[PATCH v2 2/4] Documentation/printf: struct resource add start == end special case

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The code when printing a struct resource will check for start == end and
only print the start value.

Document this special case.

Suggested-by: Petr Mladek <pmladek@xxxxxxxx>
Signed-off-by: Ira Weiny <ira.weiny@xxxxxxxxx>
---
 Documentation/core-api/printk-formats.rst | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Documentation/core-api/printk-formats.rst b/Documentation/core-api/printk-formats.rst
index 14e093da3ccd..552f51046cf3 100644
--- a/Documentation/core-api/printk-formats.rst
+++ b/Documentation/core-api/printk-formats.rst
@@ -209,12 +209,17 @@ Struct Resources
 ::
 
 	%pr	[mem 0x60000000-0x6fffffff flags 0x2200] or
+		[mem 0x60000000 flags 0x2200] or
 		[mem 0x0000000060000000-0x000000006fffffff flags 0x2200]
+		[mem 0x0000000060000000 flags 0x2200]
 	%pR	[mem 0x60000000-0x6fffffff pref] or
+		[mem 0x60000000 pref] or
 		[mem 0x0000000060000000-0x000000006fffffff pref]
+		[mem 0x0000000060000000 pref]
 
 For printing struct resources. The ``R`` and ``r`` specifiers result in a
-printed resource with (R) or without (r) a decoded flags member.
+printed resource with (R) or without (r) a decoded flags member.  If start is
+equal to end only print the start value.
 
 Passed by reference.
 

-- 
2.47.0





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