There is no need to dump the whole EDID block in case it contains no
information. Just print a single line stating the block is empty instead
of 8 lines containing only zeroes.
Signed-off-by: Stefan Brüns <stefan.bruens@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/drm_edid.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 3bf9991..ec4f91f 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -1080,9 +1080,13 @@ bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid)
bad:
if (print_bad_edid) {
- printk(KERN_ERR "Raw EDID:\n");
- print_hex_dump(KERN_ERR, " \t", DUMP_PREFIX_NONE, 16, 1,
+ if (drm_edid_is_zero(raw_edid, EDID_LENGTH)) {
+ printk(KERN_ERR "EDID block is all zeroes\n");
+ } else {
+ printk(KERN_ERR "Raw EDID:\n");
+ print_hex_dump(KERN_ERR, " \t", DUMP_PREFIX_NONE, 16, 1,
raw_edid, EDID_LENGTH, false);
+ }
}
return false;
}
--
2.1.2
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