linux-kernel - Re: [PATCH] misc: fastrpc: Update number of max fastrpc sessions

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Message-ID: <c5ff1eae-d45f-3aac-c2a0-32d23c33620d@linaro.org>
Date:   Tue, 21 Sep 2021 15:47:37 +0100
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     Jeya R <jeyr@...eaurora.org>, linux-arm-msm@...r.kernel.org
Cc:     gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
        fastrpc.upstream@....qualcomm.com
Subject: Re: [PATCH] misc: fastrpc: Update number of max fastrpc sessions



On 20/09/2021 08:34, Jeya R wrote:
> For latest chipsets, upto 13 fastrpc sessions can be
> supported. This includes 12 compute sessions and 1 cpz
> session. Not updating this might result to out of bounds
> memory access issues if more than 9 context bank nodes
> are added to the DT file.
> 
> Signed-off-by: Jeya R <jeyr@...eaurora.org>

Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>

> ---
>   drivers/misc/fastrpc.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
> index beda610..bd7811e 100644
> --- a/drivers/misc/fastrpc.c
> +++ b/drivers/misc/fastrpc.c
> @@ -24,7 +24,7 @@
>   #define SDSP_DOMAIN_ID (2)
>   #define CDSP_DOMAIN_ID (3)
>   #define FASTRPC_DEV_MAX		4 /* adsp, mdsp, slpi, cdsp*/
> -#define FASTRPC_MAX_SESSIONS	9 /*8 compute, 1 cpz*/
> +#define FASTRPC_MAX_SESSIONS	13 /*12 compute, 1 cpz*/
>   #define FASTRPC_ALIGN		128
>   #define FASTRPC_MAX_FDLIST	16
>   #define FASTRPC_MAX_CRCLIST	64
>