crypto: scatterwalk - Remove unnecessary aliasing check in map_and_copy
The aliasing check in map_and_copy is no longer necessary because the IPsec ESP code no longer provides an IV that points into the actual request data. As this check is now triggering BUG checks due to the vmalloced stack code, I'm removing it. Reported-by: NEric Biggers <ebiggers@google.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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