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authorWillem de Bruijn <willemb@google.com>2014-09-03 12:01:18 -0400
committerDavid S. Miller <davem@davemloft.net>2014-09-05 15:02:43 -0700
commitc199105d154e029cd8c94cccd35bd073e64acc45 (patch)
treeb268f9b6beba39274edf9b250ea3cfe22bebe25a /include/net/sock.h
parent4357450af3422219d3f77bd54f7b9a8a40f193c9 (diff)
downloadop-kernel-dev-c199105d154e029cd8c94cccd35bd073e64acc45.zip
op-kernel-dev-c199105d154e029cd8c94cccd35bd073e64acc45.tar.gz
net-timestamp: only report sw timestamp if reporting bit is set
The timestamping API has separate bits for generating and reporting timestamps. A software timestamp should only be reported for a packet when the packet has the relevant generation flag (SKBTX_..) set and the socket has reporting bit SOF_TIMESTAMPING_SOFTWARE set. The second check was accidentally removed. Reinstitute the original behavior. Tested: Without this patch, Documentation/networking/txtimestamp reports timestamps regardless of whether SOF_TIMESTAMPING_SOFTWARE is set. After the patch, it only reports them when the flag is set. Fixes: f24b9be5957b ("net-timestamp: extend SCM_TIMESTAMPING ancillary data struct") Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/sock.h')
-rw-r--r--include/net/sock.h4
1 files changed, 1 insertions, 3 deletions
diff --git a/include/net/sock.h b/include/net/sock.h
index 7f2ab72..b9a5bd0 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -2165,9 +2165,7 @@ sock_recv_timestamp(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
*/
if (sock_flag(sk, SOCK_RCVTSTAMP) ||
(sk->sk_tsflags & SOF_TIMESTAMPING_RX_SOFTWARE) ||
- (kt.tv64 &&
- (sk->sk_tsflags & SOF_TIMESTAMPING_SOFTWARE ||
- skb_shinfo(skb)->tx_flags & SKBTX_ANY_SW_TSTAMP)) ||
+ (kt.tv64 && sk->sk_tsflags & SOF_TIMESTAMPING_SOFTWARE) ||
(hwtstamps->hwtstamp.tv64 &&
(sk->sk_tsflags & SOF_TIMESTAMPING_RAW_HARDWARE)))
__sock_recv_timestamp(msg, sk, skb);
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