From: sashiko-bot@kernel.org
To: "Fernando Fernandez Mancera" <fmancera@suse.de>
Cc: "Christian Borntraeger" <borntraeger@linux.ibm.com>,
"Alexander Gordeev" <agordeev@linux.ibm.com>,
antonio@mandelbit.com, sven@narfation.org, sw@simonwunderlich.de,
linux-rdma@vger.kernel.org, marek.lindner@mailbox.org,
linux-scsi@vger.kernel.org, "Heiko Carstens" <hca@linux.ibm.com>,
"Anna Schumaker" <anna@kernel.org>,
mptcp@lists.linux.dev, "Jeff Layton" <jlayton@kernel.org>,
"Chuck Lever" <cel@kernel.org>,
"Vasily Gorbik" <gor@linux.ibm.com>,
linux-s390@vger.kernel.org,
linux-security-module@vger.kernel.org
Subject: Re: [PATCH 01/16 net-next v3] ipv4: introduce CONFIG_IPV4 to decouple the IPv4 stack
Date: Thu, 01 Oct 2026 14:05:05 +0000 [thread overview]
Message-ID: <20261001140505.845D41F000FF@smtp.kernel.org> (raw)
In-Reply-To: <20260930135334.4739-2-fmancera@suse.de>
> Historically, the IPv4 protocol has been linked to the core INET
> subsystem. Because shared infrastructure like the TCP/UDP engine,
> routing or INET hashtables live inside net/ipv4/, it has been impossible
> to compile a kernel with only IPv6 support.
>
> This patch introduces the CONFIG_IPV4 Kconfig symbol, which is set to
> 'def_bool y' for now. This does not allow to completely disable the
> IPv4 stack yet but it lays the necessary build-system work for that
> goal.
>
> In addition, multiple subsystems Kconfig symbols across networking
> features like tunnels, drivers and filesystems have been adjusted to
> depend on IPv4. Keep on mind that follow-up work is required to convert
> the Kconfig symbol to bool and remove the dependency on IPv4 where it
> makes sense.
>
> Acked-by: Chuck Lever <cel@kernel.org>
> Signed-off-by: Fernando Fernandez Mancera <fmancera@suse.de>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260930135334.4739-1-fmancera@suse.de?part=1
next prev parent reply other threads:[~2026-10-01 14:05 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-30 13:52 [PATCH 00/16 net-next v3] Allow compiling an IPv6-only kernel network stack Fernando Fernandez Mancera
2026-09-30 13:52 ` [PATCH 01/16 net-next v3] ipv4: introduce CONFIG_IPV4 to decouple the IPv4 stack Fernando Fernandez Mancera
2026-10-01 14:05 ` sashiko-bot [this message]
2026-09-30 13:52 ` [PATCH 02/16 net-next v3] net: core: add IPv4 fallback stubs and guards for CONFIG_IPV4=n Fernando Fernandez Mancera
2026-10-04 17:22 ` netdev-bot+sashiko
2026-09-30 13:52 ` [PATCH 03/16 net-next v3] net: inet: relocate ip_generic_getfrag and guard IPv4 socket logic Fernando Fernandez Mancera
2026-10-04 17:22 ` netdev-bot+sashiko
2026-09-30 13:52 ` [PATCH 04/16 net-next v3] tcp: move protocol agnostic TCP functions out of tcp_ipv4.c Fernando Fernandez Mancera
2026-10-04 17:22 ` netdev-bot+sashiko
2026-09-30 13:52 ` [PATCH 05/16 net-next v3] ipv4: raw: split IPv4 specific logic into raw_ipv4.c Fernando Fernandez Mancera
2026-10-04 17:22 ` netdev-bot+sashiko
2026-09-30 13:52 ` [PATCH 06/16 net-next v3] ipv4: udp: split IPv4 specific logic into udp_ipv4.c Fernando Fernandez Mancera
2026-10-04 17:22 ` netdev-bot+sashiko
2026-10-06 9:12 ` Fernando Fernandez Mancera
2026-09-30 13:52 ` [PATCH 07/16 net-next v3] ipv4: icmp: split IPv4 specific logic into icmp_ipv4.c Fernando Fernandez Mancera
2026-10-04 17:22 ` netdev-bot+sashiko
2026-09-30 13:52 ` [PATCH 08/16 net-next v3] ipv4: ping: split IPv4 specific logic into ping_ipv4.c Fernando Fernandez Mancera
2026-09-30 13:52 ` [PATCH 09/16 net-next v3] ipv4: fib: split common nexthop logic to fib_core.c Fernando Fernandez Mancera
2026-10-01 14:05 ` sashiko-bot
2026-10-04 17:22 ` netdev-bot+sashiko
2026-09-30 13:52 ` [PATCH 10/16 net-next v3] tunnels: guard IPv4 tunnel functions with CONFIG_IPV4 Fernando Fernandez Mancera
2026-09-30 13:52 ` [PATCH 11/16 net-next v3] ipv4: disable IPv4-only sysctls when CONFIG_IPV4=n Fernando Fernandez Mancera
2026-10-04 17:22 ` netdev-bot+sashiko
2026-09-30 13:52 ` [PATCH 12/16 net-next v3] netfilter: ipv4: guard ip_route_me_harder() with CONFIG_IPV4 Fernando Fernandez Mancera
2026-09-30 13:52 ` [PATCH 13/16 net-next v3] net: bridge: guard ARP/RARP proxy and suppression " Fernando Fernandez Mancera
2026-09-30 13:52 ` [PATCH 14/16 net-next v3] wifi: mac80211: replace CONFIG_INET with CONFIG_IPV4 guards Fernando Fernandez Mancera
2026-09-30 13:52 ` [PATCH 15/16 net-next v3] netlabel: cipso: introduce CONFIG_CIPSO to decouple IPv4 dependency Fernando Fernandez Mancera
2026-10-01 14:05 ` sashiko-bot
2026-10-04 17:22 ` netdev-bot+sashiko
2026-09-30 13:52 ` [PATCH 16/16 net-next v3] ipv4: make CONFIG_IPV4 boolean Fernando Fernandez Mancera
2026-10-04 17:22 ` netdev-bot+sashiko
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