linux-kernel - drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:338:6: warning: no previous prototype for 'amdgpu_virt_access_debugfs_is

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Date:   Wed, 17 Jun 2020 23:38:56 +0800
From:   kernel test robot <lkp@...el.com>
To:     Yintian Tao <yttao@....com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Alex Deucher <alexander.deucher@....com>,
        Monk Liu <Monk.liu@....com>
Subject: drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:338:6: warning: no previous
 prototype for 'amdgpu_virt_access_debugfs_is_mmio'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   69119673bd50b176ded34032fadd41530fb5af21
commit: d32709dac627e5602fb3e66bcf4316906356120d drm/amdgpu: resume kiq access debugfs
date:   9 weeks ago
config: ia64-randconfig-r012-20200617 (attached as .config)
compiler: ia64-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 d32709dac627e5602fb3e66bcf4316906356120d
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=ia64 

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

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

>> drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:338:6: warning: no previous prototype for 'amdgpu_virt_access_debugfs_is_mmio' [-Wmissing-prototypes]
338 | bool amdgpu_virt_access_debugfs_is_mmio(struct amdgpu_device *adev)
|      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:343:6: warning: no previous prototype for 'amdgpu_virt_access_debugfs_is_kiq' [-Wmissing-prototypes]
343 | bool amdgpu_virt_access_debugfs_is_kiq(struct amdgpu_device *adev)
|      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:28:
drivers/gpu/drm/amd/amdgpu/amdgpu.h:177:18: warning: 'sched_policy' defined but not used [-Wunused-const-variable=]
177 | static const int sched_policy = KFD_SCHED_POLICY_HWS;
|                  ^~~~~~~~~~~~
In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:33,
from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30,
from drivers/gpu/drm/amd/amdgpu/../include/dm_pp_interface.h:26,
from drivers/gpu/drm/amd/amdgpu/amdgpu.h:53,
from drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:28:
drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:76:32: warning: 'dc_fixpt_ln2_div_2' defined but not used [-Wunused-const-variable=]
76 | static const struct fixed31_32 dc_fixpt_ln2_div_2 = { 1488522236LL };
|                                ^~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:75:32: warning: 'dc_fixpt_ln2' defined but not used [-Wunused-const-variable=]
75 | static const struct fixed31_32 dc_fixpt_ln2 = { 2977044471LL };
|                                ^~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:74:32: warning: 'dc_fixpt_e' defined but not used [-Wunused-const-variable=]
74 | static const struct fixed31_32 dc_fixpt_e = { 11674931555LL };
|                                ^~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:73:32: warning: 'dc_fixpt_two_pi' defined but not used [-Wunused-const-variable=]
73 | static const struct fixed31_32 dc_fixpt_two_pi = { 26986075409LL };
|                                ^~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:72:32: warning: 'dc_fixpt_pi' defined but not used [-Wunused-const-variable=]
72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL };
|                                ^~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:67:32: warning: 'dc_fixpt_zero' defined but not used [-Wunused-const-variable=]
67 | static const struct fixed31_32 dc_fixpt_zero = { 0 };
|                                ^~~~~~~~~~~~~

vim +/amdgpu_virt_access_debugfs_is_mmio +338 drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c

   337	
 > 338	bool amdgpu_virt_access_debugfs_is_mmio(struct amdgpu_device *adev)
   339	{
   340		return amdgpu_sriov_is_debug(adev) ? true : false;
   341	}
   342	
 > 343	bool amdgpu_virt_access_debugfs_is_kiq(struct amdgpu_device *adev)
   344	{
   345		return amdgpu_sriov_is_normal(adev) ? true : false;
   346	}
   347	

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

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