Subject: Re: linux-next: build failure after merge of the akpm tree

From: Michael Ellerman <[email-masked]>
Date: Mon, 25 Jan 2016 20:40:14 +1100

On Mon, 2016-01-25 at 10:29 +0100, Takashi Iwai wrote:
> On Fri, 22 Jan 2016 03:40:45 +0100, Stephen Rothwell wrote:
> > diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
> > index 50693c867e71..ee5f36b9c787 100644
> > --- a/sound/soc/codecs/Kconfig
> > +++ b/sound/soc/codecs/Kconfig
> > @@ -13,6 +13,7 @@ menu "CODEC drivers"
> >  config SND_SOC_ALL_CODECS
> >  	tristate "Build all ASoC CODEC drivers"
> >  	depends on COMPILE_TEST
> > +	depends on !PPC
> >  	select SND_SOC_88PM860X if MFD_88PM860X
> >  	select SND_SOC_L3
> >  	select SND_SOC_AB8500_CODEC if ABX500_CORE
>
> Suppressing this whole is an overreaction, IMO.  It should suffice
> just to disable compile-testing Intel driver.
> How about the patch below?
>
>
> thanks,
>
> Takashi
>
> -- 8< --
> From: Takashi Iwai <[email-masked]>
> Subject: [PATCH] ASoC: intel: suppress compile-test with PowerPC
>
> Since some ioctl in compress offload API is broken for PPC (the struct
> size overflows), now we get actually the build error.
>
> Until we get the proper solution (e.g. alternative ioctl), let's
> disable the build of Intel ASoC driver that is the only driver who
> enables SND_SOC_COMPRESS (and eventually SND_COMPRESS_OFFLOAD) in the
> mainline tree.
>
> Signed-off-by: Takashi Iwai <[email-masked]>
> ---
>  sound/soc/intel/Kconfig | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/sound/soc/intel/Kconfig b/sound/soc/intel/Kconfig
> index 803f95e40679..d854cd66e090 100644
> --- a/sound/soc/intel/Kconfig
> +++ b/sound/soc/intel/Kconfig
> @@ -31,6 +31,8 @@ config SND_SOC_INTEL_SST
>  	tristate
>  	select SND_SOC_INTEL_SST_ACPI if ACPI
>  	depends on (X86 || COMPILE_TEST)
> +	# FIXME: a part of compress API is broken for PPC
> +	depends on !PPC
>
>  config SND_SOC_INTEL_SST_ACPI
>  	tristate

That's fine by me.

Acked-by: Michael Ellerman <[email-masked]>

Though it looks like alpha and mips would also be broken, but perhaps they
can't build that code for some other reason.

  arch/alpha/include/uapi/asm/ioctl.h:#define _IOC_SIZEBITS       13
  arch/mips/include/uapi/asm/ioctl.h:#define _IOC_SIZEBITS        13

cheers