Re: [PATCH net-next] net: atm: remove the ambassador driver

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On Tue, Apr 05, 2022 at 09:16:27PM -0700, Jakub Kicinski wrote:
> The driver for ATM Ambassador devices spews build warnings on
> microblaze. The virt_to_bus() calls discard the volatile keyword.
> The right thing to do would be to migrate this driver to a modern
> DMA API but it seems unlikely anyone is actually using it.
> There had been no fixes or functional changes here since
> the git era begun.
> 
> In fact it sounds like the FW loading was broken from 2008
> 'til 2012 - see commit fcdc90b025e6 ("atm: forever loop loading
> ambassador firmware").
> 
> Let's remove this driver, there isn't much changing in the APIs,
> if users come forward we can apologize and revert.
> 
> Link: https://lore.kernel.org/all/20220321144013.440d7fc0@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/
> Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
> ---
> CC: myxie@xxxxxxxxxx,gprocida@xxxxxxxxx
> CC: Jesper Juhl <jj@xxxxxxxxxxxxx>
> CC: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> CC: Chas Williams <3chas3@xxxxxxxxx> # ATM
> CC: linux-atm-general@xxxxxxxxxxxxxxxxxxxxx
> CC: tsbogend@xxxxxxxxxxxxxxxx # MIPS
> CC: linux-mips@xxxxxxxxxxxxxxx
> CC: p.zabel@xxxxxxxxxxxxxx # dunno why, get_maintainer
> ---
>  arch/mips/configs/gpr_defconfig  |    1 -
>  arch/mips/configs/mtx1_defconfig |    1 -
>  drivers/atm/Kconfig              |   25 -
>  drivers/atm/Makefile             |    1 -
>  drivers/atm/ambassador.c         | 2400 ------------------------------
>  drivers/atm/ambassador.h         |  648 --------
>  6 files changed, 3076 deletions(-)
>  delete mode 100644 drivers/atm/ambassador.c
>  delete mode 100644 drivers/atm/ambassador.h

Acked-by: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]



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