On Tue, Jan 13, 2026 at 11:15:42AM +0100, Niklas Cassel wrote:

On Tue, Jan 13, 2026 at 11:37:14AM +0900, Koichiro Den wrote:

quoted

@@ -626,11 +831,22 @@ static const struct pci_epc_features*
 dw_pcie_ep_get_features(struct pci_epc *epc, u8 func_no, u8 vfunc_no)
 {
 	struct dw_pcie_ep *ep = epc_get_drvdata(epc);
+	struct pci_epc_features *features;
 
 	if (!ep->ops->get_features)
 		return NULL;
 
-	return ep->ops->get_features(ep);
+	features = ep->ops->get_features(ep);
+	if (!features)
+		return NULL;
+
+	/* All DWC-based glue drivers support dynamic inbound mapping */
+	features->dynamic_inbound_mapping = true;

I think you should create a separate patch, before this patch, that simply
sets:
features->dynamic_inbound_mapping = true;

Since that is technically a different feature, independent of this
feature, so it deserves its own patch.

The commit message for that separate patch should mention that the reason
why there are no code changes when exposing/enabling support for the
dynamic_inbound_mapping feature, is because the actual code changes to the
the DWC driver already in commit 4284c88fff0e ("PCI: designware-ep: Allow
pci_epc_set_bar() update inbound map address").


Kind regards,
Niklas