Re: [PATCH] ARM: mark prepare_page_table as __init

From: Russell King - ARM Linux admin
Date: Tue May 11 2021 - 10:38:37 EST

On Tue, May 11, 2021 at 11:03:13AM +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@xxxxxxxx>
> In some configurations when building with gcc-11, prepare_page_table
> does not get inline, which causes a build time warning for a section
> mismatch:
> WARNING: modpost: vmlinux.o(.text.unlikely+0xce8): Section mismatch in reference from the function prepare_page_table() to the (unknown reference)
> The function prepare_page_table() references
> the (unknown reference) __initdata (unknown).
> This is often because prepare_page_table lacks a __initdata
> annotation or the annotation of (unknown) is wrong.
> Mark the function as __init to avoid the warning regardless of the
> inlining.

I think if we're doing this, it would probably also be a good idea to
drop the "inline" as well, and just let the compiler decide?

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