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| author | David Howells <dhowells@redhat.com> | 2023-09-25 13:03:09 +0100 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2023-10-09 09:35:14 +0200 |
| commit | b5f0e20f444cd150121e0ce912ebd3f2dabd12bc (patch) | |
| tree | 3c64f433fb378f39663e114a201e2f0d92ac789a /net/core | |
| parent | 7c6f353e8a73cbb8919a20e0912021a9f9d24170 (diff) | |
| download | linux-stable-b5f0e20f444cd150121e0ce912ebd3f2dabd12bc.tar.gz linux-stable-b5f0e20f444cd150121e0ce912ebd3f2dabd12bc.tar.bz2 linux-stable-b5f0e20f444cd150121e0ce912ebd3f2dabd12bc.zip | |
iov_iter, net: Move hash_and_copy_to_iter() to net/
Move hash_and_copy_to_iter() to be with its only caller in networking code.
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/r/20230925120309.1731676-13-dhowells@redhat.com
cc: Alexander Viro <viro@zeniv.linux.org.uk>
cc: Jens Axboe <axboe@kernel.dk>
cc: Christoph Hellwig <hch@lst.de>
cc: Christian Brauner <christian@brauner.io>
cc: Matthew Wilcox <willy@infradead.org>
cc: Linus Torvalds <torvalds@linux-foundation.org>
cc: David Laight <David.Laight@ACULAB.COM>
cc: "David S. Miller" <davem@davemloft.net>
cc: Eric Dumazet <edumazet@google.com>
cc: Jakub Kicinski <kuba@kernel.org>
cc: Paolo Abeni <pabeni@redhat.com>
cc: linux-block@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-mm@kvack.org
cc: netdev@vger.kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/datagram.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/net/core/datagram.c b/net/core/datagram.c index 722311eeee18..103d46fa0eeb 100644 --- a/net/core/datagram.c +++ b/net/core/datagram.c @@ -61,6 +61,7 @@ #include <net/tcp_states.h> #include <trace/events/skb.h> #include <net/busy_poll.h> +#include <crypto/hash.h> /* * Is a socket 'connection oriented' ? @@ -489,6 +490,24 @@ short_copy: return 0; } +static size_t hash_and_copy_to_iter(const void *addr, size_t bytes, void *hashp, + struct iov_iter *i) +{ +#ifdef CONFIG_CRYPTO_HASH + struct ahash_request *hash = hashp; + struct scatterlist sg; + size_t copied; + + copied = copy_to_iter(addr, bytes, i); + sg_init_one(&sg, addr, copied); + ahash_request_set_crypt(hash, &sg, NULL, copied); + crypto_ahash_update(hash); + return copied; +#else + return 0; +#endif +} + /** * skb_copy_and_hash_datagram_iter - Copy datagram to an iovec iterator * and update a hash. |