[PATCH] kexec: provide crashinfo_maxaddr_bits if !CONFIG_KEXEC

[David Vrabel <david.vrabel@citrix.com>]

From: David Vrabel <david.vrabel@citrix.com>

Fix the build where !CONFIG_KEXEC (e.g., arm) by providing a default
crashinfo_maxaddr_bits.

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
---
Andy,

A cleaner fix might be to replace MEMF_bits(crashinfo_max_addr_bits)
with a function (e.g., crashinfo_mem_flags()), and provide an inline
stub when !CONFIG_KEXEC.

David
---
 xen/drivers/char/console.c |    2 --
 xen/include/xen/kexec.h    |    8 ++++++++
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/xen/drivers/char/console.c b/xen/drivers/char/console.c
index 5cbbf81..e10bed5 100644
--- a/xen/drivers/char/console.c
+++ b/xen/drivers/char/console.c
@@ -22,9 +22,7 @@
 #include <xen/guest_access.h>
 #include <xen/shutdown.h>
 #include <xen/vga.h>
-#ifdef CONFIG_KEXEC
 #include <xen/kexec.h>
-#endif
 #include <asm/debugger.h>
 #include <asm/div64.h>
 #include <xen/hypercall.h> /* for do_console_io */
diff --git a/xen/include/xen/kexec.h b/xen/include/xen/kexec.h
index 8e9c1d3..b3ca8b0 100644
--- a/xen/include/xen/kexec.h
+++ b/xen/include/xen/kexec.h
@@ -1,6 +1,8 @@
 #ifndef __XEN_KEXEC_H__
 #define __XEN_KEXEC_H__
 
+#ifdef CONFIG_KEXEC
+
 #include <public/kexec.h>
 #include <asm/percpu.h>
 #include <xen/elfcore.h>
@@ -76,6 +78,12 @@ void vmcoreinfo_append_str(const char *fmt, ...)
        vmcoreinfo_append_str("OFFSET(%s.%s)=%lu\n", #name, #field, \
                              (unsigned long)offsetof(struct name, sub.field))
 
+#else /* !CONFIG_KEXEC */
+
+#define crashinfo_maxaddr_bits 0
+
+#endif
+
 #endif /* __XEN_KEXEC_H__ */
 
 /*
-- 
1.7.2.5