From: Pablo Neira Ayuso Date: Wed, 29 Aug 2012 15:58:29 +0000 (+0000) Subject: netfilter: xt_socket: fix compilation warnings with gcc 4.7 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dc3ff135fa742860da7f17a51a0f9776660067e4;p=pandora-kernel.git netfilter: xt_socket: fix compilation warnings with gcc 4.7 commit 6703aa74ad1ba2e598bb49a37f7518da1195bacb upstream. This patch fixes compilation warnings in xt_socket with gcc-4.7. In file included from net/netfilter/xt_socket.c:22:0: net/netfilter/xt_socket.c: In function ‘socket_mt6_v1’: include/net/netfilter/nf_tproxy_core.h:175:23: warning: ‘sport’ may be used uninitialized in this function [-Wmaybe-uninitialized] net/netfilter/xt_socket.c:265:16: note: ‘sport’ was declared here In file included from net/netfilter/xt_socket.c:22:0: include/net/netfilter/nf_tproxy_core.h:175:23: warning: ‘dport’ may be used uninitialized in this function [-Wmaybe-uninitialized] net/netfilter/xt_socket.c:265:9: note: ‘dport’ was declared here In file included from net/netfilter/xt_socket.c:22:0: include/net/netfilter/nf_tproxy_core.h:175:6: warning: ‘saddr’ may be used uninitialized in this function [-Wmaybe-uninitialized] net/netfilter/xt_socket.c:264:27: note: ‘saddr’ was declared here In file included from net/netfilter/xt_socket.c:22:0: include/net/netfilter/nf_tproxy_core.h:175:6: warning: ‘daddr’ may be used uninitialized in this function [-Wmaybe-uninitialized] net/netfilter/xt_socket.c:264:19: note: ‘daddr’ was declared here In file included from net/netfilter/xt_socket.c:22:0: net/netfilter/xt_socket.c: In function ‘socket_match.isra.4’: include/net/netfilter/nf_tproxy_core.h:75:2: warning: ‘protocol’ may be used uninitialized in this function [-Wmaybe-uninitialized] net/netfilter/xt_socket.c:113:5: note: ‘protocol’ was declared here In file included from include/net/tcp.h:37:0, from net/netfilter/xt_socket.c:17: include/net/inet_hashtables.h:356:45: warning: ‘sport’ may be used uninitialized in this function [-Wmaybe-uninitialized] net/netfilter/xt_socket.c:112:16: note: ‘sport’ was declared here In file included from net/netfilter/xt_socket.c:22:0: include/net/netfilter/nf_tproxy_core.h:106:23: warning: ‘dport’ may be used uninitialized in this function [-Wmaybe-uninitialized] net/netfilter/xt_socket.c:112:9: note: ‘dport’ was declared here In file included from include/net/tcp.h:37:0, from net/netfilter/xt_socket.c:17: include/net/inet_hashtables.h:356:15: warning: ‘saddr’ may be used uninitialized in this function [-Wmaybe-uninitialized] net/netfilter/xt_socket.c:111:16: note: ‘saddr’ was declared here In file included from include/net/tcp.h:37:0, from net/netfilter/xt_socket.c:17: include/net/inet_hashtables.h:356:15: warning: ‘daddr’ may be used uninitialized in this function [-Wmaybe-uninitialized] net/netfilter/xt_socket.c:111:9: note: ‘daddr’ was declared here In file included from net/netfilter/xt_socket.c:22:0: net/netfilter/xt_socket.c: In function ‘socket_mt6_v1’: include/net/netfilter/nf_tproxy_core.h:175:23: warning: ‘sport’ may be used uninitialized in this function [-Wmaybe-uninitialized] net/netfilter/xt_socket.c:268:16: note: ‘sport’ was declared here In file included from net/netfilter/xt_socket.c:22:0: include/net/netfilter/nf_tproxy_core.h:175:23: warning: ‘dport’ may be used uninitialized in this function [-Wmaybe-uninitialized] net/netfilter/xt_socket.c:268:9: note: ‘dport’ was declared here In file included from net/netfilter/xt_socket.c:22:0: include/net/netfilter/nf_tproxy_core.h:175:6: warning: ‘saddr’ may be used uninitialized in this function [-Wmaybe-uninitialized] net/netfilter/xt_socket.c:267:27: note: ‘saddr’ was declared here In file included from net/netfilter/xt_socket.c:22:0: include/net/netfilter/nf_tproxy_core.h:175:6: warning: ‘daddr’ may be used uninitialized in this function [-Wmaybe-uninitialized] net/netfilter/xt_socket.c:267:19: note: ‘daddr’ was declared here Signed-off-by: Pablo Neira Ayuso [bwh: Backported to 3.2: adjust context] Signed-off-by: Ben Hutchings --- diff --git a/net/netfilter/xt_socket.c b/net/netfilter/xt_socket.c index c4706be65add..1baf17370f41 100644 --- a/net/netfilter/xt_socket.c +++ b/net/netfilter/xt_socket.c @@ -108,9 +108,9 @@ socket_match(const struct sk_buff *skb, struct xt_action_param *par, const struct iphdr *iph = ip_hdr(skb); struct udphdr _hdr, *hp = NULL; struct sock *sk; - __be32 daddr, saddr; - __be16 dport, sport; - u8 protocol; + __be32 uninitialized_var(daddr), uninitialized_var(saddr); + __be16 uninitialized_var(dport), uninitialized_var(sport); + u8 uninitialized_var(protocol); #ifdef XT_SOCKET_HAVE_CONNTRACK struct nf_conn const *ct; enum ip_conntrack_info ctinfo; @@ -263,9 +263,9 @@ socket_mt6_v1(const struct sk_buff *skb, struct xt_action_param *par) struct ipv6hdr ipv6_var, *iph = ipv6_hdr(skb); struct udphdr _hdr, *hp = NULL; struct sock *sk; - const struct in6_addr *daddr, *saddr; - __be16 dport, sport; - int thoff, tproto; + const struct in6_addr *daddr = NULL, *saddr = NULL; + __be16 uninitialized_var(dport), uninitialized_var(sport); + int thoff, uninitialized_var(tproto); const struct xt_socket_mtinfo1 *info = (struct xt_socket_mtinfo1 *) par->matchinfo; tproto = ipv6_find_hdr(skb, &thoff, -1, NULL);