[PATCH] x86_64: CONFIG_BUG=n fixes

Fixes some !CONFIG_BUG warnings:
include/asm/mmu_context.h: I funktion `switch_mm':
include/asm/mmu_context.h:57: varning: implicit declaration of function `out_of_line_bug'

Signed-off-by: Alexander Nyberg <alexn@telia.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

3 files changed, 6 insertions, 1 deletions

diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c
index 65a37f52c56e..3dfec8fdabcd 100644
--- a/arch/x86_64/kernel/traps.c
+++ b/arch/x86_64/kernel/traps.c
@@ -332,10 +332,12 @@ void handle_BUG(struct pt_regs *regs)
         printk(KERN_ALERT "Kernel BUG at %.50s:%d\n", f.filename, f.line);
 } 
 
+#ifdef CONFIG_BUG
 void out_of_line_bug(void)
 { 
         BUG(); 
 } 
+#endif
 
 static DEFINE_SPINLOCK(die_lock);
 static int die_owner = -1;
diff --git a/arch/x86_64/kernel/x8664_ksyms.c b/arch/x86_64/kernel/x8664_ksyms.c
index a43dedb58fa2..68ec03070e5a 100644
--- a/arch/x86_64/kernel/x8664_ksyms.c
+++ b/arch/x86_64/kernel/x8664_ksyms.c
@@ -193,8 +193,9 @@ EXPORT_SYMBOL(smp_num_siblings);
 extern void do_softirq_thunk(void);
 EXPORT_SYMBOL(do_softirq_thunk);
 
-void out_of_line_bug(void);
+#ifdef CONFIG_BUG
 EXPORT_SYMBOL(out_of_line_bug);
+#endif
 
 EXPORT_SYMBOL(init_level4_pgt);
 
diff --git a/include/asm-x86_64/bug.h b/include/asm-x86_64/bug.h
index bdbf66eab6ee..3d2a666a5dd5 100644
--- a/include/asm-x86_64/bug.h
+++ b/include/asm-x86_64/bug.h
@@ -21,6 +21,8 @@ struct bug_frame {
         asm volatile("ud2 ; .quad %c1 ; .short %c0" :: \
                      "i"(__LINE__), "i" (__stringify(__FILE__)))
 void out_of_line_bug(void);
+#else
+static inline void out_of_line_bug(void) { }
 #endif
 
 #include <asm-generic/bug.h>