linux-kernel - Re: [PATCH 4.9 85/96] x86/retpoline: Add initial retpoline support

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Date:   Sun, 21 Jan 2018 17:03:13 +0100
From:   "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>
To:     Jiri Kosina <jikos@...nel.org>
Cc:     "Woodhouse, David" <dwmw@...zon.co.uk>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "jslaby@...e.cz" <jslaby@...e.cz>,
        "Ghitulete, Razvan-alin" <rga@...zon.com>,
        "mingo@...nel.org" <mingo@...nel.org>,
        "peterz@...radead.org" <peterz@...radead.org>,
        "arjan@...ux.intel.com" <arjan@...ux.intel.com>,
        "tim.c.chen@...ux.intel.com" <tim.c.chen@...ux.intel.com>,
        "torvalds@...ux-foundation.org" <torvalds@...ux-foundation.org>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "jpoimboe@...hat.com" <jpoimboe@...hat.com>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>,
        "ak@...ux.intel.com" <ak@...ux.intel.com>,
        "riel@...hat.com" <riel@...hat.com>,
        "keescook@...gle.com" <keescook@...gle.com>,
        "gnomes@...rguk.ukuu.org.uk" <gnomes@...rguk.ukuu.org.uk>,
        "pjt@...gle.com" <pjt@...gle.com>,
        "dave.hansen@...el.com" <dave.hansen@...el.com>,
        "luto@...capital.net" <luto@...capital.net>,
        "thomas.lendacky@....com" <thomas.lendacky@....com>
Subject: Re: [PATCH 4.9 85/96] x86/retpoline: Add initial retpoline support

On Sat, Jan 20, 2018 at 11:21:08PM +0100, Jiri Kosina wrote:
> On Wed, 17 Jan 2018, gregkh@...uxfoundation.org wrote:
> 
> > > http://git.infradead.org/retpoline-stable.git/shortlog/refs/heads/linux-4.4.y
> > 
> > And I've now queued up all of these patches, thanks very much for doing
> > this work!
> 
> The patch below is needed on top of it, otherwise if CONFIG_MODVERSIONS is 
> enabled, all the _thunk symbols end up with 0x0 checksum and fail to load 
> due to mismatch.
> 
> 	0x00000000      __x86_indirect_thunk_rcx        vmlinux EXPORT_SYMBOL
> 
> so please consider queuing it on top; I am queuing it in SLE12 codestreams 
> now.

Many thanks, now queued up.

greg k-h