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authorBart Van Assche <bart.vanassche@sandisk.com>2016-04-22 14:13:09 -0700
committerDoug Ledford <dledford@redhat.com>2016-05-12 14:18:55 -0400
commit77269cdfcab5f01ebd2095273f4060fbe1001e68 (patch)
treed04aae1ead211671d945a5d32893226514dc6a96
parent6ec2ba02e6b7fc4fcf8032bfd2bc6e6e20ca9c4a (diff)
IB/srp: Document srp_map_data() return value
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Sagi Grimberg <sagig@mellanox.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Laurence Oberman <loberman@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Doug Ledford <dledford@redhat.com>
-rw-r--r--drivers/infiniband/ulp/srp/ib_srp.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 8c0827a11ece..269f5ebe82de 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -1534,6 +1534,15 @@ static int srp_map_idb(struct srp_rdma_ch *ch, struct srp_request *req,
return 0;
}
+/**
+ * srp_map_data() - map SCSI data buffer onto an SRP request
+ * @scmnd: SCSI command to map
+ * @ch: SRP RDMA channel
+ * @req: SRP request
+ *
+ * Returns the length in bytes of the SRP_CMD IU or a negative value if
+ * mapping failed.
+ */
static int srp_map_data(struct scsi_cmnd *scmnd, struct srp_rdma_ch *ch,
struct srp_request *req)
{