Re: [PATCH v2] serial: imx: Fix sysrq deadlock

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On Fri, Oct 01, 2021 at 07:17:53AM -0300, Fabio Estevam wrote:
> Hi Johan,
> 
> On Fri, Oct 1, 2021 at 4:53 AM Johan Hovold <johan@xxxxxxxxxx> wrote:
> 
> > Why did you drop the cast? If there's anything in the high bits you'd
> > see the help text printed as you report below (even if it seems
> > unlikely).
> 
> That was it, thanks!
> 
> I have taken your feedback into consideration and sent a v3.
> 
> The only one that I didn't do was to reorganize the code to avoid the
> unlock/lock as
> this would require a significant rework.

Judging from a quick look at the code is very straight-forward, and we
don't want to add interrupt latency just to shut up lockdep.

Johan



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