Willem de Bruijn [off-list ref] wrote:

quoted

diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c

A non-RFC version would require the same for ipv6, of course.

I missed the fact that ipv6 had it's own version of __ip_append_data() despite
sharing tcp_sendmsg().  Could __ip_append_data() and __ip6_append_data() be
shared?  I guess that the v6_cork, the flowi6 and the ipcm6_cookie might
prevent that.

David