objtool: Add machine_real_restart() to the noreturn list

machine_real_restart() is annotated as '__noreturn", so add it to the objtool noreturn list. This fixes the following warning with clang and CONFIG_CC_OPTIMIZE_FOR_SIZE=y: arch/x86/kernel/reboot.o: warning: objtool: native_machine_emergency_restart() falls through to next function machine_power_off() Reported-by: Matthias Kaehlcke <[email protected]> Signed-off-by: Josh Poimboeuf <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Tested-by: Matthias Kaehlcke <[email protected]> Reviewed-by: Matthias Kaehlcke <[email protected]> Link: https://lkml.kernel.org/r/791712792aa4431bdd55bf1beb33a169ddf3b4a2.1529423255.git.jpoimboe@redhat.com
ambv · Jun 20, 2018 · 684fb24 · 684fb24
1 parent 9ffc59d
commit 684fb24
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
@@ -164,6 +164,7 @@ static int __dead_end_function(struct objtool_file *file, struct symbol *func,
 		"lbug_with_loc",
 		"fortify_panic",
 		"usercopy_abort",
+		"machine_real_restart",
 	};
 
 	if (func->bind == STB_WEAK)