In commit cb9e4d10c448 ("[POWERPC] Add support for 750CL Holly board")
new functions were added. Since most of these functions can be made static,
make it so.

Both holly_power_off and holly_halt functions were not changed since they
are unused, making them static would have triggered the following warning
(treated as error):

  arch/powerpc/platforms/embedded6xx/holly.c:244:13: error: 'holly_halt' defined but not used [-Werror=unused-function]

Silence the following warnings triggered using W=1:

  arch/powerpc/platforms/embedded6xx/holly.c:47:5: error: no previous prototype for 'holly_exclude_device' [-Werror=missing-prototypes]
  arch/powerpc/platforms/embedded6xx/holly.c:190:6: error: no previous prototype for 'holly_show_cpuinfo' [-Werror=missing-prototypes]
  arch/powerpc/platforms/embedded6xx/holly.c:196:17: error: no previous prototype for 'holly_restart' [-Werror=missing-prototypes]

Signed-off-by: Mathieu Malaterre <redacted>
---
v2: Split the patch in two operations

 arch/powerpc/platforms/embedded6xx/holly.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/platforms/embedded6xx/holly.c b/arch/powerpc/platforms/embedded6xx/holly.c
index 0409714e8070..9d2eefef7b7b 100644
--- a/arch/powerpc/platforms/embedded6xx/holly.c
+++ b/arch/powerpc/platforms/embedded6xx/holly.c

@@ -44,7 +44,8 @@
 
 #define HOLLY_PCI_CFG_PHYS 0x7c000000
 
-int holly_exclude_device(struct pci_controller *hose, u_char bus, u_char devfn)
+static int holly_exclude_device(struct pci_controller *hose, u_char bus,
+				u_char devfn)
 {
 	if (bus == 0 && PCI_SLOT(devfn) == 0)
 		return PCIBIOS_DEVICE_NOT_FOUND;

@@ -187,13 +188,13 @@ static void __init holly_init_IRQ(void)
 	tsi108_write_reg(TSI108_MPIC_OFFSET + 0x30c, 0);
 }
 
-void holly_show_cpuinfo(struct seq_file *m)
+static void holly_show_cpuinfo(struct seq_file *m)
 {
 	seq_printf(m, "vendor\t\t: IBM\n");
 	seq_printf(m, "machine\t\t: PPC750 GX/CL\n");
 }
 
-void __noreturn holly_restart(char *cmd)
+static void __noreturn holly_restart(char *cmd)
 {
 	__be32 __iomem *ocn_bar1 = NULL;
 	unsigned long bar;

-- 
2.20.1