diff options
author | Yijing Wang <wangyijing@huawei.com> | 2013-09-09 09:13:04 -0400 |
---|---|---|
committer | Bjorn Helgaas <bhelgaas@google.com> | 2013-09-24 14:10:04 -0400 |
commit | 503275bf371fbab01a14f2e9fd1ac7aa20c81645 (patch) | |
tree | 295daeca82f990fce2400440234526af6b1bb264 | |
parent | f1c66c4678ad223bda0dcd261e4048f009234f85 (diff) |
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 <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
-rw-r--r-- | arch/tile/kernel/pci.c | 7 |
1 files 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) | |||
251 | /* Scan for the smallest maximum payload size. */ | 251 | /* Scan for the smallest maximum payload size. */ |
252 | for_each_pci_dev(dev) { | 252 | for_each_pci_dev(dev) { |
253 | u32 devcap; | 253 | u32 devcap; |
254 | int max_payload; | ||
255 | 254 | ||
256 | if (!pci_is_pcie(dev)) | 255 | if (!pci_is_pcie(dev)) |
257 | continue; | 256 | continue; |
258 | 257 | ||
259 | pcie_capability_read_dword(dev, PCI_EXP_DEVCAP, &devcap); | 258 | if (dev->pcie_mpss < smallest_max_payload) |
260 | max_payload = devcap & PCI_EXP_DEVCAP_PAYLOAD; | 259 | smallest_max_payload = dev->pcie_mpss; |
261 | if (max_payload < smallest_max_payload) | ||
262 | smallest_max_payload = max_payload; | ||
263 | } | 260 | } |
264 | 261 | ||
265 | /* Now, set the max_payload_size for all devices to that value. */ | 262 | /* Now, set the max_payload_size for all devices to that value. */ |