linux-kernel - Re: [PATCH 06/16] arch: remove tile port

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Message-ID: <2f2e0cd4-02ca-0e01-7003-e519a7706ee4@alum.mit.edu>
Date:   Thu, 15 Mar 2018 21:23:46 -0400
From:   Chris Metcalf <metcalf@...m.mit.edu>
To:     Arnd Bergmann <arnd@...db.de>, linux-arch@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>
Subject: Re: [PATCH 06/16] arch: remove tile port

On 3/14/2018 10:36 AM, Arnd Bergmann wrote:
> The Tile architecture port was added by Chris Metcalf in 2010, and
> maintained until early 2018 when he orphaned it due to his departure
> from Mellanox, and nobody else stepped up to maintain it. The product
> line is still around in the form of the BlueField SoC, but no longer
> uses the Tile architecture.
>
> There are also still products for sale with Tile-GX SoCs, notably the
> Mikrotik CCR router family. The products all use old (linux-3.3) kernels
> with lots of patches and won't be upgraded by their manufacturers. There
> have been efforts to port both OpenWRT and Debian to these, but both
> projects have stalled and are very unlikely to be continued in the future.
>
> Given that we are reasonably sure that nobody is still using the port
> with an upstream kernel any more, it seems better to remove it now while
> the port is in a good shape than to let it bitrot for a few years first.

Arnd, thanks for dealing with this.

There are a number of tile-specific driver files that are mostly called out
in the MAINTAINERS file.  I would expect you should also delete those.

-F:    drivers/char/tile-srom.c
-F:    drivers/edac/tile_edac.c
-F:    drivers/net/ethernet/tile/
-F:    drivers/rtc/rtc-tile.c
-F:    drivers/tty/hvc/hvc_tile.c
-F:    drivers/tty/serial/tilegx.c
-F:    drivers/usb/host/*-tilegx.c
-F:    include/linux/usb/tilegx.h

Chris