PCI: xgene: Annotate __iomem pointer

"bar_addr" is passed as the argument to writel(), which expects a
"void __iomem *".  Annotate "bar_addr" correctly.  Resolves an sparse
"incorrect type in argument 2 (different address spaces)" warning.

Link: https://lore.kernel.org/r/202105171809.Tay9fImZ-lkp@intel.com
Link: https://lore.kernel.org/r/20210517171839.25777-1-helgaas@kernel.org
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>

diff --git a/drivers/pci/controller/pci-xgene.c b/drivers/pci/controller/pci-xgene.c
index 7f503dd4ff81d5011a3af022666e520518f91ac6..1a412f5377fbf074fe98c8dd0f0eab254b688021 100644 (file)
--- a/drivers/pci/controller/pci-xgene.c
+++ b/drivers/pci/controller/pci-xgene.c
@@ -485,7 +485,7 @@ static void xgene_pcie_setup_ib_reg(struct xgene_pcie_port *port,
 {
        void __iomem *cfg_base = port->cfg_base;
        struct device *dev = port->dev;
-       void *bar_addr;
+       void __iomem *bar_addr;
        u32 pim_reg;
        u64 cpu_addr = entry->res->start;
        u64 pci_addr = cpu_addr - entry->offset;