From: Simon Horman <horms@kernel•org>
To: Jakub Kicinski <kuba@kernel•org>
Cc: davem@davemloft•net, netdev@vger•kernel.org, edumazet@google•com,
pabeni@redhat•com, andrew+netdev@lunn•ch, 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, andriy.shevchenko@intel•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
Date: Wed, 22 Apr 2026 11:53:24 +0100 [thread overview]
Message-ID: <20260422105324.GM651125@horms.kernel.org> (raw)
In-Reply-To: <20260422041846.2035118-1-kuba@kernel.org>
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 <kuba@kernel•org>
> ---
> 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
Reviewed-by: Simon Horman <horms@kernel•org>
next prev parent reply other threads:[~2026-04-22 10:53 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-22 4:18 [PATCH net-deletions v2] net: remove unused ATM protocols and legacy ATM device drivers Jakub Kicinski
2026-04-22 7:08 ` Andy Shevchenko
2026-04-23 14:54 ` Paolo Abeni
2026-04-23 19:22 ` Jakub Kicinski
2026-04-22 10:53 ` Simon Horman [this message]
2026-04-22 13:05 ` David Woodhouse
2026-04-23 2:38 ` Jakub Kicinski
2026-04-23 2:41 ` Philip Prindeville
2026-04-23 7:53 ` Andy Shevchenko
2026-04-23 11:36 ` David Woodhouse
2026-04-22 13:17 ` Nikolay Aleksandrov
2026-04-25 10:16 ` Maciej W. Rozycki
2026-04-27 0:36 ` patchwork-bot+netdevbpf
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