[PATCH v17 08/19] objtool: add kunit_try_catch_throw to the noreturn list

Brendan Higgins brendanhiggins at google.com
Sat Sep 21 00:18:44 UTC 2019

Fix the following warning seen on GCC 7.3:
  kunit/test-test.o: warning: objtool: kunit_test_unsuccessful_try() falls through to next function kunit_test_catch()

kunit_try_catch_throw is a function added in the following patch in this
series; it allows KUnit, a unit testing framework for the kernel, to
bail out of a broken test. As a consequence, it is a new __noreturn
function that objtool thinks is broken (as seen above). So fix this
warning by adding kunit_try_catch_throw to objtool's noreturn list.

Reported-by: kbuild test robot <lkp at intel.com>
Signed-off-by: Brendan Higgins <brendanhiggins at google.com>
Acked-by: Josh Poimboeuf <jpoimboe at redhat.com>
Link: https://www.spinics.net/lists/linux-kbuild/msg21708.html
Cc: Peter Zijlstra <peterz at infradead.org>
 tools/objtool/check.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 176f2f084060..0c8e17f946cd 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -145,6 +145,7 @@ static bool __dead_end_function(struct objtool_file *file, struct symbol *func,
+		"kunit_try_catch_throw",
 	if (!func)

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