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    Subject[PATCH AUTOSEL 5.3 019/292] objtool: add kunit_try_catch_throw to the noreturn list
    Date
    From: Brendan Higgins <brendanhiggins@google.com>

    [ Upstream commit 33adf80f5b52e3f7c55ad66ffcaaff93c6888aaa ]

    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@intel.com>
    Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
    Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
    Link: https://www.spinics.net/lists/linux-kbuild/msg21708.html
    Cc: Peter Zijlstra <peterz@infradead.org>
    Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    tools/objtool/check.c | 1 +
    1 file changed, 1 insertion(+)

    diff --git a/tools/objtool/check.c b/tools/objtool/check.c
    index 176f2f0840609..0c8e17f946cda 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,
    "usercopy_abort",
    "machine_real_restart",
    "rewind_stack_do_exit",
    + "kunit_try_catch_throw",
    };

    if (!func)
    --
    2.20.1
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