diff --git a/arch/microblaze/include/asm/setup.h b/arch/microblaze/include/asm/setup.h
index 0990b436be51..be84a4d3917f 100644
--- a/arch/microblaze/include/asm/setup.h
+++ b/arch/microblaze/include/asm/setup.h
@@ -19,8 +19,6 @@ extern char cmd_line[COMMAND_LINE_SIZE];
 
 extern char *klimit;
 
-void early_printk(const char *fmt, ...);
-
 int setup_early_printk(char *opt);
 void remap_early_printk(void);
 void disable_early_printk(void);