On Wed, Jun 25, 2014 at 7:09 AM, Octavian Purdila
[off-list ref] wrote:

Since pktops is only used for IPv6 only and opts is used for IPv4
only, we can move these fields into a union and this allows us to drop
the inet6_reqsk_alloc function as after this change it becomes
equivalent with inet_reqsk_alloc.

Or use kmem_cache_zalloc() so that inet_reqsk_alloc() doesn't have
to init ->opt to NULL explicitly.