diff --git a/sys/kern/uipc_mbuf.c b/sys/kern/uipc_mbuf.c
--- a/sys/kern/uipc_mbuf.c
+++ b/sys/kern/uipc_mbuf.c
@@ -236,10 +236,10 @@
 {
 	volatile u_int *refcnt;
 
-	KASSERT(m->m_flags & (M_EXT|M_EXTPG),
-	    ("%s: M_EXT|M_EXTPG not set on %p", __func__, m));
-	KASSERT(!(n->m_flags & (M_EXT|M_EXTPG)),
-	    ("%s: M_EXT|M_EXTPG set on %p", __func__, n));
+	KASSERT(m->m_flags & (M_EXT | M_EXTPG),
+	    ("%s: M_EXT | M_EXTPG not set on %p", __func__, m));
+	KASSERT(!(n->m_flags & (M_EXT | M_EXTPG)),
+	    ("%s: M_EXT | M_EXTPG set on %p", __func__, n));
 
 	/*
 	 * Cache access optimization.
@@ -569,7 +569,7 @@
 			copyhdr = 0;
 		}
 		n->m_len = min(len, m->m_len - off);
-		if (m->m_flags & (M_EXT|M_EXTPG)) {
+		if (m->m_flags & (M_EXT | M_EXTPG)) {
 			n->m_data = m->m_data + off;
 			mb_dupcl(n, m);
 		} else
@@ -611,7 +611,7 @@
 	if (!m_dup_pkthdr(n, m, how))
 		goto nospace;
 	n->m_len = m->m_len;
-	if (m->m_flags & (M_EXT|M_EXTPG)) {
+	if (m->m_flags & (M_EXT | M_EXTPG)) {
 		n->m_data = m->m_data;
 		mb_dupcl(n, m);
 	} else {
@@ -629,7 +629,7 @@
 		n = n->m_next;
 
 		n->m_len = m->m_len;
-		if (m->m_flags & (M_EXT|M_EXTPG)) {
+		if (m->m_flags & (M_EXT | M_EXTPG)) {
 			n->m_data = m->m_data;
 			mb_dupcl(n, m);
 		} else {
@@ -1070,7 +1070,7 @@
 			n->m_pkthdr.rcvif = m0->m_pkthdr.rcvif;
 		n->m_pkthdr.len = m0->m_pkthdr.len - len0;
 		m0->m_pkthdr.len = len0;
-		if (m->m_flags & (M_EXT|M_EXTPG))
+		if (m->m_flags & (M_EXT | M_EXTPG))
 			goto extpacket;
 		if (remain > MHLEN) {
 			/* m can't be the lead packet */
@@ -1096,7 +1096,7 @@
 		M_ALIGN(n, remain);
 	}
 extpacket:
-	if (m->m_flags & (M_EXT|M_EXTPG)) {
+	if (m->m_flags & (M_EXT | M_EXTPG)) {
 		n->m_data = m->m_data + len;
 		mb_dupcl(n, m);
 	} else {
diff --git a/sys/netinet/tcp_output.c b/sys/netinet/tcp_output.c
--- a/sys/netinet/tcp_output.c
+++ b/sys/netinet/tcp_output.c
@@ -2087,7 +2087,7 @@
 		}
 		n->m_len = mlen;
 		len_cp += n->m_len;
-		if (m->m_flags & (M_EXT|M_EXTPG)) {
+		if (m->m_flags & (M_EXT | M_EXTPG)) {
 			n->m_data = m->m_data + off;
 			mb_dupcl(n, m);
 		} else
diff --git a/sys/netinet/tcp_pcap.c b/sys/netinet/tcp_pcap.c
--- a/sys/netinet/tcp_pcap.c
+++ b/sys/netinet/tcp_pcap.c
@@ -368,7 +368,7 @@
 	 * In cases where that isn't possible, settle for what we can
 	 * get.
 	 */
-	if ((m->m_flags & (M_EXT|M_EXTPG)) &&
+	if ((m->m_flags & (M_EXT | M_EXTPG)) &&
 	    tcp_pcap_take_cluster_reference()) {
 		n->m_data = m->m_data;
 		n->m_len = m->m_len;
diff --git a/sys/netinet/tcp_stacks/rack.c b/sys/netinet/tcp_stacks/rack.c
--- a/sys/netinet/tcp_stacks/rack.c
+++ b/sys/netinet/tcp_stacks/rack.c
@@ -18455,7 +18455,7 @@
 		n->m_len = mlen;
 		soff += mlen;
 		len_cp += n->m_len;
-		if (m->m_flags & (M_EXT|M_EXTPG)) {
+		if (m->m_flags & (M_EXT | M_EXTPG)) {
 			n->m_data = m->m_data + off;
 			mb_dupcl(n, m);
 		} else {