On Fri, Mar 02, 2018 at 07:07:06PM +0100, Fredrik Noring wrote:
> What is the best way to proceed? Can dma_free_attrs be reworked to handle
> disabled IRQs?

Why do you want to free coherent dma allocations from irq context?
They generally are a long-term resource that as a rule of thumb should
be allocated in ->probe and freed in ->remove.
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