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From:   paulmck@kernel.org
To:     linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com,
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Cc:     elver@google.com, andreyknvl@google.com, glider@google.com,
        dvyukov@google.com, cai@lca.pw, boqun.feng@gmail.com,
        Josh Poimboeuf <jpoimboe@redhat.com>,
        "Paul E . McKenney" <paulmck@kernel.org>
Subject: [PATCH kcsan 05/19] objtool, kcsan: Add __tsan_read_write to uaccess whitelist
Date:   Mon, 31 Aug 2020 11:17:51 -0700
Message-Id: <20200831181805.1833-5-paulmck@kernel.org>
In-Reply-To: <20200831181715.GA1530@paulmck-ThinkPad-P72>
References: <20200831181715.GA1530@paulmck-ThinkPad-P72>
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From: Marco Elver <elver@google.com>

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>
---
 tools/objtool/check.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 7546a9d..5eee156 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",
-- 
2.9.5