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author | Huang, Tao <huangtao@rock-chips.com> | 2017-03-01 18:40:28 +0800 |
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committer | Huang, Tao <huangtao@rock-chips.com> | 2017-03-01 18:40:28 +0800 |
commit | 5ed6b099c8d4381923b6bb3d39ea2d4ca2e8afdc (patch) | |
tree | 55d45ecf7f58d1638e8247daa5726524a38d224c /drivers/pci/pcie | |
parent | 3f083a523be4ffda44328cfe5a08361ca601bc90 (diff) | |
parent | 4304568925f8191755da36df5c61abb69db9b1b0 (diff) |
Merge branch 'linux-linaro-lsk-v4.4-android' of git://git.linaro.org/kernel/linux-linaro-stable.git
* linux-linaro-lsk-v4.4-android: (434 commits)
Linux 4.4.52
kvm: vmx: ensure VMCS is current while enabling PML
Revert "usb: chipidea: imx: enable CI_HDRC_SET_NON_ZERO_TTHA"
rtlwifi: rtl_usb: Fix for URB leaking when doing ifconfig up/down
block: fix double-free in the failure path of cgwb_bdi_init()
goldfish: Sanitize the broken interrupt handler
x86/platform/goldfish: Prevent unconditional loading
USB: serial: ark3116: fix register-accessor error handling
USB: serial: opticon: fix CTS retrieval at open
USB: serial: spcp8x5: fix modem-status handling
USB: serial: ftdi_sio: fix line-status over-reporting
USB: serial: ftdi_sio: fix extreme low-latency setting
USB: serial: ftdi_sio: fix modem-status error handling
USB: serial: cp210x: add new IDs for GE Bx50v3 boards
USB: serial: mos7840: fix another NULL-deref at open
tty: serial: msm: Fix module autoload
net: socket: fix recvmmsg not returning error from sock_error
ip: fix IP_CHECKSUM handling
irda: Fix lockdep annotations in hashbin_delete().
dccp: fix freeing skb too early for IPV6_RECVPKTINFO
...
Conflicts:
drivers/mmc/core/mmc.c
drivers/usb/dwc3/ep0.c
drivers/usb/host/xhci.h
Change-Id: Icf331a68162ab686d01996a3f43fa2e97543f62e
Diffstat (limited to 'drivers/pci/pcie')
-rw-r--r-- | drivers/pci/pcie/aspm.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c index cbb1765ab00f..b6cf3925f512 100644 --- a/drivers/pci/pcie/aspm.c +++ b/drivers/pci/pcie/aspm.c @@ -518,25 +518,32 @@ static struct pcie_link_state *alloc_pcie_link_state(struct pci_dev *pdev) link = kzalloc(sizeof(*link), GFP_KERNEL); if (!link) return NULL; + INIT_LIST_HEAD(&link->sibling); INIT_LIST_HEAD(&link->children); INIT_LIST_HEAD(&link->link); link->pdev = pdev; - if (pci_pcie_type(pdev) != PCI_EXP_TYPE_ROOT_PORT) { + + /* + * Root Ports and PCI/PCI-X to PCIe Bridges are roots of PCIe + * hierarchies. + */ + if (pci_pcie_type(pdev) == PCI_EXP_TYPE_ROOT_PORT || + pci_pcie_type(pdev) == PCI_EXP_TYPE_PCIE_BRIDGE) { + link->root = link; + } else { struct pcie_link_state *parent; + parent = pdev->bus->parent->self->link_state; if (!parent) { kfree(link); return NULL; } + link->parent = parent; + link->root = link->parent->root; list_add(&link->link, &parent->children); } - /* Setup a pointer to the root port link */ - if (!link->parent) - link->root = link; - else - link->root = link->parent->root; list_add(&link->sibling, &link_list); pdev->link_state = link; |