[04/12] drm/edid: make drm_edid_header_is_valid() accept void pointer

Commit Message

Jani Nikula March 29, 2022, 6:42 p.m. UTC

It will be useful to accept a struct edid *, but for compatibility with
existing usage accept void *.

Cc: Ville Syrjälä <[e-mail]>
Signed-off-by: Jani Nikula <[e-mail]>
---
 drivers/gpu/drm/drm_edid.c | 8 +++++---
 include/drm/drm_edid.h     | 2 +-
 2 files changed, 6 insertions(+), 4 deletions(-)

Patch

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 95f0303bc63e..b5b21b50e476 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -1580,13 +1580,15 @@  static const u8 edid_header[] = {
  *
  * Return: 8 if the header is perfect, down to 0 if it's totally wrong.
  */
-int drm_edid_header_is_valid(const u8 *raw_edid)
+int drm_edid_header_is_valid(const void *_edid)
 {
+	const struct edid *edid = _edid;
 	int i, score = 0;
 
-	for (i = 0; i < sizeof(edid_header); i++)
-		if (raw_edid[i] == edid_header[i])
+	for (i = 0; i < sizeof(edid_header); i++) {
+		if (edid->header[i] == edid_header[i])
 			score++;
+	}
 
 	return score;
 }
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index 48b1bf9c315a..b7e170584000 100644
--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -578,7 +578,7 @@  int drm_add_modes_noedid(struct drm_connector *connector,
 void drm_set_preferred_mode(struct drm_connector *connector,
 			    int hpref, int vpref);
 
-int drm_edid_header_is_valid(const u8 *raw_edid);
+int drm_edid_header_is_valid(const void *edid);
 bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid,
 			  bool *edid_corrupt);
 bool drm_edid_is_valid(struct edid *edid);