netdev - [PATCH net] neighbour: add RTNL_FLAG_DUMP_SPLIT_NLM_DONE to RTM

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Message-ID: <20240613141215.2122412-1-maze@google.com>
Date: Thu, 13 Jun 2024 07:12:15 -0700
From: "Maciej Żenczykowski" <maze@...gle.com>
To: "Maciej Żenczykowski" <zenczykowski@...il.com>
Cc: Linux Network Development Mailing List <netdev@...r.kernel.org>, "David S . Miller" <davem@...emloft.net>, 
	Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
	"Maciej Żenczykowski" <maze@...gle.com>
Subject: [PATCH net] neighbour: add RTNL_FLAG_DUMP_SPLIT_NLM_DONE to RTM_GETNEIGH

without this Android's net test, available at:
  https://cs.android.com/android/platform/superproject/main/+/main:kernel/tests/net/test/
run via:
  /...aosp-tests.../net/test/run_net_test.sh --builder neighbour_test.py
fails with:
  TypeError: NLMsgHdr requires a bytes object of length 16, got 4

Fixes: 3e41af90767d ("rtnetlink: use xarray iterator to implement rtnl_dump_ifinfo()")
Fixes: cdb2f80f1c10 ("inet: use xa_array iterator to implement inet_dump_ifaddr()")
Cc: Jakub Kicinski <kuba@...nel.org>
Cc: Eric Dumazet <edumazet@...gle.com>
Cc: David S. Miller <davem@...emloft.net>
Signed-off-by: Maciej Żenczykowski <maze@...gle.com>
---
 net/core/neighbour.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 45fd88405b6b..e1d12c6ac5b6 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -3892,7 +3892,7 @@ static int __init neigh_init(void)
 	rtnl_register(PF_UNSPEC, RTM_NEWNEIGH, neigh_add, NULL, 0);
 	rtnl_register(PF_UNSPEC, RTM_DELNEIGH, neigh_delete, NULL, 0);
 	rtnl_register(PF_UNSPEC, RTM_GETNEIGH, neigh_get, neigh_dump_info,
-		      RTNL_FLAG_DUMP_UNLOCKED);
+		      RTNL_FLAG_DUMP_UNLOCKED | RTNL_FLAG_DUMP_SPLIT_NLM_DONE);
 
 	rtnl_register(PF_UNSPEC, RTM_GETNEIGHTBL, NULL, neightbl_dump_info,
 		      0);
-- 
2.45.2.505.gda0bf45e8d-goog