linux-kernel - Re: [REGRESSION] comedi: add HAS

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Message-ID: <03d60769-3fe1-4c62-922b-c2e4aa0415de@leemhuis.info>
Date:   Mon, 11 Sep 2023 10:29:09 +0200
From:   "Linux regression tracking #update (Thorsten Leemhuis)" 
        <regressions@...mhuis.info>
To:     Linux Regressions <regressions@...ts.linux.dev>
Cc:     Linux Stable <stable@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [REGRESSION] comedi: add HAS_IOPORT dependencies

[TLDR: This mail in primarily relevant for Linux kernel regression
tracking. See link in footer if these mails annoy you.]

On 04.09.23 16:28, Ian Abbott wrote:
> Hi,
> 
> Commit b5c75b68b7de ("comedi: add HAS_IOPORT dependencies") in v6.5-rc1
> onwards makes it impossible to select some comedi configuration options
> that were previously selectable.  In addition to adding 'depends on
> HAS_IOPORT' directives (which is OK for most of the options), it also
> changes 'select COMEDI_8254', 'select COMEDI_DAS08', 'select
> COMEDI_NI_LABPC', and 'select COMEDI_AMPLC_DIO200' directives to
> 'depends on' directives.  Since there is no other way to select those
> options it renders the options that depend on them permanently disabled.
> It also adds a dependency on HAS_IOPORT to COMEDI_PCI_DRIVERS even
> though several configuration options that depend on COMEDI_PCI_DRIVERS
> are for drivers that neither use I/O ports nor depend on modules that
> call the I/O port functions (inb()/outb() and friends).
> 
> Arnd Bergmann recommends[1] reverting the patch and following up with a
> fixed version.  I intend to do that.  Niklas Schnelle confirms[2] that
> it will not break anything.
> 
> [1] Link:
> https://lore.kernel.org/all/33c2292b-08cb-44c7-9438-07d4060976ab@app.fastmail.com
> 
> [2] Link:
> https://lore.kernel.org/all/65d620b2644e2d60b041815fa4bb544a818ae55a.camel@linux.ibm.com
> 
> #regzbot introduced: b5c75b68b7de

#regzbot fix: Revert "comedi: add HAS_IOPORT dependencies"
#regzbot monitor:
https://lore.kernel.org/all/20230905090922.3314-1-abbotti@mev.co.uk/
#regzbot ignore-activity

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)
--
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