diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-07-23 09:08:48 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-07-25 01:41:53 +0300 |
| commit | 5790642b4748acbb5560f7a6fcb19f572297cf63 (patch) | |
| tree | 32ece112233de5cf9171bbcbe0fbedc3573475e7 /net | |
| parent | b1ea9ff6aff2deae84eccaf0a07cd14912669680 (diff) | |
| download | linux-5790642b4748acbb5560f7a6fcb19f572297cf63.tar.xz | |
net: switch sock_setbindtodevice to sockptr_t
Pass a sockptr_t to prepare for set_fs-less handling of the kernel
pointer from bpf-cgroup.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/sock.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/net/core/sock.c b/net/core/sock.c index 71fc7e4ddd06..5b55bc9397f2 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -609,8 +609,7 @@ int sock_bindtoindex(struct sock *sk, int ifindex, bool lock_sk) } EXPORT_SYMBOL(sock_bindtoindex); -static int sock_setbindtodevice(struct sock *sk, char __user *optval, - int optlen) +static int sock_setbindtodevice(struct sock *sk, sockptr_t optval, int optlen) { int ret = -ENOPROTOOPT; #ifdef CONFIG_NETDEVICES @@ -632,7 +631,7 @@ static int sock_setbindtodevice(struct sock *sk, char __user *optval, memset(devname, 0, sizeof(devname)); ret = -EFAULT; - if (copy_from_user(devname, optval, optlen)) + if (copy_from_sockptr(devname, optval, optlen)) goto out; index = 0; @@ -840,7 +839,7 @@ int sock_setsockopt(struct socket *sock, int level, int optname, */ if (optname == SO_BINDTODEVICE) - return sock_setbindtodevice(sk, optval, optlen); + return sock_setbindtodevice(sk, USER_SOCKPTR(optval), optlen); if (optlen < sizeof(int)) return -EINVAL; |