From 503275bf371fbab01a14f2e9fd1ac7aa20c81645 Mon Sep 17 00:00:00 2001 From: Yijing Wang Date: Mon, 9 Sep 2013 21:13:04 +0800 Subject: [PATCH] tile/PCI: use cached pci_dev->pcie_mpss to simplify code 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 Signed-off-by: Bjorn Helgaas --- arch/tile/kernel/pci.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/arch/tile/kernel/pci.c b/arch/tile/kernel/pci.c index b7180e6e900d..c45593db7718 100644 --- a/arch/tile/kernel/pci.c +++ b/arch/tile/kernel/pci.c @@ -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. */ -- 2.20.1