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When compiling the Rockchip endpoint driver with -W=1, the following warnings can be seen in the output: drivers/pci/controller/pcie-rockchip-ep.c:59: warning: Function parameter or struct member 'perst_irq' not described in 'rockchip_pcie_ep' drivers/pci/controller/pcie-rockchip-ep.c:59: warning: Function parameter or struct member 'perst_asserted' not described in 'rockchip_pcie_ep' drivers/pci/controller/pcie-rockchip-ep.c:59: warning: Function parameter or struct member 'link_up' not described in 'rockchip_pcie_ep' drivers/pci/controller/pcie-rockchip-ep.c:59: warning: Function parameter or struct member 'link_training' not described in 'rockchip_pcie_ep' Fix these warnings by adding the missing field descriptions in struct rockchip_pcie_ep kernel-doc comment. Fixes:a7137cbf6b("PCI: rockchip-ep: Handle PERST# signal in EP mode") Fixes:bd6e61df4b("PCI: rockchip-ep: Improve link training") Link: https://lore.kernel.org/r/20241216133404.540736-1-dlemoal@kernel.org Reported-by: Bjorn Helgaas <helgaas@kernel.org> Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>