FAILED: patch "[PATCH] nvme: fix the definition of the doorbell buffer config" failed to apply to 4.12-stable tree

[<gregkh@linuxfoundation.org>]

The patch below does not apply to the 4.12-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

>From 223694b9ae8bfba99f3528d49d07a740af6ff95a Mon Sep 17 00:00:00 2001
From: Changpeng Liu <changpeng.liu@intel.com>
Date: Thu, 31 Aug 2017 11:22:49 +0800
Subject: [PATCH] nvme: fix the definition of the doorbell buffer config
 support bit

NVMe 1.3 specification defines the Optional Admin Command Support feature
flags, bit 8 set to '1' then the controller supports the Doorbell Buffer
Config command. Bit 7 is used for Virtualization Mangement command.

Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Fixes: f9f38e33 ("nvme: improve performance for virtual NVMe devices")
Cc: stable@vger.kernel.org

diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index 25d8225dbd04..8efff888bd9b 100644
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -254,7 +254,7 @@ enum {
 	NVME_CTRL_VWC_PRESENT			= 1 << 0,
 	NVME_CTRL_OACS_SEC_SUPP                 = 1 << 0,
 	NVME_CTRL_OACS_DIRECTIVES		= 1 << 5,
-	NVME_CTRL_OACS_DBBUF_SUPP		= 1 << 7,
+	NVME_CTRL_OACS_DBBUF_SUPP		= 1 << 8,
 };
 
 struct nvme_lbaf {