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SubjectRe: [PATCH] Avoid to use kmalloc in usb/core/message.c
> > > I wonder why the invocations of kmalloc are needed in these functions.
> >
> > Because some architectures can't do DMA to/from the stack.
> doing dma to/from kmalloc also isn't too nice... should be using
> dma_alloc_*() API I guess

The USB core applies dma_map_single to the buffer, so its OK.


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