netdev - [PATCH net-next v2 1/4] netlink: specs: nl80211: drop structs which are not uAPI

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Message-ID: <20250506194101.696272-2-kuba@kernel.org>
Date: Tue,  6 May 2025 12:40:57 -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,
	johannes@...solutions.net,
	razor@...ckwall.org,
	Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH net-next v2 1/4] netlink: specs: nl80211: drop structs which are not uAPI

C codegen will soon use structs for binary types. A handful of structs
in WiFi carry information elements from the wire, defined by the standard.
The structs are not part of uAPI, so we can't use them in C directly.
We could add them to the uAPI or add some annotation to tell the codegen
to output a local version to the user header. The former seems arbitrary
since we don't expose structs for most of the standard. The latter seems
like a lot of work for a rare occurrence. Drop the struct info for now.

Reviewed-by: Donald Hunter <donald.hunter@...il.com>
Link: https://lore.kernel.org/004030652d592b379e730be2f0344bebc4a03475.camel@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
---
 Documentation/netlink/specs/nl80211.yaml | 68 ------------------------
 1 file changed, 68 deletions(-)

diff --git a/Documentation/netlink/specs/nl80211.yaml b/Documentation/netlink/specs/nl80211.yaml
index 1ec49c3562cd..3611b11a7d8f 100644
--- a/Documentation/netlink/specs/nl80211.yaml
+++ b/Documentation/netlink/specs/nl80211.yaml
@@ -203,71 +203,6 @@ protocol: genetlink-legacy
       - scan-random-mac-addr
       - sched-scan-random-mac-addr
       - no-random-mac-addr
-  -
-    name: ieee80211-mcs-info
-    type: struct
-    members:
-      -
-        name: rx-mask
-        type: binary
-        len: 10
-      -
-        name: rx-highest
-        type: u16
-        byte-order: little-endian
-      -
-        name: tx-params
-        type: u8
-      -
-        name: reserved
-        type: binary
-        len: 3
-  -
-    name: ieee80211-vht-mcs-info
-    type: struct
-    members:
-      -
-        name: rx-mcs-map
-        type: u16
-        byte-order: little-endian
-      -
-        name: rx-highest
-        type: u16
-        byte-order: little-endian
-      -
-        name: tx-mcs-map
-        type: u16
-        byte-order: little-endian
-      -
-        name: tx-highest
-        type: u16
-        byte-order: little-endian
-  -
-    name: ieee80211-ht-cap
-    type: struct
-    members:
-      -
-        name: cap-info
-        type: u16
-        byte-order: little-endian
-      -
-        name: ampdu-params-info
-        type: u8
-      -
-        name: mcs
-        type: binary
-        struct: ieee80211-mcs-info
-      -
-        name: extended-ht-cap-info
-        type: u16
-        byte-order: little-endian
-      -
-        name: tx-bf-cap-info
-        type: u32
-        byte-order: little-endian
-      -
-        name: antenna-selection-info
-        type: u8
   -
     name: channel-type
     type: enum
@@ -761,7 +696,6 @@ protocol: genetlink-legacy
       -
         name: ht-capability-mask
         type: binary
-        struct: ieee80211-ht-cap
       -
         name: noack-map
         type: u16
@@ -1382,7 +1316,6 @@ protocol: genetlink-legacy
       -
         name: ht-mcs-set
         type: binary
-        struct: ieee80211-mcs-info
       -
         name: ht-capa
         type: u16
@@ -1395,7 +1328,6 @@ protocol: genetlink-legacy
       -
         name: vht-mcs-set
         type: binary
-        struct: ieee80211-vht-mcs-info
       -
         name: vht-capa
         type: u32
-- 
2.49.0