linux-kernel - [PATCH] nvme: lightnvme: make MLC num

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Message-Id: <1464957858-59392-1-git-send-email-jthumshirn@suse.de>
Date:	Fri,  3 Jun 2016 14:44:18 +0200
From:	Johannes Thumshirn <jthumshirn@...e.de>
To:	Jens Axboe <axboe@...com>
Cc:	Keith Busch <keith.busch@...el.com>,
	linux-nvme@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Matias Bjørling <m@...rling.me>,
	Johannes Thumshirn <jthumshirn@...e.de>
Subject: [PATCH] nvme: lightnvme: make MLC num_pairs little endian

According to the OpenChannel SSD interface specification the NAND flash
MLC page pairing information's number of page page pairings field is the
first two bytes in the MLC Page Pairing data structure. The hardware's
data structure itself is little endian so annotate it as such, like the
rest of lighnvm's data structures.

Signed-off-by: Johannes Thumshirn <jthumshirn@...e.de>
---
 drivers/nvme/host/lightnvm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvme/host/lightnvm.c b/drivers/nvme/host/lightnvm.c
index 9461dd6..ea36cbb 100644
--- a/drivers/nvme/host/lightnvm.c
+++ b/drivers/nvme/host/lightnvm.c
@@ -156,7 +156,7 @@ struct nvme_nvm_completion {
 
 #define NVME_NVM_LP_MLC_PAIRS 886
 struct nvme_nvm_lp_mlc {
-	__u16			num_pairs;
+	__le16			num_pairs;
 	__u8			pairs[NVME_NVM_LP_MLC_PAIRS];
 };
 
-- 
1.8.5.6