netdev - Re: can: c_can: Reduce interrupt load by 50%

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Message-ID: <1395174900.2812.87.camel@joe-AO722>
Date:	Tue, 18 Mar 2014 13:35:00 -0700
From:	Joe Perches <joe@...ches.com>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Wolfgang Grandegger <wg@...ndegger.com>,
	Marc Kleine-Budde <mkl@...gutronix.de>,
	Markus Pargmann <mpa@...gutronix.de>,
	Benedikt Spranger <b.spranger@...utronix.de>,
	linux-can@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: can: c_can: Reduce interrupt load by 50%

On Tue, 2014-03-18 at 21:18 +0100, Thomas Gleixner wrote:
> The driver handles pointlessly TWO interrupts per packet. The reason
> is that it enables the status interrupt which fires for each rx and tx
> packet and it enables the per message object interrupts as well.

Are the message object interrupts a possible workaround
for any defective hardware?

> performance improment

Now that the code's not being written by amateurs?



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