In the macro for_each_oldnew_crtc_in_state() 'crtc_state' is provided as a container for state->crtcs[i].new_state, but is not utilised in this use-case. We cannot simply delete the variable, so here we tell the compiler that we're intentionally discarding the read value.
Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/imx/ipuv3-plane.c: In function ‘ipu_planes_assign_pre’: drivers/gpu/drm/imx/ipuv3-plane.c:746:42: warning: variable ‘crtc_state’ set but not used [-Wunused-but-set-variable] Cc: Philipp Zabel <[email protected]> Cc: David Airlie <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: Shawn Guo <[email protected]> Cc: Sascha Hauer <[email protected]> Cc: Pengutronix Kernel Team <[email protected]> Cc: Fabio Estevam <[email protected]> Cc: NXP Linux Team <[email protected]> Cc: [email protected] Signed-off-by: Lee Jones <[email protected]> --- drivers/gpu/drm/imx/ipuv3-plane.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c index 8a4235d9d9f1e..acc0a3ce4992f 100644 --- a/drivers/gpu/drm/imx/ipuv3-plane.c +++ b/drivers/gpu/drm/imx/ipuv3-plane.c @@ -743,7 +743,7 @@ bool ipu_plane_atomic_update_pending(struct drm_plane *plane) int ipu_planes_assign_pre(struct drm_device *dev, struct drm_atomic_state *state) { - struct drm_crtc_state *old_crtc_state, *crtc_state; + struct drm_crtc_state *old_crtc_state, __always_unused *crtc_state; struct drm_plane_state *plane_state; struct ipu_plane_state *ipu_state; struct ipu_plane *ipu_plane; -- 2.25.1 _______________________________________________ dri-devel mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/dri-devel
