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Committer:
Hans Verkuil
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Date:
2020-02-21 11:44:21 UTC
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Revision ID:
git-v1:5709252ce51b84f88db3a733770cf2b88b4b4f9e
v4l2-compliance: improve USERPTR streaming tests
Verify that no memory before/after the actual buffer was
written. This helps testing flaky DMA engines that say they
can do USERPTR with contiguous or scatter-gather DMA, but in
reality they can't cope with the corner cases in the first
and last page of the malloc()ed data where you only write
part of a page.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>