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

[Marco Elver]

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

Signed-off-by: Marco Elver <elver@xxxxxxxxxx>
---
 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