[PATCH 08/11] ARM: BUG: Move BUG() into the do-while loop

[Sebastian Andrzej Siewior <sebastian@breakpoint.cc>]

Make the BUG() macro use the do-while loop and make the __BUG_FLAGS()
use the extra indirection. This shift makes it possible to use
__BUG_FLAGS() macro without having the unreachable() macro.

Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
---
 arch/arm/include/asm/bug.h | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/arch/arm/include/asm/bug.h b/arch/arm/include/asm/bug.h
index b9e58be656360..963365b3158b9 100644
--- a/arch/arm/include/asm/bug.h
+++ b/arch/arm/include/asm/bug.h
@@ -19,9 +19,8 @@
 #define BUG_ENCODING() .long ___asm_opcode_to_mem_arm(BUG_INSTR_VALUE)
 #endif
 
-
-#define BUG() _BUG(__FILE__, __LINE__)
-#define _BUG(file, line) __BUG(file, line)
+#define __BUG_FLAGS(__file, __line, __flags)	__BUG_FLAGS_(__file, __line, __flags)
+#define __BUG_FLAGS_(__file, __line, __flags)	__BUG__LINE(__file, __line, __flags)
 
 #ifdef CONFIG_DEBUG_BUGVERBOSE
 #define _BUG_VERBOSE_LINE(__file, __line)			\
@@ -60,9 +59,9 @@
  * preferable to this unpleasantness. We use mergeable string sections to
  * avoid multiple copies of the string appearing in the kernel image.
  */
-#define __BUG(__file, __line)					\
+#define BUG()							\
 do {								\
-	asm volatile(__stringify(__BUG__LINE(__file, __line, 0))); \
+	asm volatile(__stringify(__BUG_FLAGS(__FILE__, __LINE__, 0))); \
 	unreachable();						\
 } while (0)
 

-- 
2.55.0