Re: powerpc/lib: fix book3s/32 boot failure due to code patching

From: Michael Ellerman
Date: Thu Oct 04 2018 - 21:37:12 EST


On Mon, 2018-10-01 at 12:21:10 UTC, Christophe Leroy wrote:
> Commit 51c3c62b58b3 ("powerpc: Avoid code patching freed init
> sections") accesses 'init_mem_is_free' flag too early, before the
> kernel is relocated. This provokes early boot failure (before the
> console is active).
>
> As it is not necessary to do this verification that early, this
> patch moves the test into patch_instruction() instead of
> __patch_instruction().
>
> This modification also has the advantage of avoiding unnecessary
> remappings.
>
> Fixes: 51c3c62b58b3 ("powerpc: Avoid code patching freed init sections")
> Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxx>

Applied to powerpc fixes, thanks.

https://git.kernel.org/powerpc/c/b45ba4a51cde29b2939365ef0c07ad

cheers