SG_MAGIC 67 include/linux/scatterlist.h BUG_ON(sg->sg_magic != SG_MAGIC); SG_MAGIC 98 include/linux/scatterlist.h BUG_ON(sg->sg_magic != SG_MAGIC); SG_MAGIC 168 include/linux/scatterlist.h BUG_ON(sg->sg_magic != SG_MAGIC); SG_MAGIC 188 include/linux/scatterlist.h BUG_ON(sg->sg_magic != SG_MAGIC);