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@rwth-aachen.de --- 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; }