[PATCH net] netlink: specs: mptcp: fix port endianness

From: Asbjørn Sloth Tønnesen
Date: Wed Sep 11 2024 - 05:13:34 EST


The MPTCP port attribute is in host endianness, but was documented
as big-endian in the ynl specification.

Below are two examples from net/mptcp/pm_netlink.c showing that the
attribute is converted to/from host endianness for use with netlink.

Import from netlink:
addr->port = htons(nla_get_u16(tb[MPTCP_PM_ADDR_ATTR_PORT]))

Export to netlink:
nla_put_u16(skb, MPTCP_PM_ADDR_ATTR_PORT, ntohs(addr->port))

Where addr->port is defined as __be16.

No functional change intended.

Fixes: bc8aeb2045e2 ("Documentation: netlink: add a YAML spec for mptcp")
Signed-off-by: Asbjørn Sloth Tønnesen <ast@xxxxxxxxxxx>
---
Documentation/netlink/specs/mptcp_pm.yaml | 1 -
1 file changed, 1 deletion(-)

diff --git a/Documentation/netlink/specs/mptcp_pm.yaml b/Documentation/netlink/specs/mptcp_pm.yaml
index af525ed29792..30d8342cacc8 100644
--- a/Documentation/netlink/specs/mptcp_pm.yaml
+++ b/Documentation/netlink/specs/mptcp_pm.yaml
@@ -109,7 +109,6 @@ attribute-sets:
-
name: port
type: u16
- byte-order: big-endian
-
name: flags
type: u32
--
2.45.2