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Subject[2.5.58-bk] link failure in intel.c
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Bad things during the final link process:

arch/i386/kernel/built-in.o(.init.text+0x34e4): In function `P2_enable_L2':
: undefined reference to `read_cr0'
arch/i386/kernel/built-in.o(.init.text+0x34f4): In function `P2_enable_L2':
: undefined reference to `write_cr0'
arch/i386/kernel/built-in.o(.init.text+0x3510): In function `P2_enable_L2':
: undefined reference to `write_cr0'
arch/i386/kernel/built-in.o(.init.text+0x3515): In function `P2_enable_L2':
: undefined reference to `wbinvd'
make[1]: *** [vmlinux] Error 1
make: *** [vmlinux] Error 2

I'm quite sure it is because of this changeset:

davej@codemonkey.org.uk|arch/i386/kernel/cpu/intel.c|20030115022821|46315

======== intel.c 1.1..1.18 ========
D 1.18 03/01/15 01:28:21-01:00 davej@codemonkey.org.uk 38 37 29/0/430
P arch/i386/kernel/cpu/intel.c
C Some 'overdrive' boards, such as those from Powerleap don't have
C the L2 cache enabled, and the BIOS doesn't know about it, so we
C introduce a boot option to 'force' it on.

Dave forgot to include system.h in his revised intel.c, so here is a
quick patch for it.

--- arch/i386/kernel/cpu/intel.c 2003-01-15 00:48:43.000000000 -0800
+++ arch/i386/kernel/cpu/intel.new.c 2003-01-15 00:41:53.000000000 -0800
@@ -8,6 +8,7 @@
#include <asm/processor.h>
#include <asm/msr.h>
#include <asm/uaccess.h>
+#include <asm/system.h>

#include "cpu.h"

With this patch the kernel compiles cleanly.
Regards
Josh
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