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authorJohannes Berg <johannes.berg@intel.com>2016-10-24 14:40:05 +0200
committerDavid S. Miller <davem@davemloft.net>2016-10-27 16:16:09 -0400
commit56989f6d8568c21257dcec0f5e644d5570ba3281 (patch)
tree60a6b44865e68e25dbc8bcc38d0000e12106f2d8 /net/l2tp
parent2ae0f17df1cd52aafd1ab0415ea1f1dd56dc0e2a (diff)
genetlink: mark families as __ro_after_init
Now genl_register_family() is the only thing (other than the users themselves, perhaps, but I didn't find any doing that) writing to the family struct. In all families that I found, genl_register_family() is only called from __init functions (some indirectly, in which case I've add __init annotations to clarifly things), so all can actually be marked __ro_after_init. This protects the data structure from accidental corruption. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/l2tp')
-rw-r--r--net/l2tp/l2tp_netlink.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/l2tp/l2tp_netlink.c b/net/l2tp/l2tp_netlink.c
index e4e8c0769a6b..59aa2d204e4a 100644
--- a/net/l2tp/l2tp_netlink.c
+++ b/net/l2tp/l2tp_netlink.c
@@ -970,7 +970,7 @@ static const struct genl_ops l2tp_nl_ops[] = {
},
};
-static struct genl_family l2tp_nl_family = {
+static struct genl_family l2tp_nl_family __ro_after_init = {
.name = L2TP_GENL_NAME,
.version = L2TP_GENL_VERSION,
.hdrsize = 0,
@@ -1016,7 +1016,7 @@ void l2tp_nl_unregister_ops(enum l2tp_pwtype pw_type)
}
EXPORT_SYMBOL_GPL(l2tp_nl_unregister_ops);
-static int l2tp_nl_init(void)
+static int __init l2tp_nl_init(void)
{
pr_info("L2TP netlink interface\n");
return genl_register_family(&l2tp_nl_family);