Eric Dumazet 3308676ec5 tcp: add accessors to read/set tp->snd_cwnd ... [ Upstream commit 4057037535 ] We had various bugs over the years with code breaking the assumption that tp->snd_cwnd is greater than zero. Lately, syzbot reported the WARN_ON_ONCE(!tp->prior_cwnd) added in commit 8b8a321ff7 ("tcp: fix zero cwnd in tcp_cwnd_reduction") can trigger, and without a repro we would have to spend considerable time finding the bug. Instead of complaining too late, we want to catch where and when tp->snd_cwnd is set to an illegal value. Signed-off-by: Eric Dumazet <edumazet@google.com> Suggested-by: Yuchung Cheng <ycheng@google.com> Cc: Neal Cardwell <ncardwell@google.com> Acked-by: Yuchung Cheng <ycheng@google.com> Link: https://lore.kernel.org/r/20220405233538.947344-1-eric.dumazet@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-06-14 18:36:11 +02:00
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events	tcp: add accessors to read/set tp->snd_cwnd	2022-06-14 18:36:11 +02:00
bpf_probe.h	trace: bpf: Allow bpf to attach to bare tracepoints	2021-01-20 14:13:59 -08:00
define_trace.h	tracepoint: Optimize using static_call()	2020-09-01 09:58:06 +02:00
perf.h
syscall.h	tracepoints: Migrate to use SYSCALL_WORK flag	2020-11-16 21:53:15 +01:00
trace_events.h	tracing: Add trace_event helper macros __string_len() and __assign_str_len()	2021-08-17 11:47:52 -04:00