static irqreturn_t netx5152_irq_handler()

in uio_fsl_elbc_gpcm.c [156:175]

• 15 lines of code
• 2 McCabe index (conditional complexity)

static irqreturn_t netx5152_irq_handler(int irq, struct uio_info *info)
{
	void __iomem *reg_int_en = info->mem[0].internal_addr +
					DPM_HOST_WIN0_OFFSET +
					DPM_HOST_INT_EN0;
	void __iomem *reg_int_stat = info->mem[0].internal_addr +
					DPM_HOST_WIN0_OFFSET +
					DPM_HOST_INT_STAT0;

	/* check if an interrupt is enabled and active */
	if ((ioread32(reg_int_en) & ioread32(reg_int_stat) &
	     DPM_HOST_INT_MASK) == 0) {
		return IRQ_NONE;
	}

	/* disable interrupts */
	iowrite32(ioread32(reg_int_en) & ~DPM_HOST_INT_GLOBAL_EN, reg_int_en);

	return IRQ_HANDLED;
}