On Wed, Aug 26, 2020 at 10:06:51AM +0800, Xianting Tian wrote: > Replace various magic -1 constants for tags with BLK_MQ_NO_TAG. > And move the definition of BLK_MQ_NO_TAG from 'block/blk-mq-tag.h' > to 'include/linux/blk-mq.h' All three symbols are supposed for block core internal code only, so looks you shouldn't move them to public header. Thanks, Ming