linux-kernel - Re: [PATCH v2 00/13] OMAP mailbox FIFO removal

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Date: Thu, 13 Jun 2024 09:58:07 +0200
From: Dominic Rath <dominic.rath@...-augsburg.net>
To: Andrew Davis <afd@...com>, Jassi Brar <jassisinghbrar@...il.com>,
 Hari Nagalla <hnagalla@...com>, Nick Saulnier <nsaulnier@...com>,
 Bjorn Andersson <andersson@...nel.org>,
 Mathieu Poirier <mathieu.poirier@...aro.org>
Cc: linux-remoteproc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 00/13] OMAP mailbox FIFO removal

Hello Andrew,

On 10.04.2024 15:59, Andrew Davis wrote:
> Changes for v2:
>   - Use threaded irq as suggested by Hari and to
>       fix possible "scheduling while atomic" issue

sorry for beeing late, I noticed this already got merged.

I was wondering what the reason was for ending up with the
threaded irq.

In your v1 thread your final conclusion appeared to be

> So for now I just kept this using the regular IRQ context as before.

We looked into this some time ago, and noticed that the IRQ approach 
caused problems in the virtio/rpmsg code. I'd like to understand if your 
change was for the same reason, or something else we missed before.

Regards,

Dominic