[PATCH -rcu/kcsan 22/23] objtool, kcsan: Add memory barrier instrumentation to whitelist

Marco Elver
2021-10-05T11:02:14Z

Adds KCSAN's memory barrier instrumentation to objtool's uaccess
whitelist.

Signed-off-by: Marco Elver <elver@google.com>
---
tools/objtool/check.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index e5947fbb9e7a..7e8cd3ba5482 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -651,6 +651,10 @@ static const char *uaccess_safe_builtin[] = {
"__asan_report_store16_noabort",
/* KCSAN */
"__kcsan_check_access",
+ "__kcsan_mb",
+ "__kcsan_wmb",
+ "__kcsan_rmb",
+ "__kcsan_release",
"kcsan_found_watchpoint",
"kcsan_setup_watchpoint",
"kcsan_check_scoped_accesses",
--
2.33.0.800.g4c38ced690-goog