From: Eric Dumazet <edumazet@google.com>
To: "David S . Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Paolo Abeni <pabeni@redhat.com>
Cc: Simon Horman <horms@kernel.org>, David Ahern <dsahern@kernel.org>,
Kuniyuki Iwashima <kuniyu@google.com>,
netdev@vger.kernel.org, eric.dumazet@gmail.com,
Eric Dumazet <edumazet@google.com>
Subject: [PATCH net-next 3/8] ipv6: use __skb_push() in ip6_xmit()
Date: Fri, 30 Jan 2026 21:02:58 +0000 [thread overview]
Message-ID: <20260130210303.3888261-4-edumazet@google.com> (raw)
In-Reply-To: <20260130210303.3888261-1-edumazet@google.com>
ip6_xmit() makes sure there is enough headroom in the skb,
it can uses __skb_push() instead of the out-of-line skb_push().
Signed-off-by: Eric Dumazet <edumazet@google.com>
---
net/ipv6/ip6_output.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 5c2cfcc3cf6e56192123c5830250865d37e72581..279d4daa85c442eb3db8add1d97c57c1ffbe820f 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -314,7 +314,7 @@ int ip6_xmit(const struct sock *sk, struct sk_buff *skb, struct flowi6 *fl6,
}
if (unlikely(seg_len > IPV6_MAXPLEN)) {
- hop_jumbo = skb_push(skb, hoplen);
+ hop_jumbo = __skb_push(skb, hoplen);
hop_jumbo->nexthdr = proto;
hop_jumbo->hdrlen = 0;
@@ -327,7 +327,7 @@ int ip6_xmit(const struct sock *sk, struct sk_buff *skb, struct flowi6 *fl6,
IP6CB(skb)->flags |= IP6SKB_FAKEJUMBO;
}
- skb_push(skb, sizeof(struct ipv6hdr));
+ __skb_push(skb, sizeof(struct ipv6hdr));
skb_reset_network_header(skb);
hdr = ipv6_hdr(skb);
--
2.53.0.rc1.225.gd81095ad13-goog
next prev parent reply other threads:[~2026-01-30 21:03 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-30 21:02 [PATCH net-next 0/8] ipv6: misc changes in output path Eric Dumazet
2026-01-30 21:02 ` [PATCH net-next 1/8] ipv6: pass proto by value to ipv6_push_nfrag_opts() and ipv6_push_frag_opts() Eric Dumazet
2026-01-31 6:29 ` Kuniyuki Iwashima
2026-01-30 21:02 ` [PATCH net-next 2/8] ipv6: add some unlikely()/likely() clauses in ip6_output.c Eric Dumazet
2026-01-31 6:30 ` Kuniyuki Iwashima
2026-01-30 21:02 ` Eric Dumazet [this message]
2026-01-31 6:32 ` [PATCH net-next 3/8] ipv6: use __skb_push() in ip6_xmit() Kuniyuki Iwashima
2026-01-30 21:02 ` [PATCH net-next 4/8] ipv6: use SKB_DROP_REASON_PKT_TOO_BIG " Eric Dumazet
2026-01-31 6:33 ` Kuniyuki Iwashima
2026-01-30 21:03 ` [PATCH net-next 5/8] inet: add dst4_mtu() and dst6_mtu() helpers Eric Dumazet
2026-01-31 6:34 ` Kuniyuki Iwashima
2026-01-30 21:03 ` [PATCH net-next 6/8] ipv6: use dst6_mtu() instead of dst_mtu() Eric Dumazet
2026-01-31 6:39 ` Kuniyuki Iwashima
2026-01-30 21:03 ` [PATCH net-next 7/8] ipv4: use dst4_mtu() " Eric Dumazet
2026-01-31 6:42 ` Kuniyuki Iwashima
2026-01-30 21:03 ` [PATCH net-next 8/8] ipv6: colocate inet6_cork in inet_cork_full Eric Dumazet
2026-01-31 6:46 ` Kuniyuki Iwashima
2026-02-03 2:00 ` [PATCH net-next 0/8] ipv6: misc changes in output path patchwork-bot+netdevbpf
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