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net/tcp: switch ->md5_parse to sockptr_t

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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>
This commit is contained in:
Christoph Hellwig
2020-07-23 08:09:05 +02:00
committed by David S. Miller
parent 91ac1ccaff
commit d4c19c4914
4 changed files with 7 additions and 6 deletions
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4
net/ipv4/tcp_ipv4.c
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@@ -1195,7 +1195,7 @@ static void tcp_clear_md5_list(struct sock *sk)
}
static int tcp_v4_parse_md5_keys(struct sock *sk, int optname,
char __user *optval, int optlen)
sockptr_t optval, int optlen)
{
struct tcp_md5sig cmd;
struct sockaddr_in *sin = (struct sockaddr_in *)&cmd.tcpm_addr;
@@ -1206,7 +1206,7 @@ static int tcp_v4_parse_md5_keys(struct sock *sk, int optname,
if (optlen < sizeof(cmd))
return -EINVAL;
if (copy_from_user(&cmd, optval, sizeof(cmd)))
if (copy_from_sockptr(&cmd, optval, sizeof(cmd)))
return -EFAULT;
if (sin->sin_family != AF_INET)