linux-kernel - [PATCH 1/2] objtool: Add vpanic() to the noreturn list

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Message-Id: <073f826ebec18b2bb59cba88606cd865d8039fd2.1752232374.git.namcao@linutronix.de>
Date: Fri, 11 Jul 2025 13:20:42 +0200
From: Nam Cao <namcao@...utronix.de>
To: Steven Rostedt <rostedt@...dmis.org>,
	John Ogness <john.ogness@...utronix.de>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Gabriele Monaco <gmonaco@...hat.com>,
	linux-trace-kernel@...r.kernel.org,
	Josh Poimboeuf <jpoimboe@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Petr Mladek <pmladek@...e.com>,
	linux-kernel@...r.kernel.org
Cc: Nam Cao <namcao@...utronix.de>,
	kernel test robot <lkp@...el.com>
Subject: [PATCH 1/2] objtool: Add vpanic() to the noreturn list

vpanic() does not return. However, objtool doesn't know this and gets
confused:
kernel/trace/rv/reactor_panic.o: warning: objtool: rv_panic_reaction(): unexpected end of section .text

Add vpanic() to the list of noreturn functions.

Reported-by: kernel test robot <lkp@...el.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202507110826.2ekbVdWZ-lkp@intel.com/
Signed-off-by: Nam Cao <namcao@...utronix.de>
---
 tools/objtool/noreturns.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/objtool/noreturns.h b/tools/objtool/noreturns.h
index eacfe3b0a8d1..6a922d046b8e 100644
--- a/tools/objtool/noreturns.h
+++ b/tools/objtool/noreturns.h
@@ -38,6 +38,7 @@ NORETURN(mpt_halt_firmware)
 NORETURN(mwait_play_dead)
 NORETURN(nmi_panic_self_stop)
 NORETURN(panic)
+NORETURN(vpanic)
 NORETURN(panic_smp_self_stop)
 NORETURN(rest_init)
 NORETURN(rewind_stack_and_make_dead)
-- 
2.39.5