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@xxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
---
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;
--
2.7.4
