path: root/net/ipv6/addrlabel.c
diff options
authorEric W. Biederman <ebiederm@xmission.com>2015-03-11 23:06:44 -0500
committerDavid S. Miller <davem@davemloft.net>2015-03-12 14:39:40 -0400
commit0c5c9fb55106333e773de8c9dd321fa8240caeb3 (patch)
treeda550b771a52ba583eb97c1ad00fffbf3ae17f73 /net/ipv6/addrlabel.c
parentefd7ef1c1929d7a0329d4349252863c04d6f1729 (diff)
net: Introduce possible_net_t
Having to say > #ifdef CONFIG_NET_NS > struct net *net; > #endif in structures is a little bit wordy and a little bit error prone. Instead it is possible to say: > typedef struct { > #ifdef CONFIG_NET_NS > struct net *net; > #endif > } possible_net_t; And then in a header say: > possible_net_t net; Which is cleaner and easier to use and easier to test, as the possible_net_t is always there no matter what the compile options. Further this allows read_pnet and write_pnet to be functions in all cases which is better at catching typos. This change adds possible_net_t, updates the definitions of read_pnet and write_pnet, updates optional struct net * variables that write_pnet uses on to have the type possible_net_t, and finally fixes up the b0rked users of read_pnet and write_pnet. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/addrlabel.c')
1 files changed, 2 insertions, 6 deletions
diff --git a/net/ipv6/addrlabel.c b/net/ipv6/addrlabel.c
index 59c793040498..3cc50e2d3bf5 100644
--- a/net/ipv6/addrlabel.c
+++ b/net/ipv6/addrlabel.c
@@ -29,9 +29,7 @@
* Policy Table
struct ip6addrlbl_entry {
- struct net *lbl_net;
+ possible_net_t lbl_net;
struct in6_addr prefix;
int prefixlen;
int ifindex;
@@ -237,9 +235,7 @@ static struct ip6addrlbl_entry *ip6addrlbl_alloc(struct net *net,
newp->addrtype = addrtype;
newp->label = label;
- newp->lbl_net = net;
+ write_pnet(&newp->lbl_net, net);
atomic_set(&newp->refcnt, 1);
return newp;