Fixes an error caused by 3-bit right rotation on offset address calculation of MSI-X table in dw_pcie_ep_raise_msix_irq().
During the development time, by default the offset address of MSI-X table was set to zero, so that even with a 3-bit right rotation the computed result would still be zero and valid, therefore not being noticed this bug.
Fixes: beb4641a787d ("PCI: dwc: Add MSI-X callbacks handler") Signed-off-by: Gustavo Pimentel gustavo.pimentel@synopsys.com Cc: stable@vger.kernel.org --- drivers/pci/controller/dwc/pcie-designware-ep.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c index 1e7b022..de8635a 100644 --- a/drivers/pci/controller/dwc/pcie-designware-ep.c +++ b/drivers/pci/controller/dwc/pcie-designware-ep.c @@ -440,7 +440,6 @@ int dw_pcie_ep_raise_msix_irq(struct dw_pcie_ep *ep, u8 func_no, tbl_offset = dw_pcie_readl_dbi(pci, reg); bir = (tbl_offset & PCI_MSIX_TABLE_BIR); tbl_offset &= PCI_MSIX_TABLE_OFFSET; - tbl_offset >>= 3;
reg = PCI_BASE_ADDRESS_0 + (4 * bir); bar_addr_upper = 0;