netdev - Re: [PATCH 5/7] can: clear ctrlmode when close candev

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <5457E9DA.6090702@pengutronix.de>
Date:	Mon, 03 Nov 2014 21:47:22 +0100
From:	Marc Kleine-Budde <mkl@...gutronix.de>
To:	Dong Aisheng <b29396@...escale.com>, linux-can@...r.kernel.org
CC:	wg@...ndegger.com, varkabhadram@...il.com, netdev@...r.kernel.org,
	socketcan@...tkopp.net, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 5/7] can: clear ctrlmode when close candev

On 10/29/2014 11:45 AM, Dong Aisheng wrote:
> Currently priv->ctrlmode is not cleared when close_candev, so next time
> the driver will still use this value to set controller even user
> does not set any ctrl mode.
> e.g.
> Step 1. ip link set can0 up type can0 bitrate 1000000 loopback on
> Controller will be in loopback mode
> Step 2. ip link set can0 down
> Step 3. ip link set can0 up type can0 bitrate 1000000
> Controller will still be set to loopback mode in driver due to saved
> priv->ctrlmode.
> 
> This patch clears priv->ctrlmode when the CAN interface is closed,
> and set it to correct mode according to next user setting.
> 
> Signed-off-by: Dong Aisheng <b29396@...escale.com>

NACK, as discussed with Oliver.

Marc

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


Download attachment "signature.asc" of type "application/pgp-signature" (820 bytes)