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Date: Wed, 16 Feb 2022 07:28:28 -0800
From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH v2] parport_pc: Also enable driver for PCI systems
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To: "Maciej W. Rozycki" <macro@orcam.me.uk>
Cc: Christoph Hellwig <hch@infradead.org>, Sudip Mukherjee <sudipm.mukherjee@gmail.com>, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>, Guo Ren <guoren@kernel.org>, Paul Walmsley <paul.walmsley@sifive.com>, Palmer Dabbelt <palmer@dabbelt.com>, Albert Ou <aou@eecs.berkeley.edu>, Heiko Carstens <hca@linux.ibm.com>, Vasily Gorbik <gor@linux.ibm.com>, Christian Borntraeger <borntraeger@linux.ibm.com>, Alexander Gordeev <agordeev@linux.ibm.com>, Sven Schnelle <svens@linux.ibm.com>, Jeff Dike <jdike@addtoit.com>, Richard Weinberger <richard@nod.at>, Anton Ivanov <anton.ivanov@cambridgegreys.com>, Chris Zankel <chris@zankel.net>, Max Filippov <jcmvbkbc@gmail.com>, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-um@lists.infradead.org, linux-xtensa@linux-xtensa.org, linux-kernel@vger.kernel.org

On Tue, Feb 15, 2022 at 09:11:45AM +0000, Maciej W. Rozycki wrote:
> On Mon, 14 Feb 2022, Christoph Hellwig wrote:
> 
> > > ===================================================================
> > > --- linux-macro.orig/arch/arm64/include/asm/Kbuild
> > > +++ linux-macro/arch/arm64/include/asm/Kbuild
> > > @@ -3,6 +3,7 @@ generic-y += early_ioremap.h
> > >  generic-y += mcs_spinlock.h
> > >  generic-y += qrwlock.h
> > >  generic-y += qspinlock.h
> > > +generic-y += parport.h
> > 
> > Instead of adding generic-y just ad a mandatory-y in
> > include/asm-generic/Kbuild.
> 
>  I'm inconvinced.  Not all archs want it, 5 don't.

Which is exactly what mandatory-y is for.  Provide the asm-generic
version by default, but let architectures override it.

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