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Diffstat (limited to 'net/packet/af_packet.c')
-rw-r--r--net/packet/af_packet.c50
1 files changed, 25 insertions, 25 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index ec8ea27733ac..9d46a07a15c0 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -339,14 +339,33 @@ static int __packet_get_status(struct packet_sock *po, void *frame)
}
}
+static bool tpacket_get_timestamp(struct sk_buff *skb, struct timespec *ts,
+ unsigned int flags)
+{
+ struct skb_shared_hwtstamps *shhwtstamps = skb_hwtstamps(skb);
+
+ if (shhwtstamps) {
+ if ((flags & SOF_TIMESTAMPING_SYS_HARDWARE) &&
+ ktime_to_timespec_cond(shhwtstamps->syststamp, ts))
+ return true;
+ if ((flags & SOF_TIMESTAMPING_RAW_HARDWARE) &&
+ ktime_to_timespec_cond(shhwtstamps->hwtstamp, ts))
+ return true;
+ }
+
+ if (ktime_to_timespec_cond(skb->tstamp, ts))
+ return true;
+
+ return false;
+}
+
static void __packet_set_timestamp(struct packet_sock *po, void *frame,
- ktime_t tstamp)
+ struct sk_buff *skb)
{
union tpacket_uhdr h;
struct timespec ts;
- if (!ktime_to_timespec_cond(tstamp, &ts) ||
- !sock_flag(&po->sk, SOCK_TIMESTAMPING_SOFTWARE))
+ if (!tpacket_get_timestamp(skb, &ts, po->tp_tstamp))
return;
h.raw = frame;
@@ -1688,26 +1707,6 @@ drop:
return 0;
}
-static void tpacket_get_timestamp(struct sk_buff *skb, struct timespec *ts,
- unsigned int flags)
-{
- struct skb_shared_hwtstamps *shhwtstamps = skb_hwtstamps(skb);
-
- if (shhwtstamps) {
- if ((flags & SOF_TIMESTAMPING_SYS_HARDWARE) &&
- ktime_to_timespec_cond(shhwtstamps->syststamp, ts))
- return;
- if ((flags & SOF_TIMESTAMPING_RAW_HARDWARE) &&
- ktime_to_timespec_cond(shhwtstamps->hwtstamp, ts))
- return;
- }
-
- if (ktime_to_timespec_cond(skb->tstamp, ts))
- return;
-
- getnstimeofday(ts);
-}
-
static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev,
struct packet_type *pt, struct net_device *orig_dev)
{
@@ -1804,7 +1803,8 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev,
spin_unlock(&sk->sk_receive_queue.lock);
skb_copy_bits(skb, 0, h.raw + macoff, snaplen);
- tpacket_get_timestamp(skb, &ts, po->tp_tstamp);
+ if (!tpacket_get_timestamp(skb, &ts, po->tp_tstamp))
+ getnstimeofday(&ts);
switch (po->tp_version) {
case TPACKET_V1:
@@ -1908,7 +1908,7 @@ static void tpacket_destruct_skb(struct sk_buff *skb)
ph = skb_shinfo(skb)->destructor_arg;
BUG_ON(atomic_read(&po->tx_ring.pending) == 0);
atomic_dec(&po->tx_ring.pending);
- __packet_set_timestamp(po, ph, skb->tstamp);
+ __packet_set_timestamp(po, ph, skb);
__packet_set_status(po, ph, TP_STATUS_AVAILABLE);
}
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