Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Tue, 2 Oct 2018 04:46:14 -0700
From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     Nikola Ciprich <nikola.ciprich@linuxbox.cz>
Cc:     linux-kernel@vger.kernel.org, stable@vger.kernel.org,
        Andy Lutomirski <luto@kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Matt Rickard <matt@softrans.com.au>,
        Borislav Petkov <bp@alien8.de>,
        Jason Vas Dias <jason.vas.dias@gmail.com>,
        David Woodhouse <dwmw2@infradead.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Andi Kleen <ak@linux.intel.com>
Subject: Re: [PATCH 4.14 114/165] x86/vdso: Fix vDSO build if a retpoline is
 emitted
Message-ID: <20181002114614.GA2581@kroah.com>
References: <20180903165655.003605184@linuxfoundation.org>
 <20180903165701.245301231@linuxfoundation.org>
 <20181002080655.GV31855@pcnci.linuxbox.cz>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20181002080655.GV31855@pcnci.linuxbox.cz>
User-Agent: Mutt/1.10.1 (2018-07-13)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Tue, Oct 02, 2018 at 10:06:55AM +0200, Nikola Ciprich wrote:
> Hi Greg and others,
> 
> sorry for reporting this so late, but still...
> 
> this breaks build on older compilers, since it requires
> -mindirect-branch=thunk-inline -mindirect-branch-register even though
> retpoline support is disabled in kernel config.. is this expected?

What exact "older compilers" break here?

And does the same breakage happen in 4.18.6 or 4.19-rc?

thanks,

greg k-h