can-utils/candump.c:
	while (running) {
				nbytes = recvmsg(s[i], &msg, 0);

socketcan/net/can/raw.c:
	skb = skb_recv_datagram(sk, flags, noblock, &err);

socketcan/net/can/af_can.c:
	can_r*()


drivers/net/can/flexcan/drv.c:
	static int flexcan_open(struct net_device *dev):
			if (request_irq(flexcan->irq, flexcan_irq_handler, IRQF_SHARED, dev->name, dev))
	static irqreturn_t flexcan_irq_handler(int irq, void *data):
		flexcan_mbm_isr(dev);

drivers/net/can/flexcan/mbm.c:
	void flexcan_mbm_isr(struct net_device *dev)
		__raw_readl() / __raw_writel()