]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commitdiff
tile/PCI: use cached pci_dev->pcie_mpss to simplify code
authorYijing Wang <wangyijing@huawei.com>
Mon, 9 Sep 2013 13:13:04 +0000 (21:13 +0800)
committerBjorn Helgaas <bhelgaas@google.com>
Tue, 24 Sep 2013 18:10:04 +0000 (12:10 -0600)
The PCI core caches the "PCIe Max Payload Size Supported" in
pci_dev->pcie_mpss, so use that instead of pcie_capability_read_dword().

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
arch/tile/kernel/pci.c

index b7180e6e900da624e14758138037fd103009881f..c45593db7718e8f1a589fe081054389d97ee4e6d 100644 (file)
@@ -251,15 +251,12 @@ static void fixup_read_and_payload_sizes(void)
        /* Scan for the smallest maximum payload size. */
        for_each_pci_dev(dev) {
                u32 devcap;
-               int max_payload;
 
                if (!pci_is_pcie(dev))
                        continue;
 
-               pcie_capability_read_dword(dev, PCI_EXP_DEVCAP, &devcap);
-               max_payload = devcap & PCI_EXP_DEVCAP_PAYLOAD;
-               if (max_payload < smallest_max_payload)
-                       smallest_max_payload = max_payload;
+               if (dev->pcie_mpss < smallest_max_payload)
+                       smallest_max_payload = dev->pcie_mpss;
        }
 
        /* Now, set the max_payload_size for all devices to that value. */