linux-kernel - Re: [PATCH 4.20 41/65] Revert "powerpc/tm: Unset MSR[TS] if not recheckpointing"

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Date:   Sun, 13 Jan 2019 08:11:40 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Christoph Biedl <linux-kernel.bfrz@...chmal.in-ulm.de>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Guenter Roeck <linux@...ck-us.net>,
        Breno Leitao <leitao@...ian.org>,
        Michal Suchánek <msuchanek@...e.de>,
        Michael Ellerman <mpe@...erman.id.au>
Subject: Re: [PATCH 4.20 41/65] Revert "powerpc/tm: Unset MSR[TS] if not
 recheckpointing"

On Sat, Jan 12, 2019 at 10:35:59PM +0100, Christoph Biedl wrote:
> Greg Kroah-Hartman wrote...
> 
> > 4.20-stable review patch.  If anyone has any objections, please let me know.
> >
> > ------------------
> >
> > From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> >
> > This reverts commit d412deb85a4aada382352a8202beb7af8921cd53 which is
> > commit 6f5b9f018f4c7686fd944d920209d1382d320e4e upstream.
> >
> > It breaks the powerpc build, so drop it from the tree until a fix goes
> > upstream.
> 
> Is this necessary on 4.20? The build failures I reported were on 4.19
> only. The 4.20.2-rc1 kernel for my Powermac G5 builds with and without
> that patch, both boot fine, no visible differences. Again however, Breno
> is authoritative here.

If there's no difference on 4.20, then maybe it's not needed there?  :)

And yes, I would like confirmation from Breno as well.

thanks,

greg k-h