diff --git a/sys/dev/fdt/panel_fdt.c b/sys/dev/fdt/panel_fdt.c
index 578f67c45a2d..550b70edb493 100644
--- a/sys/dev/fdt/panel_fdt.c
+++ b/sys/dev/fdt/panel_fdt.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: panel_fdt.c,v 1.1 2018/04/03 12:40:20 bouyer Exp $	*/
+/*	$NetBSD: panel_fdt.c,v 1.2 2019/06/24 06:24:33 skrll Exp $	*/
 
 /*-
  * Copyright (c) 2018 The NetBSD Foundation, Inc.
@@ -39,7 +39,7 @@
 
 #include <sys/cdefs.h>
 
-__KERNEL_RCSID(1, "$NetBSD: panel_fdt.c,v 1.1 2018/04/03 12:40:20 bouyer Exp $");
+__KERNEL_RCSID(1, "$NetBSD: panel_fdt.c,v 1.2 2019/06/24 06:24:33 skrll Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -136,7 +136,7 @@ fdt_panel_attach(device_t parent, device_t self, void *aux)
 		else if (strcmp(val, "vesa-24") == 0)
 			sc->sc_panel.panel_lvds_format = LVDS_VESA_24;
 		else {
-			aprint_error(": unkown data-mapping \"%s\"\n", val);
+			aprint_error(": unknown data-mapping \"%s\"\n", val);
 			return;
 		}
 		break;
diff --git a/sys/kern/kern_cctr.c b/sys/kern/kern_cctr.c
index fa9aac92f124..288748679f7d 100644
--- a/sys/kern/kern_cctr.c
+++ b/sys/kern/kern_cctr.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: kern_cctr.c,v 1.9 2009/01/03 03:31:23 yamt Exp $	*/
+/*	$NetBSD: kern_cctr.c,v 1.10 2019/06/24 06:24:33 skrll Exp $	*/
 
 /*-
  * Copyright (c) 2006, 2008 The NetBSD Foundation, Inc.
@@ -75,7 +75,7 @@
 
 #include <sys/cdefs.h>
 /* __FBSDID("$FreeBSD: src/sys/i386/i386/tsc.c,v 1.204 2003/10/21 18:28:34 silby Exp $"); */
-__KERNEL_RCSID(0, "$NetBSD: kern_cctr.c,v 1.9 2009/01/03 03:31:23 yamt Exp $");
+__KERNEL_RCSID(0, "$NetBSD: kern_cctr.c,v 1.10 2019/06/24 06:24:33 skrll Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -100,7 +100,7 @@ static struct timecounter cc_timecounter = {
 	.tc_poll_pps		= cc_calibrate,
 	.tc_counter_mask	= ~0u,
 	.tc_frequency		= 0,
-	.tc_name		= "unkown cycle counter",
+	.tc_name		= "unknown cycle counter",
 	/*
 	 * don't pick cycle counter automatically
 	 * if frequency changes might affect cycle counter
diff --git a/sys/net/if.h b/sys/net/if.h
index a55e60495490..920e902f2294 100644
--- a/sys/net/if.h
+++ b/sys/net/if.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: if.h,v 1.272 2019/05/10 06:53:42 msaitoh Exp $	*/
+/*	$NetBSD: if.h,v 1.273 2019/06/24 06:24:33 skrll Exp $	*/
 
 /*-
  * Copyright (c) 1999, 2000, 2001 The NetBSD Foundation, Inc.
@@ -244,7 +244,7 @@ typedef unsigned short if_index_t;
  * a:	if_afdata_lock
  * 6:	in6_multilock (global lock)
  * ::	unlocked, stable
- * ?:	unkown, maybe unsafe
+ * ?:	unknown, maybe unsafe
  *
  * Lock order: IFNET_LOCK => in6_multilock => if_afdata_lock => ifq_lock
  *   Note that currently if_afdata_lock and ifq_lock aren't held