linux-kernel - Re: [RFC 11/14] powerpc: Eliminate NO

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Date:	Thu, 25 Jul 2013 23:58:10 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Grant Likely <grant.likely@...retlab.ca>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Rob Herring <rob.herring@...xeda.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
	Russell King <linux@....linux.org.uk>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	Linux-Next <linux-next@...r.kernel.org>,
	Linux-Arch <linux-arch@...r.kernel.org>
Subject: Re: [RFC 11/14] powerpc: Eliminate NO_IRQ usage

On Wed, Jan 11, 2012 at 9:22 PM, Grant Likely <grant.likely@...retlab.ca> wrote:
> NO_IRQ is evil.  Stop using it in arch/powerpc and powerpc device drivers

> diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
> index 3e06696..55c6ff9 100644
> --- a/sound/soc/fsl/fsl_ssi.c
> +++ b/sound/soc/fsl/fsl_ssi.c
> @@ -666,7 +666,7 @@ static int __devinit fsl_ssi_probe(struct platform_device *pdev)
>         ssi_private->ssi_phys = res.start;
>
>         ssi_private->irq = irq_of_parse_and_map(np, 0);
> -       if (ssi_private->irq == NO_IRQ) {
> +       if (!ssi_private->irq) {
>                 dev_err(&pdev->dev, "no irq for node %s\n", np->full_name);
>                 ret = -ENXIO;
>                 goto error_iomap;

What's the plan with this patch?

This is now failing on xtensa, as it's one of the architectures that doesn't
define NO_IRQ. Only arm, c6x, mn10300, openrisc, parisc, powerpc, and sparc
define it.

sound/soc/fsl/fsl_ssi.c:705:26: error: 'NO_IRQ' undeclared (first use
in this function)
make[4]: *** [sound/soc/fsl/fsl_ssi.o] Error 1

http://kisskb.ellerman.id.au/kisskb/buildresult/9187959/

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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