backend/drm: remove wlr_drm_crtc.legacy_crtc

We only need it for one thing: gamma size. Moreover, some bits in
the drmModeCrtc will become out-of-date, for instance the current
mode, so let's avoid caching the whole struct and only keep what
we know won't change.

1 files changed, 1 insertions, 1 deletions

diff --git a/include/backend/drm/drm.h b/include/backend/drm/drm.h
index 16126ec2..e93b5eaf 100644
--- a/include/backend/drm/drm.h
+++ b/include/backend/drm/drm.h
@@ -41,7 +41,7 @@ struct wlr_drm_crtc {
 	uint32_t gamma_lut;
 
 	// Legacy only
-	drmModeCrtc *legacy_crtc;
+	int legacy_gamma_size;
 
 	struct wlr_drm_plane *primary;
 	struct wlr_drm_plane *cursor;