Commit 7ae8639c authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller

tcp: remove invalid __rcu annotation

struct tcp_fastopen_context has a field named tfm, which is a pointer
to a crypto_cipher structure.

It currently has a __rcu annotation, which is not needed at all.

tcp_fastopen_ctx is the pointer fetched by rcu_dereference(), but once
we have a pointer to current tcp_fastopen_context, we do not use/need
rcu_dereference() to access tfm.

This fixes a lot of sparse errors like the following :

net/ipv4/tcp_fastopen.c:21:31: warning: incorrect type in argument 1 (different address spaces)
net/ipv4/tcp_fastopen.c:21:31:    expected struct crypto_cipher *tfm
net/ipv4/tcp_fastopen.c:21:31:    got struct crypto_cipher [noderef] <asn:4>*tfm
Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Cc: Jerry Chu <hkchu@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e4fc408e
......@@ -1319,7 +1319,7 @@ void tcp_fastopen_cookie_gen(__be32 addr, struct tcp_fastopen_cookie *foc);
/* Fastopen key context */
struct tcp_fastopen_context {
struct crypto_cipher __rcu *tfm;
struct crypto_cipher *tfm;
__u8 key[TCP_FASTOPEN_KEY_LENGTH];
struct rcu_head rcu;
};
......
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