drm/nouveau/mc: allow construction of subclassed device

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mc/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mc/base.c
index 60d5c95..fa6b993 100644 (file)
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mc/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mc/base.c
@@ -148,16 +148,21 @@ nvkm_mc = {
        .fini = nvkm_mc_fini,
 };
 
+void
+nvkm_mc_ctor(const struct nvkm_mc_func *func, struct nvkm_device *device,
+            int index, struct nvkm_mc *mc)
+{
+       nvkm_subdev_ctor(&nvkm_mc, device, index, &mc->subdev);
+       mc->func = func;
+}
+
 int
 nvkm_mc_new_(const struct nvkm_mc_func *func, struct nvkm_device *device,
             int index, struct nvkm_mc **pmc)
 {
        struct nvkm_mc *mc;
-
        if (!(mc = *pmc = kzalloc(sizeof(*mc), GFP_KERNEL)))
                return -ENOMEM;
-
-       nvkm_subdev_ctor(&nvkm_mc, device, index, &mc->subdev);
-       mc->func = func;
+       nvkm_mc_ctor(func, device, index, *pmc);
        return 0;
 }

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mc/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/mc/priv.h
index a120381..536b8bd 100644 (file)
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mc/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mc/priv.h
@@ -3,6 +3,8 @@
 #define nvkm_mc(p) container_of((p), struct nvkm_mc, subdev)
 #include <subdev/mc.h>
 
+void nvkm_mc_ctor(const struct nvkm_mc_func *, struct nvkm_device *,
+                 int index, struct nvkm_mc *);
 int nvkm_mc_new_(const struct nvkm_mc_func *, struct nvkm_device *,
                 int index, struct nvkm_mc **);