netdev - [PATCH net 1/3] netlink: specs: mptcp: fix if-idx attribute type

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Message-Id: <20250908-net-mptcp-misc-fixes-6-17-rc5-v1-1-5f2168a66079@kernel.org>
Date: Mon, 08 Sep 2025 23:27:27 +0200
From: "Matthieu Baerts (NGI0)" <matttbe@...nel.org>
To: Mat Martineau <martineau@...nel.org>, Geliang Tang <geliang@...nel.org>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Simon Horman <horms@...nel.org>, Donald Hunter <donald.hunter@...il.com>, 
 Davide Caratti <dcaratti@...hat.com>, Jonathan Corbet <corbet@....net>, 
 Shuah Khan <shuah@...nel.org>
Cc: netdev@...r.kernel.org, mptcp@...ts.linux.dev, 
 linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org, 
 linux-kselftest@...r.kernel.org, 
 "Matthieu Baerts (NGI0)" <matttbe@...nel.org>, stable@...r.kernel.org
Subject: [PATCH net 1/3] netlink: specs: mptcp: fix if-idx attribute type

This attribute is used as a signed number in the code in pm_netlink.c:

  nla_put_s32(skb, MPTCP_ATTR_IF_IDX, ssk->sk_bound_dev_if))

The specs should then reflect that. Note that other 'if-idx' attributes
from the same .yaml file use a signed number as well.

Fixes: bc8aeb2045e2 ("Documentation: netlink: add a YAML spec for mptcp")
Cc: stable@...r.kernel.org
Reviewed-by: Geliang Tang <geliang@...nel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@...nel.org>
---
 Documentation/netlink/specs/mptcp_pm.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/netlink/specs/mptcp_pm.yaml b/Documentation/netlink/specs/mptcp_pm.yaml
index 02f1ddcfbf1cfd81a398dd03c52bb9f281c1aa08..d15335684ec3d6256505f2b3887ce5818eb57462 100644
--- a/Documentation/netlink/specs/mptcp_pm.yaml
+++ b/Documentation/netlink/specs/mptcp_pm.yaml
@@ -256,7 +256,7 @@ attribute-sets:
         type: u32
       -
         name: if-idx
-        type: u32
+        type: s32
       -
         name: reset-reason
         type: u32

-- 
2.51.0