Re: [PATCH v6 07/25] treewide: remove DISABLE_LTO

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On Thu, Oct 15, 2020 at 7:43 AM Kees Cook <keescook@xxxxxxxxxxxx> wrote:
>
> On Mon, Oct 12, 2020 at 05:31:45PM -0700, Sami Tolvanen wrote:
> > This change removes all instances of DISABLE_LTO from
> > Makefiles, as they are currently unused, and the preferred
> > method of disabling LTO is to filter out the flags instead.
> >
> > Suggested-by: Kees Cook <keescook@xxxxxxxxxxxx>
> > Signed-off-by: Sami Tolvanen <samitolvanen@xxxxxxxxxx>
> > Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>
>
> Hi Masahiro,
>
> Since this is independent of anything else and could be seen as a
> general cleanup, can this patch be taken into your tree, just to
> separate it from the list of dependencies for this series?
>
> -Kees
>
> --
> Kees Cook



Yes, this is stale code because GCC LTO was not pulled.

Applied to linux-kbuild.

I added the following historical background.



Note added by Masahiro Yamada:
DISABLE_LTO was added as preparation for GCC LTO, but GCC LTO was
not pulled into the mainline. (https://lkml.org/lkml/2014/4/8/272)




-- 
Best Regards
Masahiro Yamada



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