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| author | Eric Dumazet <edumazet@google.com> | 2026-01-02 23:37:25 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-01-08 12:15:01 +0300 |
| commit | 8e8d6bf68633d2a2cbd01814584d29beb38fef68 (patch) | |
| tree | 95bc089e4cd7d35613ad88c77ff7d9efceb1ce95 /include/net | |
| parent | 1e28e7701b109f9fb8f57d469314ef6ab86c1f0a (diff) | |
| download | linux-8e8d6bf68633d2a2cbd01814584d29beb38fef68.tar.xz | |
ipv6: adopt dst_dev() helper
[ Upstream commit 1caf27297215a5241f9bfc9c07336349d9034ee3 ]
Use the new helper as a 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/20250630121934.3399505-9-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
[Harshit: Backport to 6.12.y, pulled this is a prerequisite]
Stable-dep-of: 99a2ace61b21 ("net: use dst_dev_rcu() in sk_setup_caps()")
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/ip6_route.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h index 6dbdf60b342f..9255f21818ee 100644 --- a/include/net/ip6_route.h +++ b/include/net/ip6_route.h @@ -274,7 +274,7 @@ static inline unsigned int ip6_skb_dst_mtu(const struct sk_buff *skb) unsigned int mtu; if (np && READ_ONCE(np->pmtudisc) >= IPV6_PMTUDISC_PROBE) { - mtu = READ_ONCE(dst->dev->mtu); + mtu = READ_ONCE(dst_dev(dst)->mtu); mtu -= lwtunnel_headroom(dst->lwtstate, mtu); } else { mtu = dst_mtu(dst); @@ -337,7 +337,7 @@ static inline unsigned int ip6_dst_mtu_maybe_forward(const struct dst_entry *dst mtu = IPV6_MIN_MTU; rcu_read_lock(); - idev = __in6_dev_get(dst->dev); + idev = __in6_dev_get(dst_dev(dst)); if (idev) mtu = READ_ONCE(idev->cnf.mtu6); rcu_read_unlock(); |