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Bottomley" , "Martin K. Petersen" , Nilesh Javali , Manish Rangankar , Varun Prakash , Alexander Viro , Christian Brauner , Jan Kara , David Howells , Marc Dionne , Trond Myklebust , Anna Schumaker , Chuck Lever , Jeff Layton , NeilBrown , Olga Kornievskaia , Dai Ngo , Tom Talpey , Marek Lindner , Simon Wunderlich , Antonio Quartulli , Sven Eckelmann , Nikolay Aleksandrov , Pablo Neira Ayuso , Florian Westphal , Phil Sutter , Johannes Berg , Matthieu Baerts , Mat Martineau , Geliang Tang , Julian Anastasov , Aaron Conole , Eelco Chaudron , Ilya Maximets , Allison Henderson , Jamal Hadi Salim , Jiri Pirko , Marcelo Ricardo Leitner , Xin Long , "D. Wythe" , Dust Li , Sidraya Jayagond , Mahanta Jambigi , Tony Lu , Wen Gu , Jon Maloy , Tung Quang Nguyen , Steffen Klassert , Herbert Xu , Casey Schaufler , Paul Moore , James Morris , "Serge E. Hallyn" , Vikas Gupta , Bhargava Marreddy , Rajashekar Hudumula , Nicolai Buchwitz , =?UTF-8?Q?Markus_Bl=C3=B6chl?= , Arnd Bergmann , Heiner Kallweit , Florian Fainelli , Krzysztof Kozlowski , Qingfang Deng , Julian Braha , Ethan Nelson-Moore , Greg Kroah-Hartman , Eric Biggers , Ard Biesheuvel , Neal Cardwell , Kuniyuki Iwashima , Willem de Bruijn , Alyssa Ross , Joel Granados , Oleg Nesterov , linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org, intel-wired-lan@lists.osuosl.org, oss-drivers@corigine.com, linux-net-drivers@amd.com, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-wireless@vger.kernel.org, brcm80211@lists.linux.dev, brcm80211-dev-list.pdl@broadcom.com, linux-nvme@lists.infradead.org, linux-scsi@vger.kernel.org, target-devel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-afs@lists.infradead.org, linux-nfs@vger.kernel.org, b.a.t.m.a.n@lists.open-mesh.org, bridge@lists.linux.dev, netfilter-devel@vger.kernel.org, coreteam@netfilter.org, mptcp@lists.linux.dev, lvs-devel@vger.kernel.org, dev@openvswitch.org, rds-devel@oss.oracle.com, linux-sctp@vger.kernel.org, linux-s390@vger.kernel.org, tipc-discussion@lists.sourceforge.net, linux-security-module@vger.kernel.org References: <20260910144914.8025-1-fmancera@suse.de> <20260910144914.8025-2-fmancera@suse.de> Content-Language: en-US From: Fernando Fernandez Mancera In-Reply-To: <20260910144914.8025-2-fmancera@suse.de> Content-Type: text/plain; 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R_RATELIMIT(0.00)[to_ip_from(RLu5qefsf3rq4khkdydytudeq9)]; FROM_EQ_ENVFROM(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCPT_COUNT_GT_50(0.00)[133]; DBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:helo, suse.de:mid, suse.de:email] X-BeenThere: intel-wired-lan@osuosl.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Intel Wired Ethernet Linux Kernel Driver Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-wired-lan-bounces@osuosl.org On 9/10/26 4:48 PM, Fernando Fernandez Mancera wrote: > 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. > > Signed-off-by: Fernando Fernandez Mancera FWIW, I just checked and the following symbols that are currently marked as "depends on IPV4" can already be compiled without IPV4: IPV6_MIP6, IPV6_ILA and IPV6_MROUTE They will be adjusted on the next revision of the series. A re-check for all the symbols will be performed. Thanks, Fernando.