g5_phy_disable_cpu1() is used outside of platforms/powermac/feature.c,
so it should have a declaration to fix W=1 warning:

  arch/powerpc/platforms/powermac/feature.c:1533:6:
    error: no previous prototype for ‘g5_phy_disable_cpu1’ 
[-Werror=missing-prototypes]

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlow...@canonical.com>

---

Changes since v1:
1. Drop declaration in powermac/smp.c
---
 arch/powerpc/include/asm/pmac_feature.h | 4 ++++
 arch/powerpc/platforms/powermac/smp.c   | 2 --
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/include/asm/pmac_feature.h 
b/arch/powerpc/include/asm/pmac_feature.h
index e08e829261b6..7703e5bf1203 100644
--- a/arch/powerpc/include/asm/pmac_feature.h
+++ b/arch/powerpc/include/asm/pmac_feature.h
@@ -143,6 +143,10 @@
  */
 struct device_node;
 
+#ifdef CONFIG_PPC64
+void g5_phy_disable_cpu1(void);
+#endif /* CONFIG_PPC64 */
+
 static inline long pmac_call_feature(int selector, struct device_node* node,
                                        long param, long value)
 {
diff --git a/arch/powerpc/platforms/powermac/smp.c 
b/arch/powerpc/platforms/powermac/smp.c
index 3256a316e884..5d0626f432d5 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -875,8 +875,6 @@ static int smp_core99_cpu_online(unsigned int cpu)
 
 static void __init smp_core99_bringup_done(void)
 {
-       extern void g5_phy_disable_cpu1(void);
-
        /* Close i2c bus if it was used for tb sync */
        if (pmac_tb_clock_chip_host)
                pmac_i2c_close(pmac_tb_clock_chip_host);
-- 
2.30.2

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