linux-kernel - Re: linux-next: Tree for Jun 2 (arch/powerpc/kernel/iommu.c)

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Date:   Thu, 15 Jun 2023 11:05:30 -0500 (CDT)
From:   Timothy Pearson <tpearson@...torengineering.com>
To:     Randy Dunlap <rdunlap@...radead.org>
Cc:     Timothy Pearson <tpearson@...torengineering.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        Alexey Kardashevskiy <aik@...abs.ru>
Subject: Re: linux-next: Tree for Jun 2 (arch/powerpc/kernel/iommu.c)



----- Original Message -----
> From: "Randy Dunlap" <rdunlap@...radead.org>
> To: "Timothy Pearson" <tpearson@...torengineering.com>, "Michael Ellerman" <mpe@...erman.id.au>
> Cc: "Stephen Rothwell" <sfr@...b.auug.org.au>, "Linux Next Mailing List" <linux-next@...r.kernel.org>, "linux-kernel"
> <linux-kernel@...r.kernel.org>, "linuxppc-dev" <linuxppc-dev@...ts.ozlabs.org>, "Alexey Kardashevskiy" <aik@...abs.ru>
> Sent: Thursday, June 15, 2023 11:00:08 AM
> Subject: Re: linux-next: Tree for Jun 2 (arch/powerpc/kernel/iommu.c)

> Hi Timothy,
> 
> On 6/3/23 20:57, Timothy Pearson wrote:
>> 
>> 
>> ----- Original Message -----
>>> From: "Michael Ellerman" <mpe@...erman.id.au>
>>> To: "Randy Dunlap" <rdunlap@...radead.org>, "Stephen Rothwell"
>>> <sfr@...b.auug.org.au>, "Linux Next Mailing List"
>>> <linux-next@...r.kernel.org>
>>> Cc: "linux-kernel" <linux-kernel@...r.kernel.org>, "linuxppc-dev"
>>> <linuxppc-dev@...ts.ozlabs.org>, "Alexey
>>> Kardashevskiy" <aik@...abs.ru>, "Timothy Pearson"
>>> <tpearson@...torengineering.com>
>>> Sent: Saturday, June 3, 2023 7:22:51 PM
>>> Subject: Re: linux-next: Tree for Jun 2 (arch/powerpc/kernel/iommu.c)
>> 
>>> Randy Dunlap <rdunlap@...radead.org> writes:
>>>> On 6/1/23 21:01, Stephen Rothwell wrote:
>>>>> Hi all,
>>>>>
>>>>> Changes since 20230601:
>>>>>
>>>>
>>>> On powerpc64, a randconfig failed with:
>>>>
>>>> In file included from ../include/linux/list.h:5,
>>>>                  from ../include/linux/preempt.h:11,
>>>>                  from ../include/linux/spinlock.h:56,
>>>>                  from ../include/linux/mmzone.h:8,
>>>>                  from ../include/linux/gfp.h:7,
>>>>                  from ../include/linux/slab.h:15,
>>>>                  from ../arch/powerpc/kernel/iommu.c:15:
>>>> ../arch/powerpc/kernel/iommu.c: In function
>>>> 'spapr_tce_setup_phb_iommus_initcall':
>>>> ../arch/powerpc/kernel/iommu.c:1391:36: error: 'hose_list' undeclared (first use
>>>> in this function); did you mean 'zonelist'?
>>>>  1391 |         list_for_each_entry(hose, &hose_list, list_node) {
>>>>       |                                    ^~~~~~~~~
>>> ...
>>>
>>> hose_list is in pci-common.c which is built when PCI=y.
>>>
>>> PSERIES and POWERNV force PCI=y.
>>>
>>> But this config has neither:
>>>
>>> # CONFIG_PPC_POWERNV is not set
>>> # CONFIG_PPC_PSERIES is not set
>>> CONFIG_HAVE_PCI=y
>>> # CONFIG_PCI is not set
>>> # CONFIG_COMMON_CLK_RS9_PCIE is not set
>>>
>>>
>>> Probably the spapr_tce code should be wrapped in an #ifdef that is only
>>> enabled when POWERNV || PSERIES is enabled.
>>>
>>> cheers
>> 
>> Sounds reasonable, I was going to look into this further over the weekend.  I
>> can put together a patch for Monday if that works?
> 
> Did you prepare a patch for this? I am still seeing this build error.
> 
> thanks.
> --
> ~Randy

Yes, it was sent in to the linuxppc-dev list some weeks ago.  Did it not arrive?