objtool, kcsan: Add memory barrier instrumentation to whitelist

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

Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 2173582..61dfb66 100644 (file)
--- 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",