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Date: Fri, 27 Jul 2018 13:57:57 +0200
From: Greg KH <gregkh@linuxfoundation.org>
To: Roman Fietze <roman.fietze@telemotive.de>
Cc: mkl@pengutronix.de, stable@vger.kernel.org
Subject: Re: FAILED: patch "[PATCH] can: m_can.c: fix setup of CCCR register:
 clear CCCR NISO bit" failed to apply to 4.9-stable tree
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 <2039066.6liGY70lrp@rfietze>
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On Fri, Jul 27, 2018 at 01:19:26PM +0200, Roman Fietze wrote:
> Hello,
> 
> On Friday, 27 July 2018 11:16:47 CEST gregkh@linuxfoundation.org wrote:
> 
> > The patch below does not apply to the 4.9-stable tree.
> > ...
> > From 393753b217f05474e714aea36c37501546ed1202 Mon Sep 17 00:00:00 2001
> 
> Telemotive AG 
> Breitwiesen
> 73347 M�hlhausen 
> Tel.: +49 7335 18493-45 
> Mobil: +49 152 56871006 
> Email: roman.fietze@telemotive.de
> 
> Firmensitz: Telemotive AG, 
> Breitwiesen, 73347 M�hlhausen 
> Vorstand: Heinz Huber, Stefan Erhart
> Aufsichtsratsvorsitzender: Anton Schantl
> Amtsgericht: Ulm, HRB 541321
> 
> � 
> > From: Roman Fietze <roman.fietze@telemotive.de>
> > Date: Wed, 11 Jul 2018 15:36:14 +0200
> > Subject: [PATCH] can: m_can.c: fix setup of CCCR register: clear CCCR NISO
> > bit before checking can.ctrlmode
> > 
> > Inside m_can_chip_config(), when setting up the new value of the CCCR,
> > the CCCR_NISO bit is not cleared like the others, CCCR_TEST, CCCR_MON,
> > CCCR_BRSE and CCCR_FDOE, before checking the can.ctrlmode bits for
> > CAN_CTRLMODE_FD_NON_ISO.
> > ...
> 
> This patch cannot be applied to the kernel version 4.9, because the M-CAN 
> driver in this kernel does not support M-CAN controllers with V3.1.x or 
> V3.2.x, only 3.0.x is supported.
> 
> Support for newer versions than 3.0.x was added in commit 
> b03cfc5bb0e11f88988e5da2805867e468d03ca1, somewhere between v4.11-rc7 and 
> v4.12-rc1.

Great, thanks for letting me know.

greg k-h