From 140c55d4b59581680dc8963612bdc79d19f7bef6 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 6 Aug 2014 11:49:29 +0200 Subject: net-timestamp: sock_tx_timestamp() fix sock_tx_timestamp() should not ignore initial *tx_flags value, as TCP stack can store SKBTX_SHARED_FRAG in it. Also first argument (struct sock *) can be const. Signed-off-by: Eric Dumazet Fixes: 4ed2d765dfac ("net-timestamp: TCP timestamping") Cc: Willem de Bruijn Acked-by: Willem de Bruijn Signed-off-by: David S. Miller --- net/socket.c | 20 +++++++++++++------- 1 file changed, 13 insertions(+), 7 deletions(-) (limited to 'net') diff --git a/net/socket.c b/net/socket.c index ae89569a2db5..95ee7d8682e7 100644 --- a/net/socket.c +++ b/net/socket.c @@ -610,20 +610,26 @@ void sock_release(struct socket *sock) } EXPORT_SYMBOL(sock_release); -void sock_tx_timestamp(struct sock *sk, __u8 *tx_flags) +void sock_tx_timestamp(const struct sock *sk, __u8 *tx_flags) { - *tx_flags = 0; + u8 flags = *tx_flags; + if (sk->sk_tsflags & SOF_TIMESTAMPING_TX_HARDWARE) - *tx_flags |= SKBTX_HW_TSTAMP; + flags |= SKBTX_HW_TSTAMP; + if (sk->sk_tsflags & SOF_TIMESTAMPING_TX_SOFTWARE) - *tx_flags |= SKBTX_SW_TSTAMP; + flags |= SKBTX_SW_TSTAMP; + if (sk->sk_tsflags & SOF_TIMESTAMPING_TX_SCHED) - *tx_flags |= SKBTX_SCHED_TSTAMP; + flags |= SKBTX_SCHED_TSTAMP; + if (sk->sk_tsflags & SOF_TIMESTAMPING_TX_ACK) - *tx_flags |= SKBTX_ACK_TSTAMP; + flags |= SKBTX_ACK_TSTAMP; if (sock_flag(sk, SOCK_WIFI_STATUS)) - *tx_flags |= SKBTX_WIFI_STATUS; + flags |= SKBTX_WIFI_STATUS; + + *tx_flags = flags; } EXPORT_SYMBOL(sock_tx_timestamp); -- cgit