diff options
| author | Eric Dumazet <edumazet@google.com> | 2025-06-30 12:19:31 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-07-02 14:32:30 -0700 |
| commit | a74fc62eec155ca5a6da8ff3856f3dc87fe24558 (patch) | |
| tree | d7e629c97015087e167aeaa02f52d23a6d8cd0d3 /net/ipv4/route.c | |
| parent | 88fe14253e181878c2ddb51a298ae8c468a63010 (diff) | |
ipv4: adopt dst_dev, skb_dst_dev and skb_dst_dev_net[_rcu]
Use the new helpers as a first step to deal with
potential dst->dev races.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20250630121934.3399505-8-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv4/route.c')
| -rw-r--r-- | net/ipv4/route.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c index ce6aba4f01ff..64ba377cd6cc 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -413,7 +413,7 @@ static struct neighbour *ipv4_neigh_lookup(const struct dst_entry *dst, const void *daddr) { const struct rtable *rt = container_of(dst, struct rtable, dst); - struct net_device *dev = dst->dev; + struct net_device *dev = dst_dev(dst); struct neighbour *n; rcu_read_lock(); @@ -440,7 +440,7 @@ static struct neighbour *ipv4_neigh_lookup(const struct dst_entry *dst, static void ipv4_confirm_neigh(const struct dst_entry *dst, const void *daddr) { const struct rtable *rt = container_of(dst, struct rtable, dst); - struct net_device *dev = dst->dev; + struct net_device *dev = dst_dev(dst); const __be32 *pkey = daddr; if (rt->rt_gw_family == AF_INET) { @@ -1026,7 +1026,7 @@ static void __ip_rt_update_pmtu(struct rtable *rt, struct flowi4 *fl4, u32 mtu) return; rcu_read_lock(); - net = dev_net_rcu(dst->dev); + net = dev_net_rcu(dst_dev(dst)); if (mtu < net->ipv4.ip_rt_min_pmtu) { lock = true; mtu = min(old_mtu, net->ipv4.ip_rt_min_pmtu); @@ -1326,7 +1326,7 @@ static unsigned int ipv4_default_advmss(const struct dst_entry *dst) struct net *net; rcu_read_lock(); - net = dev_net_rcu(dst->dev); + net = dev_net_rcu(dst_dev(dst)); advmss = max_t(unsigned int, ipv4_mtu(dst) - header_size, net->ipv4.ip_rt_min_advmss); rcu_read_unlock(); |