memset(senses, 1, max - off); 
memset(senses, IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE, max - off); 
void __init prom_get_irq_senses(unsigned char *senses, int off, int max){	struct device_node *np;	int i, j;	/* default to level-triggered */	memset(senses, 1, max - off);	for (np = allnodes; np != 0; np = np->allnext) {		for (j = 0; j < np->n_intrs; j++) {			i = np->intrs[j].line;			if (i >= off && i < max)				senses[i-off] = np->intrs[j].sense ?					IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE :					IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE;		}	}}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/6d0124fc06be40deafca043c73a8203c78bbfe45/prom.c/buggy/arch/powerpc/kernel/prom.c