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From:   Linus Torvalds <torvalds@linux-foundation.org>
Date:   Mon, 13 Sep 2021 18:37:39 -0700
Message-ID: <CAHk-=wj4-=NbwH7-bZQayZa4waw=G8r6inxzBK9NFRQsvUceCg@mail.gmail.com>
Subject: Re: linux-next: build failure after merge of the origin tree
To:     Stephen Rothwell <sfr@canb.auug.org.au>
Cc:     Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Linux Next Mailing List <linux-next@vger.kernel.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        PowerPC <linuxppc-dev@lists.ozlabs.org>
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On Mon, Sep 13, 2021 at 6:29 PM Linus Torvalds
<torvalds@linux-foundation.org> wrote:
>
> Now, do I know *why* that ppc Makefile it does that? No.

Well, that is simple enough to find out..

        git show 77433830ed164

just tells us.

Of course, that also points to scripts/Makefile.lib, which doesn't
have this problem, because it keeps c_flags and a_flags nicely
separated.

Anyway, that just makes me think that something like that patch in my
previous email is the way to go, but I would like to stress (again)
how little testing it had: exactly none.

So please consider that nothing more than a hand-wavy "something like this".

              Linus