[PATCH 1/1 fyi] tools headers: Syncronize linux/build_bug.h with the kernel sources

From: Arnaldo Carvalho de Melo

Date: Wed Mar 18 2026 - 14:41:42 EST


tldr; Just FYI, I'm carrying this on the perf tools tree.

Full explanation:

There used to be no copies, with tools/ code using kernel headers
directly. From time to time tools/perf/ broke due to legitimate kernel
hacking. At some point Linus complained about such direct usage. Then we
adopted the current model.

See further details at:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/tools/include/uapi/README

To pick up the changes in:

6ffd853b0b10e1e2 ("build_bug.h: correct function parameters names in kernel-doc")

That just add some comments, addressing this perf tools build warning:

Warning: Kernel ABI header differences:
diff -u tools/include/linux/build_bug.h include/linux/build_bug.h

Please take a look at tools/include/uapi/README for further info on this
synchronization process.

Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
include/linux/build_bug.h | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/include/linux/build_bug.h b/include/linux/build_bug.h
index d3dc5dc5f916ff4e..2cfbb4c65c784ad8 100644
--- a/include/linux/build_bug.h
+++ b/include/linux/build_bug.h
@@ -32,8 +32,7 @@
/**
* BUILD_BUG_ON_MSG - break compile if a condition is true & emit supplied
* error message.
- * @cond: the condition which the compiler should know is false.
- * @msg: build-time error message
+ * @condition: the condition which the compiler should know is false.
*
* See BUILD_BUG_ON for description.
*/
@@ -61,7 +60,6 @@

/**
* static_assert - check integer constant expression at build time
- * @expr: expression to be checked
*
* static_assert() is a wrapper for the C11 _Static_assert, with a
* little macro magic to make the message optional (defaulting to the
--
2.53.0