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Message-ID: <alpine.DEB.2.02.1403182142390.18573@ionos.tec.linutronix.de>
Date: Tue, 18 Mar 2014 21:43:39 +0100 (CET)
From: Thomas Gleixner <tglx@...utronix.de>
To: Joe Perches <joe@...ches.com>
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, 18 Mar 2014, Joe Perches wrote:
> 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?
Nope. I already explained what they are for, but you snipped that
part.
> > performance improment
>
> Now that the code's not being written by amateurs?
You found a typo. Great, you can keep it!
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