linux-kernel - Re: [tip:irq/core 12/13] drivers/irqchip/irq-vic.c:295:2: error: implicit declaration of function 'set_handle_irq'; did you mean 'vic_handle

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Date:   Tue, 27 Mar 2018 17:38:29 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Palmer Dabbelt <palmer@...ive.com>
cc:     Arnd Bergmann <arnd@...db.de>, fengguang.wu@...el.com,
        kbuild-all@...org, linux-kernel@...r.kernel.org, tipbuild@...or.com
Subject: Re: [tip:irq/core 12/13] drivers/irqchip/irq-vic.c:295:2: error:
 implicit declaration of function 'set_handle_irq'; did you mean
 'vic_handle_irq'?

On Tue, 27 Mar 2018, Palmer Dabbelt wrote:
> On Mon, 26 Mar 2018 22:27:36 PDT (-0700), tglx@...utronix.de wrote:
> > 
> > The commits in tip right now are:
> > 
> >   cc6c98485f8e ("RISC-V: Move to the new GENERIC_IRQ_MULTI_HANDLER handler")
> >   caacdbf4aa56 ("genirq: Add CONFIG_GENERIC_IRQ_MULTI_HANDLER")
> > 
> > I surely can revert them, but I don't see how they would break arm or
> > anything else.
> 
> If GENERIC_IRQ_MULTI_HANDLER is set via randconfig then set_handle_irq() is
> pulled in from the generic code, which conflicts with the definitions in arm,
> arm64, and openrisc.  The RISC-V commit depends on the genirq one.

Two ways to fix that:

 - Rename set_handle_irq() in tip:irq/core and then convert the rest of the
   tree over. A few more files touched, but nothing harmful

 - Make GENERIC_IRQ_MULTI_HANDLER depend on !IRQ_MULTI_HANDLER. That should
   cure it as well

Thanks,

	tglx