From: Paolo Abeni <pabeni@redhat.com> stable inclusion from stable-v6.6.34 commit 41089d9c8a45f5e8000383824ffe88b6abb4e1a2 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IAD6H2 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=... -------------------------------- commit a74762675f700a5473ebe54a671a0788a5b23cc9 upstream. The mptcp_get_int_option() helper is needless open-coded in a couple of places, replace the duplicate code with the helper call. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Mat Martineau <martineau@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net> Stable-dep-of: bd11dc4fb969 ("mptcp: fix full TCP keep-alive support") Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Wang Hai <wanghai38@huawei.com> --- net/mptcp/sockopt.c | 20 ++++++++------------ 1 file changed, 8 insertions(+), 12 deletions(-) diff --git a/net/mptcp/sockopt.c b/net/mptcp/sockopt.c index 29d9e334efa2..120d6f8d32b3 100644 --- a/net/mptcp/sockopt.c +++ b/net/mptcp/sockopt.c @@ -627,13 +627,11 @@ static int mptcp_setsockopt_sol_tcp_cork(struct mptcp_sock *msk, sockptr_t optva { struct mptcp_subflow_context *subflow; struct sock *sk = (struct sock *)msk; - int val; - - if (optlen < sizeof(int)) - return -EINVAL; + int val, ret; - if (copy_from_sockptr(&val, optval, sizeof(val))) - return -EFAULT; + ret = mptcp_get_int_option(msk, optval, optlen, &val); + if (ret) + return ret; lock_sock(sk); sockopt_seq_inc(msk); @@ -657,13 +655,11 @@ static int mptcp_setsockopt_sol_tcp_nodelay(struct mptcp_sock *msk, sockptr_t op { struct mptcp_subflow_context *subflow; struct sock *sk = (struct sock *)msk; - int val; - - if (optlen < sizeof(int)) - return -EINVAL; + int val, ret; - if (copy_from_sockptr(&val, optval, sizeof(val))) - return -EFAULT; + ret = mptcp_get_int_option(msk, optval, optlen, &val); + if (ret) + return ret; lock_sock(sk); sockopt_seq_inc(msk); -- 2.17.1