On 2/26/21 1:31 PM, Torin Cooper-Bennun wrote: > On Fri, Feb 26, 2021 at 01:22:59PM +0100, Marc Kleine-Budde wrote: >> The problem is that netif_receive_skb(skb) is called from a threaded interrupt >> handler, but you should call it from NAPI. > > Ah, I was sure it was in fact called from NAPI, but that's only if > is_peripheral is false. It should be as simple as getting rid of this > switch, then, no? > > https://elixir.bootlin.com/linux/latest/source/drivers/net/can/m_can/m_can.c#L966 I think you cannot do (synchronous) SPI from NAPI (which is SoftIRQ context). regards, Marc -- Pengutronix e.K. | Marc Kleine-Budde | Embedded Linux | https://www.pengutronix.de | Vertretung West/Dortmund | Phone: +49-231-2826-924 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
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