From: Javier González <javier@cnexlabs.com>
Date: Thu, 29 Mar 2018 22:05:18 +0000 (+0200)
Subject: lightnvm: pblk: check for supported version
X-Git-Tag: for-4.17/block-20180402~8
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=7ad5039ee557f0a427a0768e43c28d0236d56ba3;p=linux-block.git

lightnvm: pblk: check for supported version

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 <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/drivers/lightnvm/pblk-init.c b/drivers/lightnvm/pblk-init.c
index 4656d1ff81a6..34ff47705293 100644
--- 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);
 	}