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path: root/drivers/staging/usbip/stub_dev.c
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Diffstat (limited to 'drivers/staging/usbip/stub_dev.c')
-rw-r--r--drivers/staging/usbip/stub_dev.c97
1 files changed, 30 insertions, 67 deletions
diff --git a/drivers/staging/usbip/stub_dev.c b/drivers/staging/usbip/stub_dev.c
index bce7d039346c..6e99ec87fee0 100644
--- a/drivers/staging/usbip/stub_dev.c
+++ b/drivers/staging/usbip/stub_dev.c
@@ -17,19 +17,16 @@
* USA.
*/
-#include <linux/slab.h>
+#include <linux/device.h>
#include <linux/kthread.h>
#include "usbip_common.h"
#include "stub.h"
-
-
static int stub_probe(struct usb_interface *interface,
- const struct usb_device_id *id);
+ const struct usb_device_id *id);
static void stub_disconnect(struct usb_interface *interface);
-
/*
* Define device IDs here if you want to explicitly limit exportable devices.
* In the most cases, wild card matching will be ok because driver binding can
@@ -64,12 +61,6 @@ struct usb_driver stub_driver = {
.id_table = stub_table,
};
-
-/*-------------------------------------------------------------------------*/
-
-/* Define sysfs entries for a usbip-bound device */
-
-
/*
* usbip_status shows status of usbip as long as this driver is bound to the
* target device.
@@ -128,13 +119,11 @@ static ssize_t store_sockfd(struct device *dev, struct device_attribute *attr,
spin_unlock(&sdev->ud.lock);
return -EINVAL;
}
-
#if 0
setnodelay(socket);
setkeepalive(socket);
setreuse(socket);
#endif
-
sdev->ud.tcp_socket = socket;
spin_unlock(&sdev->ud.lock);
@@ -183,10 +172,8 @@ static int stub_add_files(struct device *dev)
err_debug:
device_remove_file(dev, &dev_attr_usbip_sockfd);
-
err_sockfd:
device_remove_file(dev, &dev_attr_usbip_status);
-
err_status:
return err;
}
@@ -198,12 +185,6 @@ static void stub_remove_files(struct device *dev)
device_remove_file(dev, &dev_attr_usbip_debug);
}
-
-
-/*-------------------------------------------------------------------------*/
-
-/* Event handler functions called by an event handler thread */
-
static void stub_shutdown_connection(struct usbip_device *ud)
{
struct stub_device *sdev = container_of(ud, struct stub_device, ud);
@@ -215,7 +196,8 @@ static void stub_shutdown_connection(struct usbip_device *ud)
* step 1?
*/
if (ud->tcp_socket) {
- usbip_udbg("shutdown tcp_socket %p\n", ud->tcp_socket);
+ dev_dbg(&sdev->udev->dev, "shutdown tcp_socket %p\n",
+ ud->tcp_socket);
kernel_sock_shutdown(ud->tcp_socket, SHUT_RDWR);
}
@@ -244,18 +226,15 @@ static void stub_shutdown_connection(struct usbip_device *ud)
struct stub_unlink *unlink, *tmp;
spin_lock_irqsave(&sdev->priv_lock, flags);
-
list_for_each_entry_safe(unlink, tmp, &sdev->unlink_tx, list) {
list_del(&unlink->list);
kfree(unlink);
}
-
list_for_each_entry_safe(unlink, tmp,
&sdev->unlink_free, list) {
list_del(&unlink->list);
kfree(unlink);
}
-
spin_unlock_irqrestore(&sdev->priv_lock, flags);
}
}
@@ -266,16 +245,14 @@ static void stub_device_reset(struct usbip_device *ud)
struct usb_device *udev = sdev->udev;
int ret;
- usbip_udbg("device reset");
+ dev_dbg(&udev->dev, "device reset");
ret = usb_lock_device_for_reset(udev, sdev->interface);
if (ret < 0) {
dev_err(&udev->dev, "lock for reset\n");
-
spin_lock(&ud->lock);
ud->status = SDEV_ST_ERROR;
spin_unlock(&ud->lock);
-
return;
}
@@ -306,9 +283,6 @@ static void stub_device_unusable(struct usbip_device *ud)
spin_unlock(&ud->lock);
}
-
-/*-------------------------------------------------------------------------*/
-
/**
* stub_device_alloc - allocate a new stub_device struct
* @interface: usb_interface of a new device
@@ -339,13 +313,12 @@ static struct stub_device *stub_device_alloc(struct usb_device *udev,
* devnum may change later if a device is reset. However, devid never
* changes during a usbip connection.
*/
- sdev->devid = (busnum << 16) | devnum;
-
- sdev->ud.side = USBIP_STUB;
- sdev->ud.status = SDEV_ST_AVAILABLE;
+ sdev->devid = (busnum << 16) | devnum;
+ sdev->ud.side = USBIP_STUB;
+ sdev->ud.status = SDEV_ST_AVAILABLE;
/* sdev->ud.lock = SPIN_LOCK_UNLOCKED; */
spin_lock_init(&sdev->ud.lock);
- sdev->ud.tcp_socket = NULL;
+ sdev->ud.tcp_socket = NULL;
INIT_LIST_HEAD(&sdev->priv_init);
INIT_LIST_HEAD(&sdev->priv_tx);
@@ -363,7 +336,8 @@ static struct stub_device *stub_device_alloc(struct usb_device *udev,
usbip_start_eh(&sdev->ud);
- usbip_udbg("register new interface\n");
+ dev_dbg(&interface->dev, "register new interface\n");
+
return sdev;
}
@@ -373,14 +347,11 @@ static int stub_device_free(struct stub_device *sdev)
return -EINVAL;
kfree(sdev);
- usbip_udbg("kfree udev ok\n");
+ pr_debug("kfree udev ok\n");
return 0;
}
-
-/*-------------------------------------------------------------------------*/
-
/*
* If a usb device has multiple active interfaces, this driver is bound to all
* the active interfaces. However, usbip exports *a* usb device (i.e., not *an*
@@ -405,10 +376,9 @@ static int stub_probe(struct usb_interface *interface,
/* check we should claim or not by busid_table */
busid_priv = get_busid_priv(udev_busid);
if (!busid_priv || (busid_priv->status == STUB_BUSID_REMOV) ||
- (busid_priv->status == STUB_BUSID_OTHER)) {
- dev_info(&interface->dev,
- "this device %s is not in match_busid table. skip!\n",
- udev_busid);
+ (busid_priv->status == STUB_BUSID_OTHER)) {
+ dev_info(&interface->dev, "%s is not in match_busid table... "
+ "skip!\n", udev_busid);
/*
* Return value should be ENODEV or ENOXIO to continue trying
@@ -418,36 +388,35 @@ static int stub_probe(struct usb_interface *interface,
return -ENODEV;
}
- if (udev->descriptor.bDeviceClass == USB_CLASS_HUB) {
- usbip_udbg("this device %s is a usb hub device. skip!\n",
- udev_busid);
+ if (udev->descriptor.bDeviceClass == USB_CLASS_HUB) {
+ dev_dbg(&udev->dev, "%s is a usb hub device... skip!\n",
+ udev_busid);
return -ENODEV;
}
if (!strcmp(udev->bus->bus_name, "vhci_hcd")) {
- usbip_udbg("this device %s is attached on vhci_hcd. skip!\n",
- udev_busid);
+ dev_dbg(&udev->dev, "%s is attached on vhci_hcd... skip!\n",
+ udev_busid);
return -ENODEV;
}
-
if (busid_priv->status == STUB_BUSID_ALLOC) {
sdev = busid_priv->sdev;
if (!sdev)
return -ENODEV;
busid_priv->interf_count++;
- dev_info(&interface->dev,
- "USB/IP Stub: register a new interface "
- "(bus %u dev %u ifn %u)\n", udev->bus->busnum, udev->devnum,
- interface->cur_altsetting->desc.bInterfaceNumber);
+ dev_info(&interface->dev, "usbip-host: register new interface "
+ "(bus %u dev %u ifn %u)\n",
+ udev->bus->busnum, udev->devnum,
+ interface->cur_altsetting->desc.bInterfaceNumber);
/* set private data to usb_interface */
usb_set_intfdata(interface, sdev);
err = stub_add_files(&interface->dev);
if (err) {
- dev_err(&interface->dev, "create sysfs files for %s\n",
+ dev_err(&interface->dev, "stub_add_files for %s\n",
udev_busid);
usb_set_intfdata(interface, NULL);
busid_priv->interf_count--;
@@ -464,7 +433,7 @@ static int stub_probe(struct usb_interface *interface,
if (!sdev)
return -ENOMEM;
- dev_info(&interface->dev, "USB/IP Stub: register a new device "
+ dev_info(&interface->dev, "usbip-host: register new device "
"(bus %u dev %u ifn %u)\n", udev->bus->busnum, udev->devnum,
interface->cur_altsetting->desc.bInterfaceNumber);
@@ -479,8 +448,7 @@ static int stub_probe(struct usb_interface *interface,
err = stub_add_files(&interface->dev);
if (err) {
- dev_err(&interface->dev, "create sysfs files for %s\n",
- udev_busid);
+ dev_err(&interface->dev, "stub_add_files for %s\n", udev_busid);
usb_set_intfdata(interface, NULL);
usb_put_intf(interface);
@@ -504,10 +472,8 @@ static void shutdown_busid(struct bus_id_priv *busid_priv)
/* 2. wait for the stop of the event handler */
usbip_stop_eh(&busid_priv->sdev->ud);
}
-
}
-
/*
* called in usb_disconnect() or usb_deregister()
* but only if actconfig(active configuration) exists
@@ -518,10 +484,9 @@ static void stub_disconnect(struct usb_interface *interface)
const char *udev_busid = dev_name(interface->dev.parent);
struct bus_id_priv *busid_priv;
- busid_priv = get_busid_priv(udev_busid);
-
- usbip_udbg("Enter\n");
+ dev_dbg(&interface->dev, "Enter\n");
+ busid_priv = get_busid_priv(udev_busid);
if (!busid_priv) {
BUG();
return;
@@ -531,7 +496,7 @@ static void stub_disconnect(struct usb_interface *interface)
/* get stub_device */
if (!sdev) {
- err(" could not get device from inteface data");
+ dev_err(&interface->dev, "could not get device");
/* BUG(); */
return;
}
@@ -559,7 +524,6 @@ static void stub_disconnect(struct usb_interface *interface)
busid_priv->interf_count = 0;
-
/* 1. shutdown the current connection */
shutdown_busid(busid_priv);
@@ -576,5 +540,4 @@ static void stub_disconnect(struct usb_interface *interface)
busid_priv->status = STUB_BUSID_OTHER;
del_match_busid((char *)udev_busid);
}
- usbip_udbg("bye\n");
}
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-21 00:39:15 +0200