From: Jesper Dangaard Brouer Date: Thu, 24 Aug 2017 10:33:03 +0000 (+0200) Subject: xdp: remove bpf_warn_invalid_xdp_redirect X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d08adb82fda523cb51a767e2833c5c5bb0906162;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git xdp: remove bpf_warn_invalid_xdp_redirect Given there is a tracepoint that can track the error code of xdp_do_redirect calls, the WARN_ONCE in bpf_warn_invalid_xdp_redirect doesn't seem relevant any longer. Simply remove the function. Signed-off-by: Jesper Dangaard Brouer Acked-by: Daniel Borkmann Signed-off-by: David S. Miller --- diff --git a/net/core/filter.c b/net/core/filter.c index 2a0d762a20d8..a5e5f31b41b9 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -2476,7 +2476,6 @@ static int __bpf_tx_xdp(struct net_device *dev, int err; if (!dev->netdev_ops->ndo_xdp_xmit) { - bpf_warn_invalid_xdp_redirect(dev->ifindex); return -EOPNOTSUPP; } @@ -2543,7 +2542,6 @@ int xdp_do_redirect(struct net_device *dev, struct xdp_buff *xdp, fwd = dev_get_by_index_rcu(dev_net(dev), index); ri->ifindex = 0; if (unlikely(!fwd)) { - bpf_warn_invalid_xdp_redirect(index); err = -EINVAL; goto out; } @@ -2564,7 +2562,6 @@ int xdp_do_generic_redirect(struct net_device *dev, struct sk_buff *skb) dev = dev_get_by_index_rcu(dev_net(dev), index); ri->ifindex = 0; if (unlikely(!dev)) { - bpf_warn_invalid_xdp_redirect(index); return -EINVAL; } @@ -3565,11 +3562,6 @@ void bpf_warn_invalid_xdp_action(u32 act) } EXPORT_SYMBOL_GPL(bpf_warn_invalid_xdp_action); -void bpf_warn_invalid_xdp_redirect(u32 ifindex) -{ - WARN_ONCE(1, "Illegal XDP redirect to unsupported device ifindex(%i)\n", ifindex); -} - static bool __is_valid_sock_ops_access(int off, int size) { if (off < 0 || off >= sizeof(struct bpf_sock_ops))