[PATCH i-g-t v1 2/2] tests/kms_frontbuffer_tracking: iterate over suspend with `for`

["Michał Grzelak" <michal.grzelak@intel.com>]

igt@kms_frontbuffer_tracking introduces TEST_MODE_ITER_BEGIN(t) which
consists of nested for loops. However, most of loops is skipped during
continue statement, thus can be omitted. Thus obfuscates following the
execution of any given codepath. Replace TEST_MODE_ITER_BEGIN(t) for
suspend tests with macro definition and remove skipped for loops.

Cc: Juha-Pekka Heikkilä <juhapekka.heikkila@gmail.com>
Signed-off-by: Michał Grzelak <michal.grzelak@intel.com>
---
 tests/intel/kms_frontbuffer_tracking.c | 22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

diff --git a/tests/intel/kms_frontbuffer_tracking.c b/tests/intel/kms_frontbuffer_tracking.c
index d38c3969d0..e1f0412ecb 100644
--- a/tests/intel/kms_frontbuffer_tracking.c
+++ b/tests/intel/kms_frontbuffer_tracking.c
@@ -4647,12 +4647,20 @@ int igt_main_args("", long_options, help_str, opt_handler, NULL)
 		}
 	TEST_MODE_ITER_END
 
-	TEST_MODE_ITER_BEGIN(t)
-		if (t.pipes != PIPE_SINGLE ||
-		    t.screen != SCREEN_PRIM ||
-		    t.plane != PLANE_PRI ||
-		    t.fbs != FBS_INDIVIDUAL ||
-		    t.method != IGT_DRAW_BLT)
+	t.format = FORMAT_DEFAULT;
+	t.flip = FLIP_PAGEFLIP;
+	t.tiling = opt.tiling;
+	t.pipes = PIPE_SINGLE;
+	t.screen = SCREEN_PRIM;
+	t.plane = PLANE_PRI;
+	t.fbs = FBS_INDIVIDUAL;
+	t.method = IGT_DRAW_BLT;
+
+	for (t.feature = 0; t.feature < FEATURE_COUNT; t.feature++) {
+
+		if (!opt.show_hidden && t.feature == FEATURE_NONE)
+			continue;
+		if ((t.feature & FEATURE_PSR) && (t.feature & FEATURE_DRRS))
 			continue;
 
 		igt_subtest_f("%s-modesetfrombusy", feature_str(t.feature))
@@ -4713,7 +4721,7 @@ int igt_main_args("", long_options, help_str, opt_handler, NULL)
 			igt_require(igt_draw_supports_method(drm.fd, t.method));
 			suspend_subtest(&t);
 		}
-	TEST_MODE_ITER_END
+	}
 
 	t.pipes = PIPE_SINGLE;
 	t.screen = SCREEN_PRIM;
-- 
2.45.2