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usb: Remove usb_for_each_port()

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Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20211223082432.45653-1-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Heikki Krogerus 2021-12-23 11:24:32 +03:00 committed by Greg Kroah-Hartman
parent 730b49aac4
commit 510a0bdb2b
2 changed files with 0 additions and 55 deletions
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46
drivers/usb/core/usb.c
View File

@ -398,52 +398,6 @@ int usb_for_each_dev(void *data, int (*fn)(struct usb_device *, void *))
}
EXPORT_SYMBOL_GPL(usb_for_each_dev);
struct each_hub_arg {
void *data;
int (*fn)(struct device *, void *);
};
static int __each_hub(struct usb_device *hdev, void *data)
{
struct each_hub_arg *arg = (struct each_hub_arg *)data;
struct usb_hub *hub;
int ret = 0;
int i;
hub = usb_hub_to_struct_hub(hdev);
if (!hub)
return 0;
mutex_lock(&usb_port_peer_mutex);
for (i = 0; i < hdev->maxchild; i++) {
ret = arg->fn(&hub->ports[i]->dev, arg->data);
if (ret)
break;
}
mutex_unlock(&usb_port_peer_mutex);
return ret;
}
/**
* usb_for_each_port - interate over all USB ports in the system
* @data: data pointer that will be handed to the callback function
* @fn: callback function to be called for each USB port
*
* Iterate over all USB ports and call @fn for each, passing it @data. If it
* returns anything other than 0, we break the iteration prematurely and return
* that value.
*/
int usb_for_each_port(void *data, int (*fn)(struct device *, void *))
{
struct each_hub_arg arg = {data, fn};
return usb_for_each_dev(&arg, __each_hub);
}
EXPORT_SYMBOL_GPL(usb_for_each_port);
/**
* usb_release_dev - free a usb device structure when all users of it are finished.
* @dev: device that's been disconnected

9
include/linux/usb.h
View File

@ -875,15 +875,6 @@ extern struct usb_host_interface *usb_find_alt_setting(
unsigned int iface_num,
unsigned int alt_num);
#if IS_REACHABLE(CONFIG_USB)
int usb_for_each_port(void *data, int (*fn)(struct device *, void *));
#else
static inline int usb_for_each_port(void *data, int (*fn)(struct device *, void *))
{
return 0;
}
#endif
/* port claiming functions */
int usb_hub_claim_port(struct usb_device *hdev, unsigned port1,
struct usb_dev_state *owner);