xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

xdp: make generic xdp redirect use tracepoint trace_xdp_redirect

Browse Source 
If the xdp_do_generic_redirect() call fails, it trigger the
trace_xdp_exception tracepoint.  It seems better to use the same
tracepoint trace_xdp_redirect, as the native xdp_do_redirect{,_map} does.

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jesper Dangaard Brouer
2017-08-24 12:33:08 +02:00
committed by David S. Miller
parent d08adb82fd
commit 2facaad600
3 changed files with 27 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
net/core/dev.c
View File

@@ -3953,7 +3953,8 @@ int do_xdp_generic(struct bpf_prog *xdp_prog, struct sk_buff *skb)
if (act != XDP_PASS) {
switch (act) {
case XDP_REDIRECT:
err = xdp_do_generic_redirect(skb->dev, skb);
err = xdp_do_generic_redirect(skb->dev, skb,
xdp_prog);
if (err)
goto out_redir;
/* fallthru to submit skb */
@@ -3966,7 +3967,6 @@ int do_xdp_generic(struct bpf_prog *xdp_prog, struct sk_buff *skb)
}
return XDP_PASS;
out_redir:
trace_xdp_exception(skb->dev, xdp_prog, XDP_REDIRECT);
kfree_skb(skb);
return XDP_DROP;
}