Re: [PATCH 2/2] soc cache: L3 cache lockdown support for HiSilicon SoC

[kernel test robot <lkp@intel.com>]

Hi Yushan,

kernel test robot noticed the following build errors:

[auto build test ERROR on linus/master]
[also build test ERROR on v6.13-rc6 next-20250108]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Yushan-Wang/soc-cache-Add-framework-driver-for-HiSilicon-SoC-cache/20250107-213022
base:   linus/master
patch link:    https://lore.kernel.org/r/20250107132907.3521574-3-wangyushan12%40huawei.com
patch subject: [PATCH 2/2] soc cache: L3 cache lockdown support for HiSilicon SoC
config: arm-allmodconfig (https://download.01.org/0day-ci/archive/20250108/202501082340.1dunPeza-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250108/202501082340.1dunPeza-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202501082340.1dunPeza-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/soc/hisilicon/hisi_soc_l3c.c: In function 'hisi_read_sccl_and_ccl_id':
>> drivers/soc/hisilicon/hisi_soc_l3c.c:456:21: error: implicit declaration of function 'read_cpuid_mpidr' [-Wimplicit-function-declaration]
     456 |         u64 mpidr = read_cpuid_mpidr();
         |                     ^~~~~~~~~~~~~~~~
>> drivers/soc/hisilicon/hisi_soc_l3c.c:457:20: error: implicit declaration of function 'MPIDR_AFFINITY_LEVEL' [-Wimplicit-function-declaration]
     457 |         int aff3 = MPIDR_AFFINITY_LEVEL(mpidr, 3);
         |                    ^~~~~~~~~~~~~~~~~~~~
>> drivers/soc/hisilicon/hisi_soc_l3c.c:462:21: error: 'MPIDR_MT_BITMASK' undeclared (first use in this function)
     462 |         if (mpidr & MPIDR_MT_BITMASK) {
         |                     ^~~~~~~~~~~~~~~~
   drivers/soc/hisilicon/hisi_soc_l3c.c:462:21: note: each undeclared identifier is reported only once for each function it appears in


vim +/read_cpuid_mpidr +456 drivers/soc/hisilicon/hisi_soc_l3c.c

   453	
   454	static void hisi_read_sccl_and_ccl_id(int *scclp, int *cclp)
   455	{
 > 456		u64 mpidr = read_cpuid_mpidr();
 > 457		int aff3 = MPIDR_AFFINITY_LEVEL(mpidr, 3);
   458		int aff2 = MPIDR_AFFINITY_LEVEL(mpidr, 2);
   459		int aff1 = MPIDR_AFFINITY_LEVEL(mpidr, 1);
   460		int sccl, ccl;
   461	
 > 462		if (mpidr & MPIDR_MT_BITMASK) {
   463			sccl = aff3;
   464			ccl = aff2;
   465		} else {
   466			sccl = aff2;
   467			ccl = aff1;
   468		}
   469	
   470		*scclp = sccl;
   471		*cclp = ccl;
   472	}
   473	

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