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

From: Masami Hiramatsu
Date: Tue Sep 14 2021 - 21:47:23 EST


On Tue, 14 Sep 2021 18:21:09 -0700
Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:

> 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.

Hmm, OK. Let me copy lib/bootconfig.c itself into tools/bootconfig
as a user-space code.

Thank you,

>
> Linus


--
Masami Hiramatsu <mhiramat@xxxxxxxxxx>