From: =?UTF-8?q?Javier=20Gonz=C3=A1lez?= <javier@cnexlabs.com>
Date: Fri, 30 Mar 2018 00:05:18 +0200
Subject: [PATCH] lightnvm: pblk: check for supported version
Git-commit: 7ad5039ee557f0a427a0768e43c28d0236d56ba3
Patch-mainline: v4.17-rc1
References: bsc#1104967,FATE#325924
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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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>
Acked-by: Hannes Reinecke <hare@suse.com>
---
 drivers/lightnvm/pblk-init.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

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);
 	}
 
-- 
2.12.3