Re: [PATCH] PCI: dwc: endpoint: Clear outbound address on unmap

[Bjorn Helgaas <helgaas@kernel.org>]

On Fri, Oct 04, 2024 at 11:10:00PM +0900, Damien Le Moal wrote:
> In addition to clearing the atu index bit in ob_window_map, also clear
> the address mapped (outbound_addr array) in dw_pcie_ep_unmap_addr(), to
> make sure that dw_pcie_find_index() does not endup matching again an ATU
> index that was already unmapped.

s/atu/ATU/ to match other usage
s/endup matching again/match/

No need to repost for this, whoever applies it can tweak it.

> Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
> ---
>  drivers/pci/controller/dwc/pcie-designware-ep.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c
> index 501e527c188e..7f4c082a2d90 100644
> --- a/drivers/pci/controller/dwc/pcie-designware-ep.c
> +++ b/drivers/pci/controller/dwc/pcie-designware-ep.c
> @@ -294,6 +294,7 @@ static void dw_pcie_ep_unmap_addr(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
>  	if (ret < 0)
>  		return;
>  
> +	ep->outbound_addr[atu_index] = 0;
>  	dw_pcie_disable_atu(pci, PCIE_ATU_REGION_DIR_OB, atu_index);
>  	clear_bit(atu_index, ep->ob_window_map);
>  }
> -- 
> 2.46.2
>