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X-CSE-ConnectionGUID: 5PPHXyeSRKqbIKqpMBKzhQ== X-CSE-MsgGUID: PnfuuJWfTimtnAHzKVFarA== X-IronPort-AV: E=McAfee;i="6800,10657,11763"; a="77664717" X-IronPort-AV: E=Sophos;i="6.23,192,1770624000"; d="scan'208";a="77664717" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Apr 2026 00:09:07 -0700 X-CSE-ConnectionGUID: fjM2gdKWR9eNgwZD5Z38eQ== X-CSE-MsgGUID: LjAD8xsKRN6CT5YLUknGHA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,192,1770624000"; d="scan'208";a="225777795" Received: from smoticic-mobl1.ger.corp.intel.com (HELO localhost) ([10.245.245.201]) by fmviesa009-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Apr 2026 00:08:59 -0700 Date: Wed, 22 Apr 2026 10:08:57 +0300 From: Andy Shevchenko To: Jakub Kicinski Cc: davem@davemloft.net, netdev@vger.kernel.org, edumazet@google.com, pabeni@redhat.com, andrew+netdev@lunn.ch, horms@kernel.org, corbet@lwn.net, skhan@linuxfoundation.org, linux@armlinux.org.uk, tsbogend@alpha.franken.de, maddy@linux.ibm.com, mpe@ellerman.id.au, npiggin@gmail.com, chleroy@kernel.org, 3chas3@gmail.com, razor@blackwall.org, idosch@nvidia.com, jani.nikula@intel.com, mchehab+huawei@kernel.org, tytso@mit.edu, herbert@gondor.apana.org.au, geert@linux-m68k.org, ebiggers@kernel.org, johannes.berg@intel.com, jonathan.cameron@huawei.com, kees@kernel.org, kuniyu@google.com, fourier.thomas@gmail.com, rdunlap@infradead.org, akpm@linux-foundation.org, linux-doc@vger.kernel.org, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, bridge@lists.linux.dev, dwmw2@infradead.org Subject: Re: [PATCH net-deletions v2] net: remove unused ATM protocols and legacy ATM device drivers Message-ID: References: <20260422041846.2035118-1-kuba@kernel.org> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260422041846.2035118-1-kuba@kernel.org> Organization: Intel Finland Oy - BIC 0357606-4 - c/o Alberga Business Park, 6 krs, Bertel Jungin Aukio 5, 02600 Espoo On Tue, Apr 21, 2026 at 09:18:44PM -0700, Jakub Kicinski wrote: > Remove the ATM protocol modules and PCI/SBUS ATM device drivers > that are no longer in active use. > > The ATM core protocol stack, PPPoATM, BR2684, and USB DSL modem > drivers (drivers/usb/atm/) are retained in-tree to maintain PPP > over ATM (PPPoA) and PPPoE-over-BR2684 support for DSL connections. > > Removed ATM protocol modules: > - net/atm/clip.c - Classical IP over ATM (RFC 2225) > - net/atm/lec.c - LAN Emulation Client (LANE) > - net/atm/mpc.c, mpoa_caches.c, mpoa_proc.c - Multi-Protocol Over ATM > > Removed PCI/SBUS ATM device drivers (drivers/atm/): > - adummy, atmtcp - software/testing ATM devices > - eni - Efficient Networks ENI155P (OC-3, ~1995) > - fore200e - FORE Systems 200E PCI/SBUS (OC-3, ~1999) > - he - ForeRunner HE (OC-3/OC-12, ~2000) > - idt77105 - IDT 77105 25 Mbps ATM PHY > - idt77252 - IDT 77252 NICStAR II (OC-3, ~2000) > - iphase - Interphase ATM PCI (OC-3/DS3/E3) > - lanai - Efficient Networks Speedstream 3010 > - nicstar - IDT 77201 NICStAR (155/25 Mbps, ~1999) > - solos-pci - Traverse Technologies ADSL2+ PCI > - suni - PMC S/UNI SONET PHY library > > Also clean up references in: > - net/bridge/ - remove ATM LANE hook (br_fdb_test_addr_hook, > br_fdb_test_addr) > - net/core/dev.c - remove br_fdb_test_addr_hook export > - defconfig files - remove ATM driver config options > > The removed code is moved to an out-of-tree module package (mod-orphan). > > Signed-off-by: Jakub Kicinski > --- > v2: > - keep BR2684 > - correct the claim that Traverse Technologies is defunct, > I'm still deleting the solos driver, chances are nobody uses it. > Easy enough to revert back in since core is still around. > The guiding principle is to keep USB modems and delete > the rest as USB ADSL2+ CPEs were most popular historically. > v1: https://lore.kernel.org/20260421021943.1295109-1-kuba@kernel.org > > CC: corbet@lwn.net > CC: skhan@linuxfoundation.org > CC: linux@armlinux.org.uk > CC: tsbogend@alpha.franken.de > CC: maddy@linux.ibm.com > CC: mpe@ellerman.id.au > CC: npiggin@gmail.com > CC: chleroy@kernel.org > CC: 3chas3@gmail.com > CC: razor@blackwall.org > CC: idosch@nvidia.com > CC: jani.nikula@intel.com > CC: mchehab+huawei@kernel.org > CC: tytso@mit.edu > CC: herbert@gondor.apana.org.au > CC: geert@linux-m68k.org > CC: ebiggers@kernel.org > CC: johannes.berg@intel.com > CC: jonathan.cameron@huawei.com > CC: kees@kernel.org > CC: kuniyu@google.com > CC: fourier.thomas@gmail.com > CC: andriy.shevchenko@intel.com > CC: rdunlap@infradead.org > CC: akpm@linux-foundation.org > CC: linux-doc@vger.kernel.org > CC: linux-mips@vger.kernel.org > CC: linuxppc-dev@lists.ozlabs.org > CC: bridge@lists.linux.dev > CC: dwmw2@infradead.org > CC: herbert@gondor.apana.org.au Acked-by: Andy Shevchenko P.S. Since it's almost removal and it will go via netdev tree (same tree you are maintaining, I suppose) the -D would have a big help to review the changes (and not see removals at all, as 32k lines of one email is too much). -- With Best Regards, Andy Shevchenko