REG_BYTES_PER_IRQ_WORD  248 drivers/irqchip/irq-bcm6345-l1.c 	n_words = sz / REG_BYTES_PER_IRQ_WORD;
REG_BYTES_PER_IRQ_WORD  256 drivers/irqchip/irq-bcm7038-l1.c 	n_words = sz / REG_BYTES_PER_IRQ_WORD;