PCI: switchtec: Add missing __iomem tag to fix sparse warnings

Fix a missing __iomem tag in the init_pfn() function. This fixes a sparse
warning of the form:

  $ make C=2 drivers/pci/switch/
  drivers/pci/switch/switchtec.c:... incorrect type assignment(different address spaces)

Fixes: 080b47def5e5 ("MicroSemi Switchtec management interface driver")
Link: https://lore.kernel.org/r/20200728192434.18993-2-logang@deltatee.com
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c
index 3d5da7f..ba52459 100644 (file)
--- a/drivers/pci/switch/switchtec.c
+++ b/drivers/pci/switch/switchtec.c
@@ -1484,7 +1484,7 @@ static void init_pff(struct switchtec_dev *stdev)
 {
        int i;
        u32 reg;
-       struct part_cfg_regs *pcfg = stdev->mmio_part_cfg;
+       struct part_cfg_regs __iomem *pcfg = stdev->mmio_part_cfg;
 
        for (i = 0; i < SWITCHTEC_MAX_PFF_CSR; i++) {
                reg = ioread16(&stdev->mmio_pff_csr[i].vendor_id);