drm/msm: drop unused ring variable in msm_ioctl_gem_submit()

The variable ring is not used by msm_parse_deps() and
msm_ioctl_gem_submit() and thus can be dropped.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/529340/Signed-off-by: Rob Clark <robdclark@chromium.org>

drivers/gpu/drm/msm/msm_gem_submit.c

@@ -558,8 +558,7 @@ static struct drm_syncobj **msm_parse_deps(struct msm_gem_submit *submit,
                                            struct drm_file *file,
                                            uint64_t in_syncobjs_addr,
                                            uint32_t nr_in_syncobjs,
-                                           size_t syncobj_stride,
-                                           struct msm_ringbuffer *ring)
+                                           size_t syncobj_stride)
 {
 	struct drm_syncobj **syncobjs = NULL;
 	struct drm_msm_gem_submit_syncobj syncobj_desc = {0};
@@ -808,7 +807,7 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
 		syncobjs_to_reset = msm_parse_deps(submit, file,
 		                                   args->in_syncobjs,
 		                                   args->nr_in_syncobjs,
-		                                   args->syncobj_stride, ring);
+		                                   args->syncobj_stride);
 		if (IS_ERR(syncobjs_to_reset)) {
 			ret = PTR_ERR(syncobjs_to_reset);
 			goto out_unlock;