tap, tcp: Fix two comparisons with different signedness reported by gcc 7

For some reason, those are not reported by recent versions of gcc.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/tap.c b/tap.c
index d6bad5a..a3fc249 100644
--- a/tap.c
+++ b/tap.c
@@ -340,7 +340,7 @@ resume:
 		iph = (struct iphdr *)(eh + 1);
 		if ((iph->ihl * 4) + sizeof(*eh) > len)
 			continue;
-		if (iph->ihl * 4 < sizeof(*iph))
+		if (iph->ihl * 4 < (int)sizeof(*iph))
 			continue;
 
 		if (iph->saddr && c->addr4_seen != iph->saddr) {