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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2016-11-21 16:26:19 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2016-11-22 15:02:25 +0800 |
| commit | c8467f7a3620698bf3c22f0e199b550fb611a8ae (patch) | |
| tree | ac4aff2322676b17b409a142c1f41a77eb6678ad /crypto/scatterwalk.c | |
| parent | 8acf7a106326eb94e143552de81f34308149121c (diff) | |
| download | lwn-c8467f7a3620698bf3c22f0e199b550fb611a8ae.tar.gz lwn-c8467f7a3620698bf3c22f0e199b550fb611a8ae.zip | |
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: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/scatterwalk.c')
| -rw-r--r-- | crypto/scatterwalk.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/crypto/scatterwalk.c b/crypto/scatterwalk.c index 52ce17a3dd63..c16c94f88733 100644 --- a/crypto/scatterwalk.c +++ b/crypto/scatterwalk.c @@ -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); |