[PATCH] sparc32: reinstate smp_reschedule_irq()

smp_reschedule_irq() mysteriously vanished sometime after 2.4.  This patch
reinstates it so that the kernel will link properly and so cpus will set
TIF_NEED_RESCHED when it's asked of them.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/sparc/kernel/smp.c

@@ -203,6 +203,11 @@ void smp_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
 	}
 }
 
+void smp_reschedule_irq(void)
+{
+	set_need_resched();
+}
+
 void smp_flush_page_to_ram(unsigned long page)
 {
 	/* Current theory is that those who call this are the one's