From: Qian Cai
> Sent: 26 July 2019 21:58
> 
> There are a lot of those warnings with GCC8+ 64bit,
> 
...
> Fix them by aligning the structures and fields to 8 bytes instead.
...
>  struct sctp_setpeerprim {
>       sctp_assoc_t            sspp_assoc_id;
> -     struct sockaddr_storage sspp_addr;
> -} __attribute__((packed, aligned(4)));
> +     struct sockaddr_storage sspp_addr __attribute__((aligned(8)));
> +} __attribute__((packed, aligned(8)));

What happens to this one if you change both to aligned(4) ?
Much the same way as:
        struct {
                int a;
                long b __attribute__((aligned(4));
        };
is only 12 bytes on (most) 64bit systems.

        David

-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, 
UK
Registration No: 1397386 (Wales)

Reply via email to