# Re: \[RFC PATCH v2 16/48\] ip, udp: Support MSG\_SPLICE\_PAGES

- From: David Howells \<dhowells@redhat.com\>
- Date: 2023-03-30 14:40:36 
- List: netdev
- Page: https://ratatoskr.run/netdev/2023/03/246595
- Thread: https://ratatoskr.run/netdev/2023/03/246383/t.md

```text
Willem de Bruijn [ref] wrote:

> > 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

```