Signed-off-by: Michal Simek <monstr@monstr.eu>

The whole point of the __bad_xchg declaration in
system.h is to give a linker error when a variable
of invalid size is passed to __xchg. The out
of line definition in traps.c defeats this purpose
and does not any value, so remove it here.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Michal Simek <monstr@monstr.eu>

CHECK   arch/microblaze/kernel/traps.c
arch/microblaze/kernel/traps.c:37:47: warning: Using plain integer as NULL pointer
CC      arch/microblaze/kernel/traps.o

Signed-off-by: Michal Simek <monstr@monstr.eu>

Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: John Linn <john.linn@xilinx.com>
Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: John Williams <john.williams@petalogix.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>