linux-kernel - Re: [PATCH] mailbox: tegra-hsp: Clear mailbox before using message

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Message-ID: <ad0b5587-00b4-467b-b646-738e1b2f92f9@nvidia.com>
Date: Wed, 27 Nov 2024 15:56:10 +0000
From: Jon Hunter <jonathanh@...dia.com>
To: Kartik Rajput <kkartik@...dia.com>, jassisinghbrar@...il.com,
 thierry.reding@...il.com, linux-tegra@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mailbox: tegra-hsp: Clear mailbox before using message



On 27/11/2024 06:20, Kartik Rajput wrote:
> From: Pekka Pessi <ppessi@...dia.com>
> 
> Some clients depend on mailbox being empty before processing the
> message. On RT kernel, the thread processing the message may be on
> different CPU or running with higher priority than the interrupt
> handler thread and they may act on the message before mailbox is
> emptied.
> 
> Signed-off-by: Pekka Pessi <ppessi@...dia.com>
> Signed-off-by: Kartik Rajput <kkartik@...dia.com>

We should include a fixes tag here. I believe that this would be a good 
candidate for stable too and so worth CC stable on this.

Thanks!
Jon

-- 
nvpublic