Re: Linux 3.0-rc4 - fail to compile...

["Paul Rolland" <rol@witbe.net>]

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Hello,

On Mon, 20 Jun 2011 21:02:56 -0700
Linus Torvalds <torvalds@linux-foundation.org> wrote:

> Mostly the usual small driver one- (or few-) liners, and some bigger
> changes to drm (and md). But also two new smallish drivers
> (net/usb/kalmia.c, and the ADP8870 backlight driver). Some filesystem
> fixes (btrfs, cifs, afs, xfs, nfsd).

This is failing to compile on my machine :
...
  CC      mm/page_cgroup.o
  CC      fs/direct-io.o
mm/page_cgroup.c: In function ‘page_cgroup_init’:
mm/page_cgroup.c:308: error: implicit declaration of function ‘node_start_pfn’
mm/page_cgroup.c:309: error: implicit declaration of function ‘node_end_pfn’
make[1]: *** [mm/page_cgroup.o] Error 1
make: *** [mm] Error 2
make: *** Waiting for unfinished jobs....
  CC      fs/mpage.o
  CC      fs/ioprio.o

This seems to be caused by arch/x86/include/asm/mmzone_64.h which only defines
node_start_pfn and node_end_pfn if CONFIG_NUMA is set.

Adding CONFIG_NUMA to my .config fixes the issue.

Paul



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