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include:mktomail.com include:spf-0014ca01.pphosted.com include:spf.protection.outlook.com include:auth.msgapp.com include:spf.mandrillapp.com ~all X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-10-11_07:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_check_notspam policy=outbound_check score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=798 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1807170000 definitions=main-1810110156 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP According to the PCIe specification, although the MSI data is only 16bits, the upper 16bits should be written as 0. Use writel instead of writew when writing the MSI data to the host. Fixes: 37dddf14f1ae ("PCI: cadence: Add EndPoint Controller driver for Cadence PCIe controller") Signed-off-by: Alan Douglas --- drivers/pci/controller/pcie-cadence-ep.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/controller/pcie-cadence-ep.c b/drivers/pci/controller/pcie-cadence-ep.c index 6692654..c3a0889 100644 --- a/drivers/pci/controller/pcie-cadence-ep.c +++ b/drivers/pci/controller/pcie-cadence-ep.c @@ -355,7 +355,7 @@ static int cdns_pcie_ep_send_msi_irq(struct cdns_pcie_ep *ep, u8 fn, ep->irq_pci_addr = (pci_addr & ~pci_addr_mask); ep->irq_pci_fn = fn; } - writew(data, ep->irq_cpu_addr + (pci_addr & pci_addr_mask)); + writel(data, ep->irq_cpu_addr + (pci_addr & pci_addr_mask)); return 0; }