[PATCH] x86: Adds mtrr_save_fixed_ranges() for use in two later patches.
In this current implementation which is used in other patches,
mtrr_save_fixed_ranges() accepts a dummy void pointer because
in the current implementation of one of these patches, this
function may be called from smp_call_function_single() which
requires that this function takes a void pointer argument.
This function calls get_fixed_ranges(), passing mtrr_state.fixed_ranges
which is the element of the static struct which stores our current
backup of the fixed-range MTRR values which all CPUs shall be
using.
Because mtrr_save_fixed_ranges calls get_fixed_ranges after
kernel initialisation time, __init needs to be removed from
the declaration of get_fixed_ranges().
If CONFIG_MTRR is not set, we define mtrr_save_fixed_ranges
as an empty statement because there is nothing to do.
AK: Moved prototypes for x86-64 around to fix warnings
Signed-off-by: Bernhard Kaindl <bk@suse.de>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andi Kleen <ak@suse.de>
Cc: Dave Jones <davej@codemonkey.org.uk>
diff --git a/include/asm-i386/mtrr.h b/include/asm-i386/mtrr.h
index 07f063a..02a41b9 100644
--- a/include/asm-i386/mtrr.h
+++ b/include/asm-i386/mtrr.h
@@ -69,6 +69,7 @@
/* The following functions are for use by other drivers */
# ifdef CONFIG_MTRR
+extern void mtrr_save_fixed_ranges(void *);
extern int mtrr_add (unsigned long base, unsigned long size,
unsigned int type, char increment);
extern int mtrr_add_page (unsigned long base, unsigned long size,
@@ -79,6 +80,7 @@
extern void mtrr_ap_init(void);
extern void mtrr_bp_init(void);
# else
+#define mtrr_save_fixed_ranges(arg) do {} while (0)
static __inline__ int mtrr_add (unsigned long base, unsigned long size,
unsigned int type, char increment)
{