[PATCH 1/7] kexec: Define some constants and structures conditionally

[Daniel Kiper <daniel.kiper-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>]

Some definitions in include/x86/x86-linux.h conflicts
with definitions placed in Xen headers. Make them
conditional. This patch is required by future
Xen kdump fixes.

Signed-off-by: Daniel Kiper <daniel.kiper-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
---
 include/x86/x86-linux.h |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/include/x86/x86-linux.h b/include/x86/x86-linux.h
index 2ebcc3a..27af02b 100644
--- a/include/x86/x86-linux.h
+++ b/include/x86/x86-linux.h
@@ -4,13 +4,17 @@
 #define TENATIVE 0 /* Code that is tenatively correct but hasn't yet been officially accepted */
 
 #define E820MAP	0x2d0		/* our map */
-#define E820MAX	128		/* number of entries in E820MAP */
 #define E820NR	0x1e8		/* # entries in E820MAP */
 
+#ifndef E820MAX
+#define E820MAX	128		/* number of entries in E820MAP */
+#endif
+
 #ifndef ASSEMBLY
 
 #define PACKED __attribute__((packed))
 
+#ifndef E820_RAM
 struct e820entry {
 	uint64_t addr;	/* start of memory segment */
 	uint64_t size;	/* size of memory segment */
@@ -20,6 +24,7 @@ struct e820entry {
 #define E820_ACPI	3 /* usable as RAM once ACPI tables have been read */
 #define E820_NVS	4
 } PACKED;
+#endif
 
 /* FIXME expand on drive_info_)struct... */
 struct drive_info_struct {
-- 
1.5.6.5