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-rw-r--r--Documentation/dontdiff1
-rw-r--r--Documentation/kbuild/makefiles.txt7
2 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/dontdiff b/Documentation/dontdiff
index 5eba889ea84d..554dfe4883d2 100644
--- a/Documentation/dontdiff
+++ b/Documentation/dontdiff
@@ -19,6 +19,7 @@
*.grep
*.grp
*.gz
+*.hdrtest.c
*.html
*.i
*.jpeg
diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index bac301a73a86..ca4b24ec0399 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -1018,6 +1018,13 @@ When kbuild executes, the following steps are followed (roughly):
In this example, extra-y is used to list object files that
shall be built, but shall not be linked as part of built-in.a.
+ header-test-y
+
+ header-test-y specifies headers (*.h) in the current directory that
+ should be compile tested to ensure they are self-contained,
+ i.e. compilable as standalone units. If CONFIG_HEADER_TEST is enabled,
+ this autogenerates dummy sources to include the headers, and builds them
+ as part of extra-y.
--- 6.7 Commands useful for building a boot image