From 3dff66ff8367cd4dabb6a34633e55324c281348a Mon Sep 17 00:00:00 2001 From: Ira Weiny Date: Fri, 25 Oct 2024 19:46:54 -0500 Subject: [PATCH] Documentation/printf: struct resource add start == end special case 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 Signed-off-by: Ira Weiny Reviewed-by: Andy Shevchenko Link: https://patch.msgid.link/20241025-cxl-pra-v2-2-123a825daba2@intel.com Signed-off-by: Dave Jiang --- 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.