PCI: dwc: ep: Move dw_pcie_ep_find_ext_capability()

Move dw_pcie_ep_find_ext_capability() so that it is located next to
dw_pcie_ep_find_capability().

Additionally, a follow-up commit requires this to be defined earlier
in order to avoid a forward declaration.

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Link: https://lore.kernel.org/r/20250131182949.465530-12-cassel@kernel.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>

diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c
index 8e07d432e74f206085a75c76d9e95f8a3ae61305..6b494781da4218c52aaf47b18b87da9443e28d25 100644 (file)
--- a/drivers/pci/controller/dwc/pcie-designware-ep.c
+++ b/drivers/pci/controller/dwc/pcie-designware-ep.c
@@ -102,6 +102,24 @@ static u8 dw_pcie_ep_find_capability(struct dw_pcie_ep *ep, u8 func_no, u8 cap)
        return __dw_pcie_ep_find_next_cap(ep, func_no, next_cap_ptr, cap);
 }
 
+static unsigned int dw_pcie_ep_find_ext_capability(struct dw_pcie *pci, int cap)
+{
+       u32 header;
+       int pos = PCI_CFG_SPACE_SIZE;
+
+       while (pos) {
+               header = dw_pcie_readl_dbi(pci, pos);
+               if (PCI_EXT_CAP_ID(header) == cap)
+                       return pos;
+
+               pos = PCI_EXT_CAP_NEXT(header);
+               if (!pos)
+                       break;
+       }
+
+       return 0;
+}
+
 static int dw_pcie_ep_write_header(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
                                   struct pci_epf_header *hdr)
 {
@@ -690,24 +708,6 @@ void dw_pcie_ep_deinit(struct dw_pcie_ep *ep)
 }
 EXPORT_SYMBOL_GPL(dw_pcie_ep_deinit);
 
-static unsigned int dw_pcie_ep_find_ext_capability(struct dw_pcie *pci, int cap)
-{
-       u32 header;
-       int pos = PCI_CFG_SPACE_SIZE;
-
-       while (pos) {
-               header = dw_pcie_readl_dbi(pci, pos);
-               if (PCI_EXT_CAP_ID(header) == cap)
-                       return pos;
-
-               pos = PCI_EXT_CAP_NEXT(header);
-               if (!pos)
-                       break;
-       }
-
-       return 0;
-}
-
 static void dw_pcie_ep_init_non_sticky_registers(struct dw_pcie *pci)
 {
        unsigned int offset;