Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
crypto: null - use memcpy_sglist()
Make null_skcipher_crypt() use memcpy_sglist() instead of the
skcipher_walk API, as this is simpler.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
authored by
Eric Biggers
and committed by
Herbert Xu
aeaad5bf
bde39305
+4
-13
+4
-13
crypto/crypto_null.c
+4
-13
crypto/crypto_null.c
···
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#include <crypto/null.h>
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#include <crypto/internal/hash.h>
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#include <crypto/internal/skcipher.h>
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#include <crypto/scatterwalk.h>
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/string.h>
···
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static int null_skcipher_crypt(struct skcipher_request *req)
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{
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struct skcipher_walk walk;
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int err;
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err = skcipher_walk_virt(&walk, req, false);
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while (walk.nbytes) {
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if (walk.src.virt.addr != walk.dst.virt.addr)
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memcpy(walk.dst.virt.addr, walk.src.virt.addr,
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walk.nbytes);
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err = skcipher_walk_done(&walk, 0);
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}
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return err;
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if (req->src != req->dst)
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memcpy_sglist(req->dst, req->src, req->cryptlen);
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return 0;
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}
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static struct shash_alg digest_null = {