diff options
| -rw-r--r-- | drivers/gpu/drm/drm_edid.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 1ebf434b2f0b..d842d5fc0b81 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -2408,15 +2408,19 @@ drm_for_each_detailed_block(u8 *raw_edid, detailed_cb *cb, void *closure) } static void -is_rb(struct detailed_timing *t, void *data) +is_rb(struct detailed_timing *descriptor, void *data) { - u8 *r = (u8 *)t; + bool *res = data; - if (!is_display_descriptor(t, EDID_DETAIL_MONITOR_RANGE)) + if (!is_display_descriptor(descriptor, EDID_DETAIL_MONITOR_RANGE)) return; - if (r[10] == DRM_EDID_CVT_SUPPORT_FLAG && r[15] & 0x10) - *(bool *)data = true; + BUILD_BUG_ON(offsetof(typeof(*descriptor), data.other_data.data.range.flags) != 10); + BUILD_BUG_ON(offsetof(typeof(*descriptor), data.other_data.data.range.formula.cvt.flags) != 15); + + if (descriptor->data.other_data.data.range.flags == DRM_EDID_CVT_SUPPORT_FLAG && + descriptor->data.other_data.data.range.formula.cvt.flags & 0x10) + *res = true; } /* EDID 1.4 defines this explicitly. For EDID 1.3, we guess, badly. */ |