diff options
| author |   David S. Miller <davem@davemloft.net> | 2018-08-09 11:52:36 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-08-09 11:52:36 -0700 |
| commit | a736e074680745faa5dc6be8dd3c58ad4850aab9 (patch) | |
| tree | 620e6d20cfce3806399fbefa8d911cc848463f9b /net/packet | |
| parent | Merge branch 'Add-support-for-XGMAC2-in-stmmac' (diff) | |
| parent | Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 (diff) | |
| download | linux-dev-a736e074680745faa5dc6be8dd3c58ad4850aab9.tar.xz linux-dev-a736e074680745faa5dc6be8dd3c58ad4850aab9.zip | |
Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net
Overlapping changes in RXRPC, changing to ktime_get_seconds() whilst
adding some tracepoints.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/packet')
| -rw-r--r-- | net/packet/af_packet.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 345e38058ae5..75c92a87e7b2 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -4230,6 +4230,8 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u, } if (req->tp_block_nr) { + unsigned int min_frame_size; + /* Sanity tests and some calculations */ err = -EBUSY; if (unlikely(rb->pg_vec)) @@ -4252,12 +4254,12 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u, goto out; if (unlikely(!PAGE_ALIGNED(req->tp_block_size))) goto out; + min_frame_size = po->tp_hdrlen + po->tp_reserve; if (po->tp_version >= TPACKET_V3 && - req->tp_block_size <= - BLK_PLUS_PRIV((u64)req_u->req3.tp_sizeof_priv) + sizeof(struct tpacket3_hdr)) + req->tp_block_size < + BLK_PLUS_PRIV((u64)req_u->req3.tp_sizeof_priv) + min_frame_size) goto out; - if (unlikely(req->tp_frame_size < po->tp_hdrlen + - po->tp_reserve)) + if (unlikely(req->tp_frame_size < min_frame_size)) goto out; if (unlikely(req->tp_frame_size & (TPACKET_ALIGNMENT - 1))) goto out; |