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| author | Jiri Pirko <jiri@nvidia.com> | 2023-12-16 13:29:55 +0100 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2023-12-19 15:31:40 +0100 |
| commit | cddbff470e3318834af518168d3a917b6e975062 (patch) | |
| tree | 2932277f4dfc374f098cf39b24f0b52b89efffbe /net/devlink/port.c | |
| parent | 11280ddeae238e3ea27d153794472cfca5e8d121 (diff) | |
| download | linux-cddbff470e3318834af518168d3a917b6e975062.tar.gz linux-cddbff470e3318834af518168d3a917b6e975062.tar.bz2 linux-cddbff470e3318834af518168d3a917b6e975062.zip | |
devlink: send notifications only if there are listeners
Introduce devlink_nl_notify_need() helper and using it to check at the
beginning of notification functions to avoid overhead of composing
notification messages in case nobody listens.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'net/devlink/port.c')
| -rw-r--r-- | net/devlink/port.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/devlink/port.c b/net/devlink/port.c index f229a8699214..32f4d0331e63 100644 --- a/net/devlink/port.c +++ b/net/devlink/port.c @@ -512,7 +512,7 @@ static void devlink_port_notify(struct devlink_port *devlink_port, WARN_ON(cmd != DEVLINK_CMD_PORT_NEW && cmd != DEVLINK_CMD_PORT_DEL); - if (!__devl_is_registered(devlink)) + if (!__devl_is_registered(devlink) || !devlink_nl_notify_need(devlink)) return; msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |