diff options
| author | Johan Hovold <johan@kernel.org> | 2017-05-10 18:18:29 +0200 |
|---|---|---|
| committer | Sasha Levin <alexander.levin@verizon.com> | 2017-06-25 22:02:22 -0400 |
| commit | 11f00c7e1194329d35e3605df18c43bc081bdece (patch) | |
| tree | 1073a59b519e8551eaad98494498d13165ec097c /include | |
| parent | e507356624f1ccf8a4bf86b04fa840014316a9de (diff) | |
USB: hub: fix SS max number of ports
[ Upstream commit 93491ced3c87c94b12220dbac0527e1356702179 ]
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>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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 331499d597fa..9ce10d4a0245 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 */ |