[PATCH 061/156] drm/nouveau/nvkm: remove device list

[Ben Skeggs]

- now unused

Signed-off-by: Ben Skeggs <bske...@nvidia.com>
---
 .../drm/nouveau/include/nvkm/core/device.h    |  3 --
 drivers/gpu/drm/nouveau/nvkm/device/base.c    | 34 -------------------
 2 files changed, 37 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/device.h 
b/drivers/gpu/drm/nouveau/include/nvkm/core/device.h
index 46afb877a296..efe1a0048328 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/core/device.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/core/device.h
@@ -22,7 +22,6 @@ struct nvkm_device {
        const char *cfgopt;
        const char *dbgopt;
 
-       struct list_head head;
        struct mutex mutex;
        int refcount;
 
@@ -108,8 +107,6 @@ struct nvkm_device_chip {
 #undef NVKM_LAYOUT_ONCE
 };
 
-struct nvkm_device *nvkm_device_find(u64 name);
-
 /* privileged register interface accessor macros */
 #define nvkm_rd08(d,a) ioread8((d)->pri + (a))
 #define nvkm_rd16(d,a) ioread16_native((d)->pri + (a))
diff --git a/drivers/gpu/drm/nouveau/nvkm/device/base.c 
b/drivers/gpu/drm/nouveau/nvkm/device/base.c
index 3ce42de55aa9..036106ed09a5 100644
--- a/drivers/gpu/drm/nouveau/nvkm/device/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/device/base.c
@@ -29,30 +29,6 @@
 #include <subdev/bios.h>
 #include <subdev/therm.h>
 
-static DEFINE_MUTEX(nv_devices_mutex);
-static LIST_HEAD(nv_devices);
-
-static struct nvkm_device *
-nvkm_device_find_locked(u64 handle)
-{
-       struct nvkm_device *device;
-       list_for_each_entry(device, &nv_devices, head) {
-               if (device->handle == handle)
-                       return device;
-       }
-       return NULL;
-}
-
-struct nvkm_device *
-nvkm_device_find(u64 handle)
-{
-       struct nvkm_device *device;
-       mutex_lock(&nv_devices_mutex);
-       device = nvkm_device_find_locked(handle);
-       mutex_unlock(&nv_devices_mutex);
-       return device;
-}
-
 static const struct nvkm_device_chip
 nv4_chipset = {
        .name = "NV04",
@@ -2946,8 +2922,6 @@ nvkm_device_del(struct nvkm_device **pdevice)
        struct nvkm_device *device = *pdevice;
        struct nvkm_subdev *subdev, *subtmp;
        if (device) {
-               mutex_lock(&nv_devices_mutex);
-
                nvkm_intr_dtor(device);
 
                list_for_each_entry_safe_reverse(subdev, subtmp, 
&device->subdev, head)
@@ -2955,11 +2929,9 @@ nvkm_device_del(struct nvkm_device **pdevice)
 
                if (device->pri)
                        iounmap(device->pri);
-               list_del(&device->head);
 
                if (device->func->dtor)
                        *pdevice = device->func->dtor(device);
-               mutex_unlock(&nv_devices_mutex);
 
                kfree(*pdevice);
                *pdevice = NULL;
@@ -3010,10 +2982,6 @@ nvkm_device_ctor(const struct nvkm_device_func *func,
        int ret = -EEXIST, j;
        unsigned chipset;
 
-       mutex_lock(&nv_devices_mutex);
-       if (nvkm_device_find_locked(handle))
-               goto done;
-
        device->func = func;
        device->quirk = quirk;
        device->dev = dev;
@@ -3022,7 +2990,6 @@ nvkm_device_ctor(const struct nvkm_device_func *func,
        device->cfgopt = cfg;
        device->dbgopt = dbg;
        device->name = name;
-       list_add_tail(&device->head, &nv_devices);
        device->debug = nvkm_dbgopt(device->dbgopt, "device");
        INIT_LIST_HEAD(&device->subdev);
 
@@ -3305,6 +3272,5 @@ nvkm_device_ctor(const struct nvkm_device_func *func,
                iounmap(device->pri);
                device->pri = NULL;
        }
-       mutex_unlock(&nv_devices_mutex);
        return ret;
 }
-- 
2.41.0