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Date:   Thu, 15 Oct 2020 16:50:01 +0100
From:   Marc Zyngier <maz@kernel.org>
To:     Thomas Gleixner <tglx@linutronix.de>, Pavel Machek <pavel@ucw.cz>
Cc:     kernel list <linux-kernel@vger.kernel.org>
Subject: Re: 5.10-rc0: build error in ipi.c
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On 2020-10-15 15:23, Thomas Gleixner wrote:
> On Thu, Oct 15 2020 at 12:12, Pavel Machek wrote:
> 
> Cc+ Marc

Thanks Thomas.

> 
>> I'm getting build problems in 5.10-rc0 in config for n900. ARM board.
>> 
>> CONFIG_SMP=y
>> CONFIG_SMP_ON_UP=y

On its own, this doesn't break anything with multi_v7_defconfig.

>> 
>> 
>>   CC      net/devres.o
>>   kernel/irq/ipi.c: In function ‘irq_reserve_ipi’:
>>   kernel/irq/ipi.c:84:9: error: implicit declaration of function
>>   ‘__irq_domain_alloc_irqs’; did you mean ‘irq_domain_alloc_irqs’?
>>   [-Werror=implicit-function-declaration]
>>     virq = __irq_domain_alloc_irqs(domain, virq, nr_irqs,
>>   NUMA_NO_NODE,
>>            ^~~~~~~~~~~~~~~~~~~~~~~
>> 	            irq_domain_alloc_irqs
>> 		    cc1: some warnings being treated as errors
>> 		    make[2]: *** [scripts/Makefile.build:283:
>>   kernel/irq/ipi.o] Error 1
> 
> That probably comes from the ipi as irq rework for arm/arm64.

Most probably.

Pawel, can you please stash your config somewhere where I can get it?

Thanks,

         M.
-- 
Jazz is not dead. It just smells funny...