W dniu 20 kwietnia 2011 19:38 użytkownik John Calixto <[email protected]> napisał: > Hi Michal, > > On Wed, 20 Apr 2011, Michał Mirosław wrote: >> >> So... again... What's the problem with anonymous union of pointer and u64? >> > > As Arnd pointed out, this would not work for big endian machines.
There's no endianness dependency in the example I wrote. All fields in a union start at the same address, so compat_ioctl will always take u32 from the beginning of the space reserved, and 32-bit pointer set by userspace will also be at the beginning. Best Regards, Michał Mirosław -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
