On 01/23/2012 04:26 PM, Alan Stern wrote:
As Nikolai Zhubr and Paul Zimmerman pointed out, handling Set-Config and Set-Interface in interrupt context sometimes _is_ wrong, i.e., when disabling endpoints involves calling dma_free_coherent. Apparently on ARM this routine requires process context.
I see. That TLB broadcasting on SMP systems seems to require process context. The other parts seem to be irq safe.
Alan Stern
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