diff options
Diffstat (limited to 'samples/bpf/tracex1_kern.c')
| -rw-r--r-- | samples/bpf/tracex1_kern.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/samples/bpf/tracex1_kern.c b/samples/bpf/tracex1_kern.c index 107da148820f..9c74b45c5720 100644 --- a/samples/bpf/tracex1_kern.c +++ b/samples/bpf/tracex1_kern.c @@ -20,7 +20,7 @@ SEC("kprobe/__netif_receive_skb_core") int bpf_prog1(struct pt_regs *ctx) { - /* attaches to kprobe netif_receive_skb, + /* attaches to kprobe __netif_receive_skb_core, * looks for packets on loobpack device and prints them */ char devname[IFNAMSIZ]; @@ -29,7 +29,7 @@ int bpf_prog1(struct pt_regs *ctx) int len; /* non-portable! works for the given kernel only */ - skb = (struct sk_buff *) PT_REGS_PARM1(ctx); + bpf_probe_read_kernel(&skb, sizeof(skb), (void *)PT_REGS_PARM1(ctx)); dev = _(skb->dev); len = _(skb->len); |