linux-kernel - Re: [PATCH v5 4/7] misc: fastrpc: Avoid updating PD type for capability request

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Message-ID: <lmygcblukqlrobkdnwadgatwf2ldum6tfbcxjr2ooi4thbv4bo@qjxv4fo7tluu>
Date: Tue, 11 Jun 2024 14:56:27 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Ekansh Gupta <quic_ekangupt@...cinc.com>
Cc: srinivas.kandagatla@...aro.org, linux-arm-msm@...r.kernel.org, 
	gregkh@...uxfoundation.org, quic_bkumar@...cinc.com, linux-kernel@...r.kernel.org, 
	quic_chennak@...cinc.com, stable <stable@...nel.org>, 
	Caleb Connolly <caleb.connolly@...aro.org>
Subject: Re: [PATCH v5 4/7] misc: fastrpc: Avoid updating PD type for
 capability request

On Tue, Jun 11, 2024 at 04:04:37PM +0530, Ekansh Gupta wrote:
> When user is requesting for DSP capability, the process pd type is
> getting updated to USER_PD which is incorrect as DSP will assume the
> process which is making the request is a user PD and this will never
> get updated back to the original value. The actual PD type should not
> be updated for capability request and it should be serviced by the
> respective PD on DSP side. Don't change process's PD type for DSP
> capability request.
> 
> Fixes: 6c16fd8bdd40 ("misc: fastrpc: Add support to get DSP capabilities")
> Cc: stable <stable@...nel.org>
> Signed-off-by: Ekansh Gupta <quic_ekangupt@...cinc.com>
> Reviewed-by: Caleb Connolly <caleb.connolly@...aro.org>
> ---
>  drivers/misc/fastrpc.c | 1 -
>  1 file changed, 1 deletion(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>


-- 
With best wishes
Dmitry