[PATCH 3/4] cxl: sparse: Flag iomem pointers properly

[Daniel Axtens]

Sparse identifies the following address space issues:
/scratch/dja/linux-capi/drivers/misc/cxl/vphb.c:125:17: warning: incorrect type in assignment (different address spaces)
/scratch/dja/linux-capi/drivers/misc/cxl/vphb.c:125:17:    expected void volatile [noderef] <asn:2>*<noident>
/scratch/dja/linux-capi/drivers/misc/cxl/vphb.c:125:17:    got void *<noident>
/scratch/dja/linux-capi/drivers/misc/cxl/vphb.c:220:23: warning: incorrect type in assignment (different address spaces)
/scratch/dja/linux-capi/drivers/misc/cxl/vphb.c:220:23:    expected void [noderef] <asn:2>*cfg_data
/scratch/dja/linux-capi/drivers/misc/cxl/vphb.c:220:23:    got void *<noident>

Fix those by flagging __iomem in the relevant casts.

Signed-off-by: Daniel Axtens <dja at axtens.net>
---
 drivers/misc/cxl/vphb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/misc/cxl/vphb.c b/drivers/misc/cxl/vphb.c
index 2eba002b580b..a7b55772a91c 100644
--- a/drivers/misc/cxl/vphb.c
+++ b/drivers/misc/cxl/vphb.c
@@ -122,7 +122,7 @@ static int cxl_pcie_config_info(struct pci_bus *bus, unsigned int devfn,
 		return PCIBIOS_BAD_REGISTER_NUMBER;
 	addr = cxl_pcie_cfg_addr(phb, bus->number, devfn, offset);
 
-	*ioaddr = (void *)(addr & ~0x3ULL);
+	*ioaddr = (void __iomem *)(addr & ~0x3ULL);
 	*shift = ((addr & 0x3) * 8);
 	switch (len) {
 	case 1:
@@ -217,7 +217,7 @@ int cxl_pci_vphb_add(struct cxl_afu *afu)
 	/* Setup the PHB using arch provided callback */
 	phb->ops = &cxl_pcie_pci_ops;
 	phb->cfg_addr = afu->afu_desc_mmio + afu->crs_offset;
-	phb->cfg_data = (void *)(u64)afu->crs_len;
+	phb->cfg_data = (void __iomem *)(u64)afu->crs_len;
 	phb->private_data = afu;
 	phb->controller_ops = cxl_pci_controller_ops;
 
-- 
2.1.4