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crypto: scatterwalk - Remove unnecessary aliasing check in map_and_copy

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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: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2016-11-21 16:26:19 +08:00
parent 8acf7a1063
commit c8467f7a36
1 changed files with 0 additions and 4 deletions
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4
crypto/scatterwalk.c
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@ -68,10 +68,6 @@ void scatterwalk_map_and_copy(void *buf, struct scatterlist *sg,
sg = scatterwalk_ffwd(tmp, sg, start);
if (sg_page(sg) == virt_to_page(buf) &&
sg->offset == offset_in_page(buf))
return;
scatterwalk_start(&walk, sg);
scatterwalk_copychunks(buf, &walk, nbytes, out);
scatterwalk_done(&walk, out, 0);