Re: linux-next: Tree for May 17 (drivers/nvme/host/fc.o)

[Christoph Hellwig]

The patch that adds nvme_fc_io_getuuid need something like this
folded in:

diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index a11c69e681180..3c778bb0c2944 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);