Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
MIME-Version: 1.0
References: <20200821194310.3089815-1-keescook@chromium.org>
 <202008311240.9F94A39@keescook> <20200901071133.GA3577996@gmail.com>
 <20200901075937.GA3602433@gmail.com> <20200901081647.GB3602433@gmail.com>
 <202009010816.80F4692@keescook> <CAKwvOdnn3wxYdJomvnveyD_njwRku3fABWT_bS92duihhywLJQ@mail.gmail.com>
 <202009011616.E6DC7D54EF@keescook>
In-Reply-To: <202009011616.E6DC7D54EF@keescook>
From:   Nick Desaulniers <ndesaulniers@google.com>
Date:   Tue, 1 Sep 2020 16:54:08 -0700
Message-ID: <CAKwvOdnDMvECAhKcTVEqcgM9QAUX05Gj27q7fZCbudANX-GWDg@mail.gmail.com>
Subject: Re: [PATCH v6 00/29] Warn on orphan section placement
To:     Kees Cook <keescook@chromium.org>
Cc:     Michael Ellerman <mpe@ellerman.id.au>,
        Masahiro Yamada <masahiroy@kernel.org>,
        Nicholas Piggin <npiggin@gmail.com>,
        Ingo Molnar <mingo@kernel.org>, Borislav Petkov <bp@suse.de>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Mark Rutland <mark.rutland@arm.com>,
        Ard Biesheuvel <ardb@kernel.org>,
        Peter Collingbourne <pcc@google.com>,
        James Morse <james.morse@arm.com>,
        Ingo Molnar <mingo@redhat.com>,
        Russell King <linux@armlinux.org.uk>,
        Arvind Sankar <nivedita@alum.mit.edu>,
        Nathan Chancellor <natechancellor@gmail.com>,
        Arnd Bergmann <arnd@arndb.de>,
        "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" <x86@kernel.org>,
        clang-built-linux <clang-built-linux@googlegroups.com>,
        linux-arch <linux-arch@vger.kernel.org>,
        linux-efi <linux-efi@vger.kernel.org>,
        Linux ARM <linux-arm-kernel@lists.infradead.org>,
        LKML <linux-kernel@vger.kernel.org>
Content-Type: text/plain; charset="UTF-8"
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Tue, Sep 1, 2020 at 4:18 PM Kees Cook <keescook@chromium.org> wrote:
>
> On Tue, Sep 01, 2020 at 11:02:02AM -0700, Nick Desaulniers wrote:
> > Uh oh, the ppc vdso uses cc-ldoption which was removed! (I think by
> > me; let me send patches)  How is that not an error?  Yes, guilty,
> > officer.
> > commit 055efab3120b ("kbuild: drop support for cc-ldoption").
> > Did I not know how to use grep, or?  No, it is
> > commit f2af201002a8 ("powerpc/build: vdso linker warning for orphan sections")
> > that is wrong.
>
> Eek, yeah, the vdso needs fixing; whoops. Lucky for my series, I only need
> ld-option! ;)
>

I didn't cc everyone here on that thread, but here's the series I sent
for it: https://lore.kernel.org/lkml/20200901222523.1941988-1-ndesaulniers@google.com/T/#u
.
-- 
Thanks,
~Nick Desaulniers