3.2.63-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Oliver Neukum <oneukum@xxxxxxx>
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@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
[bwh: Backported to 3.2:
- Adjust context
- Error message already includes the port number]
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
drivers/usb/core/hub.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -3354,6 +3354,7 @@ static void hub_port_connect_change(stru
le16_to_cpu(hub->descriptor->wHubCharacteristics);
struct usb_device *udev;
int status, i;
+ static int unreliable_port = -1;
dev_dbg (hub_dev,
"port %d, status %04x, change %04x, %s\n",
@@ -3415,10 +3416,11 @@ static void hub_port_connect_change(stru
USB_PORT_STAT_C_ENABLE)) {
status = hub_port_debounce(hub, port1);
if (status < 0) {
- if (printk_ratelimit())
+ if (port1 != unreliable_port && printk_ratelimit())
dev_err(hub_dev, "connect-debounce failed, "
"port %d disabled\n", port1);
portstatus &= ~USB_PORT_STAT_CONNECTION;
+ unreliable_port = port1;
} else {
portstatus = status;
}
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