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    SubjectRe: linux-next: build warning after merge of the suspend tree
    On Thu, 11 Feb 2010, Rafael J. Wysocki wrote:

    > On Thursday 11 February 2010, Stephen Rothwell wrote:
    > > Hi Rafael,
    > >
    > > After merging the suspend tree, today's linux-next build (powerpc
    > > ppc64_defconfig) produced this warning:
    > >
    > > drivers/usb/core/hcd-pci.c:138: warning: 'wait_for_companions' defined but not used
    > >
    > > Introduced by commit ce74abf51a15ab82a9fae6dcd8a9c0038945f10e ("USB:
    > > implement non-tree resume ordering constraints for PCI host controllers").
    >
    > Thanks for the info, I'll fix this up later today in my tree.

    Clearly wait_for_companions() needs to be inside "#ifdef
    CONFIG_PM_SLEEP ... #endif". In fact, all the new functions added by
    the patch should be protected this way, with suitable do-nothing inline
    versions provided when CONFIG_PM_SLEEP isn't defined.

    Alan Stern



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