[NETFILTER]: x_tables: switch hotdrop to bool

Switch the "hotdrop" variables to boolean

Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/netfilter/ipt_ecn.c b/net/ipv4/netfilter/ipt_ecn.c
index 2621812..a47f374 100644
--- a/net/ipv4/netfilter/ipt_ecn.c
+++ b/net/ipv4/netfilter/ipt_ecn.c
@@ -30,7 +30,7 @@
 
 static inline int match_tcp(const struct sk_buff *skb,
 			    const struct ipt_ecn_info *einfo,
-			    int *hotdrop)
+			    bool *hotdrop)
 {
 	struct tcphdr _tcph, *th;
 
@@ -39,7 +39,7 @@
 	 */
 	th = skb_header_pointer(skb, ip_hdrlen(skb), sizeof(_tcph), &_tcph);
 	if (th == NULL) {
-		*hotdrop = 0;
+		*hotdrop = false;
 		return 0;
 	}
 
@@ -69,7 +69,7 @@
 static int match(const struct sk_buff *skb,
 		 const struct net_device *in, const struct net_device *out,
 		 const struct xt_match *match, const void *matchinfo,
-		 int offset, unsigned int protoff, int *hotdrop)
+		 int offset, unsigned int protoff, bool *hotdrop)
 {
 	const struct ipt_ecn_info *info = matchinfo;