Re: [PATCH v2] serial: imx: Fix sysrq deadlock
From: Johan Hovold <johan@kernel.org>
Date: 2021-10-01 13:48:43
From: Johan Hovold <johan@kernel.org>
Date: 2021-10-01 13:48:43
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 [off-list ref] wrote:quoted
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