drivers/thermal/intel/int340x_thermal/processor_thermal_rapl.c:96:50: sparse: sparse: cast removes address space '__iomem' of expression

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   3aaf0a27ffc29b19a62314edd684b9bc6346f9a8
commit: a5923b6c3137b9d4fc2ea1c997f6e4d51ac5d774 thermal: int340x: 
processor_thermal: Refactor MMIO interface
date:   8 weeks ago
config: x86_64-randconfig-s032-20210203 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.3-215-g0fb77bb6-dirty
        # 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a5923b6c3137b9d4fc2ea1c997f6e4d51ac5d774
        git remote add linus 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout a5923b6c3137b9d4fc2ea1c997f6e4d51ac5d774
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64 

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


"sparse warnings: (new ones prefixed by >>)"
>> drivers/thermal/intel/int340x_thermal/processor_thermal_rapl.c:96:50: 
>> sparse: sparse: cast removes address space '__iomem' of expression
   drivers/thermal/intel/int340x_thermal/processor_thermal_rapl.c:100:36: 
sparse: sparse: cast removes address space '__iomem' of expression

vim +/__iomem +96 drivers/thermal/intel/int340x_thermal/processor_thermal_rapl.c

    81  
    82  int proc_thermal_rapl_add(struct pci_dev *pdev, struct 
proc_thermal_device *proc_priv)
    83  {
    84          const struct rapl_mmio_regs *rapl_regs = &rapl_mmio_default;
    85          enum rapl_domain_reg_id reg;
    86          enum rapl_domain_type domain;
    87          int ret;
    88  
    89          if (!rapl_regs)
    90                  return 0;
    91  
    92          for (domain = RAPL_DOMAIN_PACKAGE; domain < RAPL_DOMAIN_MAX; 
domain++) {
    93                  for (reg = RAPL_DOMAIN_REG_LIMIT; reg < 
RAPL_DOMAIN_REG_MAX; reg++)
    94                          if (rapl_regs->regs[domain][reg])
    95                                  rapl_mmio_priv.regs[domain][reg] =
  > 96                                                  
(u64)proc_priv->mmio_base +
    97                                                  
rapl_regs->regs[domain][reg];
    98                  rapl_mmio_priv.limits[domain] = 
rapl_regs->limits[domain];
    99          }
   100          rapl_mmio_priv.reg_unit = (u64)proc_priv->mmio_base + 
rapl_regs->reg_unit;
   101  
   102          rapl_mmio_priv.read_raw = rapl_mmio_read_raw;
   103          rapl_mmio_priv.write_raw = rapl_mmio_write_raw;
   104  
   105          rapl_mmio_priv.control_type = 
powercap_register_control_type(NULL, "intel-rapl-mmio", NULL);
   106          if (IS_ERR(rapl_mmio_priv.control_type)) {
   107                  pr_debug("failed to register powercap control_type.\n");
   108                  return PTR_ERR(rapl_mmio_priv.control_type);
   109          }
   110  
   111          ret = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, 
"powercap/rapl:online",
   112                                  rapl_mmio_cpu_online, 
rapl_mmio_cpu_down_prep);
   113          if (ret < 0) {
   114                  
powercap_unregister_control_type(rapl_mmio_priv.control_type);
   115                  rapl_mmio_priv.control_type = NULL;
   116                  return ret;
   117          }
   118          rapl_mmio_priv.pcap_rapl_online = ret;
   119  
   120          return 0;
   121  }
   122  EXPORT_SYMBOL_GPL(proc_thermal_rapl_add);
   123  

---
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.config.gz
Description: application/gzip