[avpatel:riscv_trace_acpi_support_v1 /116] drivers/iommu/riscv/iommu.c:1264:29: error: implicit declaration of function 'virt_to_pfn'; did you mean 'virt_to_phys'?

tree:   https://github.com/avpatel/linux.git riscv_trace_acpi_support_v1
head:   2251d17fd6ac95b1f6de32a893141a3481e3ad1d
commit: cbb1d3e45cdd6ff067a162f710402a308710949d [/116] iommu/riscv: Add IRQ domain for interrupt remapping
config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20260813/[email protected]/config)
compiler: alpha-linux-gcc (GCC) 16.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260813/[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 errors (new ones prefixed by >>):

   drivers/iommu/riscv/iommu.c: In function 'riscv_iommu_attach_paging_domain':
>> drivers/iommu/riscv/iommu.c:1264:29: error: implicit declaration of function 'virt_to_pfn'; did you mean 'virt_to_phys'? [-Wimplicit-function-declaration]
    1264 |                 dc.msiptp = virt_to_pfn(domain->msi_root) |
         |                             ^~~~~~~~~~~
         |                             virt_to_phys


vim +1264 drivers/iommu/riscv/iommu.c

  1238	
  1239	static int riscv_iommu_attach_paging_domain(struct iommu_domain *iommu_domain,
  1240						    struct device *dev,
  1241						    struct iommu_domain *old)
  1242	{
  1243		struct riscv_iommu_domain *domain = iommu_domain_to_riscv(iommu_domain);
  1244		struct riscv_iommu_device *iommu = dev_to_iommu(dev);
  1245		struct riscv_iommu_info *info = dev_iommu_priv_get(dev);
  1246		struct pt_iommu_riscv_64_hw_info pt_info;
  1247		struct riscv_iommu_dc dc = {0};
  1248		int ret;
  1249	
  1250		pt_iommu_riscv_64_hw_info(&domain->riscvpt, &pt_info);
  1251	
  1252		if (!riscv_iommu_pt_supported(iommu, pt_info.fsc_iosatp_mode))
  1253			return -ENODEV;
  1254	
  1255		ret = riscv_iommu_ir_attach_paging_domain(domain, dev);
  1256		if (ret)
  1257			return ret;
  1258	
  1259		dc.fsc = FIELD_PREP(RISCV_IOMMU_PC_FSC_MODE, pt_info.fsc_iosatp_mode) |
  1260			 FIELD_PREP(RISCV_IOMMU_PC_FSC_PPN, pt_info.ppn);
  1261		dc.ta = FIELD_PREP(RISCV_IOMMU_PC_TA_PSCID, domain->pscid) | RISCV_IOMMU_PC_TA_V;
  1262	
  1263		if (domain->msi_root) {
> 1264			dc.msiptp = virt_to_pfn(domain->msi_root) |
  1265				    FIELD_PREP(RISCV_IOMMU_DC_MSIPTP_MODE,
  1266					       RISCV_IOMMU_DC_MSIPTP_MODE_FLAT);
  1267			dc.msi_addr_mask = domain->msi_addr_mask;
  1268			dc.msi_addr_pattern = domain->msi_addr_pattern;
  1269		}
  1270	
  1271		if (riscv_iommu_bond_link(domain, dev))
  1272			return -ENOMEM;
  1273	
  1274		riscv_iommu_iodir_update(iommu, dev, &dc);
  1275		riscv_iommu_bond_unlink(info->domain, dev);
  1276		info->domain = domain;
  1277	
  1278		return 0;
  1279	}
  1280	

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