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| author | David S. Miller <davem@davemloft.net> | 2017-08-22 03:06:42 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-08-22 03:06:42 +0300 |
| commit | e2a7c34fb2856fd5306e307e170e3dde358d0dce (patch) | |
| tree | afeb300b04186b1a1f649b2cd8a401a75878297c /net/core | |
| parent | 7d3f0cd43feea1636dd7746f22fe8249b34d1b79 (diff) | |
| parent | 6470812e22261d2342ef1597be62e63a0423d691 (diff) | |
| download | linux-e2a7c34fb2856fd5306e307e170e3dde358d0dce.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/datagram.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/net/core/datagram.c b/net/core/datagram.c index 2f3277945d35..a4d5f10d83a1 100644 --- a/net/core/datagram.c +++ b/net/core/datagram.c @@ -169,14 +169,20 @@ struct sk_buff *__skb_try_recv_from_queue(struct sock *sk, int *peeked, int *off, int *err, struct sk_buff **last) { + bool peek_at_off = false; struct sk_buff *skb; - int _off = *off; + int _off = 0; + + if (unlikely(flags & MSG_PEEK && *off >= 0)) { + peek_at_off = true; + _off = *off; + } *last = queue->prev; skb_queue_walk(queue, skb) { if (flags & MSG_PEEK) { - if (_off >= skb->len && (skb->len || _off || - skb->peeked)) { + if (peek_at_off && _off >= skb->len && + (_off || skb->peeked)) { _off -= skb->len; continue; } |