Hi,

After Jiri Benc feedback on my seconds proposal, please find a reworked patch still based on
Pablo Neira Ayuso proposal.

On this patch, I found the sender's socket was saved in netlink_unicast_kernel in NETLINK_CB(skb).sk.
This information now prevent me to look up the socket for every ack.

Also i believe it could be good to make it reach stable as it is somehow a bug fix.

Do you have any other comment ?

Best Regards
Christophe

Christophe Ricard (1):
  netlink: add NETLINK_CAP_ACK socket option

 include/uapi/linux/netlink.h |  1 +
 net/netlink/af_netlink.c     | 27 ++++++++++++++++++++++++---
 2 files changed, 25 insertions(+), 3 deletions(-)

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2.1.4