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libceph: Remove VLA usage of skcipher

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In the quest to remove all stack VLA usage from the kernel[1], this
replaces struct crypto_skcipher and SKCIPHER_REQUEST_ON_STACK() usage
with struct crypto_sync_skcipher and SYNC_SKCIPHER_REQUEST_ON_STACK(),
which uses a fixed stack size.

[1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com

Cc: Ilya Dryomov <idryomov@gmail.com>
Cc: "Yan, Zheng" <zyan@redhat.com>
Cc: Sage Weil <sage@redhat.com>
Cc: ceph-devel@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Kees Cook
2018-09-18 19:10:45 -07:00
committed by Herbert Xu
parent dc568baf9b
commit 69d6302b65
2 changed files with 7 additions and 7 deletions
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2
net/ceph/crypto.h
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@@ -13,7 +13,7 @@ struct ceph_crypto_key {
struct ceph_timespec created;
int len;
void *key;
struct crypto_skcipher *tfm;
struct crypto_sync_skcipher *tfm;
};
int ceph_crypto_key_clone(struct ceph_crypto_key *dst,