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/kcm/kcmsock.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'net/kcm') diff --git a/net/kcm/kcmsock.c b/net/kcm/kcmsock.c index 56fac24a627a..56dad9565bc9 100644 --- a/net/kcm/kcmsock.c +++ b/net/kcm/kcmsock.c @@ -1265,7 +1265,7 @@ static void kcm_recv_enable(struct kcm_sock *kcm) } static int kcm_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct kcm_sock *kcm = kcm_sk(sock->sk); int val, valbool; @@ -1277,8 +1277,8 @@ static int kcm_setsockopt(struct socket *sock, int level, int optname, if (optlen < sizeof(int)) return -EINVAL; - if (get_user(val, (int __user *)optval)) - return -EINVAL; + if (copy_from_sockptr(&val, optval, sizeof(int))) + return -EFAULT; valbool = val ? 1 : 0; -- cgit v1.2.3-58-ga151