linux-kernel - Re: linux-next: manual merge of the tip tree with the kbuild tree

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Date:   Mon, 23 May 2022 14:37:28 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: linux-next: manual merge of the tip tree with the kbuild tree

On Mon, May 23, 2022 at 1:24 PM Stephen Rothwell <sfr@...b.auug.org.au> wrote:
>
> Hi all,
>
> Today's linux-next merge of the tip tree got a conflict in:
>
>   scripts/Makefile.build
>
> between commit:
>
>   0212301af7bb ("kbuild: do not create *.prelink.o for Clang LTO or IBT")
>
> from the kbuild tree and commit:
>
>   753da4179d08 ("objtool: Remove --lto and --vmlinux in favor of --link")
>
> from the tip tree.
>
> I am not sure if I fixed this up correctly, please check the final result
> when linux-next is released.
>
> I fixed it up (I used the former version) and can carry the fix as
> necessary. This is now fixed as far as linux-next is concerned, but any
> non trivial conflicts should be mentioned to your upstream maintainer
> when your tree is submitted for merging.  You may also want to consider
> cooperating with the maintainer of the conflicting tree to minimise any
> particularly complex conflicts.
>
> --
> Cheers,
> Stephen Rothwell


I think you can fix up around line 420
of scripts/Makefile.build


$(multi-obj-m): objtool-enabled := $(delay-objtool)
$(multi-obj-m): part-of-module := y
$(multi-obj-m): linked-object := y                        <--- Add this
$(multi-obj-m): %.o: %.mod FORCE
        $(call if_changed_rule,ld_multi_m)




-- 
Best Regards
Masahiro Yamada