# Re: \[PATCH net-next v4 04/15\] mctp: Add sockaddr\_mctp to uapi

- From: Eugene Syromiatnikov \<hidden\>
- Date: 2021-10-14 18:35:09 
- List: netdev
- Page: https://ratatoskr.run/netdev/2021/10/11213486
- Thread: https://ratatoskr.run/netdev/2021/07/8526465/t.md

```text
On Thu, Jul 29, 2021 at 10:20:42AM +0800, Jeremy Kerr wrote:
> This change introduces the user-visible MCTP header, containing the
> protocol-specific addressing definitions.

[...]

> --- a/include/uapi/linux/mctp.h
> +++ b/include/uapi/linux/mctp.h
> @@ -9,7 +9,28 @@
>  #ifndef __UAPI_MCTP_H
>  #define __UAPI_MCTP_H
>  
> +#include <linux/types.h>
> +
> +typedef __u8			mctp_eid_t;
> +
> +struct mctp_addr {
> +	mctp_eid_t		s_addr;
> +};
> +
>  struct sockaddr_mctp {
> +	unsigned short int	smctp_family;

This gap makes the size of struct sockaddr_mctp 2 bytes less at least
on m68k, are you fine with that?

> +	int			smctp_network;
> +	struct mctp_addr	smctp_addr;
> +	__u8			smctp_type;
> +	__u8			smctp_tag;
>  };

```