usb: hub: rename khubd to hub_wq in documentation and comments
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>
diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
index cf2734b..3d84b6a 100644
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -627,7 +627,7 @@
if (!(status & PORT_CONNECT))
return -ENODEV;
- /* khubd will finish the reset later */
+ /* hub_wq will finish the reset later */
if (ehci_is_TDI(ehci)) {
writel(PORT_RESET |
(status & ~(PORT_CSC | PORT_PEC | PORT_OCC)),
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 488a308..15feaf924 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -788,7 +788,7 @@
continue;
/* start 20 msec resume signaling from this port,
- * and make khubd collect PORT_STAT_C_SUSPEND to
+ * and make hub_wq collect PORT_STAT_C_SUSPEND to
* stop that signaling. Use 5 ms extra for safety,
* like usb_port_resume() does.
*/
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index 6130b75..7ccb3cc 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -656,7 +656,7 @@
/*
* Return status information even for ports with OWNER set.
- * Otherwise khubd wouldn't see the disconnect event when a
+ * Otherwise hub_wq wouldn't see the disconnect event when a
* high-speed device is switched over to the companion
* controller by the user.
*/
@@ -902,7 +902,7 @@
/*
* Even if OWNER is set, so the port is owned by the
- * companion controller, khubd needs to be able to clear
+ * companion controller, hub_wq needs to be able to clear
* the port-change status bits (especially
* USB_PORT_STAT_C_CONNECTION).
*/
@@ -1000,7 +1000,7 @@
* However, not all EHCI implementations do this
* automatically, even if they _do_ support per-port
* power switching; they're allowed to just limit the
- * current. khubd will turn the power back on.
+ * current. hub_wq will turn the power back on.
*/
if (((temp & PORT_OC) || (ehci->need_oc_pp_cycle))
&& HCS_PPC(ehci->hcs_params)) {
@@ -1085,7 +1085,7 @@
}
/*
- * Even if OWNER is set, there's no harm letting khubd
+ * Even if OWNER is set, there's no harm letting hub_wq
* see the wPortStatus values (they should all be 0 except
* for PORT_POWER anyway).
*/
diff --git a/drivers/usb/host/fhci-hcd.c b/drivers/usb/host/fhci-hcd.c
index 1cf68eaf2..a1a1ef5 100644
--- a/drivers/usb/host/fhci-hcd.c
+++ b/drivers/usb/host/fhci-hcd.c
@@ -360,12 +360,12 @@
hcd->state = HC_STATE_RUNNING;
/*
- * From here on, khubd concurrently accesses the root
+ * From here on, hub_wq concurrently accesses the root
* hub; drivers will be talking to enumerated devices.
- * (On restart paths, khubd already knows about the root
+ * (On restart paths, hub_wq already knows about the root
* hub and could find work as soon as we wrote FLAG_CF.)
*
- * Before this point the HC was idle/ready. After, khubd
+ * Before this point the HC was idle/ready. After, hub_wq
* and device drivers may start it running.
*/
fhci_usb_enable(fhci);
diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c
index adcd205..3de1278 100644
--- a/drivers/usb/host/fotg210-hcd.c
+++ b/drivers/usb/host/fotg210-hcd.c
@@ -1483,7 +1483,7 @@
/*
* Return status information even for ports with OWNER set.
- * Otherwise khubd wouldn't see the disconnect event when a
+ * Otherwise hub_wq wouldn't see the disconnect event when a
* high-speed device is switched over to the companion
* controller by the user.
*/
@@ -1572,7 +1572,7 @@
/*
* Even if OWNER is set, so the port is owned by the
- * companion controller, khubd needs to be able to clear
+ * companion controller, hub_wq needs to be able to clear
* the port-change status bits (especially
* USB_PORT_STAT_C_CONNECTION).
*/
@@ -1723,7 +1723,7 @@
}
/*
- * Even if OWNER is set, there's no harm letting khubd
+ * Even if OWNER is set, there's no harm letting hub_wq
* see the wPortStatus values (they should all be 0 except
* for PORT_POWER anyway).
*/
@@ -5445,7 +5445,7 @@
fotg210->reset_done[0] == 0) {
/* start 20 msec resume signaling from this port,
- * and make khubd collect PORT_STAT_C_SUSPEND to
+ * and make hub_wq collect PORT_STAT_C_SUSPEND to
* stop that signaling. Use 5 ms extra for safety,
* like usb_port_resume() does.
*/
diff --git a/drivers/usb/host/fusbh200-hcd.c b/drivers/usb/host/fusbh200-hcd.c
index ba94990..abe42f3 100644
--- a/drivers/usb/host/fusbh200-hcd.c
+++ b/drivers/usb/host/fusbh200-hcd.c
@@ -1441,7 +1441,7 @@
/*
* Return status information even for ports with OWNER set.
- * Otherwise khubd wouldn't see the disconnect event when a
+ * Otherwise hub_wq wouldn't see the disconnect event when a
* high-speed device is switched over to the companion
* controller by the user.
*/
@@ -1530,7 +1530,7 @@
/*
* Even if OWNER is set, so the port is owned by the
- * companion controller, khubd needs to be able to clear
+ * companion controller, hub_wq needs to be able to clear
* the port-change status bits (especially
* USB_PORT_STAT_C_CONNECTION).
*/
@@ -1678,7 +1678,7 @@
}
/*
- * Even if OWNER is set, there's no harm letting khubd
+ * Even if OWNER is set, there's no harm letting hub_wq
* see the wPortStatus values (they should all be 0 except
* for PORT_POWER anyway).
*/
@@ -5355,7 +5355,7 @@
fusbh200->reset_done[0] == 0) {
/* start 20 msec resume signaling from this port,
- * and make khubd collect PORT_STAT_C_SUSPEND to
+ * and make hub_wq collect PORT_STAT_C_SUSPEND to
* stop that signaling. Use 5 ms extra for safety,
* like usb_port_resume() does.
*/
diff --git a/drivers/usb/host/isp1760-hcd.c b/drivers/usb/host/isp1760-hcd.c
index 51a0ae9..e752c30 100644
--- a/drivers/usb/host/isp1760-hcd.c
+++ b/drivers/usb/host/isp1760-hcd.c
@@ -1760,7 +1760,7 @@
/*
* Return status information even for ports with OWNER set.
- * Otherwise khubd wouldn't see the disconnect event when a
+ * Otherwise hub_wq wouldn't see the disconnect event when a
* high-speed device is switched over to the companion
* controller by the user.
*/
@@ -1871,7 +1871,7 @@
/*
* Even if OWNER is set, so the port is owned by the
- * companion controller, khubd needs to be able to clear
+ * companion controller, hub_wq needs to be able to clear
* the port-change status bits (especially
* USB_PORT_STAT_C_CONNECTION).
*/
@@ -2000,7 +2000,7 @@
reg_read32(hcd->regs, HC_PORTSC1));
}
/*
- * Even if OWNER is set, there's no harm letting khubd
+ * Even if OWNER is set, there's no harm letting hub_wq
* see the wPortStatus values (they should all be 0 except
* for PORT_POWER anyway).
*/
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 4698773..d664eda 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -632,7 +632,7 @@
return -EOVERFLOW;
}
- /* use rhsc irqs after khubd is fully initialized */
+ /* use rhsc irqs after hub_wq is allocated */
set_bit(HCD_FLAG_POLL_RH, &hcd->flags);
hcd->uses_new_polling = 1;
@@ -909,8 +909,8 @@
* choices for RHSC. Many followed the spec; RHSC triggers
* on an edge, like setting and maybe clearing a port status
* change bit. With others it's level-triggered, active
- * until khubd clears all the port status change bits. We'll
- * always disable it here and rely on polling until khubd
+ * until hub_wq clears all the port status change bits. We'll
+ * always disable it here and rely on polling until hub_wq
* re-enables it.
*/
ohci_writel(ohci, OHCI_INTR_RHSC, ®s->intrdisable);
diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c
index 17d32b0..0aa17c9 100644
--- a/drivers/usb/host/ohci-hub.c
+++ b/drivers/usb/host/ohci-hub.c
@@ -585,7 +585,7 @@
if (!(status & RH_PS_CCS))
return -ENODEV;
- /* khubd will finish the reset later */
+ /* hub_wq will finish the reset later */
ohci_writel(ohci, RH_PS_PRS, &ohci->regs->roothub.portstatus [port]);
return 0;
}
@@ -610,7 +610,7 @@
/* wrap-aware logic morphed from <linux/jiffies.h> */
#define tick_before(t1,t2) ((s16)(((s16)(t1))-((s16)(t2))) < 0)
-/* called from some task, normally khubd */
+/* called from some task, normally hub_wq */
static inline int root_port_reset (struct ohci_hcd *ohci, unsigned port)
{
__hc32 __iomem *portstat = &ohci->regs->roothub.portstatus [port];
diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c
index c923caf..de94283 100644
--- a/drivers/usb/host/ohci-omap.c
+++ b/drivers/usb/host/ohci-omap.c
@@ -283,7 +283,7 @@
ohci_to_hcd(ohci)->power_budget = 0;
}
- /* FIXME khubd hub requests should manage power switching */
+ /* FIXME hub_wq hub requests should manage power switching */
omap_ohci_transceiver_power(1);
/* board init will have already handled HMC and mux setup.
diff --git a/drivers/usb/host/oxu210hp-hcd.c b/drivers/usb/host/oxu210hp-hcd.c
index da5fb0e..4fe79a2 100644
--- a/drivers/usb/host/oxu210hp-hcd.c
+++ b/drivers/usb/host/oxu210hp-hcd.c
@@ -2046,7 +2046,7 @@
/* simple/paranoid: always delay, expecting the HC needs to read
* qh->hw_next or finish a writeback after SPLIT/CSPLIT ... and
- * expect khubd to clean up after any CSPLITs we won't issue.
+ * expect hub_wq to clean up after any CSPLITs we won't issue.
* active high speed queues may need bigger delays...
*/
if (list_empty(&qh->qtd_list)
@@ -2501,7 +2501,7 @@
continue;
/* start 20 msec resume signaling from this port,
- * and make khubd collect PORT_STAT_C_SUSPEND to
+ * and make hub_wq collect PORT_STAT_C_SUSPEND to
* stop that signaling.
*/
oxu->reset_done[i] = jiffies + msecs_to_jiffies(20);
@@ -3119,7 +3119,7 @@
/*
* Return status information even for ports with OWNER set.
- * Otherwise khubd wouldn't see the disconnect event when a
+ * Otherwise hub_wq wouldn't see the disconnect event when a
* high-speed device is switched over to the companion
* controller by the user.
*/
@@ -3194,7 +3194,7 @@
/*
* Even if OWNER is set, so the port is owned by the
- * companion controller, khubd needs to be able to clear
+ * companion controller, hub_wq needs to be able to clear
* the port-change status bits (especially
* USB_PORT_STAT_C_CONNECTION).
*/
@@ -3336,7 +3336,7 @@
}
/*
- * Even if OWNER is set, there's no harm letting khubd
+ * Even if OWNER is set, there's no harm letting hub_wq
* see the wPortStatus values (they should all be 0 except
* for PORT_POWER anyway).
*/
diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c
index a517151..ad0c348 100644
--- a/drivers/usb/host/sl811-hcd.c
+++ b/drivers/usb/host/sl811-hcd.c
@@ -674,7 +674,7 @@
sl811->next_periodic = sl811->periodic[index];
}
- /* khubd manages debouncing and wakeup */
+ /* hub_wq manages debouncing and wakeup */
if (irqstat & SL11H_INTMASK_INSRMV) {
sl811->stat_insrmv++;
@@ -714,7 +714,7 @@
#endif
/* port status seems weird until after reset, so
- * force the reset and make khubd clean up later.
+ * force the reset and make hub_wq clean up later.
*/
if (irqstat & SL11H_INTMASK_RD)
sl811->port1 &= ~USB_PORT_STAT_CONNECTION;
@@ -1079,7 +1079,7 @@
if (!(sl811->port1 & (0xffff << 16)))
return 0;
- /* tell khubd port 1 changed */
+ /* tell hub_wq port 1 changed */
*buf = (1 << 1);
return 1;
}
@@ -1196,7 +1196,7 @@
sl811_write(sl811, SL811_EP_A(SL11H_HOSTCTLREG),
SL11H_HCTLMASK_ARM);
- /* khubd provides debounce delay */
+ /* hub_wq provides debounce delay */
} else {
sl811->ctrl1 = 0;
}
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 5e9f9bd..696160d 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -899,7 +899,7 @@
/*
* Turn on ports, even if there isn't per-port switching.
* HC will report connect events even before this is set.
- * However, khubd will ignore the roothub events until
+ * However, hub_wq will ignore the roothub events until
* the roothub is registered.
*/
writel(temp | PORT_POWER, port_array[wIndex]);
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 6ad1648..a4b89b9 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -3760,8 +3760,8 @@
/*
* Issue an Address Device command and optionally send a corresponding
* SetAddress request to the device.
- * We should be protected by the usb_address0_mutex in khubd's hub_port_init, so
- * we should only issue and wait on one address command at the same time.
+ * We should be protected by the usb_address0_mutex in hub_wq's hub_port_init,
+ * so we should only issue and wait on one address command at the same time.
*/
static int xhci_setup_device(struct usb_hcd *hcd, struct usb_device *udev,
enum xhci_setup_dev setup)