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[Xen-devel] Re: [PATCH 04 of 14] swiotlb: consistently use address_needs_mapping everywhere

FUJITA Tomonori wrote:
On Tue, 16 Dec 2008 12:17:28 -0800
Jeremy Fitzhardinge <jeremy@xxxxxxxx> wrote:

Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
 lib/swiotlb.c |   10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

This patch is wrong.

dma_mask and coherent_dma_mask represent different restrictions.

You can't use coherent_dma_mask for alloc_coherent.

OK. It looks like this patch is just an (erroneous) cleanup, so we can drop it.


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