tree aa53029820cde8be17b80907d88432acdd19f438
parent 5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3
author Dmitry Safonov <dima@arista.com> 1600699014 +0100
committer Steffen Klassert <steffen.klassert@secunet.com> 1600930383 +0200

netlink/compat: Append NLMSG_DONE/extack to frag_list

Modules those use netlink may supply a 2nd skb, (via frag_list)
that contains an alternative data set meant for applications
using 32bit compatibility mode.

In such a case, netlink_recvmsg will use this 2nd skb instead of the
original one.

Without this patch, such compat applications will retrieve
all netlink dump data, but will then get an unexpected EOF.

Cc: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Dmitry Safonov <dima@arista.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>