linux-kernel - Re: [RFC 28/32] PCI: make quirk using inw() depend on HAS

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Date:   Tue, 28 Dec 2021 11:28:25 -0600
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     Niklas Schnelle <schnelle@...ux.ibm.com>
Cc:     Arnd Bergmann <arnd@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        John Garry <john.garry@...wei.com>,
        Nick Hu <nickhu@...estech.com>,
        Greentime Hu <green.hu@...il.com>,
        Vincent Chen <deanbo422@...il.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>, Guo Ren <guoren@...nel.org>,
        linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
        linux-pci@...r.kernel.org, linux-riscv@...ts.infradead.org,
        linux-csky@...r.kernel.org
Subject: Re: [RFC 28/32] PCI: make quirk using inw() depend on HAS_IOPORT

On Tue, Dec 28, 2021 at 05:52:05PM +0100, Niklas Schnelle wrote:
> On Tue, 2021-12-28 at 10:35 -0600, Bjorn Helgaas wrote:
> > On Tue, Dec 28, 2021 at 04:25:25PM +0100, Niklas Schnelle wrote:
> > > On Mon, 2021-12-27 at 16:33 -0600, Bjorn Helgaas wrote:

> > > > BTW, git complains about some whitespace errors in other patches:
> > > > 
> > > >   Applying: char: impi, tpm: depend on HAS_IOPORT
> > > >   .git/rebase-apply/patch:92: trailing whitespace.
> > > > 	    If you have a TPM security chip from Atmel say Yes and it
> > > >   .git/rebase-apply/patch:93: trailing whitespace.
> > > > 	    will be accessible from within Linux.  To compile this driver
> > > >   warning: 2 lines add whitespace errors.
> > > >   Applying: video: handle HAS_IOPORT dependencies
> > > >   .git/rebase-apply/patch:23: trailing whitespace.
> > > > 
> > > >   warning: 1 line adds whitespace errors.
> > > 
> > > ... But I just tried fetching the patches with b4 on top of
> > > v5.16-rc7 and the resulting tree passes "./scripts/checkpatch.pl
> > > --git v5.16-rc7..HEAD" and has an empty diff to my branch. What
> > > tool did you use to check?
> > 
> > "git am" is what complained.  Here's what I did:
> > 
> >   $ git checkout -b wip/niklas v5.16-rc1
> 
> Ah this seems to be because my patches are against v5.16-rc7. I
> noted that in the cover letter but I guess that is easy to miss and
> might not match expectations.

I get the same complaints when applying to v5.16-rc7:

  $ git checkout -b wip/niklas3 v5.16-rc7
  $ b4 am -om/ 20211227164317.4146918-1-schnelle@...ux.ibm.com
  $ git am m/20211227_schnelle_kconfig_introduce_has_ioport_and_legacy_pci_options.mbx