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Message-ID: <20240324223455.1342824-344-sashal@kernel.org>
Date: Sun, 24 Mar 2024 18:28:42 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: William Tu <witu@...dia.com>,
	Jiri Pirko <jiri@...dia.com>,
	Simon Horman <horms@...nel.org>,
	Jakub Kicinski <kuba@...nel.org>,
	Sasha Levin <sashal@...nel.org>
Subject: [PATCH 6.8 343/715] devlink: Fix length of eswitch inline-mode

From: William Tu <witu@...dia.com>

[ Upstream commit 8f4cd89bf10607de08231d6d91a73dd63336808e ]

Set eswitch inline-mode to be u8, not u16. Otherwise, errors below

$ devlink dev eswitch set pci/0000:08:00.0 mode switchdev \
  inline-mode network
    Error: Attribute failed policy validation.
    kernel answers: Numerical result out of rang
    netlink: 'devlink': attribute type 26 has an invalid length.

Fixes: f2f9dd164db0 ("netlink: specs: devlink: add the remaining command to generate complete split_ops")
Signed-off-by: William Tu <witu@...dia.com>
Reviewed-by: Jiri Pirko <jiri@...dia.com>
Reviewed-by: Simon Horman <horms@...nel.org>
Link: https://lore.kernel.org/r/20240310164547.35219-1-witu@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 Documentation/netlink/specs/devlink.yaml | 2 +-
 net/devlink/netlink_gen.c                | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/netlink/specs/devlink.yaml b/Documentation/netlink/specs/devlink.yaml
index cf6eaa0da821b..09fbb4c03fc8d 100644
--- a/Documentation/netlink/specs/devlink.yaml
+++ b/Documentation/netlink/specs/devlink.yaml
@@ -290,7 +290,7 @@ attribute-sets:
         enum: eswitch-mode
       -
         name: eswitch-inline-mode
-        type: u16
+        type: u8
         enum: eswitch-inline-mode
       -
         name: dpipe-tables
diff --git a/net/devlink/netlink_gen.c b/net/devlink/netlink_gen.c
index c81cf2dd154f3..f9786d51f68f9 100644
--- a/net/devlink/netlink_gen.c
+++ b/net/devlink/netlink_gen.c
@@ -198,7 +198,7 @@ static const struct nla_policy devlink_eswitch_set_nl_policy[DEVLINK_ATTR_ESWITC
 	[DEVLINK_ATTR_BUS_NAME] = { .type = NLA_NUL_STRING, },
 	[DEVLINK_ATTR_DEV_NAME] = { .type = NLA_NUL_STRING, },
 	[DEVLINK_ATTR_ESWITCH_MODE] = NLA_POLICY_MAX(NLA_U16, 1),
-	[DEVLINK_ATTR_ESWITCH_INLINE_MODE] = NLA_POLICY_MAX(NLA_U16, 3),
+	[DEVLINK_ATTR_ESWITCH_INLINE_MODE] = NLA_POLICY_MAX(NLA_U8, 3),
 	[DEVLINK_ATTR_ESWITCH_ENCAP_MODE] = NLA_POLICY_MAX(NLA_U8, 1),
 };
 
-- 
2.43.0


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