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devlink: make health report on unregistered instance warn just once

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Devlink health is involved in error recovery. Machines in bad
state tend to be fairly unreliable, and occasionally get stuck
in error loops. Even with a reasonable grace period devlink health
may get a thousand reports in an hour.

In case of reporting on an unregistered devlink instance
the subsequent reports don't add much value. Switch to
WARN_ON_ONCE() to avoid flooding dmesg and fleet monitoring
dashboards.

Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20230531015523.48961-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2023-05-30 18:55:23 -07:00
parent 6f7aee27b1
commit 6f4b98147b
1 changed files with 1 additions and 1 deletions
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2
net/devlink/health.c
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@ -480,7 +480,7 @@ static void devlink_recover_notify(struct devlink_health_reporter *reporter,
int err;
WARN_ON(cmd != DEVLINK_CMD_HEALTH_REPORTER_RECOVER);
WARN_ON(!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED));
ASSERT_DEVLINK_REGISTERED(devlink);
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg)