linux-kernel - Re: [PATCH v4 03/11] misc: fastrpc: Copy the complete capability structure to user

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Message-ID: <trd6fbmxdxsrbxs5t4d4zwiwf2jgws23yb23dlmq2lke3ewxw6@myclylveg2gq>
Date: Fri, 7 Jun 2024 14:09:53 +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>
Subject: Re: [PATCH v4 03/11] misc: fastrpc: Copy the complete capability
 structure to user

On Thu, Jun 06, 2024 at 10:29:23PM +0530, Ekansh Gupta wrote:
> User is passing capability ioctl structure(argp) to get DSP
> capabilities. This argp is copied to a local structure to get domain
> and attribute_id information. After getting the capability, only
> capability value is getting copied to user argp which will not be
> useful if the use is trying to get the capability by checking the
> capability member of fastrpc_ioctl_capability structure. Add changes
> to copy the complete capability structure so that user can get the
> capability value from the expected member of the structure.

Nit: s/Add changes to copy/Copy/


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


> 
> Fixes: 6c16fd8bdd40 ("misc: fastrpc: Add support to get DSP capabilities")
> Cc: stable <stable@...nel.org>
> Signed-off-by: Ekansh Gupta <quic_ekangupt@...cinc.com>
> ---
>  drivers/misc/fastrpc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 


-- 
With best wishes
Dmitry