linux-kernel - [PATCH] objtool: Add a missing comma to avoid string concatenation

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Message-ID: <874k79sr8f.fsf_-_@email.froward.int.ebiederm.org>
Date:   Wed, 15 Dec 2021 11:38:40 -0600
From:   ebiederm@...ssion.com (Eric W. Biederman)
To:     Rong Chen <rong.a.chen@...el.com>
Cc:     kernel test robot <lkp@...el.com>, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] objtool: Add a missing comma to avoid string concatenation


Recently the kbuild robot reported two new errors:

>> lib/kunit/kunit-example-test.o: warning: objtool: .text.unlikely: unexpected end of section
>> arch/x86/kernel/dumpstack.o: warning: objtool: oops_end() falls through to next function show_opcodes()

I don't know why they did not occur in my test setup but after digging
it I realized I had accidentally dropped a comma in
tools/objtool/check.c when I renamed rewind_stack_do_exit to
rewind_stack_and_make_dead.

Add that comma back to fix objtool errors.

Link: https://lkml.kernel.org/r/202112140949.Uq5sFKR1-lkp@intel.com
Fixes: 0e25498f8cd4 ("exit: Add and use make_task_dead.")
Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@...ssion.com>
---

For the record this is my trivial objtool fix.

 tools/objtool/check.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 282273a1ffa5..3fc2c57f6124 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -177,7 +177,7 @@ static bool __dead_end_function(struct objtool_file *file, struct symbol *func,
 		"fortify_panic",
 		"usercopy_abort",
 		"machine_real_restart",
-		"rewind_stack_and_make_dead"
+		"rewind_stack_and_make_dead",
 		"kunit_try_catch_throw",
 		"xen_start_kernel",
 		"cpu_bringup_and_idle",
-- 
2.29.2