2011/1/18 Johannes Stezenbach <[email protected]>:
> The following compiles cleanly (but not tested):
>
> /* Link detection routines and table */
>
> +union mii_ifreq {
> + struct ifreq ifreq;
> + struct mii_ioctl_data mii;
> +};
> +
Denys has already thought about this solution:
> union {
> struct ifreq ifreq;
> struct {
> char padding[offsetof(struct ifreq, ifr_data)];
> struct mii_ioctl_data mii;
> } s;
>} u;
If struct mii_ioctl_data (or union ifr_ifru) was the first element of
struct ifreq you could use this solution, but it wasn't.
Sergey Naumov.
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