Rodrigo Vivi authored Nov 29, 2016 and Chris Wilson committed Dec 01, 2016

I noticed in some machines igt compilation was breaking
after igt_dummyload was introduced.

I don't know exactly why, but it seems this cast seems to let
old gcc a bit confused. Without the cast everything works
properly.

Compilation Error log:
  CC       igt_dummyload.lo
In file included from igt.h:30:0,
                 from igt_dummyload.c:25:
igt_aux.h:288:39: error: initializer element is not constant
 #define __IGT_INIT_LIST(name) (struct igt_list){ &(name), &(name) }
                                       ^
igt_aux.h:289:47: note: in expansion of macro ‘__IGT_INIT_LIST’
 #define IGT_LIST(name) struct igt_list name = __IGT_INIT_LIST(name);
                                               ^
igt_dummyload.c:50:8: note: in expansion of macro ‘IGT_LIST’
 static IGT_LIST(spin_list);
        ^
make[4]: *** [igt_dummyload.lo] Error 1

Cc: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>