If BLK_CGROUP_FC_APPID is not configured the symbol blkcg_get_fc_appid()
is undefined, so it needs to be masked out.
This patch is just a diff to the v2 patchset, as the original version has
already been merged.
Fixes: 980a0e068d14 ("scsi: nvme-fc: Add new routine nvme_fc_io_getuuid()")
Cc: Muneendra <muneendra.kumar@xxxxxxxxxxxx>
Cc: James Smart <jsmart2021@xxxxxxxxx>
Signed-off-by: Hannes Reinecke <hare@xxxxxxx>
---
drivers/nvme/host/fc.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index a11c69e68118..3c778bb0c294 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -1911,7 +1911,9 @@ char *nvme_fc_io_getuuid(struct nvmefc_fcp_req *req)
struct nvme_fc_fcp_op *op = fcp_req_to_fcp_op(req);
struct request *rq = op->rq;
- return rq->bio ? blkcg_get_fc_appid(rq->bio) : NULL;
+ if (!IS_ENABLED(CONFIG_BLK_CGROUP_FC_APPID) || !rq->bio)
+ return NULL;
+ return blkcg_get_fc_appid(rq->bio);
}
EXPORT_SYMBOL_GPL(nvme_fc_io_getuuid);
--
2.29.2
