From a7b75c5a8c41445f33efb663887ff5f5c3b4454b Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 23 Jul 2020 08:09:07 +0200 Subject: net: pass a sockptr_t into ->setsockopt Rework the remaining setsockopt code to pass a sockptr_t instead of a plain user pointer. This removes the last remaining set_fs(KERNEL_DS) outside of architecture specific code. Signed-off-by: Christoph Hellwig Acked-by: Stefan Schmidt [ieee802154] Acked-by: Matthieu Baerts Signed-off-by: David S. Miller --- net/caif/caif_socket.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'net/caif') diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c index b94ecd931002..3ad0a1df6712 100644 --- a/net/caif/caif_socket.c +++ b/net/caif/caif_socket.c @@ -669,8 +669,8 @@ out_err: return sent ? : err; } -static int setsockopt(struct socket *sock, - int lvl, int opt, char __user *ov, unsigned int ol) +static int setsockopt(struct socket *sock, int lvl, int opt, sockptr_t ov, + unsigned int ol) { struct sock *sk = sock->sk; struct caifsock *cf_sk = container_of(sk, struct caifsock, sk); @@ -685,7 +685,7 @@ static int setsockopt(struct socket *sock, return -EINVAL; if (lvl != SOL_CAIF) goto bad_sol; - if (copy_from_user(&linksel, ov, sizeof(int))) + if (copy_from_sockptr(&linksel, ov, sizeof(int))) return -EINVAL; lock_sock(&(cf_sk->sk)); cf_sk->conn_req.link_selector = linksel; @@ -699,7 +699,7 @@ static int setsockopt(struct socket *sock, return -ENOPROTOOPT; lock_sock(&(cf_sk->sk)); if (ol > sizeof(cf_sk->conn_req.param.data) || - copy_from_user(&cf_sk->conn_req.param.data, ov, ol)) { + copy_from_sockptr(&cf_sk->conn_req.param.data, ov, ol)) { release_sock(&cf_sk->sk); return -EINVAL; } -- cgit v1.2.3-58-ga151