> diff --git a/block/blk-mq.c b/block/blk-mq.c > index 65d3a63aecc6..40a9b085f029 100644 > --- a/block/blk-mq.c > +++ b/block/blk-mq.c > @@ -2283,6 +2283,7 @@ blk_qc_t blk_mq_submit_bio(struct bio *bio) > blk_queue_exit(q); > return BLK_QC_T_NONE; > } > +EXPORT_SYMBOL_GPL(blk_mq_submit_bio); > Where is the code that used this API ? > static size_t order_to_size(unsigned int order) > { > -- > 2.25.1 >