netdev - Re: can: About Socket CAN with MSI issue

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Message-ID: <4CC7D566.7090707@grandegger.com>
Date:	Wed, 27 Oct 2010 09:31:50 +0200
From:	Wolfgang Grandegger <wg@...ndegger.com>
To:	Tomoya MORINAGA <tomoya-linux@....okisemi.com>
CC:	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	socketcan-core@...ts.berlios.de, sameo@...ux.intel.com,
	21cnbao@...il.com, chripell@...e.org, w.sang@...gutronix.de,
	andrew.chih.howe.khor@...el.com, qi.wang@...el.com,
	margie.foster@...el.com, yong.y.wang@...el.com,
	kok.howg.ewe@...el.com, David Miller <davem@...emloft.net>,
	joel.clark@...el.com
Subject: Re: can: About Socket CAN with MSI issue

On 10/27/2010 06:29 AM, Tomoya MORINAGA wrote:
> We have faced issue when our CAN diriver whose MSI is enabled, after installing the driver,
> once remove the driver and install the driver again,
> As a result, interupt handler of the driver is not called again.
> 
> Do you have any information or suggestion about the above issue?

Not really, the remove functions looks ok, apart from the fact, that
pch_can_reset() is called *after* pci_iounmap().

Wolfgang.
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