linux-kernel - Re: [PATCH 4.14 093/105] arm64: drop linker script hack to hide __efistub

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Date:   Sat, 12 Jan 2019 09:03:15 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Nick Desaulniers <ndesaulniers@...gle.com>
Cc:     LKML <linux-kernel@...r.kernel.org>, stable@...r.kernel.org,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Will Deacon <will.deacon@....com>
Subject: Re: [PATCH 4.14 093/105] arm64: drop linker script hack to hide
 __efistub_ symbols

On Fri, Jan 11, 2019 at 10:02:57AM -0800, Nick Desaulniers wrote:
> On Fri, Jan 11, 2019 at 6:34 AM Greg Kroah-Hartman
> <gregkh@...uxfoundation.org> wrote:
> >
> > 4.14-stable review patch.  If anyone has any objections, please let me know.
> >
> > ------------------
> >
> > From: Ard Biesheuvel <ard.biesheuvel@...aro.org>
> >
> > commit dd6846d774693bfa27d7db4dae5ea67dfe373fa1 upstream.
> >
> > Commit 1212f7a16af4 ("scripts/kallsyms: filter arm64's __efistub_
> > symbols") updated the kallsyms code to filter out symbols with
> > the __efistub_ prefix explicitly, so we no longer require the
> > hack in our linker script to emit them as absolute symbols.
> 
> !!!
> Sorry, I think we should pick 1212f7a16af4 ("scripts/kallsyms: filter
> arm64's __efistub_ symbols") for 4.14 to go with this patch.
> 
> My usual gitfu to see the first tag that contained a commit `git
> describe --contains "$tag" | sed 's/~.*//'` says next-20180319 which
> isn't something I recognize or would have expected.  I see the changed
> code in 4.19.y LTS but not 4.14.y LTS.

Now added, thanks.

greg k-h