fs: replace remaining __FUNCTION__ occurrences

__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/fs/adfs/adfs.h b/fs/adfs/adfs.h
index 936f2af..8311575 100644
--- a/fs/adfs/adfs.h
+++ b/fs/adfs/adfs.h
@@ -75,7 +75,7 @@
 /* Misc */
 void __adfs_error(struct super_block *sb, const char *function,
 		  const char *fmt, ...);
-#define adfs_error(sb, fmt...) __adfs_error(sb, __FUNCTION__, fmt)
+#define adfs_error(sb, fmt...) __adfs_error(sb, __func__, fmt)
 
 /* super.c */