ext4: clean up ext4_abort() so __func__ is now implicit

Use a macro definition for ext4_abort() to clean up the .c files a wee
bit.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 3864a27..d8ec824 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1629,8 +1629,10 @@
 extern void ext4_error_file(const char *, struct file *, const char *, ...)
 	__attribute__ ((format (printf, 3, 4)));
 extern void __ext4_std_error(struct super_block *, const char *, int);
-extern void ext4_abort(struct super_block *, const char *, const char *, ...)
+extern void __ext4_abort(struct super_block *, const char *, const char *, ...)
 	__attribute__ ((format (printf, 3, 4)));
+#define ext4_abort(sb, message...)	__ext4_abort(sb, __func__, \
+						     ## message)
 extern void __ext4_warning(struct super_block *, const char *,
 			  const char *, ...)
 	__attribute__ ((format (printf, 3, 4)));