target/linux/adm5120/patches-2.6.38/903-adm5120-usb-use-the-admhcd-structure-directly-in-debugfs-files.patch

   1 --- a/drivers/usb/host/adm5120-dbg.c
   2 +++ b/drivers/usb/host/adm5120-dbg.c
   3 @@ -419,7 +419,7 @@ static struct dentry *admhc_debug_root;
   4
   5  struct debug_buffer {
   6         ssize_t (*fill_func)(struct debug_buffer *);    /* fill method */
   7 -       struct device *dev;
   8 +       struct admhcd *ahcd;
   9         struct mutex mutex;     /* protect filling of buffer */
  10         size_t count;           /* number of characters filled into buffer */
  11         char *page;
  12 @@ -494,15 +494,11 @@ show_list(struct admhcd *ahcd, char *buf
  13
  14  static ssize_t fill_async_buffer(struct debug_buffer *buf)
  15  {
  16 -       struct usb_bus          *bus;
  17 -       struct usb_hcd          *hcd;
  18         struct admhcd           *ahcd;
  19         size_t                  temp;
  20         unsigned long           flags;
  21
  22 -       bus = dev_get_drvdata(buf->dev);
  23 -       hcd = bus_to_hcd(bus);
  24 -       ahcd = hcd_to_admhcd(hcd);
  25 +       ahcd = buf->ahcd;
  26
  27         spin_lock_irqsave(&ahcd->lock, flags);
  28         temp = show_list(ahcd, buf->page, PAGE_SIZE, ahcd->ed_head);
  29 @@ -516,8 +512,6 @@ static ssize_t fill_async_buffer(struct
  30
  31  static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
  32  {
  33 -       struct usb_bus          *bus;
  34 -       struct usb_hcd          *hcd;
  35         struct admhcd           *ahcd;
  36         struct ed               **seen, *ed;
  37         unsigned long           flags;
  38 @@ -529,9 +523,7 @@ static ssize_t fill_periodic_buffer(stru
  39                 return 0;
  40         seen_count = 0;
  41
  42 -       bus = dev_get_drvdata(buf->dev);
  43 -       hcd = bus_to_hcd(bus);
  44 -       ahcd = hcd_to_admhcd(hcd);
  45 +       ahcd = buf->ahcd;
  46         next = buf->page;
  47         size = PAGE_SIZE;
  48
  49 @@ -613,7 +605,6 @@ static ssize_t fill_periodic_buffer(stru
  50
  51  static ssize_t fill_registers_buffer(struct debug_buffer *buf)
  52  {
  53 -       struct usb_bus          *bus;
  54         struct usb_hcd          *hcd;
  55         struct admhcd           *ahcd;
  56         struct admhcd_regs __iomem *regs;
  57 @@ -622,9 +613,8 @@ static ssize_t fill_registers_buffer(str
  58         char                    *next;
  59         u32                     rdata;
  60
  61 -       bus = dev_get_drvdata(buf->dev);
  62 -       hcd = bus_to_hcd(bus);
  63 -       ahcd = hcd_to_admhcd(hcd);
  64 +       ahcd = buf->ahcd;
  65 +       hcd = admhcd_to_hcd(ahcd);
  66         regs = ahcd->regs;
  67         next = buf->page;
  68         size = PAGE_SIZE;
  69 @@ -689,7 +679,7 @@ done:
  70  }
  71
  72
  73 -static struct debug_buffer *alloc_buffer(struct device *dev,
  74 +static struct debug_buffer *alloc_buffer(struct admhcd *ahcd,
  75                                 ssize_t (*fill_func)(struct debug_buffer *))
  76  {
  77         struct debug_buffer *buf;
  78 @@ -697,7 +687,7 @@ static struct debug_buffer *alloc_buffer
  79         buf = kzalloc(sizeof(struct debug_buffer), GFP_KERNEL);
  80
  81         if (buf) {
  82 -               buf->dev = dev;
  83 +               buf->ahcd = ahcd;
  84                 buf->fill_func = fill_func;
  85                 mutex_init(&buf->mutex);
  86         }
  87 @@ -790,26 +780,25 @@ static int debug_registers_open(struct i
  88  static inline void create_debug_files(struct admhcd *ahcd)
  89  {
  90         struct usb_bus *bus = &admhcd_to_hcd(ahcd)->self;
  91 -       struct device *dev = bus->dev;
  92
  93         ahcd->debug_dir = debugfs_create_dir(bus->bus_name, admhc_debug_root);
  94         if (!ahcd->debug_dir)
  95                 goto dir_error;
  96
  97         ahcd->debug_async = debugfs_create_file("async", S_IRUGO,
  98 -                                               ahcd->debug_dir, dev,
  99 +                                               ahcd->debug_dir, ahcd,
 100                                                 &debug_async_fops);
 101         if (!ahcd->debug_async)
 102                 goto async_error;
 103
 104         ahcd->debug_periodic = debugfs_create_file("periodic", S_IRUGO,
 105 -                                               ahcd->debug_dir, dev,
 106 +                                               ahcd->debug_dir, ahcd,
 107                                                 &debug_periodic_fops);
 108         if (!ahcd->debug_periodic)
 109                 goto periodic_error;
 110
 111         ahcd->debug_registers = debugfs_create_file("registers", S_IRUGO,
 112 -                                               ahcd->debug_dir, dev,
 113 +                                               ahcd->debug_dir, ahcd,
 114                                                 &debug_registers_fops);
 115         if (!ahcd->debug_registers)
 116                 goto registers_error;