From: Matt Corallo <git@bluematt.me>
Date: Thu, 20 May 2021 14:26:41 +0000 (+0000)
Subject: Satisfy BPF verifier with port swhich it can't prove are init'd values
X-Git-Url: http://git.bitcoin.ninja/index.cgi?p=flowspec-xdp;a=commitdiff_plain;h=36cf3e162d8ca62a573f7b7989a9ec5b50ebba8c

Satisfy BPF verifier with port swhich it can't prove are init'd values
---

diff --git a/xdp.c b/xdp.c
index 8f73d80..a32f605 100644
--- a/xdp.c
+++ b/xdp.c
@@ -265,7 +265,7 @@ int xdp_drop_prog(struct xdp_md *ctx)
 	const void *l4hdr = NULL;
 	const struct tcphdr *tcp = NULL;
 	uint8_t ports_valid = 0;
-	uint16_t sport, dport; // Host Endian! Only valid with tcp || udp
+	uint16_t sport = 0, dport = 0; // Host Endian! Only valid with tcp || udp
 
 #ifdef NEED_V4_PARSE
 	if (eth_proto == BE16(ETH_P_IP)) {