linux-kernel - drivers/gpu/drm/nouveau/nvkm/engine/gr/gk20a.c:87:1: warning: no previous prototype for 'gk20a_gr_aiv_to

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Date:   Thu, 28 May 2020 18:35:23 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Ben Skeggs <bskeggs@...hat.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: drivers/gpu/drm/nouveau/nvkm/engine/gr/gk20a.c:87:1: warning: no
 previous prototype for 'gk20a_gr_aiv_to_init'

Hi Ben,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   b0c3ba31be3e45a130e13b278cf3b90f69bda6f6
commit: a2bfb50e72aeb139801109e3b4eb73ac53bde314 drm/nouveau/gr/gk20a,gm200-: use nvkm_firmware_load_blob for sw init
date:   4 months ago
config: arm64-sof-customedconfig-xrun-debug-defconfig (attached as .config)
compiler: aarch64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout a2bfb50e72aeb139801109e3b4eb73ac53bde314
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp@...el.com>

All warnings (new ones prefixed by >>, old ones prefixed by <<):

drivers/gpu/drm/nouveau/nvkm/engine/gr/gk20a.c:37:1: warning: no previous prototype for 'gk20a_gr_av_to_init' [-Wmissing-prototypes]
37 | gk20a_gr_av_to_init(struct gf100_gr *gr, const char *path, const char *name,
| ^~~~~~~~~~~~~~~~~~~
>> drivers/gpu/drm/nouveau/nvkm/engine/gr/gk20a.c:87:1: warning: no previous prototype for 'gk20a_gr_aiv_to_init' [-Wmissing-prototypes]
87 | gk20a_gr_aiv_to_init(struct gf100_gr *gr, const char *path, const char *name,
| ^~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/nouveau/nvkm/engine/gr/gk20a.c:130:1: warning: no previous prototype for 'gk20a_gr_av_to_method' [-Wmissing-prototypes]
130 | gk20a_gr_av_to_method(struct gf100_gr *gr, const char *path, const char *name,
| ^~~~~~~~~~~~~~~~~~~~~

vim +/gk20a_gr_aiv_to_init +87 drivers/gpu/drm/nouveau/nvkm/engine/gr/gk20a.c

    85	
    86	int
  > 87	gk20a_gr_aiv_to_init(struct gf100_gr *gr, const char *path, const char *name,
    88			     int ver, struct gf100_gr_pack **ppack)
    89	{
    90		struct nvkm_subdev *subdev = &gr->base.engine.subdev;
    91		struct nvkm_blob blob;
    92		struct gf100_gr_init *init;
    93		struct gf100_gr_pack *pack;
    94		int nent;
    95		int ret;
    96		int i;
    97	
    98		ret = nvkm_firmware_load_blob(subdev, path, name, ver, &blob);
    99		if (ret)
   100			return ret;
   101	
   102		nent = (blob.size / sizeof(struct gk20a_fw_aiv));
   103		pack = vzalloc((sizeof(*pack) * 2) + (sizeof(*init) * (nent + 1)));
   104		if (!pack) {
   105			ret = -ENOMEM;
   106			goto end;
   107		}
   108	
   109		init = (void *)(pack + 2);
   110		pack[0].init = init;
   111	
   112		for (i = 0; i < nent; i++) {
   113			struct gf100_gr_init *ent = &init[i];
   114			struct gk20a_fw_aiv *av = &((struct gk20a_fw_aiv *)blob.data)[i];
   115	
   116			ent->addr = av->addr;
   117			ent->data = av->data;
   118			ent->count = 1;
   119			ent->pitch = 1;
   120		}
   121	
   122		*ppack = pack;
   123	
   124	end:
   125		nvkm_blob_dtor(&blob);
   126		return ret;
   127	}
   128	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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