Index: uspace/srv/fs/fat/fat_fat.c
===================================================================
--- uspace/srv/fs/fat/fat_fat.c	(revision 875edff6500ffa862694e100942c95c19441bb3f)
+++ uspace/srv/fs/fat/fat_fat.c	(revision aa2ea13ab01522f98268028b92e4eb434a507e4a)
@@ -787,5 +787,6 @@
 		 * set to one.
 		 */
-		if (!FAT_IS_FAT12(bs) && ((e0 >> 8) != (FAT_MASK(bs) >> 8) || e1 != FAT_MASK(bs)))
+		if (!FAT_IS_FAT12(bs) && 
+			((e0 >> 8) != (FAT_MASK(bs) >> 8) || e1 != FAT_MASK(bs)))
 			return ENOTSUP;
 	}
Index: uspace/srv/fs/fat/fat_fat.h
===================================================================
--- uspace/srv/fs/fat/fat_fat.h	(revision 875edff6500ffa862694e100942c95c19441bb3f)
+++ uspace/srv/fs/fat/fat_fat.h	(revision aa2ea13ab01522f98268028b92e4eb434a507e4a)
@@ -54,7 +54,7 @@
 #define FAT32_CLST_LAST8  0x0fffffff
 
-#define FAT12_MASK		  0x0fff
-#define FAT16_MASK		  0xffff
-#define FAT32_MASK		  0x0fffffff
+#define FAT12_MASK        0x0fff
+#define FAT16_MASK        0xffff
+#define FAT32_MASK        0x0fffffff
 
 #define FAT12_CLST_MAX    4085
@@ -87,14 +87,19 @@
 
 #define FAT_CLST_LAST1(bs) \
-    (FAT_IS_FAT12(bs) ? FAT12_CLST_LAST1 : (FAT_IS_FAT32(bs) ? FAT32_CLST_LAST1 : FAT16_CLST_LAST1))
+    (FAT_IS_FAT12(bs) ? FAT12_CLST_LAST1 : \
+    (FAT_IS_FAT32(bs) ? FAT32_CLST_LAST1 : FAT16_CLST_LAST1))
 #define FAT_CLST_LAST8(bs) \
-    (FAT_IS_FAT12(bs) ? FAT12_CLST_LAST8 : (FAT_IS_FAT32(bs) ? FAT32_CLST_LAST8 : FAT16_CLST_LAST8))
+    (FAT_IS_FAT12(bs) ? FAT12_CLST_LAST8 : \
+    (FAT_IS_FAT32(bs) ? FAT32_CLST_LAST8 : FAT16_CLST_LAST8))
 #define FAT_CLST_BAD(bs) \
-    (FAT_IS_FAT12(bs) ? FAT12_CLST_BAD : (FAT_IS_FAT32(bs) ? FAT32_CLST_BAD : FAT16_CLST_BAD))
+    (FAT_IS_FAT12(bs) ? FAT12_CLST_BAD : \
+    (FAT_IS_FAT32(bs) ? FAT32_CLST_BAD : FAT16_CLST_BAD))
 
-#define FAT_CLST_SIZE(bs)	(FAT_IS_FAT32(bs) ? FAT32_CLST_SIZE : FAT16_CLST_SIZE)
+#define FAT_CLST_SIZE(bs) \
+    (FAT_IS_FAT32(bs) ? FAT32_CLST_SIZE : FAT16_CLST_SIZE)
 
 #define FAT_MASK(bs) \
-    (FAT_IS_FAT12(bs) ? FAT12_MASK : (FAT_IS_FAT32(bs) ? FAT32_MASK : FAT16_MASK))
+    (FAT_IS_FAT12(bs) ? FAT12_MASK : \
+    (FAT_IS_FAT32(bs) ? FAT32_MASK : FAT16_MASK))
 
 /* forward declarations */