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    SubjectRe: [PATCH -v3 40/47] PCI: Add pci bus removal through /sys/.../pci_bus/.../remove
    On Fri, Apr 6, 2012 at 8:50 AM, Jiang Liu <> wrote:
    > Hi Yinghai,
    >        I found many other drivers assume that a pci bus won't disappear if
    > the corresponding PCI bridge device still exists. The sysfs interface proposed
    > here breaks that assumption and may cause many access-after-free issues.
    > So what's the purpose of this interface? Should we remove this interface or
    > enhance other drivers to avoid invalid memory access issues?

    ok, will make it only show up on root bus.

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