# Re: \[PATCH v5 2/5\] serial: serialize asynchronous write wakeups with the port lock

- From: Andy Shevchenko \<andriy.shevchenko@linux.intel.com\>
- Date: 2026-10-25 15:10:04 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2026/10/17800412
- Thread: https://ratatoskr.run/linux-serial/2026/10/17797284/t.md

```text
On Sun, Oct 25, 2026 at 05:10:03AM +0000, Maciej W. Rozycki wrote:
> On Sat, 24 Oct 2026, James Hilliard wrote:
> 
> > uart_write_wakeup() expects the UART port lock to be held. Several worker,
> > DMA completion and interrupt paths call it without that lock, including
> > indirect calls from uart_handle_cts_change() and the transmit helpers.
> 
>  Fair enough, and thank you for the cleanup and spotting the issue in the 
> first place, however...

He already issues a v6. I think the tactics against AI contributions should be
to not answer for a week or so until there will be a quiescent week. At least
that's what I learn from this patch storm.

-- 
With Best Regards,
Andy Shevchenko



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