Commit 257a7303 authored Aug 23, 2017 by Paolo Abeni Committed by David S. Miller Aug 23, 2017

net/sock: allow the user to set negative peek offset



This is necessary to allow the user to disable peeking with
offset once it's enabled.
Unix sockets already allow the above, with this patch we
permit it for udp[6] sockets, too.

Fixes: 627d2d6b ("udp: enable MSG_PEEK at non-zero offset")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 110d8465

net/core/sock.c

+0 −3

Original line number	Original line	Diff line number	Diff line
	@@ -2454,9 +2454,6 @@ EXPORT_SYMBOL(__sk_mem_reclaim);

	int sk_set_peek_off(struct sock *sk, int val)		int sk_set_peek_off(struct sock *sk, int val)
	{		{
	if (val < 0)
	return -EINVAL;

	sk->sk_peek_off = val;		sk->sk_peek_off = val;
	return 0;		return 0;
	}		}