diff options
| author |   Johan Hovold <johan@kernel.org> | 2017-05-10 18:18:29 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-05-17 11:53:02 +0200 |
| commit | 93491ced3c87c94b12220dbac0527e1356702179 (patch) | |
| tree | e8662374ccf64386ed345ba31a6ad161e2ca6a92 /include | |
| parent | USB: hub: fix non-SS hub-descriptor handling (diff) | |
| download | linux-dev-93491ced3c87c94b12220dbac0527e1356702179.tar.xz linux-dev-93491ced3c87c94b12220dbac0527e1356702179.zip | |
USB: hub: fix SS max number of ports
Add define for the maximum number of ports on a SuperSpeed hub as per
USB 3.1 spec Table 10-5, and use it when verifying the retrieved hub
descriptor.
This specifically avoids benign attempts to update the DeviceRemovable
mask for non-existing ports (should we get that far).
Fixes: dbe79bbe9dcb ("USB 3.0 Hub Changes")
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/linux/usb/ch11.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/uapi/linux/usb/ch11.h b/include/uapi/linux/usb/ch11.h index 361297e96f58..576c704e3fb8 100644 --- a/include/uapi/linux/usb/ch11.h +++ b/include/uapi/linux/usb/ch11.h @@ -22,6 +22,9 @@ */ #define USB_MAXCHILDREN 31 +/* See USB 3.1 spec Table 10-5 */ +#define USB_SS_MAXPORTS 15 + /* * Hub request types */ |