lightnvm: pblk: check for supported version

Javier González · axboe · commit 7ad5039ee557 · 2018-03-29T17:29:09.000-06:00
At this point, only 1.2 spec is supported, thus check for it. Also,
since device-side L2P is only supported in the 1.2 spec, make sure to
only check its value under 1.2.

Signed-off-by: Javier González &lt;javier@cnexlabs.com&gt;
Signed-off-by: Matias Bjørling &lt;mb@lightnvm.io&gt;
Signed-off-by: Jens Axboe &lt;axboe@kernel.dk&gt;
diff --git a/drivers/lightnvm/pblk-init.c b/drivers/lightnvm/pblk-init.c
@@ -1016,9 +1016,15 @@ static void *pblk_init(struct nvm_tgt_dev *dev, struct gendisk *tdisk,
 	struct pblk *pblk;
 	int ret;
 
-	if (dev->geo.dom & NVM_RSP_L2P) {
+	if (geo->version != NVM_OCSSD_SPEC_12) {
+		pr_err("pblk: OCSSD version not supported (%u)\n",
+							geo->version);
+		return ERR_PTR(-EINVAL);
+	}
+
+	if (geo->version == NVM_OCSSD_SPEC_12 && geo->dom & NVM_RSP_L2P) {
 		pr_err("pblk: host-side L2P table not supported. (%x)\n",
-							dev->geo.dom);
+							geo->dom);
 		return ERR_PTR(-EINVAL);
 	}
 
