This is a note to let you know that I've just added the patch titled
usbip: fix usbip attach to find a port that matches the requested
to my usb git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-linus branch.
The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the
next -rc kernel release.
If you have any questions about this process, please let me know.
>From 1ac7c8a78be85f84b019d3d2742d1a9f07255cc5 Mon Sep 17 00:00:00 2001
From: Shuah Khan <shuahkh@xxxxxxxxxxxxxxx>
Date: Wed, 29 Nov 2017 15:24:22 -0700
Subject: usbip: fix usbip attach to find a port that matches the requested
speed
usbip attach fails to find a free port when the device on the first port
is a USB_SPEED_SUPER device and non-super speed device is being attached.
It keeps checking the first port and returns without a match getting stuck
in a loop.
Fix it check to find the first port with matching speed.
Reported-by: Juan Zea <juan.zea@xxxxxxxxxx>
Signed-off-by: Shuah Khan <shuahkh@xxxxxxxxxxxxxxx>
Cc: stable <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
tools/usb/usbip/libsrc/vhci_driver.c | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/tools/usb/usbip/libsrc/vhci_driver.c b/tools/usb/usbip/libsrc/vhci_driver.c
index 5727dfb15a83..8a1cd1616de4 100644
--- a/tools/usb/usbip/libsrc/vhci_driver.c
+++ b/tools/usb/usbip/libsrc/vhci_driver.c
@@ -329,9 +329,17 @@ int usbip_vhci_refresh_device_list(void)
int usbip_vhci_get_free_port(uint32_t speed)
{
for (int i = 0; i < vhci_driver->nports; i++) {
- if (speed == USB_SPEED_SUPER &&
- vhci_driver->idev[i].hub != HUB_SPEED_SUPER)
- continue;
+
+ switch (speed) {
+ case USB_SPEED_SUPER:
+ if (vhci_driver->idev[i].hub != HUB_SPEED_SUPER)
+ continue;
+ break;
+ default:
+ if (vhci_driver->idev[i].hub != HUB_SPEED_HIGH)
+ continue;
+ break;
+ }
if (vhci_driver->idev[i].status == VDEV_ST_NULL)
return vhci_driver->idev[i].port;
--
2.15.1