[openeuler:openEuler-1.0-LTS 18112/21544] drivers/iommu/arm-smmu-v3-context.c:591:5: warning: no previous prototype for 'arm_smmu_get_cd_mpam'

[openeuler:openEuler-1.0-LTS 18112/21544] drivers/iommu/arm-smmu-v3-context.c:591:5: warning: no previous prototype for 'arm_smmu_get_cd_mpam'

[kernel test robot]

tree:   https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS
head:   1f0983450549eeea71fb9333517330947a779262
commit: 2b7032bc021bef1eeca51dac8213fd3abce61dc4 [18112/21544] iommu/arm-smmu-v3: Add support to get SMMU mpam configuration
config: arm64-randconfig-001-20240112 (https://download.01.org/0day-ci/archive/20240115/202401150234.kkcdLRso-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240115/202401150234.kkcdLRso-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/202401150234.kkcdLRso-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/iommu/arm-smmu-v3-context.c:569:5: warning: no previous prototype for 'arm_smmu_set_cd_mpam' [-Wmissing-prototypes]
     569 | int arm_smmu_set_cd_mpam(struct iommu_pasid_table_ops *ops,
         |     ^~~~~~~~~~~~~~~~~~~~
>> drivers/iommu/arm-smmu-v3-context.c:591:5: warning: no previous prototype for 'arm_smmu_get_cd_mpam' [-Wmissing-prototypes]
     591 | int arm_smmu_get_cd_mpam(struct iommu_pasid_table_ops *ops,
         |     ^~~~~~~~~~~~~~~~~~~~
--
   drivers/iommu/arm-smmu-v3.c:4296:5: warning: no previous prototype for 'arm_smmu_set_dev_mpam' [-Wmissing-prototypes]
    4296 | int arm_smmu_set_dev_mpam(struct device *dev, int ssid, int partid, int pmg,
         |     ^~~~~~~~~~~~~~~~~~~~~
>> drivers/iommu/arm-smmu-v3.c:4338:5: warning: no previous prototype for 'arm_smmu_get_dev_mpam' [-Wmissing-prototypes]
    4338 | int arm_smmu_get_dev_mpam(struct device *dev, int ssid, int *partid, int *pmg,
         |     ^~~~~~~~~~~~~~~~~~~~~
   drivers/iommu/arm-smmu-v3.c:4298: warning: Function parameter or member 'dev' not described in 'arm_smmu_set_dev_mpam'
   drivers/iommu/arm-smmu-v3.c:4298: warning: Function parameter or member 'ssid' not described in 'arm_smmu_set_dev_mpam'
   drivers/iommu/arm-smmu-v3.c:4298: warning: Function parameter or member 'partid' not described in 'arm_smmu_set_dev_mpam'
   drivers/iommu/arm-smmu-v3.c:4298: warning: Function parameter or member 'pmg' not described in 'arm_smmu_set_dev_mpam'
   drivers/iommu/arm-smmu-v3.c:4298: warning: Function parameter or member 's1mpam' not described in 'arm_smmu_set_dev_mpam'
>> drivers/iommu/arm-smmu-v3.c:4340: warning: Function parameter or member 'ssid' not described in 'arm_smmu_get_dev_mpam'
>> drivers/iommu/arm-smmu-v3.c:4340: warning: Function parameter or member 'partid' not described in 'arm_smmu_get_dev_mpam'
>> drivers/iommu/arm-smmu-v3.c:4340: warning: Function parameter or member 'pmg' not described in 'arm_smmu_get_dev_mpam'
>> drivers/iommu/arm-smmu-v3.c:4340: warning: Function parameter or member 's1mpam' not described in 'arm_smmu_get_dev_mpam'


vim +/arm_smmu_get_cd_mpam +591 drivers/iommu/arm-smmu-v3-context.c

   590	
 > 591	int arm_smmu_get_cd_mpam(struct iommu_pasid_table_ops *ops,
   592			int ssid, int *partid, int *pmg)
   593	{
   594		struct arm_smmu_cd_tables *tbl = pasid_ops_to_tables(ops);
   595		u64 val;
   596		__le64 *cdptr = arm_smmu_get_cd_ptr(tbl, ssid);
   597	
   598		if (!cdptr)
   599			return -ENOMEM;
   600	
   601		val = le64_to_cpu(cdptr[5]);
   602		*partid = FIELD_GET(CTXDESC_CD_5_PARTID_MASK, val);
   603		*pmg = FIELD_GET(CTXDESC_CD_5_PMG_MASK, val);
   604	
   605		return 0;
   606	}
   607	

-- 
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