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Date:   Wed, 21 Jun 2023 22:10:05 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Damien Le Moal <dlemoal@...nel.org>, Rob Herring <robh@...nel.org>
Cc:     Sergey Shtylyov <s.shtylyov@....ru>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        linux-ide@...r.kernel.org, linux-mips@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] ata: octeon: Add compile test support

On 6/21/23 21:26, Damien Le Moal wrote:
> On 6/22/23 12:01, Guenter Roeck wrote:
>> On 6/21/23 17:57, Damien Le Moal wrote:
>>> On 6/22/23 01:51, Guenter Roeck wrote:
>>>> On Wed, Jun 14, 2023 at 11:36:33AM -0600, Rob Herring wrote:
>>>>> Add COMPILE_TEST to enable building Cavium Octeon drivers in MIPS
>>>>> allyesconfig/allmodconfig builds. There's a dependency on MIPS headers,
>>>>> so other arches can't be enabled.
>>>>>
>>>>> Signed-off-by: Rob Herring <robh@...nel.org>
>>>>> ---
>>>>> Tested on allmodconfig build. Not sure if there's other MIPS configs
>>>>> where this doesn't work. We'll see what 0-day says.
>>>>
>>>> Odd, in next-20230621 I get:
>>>>
>>>> Building mips:allmodconfig ... failed
>>>
>>> Indeed odd. Given that this is an allmodconfig, I would assume that
>>> CONFIG_CAVIUM_OCTEON_SOC is set ?
>>>
>>
>> No, it is not. CONFIG_CAVIUM_OCTEON_SOC is a choice option,
>> meaning only one of the choices can be set, and mips:allmodconfig
>> selects a different choice.
> 
> OK. Then I think I need to drop this patch as I do not see how to allow
> COMPILE_TEST without CONFIG_CAVIUM_OCTEON_SOC being set.
> 

That is a contradiction anyway. COMPILE_TEST implies that the target is
independent of any other compile flags. If it depends on CONFIG_CAVIUM_OCTEON_SOC,
overriding that with COMPILE_TEST does not make sense.

Guenter

> Rob ?
> 
>>
>> Guenter
>>
>>>> --------------
>>>> Error log:
>>>> ERROR: modpost: "__udivdi3" [drivers/ata/pata_octeon_cf.ko] undefined!
>>>> ERROR: modpost: "octeon_get_io_clock_rate" [drivers/ata/pata_octeon_cf.ko] undefined!
>>>> ERROR: modpost: "__tracepoint_ata_bmdma_stop" [drivers/ata/pata_octeon_cf.ko] undefined!
>>>> ERROR: modpost: "__traceiter_ata_bmdma_stop" [drivers/ata/pata_octeon_cf.ko] undefined!
>>>> ERROR: modpost: "__divdi3" [drivers/ata/pata_octeon_cf.ko] undefined!
>>>> make[2]: [scripts/Makefile.modpost:144: Module.symvers] Error 1 (ignored)
>>>> make[2]: *** No rule to make target 'kernel/locking/locktorture.ko', needed by '__modfinal'.  Stop.
>>>> make[1]: [Makefile:1933: modules] Error 2 (ignored)
>>>>
>>>> Guenter
>>>
>>
> 

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