[PATCH 21/21] powerpc: Add missing prototypes in setup_32.c

This commit add the prototypes for the following function:

- early_init
- machine_init
- ppc_setup_l2cr
- ppc_setup_l3cr
- ppc_init

the other missing ones were already added in setup.h previously. Fix the
following warnings (treated as error in W=1):

  AR      init/built-in.o
arch/powerpc/kernel/setup_32.c:68:30: error: no previous prototype for ‘early_init’ [-Werror=missing-prototypes]
 notrace unsigned long __init early_init(unsigned long dt_ptr)
                              ^~~~~~~~~~
arch/powerpc/kernel/setup_32.c:99:21: error: no previous prototype for ‘machine_init’ [-Werror=missing-prototypes]
 notrace void __init machine_init(u64 dt_ptr)
                     ^~~~~~~~~~~~
arch/powerpc/kernel/setup_32.c:124:12: error: no previous prototype for ‘ppc_setup_l2cr’ [-Werror=missing-prototypes]
 int __init ppc_setup_l2cr(char *str)
            ^~~~~~~~~~~~~~
arch/powerpc/kernel/setup_32.c:137:12: error: no previous prototype for ‘ppc_setup_l3cr’ [-Werror=missing-prototypes]
 int __init ppc_setup_l3cr(char *str)
            ^~~~~~~~~~~~~~
arch/powerpc/kernel/setup_32.c:183:12: error: no previous prototype for ‘ppc_init’ [-Werror=missing-prototypes]
 int __init ppc_init(void)
            ^~~~~~~~
arch/powerpc/kernel/setup_32.c:198:13: error: no previous prototype for ‘irqstack_early_init’ [-Werror=missing-prototypes]
 void __init irqstack_early_init(void)
             ^~~~~~~~~~~~~~~~~~~
arch/powerpc/kernel/setup_32.c:238:13: error: no previous prototype for ‘setup_power_save’ [-Werror=missing-prototypes]
 void __init setup_power_save(void)
             ^~~~~~~~~~~~~~~~
arch/powerpc/kernel/setup_32.c:253:13: error: no previous prototype for ‘initialize_cache_info’ [-Werror=missing-prototypes]
 __init void initialize_cache_info(void)
             ^~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

Signed-off-by: Mathieu Malaterre <redacted>
---
 arch/powerpc/kernel/setup.h    | 5 +++++
 arch/powerpc/kernel/setup_32.c | 2 ++
 2 files changed, 7 insertions(+)

diff --git a/arch/powerpc/kernel/setup.h b/arch/powerpc/kernel/setup.h
index 3fc11e30308f..d768023a04bd 100644
--- a/arch/powerpc/kernel/setup.h
+++ b/arch/powerpc/kernel/setup.h

@@ -17,6 +17,11 @@ void irqstack_early_init(void);
 
 #ifdef CONFIG_PPC32
 void setup_power_save(void);
+unsigned long __init early_init(unsigned long dt_ptr);
+void __init machine_init(u64 dt_ptr);
+int __init ppc_setup_l2cr(char *str);
+int __init ppc_setup_l3cr(char *str);
+int __init ppc_init(void);
 #else
 static inline void setup_power_save(void) { };
 #endif

diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index 51ebc01fff52..12bcab77a29f 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c

@@ -40,6 +40,8 @@
 #include <asm/code-patching.h>
 #include <asm/cpu_has_feature.h>
 
+#include "setup.h"
+
 #define DBG(fmt...)
 
 extern void bootx_init(unsigned long r4, unsigned long phys);

-- 
2.11.0