linux-kernel - drivers/gpu/drm/nouveau/nvkm/engine/fifo/gf100.c:178:1: sparse: sparse: symbol 'gf100_fifo_nonstall_block' was not declared. Should it be static?

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Date:   Fri, 16 Dec 2022 07:01:46 +0800
From:   kernel test robot <lkp@...el.com>
To:     Ben Skeggs <bskeggs@...hat.com>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Lyude Paul <lyude@...hat.com>
Subject: drivers/gpu/drm/nouveau/nvkm/engine/fifo/gf100.c:178:1: sparse:
 sparse: symbol 'gf100_fifo_nonstall_block' was not declared. Should it be
 static?

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   785d21ba2f447fb26df4b22f45653763beb767ea
commit: d67f3b96462922713e77cddb9d6f4965606918fc drm/nouveau/fifo: tidy up non-stall intr handling
date:   5 weeks ago
config: s390-randconfig-s052-20221214
compiler: s390-linux-gcc (GCC) 12.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-39-gce1a6720-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d67f3b96462922713e77cddb9d6f4965606918fc
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout d67f3b96462922713e77cddb9d6f4965606918fc
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=s390 SHELL=/bin/bash drivers/gpu/drm/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>

sparse warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/nouveau/nvkm/engine/fifo/gf100.c:178:1: sparse: sparse: symbol 'gf100_fifo_nonstall_block' was not declared. Should it be static?

vim +/gf100_fifo_nonstall_block +178 drivers/gpu/drm/nouveau/nvkm/engine/fifo/gf100.c

   159	
   160	static void
   161	gf100_ectx_bind(struct nvkm_engn *engn, struct nvkm_cctx *cctx, struct nvkm_chan *chan)
   162	{
   163		u64 addr = 0ULL;
   164		u32 ptr0;
   165	
   166		switch (engn->engine->subdev.type) {
   167		case NVKM_ENGINE_SW    : return;
   168		case NVKM_ENGINE_GR    : ptr0 = 0x0210; break;
   169		case NVKM_ENGINE_CE    : ptr0 = 0x0230 + (engn->engine->subdev.inst * 0x10); break;
   170		case NVKM_ENGINE_MSPDEC: ptr0 = 0x0250; break;
   171		case NVKM_ENGINE_MSPPP : ptr0 = 0x0260; break;
   172		case NVKM_ENGINE_MSVLD : ptr0 = 0x0270; break;
   173		default:
   174			WARN_ON(1);
   175			return;
   176		}
   177	
 > 178		if (cctx) {
   179			addr  = cctx->vctx->vma->addr;
   180			addr |= 4ULL;
   181		}
   182	
   183		nvkm_kmap(chan->inst);
   184		nvkm_wo32(chan->inst, ptr0 + 0, lower_32_bits(addr));
   185		nvkm_wo32(chan->inst, ptr0 + 4, upper_32_bits(addr));
   186		nvkm_done(chan->inst);
   187	}
   188	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

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