diff options
| author | Felipe Balbi <felipe.balbi@nokia.com> | 2008-06-12 10:49:47 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-07-21 15:16:26 -0700 |
| commit | 38f3ad5e7463d4dd490a8081a5f3f9f2dec7ecd6 (patch) | |
| tree | 2dd60da46d065e4df9e34fe031d13e38bfc22dff /drivers/usb/core/hcd.h | |
| parent | 6deb270b5c60680ca9117bd545302ea6a58bad42 (diff) | |
usb: hub: add check for unsupported bus topology
We can't allow hubs on the 7th tier as they would allow
devices on the 8th tier.
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/core/hcd.h')
| -rw-r--r-- | drivers/usb/core/hcd.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h index 50b8bb2d121..5b0b59b0d89 100644 --- a/drivers/usb/core/hcd.h +++ b/drivers/usb/core/hcd.h @@ -21,6 +21,8 @@ #include <linux/rwsem.h> +#define MAX_TOPO_LEVEL 6 + /* This file contains declarations of usbcore internals that are mostly * used or exposed by Host Controller Drivers. */ |