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Subject: Re: [PATCH 0/2] can: m_can_platform: Bug fix of kernel panic for
To:     Dan Murphy <dmurphy@ti.com>,
        Pankaj Sharma <pankj.sharma@samsung.com>,
        linux-can@vger.kernel.org, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org
Cc:     wg@grandegger.com, davem@davemloft.net, rcsekar@samsung.com,
        pankaj.dubey@samsung.com
References: <CGME20191119102134epcas5p4d3c1b18203e2001c189b9fa7a0e3aab5@epcas5p4.samsung.com>
 <1574158838-4616-1-git-send-email-pankj.sharma@samsung.com>
 <f0550b0b-6681-75a3-c58a-28f5b7ca0821@ti.com>
From:   Marc Kleine-Budde <mkl@pengutronix.de>
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Message-ID: <a967e70e-456d-7855-6bb1-2e2285ce6f9b@pengutronix.de>
Date:   Fri, 6 Dec 2019 08:39:02 +0100
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In-Reply-To: <f0550b0b-6681-75a3-c58a-28f5b7ca0821@ti.com>
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Content-Type: multipart/mixed; boundary="R6Lpc9rHMptUxg3wRCeFA8vNFLQfkt4PV";
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From: Marc Kleine-Budde <mkl@pengutronix.de>
To: Dan Murphy <dmurphy@ti.com>, Pankaj Sharma <pankj.sharma@samsung.com>,
 linux-can@vger.kernel.org, netdev@vger.kernel.org,
 linux-kernel@vger.kernel.org
Cc: wg@grandegger.com, davem@davemloft.net, rcsekar@samsung.com,
 pankaj.dubey@samsung.com
Message-ID: <a967e70e-456d-7855-6bb1-2e2285ce6f9b@pengutronix.de>
Subject: Re: [PATCH 0/2] can: m_can_platform: Bug fix of kernel panic for
References: <CGME20191119102134epcas5p4d3c1b18203e2001c189b9fa7a0e3aab5@epcas5p4.samsung.com>
 <1574158838-4616-1-git-send-email-pankj.sharma@samsung.com>
 <f0550b0b-6681-75a3-c58a-28f5b7ca0821@ti.com>
In-Reply-To: <f0550b0b-6681-75a3-c58a-28f5b7ca0821@ti.com>

--R6Lpc9rHMptUxg3wRCeFA8vNFLQfkt4PV
Content-Type: text/plain; charset=utf-8
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Content-Transfer-Encoding: quoted-printable

On 12/5/19 9:57 PM, Dan Murphy wrote:
> Pankaj
>=20
> On 11/19/19 4:20 AM, Pankaj Sharma wrote:
>> The current code is failing while clock prepare enable because of not
>> getting proper clock from platform device.
>> A device driver for CAN controller hardware registers itself with the
>> Linux network layer as a network device. So, the driver data for m_can=

>> should ideally be of type net_device.
>>
>> Further even when passing the proper net device in probe function the
>> code was hanging because of the function m_can_runtime_resume() gettin=
g
>> recursively called from m_can_class_resume().
>>
>> Pankaj Sharma (2):
>>    can: m_can_platform: set net_device structure as driver data
>>    can: m_can_platform: remove unnecessary m_can_class_resume() call
>=20
> Did you CC: linux-stable for these?=C2=A0 We are probably going to have=
=20
> customers picking up 5.4 LTS and would need these bug fixes.

Both patches made it into the v5.4 release. So no need for stable.

Marc

--=20
Pengutronix e.K.                 | Marc Kleine-Budde           |
Embedded Linux                   | https://www.pengutronix.de  |
Vertretung West/Dortmund         | Phone: +49-231-2826-924     |
Amtsgericht Hildesheim, HRA 2686 | Fax:   +49-5121-206917-5555 |


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