On 09-09-2021 21:46, Chaitanya Kulkarni wrote:

quoted

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 ?

Thanks Chaitanya for your response. Please check my response to Christoph.
That should give overall understanding of the use-case.

Regards,

~Praveen.