On Fri, 2013-05-03 at 13:53 +0200, Robert Richter wrote: > On 02.05.13 17:16:18, Arnd Bergmann wrote: > > oprofile fails to build if CONFIG_IRQ_WORK is not already enabled, > > because of the dependency on the RING_BUFFER code that now uses > > the irq work library. > > > > kernel/built-in.o: In function `ring_buffer_unlock_commit': > > :(.text+0x5b8f0): undefined reference to `irq_work_queue' > > kernel/built-in.o: In function `ring_buffer_write': > > :(.text+0x5bd10): undefined reference to `irq_work_queue' > > Shouldn't this be fixed in the ring_buffer implementation?
Hmm, I thought I had ring buffer select irq work. I must have not have done that. > > I also do not see, where this comes from. I was successfully compiling > a kernel with OPROFILE and RING_BUFFER enabled but IRQ_WORK disabled. > Do you have that config still available? > The ring buffer code can now wake up waiters, and to do so it requires irq_work. I'll send a patch. Thanks, -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
