- Remove (void) casts
- Make WARNS?= 6 clean
- Add WARNS?= 6
Index: src/sbin/mdmfs/mdmfs.c
===================================================================
--- src/sbin/mdmfs/mdmfs.c	(revision 106)
+++ src/sbin/mdmfs/mdmfs.c	(revision 107)
@@ -97,11 +97,12 @@
 	void *set;
 
 	/* Misc. initialization. */
-	(void)memset(&mi, '\0', sizeof(mi));
+	memset(&mi, '\0', sizeof(mi));
 	detach = true;
 	softdep = true;
 	autounit = false;
 	have_mdtype = false;
+	mdtype = MD_SWAP;
 	mdname = MD_NAME;
 	mdnamelen = strlen(mdname);
 	/*
@@ -257,13 +258,11 @@
 		unit = -1;
 	} else {
 		unit = strtoul(unitstr, &p, 10);
-		if (unit == (unsigned)ULONG_MAX || *p != '\0')
+		if ((unsigned)unit == (unsigned)ULONG_MAX || *p != '\0')
 			errx(1, "bad device unit: %s", unitstr);
 	}
 
 	mtpoint = argv[1];
-	if (!have_mdtype)
-		mdtype = MD_SWAP;
 	if (softdep)
 		argappend(&newfs_arg, "-U");
 
@@ -405,7 +404,7 @@
 	strncpy(linebuf, linep + mdnamelen, linelen);
 	linebuf[linelen] = '\0';
 	unit = strtoul(linebuf, &p, 10);
-	if (unit == (unsigned)ULONG_MAX || *p != '\n')
+	if ((unsigned)unit == (unsigned)ULONG_MAX || *p != '\n')
 		errx(1, "unexpected output from mdconfig (attach)");
 
 	fclose(sfd);
@@ -610,11 +609,11 @@
 		 * and the latter for the would-be call inside the
 		 * loop.
 		 */
-		(void)fprintf(stderr, "DEBUG: running:");
+		fprintf(stderr, "DEBUG: running:");
 		/* Should be equivilent to 'cmd' (before strsep, of course). */
 		for (i = 0; argv[i] != NULL; i++)
-			(void)fprintf(stderr, " %s", argv[i]);
-		(void)fprintf(stderr, "\n");
+			fprintf(stderr, " %s", argv[i]);
+		fprintf(stderr, "\n");
 	}
 
 	/* Create a pipe if necessary and fork the helper program. */
@@ -646,7 +645,7 @@
 				err(1, "dup2");
 		}
 
-		(void)execv(argv[0], argv);
+		execv(argv[0], argv);
 		warn("exec: %s", argv[0]);
 		_exit(-1);
 	case -1:
Index: src/sbin/mdmfs/Makefile
===================================================================
--- src/sbin/mdmfs/Makefile	(revision 106)
+++ src/sbin/mdmfs/Makefile	(revision 107)
@@ -4,5 +4,6 @@
 LINKS=		${BINDIR}/${PROG} ${BINDIR}/mount_mfs
 MAN=		mdmfs.8
 MLINKS+=	mdmfs.8 mount_mfs.8
+WARNS?=		6
 
 .include <bsd.prog.mk>