[PATCH v23 07/16] PCI: dwc: Expose dw_pcie_write_dbi2() to module

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Since no PCIe controller drivers call this, this change is not required
for now. But, Renesas R-Car Gen4 PCIe controller driver will call this
and if the controller driver is built as a kernel module, the following
build error happens:

  ERROR: modpost: "dw_pcie_write_dbi2" [drivers/pci/controller/dwc/pcie-rcar-gen4-host-drv.ko] undefined!

So, expose dw_pcie_write_dbi2() for it.

[kwilczynski: commit log]
Link: https://lore.kernel.org/linux-pci/20230825093219.2685912-12-yoshihiro.shimoda.uh@xxxxxxxxxxx
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@xxxxxxxxxx>
Reviewed-by: Serge Semin <fancer.lancer@xxxxxxxxx>
---
 drivers/pci/controller/dwc/pcie-designware.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/dwc/pcie-designware.c b/drivers/pci/controller/dwc/pcie-designware.c
index 1f900be94556..250cf7f40b85 100644
--- a/drivers/pci/controller/dwc/pcie-designware.c
+++ b/drivers/pci/controller/dwc/pcie-designware.c
@@ -365,6 +365,7 @@ void dw_pcie_write_dbi2(struct dw_pcie *pci, u32 reg, size_t size, u32 val)
 	if (ret)
 		dev_err(pci->dev, "write DBI address failed\n");
 }
+EXPORT_SYMBOL_GPL(dw_pcie_write_dbi2);
 
 static inline void __iomem *dw_pcie_select_atu(struct dw_pcie *pci, u32 dir,
 					       u32 index)
-- 
2.25.1




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