Re: [PATCH v4 5/6] can: c_can: prepare to up the message objects number

[Marc Kleine-Budde]

On 02.03.2021 22:54:34, Dario Binacchi wrote:
> diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c
> index 77b9aee56154..0052ba5197e0 100644
> --- a/drivers/net/can/c_can/c_can.c
> +++ b/drivers/net/can/c_can/c_can.c
[...]
> -struct net_device *alloc_c_can_dev(void)
> +struct net_device *alloc_c_can_dev(int msg_obj_num)
>  {
>  	struct net_device *dev;
>  	struct c_can_priv *priv;
> +	int msg_obj_tx_num = msg_obj_num / 2;
>  
> -	dev = alloc_candev(sizeof(struct c_can_priv), C_CAN_MSG_OBJ_TX_NUM);
> +	dev = alloc_candev(sizeof(*priv) + sizeof(u32) * msg_obj_tx_num,
> +			   msg_obj_tx_num);

I've converted this to make use of the struct_size() macro:

+       dev = alloc_candev(struct_size(priv, dlc, msg_obj_tx_num),
+                          msg_obj_tx_num);

regards,
Marc

-- 
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