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    SubjectRe: [tip:core/locking] lockdep, bug: Exclude TAINT_FIRMWARE_WORKAROUND from disabling lockdep
    On Tue, 6 Dec 2011 10:13:45 -0500
    Nick Bowler <nbowler@elliptictech.com> wrote:

    > On 2011-12-06 01:38 -0800, tip-bot for Peter Zijlstra wrote:
    > > Commit-ID: df754e6af2f237a6c020c0daff55a1a609338e31
    > > Gitweb: http://git.kernel.org/tip/df754e6af2f237a6c020c0daff55a1a609338e31
    > > Author: Peter Zijlstra <a.p.zijlstra@chello.nl>
    > > AuthorDate: Mon, 14 Nov 2011 13:13:49 +0100
    > > Committer: Ingo Molnar <mingo@elte.hu>
    > > CommitDate: Tue, 6 Dec 2011 08:16:47 +0100
    > >
    > > lockdep, bug: Exclude TAINT_FIRMWARE_WORKAROUND from disabling lockdep
    > >
    > > It's unlikely that TAINT_FIRMWARE_WORKAROUND causes false
    > > lockdep messages, so do not disable lockdep in that case.
    > > We still want to keep lockdep disabled in the
    > > TAINT_OOT_MODULE case:
    > >
    > > - bin-only modules can cause various instabilities in
    > > their and in unrelated kernel code
    > >
    > > - they are impossible to debug for kernel developers
    > >
    > > - they also typically do not have the copyright license
    > > permission to link to the GPL-ed lockdep code.
    >
    > This is all bogus. We have a proprietary module taint for the above.
    > Out of tree does not mean "bin-only", "non-GPL" or anything else like
    > that.

    It also stops people developing drivers of their own who are not
    building them in the kernel tree currently (eg when I'm building tests
    of the GMA500 graphics driver). This is a ludicrous patch and should be
    reverted

    Alan



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