Re: [PATCH] drivers/pcmcia: NO_IRQ removal for electra_cf.c

From	Arnd Bergmann <arnd@arndb.de>
Newsgroups	linux.kernel
Subject	Re: [PATCH] drivers/pcmcia: NO_IRQ removal for electra_cf.c
Date	2017-03-16 11:20 +0100
Message-ID	<tlAFH-5fe-7@gated-at.bofh.it> (permalink)
References	(1 earlier) <tkSlk-7kN-37@gated-at.bofh.it> <tkU3L-8W-5@gated-at.bofh.it> <tl9Pb-307-7@gated-at.bofh.it> <tlfUC-7pB-19@gated-at.bofh.it> <tlAmm-4QJ-7@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Thu, Mar 16, 2017 at 10:55 AM, Michael Ellerman <mpe@ellerman.id.au> wrote:
> Arnd Bergmann <arnd@arndb.de> writes:
>> On Wed, Mar 15, 2017 at 6:35 AM, Michael Ellerman <mpe@ellerman.id.au> wrote:
>>> I'll do patches for everything above that's not drivers/soc or
>>> include/soc and hopefully we can hear from someone at NXP on the plans
>>> for getting the soc parts enabled on arm.
>>
>> I think the removal of the NO_IRQ references is a requirement for
>> getting the drivers working properly on ARM, as the OF platform
>> code will use '0' for invalid IRQs.
>
> OK. So the #define NO_IRQ (-1) in arch/arm/include/asm/irq.h is a red
> herring and should be ignored for anything modern?

Correct. There are a couple of older (non-DT) platforms that still rely on it,
and I also have patches for those, which I intend to revisit at some point.

     Arnd

Thread

Re: [PATCH] drivers/pcmcia: NO_IRQ removal for electra_cf.c Michael Ellerman <mpe@ellerman.id.au> - 2017-03-14 12:00 +0100
  Re: [PATCH] drivers/pcmcia: NO_IRQ removal for electra_cf.c Arnd Bergmann <arnd@arndb.de> - 2017-03-14 13:50 +0100
    Re: [PATCH] drivers/pcmcia: NO_IRQ removal for electra_cf.c Michael Ellerman <mpe@ellerman.id.au> - 2017-03-15 06:40 +0100
      Re: [PATCH] drivers/pcmcia: NO_IRQ removal for electra_cf.c Arnd Bergmann <arnd@arndb.de> - 2017-03-15 13:10 +0100
        Re: [PATCH] drivers/pcmcia: NO_IRQ removal for electra_cf.c Michael Ellerman <mpe@ellerman.id.au> - 2017-03-16 11:00 +0100
          Re: [PATCH] drivers/pcmcia: NO_IRQ removal for electra_cf.c Arnd Bergmann <arnd@arndb.de> - 2017-03-16 11:20 +0100
      Re: [PATCH] drivers/pcmcia: NO_IRQ removal for electra_cf.c Scott Wood <oss@buserror.net> - 2017-03-15 19:00 +0100
        Re: [PATCH] drivers/pcmcia: NO_IRQ removal for electra_cf.c Michael Ellerman <mpe@ellerman.id.au> - 2017-03-16 11:10 +0100

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