From cddbff470e3318834af518168d3a917b6e975062 Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Sat, 16 Dec 2023 13:29:55 +0100 Subject: 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 Signed-off-by: Paolo Abeni --- net/devlink/region.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/devlink/region.c') diff --git a/net/devlink/region.c b/net/devlink/region.c index b65181aa269a..bf61312f64bd 100644 --- a/net/devlink/region.c +++ b/net/devlink/region.c @@ -235,7 +235,7 @@ static void devlink_nl_region_notify(struct devlink_region *region, WARN_ON(cmd != DEVLINK_CMD_REGION_NEW && cmd != DEVLINK_CMD_REGION_DEL); - if (!__devl_is_registered(devlink)) + if (!__devl_is_registered(devlink) || !devlink_nl_notify_need(devlink)) return; msg = devlink_nl_region_notify_build(region, snapshot, cmd, 0, 0); -- cgit v1.2.3