diff options
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/rtnetlink.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index dfdd08006fae..41eb8bca5305 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -1477,13 +1477,15 @@ static int rtnl_fill_link_ifmap(struct sk_buff *skb, static u32 rtnl_xdp_prog_skb(struct net_device *dev) { const struct bpf_prog *generic_xdp_prog; + u32 res = 0; - ASSERT_RTNL(); + rcu_read_lock(); + generic_xdp_prog = rcu_dereference(dev->xdp_prog); + if (generic_xdp_prog) + res = generic_xdp_prog->aux->id; + rcu_read_unlock(); - generic_xdp_prog = rtnl_dereference(dev->xdp_prog); - if (!generic_xdp_prog) - return 0; - return generic_xdp_prog->aux->id; + return res; } static u32 rtnl_xdp_prog_drv(struct net_device *dev) |