[PATCH bpf-nex] bpf: Fix an inconsitency between copies of bpf.h.

[Kui-Feng Lee <kuifeng@xxxxxx>]

struct bpf_lpm_trie_key is inconsistent in two copies of bpf.h.
It cuases a warning message during building the kernel.

Signed-off-by: Kui-Feng Lee <kuifeng@xxxxxx>
---
 include/uapi/linux/bpf.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 934a2a8beb87..1d6085e15fc8 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -79,7 +79,7 @@ struct bpf_insn {
 /* Key of an a BPF_MAP_TYPE_LPM_TRIE entry */
 struct bpf_lpm_trie_key {
 	__u32	prefixlen;	/* up to 32 for AF_INET, 128 for AF_INET6 */
-	__u8	data[];	/* Arbitrary size */
+	__u8	data[0];	/* Arbitrary size */
 };
 
 struct bpf_cgroup_storage_key {
-- 
2.30.2