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usb: hub: rename khubd to hub_wq in documentation and comments

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USB hub has started to use a workqueue instead of kthread. Let's update
the documentation and comments here and there.

This patch mostly just replaces "khubd" with "hub_wq". There are only few
exceptions where the whole sentence was updated. These more complicated
changes can be found in the following files:

	   Documentation/usb/hotplug.txt
	   drivers/net/usb/usbnet.c
	   drivers/usb/core/hcd.c
	   drivers/usb/host/ohci-hcd.c
	   drivers/usb/host/xhci.c

Signed-off-by: Petr Mladek <pmladek@suse.cz>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Petr Mladek
2014-09-19 17:32:23 +02:00
committed by Greg Kroah-Hartman
parent 59d48b3f1f
commit 37ebb54915
29 changed files with 89 additions and 86 deletions
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14
drivers/net/usb/usbnet.c
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@@ -69,8 +69,9 @@
// reawaken network queue this soon after stopping; else watchdog barks
#define TX_TIMEOUT_JIFFIES (5*HZ)
// throttle rx/tx briefly after some faults, so khubd might disconnect()
// us (it polls at HZ/4 usually) before we report too many false errors.
/* throttle rx/tx briefly after some faults, so hub_wq might disconnect()
* us (it polls at HZ/4 usually) before we report too many false errors.
*/
#define THROTTLE_JIFFIES (HZ/8)
// between wakeups
@@ -595,9 +596,9 @@ static void rx_complete (struct urb *urb)
"rx shutdown, code %d\n", urb_status);
goto block;
/* we get controller i/o faults during khubd disconnect() delays.
/* we get controller i/o faults during hub_wq disconnect() delays.
* throttle down resubmits, to avoid log floods; just temporarily,
* so we still recover when the fault isn't a khubd delay.
* so we still recover when the fault isn't a hub_wq delay.
*/
case -EPROTO:
case -ETIME:
@@ -1185,8 +1186,9 @@ static void tx_complete (struct urb *urb)
case -ESHUTDOWN: // hardware gone
break;
// like rx, tx gets controller i/o faults during khubd delays
// and so it uses the same throttling mechanism.
/* like rx, tx gets controller i/o faults during hub_wq
* delays and so it uses the same throttling mechanism.
*/
case -EPROTO:
case -ETIME:
case -EILSEQ: