Re: [patch net-next 01/17] net: core: Make the FIB notification chain generic

On Wed, Jul 19, 2017 at 08:11:56AM -0600, David Ahern wrote:

On 7/19/17 1:02 AM, Jiri Pirko wrote:

quoted

+struct fib_notifier_ops *
+fib_notifier_ops_register(const struct fib_notifier_ops *tmpl, struct net *net)
+{
+	struct fib_notifier_ops *ops;
+	int err;
+
+	ops = kmemdup(tmpl, sizeof(*ops), GFP_KERNEL);

why allocate memory to copy the ops?

It contains a list pointer that I use to list all the registered
families in each net namespace. Same pattern used in FIB rules.