PCI: designware: Remove redundant call to pci_write_config_word()

write_msi_msg() does exactly the same so there is no need to explicitly
call pci_write_config_word() and do the same twice.

Tested-by: Mohit Kumar <mohit.kumar@st.com>
Signed-off-by: Bjørn Erik Nilsen <ben@datarespons.no>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Jingoo Han <jg1.han@samsung.com>

diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
index 61345a18a6d16ae7bb691665aa9dd2f03a055b51..5274085ecd4bc11b53df18465cb67c270e50ffad 100644 (file)
--- a/drivers/pci/host/pcie-designware.c
+++ b/drivers/pci/host/pcie-designware.c
@@ -345,10 +345,10 @@ static int dw_msi_setup_irq(struct msi_chip *chip, struct pci_dev *pdev,
        if (irq < 0)
                return irq;
 
-       msg_ctr &= ~PCI_MSI_FLAGS_QSIZE;
-       msg_ctr |= msgvec << 4;
-       pci_write_config_word(pdev, desc->msi_attrib.pos + PCI_MSI_FLAGS,
-                               msg_ctr);
+       /*
+        * write_msi_msg() will update PCI_MSI_FLAGS so there is
+        * no need to explicitly call pci_write_config_word().
+        */
        desc->msi_attrib.multiple = msgvec;
 
        msg.address_lo = virt_to_phys((void *)pp->msi_data);