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commit118397c9baupstream. The advertised resizable BAR size was fixed in commit72e34b8593("PCI: dwc: endpoint: Fix advertised resizable BAR size"). Commit867ab111b2("PCI: dwc: ep: Add a generic dw_pcie_ep_linkdown() API to handle Link Down event") was included shortly after this, and moved the code to another function. When the code was moved, this fix was mistakenly lost. According to the spec, it is illegal to not have a bit set in PCI_REBAR_CAP, and 1 MB is the smallest size allowed. So, set bit 4 in PCI_REBAR_CAP, so that we actually advertise support for a 1 MB BAR size. Fixes:867ab111b2("PCI: dwc: ep: Add a generic dw_pcie_ep_linkdown() API to handle Link Down event") Link: https://lore.kernel.org/r/20241116005950.2480427-2-cassel@kernel.org Link: https://lore.kernel.org/r/20240606-pci-deinit-v1-3-4395534520dc@linaro.org Link: https://lore.kernel.org/r/20240307111520.3303774-1-cassel@kernel.org Signed-off-by: Niklas Cassel <cassel@kernel.org> Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org> Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>