netdev - [PATCH net] tcp: md5: remove tcp_md5_hash

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Message-ID: <1471538995.29842.65.camel@edumazet-glaptop3.roam.corp.google.com>
Date:   Thu, 18 Aug 2016 09:49:55 -0700
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     David Miller <davem@...emloft.net>
Cc:     netdev <netdev@...r.kernel.org>
Subject: [PATCH net] tcp: md5: remove tcp_md5_hash_header()

From: Eric Dumazet <edumazet@...gle.com>

After commit 19689e38eca5 ("tcp: md5: use kmalloc() backed scratch
areas") this function is no longer used.

Signed-off-by: Eric Dumazet <edumazet@...gle.com>
---
 net/ipv4/tcp.c |   17 -----------------
 1 file changed, 17 deletions(-)

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 032a96d78c99..f1a9a0a8a1f3 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -3092,23 +3092,6 @@ struct tcp_md5sig_pool *tcp_get_md5sig_pool(void)
 }
 EXPORT_SYMBOL(tcp_get_md5sig_pool);
 
-int tcp_md5_hash_header(struct tcp_md5sig_pool *hp,
-			const struct tcphdr *th)
-{
-	struct scatterlist sg;
-	struct tcphdr hdr;
-
-	/* We are not allowed to change tcphdr, make a local copy */
-	memcpy(&hdr, th, sizeof(hdr));
-	hdr.check = 0;
-
-	/* options aren't included in the hash */
-	sg_init_one(&sg, &hdr, sizeof(hdr));
-	ahash_request_set_crypt(hp->md5_req, &sg, NULL, sizeof(hdr));
-	return crypto_ahash_update(hp->md5_req);
-}
-EXPORT_SYMBOL(tcp_md5_hash_header);
-
 int tcp_md5_hash_skb_data(struct tcp_md5sig_pool *hp,
 			  const struct sk_buff *skb, unsigned int header_len)
 {