Typecasting a void pointer to unsigned long in zsmalloc.c

jim.cromie at gmail.com jim.cromie at gmail.com
Thu Jan 23 13:44:02 EST 2025


On Thu, Jan 23, 2025 at 9:27 AM Sotir Danailov <sndanailov at gmail.com> wrote:
>
> > This is a requirement that Linux makes for the compiler to work with
> > it for any platform that Linux runs on.
>
> Ah I see, thank you! Is this documented somewhere? I was searching
> for information on this, but nothing came up in the kernel docs.
>

theres a chance that it is implemented as a BUILD_BUG,
which would then be kinda self-documenting.
These are compiled in assertions, and break the build early.
Look at container_of() and marvel at its mechanics.

> _______________________________________________
> Kernelnewbies mailing list
> Kernelnewbies at kernelnewbies.org
> https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies



More information about the Kernelnewbies mailing list