linux-kernel - Re: [PATCH V6 00/18] x86: Full support of PAT

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Date:	Sun, 16 Nov 2014 14:08:47 +0100
From:	Ingo Molnar <mingo@...nel.org>
To:	Juergen Gross <jgross@...e.com>
Cc:	hpa@...or.com, x86@...nel.org, tglx@...utronix.de,
	mingo@...hat.com, stefan.bader@...onical.com,
	linux-kernel@...r.kernel.org, xen-devel@...ts.xensource.com,
	konrad.wilk@...cle.com, ville.syrjala@...ux.intel.com,
	david.vrabel@...rix.com, jbeulich@...e.com, toshi.kani@...com,
	plagnioj@...osoft.com, tomi.valkeinen@...com, bhelgaas@...gle.com
Subject: Re: [PATCH V6 00/18] x86: Full support of PAT


* Juergen Gross <jgross@...e.com> wrote:

>  arch/x86/include/asm/cacheflush.h         |  38 ++++---

FYI, this series breaks the UML build:

In file included from /home/mingo/tip/include/linux/highmem.h:11:0,
                 from /home/mingo/tip/include/linux/pagemap.h:10,
                 from /home/mingo/tip/include/linux/mempolicy.h:14,
                 from /home/mingo/tip/include/linux/shmem_fs.h:6,
                 from /home/mingo/tip/init/do_mounts.c:30:
/home/mingo/tip/arch/x86/include/asm/cacheflush.h:67:36: error: return type is an incomplete type
 static inline enum page_cache_mode get_page_memtype(struct page *pg)
                                    ^
/home/mingo/tip/arch/x86/include/asm/cacheflush.h: In function ‘get_page_memtype’:
/home/mingo/tip/arch/x86/include/asm/cacheflush.h:69:2: warning: ‘return’ with a value, in function returning void [enabled by default]
  return -1;
  ^
/home/mingo/tip/arch/x86/include/asm/cacheflush.h: At top level:
/home/mingo/tip/arch/x86/include/asm/cacheflush.h:72:30: error: parameter 2 (‘memtype’) has incomplete type
         enum page_cache_mode memtype)
                              ^
/home/mingo/tip/arch/x86/include/asm/cacheflush.h:71:20: error: function declaration isn’t a prototype [-Werror=strict-prototypes]

Thanks,

	Ingo
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