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Subject[2.6 patch] USB: possible cleanups
Before I'm getting flamed to death:
This patch contains possible cleanups. If parts of this patch conflict
with pending changes these parts of my patch have to be dropped.

This patch contains the following possible cleanups:
- make needlessly global code static
- #if 0 the following unused global functions:
- core/usb.c: usb_buffer_map
- core/usb.c: usb_buffer_unmap
- remove the following unneeded EXPORT_SYMBOL's:
- core/hcd.c: usb_bus_init
- core/hcd.c: usb_alloc_bus
- core/hcd.c: usb_register_bus
- core/hcd.c: usb_deregister_bus
- core/hcd.c: usb_hcd_irq
- core/usb.c: usb_buffer_map
- core/usb.c: usb_buffer_unmap
- core/buffer.c: hcd_buffer_create
- core/buffer.c: hcd_buffer_destroy

Signed-off-by: Adrian Bunk <bunk@stusta.de>

---
drivers/usb/core/buffer.c | 2 --
drivers/usb/core/config.c | 2 +-
drivers/usb/core/hcd.c | 7 +------
drivers/usb/core/hcd.h | 1 -
drivers/usb/core/hub.c | 3 ++-
drivers/usb/core/message.c | 10 ++++++----
drivers/usb/core/usb.c | 14 +++++++++-----
drivers/usb/core/usb.h | 5 -----
drivers/usb/input/aiptek.c | 2 +-
drivers/usb/media/ibmcam.c | 3 ++-
drivers/usb/misc/sisusbvga/sisusb.c | 8 ++++----
drivers/usb/net/catc.c | 3 ++-
drivers/usb/net/kawethfw.h | 8 ++++----
include/linux/usb.h | 4 ++--
14 files changed, 34 insertions(+), 38 deletions(-)
--- linux-2.6.11-rc4-mm1-full/drivers/usb/core/config.c.old 2005-02-28 23:48:53.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/drivers/usb/core/config.c 2005-02-28 23:49:04.000000000 +0100
@@ -221,7 +221,7 @@
return buffer - buffer0 + i;
}

-int usb_parse_configuration(struct device *ddev, int cfgidx,
+static int usb_parse_configuration(struct device *ddev, int cfgidx,
struct usb_host_config *config, unsigned char *buffer, int size)
{
unsigned char *buffer0 = buffer;
--- linux-2.6.11-rc4-mm1-full/drivers/usb/core/hcd.h.old 2005-02-28 23:52:39.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/drivers/usb/core/hcd.h 2005-02-28 23:52:44.000000000 +0100
@@ -208,7 +208,6 @@
};

extern void usb_hcd_giveback_urb (struct usb_hcd *hcd, struct urb *urb, struct pt_regs *regs);
-extern void usb_bus_init (struct usb_bus *bus);

extern struct usb_hcd *usb_create_hcd (const struct hc_driver *driver,
struct device *dev, char *bus_name);
--- linux-2.6.11-rc4-mm1-full/drivers/usb/core/hcd.c.old 2005-02-28 23:51:56.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/drivers/usb/core/hcd.c 2005-03-01 00:27:36.000000000 +0100
@@ -701,7 +701,7 @@
* This code is used to initialize a usb_bus structure, memory for which is
* separately managed.
*/
-void usb_bus_init (struct usb_bus *bus)
+static void usb_bus_init (struct usb_bus *bus)
{
memset (&bus->devmap, 0, sizeof(struct usb_devmap));

@@ -719,7 +719,6 @@
class_device_initialize(&bus->class_dev);
bus->class_dev.class = &usb_host_class;
}
-EXPORT_SYMBOL (usb_bus_init);

/**
* usb_alloc_bus - creates a new USB host controller structure
@@ -745,7 +744,6 @@
bus->op = op;
return bus;
}
-EXPORT_SYMBOL (usb_alloc_bus);

/*-------------------------------------------------------------------------*/

@@ -792,7 +790,6 @@
dev_info (bus->controller, "new USB bus registered, assigned bus number %d\n", bus->busnum);
return 0;
}
-EXPORT_SYMBOL (usb_register_bus);

/**
* usb_deregister_bus - deregisters the USB host controller
@@ -822,7 +819,6 @@

class_device_del(&bus->class_dev);
}
-EXPORT_SYMBOL (usb_deregister_bus);

/**
* usb_register_root_hub - called by HCD to register its root hub
@@ -1557,7 +1553,6 @@
usb_hc_died (hcd);
return IRQ_HANDLED;
}
-EXPORT_SYMBOL (usb_hcd_irq);

/*-------------------------------------------------------------------------*/

--- linux-2.6.11-rc4-mm1-full/drivers/usb/core/hub.c.old 2005-02-28 23:55:36.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/drivers/usb/core/hub.c 2005-02-28 23:56:41.000000000 +0100
@@ -1525,7 +1525,8 @@
* Linux (2.6) currently has NO mechanisms to initiate that: no khubd
* timer, no SRP, no requests through sysfs.
*/
-int __usb_suspend_device (struct usb_device *udev, int port1, pm_message_t state)
+static int __usb_suspend_device (struct usb_device *udev, int port1,
+ pm_message_t state)
{
int status;

--- linux-2.6.11-rc4-mm1-full/drivers/usb/core/usb.h.old 2005-02-28 23:57:04.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/drivers/usb/core/usb.h 2005-03-01 00:03:31.000000000 +0100
@@ -4,8 +4,6 @@
extern void usb_remove_sysfs_dev_files (struct usb_device *dev);
extern void usb_create_sysfs_intf_files (struct usb_interface *intf);
extern void usb_remove_sysfs_intf_files (struct usb_interface *intf);
-extern int usb_probe_interface (struct device *dev);
-extern int usb_unbind_interface (struct device *dev);

extern void usb_disable_endpoint (struct usb_device *dev, unsigned int epaddr);
extern void usb_disable_interface (struct usb_device *dev,
@@ -13,9 +11,6 @@
extern void usb_release_interface_cache(struct kref *ref);
extern void usb_disable_device (struct usb_device *dev, int skip_ep0);

-extern void usb_enable_interface (struct usb_device *dev,
- struct usb_interface *intf);
-
extern int usb_get_device_descriptor(struct usb_device *dev,
unsigned int size);
extern int usb_set_configuration(struct usb_device *dev, int configuration);
--- linux-2.6.11-rc4-mm1-full/drivers/usb/core/message.c.old 2005-02-28 23:57:32.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/drivers/usb/core/message.c 2005-02-28 23:58:25.000000000 +0100
@@ -90,8 +90,10 @@

/*-------------------------------------------------------------------*/
// returns status (negative) or length (positive)
-int usb_internal_control_msg(struct usb_device *usb_dev, unsigned int pipe,
- struct usb_ctrlrequest *cmd, void *data, int len, int timeout)
+static int usb_internal_control_msg(struct usb_device *usb_dev,
+ unsigned int pipe,
+ struct usb_ctrlrequest *cmd,
+ void *data, int len, int timeout)
{
struct urb *urb;
int retv;
@@ -1039,8 +1041,8 @@
*
* Enables all the endpoints for the interface's current altsetting.
*/
-void usb_enable_interface(struct usb_device *dev,
- struct usb_interface *intf)
+static void usb_enable_interface(struct usb_device *dev,
+ struct usb_interface *intf)
{
struct usb_host_interface *alt = intf->cur_altsetting;
int i;
--- linux-2.6.11-rc4-mm1-full/include/linux/usb.h.old 2005-02-28 23:59:37.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/include/linux/usb.h 2005-03-01 00:38:40.000000000 +0100
@@ -942,11 +942,11 @@
void usb_buffer_free (struct usb_device *dev, size_t size,
void *addr, dma_addr_t dma);

-struct urb *usb_buffer_map (struct urb *urb);
#if 0
+struct urb *usb_buffer_map (struct urb *urb);
void usb_buffer_dmasync (struct urb *urb);
-#endif
void usb_buffer_unmap (struct urb *urb);
+#endif

struct scatterlist;
int usb_buffer_map_sg (struct usb_device *dev, unsigned pipe,
--- linux-2.6.11-rc4-mm1-full/drivers/usb/core/usb.c.old 2005-02-28 23:58:40.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/drivers/usb/core/usb.c 2005-03-01 00:37:27.000000000 +0100
@@ -60,7 +60,7 @@

const char *usbcore_name = "usbcore";

-int nousb; /* Disable USB when built into kernel image */
+static int nousb; /* Disable USB when built into kernel image */
/* Not honored on modular build */

static DECLARE_RWSEM(usb_all_devices_rwsem);
@@ -86,7 +86,7 @@
static int usb_generic_driver_data;

/* called from driver core with usb_bus_type.subsys writelock */
-int usb_probe_interface(struct device *dev)
+static int usb_probe_interface(struct device *dev)
{
struct usb_interface * intf = to_usb_interface(dev);
struct usb_driver * driver = to_usb_driver(dev->driver);
@@ -114,7 +114,7 @@
}

/* called from driver core with usb_bus_type.subsys writelock */
-int usb_unbind_interface(struct device *dev)
+static int usb_unbind_interface(struct device *dev)
{
struct usb_interface *intf = to_usb_interface(dev);
struct usb_driver *driver = to_usb_driver(intf->dev.driver);
@@ -1145,6 +1145,7 @@
*
* Reverse the effect of this call with usb_buffer_unmap().
*/
+#if 0
struct urb *usb_buffer_map (struct urb *urb)
{
struct usb_bus *bus;
@@ -1174,6 +1175,7 @@
| URB_NO_SETUP_DMA_MAP);
return urb;
}
+#endif /* 0 */

/* XXX DISABLED, no users currently. If you wish to re-enable this
* XXX please determine whether the sync is to transfer ownership of
@@ -1218,6 +1220,7 @@
*
* Reverses the effect of usb_buffer_map().
*/
+#if 0
void usb_buffer_unmap (struct urb *urb)
{
struct usb_bus *bus;
@@ -1244,6 +1247,7 @@
urb->transfer_flags &= ~(URB_NO_TRANSFER_DMA_MAP
| URB_NO_SETUP_DMA_MAP);
}
+#endif /* 0 */

/**
* usb_buffer_map_sg - create scatterlist DMA mapping(s) for an endpoint
@@ -1524,11 +1528,11 @@
EXPORT_SYMBOL (usb_buffer_alloc);
EXPORT_SYMBOL (usb_buffer_free);

-EXPORT_SYMBOL (usb_buffer_map);
#if 0
+EXPORT_SYMBOL (usb_buffer_map);
EXPORT_SYMBOL (usb_buffer_dmasync);
-#endif
EXPORT_SYMBOL (usb_buffer_unmap);
+#endif

EXPORT_SYMBOL (usb_buffer_map_sg);
#if 0
--- linux-2.6.11-rc4-mm1-full/drivers/usb/input/aiptek.c.old 2005-03-01 00:04:24.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/drivers/usb/input/aiptek.c 2005-03-01 00:04:35.000000000 +0100
@@ -796,7 +796,7 @@
* manufacturing revisions. In any event, we consider these
* IDs to not be model-specific nor unique.
*/
-struct usb_device_id aiptek_ids[] = {
+static const struct usb_device_id aiptek_ids[] = {
{USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x01)},
{USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x10)},
{USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x20)},
--- linux-2.6.11-rc4-mm1-full/drivers/usb/media/ibmcam.c.old 2005-03-01 00:04:53.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/drivers/usb/media/ibmcam.c 2005-03-01 00:05:09.000000000 +0100
@@ -1036,7 +1036,8 @@
* History:
* 1/21/00 Created.
*/
-void ibmcam_ProcessIsocData(struct uvd *uvd, struct usbvideo_frame *frame)
+static void ibmcam_ProcessIsocData(struct uvd *uvd,
+ struct usbvideo_frame *frame)
{
enum ParseState newstate;
long copylen = 0;
--- linux-2.6.11-rc4-mm1-full/drivers/usb/misc/sisusbvga/sisusb.c.old 2005-03-01 00:06:08.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/drivers/usb/misc/sisusbvga/sisusb.c 2005-03-01 00:07:14.000000000 +0100
@@ -2271,7 +2271,7 @@

/* fops */

-int
+static int
sisusb_open(struct inode *inode, struct file *file)
{
struct sisusb_usb_data *sisusb;
@@ -2361,7 +2361,7 @@
kfree(sisusb);
}

-int
+static int
sisusb_release(struct inode *inode, struct file *file)
{
struct sisusb_usb_data *sisusb;
@@ -2399,7 +2399,7 @@
return 0;
}

-ssize_t
+static ssize_t
sisusb_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
{
struct sisusb_usb_data *sisusb;
@@ -2540,7 +2540,7 @@
return errno ? errno : bytes_read;
}

-ssize_t
+static ssize_t
sisusb_write(struct file *file, const char __user *buffer, size_t count,
loff_t *ppos)
{
--- linux-2.6.11-rc4-mm1-full/drivers/usb/net/catc.c.old 2005-03-01 00:08:30.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/drivers/usb/net/catc.c 2005-03-01 00:08:56.000000000 +0100
@@ -664,7 +664,8 @@
}
}

-void catc_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
+static void catc_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *info)
{
struct catc *catc = netdev_priv(dev);
strncpy(info->driver, driver_name, ETHTOOL_BUSINFO_LEN);
--- linux-2.6.11-rc4-mm1-full/drivers/usb/net/kawethfw.h.old 2005-03-01 00:09:26.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/drivers/usb/net/kawethfw.h 2005-03-01 00:10:01.000000000 +0100
@@ -551,7 +551,7 @@
};


-const int len_kaweth_trigger_code = sizeof(kaweth_trigger_code);
-const int len_kaweth_trigger_code_fix = sizeof(kaweth_trigger_code_fix);
-const int len_kaweth_new_code = sizeof(kaweth_new_code);
-const int len_kaweth_new_code_fix = sizeof(kaweth_new_code_fix);
+static const int len_kaweth_trigger_code = sizeof(kaweth_trigger_code);
+static const int len_kaweth_trigger_code_fix = sizeof(kaweth_trigger_code_fix);
+static const int len_kaweth_new_code = sizeof(kaweth_new_code);
+static const int len_kaweth_new_code_fix = sizeof(kaweth_new_code_fix);
--- linux-2.6.11-rc4-mm1-full/drivers/usb/core/buffer.c.old 2005-03-01 00:28:23.000000000 +0100
+++ linux-2.6.11-rc4-mm1-full/drivers/usb/core/buffer.c 2005-03-01 00:28:42.000000000 +0100
@@ -76,7 +76,6 @@
}
return 0;
}
-EXPORT_SYMBOL (hcd_buffer_create);


/**
@@ -98,7 +97,6 @@
}
}
}
-EXPORT_SYMBOL (hcd_buffer_destroy);


/* sometimes alloc/free could use kmalloc with SLAB_DMA, for
-
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