45 void irq_install_handler (int vec, interrupt_handler_t * handler, void *arg)  in irq_install_handler()  argument
47 	if ((vec < 0) || (vec >= NR_IRQS)) {  in irq_install_handler()
49 			vec);  in irq_install_handler()
53 	irq_vecs[vec].handler = handler;  in irq_install_handler()
54 	irq_vecs[vec].arg = arg;  in irq_install_handler()
57 void irq_free_handler (int vec)  in irq_free_handler()  argument
59 	if ((vec < 0) || (vec >= NR_IRQS)) {  in irq_free_handler()
63 	irq_vecs[vec].handler = NULL;  in irq_free_handler()
64 	irq_vecs[vec].arg = NULL;  in irq_free_handler()
87 	int vec;  in int_handler()  local
89 	vec = (fp->vector >> 2) & 0xff;  in int_handler()
90 	if (vec > 0x40)  in int_handler()
91 		vec -= 0x40;  in int_handler()
93 	if (irq_vecs[vec].handler != NULL) {  in int_handler()
94 		irq_vecs[vec].handler (irq_vecs[vec].arg);  in int_handler()
96 		printf ("\nBogus External Interrupt Vector %d\n", vec);  in int_handler()