Index: head/sys/dev/cxgb/cxgb_sge.c
===================================================================
--- head/sys/dev/cxgb/cxgb_sge.c
+++ head/sys/dev/cxgb/cxgb_sge.c
@@ -2870,7 +2870,7 @@
 
                         memcpy(mtod(m, char *), r, AN_PKT_SIZE);
 			m->m_len = m->m_pkthdr.len = AN_PKT_SIZE;
-                        *mtod(m, char *) = CPL_ASYNC_NOTIF;
+                        *mtod(m, uint8_t *) = CPL_ASYNC_NOTIF;
 			opcode = CPL_ASYNC_NOTIF;
 			eop = 1;
                         rspq->async_notif++;