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Date: Tue, 2 Oct 2018 13:47:34 +0200
From: Nikola Ciprich <nikola.ciprich@linuxbox.cz>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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>,
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        David Woodhouse <dwmw2@infradead.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Andi Kleen <ak@linux.intel.com>,
        Nikola Ciprich <nikola.ciprich@linuxbox.cz>
Subject: Re: [PATCH 4.14 114/165] x86/vdso: Fix vDSO build if a retpoline is
 emitted
Message-ID: <20181002114734.GA31855@pcnci.linuxbox.cz>
References: <20180903165655.003605184@linuxfoundation.org>
 <20180903165701.245301231@linuxfoundation.org>
 <20181002080655.GV31855@pcnci.linuxbox.cz>
 <20181002114614.GA2581@kroah.com>
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RHEL / centos 6: 

gcc-4.4.7

will check newer kernels too..

thanks

n.

On Tue, Oct 02, 2018 at 04:46:14AM -0700, Greg Kroah-Hartman wrote:
> 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
> 

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