[PATCH] powerpc: Make some symbols static

[Yu Kuai]

The sparse tool complains as follows:

arch/powerpc/kernel/btext.c:48:5: warning:
 symbol 'boot_text_mapped' was not declared. Should it be static?
arch/powerpc/kernel/btext.c:49:5: warning:
 symbol 'force_printk_to_btext' was not declared. Should it be static?

These symbols are not used outside of btext.c, so this
commit marks them static.

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Yu Kuai <yukuai3@xxxxxxxxxx>
---
 arch/powerpc/kernel/btext.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/btext.c b/arch/powerpc/kernel/btext.c
index 803c2a45b22a..6323304d7f6e 100644
--- a/arch/powerpc/kernel/btext.c
+++ b/arch/powerpc/kernel/btext.c
@@ -45,8 +45,8 @@ unsigned long disp_BAT[2] __initdata = {0, 0};
 
 static unsigned char vga_font[cmapsz];
 
-int boot_text_mapped __force_data = 0;
-int force_printk_to_btext = 0;
+static int boot_text_mapped __force_data;
+static int force_printk_to_btext;
 
 extern void rmci_on(void);
 extern void rmci_off(void);
-- 
2.25.4