Re: [PATCH v2 1/2] PCI: dwc: ep: Return after clearing BAR-match inbound mapping

[Niklas Cassel]

On Mon, Feb 02, 2026 at 11:54:06PM +0900, Koichiro Den wrote:
> dw_pcie_ep_clear_ib_maps() first checks whether the inbound mapping for
> a BAR is in BAR Match Mode (tracked via ep_func->bar_to_atu[bar]). Once
> found, the iATU region is disabled and the bookkeeping is cleared.
> 
> BAR Match Mode and Address Match Mode mappings are mutually exclusive
> for a given BAR, so there is nothing left for the Address Match Mode
> teardown path to do after the BAR Match Mode mapping has been removed.
> 
> Return early after clearing the BAR Match Mode mapping to avoid running
> the Address Match Mode teardown path. This makes the helper's intention
> explicit and helps detect incorrect use of pci_epc_set_bar().
> 
> Suggested-by: Niklas Cassel <cassel@xxxxxxxxxx>
> Signed-off-by: Koichiro Den <den@xxxxxxxxxxxxx>
> ---

Reviewed-by: Niklas Cassel <cassel@xxxxxxxxxx>