diff options
| author | Jiri Pirko <jiri@nvidia.com> | 2023-12-01 19:01:54 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-12-04 14:42:12 -0800 |
| commit | 8ad55b1e73c4e77656e2bea68fa2b484f33a6425 (patch) | |
| tree | a08532f2838b502fd3a38b749ea2497d9434d613 /Documentation/userspace-api | |
| parent | 21f49681658dba6a9d9f0b7945af348600768d78 (diff) | |
docs: netlink: add NLMSG_DONE message format for doit actions
In case NLMSG_DONE message is sent as a reply to doit action, multiple
kernel implementation do not send anything else than struct nlmsghdr.
Add this note to the Netlink intro documentation.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Link: https://lore.kernel.org/r/20231201180154.864007-1-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'Documentation/userspace-api')
| -rw-r--r-- | Documentation/userspace-api/netlink/intro.rst | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/userspace-api/netlink/intro.rst b/Documentation/userspace-api/netlink/intro.rst index 7b1d401210ef..aacffade8f84 100644 --- a/Documentation/userspace-api/netlink/intro.rst +++ b/Documentation/userspace-api/netlink/intro.rst @@ -234,6 +234,10 @@ ACK attributes may be present:: | ** optionally extended ACK | ---------------------------------------------- +Note that some implementations may issue custom ``NLMSG_DONE`` messages +in reply to ``do`` action requests. In that case the payload is +implementation-specific and may also be absent. + .. _res_fam: Resolving the Family ID |