[Blackfin] arch: __FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Signed-off-by: Bryan Wu <cooloney@kernel.org>

diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c
index 225ef14..a2a1171 100644
--- a/arch/blackfin/mach-common/ints-priority.c
+++ b/arch/blackfin/mach-common/ints-priority.c
@@ -316,7 +316,7 @@
 		printk(KERN_ERR
 		       "%s : %s : LINE %d :\nIRQ ?: PERIPHERAL ERROR"
 		       " INTERRUPT ASSERTED BUT NO SOURCE FOUND\n",
-		       __FUNCTION__, __FILE__, __LINE__);
+		       __func__, __FILE__, __LINE__);
 
 }
 #endif				/* BF537_GENERIC_ERROR_INT_DEMUX */