From: Marco Elver <elver@google.com>
Date: Fri, 24 Jul 2020 07:00:02 +0000 (+0200)
Subject: objtool, kcsan: Add __tsan_read_write to uaccess whitelist
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=a81b37590ff2e2507940ec278910b1d315dc73b3;p=linux.git

objtool, kcsan: Add __tsan_read_write to uaccess whitelist

Adds the new __tsan_read_write compound instrumentation to objtool's
uaccess whitelist.

Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
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 7546a9d4e3cf3..5eee156f6f903 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -528,6 +528,11 @@ static const char *uaccess_safe_builtin[] = {
 	"__tsan_write4",
 	"__tsan_write8",
 	"__tsan_write16",
+	"__tsan_read_write1",
+	"__tsan_read_write2",
+	"__tsan_read_write4",
+	"__tsan_read_write8",
+	"__tsan_read_write16",
 	"__tsan_atomic8_load",
 	"__tsan_atomic16_load",
 	"__tsan_atomic32_load",