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net: annotate data-races around sk->sk_bind_phc
[ Upstream commit251cd405a9
] sk->sk_bind_phc is read locklessly. Add corresponding annotations. Fixes:d463126e23
("net: sock: extend SO_TIMESTAMPING for PHC binding") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Yangbo Lu <yangbo.lu@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit
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2 changed files with 3 additions and 3 deletions
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@ -894,7 +894,7 @@ static int sock_timestamping_bind_phc(struct sock *sk, int phc_index)
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if (!match)
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return -EINVAL;
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sk->sk_bind_phc = phc_index;
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WRITE_ONCE(sk->sk_bind_phc, phc_index);
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return 0;
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}
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@ -1719,7 +1719,7 @@ int sk_getsockopt(struct sock *sk, int level, int optname,
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case SO_TIMESTAMPING_OLD:
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lv = sizeof(v.timestamping);
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v.timestamping.flags = READ_ONCE(sk->sk_tsflags);
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v.timestamping.bind_phc = sk->sk_bind_phc;
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v.timestamping.bind_phc = READ_ONCE(sk->sk_bind_phc);
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break;
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case SO_RCVTIMEO_OLD:
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@ -935,7 +935,7 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
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if (tsflags & SOF_TIMESTAMPING_BIND_PHC)
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hwtstamp = ptp_convert_timestamp(&hwtstamp,
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sk->sk_bind_phc);
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READ_ONCE(sk->sk_bind_phc));
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if (ktime_to_timespec64_cond(hwtstamp, tss.ts + 2)) {
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empty = 0;
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