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-rw-r--r--src/plugins/bpf_trace_filter/bpf_trace_filter.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/plugins/bpf_trace_filter/bpf_trace_filter.c b/src/plugins/bpf_trace_filter/bpf_trace_filter.c
index ff08d2cdb80..01d5b1e96a7 100644
--- a/src/plugins/bpf_trace_filter/bpf_trace_filter.c
+++ b/src/plugins/bpf_trace_filter/bpf_trace_filter.c
@@ -64,9 +64,9 @@ bpf_is_packed_traced (vlib_buffer_t *b, u32 classify_table_index, int func)
struct pcap_pkthdr phdr = { 0 };
int res;
int res1;
- res1 = vnet_is_packet_traced (b, classify_table_index, 0);
- if (res1 != 1)
+ if (classify_table_index != ~0 &&
+ (res1 = vnet_is_packet_traced (b, classify_table_index, 0)) != 1)
return res1;
if (!bfm->prog_set)