schedule(struct sock *sk, const struct sk_buff *skb, int size)
 {
 	return __sk_rmem_schedule(sk, size, skb_pfmemalloc(skb));
 }
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 78da05933078b5b665113b57a0edc03b29820496..39de55ff898e6ec9c6e5bc9dc7b80ec9d235ca44 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -4888,7 +4888,7 @@ static void tcp_ofo_queue(struct sock *sk)
 static bool tcp_prune_ofo_queue(struct sock *sk, const struct sk_buff *in_skb);
 static int tcp_prune_queue(struct sock *sk, const struct sk_buff *in_skb);
 
-static int tcp_try_rmem_schedule(struct sock *sk, struct sk_buff *skb,
+static int tcp_try_rmem_schedule(struct sock *sk, const struct sk_buff *skb,
 				 unsigned int size)
 {
 	if (atomic_read(&sk->sk_rmem_alloc) > sk->sk_rcvbuf ||
-- 
2.50.0.727.gbf7dc18ff4-goog