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:

quoted

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

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