linux-kernel - [PATCH v5 4/4] block: add new genhd flag GENHD_FL

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Message-ID: <311ea569c23ce14e2896cd3b069dc494c58c49c2.1722365899.git.daniel@makrotopia.org>
Date: Tue, 30 Jul 2024 20:27:07 +0100
From: Daniel Golle <daniel@...rotopia.org>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Jens Axboe <axboe@...nel.dk>,
	Daniel Golle <daniel@...rotopia.org>,
	Christian Brauner <brauner@...nel.org>,
	Al Viro <viro@...iv.linux.org.uk>,
	Li Lingfeng <lilingfeng3@...wei.com>,
	Ming Lei <ming.lei@...hat.com>,
	Christian Heusel <christian@...sel.eu>,
	Rafał Miłecki <rafal@...ecki.pl>,
	Felix Fietkau <nbd@....name>, John Crispin <john@...ozen.org>,
	Chad Monroe <chad.monroe@...ran.com>,
	Yangyu Chen <cyy@...self.name>,
	Tianling Shen <cnsztl@...ortalwrt.org>,
	Chuanhong Guo <gch981213@...il.com>,
	Chen Minqiang <ptpt52@...il.com>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-block@...r.kernel.org
Subject: [PATCH v5 4/4] block: add new genhd flag GENHD_FL_NVMEM

Add new flag to destinguish block devices which may act as an NVMEM
provider.

Signed-off-by: Daniel Golle <daniel@...rotopia.org>
---
 include/linux/blkdev.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 2f871158d2860..cab689851211b 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -81,11 +81,13 @@ struct partition_meta_info {
  * ``GENHD_FL_NO_PART``: partition support is disabled.  The kernel will not
  * scan for partitions from add_disk, and users can't add partitions manually.
  *
+ * ``GENHD_FL_NVMEM``: the block device should be considered as NVMEM provider.
  */
 enum {
 	GENHD_FL_REMOVABLE			= 1 << 0,
 	GENHD_FL_HIDDEN				= 1 << 1,
 	GENHD_FL_NO_PART			= 1 << 2,
+	GENHD_FL_NVMEM				= 1 << 3,
 };
 
 enum {
-- 
2.45.2