[PATCH] msdos and vfat endianness fixes

Some callers of fat_date_unix2dos() (in msdos/namei.c and vfat/namei.c)
forgot to convert returned host-endian date and time to little-endian.
Since all callers want to get little-endian values, moved the conversion
into function itself.
Signed-off-by: Al Viro <viro@parcelfarce.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/fat/dir.c

@@ -745,12 +745,12 @@ int fat_new_dir(struct inode *dir, struct inode *parent, int is_vfat)
 	memcpy(de[0].name,MSDOS_DOT,MSDOS_NAME);
 	memcpy(de[1].name,MSDOS_DOTDOT,MSDOS_NAME);
 	de[0].attr = de[1].attr = ATTR_DIR;
-	de[0].time = de[1].time = CT_LE_W(time);
-	de[0].date = de[1].date = CT_LE_W(date);
+	de[0].time = de[1].time = time;
+	de[0].date = de[1].date = date;
 	if (is_vfat) {	/* extra timestamps */
-		de[0].ctime = de[1].ctime = CT_LE_W(time);
+		de[0].ctime = de[1].ctime = time;
 		de[0].adate = de[0].cdate =
-			de[1].adate = de[1].cdate = CT_LE_W(date);
+			de[1].adate = de[1].cdate = date;
 	}
 	de[0].start = CT_LE_W(MSDOS_I(dir)->i_logstart);
 	de[0].starthi = CT_LE_W(MSDOS_I(dir)->i_logstart>>16);

fs/fat/inode.c

@@ -1268,14 +1268,10 @@ void fat_write_inode(struct inode *inode, int wait)
 	    MSDOS_I(inode)->i_attrs;
 	raw_entry->start = CT_LE_W(MSDOS_I(inode)->i_logstart);
 	raw_entry->starthi = CT_LE_W(MSDOS_I(inode)->i_logstart >> 16);
-	fat_date_unix2dos(inode->i_mtime.tv_sec,&raw_entry->time,&raw_entry->date);
-	raw_entry->time = CT_LE_W(raw_entry->time);
-	raw_entry->date = CT_LE_W(raw_entry->date);
+	fat_date_unix2dos(inode->i_mtime.tv_sec, &raw_entry->time, &raw_entry->date);
 	if (MSDOS_SB(sb)->options.isvfat) {
 		fat_date_unix2dos(inode->i_ctime.tv_sec,&raw_entry->ctime,&raw_entry->cdate);
 		raw_entry->ctime_ms = MSDOS_I(inode)->i_ctime_ms; /* use i_ctime.tv_nsec? */
-		raw_entry->ctime = CT_LE_W(raw_entry->ctime);
-		raw_entry->cdate = CT_LE_W(raw_entry->cdate);
 	}
 	spin_unlock(&fat_inode_lock);
 	mark_buffer_dirty(bh);

fs/fat/misc.c

@@ -254,8 +254,8 @@ void fat_date_unix2dos(int unix_date,unsigned short *time,
 	if (unix_date < 315532800)
 		unix_date = 315532800;
 
-	*time = (unix_date % 60)/2+(((unix_date/60) % 60) << 5)+
-	    (((unix_date/3600) % 24) << 11);
+	*time = cpu_to_le16((unix_date % 60)/2+(((unix_date/60) % 60) << 5)+
+	    (((unix_date/3600) % 24) << 11));
 	day = unix_date/86400-3652;
 	year = day/365;
 	if ((year+3)/4+365*year > day) year--;
@@ -269,7 +269,7 @@ void fat_date_unix2dos(int unix_date,unsigned short *time,
 		for (month = 0; month < 12; month++)
 			if (day_n[month] > nl_day) break;
 	}
-	*date = nl_day-day_n[month-1]+1+(month << 5)+(year << 9);
+	*date = cpu_to_le16(nl_day-day_n[month-1]+1+(month << 5)+(year << 9));
 }