[PATCH v4 6/6] PCI: rcar-gen4: fix -Wvoid-pointer-to-enum-cast warning

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When building with clang 18 with adding -Wvoid-pointer-to-enum-cast,
the following error happens:

drivers/pci/controller/dwc/pcie-rcar-gen4.c:439:15: error: cast to smaller integer type 'enum dw_pcie_device_mode' from 'const void *' [-Werror,-Wvoid-pointer-to-enum-cast]
  439 |         rcar->mode = (enum dw_pcie_device_mode)of_device_get_match_data(&rcar->pdev->dev);
      |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
To fix this issue, use uintptr_t instead.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
---
 drivers/pci/controller/dwc/pcie-rcar-gen4.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/controller/dwc/pcie-rcar-gen4.c b/drivers/pci/controller/dwc/pcie-rcar-gen4.c
index 5ef575ace9f3..b0f5df00a7de 100644
--- a/drivers/pci/controller/dwc/pcie-rcar-gen4.c
+++ b/drivers/pci/controller/dwc/pcie-rcar-gen4.c
@@ -436,7 +436,7 @@ static void rcar_gen4_remove_dw_pcie_ep(struct rcar_gen4_pcie *rcar)
 /* Common */
 static int rcar_gen4_add_dw_pcie(struct rcar_gen4_pcie *rcar)
 {
-	rcar->mode = (enum dw_pcie_device_mode)of_device_get_match_data(&rcar->pdev->dev);
+	rcar->mode = (uintptr_t)of_device_get_match_data(&rcar->pdev->dev);
 
 	switch (rcar->mode) {
 	case DW_PCIE_RC_TYPE:
-- 
2.25.1





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