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
Check whether the destination buffer is written to beyond the last byte contained in the scatterlist. Also change IDX1 of the cross-page access offsets to a multiple of 4. This triggers a corruption in the HIFN driver and doesn't seem to negatively impact other testcases. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>