linux-kernel - drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/smu7_hwmgr.c:1744:11: error: dereferencing pointer to incomplete type 'struct cpuinfo

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Date:   Wed, 5 Jan 2022 05:40:31 +0800
From:   kernel test robot <lkp@...el.com>
To:     Koba Ko <koba.ko@...onical.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Alex Deucher <alexander.deucher@....com>
Subject: drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/smu7_hwmgr.c:1744:11:
 error: dereferencing pointer to incomplete type 'struct cpuinfo_x86'

Hi Koba,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   c9e6606c7fe92b50a02ce51dda82586ebdf99b48
commit: b3dc549986eb7b38eba4a144e979dc93f386751f drm/amdgpu: Disable PCIE_DPM on Intel RKL Platform
date:   4 months ago
config: um-allmodconfig (https://download.01.org/0day-ci/archive/20220105/202201050543.LiLb2LEW-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b3dc549986eb7b38eba4a144e979dc93f386751f
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout b3dc549986eb7b38eba4a144e979dc93f386751f
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=um SHELL=/bin/bash drivers/gpu/drm/

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

All errors (new ones prefixed by >>):

   In file included from arch/x86/um/asm/processor.h:41,
                    from include/linux/spinlock_up.h:8,
                    from include/linux/spinlock.h:92,
                    from include/linux/mmzone.h:8,
                    from include/linux/gfp.h:6,
                    from include/linux/slab.h:15,
                    from drivers/gpu/drm/amd/amdgpu/../pm/inc/pp_debug.h:35,
                    from drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/smu7_hwmgr.c:23:
   drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/smu7_hwmgr.c: In function 'intel_core_rkl_chk':
   arch/um/include/asm/processor-generic.h:104:19: error: called object is not a function or function pointer
     104 | #define cpu_data (&boot_cpu_data)
         |                  ~^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/smu7_hwmgr.c:1742:27: note: in expansion of macro 'cpu_data'
    1742 |  struct cpuinfo_x86 *c = &cpu_data(0);
         |                           ^~~~~~~~
>> drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/smu7_hwmgr.c:1744:11: error: dereferencing pointer to incomplete type 'struct cpuinfo_x86'
    1744 |  return (c->x86 == 6 && c->x86_model == INTEL_FAM6_ROCKETLAKE);
         |           ^~
   drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/smu7_hwmgr.c:1748:1: error: control reaches end of non-void function [-Werror=return-type]
    1748 | }
         | ^
   cc1: some warnings being treated as errors


vim +1744 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/smu7_hwmgr.c

  1738	
  1739	static bool intel_core_rkl_chk(void)
  1740	{
  1741	#if IS_ENABLED(CONFIG_X86_64)
  1742		struct cpuinfo_x86 *c = &cpu_data(0);
  1743	
> 1744		return (c->x86 == 6 && c->x86_model == INTEL_FAM6_ROCKETLAKE);
  1745	#else
  1746		return false;
  1747	#endif
  1748	}
  1749	

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