[pci:controller/cadence 4/4] drivers/pci/controller/cadence/pcie-cadence-debugfs.c:230:18: warning: conditional expression between different enumeration types ('enum cdns_pcie_hpa_ltssm' and 'enum cdns_pcie_lga_ltssm')

CC: [email protected]
TO: Hans Zhang <[email protected]>
CC: Manivannan Sadhasivam <[email protected]>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git controller/cadence
head:   d70e964dc099821f6c159d8f40aa7be2c62ecfd2
commit: d70e964dc099821f6c159d8f40aa7be2c62ecfd2 [4/4] PCI: cadence: Add LGA IP debugfs for LTSSM status
config: x86_64-allmodconfig (https://download.01.org/0day-ci/archive/20260716/[email protected]/config)
compiler: clang version 22.1.3 (https://github.com/llvm/llvm-project e9846648fd6183ee6d8cbdb4502213fcf902a211)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260716/[email protected]/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 <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/

All warnings (new ones prefixed by >>):

>> drivers/pci/controller/cadence/pcie-cadence-debugfs.c:230:18: warning: conditional expression between different enumeration types ('enum cdns_pcie_hpa_ltssm' and 'enum cdns_pcie_lga_ltssm') [-Wenum-compare-conditional]
     230 |                    pci->is_hpa ? hpa_ltssm : lga_ltssm);
         |                                ^ ~~~~~~~~~   ~~~~~~~~~
   1 warning generated.


vim +230 drivers/pci/controller/cadence/pcie-cadence-debugfs.c

   209	
   210	static int ltssm_status_show(struct seq_file *s, void *v)
   211	{
   212		struct cdns_pcie *pci = s->private;
   213		enum cdns_pcie_lga_ltssm lga_ltssm;
   214		enum cdns_pcie_hpa_ltssm hpa_ltssm;
   215		const char *str_ltssm;
   216		u32 val;
   217	
   218		if (pci->is_hpa) {
   219			val = cdns_pcie_hpa_readl(pci, REG_BANK_IP_REG,
   220						  CDNS_PCIE_HPA_PHY_DBG_STS_REG0);
   221			hpa_ltssm = FIELD_GET(CDNS_PCIE_HPA_LTSSM_STATUS_MASK, val);
   222			str_ltssm = cdns_pcie_hpa_ltssm_status_string(hpa_ltssm);
   223		} else {
   224			val = cdns_pcie_readl(pci, CDNS_PCIE_LM_BASE);
   225			lga_ltssm = FIELD_GET(CDNS_PCIE_LGA_LTSSM_STATUS_MASK, val);
   226			str_ltssm = cdns_pcie_lga_ltssm_status_string(lga_ltssm);
   227		}
   228	
   229		seq_printf(s, "%s (0x%02x)\n", str_ltssm,
 > 230			   pci->is_hpa ? hpa_ltssm : lga_ltssm);
   231	
   232		return 0;
   233	}
   234	

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki