diff --git a/sys/net80211/ieee80211_acl.c b/sys/net80211/ieee80211_acl.c
index cb20b87e73be..da505e3b9d1e 100644
--- a/sys/net80211/ieee80211_acl.c
+++ b/sys/net80211/ieee80211_acl.c
@@ -77,7 +77,7 @@ struct acl {
 struct aclstate {
 	acl_lock_t		as_lock;
 	int			as_policy;
-	int			as_nacls;
+	uint32_t		as_nacls;
 	TAILQ_HEAD(, acl)	as_list;	/* list of all ACL's */
 	LIST_HEAD(, acl)	as_hash[ACL_HASHSIZE];
 	struct ieee80211vap	*as_vap;
@@ -289,7 +289,8 @@ acl_getioctl(struct ieee80211vap *vap, struct ieee80211req *ireq)
 	struct aclstate *as = vap->iv_as;
 	struct acl *acl;
 	struct ieee80211req_maclist *ap;
-	int error, space, i;
+	int error;
+	uint32_t i, space;
 
 	switch (ireq->i_val) {
 	case IEEE80211_MACCMD_POLICY:
diff --git a/sys/net80211/ieee80211_ioctl.c b/sys/net80211/ieee80211_ioctl.c
index 37d5dbe69290..f8e1785976cb 100644
--- a/sys/net80211/ieee80211_ioctl.c
+++ b/sys/net80211/ieee80211_ioctl.c
@@ -143,7 +143,7 @@ static __noinline int
 ieee80211_ioctl_getchaninfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
 {
 	struct ieee80211com *ic = vap->iv_ic;
-	int space;
+	uint32_t space;
 
 	space = __offsetof(struct ieee80211req_chaninfo,
 			ic_chans[ic->ic_nchans]);
@@ -207,7 +207,7 @@ ieee80211_ioctl_getstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
 {
 	struct ieee80211_node *ni;
 	uint8_t macaddr[IEEE80211_ADDR_LEN];
-	const int off = __offsetof(struct ieee80211req_sta_stats, is_stats);
+	const size_t off = __offsetof(struct ieee80211req_sta_stats, is_stats);
 	int error;
 
 	if (ireq->i_len < off)
@@ -323,7 +323,7 @@ ieee80211_ioctl_getscanresults(struct ieee80211vap *vap,
 	if (req.space > ireq->i_len)
 		req.space = ireq->i_len;
 	if (req.space > 0) {
-		size_t space;
+		uint32_t space;
 		void *p;
 
 		space = req.space;
@@ -458,7 +458,7 @@ get_sta_info(void *arg, struct ieee80211_node *ni)
 
 static __noinline int
 getstainfo_common(struct ieee80211vap *vap, struct ieee80211req *ireq,
-	struct ieee80211_node *ni, int off)
+	struct ieee80211_node *ni, size_t off)
 {
 	struct ieee80211com *ic = vap->iv_ic;
 	struct stainforeq req;
@@ -503,7 +503,7 @@ static __noinline int
 ieee80211_ioctl_getstainfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
 {
 	uint8_t macaddr[IEEE80211_ADDR_LEN];
-	const int off = __offsetof(struct ieee80211req_sta_req, info);
+	const size_t off = __offsetof(struct ieee80211req_sta_req, info);
 	struct ieee80211_node *ni;
 	int error;
 
diff --git a/sys/net80211/ieee80211_ioctl.h b/sys/net80211/ieee80211_ioctl.h
index 7215a5edd9f9..cad55760ce1e 100644
--- a/sys/net80211/ieee80211_ioctl.h
+++ b/sys/net80211/ieee80211_ioctl.h
@@ -578,7 +578,7 @@ struct ieee80211req {
 	char		i_name[IFNAMSIZ];	/* if_name, e.g. "wi0" */
 	uint16_t	i_type;			/* req type */
 	int16_t		i_val;			/* Index or simple value */
-	int16_t		i_len;			/* Index or simple value */
+	uint16_t	i_len;			/* Index or simple value */
 	void		*i_data;		/* Extra data */
 };
 #define	SIOCS80211		 _IOW('i', 234, struct ieee80211req)