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    SubjectRe: [PATCH v2 1/2] rtmutex Real-Time Linux: Fixing kernel BUG at kernel/locking/rtmutex.c:997!
    On Tue, Apr 07, 2015 at 02:04:03PM +0200, Peter Zijlstra wrote:
    > +out:
    > +#ifdef CONFIG_PREEMPT_RT_FULL
    > + rt_spin_unlock_after_trylock_in_irq(&base->lock);
    > +#endif
    > + /* The ; ensures that gcc won't complain in the !RT case */
    > + ;
    > }

    Fwiw, I typically use a 'return' in that case. But yes, gcc is a bit of
    a whiny arse when it comes to labels to the end of the block.


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