PCI: dwc: Print debug error message when MSI-X entry control mask bit is set

[sfrench/cifs-2.6.git] / drivers / pci / controller / dwc / pcie-designware-ep.c

diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c
index a543c45c722422371e5d61f53b7c6b4f84400635..5e766af04b6636703b81c335a6745e013d2e8ae6 100644 (file)
--- a/drivers/pci/controller/dwc/pcie-designware-ep.c
+++ b/drivers/pci/controller/dwc/pcie-designware-ep.c
@@ -465,8 +465,10 @@ int dw_pcie_ep_raise_msix_irq(struct dw_pcie_ep *ep, u8 func_no,
 
        iounmap(msix_tbl);
 
-       if (vec_ctrl & PCI_MSIX_ENTRY_CTRL_MASKBIT)
+       if (vec_ctrl & PCI_MSIX_ENTRY_CTRL_MASKBIT) {
+               dev_dbg(pci->dev, "MSI-X entry ctrl set\n");
                return -EPERM;
+       }
 
        ret = dw_pcie_ep_map_addr(epc, func_no, ep->msi_mem_phys, msg_addr,
                                  epc->mem->page_size);