Merge branch 'net-sk_err-lockless-annotate'

Eric Dumazet says:

====================
net: annotate lockless accesses to sk_err[_soft]

This patch series is inspired by yet another syzbot report.

Most poll() handlers are lockless and read sk->sk_err
while other cpus can change it.

Add READ_ONCE/WRITE_ONCE() to major/usual offenders.

More to come later.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>