[Intel-gfx] [PATCH v2 09/12] drm/edid: simplify block check when filtering invalid blocks

[Jani Nikula]

There's no need to handle complicated scenarios or debug log when
filtering blocks that have already been identified as invalid. Simplify
by adding an edid_block_valid() helper that operates on const data and
prints nothing.

(Finally, here's the justification for the previously added separate
edid_block_status_valid() function!)

Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula at intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/drm_edid.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index a967e6e65ab5..4803033d44fd 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -1714,6 +1714,12 @@ static bool edid_block_status_valid(enum edid_block_status status, int tag)
 		(status == EDID_BLOCK_CHECKSUM && tag == CEA_EXT);
 }
 
+static bool edid_block_valid(const void *block, bool base)
+{
+	return edid_block_status_valid(edid_block_check(block, base),
+				       edid_block_tag(block));
+}
+
 /**
  * drm_edid_block_valid - Sanity check the EDID block (base or extension)
  * @raw_edid: pointer to raw EDID block
@@ -2080,7 +2086,7 @@ struct edid *drm_do_get_edid(struct drm_connector *connector,
 		for (i = 0; i <= edid->extensions; i++) {
 			void *block = edid + i;
 
-			if (!drm_edid_block_valid(block, i, false, NULL))
+			if (!edid_block_valid(block, i == 0))
 				continue;
 
 			memcpy(dest_block, block, EDID_LENGTH);
-- 
2.30.2