[PATCH] Documentation: state: recommend a partition type GUID for state GPT partitions

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The partition type GUID was generated randomly. Having a defined GUID
should reduce the risk of collisions in the future.

A dedicated GUID could also allow us to implement a fallback in case no
state backend property is defined. This could then look for a GPT
partition with this partition type GUID and use that as the backend.
dt-utils could do the same in userspace. This would be similar to [1].

[1] https://www.freedesktop.org/wiki/Specifications/DiscoverablePartitionsSpec/

Signed-off-by: Bastian Krause <bst@xxxxxxxxxxxxxx>
---
 Documentation/user/state.rst | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/user/state.rst b/Documentation/user/state.rst
index 54aa396257..a0e27d4fe8 100644
--- a/Documentation/user/state.rst
+++ b/Documentation/user/state.rst
@@ -579,6 +579,9 @@ content, its backend-type and *state* variable layout.
 		};
 	};
 
+If the *state* variable set is set to be located in a GPT partition, use
+``4778ed65-bf42-45fa-9c5b-287a1dc4aab1`` as the partition type GUID.
+
 SRAM
 ####
 
-- 
2.30.0


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