linux-kernel - Re: [patch V2 01/23] powerpc/4xx: Remove MSI support which never worked

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Date:   Wed, 8 Dec 2021 11:44:39 +0100
From:   Cédric Le Goater <clg@...d.org>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Michael Ellerman <mpe@...erman.id.au>,
        LKML <linux-kernel@...r.kernel.org>
CC:     Bjorn Helgaas <helgaas@...nel.org>, Marc Zygnier <maz@...nel.org>,
        Alex Williamson <alex.williamson@...hat.com>,
        Kevin Tian <kevin.tian@...el.com>,
        Jason Gunthorpe <jgg@...dia.com>,
        Megha Dey <megha.dey@...el.com>,
        Ashok Raj <ashok.raj@...el.com>, <linux-pci@...r.kernel.org>,
        Paul Mackerras <paulus@...ba.org>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        <linuxppc-dev@...ts.ozlabs.org>, Juergen Gross <jgross@...e.com>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        <linux-mips@...r.kernel.org>, Kalle Valo <kvalo@...eaurora.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        <sparclinux@...r.kernel.org>, <x86@...nel.org>,
        <xen-devel@...ts.xenproject.org>, <ath11k@...ts.infradead.org>,
        Wei Liu <wei.liu@...nel.org>, <linux-hyperv@...r.kernel.org>,
        Christian Borntraeger <borntraeger@...ibm.com>,
        Heiko Carstens <hca@...ux.ibm.com>
Subject: Re: [patch V2 01/23] powerpc/4xx: Remove MSI support which never
 worked

On 12/7/21 21:42, Thomas Gleixner wrote:
> Cedric,
> 
> On Tue, Dec 07 2021 at 16:50, Cédric Le Goater wrote:
>> On 12/7/21 12:36, Michael Ellerman wrote:
>>>
>>> This patch should drop those selects I guess. Can you send an
>>> incremental diff for Thomas to squash in?
>>
>> Sure.
>>
>>> Removing all the tendrils in various device tree files will probably
>>> require some archaeology, and it should be perfectly safe to leave those
>>> in the tree with the driver gone. So I think we can do that as a
>>> subsequent patch, rather than in this series.
>>
>> Here are the changes. Compiled tested with ppc40x and ppc44x defconfigs.
> 
> < Lots of patch skipped />
>> @@ -141,7 +138,6 @@ config REDWOOD
>>    	select FORCE_PCI
>>    	select PPC4xx_PCI_EXPRESS
>>    	select PCI_MSI
>> -	select PPC4xx_MSI
>>    	help
>>    	  This option enables support for the AMCC PPC460SX Redwood board.
> 
> While that is incremental it certainly is worth a patch on it's
> own. Could you add a proper changelog and an SOB please?

Here you are.

  https://github.com/legoater/linux/commit/75d2764b11fe8f6d8bf50d60a3feb599ce27b16d

Thanks,

C.