diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2016-10-24 14:40:05 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-10-27 22:16:09 +0200 |
| commit | 56989f6d8568c21257dcec0f5e644d5570ba3281 (patch) | |
| tree | 60a6b44865e68e25dbc8bcc38d0000e12106f2d8 /net/l2tp | |
| parent | genetlink: use idr to track families (diff) | |
| download | linux-56989f6d8568c21257dcec0f5e644d5570ba3281.tar.xz linux-56989f6d8568c21257dcec0f5e644d5570ba3281.zip | |
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.c | 4 |
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); |