[PATCH AUTOSEL 4.19 32/53] objtool: Add rewind_stack_do_exit() to the noreturn list

From: Sasha Levin
Date: Fri Apr 26 2019 - 21:50:12 EST


From: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>

[ Upstream commit 4fa5ecda2bf96be7464eb406df8aba9d89260227 ]

This fixes the following warning seen on GCC 7.3:

arch/x86/kernel/dumpstack.o: warning: objtool: oops_end() falls through to next function show_regs()

Reported-by: kbuild test robot <lkp@xxxxxxxxx>
Signed-off-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Link: https://lkml.kernel.org/r/3418ebf5a5a9f6ed7e80954c741c0b904b67b5dc.1554398240.git.jpoimboe@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
tools/objtool/check.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 550f17611bd7..ef152daccc33 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -165,6 +165,7 @@ static int __dead_end_function(struct objtool_file *file, struct symbol *func,
"fortify_panic",
"usercopy_abort",
"machine_real_restart",
+ "rewind_stack_do_exit",
};

if (func->bind == STB_WEAK)
--
2.19.1