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From: Willem de Bruijn <willemdebruijn.kernel@gmail.com>
To: Richard Gobert <richardbgobert@gmail.com>,  netdev@vger.kernel.org
Cc: davem@davemloft.net,  edumazet@google.com,  kuba@kernel.org,
	 pabeni@redhat.com,  horms@kernel.org,  corbet@lwn.net,
	 shenjian15@huawei.com,  salil.mehta@huawei.com,
	 shaojijie@huawei.com,  andrew+netdev@lunn.ch,
	 saeedm@nvidia.com,  tariqt@nvidia.com,  mbloch@nvidia.com,
	 leon@kernel.org,  ecree.xilinx@gmail.com,  dsahern@kernel.org,
	 ncardwell@google.com,  kuniyu@google.com,  shuah@kernel.org,
	 sdf@fomichev.me,  ahmed.zaki@intel.com,
	 aleksander.lobakin@intel.com,  linux-kernel@vger.kernel.org,
	 linux-net-drivers@amd.com,
	 Richard Gobert <richardbgobert@gmail.com>
Subject: Re: [PATCH net-next 1/5] net: gro: remove is_ipv6 from napi_gro_cb
Date: Fri, 15 Aug 2025 06:17:30 -0400	[thread overview]
Message-ID: <willemdebruijn.kernel.2d92c3db94507@gmail.com> (raw)
In-Reply-To: <20250814114030.7683-2-richardbgobert@gmail.com>

Richard Gobert wrote:
> Remove is_ipv6 from napi_gro_cb and use sk->sk_family instead.
> This frees up space for another ip_fixedid bit that will be added
> in the next commit.
> 
> udp_sock_create always creates either a AP_INET or a AF_INET6 socket,
> so using sk->sk_family is reliable.

In general, IPv6 socket can accept IPv4 packets. See also
cfg->ipv6_v6only in udp_sock_create6.

Not sure about fou, but are we sure that such AF_INET6 sockets
cannot receive flows with !is_ipv6.
 
> Signed-off-by: Richard Gobert <richardbgobert@gmail.com>

  parent reply	other threads:[~2025-08-15 10:17 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-14 11:40 [PATCH net-next 0/5] net: gso: restore outer ip ids correctly Richard Gobert
2025-08-14 11:40 ` [PATCH net-next 1/5] net: gro: remove is_ipv6 from napi_gro_cb Richard Gobert
2025-08-14 20:45   ` Florian Fainelli
2025-08-15 10:17   ` Willem de Bruijn [this message]
2025-08-18 11:33     ` Richard Gobert
2025-08-14 11:40 ` [PATCH net-next 2/5] net: gro: only merge packets with incrementing or fixed outer ids Richard Gobert
2025-08-14 11:40 ` [PATCH net-next 3/5] net: gso: restore ids of outer ip headers correctly Richard Gobert
2025-08-15 10:23   ` Willem de Bruijn
2025-08-15 13:00     ` Willem de Bruijn
2025-08-18 11:46       ` Richard Gobert
2025-08-18 11:58         ` Willem de Bruijn
2025-08-18 14:07           ` Richard Gobert
2025-08-14 11:40 ` [PATCH net-next 4/5] net: gro: remove unnecessary df checks Richard Gobert
2025-08-14 11:40 ` [PATCH net-next 5/5] selftests/net: test ipip packets in gro.sh Richard Gobert
2025-08-14 19:42   ` Jakub Kicinski
2025-08-18 12:06     ` Richard Gobert

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