tcp: make tcp_read_sock() more robust

tcp: make tcp_read_sock() more robust

Origin: https://git.kernel.org/linus/e3d5ea2c011ecb16fb94c56a659364e6b30fac94

If recv_actor() returns an incorrect value, tcp_read_sock()
might loop forever.

Instead, issue a one time warning and make sure to make progress.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Jakub Sitnicki <jakub@cloudflare.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/r/20220302161723.3910001-2-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Gbp-Pq: Topic bugfix/all
Gbp-Pq: Name tcp-make-tcp_read_sock-more-robust.patch