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From: Parav Pandit <parav@nvidia.com>
To: <davem@davemloft.net>, <kuba@kernel.org>, <netdev@vger.kernel.org>
Cc: Parav Pandit <parav@nvidia.com>, Jiri Pirko <jiri@nvidia.com>
Subject: [PATCH net-next 2/2] devlink: Enhance policy to validate port type input value
Date: Mon, 21 Sep 2020 19:41:30 +0300	[thread overview]
Message-ID: <20200921164130.83720-3-parav@nvidia.com> (raw)
In-Reply-To: <20200921164130.83720-1-parav@nvidia.com>

Use range checking facility of nla_policy to validate port type
attribute input value is valid or not.

Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
---
 net/core/devlink.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/net/core/devlink.c b/net/core/devlink.c
index 4ecc68a9c7df..4494937df7eb 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -867,8 +867,6 @@ static int devlink_port_type_set(struct devlink *devlink,
 	int err;
 
 	if (devlink->ops->port_type_set) {
-		if (port_type == DEVLINK_PORT_TYPE_NOTSET)
-			return -EINVAL;
 		if (port_type == devlink_port->type)
 			return 0;
 		err = devlink->ops->port_type_set(devlink_port, port_type);
@@ -7193,7 +7191,8 @@ static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = {
 	[DEVLINK_ATTR_BUS_NAME] = { .type = NLA_NUL_STRING },
 	[DEVLINK_ATTR_DEV_NAME] = { .type = NLA_NUL_STRING },
 	[DEVLINK_ATTR_PORT_INDEX] = { .type = NLA_U32 },
-	[DEVLINK_ATTR_PORT_TYPE] = { .type = NLA_U16 },
+	[DEVLINK_ATTR_PORT_TYPE] = NLA_POLICY_RANGE(NLA_U16, DEVLINK_PORT_TYPE_AUTO,
+						    DEVLINK_PORT_TYPE_IB),
 	[DEVLINK_ATTR_PORT_SPLIT_COUNT] = { .type = NLA_U32 },
 	[DEVLINK_ATTR_SB_INDEX] = { .type = NLA_U32 },
 	[DEVLINK_ATTR_SB_POOL_INDEX] = { .type = NLA_U16 },
-- 
2.26.2


  parent reply	other threads:[~2020-09-21 16:42 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-21 16:41 [PATCH net-next 0/2] devlink: Use nla_policy to validate range Parav Pandit
2020-09-21 16:41 ` [PATCH net-next 1/2] devlink: Enhance policy to validate eswitch mode value Parav Pandit
2020-09-21 16:41 ` Parav Pandit [this message]
2020-09-21 22:47 ` [PATCH net-next 0/2] devlink: Use nla_policy to validate range Jakub Kicinski
2020-09-23  0:39 ` David Miller

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