From patchwork Tue Jul 30 19:27:07 2024
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X-Patchwork-Submitter: Daniel Golle <daniel@makrotopia.org>
X-Patchwork-Id: 13747818
Date: Tue, 30 Jul 2024 20:27:07 +0100
From: Daniel Golle <daniel@makrotopia.org>
To: Rob Herring <robh@kernel.org>, Krzysztof Kozlowski <krzk+dt@kernel.org>,
 Conor Dooley <conor+dt@kernel.org>, Jens Axboe <axboe@kernel.dk>,
 Daniel Golle <daniel@makrotopia.org>, Christian Brauner <brauner@kernel.org>,
 Al Viro <viro@zeniv.linux.org.uk>, Li Lingfeng <lilingfeng3@huawei.com>,
 Ming Lei <ming.lei@redhat.com>, Christian Heusel <christian@heusel.eu>,
	=?utf-8?b?UmFmYcWCIE1pxYJlY2tp?= <rafal@milecki.pl>,
 Felix Fietkau <nbd@nbd.name>, John Crispin <john@phrozen.org>,
 Chad Monroe <chad.monroe@adtran.com>, Yangyu Chen <cyy@cyyself.name>,
 Tianling Shen <cnsztl@immortalwrt.org>, Chuanhong Guo <gch981213@gmail.com>,
 Chen Minqiang <ptpt52@gmail.com>, devicetree@vger.kernel.org,
 linux-kernel@vger.kernel.org, linux-block@vger.kernel.org
Subject: [PATCH v5 4/4] block: add new genhd flag GENHD_FL_NVMEM
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 <311ea569c23ce14e2896cd3b069dc494c58c49c2.1722365899.git.daniel@makrotopia.org>
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Add new flag to destinguish block devices which may act as an NVMEM
provider.

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

--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -80,11 +80,13 @@ 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 {