[PATCH v2 1/1] PCI: mediatek: Correct type for virt_to_phys()
Andy Shevchenko
andriy.shevchenko at linux.intel.com
Thu Sep 14 12:23:24 PDT 2023
virt_to_phys() takes a regular pointer, while driver supplies __iomem
annotated one. Force type to void to make sparse happy, otherwise
pcie-mediatek.c:400:40: sparse: expected void volatile *address
pcie-mediatek.c:400:40: sparse: got void [noderef] __iomem *
pcie-mediatek.c:523:44: sparse: expected void volatile *address
pcie-mediatek.c:523:44: sparse: got void [noderef] __iomem *
Reported-by: Huacai Chen <chenhuacai at kernel.org>
Reported-by: kernel test robot <lkp at intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202309072237.9zxMv4MZ-lkp@intel.com/
Signed-off-by: Andy Shevchenko <andriy.shevchenko at linux.intel.com>
---
drivers/pci/controller/pcie-mediatek.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c
index 66a8f73296fc..5e795afd1cee 100644
--- a/drivers/pci/controller/pcie-mediatek.c
+++ b/drivers/pci/controller/pcie-mediatek.c
@@ -397,7 +397,7 @@ static void mtk_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
phys_addr_t addr;
/* MT2712/MT7622 only support 32-bit MSI addresses */
- addr = virt_to_phys(port->base + PCIE_MSI_VECTOR);
+ addr = virt_to_phys((__force void *)port->base + PCIE_MSI_VECTOR);
msg->address_hi = 0;
msg->address_lo = lower_32_bits(addr);
@@ -520,7 +520,7 @@ static void mtk_pcie_enable_msi(struct mtk_pcie_port *port)
u32 val;
phys_addr_t msg_addr;
- msg_addr = virt_to_phys(port->base + PCIE_MSI_VECTOR);
+ msg_addr = virt_to_phys((__force void *)port->base + PCIE_MSI_VECTOR);
val = lower_32_bits(msg_addr);
writel(val, port->base + PCIE_IMSI_ADDR);
--
2.40.0.1.gaa8946217a0b
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