[src/trunk]: src/sys/net remove useless cast, initialize family.

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/136060847210
branches:  trunk
changeset: 827944:136060847210
user:      christos <christos%NetBSD.org@localhost>
date:      Sun Nov 19 16:59:25 2017 +0000

description:
remove useless cast, initialize family.

diffstat:

 sys/net/if.c |  7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diffs (34 lines):

diff -r 04d233151ff1 -r 136060847210 sys/net/if.c
--- a/sys/net/if.c      Sun Nov 19 14:03:35 2017 +0000
+++ b/sys/net/if.c      Sun Nov 19 16:59:25 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: if.c,v 1.397 2017/11/17 07:37:12 ozaki-r Exp $ */
+/*     $NetBSD: if.c,v 1.398 2017/11/19 16:59:25 christos Exp $        */
 
 /*-
  * Copyright (c) 1999, 2000, 2001, 2008 The NetBSD Foundation, Inc.
@@ -90,7 +90,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if.c,v 1.397 2017/11/17 07:37:12 ozaki-r Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if.c,v 1.398 2017/11/19 16:59:25 christos Exp $");
 
 #if defined(_KERNEL_OPT)
 #include "opt_inet.h"
@@ -447,13 +447,14 @@
        addrlen = ifp->if_addrlen;
        socksize = roundup(sockaddr_dl_measure(namelen, addrlen), sizeof(long));
        ifasize = sizeof(*ifa) + 2 * socksize;
-       ifa = (struct ifaddr *)malloc(ifasize, M_IFADDR, M_WAITOK|M_ZERO);
+       ifa = malloc(ifasize, M_IFADDR, M_WAITOK|M_ZERO);
 
        sdl = (struct sockaddr_dl *)(ifa + 1);
        mask = (struct sockaddr_dl *)(socksize + (char *)sdl);
 
        sockaddr_dl_init(sdl, socksize, ifp->if_index, ifp->if_type,
            ifp->if_xname, namelen, NULL, addrlen);
+       mask->sdl_family = AF_LINK;
        mask->sdl_len = sockaddr_dl_measure(namelen, 0);
        memset(&mask->sdl_data[0], 0xff, namelen);
        ifa->ifa_rtrequest = link_rtrequest;