include: replace __FUNCTION__ with __func__

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/asm-x86/summit/apic.h b/include/asm-x86/summit/apic.h
index c5b2e4b..394b00b 100644
--- a/include/asm-x86/summit/apic.h
+++ b/include/asm-x86/summit/apic.h
@@ -160,7 +160,7 @@
 			int new_apicid = cpu_to_logical_apicid(cpu);
 			if (apicid_cluster(apicid) !=
 					apicid_cluster(new_apicid)){
-				printk ("%s: Not a valid mask!\n",__FUNCTION__);
+				printk ("%s: Not a valid mask!\n", __func__);
 				return 0xFF;
 			}
 			apicid = apicid | new_apicid;