tag	line	file	source code
CONFIG_BLK_DEV_SR	31	fs/buffer.c	#ifdef CONFIG_BLK_DEV_SR
CONFIG_BLK_DEV_SR	152	fs/buffer.c	#if defined(CONFIG_BLK_DEV_SR) && defined(CONFIG_SCSI)
CONFIG_BLK_DEV_SR	157	kernel/blk_drv/scsi/hosts.c	#ifndef CONFIG_BLK_DEV_SR