netdev - [PATCH net-next v2 2/4] nexthop: Only parse NHA_OP_FLAGS for dump messages that require it

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Date: Mon, 11 Mar 2024 18:23:05 +0200
From: Ido Schimmel <idosch@...dia.com>
To: <netdev@...r.kernel.org>
CC: <davem@...emloft.net>, <kuba@...nel.org>, <pabeni@...hat.com>,
	<edumazet@...gle.com>, <petrm@...dia.com>, <dsahern@...nel.org>, Ido Schimmel
	<idosch@...dia.com>
Subject: [PATCH net-next v2 2/4] nexthop: Only parse NHA_OP_FLAGS for dump messages that require it

The attribute is parsed in __nh_valid_dump_req() which is called by the
dump handlers of RTM_GETNEXTHOP and RTM_GETNEXTHOPBUCKET although it is
only used by the former and rejected by the policy of the latter.

Move the parsing to nh_valid_dump_req() which is only called by the dump
handler of RTM_GETNEXTHOP.

This is a preparation for a subsequent patch.

Signed-off-by: Ido Schimmel <idosch@...dia.com>
---

Notes:
    v2:
    * New patch

 net/ipv4/nexthop.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/net/ipv4/nexthop.c b/net/ipv4/nexthop.c
index 03bacf9c0502..573da3660cb3 100644
--- a/net/ipv4/nexthop.c
+++ b/net/ipv4/nexthop.c
@@ -3397,11 +3397,6 @@ static int __nh_valid_dump_req(const struct nlmsghdr *nlh, struct nlattr **tb,
 		return -EINVAL;
 	}
 
-	if (tb[NHA_OP_FLAGS])
-		filter->op_flags = nla_get_u32(tb[NHA_OP_FLAGS]);
-	else
-		filter->op_flags = 0;
-
 	return 0;
 }
 
@@ -3417,6 +3412,11 @@ static int nh_valid_dump_req(const struct nlmsghdr *nlh,
 	if (err < 0)
 		return err;
 
+	if (tb[NHA_OP_FLAGS])
+		filter->op_flags = nla_get_u32(tb[NHA_OP_FLAGS]);
+	else
+		filter->op_flags = 0;
+
 	return __nh_valid_dump_req(nlh, tb, filter, cb->extack);
 }
 
-- 
2.43.0