[PATCH 2/3] kcsan: Remove __no_kcsan_or_inline

From: Peter Zijlstra
Date: Tue Jun 02 2020 - 13:34:53 EST


There are no more user of this function attribute, also, with us now
actively supporting '__no_kcsan inline' it doesn't make sense to have
in any case.

Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
---
Documentation/dev-tools/kcsan.rst | 6 ------
include/linux/compiler_types.h | 5 +----
2 files changed, 1 insertion(+), 10 deletions(-)

--- a/Documentation/dev-tools/kcsan.rst
+++ b/Documentation/dev-tools/kcsan.rst
@@ -114,12 +114,6 @@ functions, compilation units, or entire
To dynamically limit for which functions to generate reports, see the
`DebugFS interface`_ blacklist/whitelist feature.

- For ``__always_inline`` functions, replace ``__always_inline`` with
- ``__no_kcsan_or_inline`` (which implies ``__always_inline``)::
-
- static __no_kcsan_or_inline void foo(void) {
- ...
-
* To disable data race detection for a particular compilation unit, add to the
``Makefile``::

--- a/include/linux/compiler_types.h
+++ b/include/linux/compiler_types.h
@@ -193,10 +193,7 @@ struct ftrace_likely_data {

#define __no_kcsan __no_sanitize_thread
#ifdef __SANITIZE_THREAD__
-# define __no_kcsan_or_inline __no_kcsan notrace __maybe_unused
-# define __no_sanitize_or_inline __no_kcsan_or_inline
-#else
-# define __no_kcsan_or_inline __always_inline
+# define __no_sanitize_or_inline __no_kcsan notrace __maybe_unused
#endif

#ifndef __no_sanitize_or_inline