[PATCH kcsan 22/29] objtool, kcsan: Add memory barrier instrumentation to whitelist

[Paul E. McKenney]

From: Marco Elver <elver@xxxxxxxxxx>

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

Signed-off-by: Marco Elver <elver@xxxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx>
---
 tools/objtool/check.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 21735829b860c..61dfb66b30b64 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -849,6 +849,10 @@ 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",
-- 
2.31.1.189.g2e36527f23