diff options
| author | Oliver Neukum <oneukum@suse.de> | 2014-07-14 15:39:49 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-09-05 16:36:24 -0700 |
| commit | 6d481291409440362ce280aaf9ed3a931d8a5c81 (patch) | |
| tree | e1fe4a300e543b913193e535348d5f8547ca6f46 /drivers/usb/core | |
| parent | c2f318586623cae4b6c756414cb8ca99ce474e7f (diff) | |
usbcore: don't log on consecutive debounce failures of the same port
commit 5ee0f803cc3a0738a63288e4a2f453c85889fbda upstream.
Some laptops have an internal port for a BT device which picks
up noise when the kill switch is used, but not enough to trigger
printk_rlimit(). So we shouldn't log consecutive faults of this kind.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/core')
| -rw-r--r-- | drivers/usb/core/hub.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 0e950ad8cb25..232155b76f2f 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -4550,6 +4550,7 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus, struct usb_hcd *hcd = bus_to_hcd(hdev->bus); struct usb_port *port_dev = hub->ports[port1 - 1]; struct usb_device *udev = port_dev->child; + static int unreliable_port = -1; /* Disconnect any existing devices under this port */ if (udev) { @@ -4570,10 +4571,14 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus, USB_PORT_STAT_C_ENABLE)) { status = hub_port_debounce_be_stable(hub, port1); if (status < 0) { - if (status != -ENODEV && printk_ratelimit()) - dev_err(&port_dev->dev, - "connect-debounce failed\n"); + if (status != -ENODEV && + port1 != unreliable_port && + printk_ratelimit()) + dev_err(&udev->dev, "connect-debounce failed, port %d disabled\n", + port1); + portstatus &= ~USB_PORT_STAT_CONNECTION; + unreliable_port = port1; } else { portstatus = status; } |