Re: [PATCH 2/5] treewide: Replace open-coded flex arrays in unions

[Marc Kleine-Budde]

On 18.08.2021 01:11:15, Kees Cook wrote:
> diff --git a/drivers/net/can/usb/etas_es58x/es581_4.h b/drivers/net/can/usb/etas_es58x/es581_4.h
> index 4bc60a6df697..8657145dc2a9 100644
> --- a/drivers/net/can/usb/etas_es58x/es581_4.h
> +++ b/drivers/net/can/usb/etas_es58x/es581_4.h
> @@ -192,7 +192,7 @@ struct es581_4_urb_cmd {
>  		struct es581_4_rx_cmd_ret rx_cmd_ret;
>  		__le64 timestamp;
>  		u8 rx_cmd_ret_u8;
> -		u8 raw_msg[0];
> +		flex_array(u8 raw_msg);
>  	} __packed;
>  
>  	__le16 reserved_for_crc16_do_not_use;
> diff --git a/drivers/net/can/usb/etas_es58x/es58x_fd.h b/drivers/net/can/usb/etas_es58x/es58x_fd.h
> index ee18a87e40c0..3053e0958132 100644
> --- a/drivers/net/can/usb/etas_es58x/es58x_fd.h
> +++ b/drivers/net/can/usb/etas_es58x/es58x_fd.h
> @@ -228,7 +228,7 @@ struct es58x_fd_urb_cmd {
>  		struct es58x_fd_tx_ack_msg tx_ack_msg;
>  		__le64 timestamp;
>  		__le32 rx_cmd_ret_le32;
> -		u8 raw_msg[0];
> +		flex_array(u8 raw_msg[]);
>  	} __packed;

This doesn't look consistent, what's preferred?

u8 raw_msg[0];  -> flex_array(u8 raw_msg);
 - or-
                -> flex_array(u8 raw_msg[]);

regards,
Marc

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