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>
diff --git a/net/wimax/stack.c b/net/wimax/stack.c
index 587e162..5db7315 100644
--- a/net/wimax/stack.c
+++ b/net/wimax/stack.c
@@ -576,7 +576,7 @@ static const struct genl_multicast_group wimax_gnl_mcgrps[] = {
{ .name = "msg", },
};
-struct genl_family wimax_gnl_family = {
+struct genl_family wimax_gnl_family __ro_after_init = {
.name = "WiMAX",
.version = WIMAX_GNL_VERSION,
.hdrsize = 0,