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[
    {
        "EventCode": "0xD0",
        "Counter": "0,1,2,3",
        "UMask": "0x1",
        "EventName": "MACRO_INSTS.DECODED",
        "SampleAfterValue": "2000000",
        "BriefDescription": "Instructions decoded"
    },
    {
        "EventCode": "0xA6",
        "Counter": "0,1,2,3",
        "UMask": "0x1",
        "EventName": "MACRO_INSTS.FUSIONS_DECODED",
        "SampleAfterValue": "2000000",
        "BriefDescription": "Macro-fused instructions decoded"
    },
    {
        "EventCode": "0x19",
        "Counter": "0,1,2,3",
        "UMask": "0x1",
        "EventName": "TWO_UOP_INSTS_DECODED",
        "SampleAfterValue": "2000000",
        "BriefDescription": "Two Uop instructions decoded"
    }
]
>root, there was no parent, and we dereferenced a NULL pointer: BUG: unable to handle kernel NULL pointer dereference at 0000000000000090 IP: [<ffffffff9e424350>] pcie_aspm_init_link_state+0x170/0x820 Recognize that PCI/PCI-X to PCIe Bridges originate PCIe hierarchies just like Root Ports do, so link->root for these devices should also point to itself. Fixes: 51ebfc92b72b ("PCI: Enumerate switches below PCI-to-PCIe bridges") Link: https://bugzilla.kernel.org/show_bug.cgi?id=193411 Link: https://bugzilla.opensuse.org/show_bug.cgi?id=1022181 Tested-by: lists@ssl-mail.com Tested-by: Jayachandran C. <jnair@caviumnetworks.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: stable@vger.kernel.org # v4.2+
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