Re: linux-next: build failure after merge of the driver-core tree

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From	Greg KH <greg@kroah.com>
Newsgroups	linux.kernel
Subject	Re: linux-next: build failure after merge of the driver-core tree
Date	Mon, 02 May 2016 16:50:03 +0200
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On Mon, May 02, 2016 at 07:40:47AM -0400, William Breathitt Gray wrote:
> On Mon, May 02, 2016 at 03:42:58PM +1000, Stephen Rothwell wrote:
> >Hi Greg,
> >
> >After merging the driver-core tree, today's linux-next build (x86_64
> >allmodconfig) failed like this:
> >
> >In file included from include/uapi/linux/stddef.h:1:0,
> >                 from include/linux/stddef.h:4,
> >                 from include/uapi/linux/posix_types.h:4,
> >                 from include/uapi/linux/types.h:13,
> >                 from include/linux/types.h:5,
> >                 from include/linux/list.h:4,
> >                 from include/linux/module.h:9,
> >                 from arch/x86/mm/extable.c:1:
> >arch/x86/mm/extable.c: In function 'fixup_exception':
> >arch/x86/mm/extable.c:102:15: error: implicit declaration of function 'SEGMENT_IS_PNP_CODE' [-Werror=implicit-function-declaration]
> >  if (unlikely(SEGMENT_IS_PNP_CODE(regs->cs))) {
> >               ^
> >drivers/pnp/pnpbios/bioscalls.c:106:34: error: 'PNP_TS1' und
> >eclared (first use in this function)
> >   Q2_SET_SEL(smp_processor_id(), PNP_TS1, ts1_base, ts1_size);
> >                                  ^
> >drivers/pnp/pnpbios/bioscalls.c:108:34: error: 'PNP_TS2' undeclared (first use in this function)
> >   Q2_SET_SEL(smp_processor_id(), PNP_TS2, ts2_base, ts2_size);
> >                                  ^
> >drivers/pnp/pnpbios/bioscalls.c:133:13: error: 'PNP_CS32' undeclared (first use in this function)
> >         "i"(PNP_CS32), "i"(0)
> >             ^
> >
> >and on ...
> >
> >Somehow caused by commit
> >
> >  8ac0fba2da41 ("isa: Decouple X86_32 dependency from the ISA Kconfig option")
> >
> >I don't easily see why it causes the problem, but reverting it makes the
> >build work.  I also cannot rule out interaction with some other tree.
> >
> >I have reverted that commit for today.
> >
> >-- 
> >Cheers,
> >Stephen Rothwell
> 
> The PnP errors are due to an overly broad Kconfig dependency list, and
> are resolved with the following patch:
> <https://lkml.org/lkml/2016/5/1/100>. This patch should be applied first
> to prevent the PnP build for X86_64, when the X86_32 dependency is
> decoupled from the ISA Kconfig option in this current patch.

You didn't tell me that when I applied the above patch :(

I'll go apply the pnp patch now, but really, please be more careful with
dependancies next time.

greg k-h

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linux-next: build failure after merge of the driver-core tree Stephen Rothwell <sfr@canb.auug.org.au> - 2016-05-02 07:50 +0200
  Re: linux-next: build failure after merge of the driver-core tree William Breathitt Gray <vilhelm.gray@gmail.com> - 2016-05-02 13:50 +0200
    Re: linux-next: build failure after merge of the driver-core tree Greg KH <greg@kroah.com> - 2016-05-02 16:50 +0200

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