On 02/18/2011 09:15 AM, Subhasish Ghosh wrote: >> On 02/18/2011 08:07 AM, Subhasish Ghosh wrote: >>> -------------------------------------------------- >>> From: "Kurt Van Dijck" >> >> ... >>>>> + /* register interrupt handler */ >>>>> + err = request_irq(priv->trx_irq, &omapl_rx_can_intr, IRQF_SHARED, >>>>> + "pru_can_irq", ndev); >>>> you're doing a lot of work _in_ the irq handler. Maybe threaded irq? >>>> >>> SG -Ok, will do >> >> No, please use NAPI instead. > > We are using h/w filters, so the number of interrupts coming into the > processor are not hogging it. > I feel that we may not require an interrupt mitigation. As davem stated the other day, all new drivers should use NAPI. regards, 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 |