From: David Ahern <dsahern@kernel.org>
To: Kuniyuki Iwashima <kuniyu@amazon.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>
Cc: Simon Horman <horms@kernel.org>,
Kuniyuki Iwashima <kuni1840@gmail.com>,
netdev@vger.kernel.org
Subject: Re: [PATCH v2 net-next 3/7] nexthop: Move NHA_OIF validation to rtm_to_nh_config_rtnl().
Date: Thu, 20 Mar 2025 08:20:27 -0600 [thread overview]
Message-ID: <ba5f2eac-8151-4257-910b-e18b9716362b@kernel.org> (raw)
In-Reply-To: <20250319230743.65267-4-kuniyu@amazon.com>
On 3/19/25 5:06 PM, Kuniyuki Iwashima wrote:
> NHA_OIF needs to look up a device by __dev_get_by_index(),
> which requires RTNL.
>
> Let's move NHA_OIF validation to rtm_to_nh_config_rtnl().
>
> Note that the proceeding checks made the original !cfg->nh_fdb
> check redundant.
>
> NHA_FDB is set -> NHA_OIF cannot be set
> NHA_FDB is set but false -> NHA_OIF must be set
> NHA_FDB is not set -> NHA_OIF must be set
>
> Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
> ---
> net/ipv4/nexthop.c | 43 +++++++++++++++++++++++--------------------
> 1 file changed, 23 insertions(+), 20 deletions(-)
>
Reviewed-by: David Ahern <dsahern@kernel.org>
next prev parent reply other threads:[~2025-03-20 14:20 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-19 23:06 [PATCH v2 net-next 0/7] nexthop: Convert RTM_{NEW,DEL}NEXTHOP to per-netns RTNL Kuniyuki Iwashima
2025-03-19 23:06 ` [PATCH v2 net-next 1/7] nexthop: Move nlmsg_parse() in rtm_to_nh_config() to rtm_new_nexthop() Kuniyuki Iwashima
2025-03-20 3:13 ` David Ahern
2025-03-20 7:00 ` Eric Dumazet
2025-03-19 23:06 ` [PATCH v2 net-next 2/7] nexthop: Split nh_check_attr_group() Kuniyuki Iwashima
2025-03-20 7:05 ` Eric Dumazet
2025-03-20 14:20 ` David Ahern
2025-03-19 23:06 ` [PATCH v2 net-next 3/7] nexthop: Move NHA_OIF validation to rtm_to_nh_config_rtnl() Kuniyuki Iwashima
2025-03-20 7:06 ` Eric Dumazet
2025-03-20 14:20 ` David Ahern [this message]
2025-03-19 23:06 ` [PATCH v2 net-next 4/7] nexthop: Check NLM_F_REPLACE and NHA_ID in rtm_new_nexthop() Kuniyuki Iwashima
2025-03-20 7:07 ` Eric Dumazet
2025-03-20 14:20 ` David Ahern
2025-03-19 23:06 ` [PATCH v2 net-next 5/7] nexthop: Remove redundant group len check in nexthop_create_group() Kuniyuki Iwashima
2025-03-20 7:07 ` Eric Dumazet
2025-03-20 14:20 ` David Ahern
2025-03-19 23:06 ` [PATCH v2 net-next 6/7] nexthop: Convert RTM_NEWNEXTHOP to per-netns RTNL Kuniyuki Iwashima
2025-03-20 7:12 ` Eric Dumazet
2025-03-20 14:20 ` David Ahern
2025-03-19 23:06 ` [PATCH v2 net-next 7/7] nexthop: Convert RTM_DELNEXTHOP " Kuniyuki Iwashima
2025-03-20 7:12 ` Eric Dumazet
2025-03-20 14:20 ` David Ahern
2025-03-24 9:35 ` [PATCH v2 net-next 0/7] nexthop: Convert RTM_{NEW,DEL}NEXTHOP " Ido Schimmel
2025-03-24 19:03 ` Kuniyuki Iwashima
2025-03-25 15:00 ` patchwork-bot+netdevbpf
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