Re: [PATCH] input: i8042: Remove special PowerPC handling

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Hi Michael,

On Wed, May 20, 2020 at 04:07:00PM +1000, Michael Ellerman wrote:
> [ + Dmitry & linux-input ]
> 
> Nathan Chancellor <natechancellor@xxxxxxxxx> writes:
> > This causes a build error with CONFIG_WALNUT because kb_cs and kb_data
> > were removed in commit 917f0af9e5a9 ("powerpc: Remove arch/ppc and
> > include/asm-ppc").
> >
> > ld.lld: error: undefined symbol: kb_cs
> >> referenced by i8042-ppcio.h:28 (drivers/input/serio/i8042-ppcio.h:28)
> >> input/serio/i8042.o:(__i8042_command) in archive drivers/built-in.a
> >> referenced by i8042-ppcio.h:28 (drivers/input/serio/i8042-ppcio.h:28)
> >> input/serio/i8042.o:(__i8042_command) in archive drivers/built-in.a
> >> referenced by i8042-ppcio.h:28 (drivers/input/serio/i8042-ppcio.h:28)
> >> input/serio/i8042.o:(__i8042_command) in archive drivers/built-in.a
> >
> > ld.lld: error: undefined symbol: kb_data
> >> referenced by i8042.c:309 (drivers/input/serio/i8042.c:309)
> >> input/serio/i8042.o:(__i8042_command) in archive drivers/built-in.a
> >> referenced by i8042-ppcio.h:33 (drivers/input/serio/i8042-ppcio.h:33)
> >> input/serio/i8042.o:(__i8042_command) in archive drivers/built-in.a
> >> referenced by i8042.c:319 (drivers/input/serio/i8042.c:319)
> >> input/serio/i8042.o:(__i8042_command) in archive drivers/built-in.a
> >> referenced 15 more times
> >
> > Presumably since nobody has noticed this for the last 12 years, there is
> > not anyone actually trying to use this driver so we can just remove this
> > special walnut code and use the generic header so it builds for all
> > configurations.
> >
> > Fixes: 917f0af9e5a9 ("powerpc: Remove arch/ppc and include/asm-ppc")
> > Reported-by: kbuild test robot <lkp@xxxxxxxxx>
> > Signed-off-by: Nathan Chancellor <natechancellor@xxxxxxxxx>
> > ---
> >  drivers/input/serio/i8042-ppcio.h | 57 -------------------------------
> >  drivers/input/serio/i8042.h       |  2 --
> >  2 files changed, 59 deletions(-)
> >  delete mode 100644 drivers/input/serio/i8042-ppcio.h
> 
> This LGTM.
> 
> Acked-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> (powerpc)
> 
> I assumed drivers/input/serio would be pretty quiet, but there's
> actually some commits to it in linux-next. So perhaps this should go via
> the input tree.
> 
> Dmitry do you want to take this, or should I take it via powerpc?
> 
> Original patch is here:
>   https://lore.kernel.org/lkml/20200518181043.3363953-1-natechancellor@xxxxxxxxx

I'm fine with you taking it through powerpc.

Acked-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>

Also, while I have your attention ;), could you please ack or take
https://lore.kernel.org/lkml/20191002214854.GA114387@dtor-ws/ as I
believe this is the last user or input_polled_dev API and I would like
to drop it from the tree.

Thanks!

-- 
Dmitry



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