| Message ID | a5f26b59ae720edf4f3b90e4ee2d052e2920dca9.1544203444.git.gustavo.pimentel@synopsys.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | PCI: dwc: Print debug error message when MSI-X entry control mask bit is set | expand |
diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c index 1e7b022..a969322 100644 --- a/drivers/pci/controller/dwc/pcie-designware-ep.c +++ b/drivers/pci/controller/dwc/pcie-designware-ep.c @@ -466,8 +466,10 @@ 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);
Add debug error message when MSI-X entry control mask bit is set, to help debug the reason why a MSI-X interrupt is not being triggered. Cc: Jingoo Han <jingoohan1@gmail.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Joao Pinto <joao.pinto@synopsys.com> Cc: linux-pci@vger.kernel.org Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com> --- drivers/pci/controller/dwc/pcie-designware-ep.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)