From: Greg Kroah-Hartman <gregkh@xxxxxxx>
Right now we jump through some hoops to get to the struct ohci_hcd
struct in the ohci debugfs files. Remove all of the fun casting around
and just use the pointer directly.
This is needed as the dev pointer in the hcd structure is going away,
and it makes the code simpler and smaller
Cc: David Brownell <dbrownell@xxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
drivers/usb/host/ohci-dbg.c | 31 ++++++++++---------------------
1 file changed, 10 insertions(+), 21 deletions(-)
--- a/drivers/usb/host/ohci-dbg.c
+++ b/drivers/usb/host/ohci-dbg.c
@@ -431,7 +431,7 @@ static struct dentry *ohci_debug_root;
struct debug_buffer {
ssize_t (*fill_func)(struct debug_buffer *); /* fill method */
- struct device *dev;
+ struct ohci_hcd *ohci;
struct mutex mutex; /* protect filling of buffer */
size_t count; /* number of characters filled into buffer */
char *page;
@@ -505,15 +505,11 @@ show_list (struct ohci_hcd *ohci, char *
static ssize_t fill_async_buffer(struct debug_buffer *buf)
{
- struct usb_bus *bus;
- struct usb_hcd *hcd;
struct ohci_hcd *ohci;
size_t temp;
unsigned long flags;
- bus = dev_get_drvdata(buf->dev);
- hcd = bus_to_hcd(bus);
- ohci = hcd_to_ohci(hcd);
+ ohci = buf->ohci;
/* display control and bulk lists together, for simplicity */
spin_lock_irqsave (&ohci->lock, flags);
@@ -529,8 +525,6 @@ static ssize_t fill_async_buffer(struct
static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
{
- struct usb_bus *bus;
- struct usb_hcd *hcd;
struct ohci_hcd *ohci;
struct ed **seen, *ed;
unsigned long flags;
@@ -542,9 +536,7 @@ static ssize_t fill_periodic_buffer(stru
return 0;
seen_count = 0;
- bus = (struct usb_bus *)dev_get_drvdata(buf->dev);
- hcd = bus_to_hcd(bus);
- ohci = hcd_to_ohci(hcd);
+ ohci = buf->ohci;
next = buf->page;
size = PAGE_SIZE;
@@ -626,7 +618,6 @@ static ssize_t fill_periodic_buffer(stru
static ssize_t fill_registers_buffer(struct debug_buffer *buf)
{
- struct usb_bus *bus;
struct usb_hcd *hcd;
struct ohci_hcd *ohci;
struct ohci_regs __iomem *regs;
@@ -635,9 +626,8 @@ static ssize_t fill_registers_buffer(str
char *next;
u32 rdata;
- bus = (struct usb_bus *)dev_get_drvdata(buf->dev);
- hcd = bus_to_hcd(bus);
- ohci = hcd_to_ohci(hcd);
+ ohci = buf->ohci;
+ hcd = ohci_to_hcd(ohci);
regs = ohci->regs;
next = buf->page;
size = PAGE_SIZE;
@@ -710,7 +700,7 @@ done:
return PAGE_SIZE - size;
}
-static struct debug_buffer *alloc_buffer(struct device *dev,
+static struct debug_buffer *alloc_buffer(struct ohci_hcd *ohci,
ssize_t (*fill_func)(struct debug_buffer *))
{
struct debug_buffer *buf;
@@ -718,7 +708,7 @@ static struct debug_buffer *alloc_buffer
buf = kzalloc(sizeof(struct debug_buffer), GFP_KERNEL);
if (buf) {
- buf->dev = dev;
+ buf->ohci = ohci;
buf->fill_func = fill_func;
mutex_init(&buf->mutex);
}
@@ -810,26 +800,25 @@ static int debug_registers_open(struct i
static inline void create_debug_files (struct ohci_hcd *ohci)
{
struct usb_bus *bus = &ohci_to_hcd(ohci)->self;
- struct device *dev = bus->dev;
ohci->debug_dir = debugfs_create_dir(bus->bus_name, ohci_debug_root);
if (!ohci->debug_dir)
goto dir_error;
ohci->debug_async = debugfs_create_file("async", S_IRUGO,
- ohci->debug_dir, dev,
+ ohci->debug_dir, ohci,
&debug_async_fops);
if (!ohci->debug_async)
goto async_error;
ohci->debug_periodic = debugfs_create_file("periodic", S_IRUGO,
- ohci->debug_dir, dev,
+ ohci->debug_dir, ohci,
&debug_periodic_fops);
if (!ohci->debug_periodic)
goto periodic_error;
ohci->debug_registers = debugfs_create_file("registers", S_IRUGO,
- ohci->debug_dir, dev,
+ ohci->debug_dir, ohci,
&debug_registers_fops);
if (!ohci->debug_registers)
goto registers_error;
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
