netdev - [PATCH iproute2-next 2/3] devlink: catch missing strings in dl_args

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Date:   Tue,  5 Nov 2019 13:17:06 -0800
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     dsahern@...il.com
Cc:     stephen@...workplumber.org, netdev@...r.kernel.org,
        oss-drivers@...ronome.com, jiri@...nulli.us,
        Jakub Kicinski <jakub.kicinski@...ronome.com>
Subject: [PATCH iproute2-next 2/3] devlink: catch missing strings in dl_args_required

Currently if dl_args_required doesn't contain a string
for a given option the fact that the option is missing
is silently ignored.

Add a catch-all case and print a generic error.

Signed-off-by: Jakub Kicinski <jakub.kicinski@...ronome.com>
---
 devlink/devlink.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/devlink/devlink.c b/devlink/devlink.c
index 682f832a064c..e05a2336787a 100644
--- a/devlink/devlink.c
+++ b/devlink/devlink.c
@@ -1157,6 +1157,10 @@ static int dl_args_finding_required_validate(uint64_t o_required,
 			return -EINVAL;
 		}
 	}
+	if (o_required & ~o_found) {
+		pr_err("BUG: unknown argument required but not found\n");
+		return -EINVAL;
+	}
 	return 0;
 }
 
-- 
2.23.0