usbip host lists devices attached to vhci_hcd on the same server
when user does attach over localhost or specifies the server as the
remote.

usbip attach -r localhost -b busid
or
usbip attach -r servername (or server IP)

Fix it to check and not list devices that are attached to vhci_hcd.

Cc: sta...@vger.kernel.org
Signed-off-by: Shuah Khan <shua...@osg.samsung.com>
---
 tools/usb/usbip/src/usbip_list.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/tools/usb/usbip/src/usbip_list.c b/tools/usb/usbip/src/usbip_list.c
index f1b38e866dd7..d65a9f444174 100644
--- a/tools/usb/usbip/src/usbip_list.c
+++ b/tools/usb/usbip/src/usbip_list.c
@@ -187,6 +187,7 @@ static int list_devices(bool parsable)
        const char *busid;
        char product_name[128];
        int ret = -1;
+       const char *devpath;
 
        /* Create libudev context. */
        udev = udev_new();
@@ -209,6 +210,14 @@ static int list_devices(bool parsable)
                path = udev_list_entry_get_name(dev_list_entry);
                dev = udev_device_new_from_syspath(udev, path);
 
+               /* Ignore devices attached to vhci_hcd */
+               devpath = udev_device_get_devpath(dev);
+               if (strstr(devpath, USBIP_VHCI_DRV_NAME)) {
+                       dbg("Skip the device %s already attached to %s\n",
+                           devpath, USBIP_VHCI_DRV_NAME);
+                       continue;
+               }
+
                /* Get device information. */
                idVendor = udev_device_get_sysattr_value(dev, "idVendor");
                idProduct = udev_device_get_sysattr_value(dev, "idProduct");
-- 
2.14.1

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