On Thu, 2010-04-01 at 10:41 +0800, gshan wrote: > One of my private driver need it. I don't know how to do it.
Then your driver is most certainly doing something wrong :-) No driver needs that. Ever. What is it trying to do more precisely ? I might be able to explain what the right approach is if you can tell me what the driver is trying to disable all system IRQs for ? Keep in mind that local_irq_save() does a lot more than just masking external interrupts from your device. It masks them from -all- devices, including timer interrupts, perfmon interrupts, etc... Doing so on all cores is generally a big no-no and almost never really necessary. Cheers, Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
