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Subject[PATCH] docs: kbuild: add INSTALL_DTBS_PATH
Date
The documentation for kbuild and makefiles is missing an explanation of
a variable important for some architectures.

Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
---
Documentation/kbuild/kbuild.rst | 6 ++++++
Documentation/kbuild/makefiles.rst | 7 +++++++
2 files changed, 13 insertions(+)

diff --git a/Documentation/kbuild/kbuild.rst b/Documentation/kbuild/kbuild.rst
index bd906407e307..9c8d1d046ea5 100644
--- a/Documentation/kbuild/kbuild.rst
+++ b/Documentation/kbuild/kbuild.rst
@@ -243,6 +243,12 @@ The output directory is often set using "O=..." on the commandline.

The value can be overridden in which case the default value is ignored.

+INSTALL_DTBS_PATH
+-----------------
+INSTALL_DTBS_PATH specifies where to install device tree blobs for
+relocations required by build roots. This is not defined in the
+makefile but the argument can be passed to make if needed.
+
KBUILD_ABS_SRCTREE
--------------------------------------------------
Kbuild uses a relative path to point to the tree when possible. For instance,
diff --git a/Documentation/kbuild/makefiles.rst b/Documentation/kbuild/makefiles.rst
index e67eb261c9b0..d88d4f0f4f89 100644
--- a/Documentation/kbuild/makefiles.rst
+++ b/Documentation/kbuild/makefiles.rst
@@ -1623,6 +1623,13 @@ INSTALL_MOD_STRIP
INSTALL_MOD_STRIP value will be used as the option(s) to the strip
command.

+INSTALL_DTBS_PATH
+ This variable specifies a prefix for relocations required by build
+ roots. It defines a place for installing the device tree blobs. Like
+ INSTALL_MOD_PATH, it isn't defined in the Makefile, but can be passed
+ by the user if desired. Otherwise it defaults to the kernel install
+ path.
+
Makefile language
=================

--
2.42.0
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