[SPARC64]: Kill sole argument passed to setup_tba().

No longer used, and move extern declaration to a header file.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/asm-sparc64/cpudata.h b/include/asm-sparc64/cpudata.h
index 6c57cbb..16d6289 100644
--- a/include/asm-sparc64/cpudata.h
+++ b/include/asm-sparc64/cpudata.h
@@ -61,6 +61,7 @@
 extern struct trap_per_cpu trap_block[NR_CPUS];
 extern void init_cur_cpu_trap(void);
 extern void per_cpu_patch(void);
+extern void setup_tba(void);
 
 #endif /* !(__ASSEMBLY__) */