netdev - [PATCH net-next 2/2] devlink: Modify reply of DEVLINK_CMD_HEALTH_REPORTER

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Date:   Thu, 21 Feb 2019 14:12:02 +0200
From:   Eran Ben Elisha <eranbe@...lanox.com>
To:     netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>
Cc:     Jiri Pirko <jiri@...lanox.com>, Aya Levin <ayal@...lanox.com>,
        Eran Ben Elisha <eranbe@...lanox.com>
Subject: [PATCH net-next 2/2] devlink: Modify reply of DEVLINK_CMD_HEALTH_REPORTER_GET

From: Aya Levin <ayal@...lanox.com>

Avoid sending attributes related to recovery:
DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD and
DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER in reply to
DEVLINK_CMD_HEALTH_REPORTER_GET for a reporter which didn't register a
recover operation.
These parameters can't be configured on a reporter that did not provide
a recover operation, thus not needed to return them.

Fixes: 7afe335a8bed ("devlink: Add health get command")
Signed-off-by: Aya Levin <ayal@...lanox.com>
Signed-off-by: Eran Ben Elisha <eranbe@...lanox.com>
Acked-by: Jiri Pirko <jiri@...lanox.com>
---
 net/core/devlink.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/net/core/devlink.c b/net/core/devlink.c
index 5135997ecbe7..4f31ddc883e7 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -4656,11 +4656,13 @@ devlink_nl_health_reporter_fill(struct sk_buff *msg,
 	if (nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_RECOVER_COUNT,
 			      reporter->recovery_count, DEVLINK_ATTR_PAD))
 		goto reporter_nest_cancel;
-	if (nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD,
+	if (reporter->ops->recover &&
+	    nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD,
 			      reporter->graceful_period,
 			      DEVLINK_ATTR_PAD))
 		goto reporter_nest_cancel;
-	if (nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER,
+	if (reporter->ops->recover &&
+	    nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER,
 		       reporter->auto_recover))
 		goto reporter_nest_cancel;
 	if (reporter->dump_fmsg &&
-- 
2.17.1