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packet: remove deprecated syststamp timestamp

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No device driver will ever return an skb_shared_info structure with
syststamp non-zero, so remove the branch that tests for this and
optionally marks the packet timestamp as TP_STATUS_TS_SYS_HARDWARE.

Do not remove the definition TP_STATUS_TS_SYS_HARDWARE, as processes
may refer to it.

Signed-off-by: Willem de Bruijn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Willem de Bruijn 2014-07-25 18:01:31 -04:00 • committed by David S. Miller
commit 68a360e82e
3 changed files with 11 additions and 21 deletions
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12
net/packet/af_packet.c
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@ -441,14 +441,10 @@ static __u32 tpacket_get_timestamp(struct sk_buff *skb, struct timespec *ts,
{
struct skb_shared_hwtstamps *shhwtstamps = skb_hwtstamps(skb);
if (shhwtstamps) {
if ((flags & SOF_TIMESTAMPING_SYS_HARDWARE) &&
ktime_to_timespec_cond(shhwtstamps->syststamp, ts))
return TP_STATUS_TS_SYS_HARDWARE;
if ((flags & SOF_TIMESTAMPING_RAW_HARDWARE) &&
ktime_to_timespec_cond(shhwtstamps->hwtstamp, ts))
return TP_STATUS_TS_RAW_HARDWARE;
}
if (shhwtstamps &&
(flags & SOF_TIMESTAMPING_RAW_HARDWARE) &&
ktime_to_timespec_cond(shhwtstamps->hwtstamp, ts))
return TP_STATUS_TS_RAW_HARDWARE;
if (ktime_to_timespec_cond(skb->tstamp, ts))
return TP_STATUS_TS_SOFTWARE;