linux-kernel - [PATCH v4 2/5] docs: block: Document support for read-only partition in cmdline part

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Message-ID: <20240930113045.28616-3-ansuelsmth@gmail.com>
Date: Mon, 30 Sep 2024 13:30:09 +0200
From: Christian Marangi <ansuelsmth@...il.com>
To: Jens Axboe <axboe@...nel.dk>,
	Jonathan Corbet <corbet@....net>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Kees Cook <kees@...nel.org>,
	Andy Shevchenko <andy@...nel.org>,
	Christian Marangi <ansuelsmth@...il.com>,
	Daniel Golle <daniel@...rotopia.org>,
	INAGAKI Hiroshi <musashino.open@...il.com>,
	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>,
	linux-block@...r.kernel.org,
	linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-mmc@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-hardening@...r.kernel.org,
	Miquel Raynal <miquel.raynal@...tlin.com>,
	Lorenzo Bianconi <lorenzo@...nel.org>,
	upstream@...oha.com
Subject: [PATCH v4 2/5] docs: block: Document support for read-only partition in cmdline part

Document support for read-only partition in cmdline partition for block
devices by appending "ro" after the (partition name).

Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
---
 Documentation/block/cmdline-partition.rst | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Documentation/block/cmdline-partition.rst b/Documentation/block/cmdline-partition.rst
index 530bedff548a..526ba201dddc 100644
--- a/Documentation/block/cmdline-partition.rst
+++ b/Documentation/block/cmdline-partition.rst
@@ -39,13 +39,16 @@ blkdevparts=<blkdev-def>[;<blkdev-def>]
     create a link to block device partition with the name "PARTNAME".
     User space application can access partition by partition name.
 
+ro
+    read-only. Flag the partition as read-only.
+
 Example:
 
     eMMC disk names are "mmcblk0" and "mmcblk0boot0".
 
   bootargs::
 
-    'blkdevparts=mmcblk0:1G(data0),1G(data1),-;mmcblk0boot0:1m(boot),-(kernel)'
+    'blkdevparts=mmcblk0:1G(data0),1G(data1),-;mmcblk0boot0:1m(boot)ro,-(kernel)'
 
   dmesg::
 
-- 
2.45.2