[linux-next:master 1060/2655] drivers/gpu/drm/nouveau/nv10_fence.c:35:40: sparse: sparse: incorrect type in initializer (different address spaces)

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   048d8cb65cde9fe7534eb4440bcfddcf406bb49c
commit: 0df26c0d69dce1141218e0e5ed0ad378a0c6c058 [1060/2655] drm/nouveau: remove push pointer from nouveau_channel
config: x86_64-randconfig-122-20240801 (https://download.01.org/0day-ci/archive/20240801/202408011836.hAzQyIkl-lkp@xxxxxxxxx/config)
compiler: gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240801/202408011836.hAzQyIkl-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202408011836.hAzQyIkl-lkp@xxxxxxxxx/

sparse warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/nouveau/nv10_fence.c:35:40: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected struct nvif_push *push @@     got struct nvif_push [noderef] __rcu * @@
   drivers/gpu/drm/nouveau/nv10_fence.c:35:40: sparse:     expected struct nvif_push *push
   drivers/gpu/drm/nouveau/nv10_fence.c:35:40: sparse:     got struct nvif_push [noderef] __rcu *
   drivers/gpu/drm/nouveau/nv10_fence.c:38:17: sparse: sparse: cast removes address space '__iomem' of expression
   drivers/gpu/drm/nouveau/nv10_fence.c:38:17: sparse: sparse: cast removes address space '__iomem' of expression

vim +35 drivers/gpu/drm/nouveau/nv10_fence.c

    31	
    32	int
    33	nv10_fence_emit(struct nouveau_fence *fence)
    34	{
  > 35		struct nvif_push *push = &fence->channel->chan.push;
    36		int ret = PUSH_WAIT(push, 2);
    37		if (ret == 0) {
    38			PUSH_MTHD(push, NV06E, SET_REFERENCE, fence->base.seqno);
    39			PUSH_KICK(push);
    40		}
    41		return ret;
    42	}
    43	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki




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