Hello:
This patch was applied to netdev/net.git (master)
by David S. Miller <davem@xxxxxxxxxxxxx>:
On Thu, 29 Sep 2022 00:25:37 +0900 you wrote:
> syzbot is reporting lockdep warning at rds_tcp_reset_callbacks() [1], for
> commit ac3615e7f3cffe2a ("RDS: TCP: Reduce code duplication in
> rds_tcp_reset_callbacks()") added cancel_delayed_work_sync() into a section
> protected by lock_sock() without realizing that rds_send_xmit() might call
> lock_sock().
>
> We don't need to protect cancel_delayed_work_sync() using lock_sock(), for
> even if rds_{send,recv}_worker() re-queued this work while __flush_work()
> from cancel_delayed_work_sync() was waiting for this work to complete,
> retried rds_{send,recv}_worker() is no-op due to the absence of RDS_CONN_UP
> bit.
>
> [...]
Here is the summary with links:
- net: rds: don't hold sock lock when cancelling work from rds_tcp_reset_callbacks()
https://git.kernel.org/netdev/net/c/a91b750fd662
You are awesome, thank you!
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