On Tue, Oct 5, 2021 at 2:09 PM Jan Engelhardt <jengelh@xxxxxxx> wrote: > > Illegal. > https://en.cppreference.com/w/c/language/conversion > subsection "Pointer conversion" > "No other guarantees are offered" Well, we happily end up casting pointers to 'unsigned long' and back, and doing bit games on the low bits of a pointer value. So it's not like the kernel deeply cares about theoretical portability. But I do discourage casting when not required, just because as much static type checking we can possibly have is good when we can do it. Linus
