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crypto: switch af_alg_make_sg() to iov_iter

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With that, all ->sendmsg() instances are converted to iov_iter primitives
and are agnostic wrt the kind of iov_iter they are working with.
So's the last remaining ->recvmsg() instance that wasn't kind-agnostic yet.
All ->sendmsg() and ->recvmsg() advance ->msg_iter by the amount actually
copied and none of them modifies the underlying iovec, etc.

Cc: linux-crypto@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2014-11-28 16:39:25 -05:00
parent 31a25fae85
commit 1d10eb2f15
4 changed files with 64 additions and 102 deletions
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3
include/crypto/if_alg.h
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@@ -67,8 +67,7 @@ int af_alg_unregister_type(const struct af_alg_type *type);
int af_alg_release(struct socket *sock);
int af_alg_accept(struct sock *sk, struct socket *newsock);
int af_alg_make_sg(struct af_alg_sgl *sgl, void __user *addr, int len,
int write);
int af_alg_make_sg(struct af_alg_sgl *sgl, struct iov_iter *iter, int len);
void af_alg_free_sg(struct af_alg_sgl *sgl);
int af_alg_cmsg_send(struct msghdr *msg, struct af_alg_control *con);