Re: [PATCH v2 5/5] tools/bootconfig: Define memblock_free_ptr() to fix build error

From: Linus Torvalds
Date: Tue Sep 14 2021 - 21:21:32 EST


On Tue, Sep 14, 2021 at 5:53 PM Masami Hiramatsu <mhiramat@xxxxxxxxxx> wrote:
>
> Since commit 77e02cf57b6c ("memblock: introduce saner
> 'memblock_free_ptr()' interface") introduced memblock_free_ptr()
> to lib/bootconfig.c, bootconfig tool also has to define
> memblock_free_ptr() wrapper, and remove unused __pa() and
> memblock_free().

Christ.

I grepped for this, and couldn't find any use of that memblock_free
function in the tools directory, so I ignored it.

It seems like the code in lib/bootconfig.c is compiled both into the
kernel and into that tool. This is a nightmare. We've explicitly tried
to avoid this for the tooling headers exactly because of issues like
this.

Linus