netdev - [PATCH net-next v2 04/13] netlink: specs: rt-route: remove the fixed members from attrs

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Message-ID: <20250410014658.782120-5-kuba@kernel.org>
Date: Wed,  9 Apr 2025 18:46:49 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org,
	edumazet@...gle.com,
	pabeni@...hat.com,
	andrew+netdev@...n.ch,
	horms@...nel.org,
	donald.hunter@...il.com,
	jacob.e.keller@...el.com,
	yuyanghuang@...gle.com,
	sdf@...ichev.me,
	gnault@...hat.com,
	nicolas.dichtel@...nd.com,
	petrm@...dia.com,
	Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH net-next v2 04/13] netlink: specs: rt-route: remove the fixed members from attrs

The purpose of the attribute list is to list the attributes
which will be included in a given message to shrink the objects
for families with huge attr spaces. Fixed headers are always
present in their entirety (between netlink header and the attrs)
so there's no point in listing their members. Current C codegen
doesn't expect them and tries to look them up in the attribute space.

Reviewed-by: Jacob Keller <jacob.e.keller@...el.com>
Reviewed-by: Donald Hunter <donald.hunter@...il.com>
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
---
 Documentation/netlink/specs/rt-route.yaml | 15 +--------------
 1 file changed, 1 insertion(+), 14 deletions(-)

diff --git a/Documentation/netlink/specs/rt-route.yaml b/Documentation/netlink/specs/rt-route.yaml
index 6fa3fa24305e..c7c6f776ab2f 100644
--- a/Documentation/netlink/specs/rt-route.yaml
+++ b/Documentation/netlink/specs/rt-route.yaml
@@ -255,11 +255,8 @@ protonum: 0
         request:
           value: 26
           attributes:
-            - rtm-family
             - src
-            - rtm-src-len
             - dst
-            - rtm-dst-len
             - iif
             - oif
             - ip-proto
@@ -271,15 +268,6 @@ protonum: 0
         reply:
           value: 24
           attributes: &all-route-attrs
-            - rtm-family
-            - rtm-dst-len
-            - rtm-src-len
-            - rtm-tos
-            - rtm-table
-            - rtm-protocol
-            - rtm-scope
-            - rtm-type
-            - rtm-flags
             - dst
             - src
             - iif
@@ -311,8 +299,7 @@ protonum: 0
       dump:
         request:
           value: 26
-          attributes:
-            - rtm-family
+          attributes: []
         reply:
           value: 24
           attributes: *all-route-attrs
-- 
2.49.0