From 457a0955e152ac3b0de46ecbe7a8b434856fda67 Mon Sep 17 00:00:00 2001 From: Amit Virdi Date: Fri, 22 Aug 2014 14:36:37 +0530 Subject: usbtest: Add interrupt EP testcases Two simple test cases for interrupt endpoints are added to the usbtest.c file. These are simple non-queued interrupt IN and interrupt OUT transfers. Currently, only gadget zero is capable of executing the interrupt EP test cases. However, extending the same to other gadgets is extremely simple and can be done on-demand. The two new tests added are - Test 25: To verify Interrupt OUT transfer - Test 26: To verify Interrupt IN transfer Since the default value of wMaxPacketSize is set as 1024, so interrupt IN transfers must be specified with the size parameter = multiple of 1024. Otherwise the default value (512) in the usbtest application fails the transfer. See [RUN 4] for sample logs The application logs (usbtest) and corresponding kernel logs are as following: [Run 1] ./testusb -a -c 10 -s 2048 -t 26 -v 511 usbtest 7-1:3.0: TEST 26: read 2048 bytes 10 times [Run 2] ./testusb -a -c 10 -s 1024 -t 25 -v 511 usbtest 7-1:3.0: TEST 25: write 1024 bytes 10 times [Run 3] ./testusb -a -c 10 -s 1098 -t 25 -v 511 usbtest 7-1:3.0: TEST 25: write 1098 bytes 10 times [Run 4 - Failure case scenario] ./testusb -a -t 26 unknown speed /dev/bus/usb/007/004 0 /dev/bus/usb/007/004 test 26 --> 75 (Value too large for defined data type) usbtest 7-1:3.0: TEST 26: read 512 bytes 1000 times usb 7-1: test26 failed, iterations left 999, status -75 (not 0) Signed-off-by: Amit Virdi Signed-off-by: Felipe Balbi --- drivers/usb/misc/usbtest.c | 113 +++++++++++++++++++++++++++++++++++++++------ 1 file changed, 98 insertions(+), 15 deletions(-) (limited to 'drivers/usb/misc/usbtest.c') diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index 829f446064ea..90e6644dc886 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -54,6 +54,7 @@ struct usbtest_info { unsigned autoconf:1; unsigned ctrl_out:1; unsigned iso:1; /* try iso in/out */ + unsigned intr:1; /* try interrupt in/out */ int alt; }; @@ -70,7 +71,10 @@ struct usbtest_dev { int out_pipe; int in_iso_pipe; int out_iso_pipe; + int in_int_pipe; + int out_int_pipe; struct usb_endpoint_descriptor *iso_in, *iso_out; + struct usb_endpoint_descriptor *int_in, *int_out; struct mutex lock; #define TBUF_SIZE 256 @@ -101,6 +105,7 @@ get_endpoints(struct usbtest_dev *dev, struct usb_interface *intf) struct usb_host_interface *alt; struct usb_host_endpoint *in, *out; struct usb_host_endpoint *iso_in, *iso_out; + struct usb_host_endpoint *int_in, *int_out; struct usb_device *udev; for (tmp = 0; tmp < intf->num_altsetting; tmp++) { @@ -108,6 +113,7 @@ get_endpoints(struct usbtest_dev *dev, struct usb_interface *intf) in = out = NULL; iso_in = iso_out = NULL; + int_in = int_out = NULL; alt = intf->altsetting + tmp; if (override_alt >= 0 && @@ -124,6 +130,9 @@ get_endpoints(struct usbtest_dev *dev, struct usb_interface *intf) switch (usb_endpoint_type(&e->desc)) { case USB_ENDPOINT_XFER_BULK: break; + case USB_ENDPOINT_XFER_INT: + if (dev->info->intr) + goto try_intr; case USB_ENDPOINT_XFER_ISOC: if (dev->info->iso) goto try_iso; @@ -139,6 +148,15 @@ get_endpoints(struct usbtest_dev *dev, struct usb_interface *intf) out = e; } continue; +try_intr: + if (usb_endpoint_dir_in(&e->desc)) { + if (!int_in) + int_in = e; + } else { + if (!int_out) + int_out = e; + } + continue; try_iso: if (usb_endpoint_dir_in(&e->desc)) { if (!iso_in) @@ -148,7 +166,7 @@ try_iso: iso_out = e; } } - if ((in && out) || iso_in || iso_out) + if ((in && out) || iso_in || iso_out || int_in || int_out) goto found; } return -EINVAL; @@ -183,6 +201,20 @@ found: iso_out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); } + + if (int_in) { + dev->int_in = &int_in->desc; + dev->in_int_pipe = usb_rcvintpipe(udev, + int_in->desc.bEndpointAddress + & USB_ENDPOINT_NUMBER_MASK); + } + + if (int_out) { + dev->int_out = &int_out->desc; + dev->out_int_pipe = usb_sndintpipe(udev, + int_out->desc.bEndpointAddress + & USB_ENDPOINT_NUMBER_MASK); + } return 0; } @@ -205,14 +237,22 @@ static struct urb *usbtest_alloc_urb( int pipe, unsigned long bytes, unsigned transfer_flags, - unsigned offset) + unsigned offset, + u8 bInterval) { struct urb *urb; urb = usb_alloc_urb(0, GFP_KERNEL); if (!urb) return urb; - usb_fill_bulk_urb(urb, udev, pipe, NULL, bytes, simple_callback, NULL); + + if (bInterval) + usb_fill_int_urb(urb, udev, pipe, NULL, bytes, simple_callback, + NULL, bInterval); + else + usb_fill_bulk_urb(urb, udev, pipe, NULL, bytes, simple_callback, + NULL); + urb->interval = (udev->speed == USB_SPEED_HIGH) ? (INTERRUPT_RATE << 3) : INTERRUPT_RATE; @@ -251,9 +291,11 @@ static struct urb *usbtest_alloc_urb( static struct urb *simple_alloc_urb( struct usb_device *udev, int pipe, - unsigned long bytes) + unsigned long bytes, + u8 bInterval) { - return usbtest_alloc_urb(udev, pipe, bytes, URB_NO_TRANSFER_DMA_MAP, 0); + return usbtest_alloc_urb(udev, pipe, bytes, URB_NO_TRANSFER_DMA_MAP, 0, + bInterval); } static unsigned pattern; @@ -1255,7 +1297,7 @@ test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param *param) goto cleanup; } req.wLength = cpu_to_le16(len); - urb[i] = u = simple_alloc_urb(udev, pipe, len); + urb[i] = u = simple_alloc_urb(udev, pipe, len, 0); if (!u) goto cleanup; @@ -1328,7 +1370,7 @@ static int unlink1(struct usbtest_dev *dev, int pipe, int size, int async) int retval = 0; init_completion(&completion); - urb = simple_alloc_urb(testdev_to_usbdev(dev), pipe, size); + urb = simple_alloc_urb(testdev_to_usbdev(dev), pipe, size, 0); if (!urb) return -ENOMEM; urb->context = &completion; @@ -1616,9 +1658,9 @@ static int halt_simple(struct usbtest_dev *dev) struct usb_device *udev = testdev_to_usbdev(dev); if (udev->speed == USB_SPEED_SUPER) - urb = simple_alloc_urb(udev, 0, 1024); + urb = simple_alloc_urb(udev, 0, 1024, 0); else - urb = simple_alloc_urb(udev, 0, 512); + urb = simple_alloc_urb(udev, 0, 512, 0); if (urb == NULL) return -ENOMEM; @@ -1962,7 +2004,7 @@ static int test_unaligned_bulk( { int retval; struct urb *urb = usbtest_alloc_urb( - testdev_to_usbdev(tdev), pipe, length, transfer_flags, 1); + testdev_to_usbdev(tdev), pipe, length, transfer_flags, 1, 0); if (!urb) return -ENOMEM; @@ -2068,7 +2110,7 @@ usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf) dev_info(&intf->dev, "TEST 1: write %d bytes %u times\n", param->length, param->iterations); - urb = simple_alloc_urb(udev, dev->out_pipe, param->length); + urb = simple_alloc_urb(udev, dev->out_pipe, param->length, 0); if (!urb) { retval = -ENOMEM; break; @@ -2083,7 +2125,7 @@ usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf) dev_info(&intf->dev, "TEST 2: read %d bytes %u times\n", param->length, param->iterations); - urb = simple_alloc_urb(udev, dev->in_pipe, param->length); + urb = simple_alloc_urb(udev, dev->in_pipe, param->length, 0); if (!urb) { retval = -ENOMEM; break; @@ -2098,7 +2140,7 @@ usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf) dev_info(&intf->dev, "TEST 3: write/%d 0..%d bytes %u times\n", param->vary, param->length, param->iterations); - urb = simple_alloc_urb(udev, dev->out_pipe, param->length); + urb = simple_alloc_urb(udev, dev->out_pipe, param->length, 0); if (!urb) { retval = -ENOMEM; break; @@ -2114,7 +2156,7 @@ usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf) dev_info(&intf->dev, "TEST 4: read/%d 0..%d bytes %u times\n", param->vary, param->length, param->iterations); - urb = simple_alloc_urb(udev, dev->in_pipe, param->length); + urb = simple_alloc_urb(udev, dev->in_pipe, param->length, 0); if (!urb) { retval = -ENOMEM; break; @@ -2411,6 +2453,39 @@ usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf) } break; + /* Simple non-queued interrupt I/O tests */ + case 25: + if (dev->out_int_pipe == 0) + break; + dev_info(&intf->dev, + "TEST 25: write %d bytes %u times\n", + param->length, param->iterations); + urb = simple_alloc_urb(udev, dev->out_int_pipe, param->length, + dev->int_out->bInterval); + if (!urb) { + retval = -ENOMEM; + break; + } + /* FIRMWARE: interrupt sink (maybe accepts short writes) */ + retval = simple_io(dev, urb, param->iterations, 0, 0, "test25"); + simple_free_urb(urb); + break; + case 26: + if (dev->in_int_pipe == 0) + break; + dev_info(&intf->dev, + "TEST 26: read %d bytes %u times\n", + param->length, param->iterations); + urb = simple_alloc_urb(udev, dev->in_int_pipe, param->length, + dev->int_in->bInterval); + if (!urb) { + retval = -ENOMEM; + break; + } + /* FIRMWARE: interrupt source (maybe generates short writes) */ + retval = simple_io(dev, urb, param->iterations, 0, 0, "test26"); + simple_free_urb(urb); + break; } do_gettimeofday(¶m->duration); param->duration.tv_sec -= start.tv_sec; @@ -2447,6 +2522,7 @@ usbtest_probe(struct usb_interface *intf, const struct usb_device_id *id) struct usbtest_info *info; char *rtest, *wtest; char *irtest, *iwtest; + char *intrtest, *intwtest; udev = interface_to_usbdev(intf); @@ -2487,6 +2563,7 @@ usbtest_probe(struct usb_interface *intf, const struct usb_device_id *id) */ rtest = wtest = ""; irtest = iwtest = ""; + intrtest = intwtest = ""; if (force_interrupt || udev->speed == USB_SPEED_LOW) { if (info->ep_in) { dev->in_pipe = usb_rcvintpipe(udev, info->ep_in); @@ -2525,15 +2602,20 @@ usbtest_probe(struct usb_interface *intf, const struct usb_device_id *id) irtest = " iso-in"; if (dev->out_iso_pipe) iwtest = " iso-out"; + if (dev->in_int_pipe) + intrtest = " int-in"; + if (dev->out_int_pipe) + intwtest = " int-out"; } usb_set_intfdata(intf, dev); dev_info(&intf->dev, "%s\n", info->name); - dev_info(&intf->dev, "%s {control%s%s%s%s%s} tests%s\n", + dev_info(&intf->dev, "%s {control%s%s%s%s%s%s%s} tests%s\n", usb_speed_string(udev->speed), info->ctrl_out ? " in/out" : "", rtest, wtest, irtest, iwtest, + intrtest, intwtest, info->alt >= 0 ? " (+alt)" : ""); return 0; } @@ -2607,6 +2689,7 @@ static struct usbtest_info gz_info = { .autoconf = 1, .ctrl_out = 1, .iso = 1, + .intr = 1, .alt = 0, }; -- cgit v1.2.3-70-g09d2 From 37ebb54915dc42944f6ae92fe53b9531c3903801 Mon Sep 17 00:00:00 2001 From: Petr Mladek Date: Fri, 19 Sep 2014 17:32:23 +0200 Subject: 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 Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- Documentation/DocBook/usb.tmpl | 2 +- Documentation/usb/WUSB-Design-overview.txt | 6 ++-- Documentation/usb/hotplug.txt | 2 +- drivers/net/usb/usbnet.c | 14 ++++++---- drivers/usb/README | 2 +- drivers/usb/core/hcd.c | 10 +++---- drivers/usb/core/hub.c | 44 +++++++++++++++--------------- drivers/usb/host/ehci-fsl.c | 2 +- drivers/usb/host/ehci-hcd.c | 2 +- drivers/usb/host/ehci-hub.c | 8 +++--- drivers/usb/host/fhci-hcd.c | 6 ++-- drivers/usb/host/fotg210-hcd.c | 8 +++--- drivers/usb/host/fusbh200-hcd.c | 8 +++--- drivers/usb/host/isp1760-hcd.c | 6 ++-- drivers/usb/host/ohci-hcd.c | 6 ++-- drivers/usb/host/ohci-hub.c | 4 +-- drivers/usb/host/ohci-omap.c | 2 +- drivers/usb/host/oxu210hp-hcd.c | 10 +++---- drivers/usb/host/sl811-hcd.c | 8 +++--- drivers/usb/host/xhci-hub.c | 2 +- drivers/usb/host/xhci.c | 4 +-- drivers/usb/misc/usbtest.c | 2 +- drivers/usb/musb/am35x.c | 1 + drivers/usb/musb/tusb6010.c | 2 +- drivers/usb/phy/phy-fsl-usb.c | 2 +- drivers/usb/phy/phy-isp1301-omap.c | 2 +- drivers/usb/wusbcore/devconnect.c | 6 ++-- drivers/usb/wusbcore/wa-hc.h | 2 +- sound/usb/midi.c | 2 +- 29 files changed, 89 insertions(+), 86 deletions(-) (limited to 'drivers/usb/misc/usbtest.c') diff --git a/Documentation/DocBook/usb.tmpl b/Documentation/DocBook/usb.tmpl index 85fc0e28576f..4cd5b2cd0f3d 100644 --- a/Documentation/DocBook/usb.tmpl +++ b/Documentation/DocBook/usb.tmpl @@ -593,7 +593,7 @@ for (;;) { Each device has one control endpoint (endpoint zero) which supports a limited RPC style RPC access. Devices are configured - by khubd (in the kernel) setting a device-wide + by hub_wq (in the kernel) setting a device-wide configuration that affects things like power consumption and basic functionality. The endpoints are part of USB interfaces, diff --git a/Documentation/usb/WUSB-Design-overview.txt b/Documentation/usb/WUSB-Design-overview.txt index 512238c3dc86..fdb47637720e 100644 --- a/Documentation/usb/WUSB-Design-overview.txt +++ b/Documentation/usb/WUSB-Design-overview.txt @@ -308,7 +308,7 @@ HC picks the /DN_Connect/ out (nep module sends to notif.c for delivery into /devconnect/). This process starts the authentication process for the device. First we allocate a /fake port/ and assign an unauthenticated address (128 to 255--what we really do is -0x80 | fake_port_idx). We fiddle with the fake port status and /khubd/ +0x80 | fake_port_idx). We fiddle with the fake port status and /hub_wq/ sees a new connection, so he moves on to enable the fake port with a reset. So now we are in the reset path -- we know we have a non-yet enumerated @@ -317,7 +317,7 @@ device with an unauthorized address; we ask user space to authenticate exchange (FIXME: not yet done) and issue a /set address 0/ to bring the device to the default state. Device is authenticated. -From here, the USB stack takes control through the usb_hcd ops. khubd +From here, the USB stack takes control through the usb_hcd ops. hub_wq has seen the port status changes, as we have been toggling them. It will start enumerating and doing transfers through usb_hcd->urb_enqueue() to read descriptors and move our data. @@ -331,7 +331,7 @@ Keep Alive IE; it responds with a /DN_Alive/ pong during the DNTS (this arrives to us as a notification through devconnect.c:wusb_handle_dn_alive(). If a device times out, we disconnect it from the system (cleaning up internal information and -toggling the bits in the fake hub port, which kicks khubd into removing +toggling the bits in the fake hub port, which kicks hub_wq into removing the rest of the stuff). This is done through devconnect:__wusb_check_devs(), which will scan the diff --git a/Documentation/usb/hotplug.txt b/Documentation/usb/hotplug.txt index a80b0e9a7a0b..5b243f315b2c 100644 --- a/Documentation/usb/hotplug.txt +++ b/Documentation/usb/hotplug.txt @@ -58,7 +58,7 @@ USB POLICY AGENT The USB subsystem currently invokes /sbin/hotplug when USB devices are added or removed from system. The invocation is done by the kernel -hub daemon thread [khubd], or else as part of root hub initialization +hub workqueue [hub_wq], or else as part of root hub initialization (done by init, modprobe, kapmd, etc). Its single command line parameter is the string "usb", and it passes these environment variables: diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index 5173821a9575..20615bbd693b 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -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: diff --git a/drivers/usb/README b/drivers/usb/README index 284f46b3e1cc..2144e7dbfa41 100644 --- a/drivers/usb/README +++ b/drivers/usb/README @@ -24,7 +24,7 @@ Here is a list of what each subdirectory here is, and what is contained in them. core/ - This is for the core USB host code, including the - usbfs files and the hub class driver ("khubd"). + usbfs files and the hub class driver ("hub_wq"). host/ - This is for USB host controller drivers. This includes UHCI, OHCI, EHCI, and others that might diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 761ccf02d7a0..d3fe161bec05 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -2301,7 +2301,7 @@ EXPORT_SYMBOL_GPL(usb_hcd_resume_root_hub); * Context: in_interrupt() * * Starts enumeration, with an immediate reset followed later by - * khubd identifying and possibly configuring the device. + * hub_wq identifying and possibly configuring the device. * This is needed by OTG controller drivers, where it helps meet * HNP protocol timing requirements for starting a port reset. * @@ -2320,7 +2320,7 @@ int usb_bus_start_enum(struct usb_bus *bus, unsigned port_num) if (port_num && hcd->driver->start_port_reset) status = hcd->driver->start_port_reset(hcd, port_num); - /* run khubd shortly after (first) root port reset finishes; + /* allocate hub_wq shortly after (first) root port reset finishes; * it may issue others, until at least 50 msecs have passed. */ if (status == 0) @@ -2383,7 +2383,7 @@ void usb_hc_died (struct usb_hcd *hcd) if (hcd->rh_registered) { clear_bit(HCD_FLAG_POLL_RH, &hcd->flags); - /* make khubd clean up old urbs and devices */ + /* make hub_wq clean up old urbs and devices */ usb_set_device_state (hcd->self.root_hub, USB_STATE_NOTATTACHED); usb_kick_hub_wq(hcd->self.root_hub); @@ -2393,7 +2393,7 @@ void usb_hc_died (struct usb_hcd *hcd) if (hcd->rh_registered) { clear_bit(HCD_FLAG_POLL_RH, &hcd->flags); - /* make khubd clean up old urbs and devices */ + /* make hub_wq clean up old urbs and devices */ usb_set_device_state(hcd->self.root_hub, USB_STATE_NOTATTACHED); usb_kick_hub_wq(hcd->self.root_hub); @@ -2655,7 +2655,7 @@ int usb_add_hcd(struct usb_hcd *hcd, set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); /* HC is in reset state, but accessible. Now do the one-time init, - * bottom up so that hcds can customize the root hubs before khubd + * bottom up so that hcds can customize the root hubs before hub_wq * starts talking to them. (Note, bus id is assigned early too.) */ if ((retval = hcd_buffer_create(hcd)) != 0) { diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 9b01ab2bbe7d..12a4c67667b1 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -652,7 +652,7 @@ static void hub_irq(struct urb *urb) hub->error = status; /* FALL THROUGH */ - /* let khubd handle things */ + /* let hub_wq handle things */ case 0: /* we got data: port status changed */ bits = 0; for (i = 0; i < urb->actual_length; ++i) @@ -664,7 +664,7 @@ static void hub_irq(struct urb *urb) hub->nerrors = 0; - /* Something happened, let khubd figure it out */ + /* Something happened, let hub_wq figure it out */ kick_hub_wq(hub); resubmit: @@ -695,7 +695,7 @@ hub_clear_tt_buffer (struct usb_device *hdev, u16 devinfo, u16 tt) } /* - * enumeration blocks khubd for a long time. we use keventd instead, since + * enumeration blocks hub_wq for a long time. we use keventd instead, since * long blocking there is the exception, not the rule. accordingly, HCDs * talking to TTs must queue control transfers (not just bulk and iso), so * both can talk to the same hub concurrently. @@ -961,7 +961,7 @@ static int hub_port_disable(struct usb_hub *hub, int port1, int set_state) /* * Disable a port and mark a logical connect-change event, so that some - * time later khubd will disconnect() any existing usb_device on the port + * time later hub_wq will disconnect() any existing usb_device on the port * and will re-enumerate if there actually is a device attached. */ static void hub_port_logical_disconnect(struct usb_hub *hub, int port1) @@ -974,7 +974,7 @@ static void hub_port_logical_disconnect(struct usb_hub *hub, int port1) * - SRP saves power that way * - ... new call, TBD ... * That's easy if this hub can switch power per-port, and - * khubd reactivates the port later (timer, SRP, etc). + * hub_wq reactivates the port later (timer, SRP, etc). * Powerdown must be optional, because of reset/DFU. */ @@ -987,7 +987,7 @@ static void hub_port_logical_disconnect(struct usb_hub *hub, int port1) * @udev: device to be disabled and removed * Context: @udev locked, must be able to sleep. * - * After @udev's port has been disabled, khubd is notified and it will + * After @udev's port has been disabled, hub_wq is notified and it will * see that the device has been disconnected. When the device is * physically unplugged and something is plugged in, the events will * be received and processed normally. @@ -1107,7 +1107,7 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) init2: /* - * Check each port and set hub->change_bits to let khubd know + * Check each port and set hub->change_bits to let hub_wq know * which ports need attention. */ for (port1 = 1; port1 <= hdev->maxchild; ++port1) { @@ -1174,7 +1174,7 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) clear_bit(port1, hub->removed_bits); if (!udev || udev->state == USB_STATE_NOTATTACHED) { - /* Tell khubd to disconnect the device or + /* Tell hub_wq to disconnect the device or * check for a new connection */ if (udev || (portstatus & USB_PORT_STAT_CONNECTION) || @@ -1187,7 +1187,7 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) USB_SS_PORT_LS_U0; /* The power session apparently survived the resume. * If there was an overcurrent or suspend change - * (i.e., remote wakeup request), have khubd + * (i.e., remote wakeup request), have hub_wq * take care of it. Look at the port link state * for USB 3.0 hubs, since they don't have a suspend * change bit, and they don't set the port link change @@ -1208,7 +1208,7 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) set_bit(port1, hub->change_bits); } else { - /* The power session is gone; tell khubd */ + /* The power session is gone; tell hub_wq */ usb_set_device_state(udev, USB_STATE_NOTATTACHED); set_bit(port1, hub->change_bits); } @@ -1216,10 +1216,10 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) /* If no port-status-change flags were set, we don't need any * debouncing. If flags were set we can try to debounce the - * ports all at once right now, instead of letting khubd do them + * ports all at once right now, instead of letting hub_wq do them * one at a time later on. * - * If any port-status changes do occur during this delay, khubd + * If any port-status changes do occur during this delay, hub_wq * will see them later and handle them normally. */ if (need_debounce_delay) { @@ -1280,7 +1280,7 @@ static void hub_quiesce(struct usb_hub *hub, enum hub_quiescing_type type) cancel_delayed_work_sync(&hub->init_work); - /* khubd and related activity won't re-trigger */ + /* hub_wq and related activity won't re-trigger */ hub->quiescing = 1; if (type != HUB_SUSPEND) { @@ -1291,7 +1291,7 @@ static void hub_quiesce(struct usb_hub *hub, enum hub_quiescing_type type) } } - /* Stop khubd and related activity */ + /* Stop hub_wq and related activity */ usb_kill_urb(hub->urb); if (hub->has_indicators) cancel_delayed_work_sync(&hub->leds); @@ -1613,7 +1613,7 @@ static int hub_configure(struct usb_hub *hub, if (ret < 0) goto fail; - /* Update the HCD's internal representation of this hub before khubd + /* Update the HCD's internal representation of this hub before hub_wq * starts getting port status changes for devices under the hub. */ if (hcd->driver->update_hub_device) { @@ -2045,7 +2045,7 @@ static void choose_devnum(struct usb_device *udev) int devnum; struct usb_bus *bus = udev->bus; - /* If khubd ever becomes multithreaded, this will need a lock */ + /* If hub_wq ever becomes multithreaded, this will need a lock */ if (udev->wusb) { devnum = udev->portnum + 1; BUG_ON(test_bit(devnum, bus->devmap.devicemap)); @@ -3074,7 +3074,7 @@ static unsigned wakeup_enabled_descendants(struct usb_device *udev) * Once VBUS drop breaks the circuit, the port it's using has to go through * normal re-enumeration procedures, starting with enabling VBUS power. * Other than re-initializing the hub (plug/unplug, except for root hubs), - * Linux (2.6) currently has NO mechanisms to initiate that: no khubd + * Linux (2.6) currently has NO mechanisms to initiate that: no hub_wq * timer, no SRP, no requests through sysfs. * * If Runtime PM isn't enabled or used, non-SuperSpeed devices may not get @@ -3216,7 +3216,7 @@ static int finish_port_resume(struct usb_device *udev) /* usb ch9 identifies four variants of SUSPENDED, based on what * state the device resumes to. Linux currently won't see the * first two on the host side; they'd be inside hub_port_init() - * during many timeouts, but khubd can't suspend until later. + * during many timeouts, but hub_wq can't suspend until later. */ usb_set_device_state(udev, udev->actconfig ? USB_STATE_CONFIGURED @@ -3581,7 +3581,7 @@ static int hub_suspend(struct usb_interface *intf, pm_message_t msg) dev_dbg(&intf->dev, "%s\n", __func__); - /* stop khubd and related activity */ + /* stop hub_wq and related activity */ hub_quiesce(hub, HUB_SUSPEND); return 0; } @@ -4977,10 +4977,10 @@ static void port_event(struct usb_hub *hub, int port1) * On disconnect USB3 protocol ports transit from U0 to * SS.Inactive to Rx.Detect. If this happens a warm- * reset is not needed, but a (re)connect may happen - * before khubd runs and sees the disconnect, and the + * before hub_wq runs and sees the disconnect, and the * device may be an unknown state. * - * If the port went through SS.Inactive without khubd + * If the port went through SS.Inactive without hub_wq * seeing it the C_LINK_STATE change flag will be set, * and we reset the dev to put it in a known state. */ @@ -5290,7 +5290,7 @@ static int descriptors_changed(struct usb_device *udev, * former operating configuration. If the reset fails, or the device's * descriptors change from their values before the reset, or the original * configuration and altsettings cannot be restored, a flag will be set - * telling khubd to pretend the device has been disconnected and then + * telling hub_wq to pretend the device has been disconnected and then * re-connected. All drivers will be unbound, and the device will be * re-enumerated and probed all over again. * diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index cf2734b532a7..3d84b6a41dae 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -627,7 +627,7 @@ static int ehci_start_port_reset(struct usb_hcd *hcd, unsigned port) 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 488a30836c36..15feaf924b71 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -788,7 +788,7 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) 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 6130b7574908..7ccb3ccf8e86 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -656,7 +656,7 @@ ehci_hub_status_data (struct usb_hcd *hcd, char *buf) /* * 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 @@ int ehci_hub_control( /* * 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 @@ int ehci_hub_control( * 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 @@ int ehci_hub_control( } /* - * 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 1cf68eaf2ed8..a1a1ef521436 100644 --- a/drivers/usb/host/fhci-hcd.c +++ b/drivers/usb/host/fhci-hcd.c @@ -360,12 +360,12 @@ static int fhci_start(struct usb_hcd *hcd) 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 adcd2050dced..3de1278677d0 100644 --- a/drivers/usb/host/fotg210-hcd.c +++ b/drivers/usb/host/fotg210-hcd.c @@ -1483,7 +1483,7 @@ fotg210_hub_status_data(struct usb_hcd *hcd, char *buf) /* * 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 @@ static int fotg210_hub_control( /* * 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 @@ static int fotg210_hub_control( } /* - * 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 @@ static irqreturn_t fotg210_irq(struct usb_hcd *hcd) 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 ba9499060f63..abe42f31559f 100644 --- a/drivers/usb/host/fusbh200-hcd.c +++ b/drivers/usb/host/fusbh200-hcd.c @@ -1441,7 +1441,7 @@ fusbh200_hub_status_data (struct usb_hcd *hcd, char *buf) /* * 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 @@ static int fusbh200_hub_control ( /* * 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 @@ static int fusbh200_hub_control ( } /* - * 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 @@ static irqreturn_t fusbh200_irq (struct usb_hcd *hcd) 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 51a0ae9cdd1d..e752c3098f38 100644 --- a/drivers/usb/host/isp1760-hcd.c +++ b/drivers/usb/host/isp1760-hcd.c @@ -1760,7 +1760,7 @@ static int isp1760_hub_status_data(struct usb_hcd *hcd, char *buf) /* * 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 @@ static int isp1760_hub_control(struct usb_hcd *hcd, u16 typeReq, /* * 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 @@ static int isp1760_hub_control(struct usb_hcd *hcd, u16 typeReq, 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 46987735a2e3..d664edabf14e 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -632,7 +632,7 @@ retry: 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 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd) * 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 17d32b0ea565..0aa17c937115 100644 --- a/drivers/usb/host/ohci-hub.c +++ b/drivers/usb/host/ohci-hub.c @@ -585,7 +585,7 @@ static int ohci_start_port_reset (struct usb_hcd *hcd, unsigned port) 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 @@ static int ohci_start_port_reset (struct usb_hcd *hcd, unsigned port) /* wrap-aware logic morphed from */ #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 c923cafcaca7..de9428362503 100644 --- a/drivers/usb/host/ohci-omap.c +++ b/drivers/usb/host/ohci-omap.c @@ -283,7 +283,7 @@ static int ohci_omap_reset(struct usb_hcd *hcd) 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 da5fb0e3c363..4fe79a2d71a9 100644 --- a/drivers/usb/host/oxu210hp-hcd.c +++ b/drivers/usb/host/oxu210hp-hcd.c @@ -2046,7 +2046,7 @@ static void intr_deschedule(struct oxu_hcd *oxu, struct ehci_qh *qh) /* 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 @@ static irqreturn_t oxu210_hcd_irq(struct usb_hcd *hcd) 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 @@ static int oxu_hub_status_data(struct usb_hcd *hcd, char *buf) /* * 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 @@ static int oxu_hub_control(struct usb_hcd *hcd, u16 typeReq, /* * 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 @@ static int oxu_hub_control(struct usb_hcd *hcd, u16 typeReq, } /* - * 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 a517151867af..ad0c348e68e9 100644 --- a/drivers/usb/host/sl811-hcd.c +++ b/drivers/usb/host/sl811-hcd.c @@ -674,7 +674,7 @@ retry: 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 @@ retry: #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 @@ sl811h_hub_status_data(struct usb_hcd *hcd, char *buf) 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 @@ sl811h_timer(unsigned long _sl811) 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 5e9f9bd02335..696160d48ae8 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -899,7 +899,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, /* * 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 6ad16483da54..a4b89b9d6641 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -3760,8 +3760,8 @@ disable_slot: /* * 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) diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index 90e6644dc886..0bbafe795a72 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -2031,7 +2031,7 @@ static int test_unaligned_bulk( * * WARNING: Because usbfs grabs udev->dev.sem before calling this ioctl(), * it locks out usbcore in certain code paths. Notably, if you disconnect - * the device-under-test, khubd will wait block forever waiting for the + * the device-under-test, hub_wq will wait block forever waiting for the * ioctl to complete ... so that usb_disconnect() can abort the pending * urbs and then call usbtest_disconnect(). To abort a test, you're best * off just killing the userspace task and waiting for it to exit. diff --git a/drivers/usb/musb/am35x.c b/drivers/usb/musb/am35x.c index 0a34dd859555..a2735df24cc6 100644 --- a/drivers/usb/musb/am35x.c +++ b/drivers/usb/musb/am35x.c @@ -1,3 +1,4 @@ + /* * Texas Instruments AM35x "glue layer" * diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c index 7dfc6cb732c9..2daa779f1382 100644 --- a/drivers/usb/musb/tusb6010.c +++ b/drivers/usb/musb/tusb6010.c @@ -433,7 +433,7 @@ static void musb_do_idle(unsigned long _musb) if (!musb->is_active) { u32 wakeups; - /* wait until khubd handles port change status */ + /* wait until hub_wq handles port change status */ if (is_host_active(musb) && (musb->port1_status >> 16)) goto done; diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c index 2b0f968d9325..f1ea5990a50a 100644 --- a/drivers/usb/phy/phy-fsl-usb.c +++ b/drivers/usb/phy/phy-fsl-usb.c @@ -609,7 +609,7 @@ static int fsl_otg_set_host(struct usb_otg *otg, struct usb_bus *host) otg->host->otg_port = fsl_otg_initdata.otg_port; otg->host->is_b_host = otg_dev->fsm.id; /* - * must leave time for khubd to finish its thing + * must leave time for hub_wq to finish its thing * before yanking the host driver out from under it, * so suspend the host after a short delay. */ diff --git a/drivers/usb/phy/phy-isp1301-omap.c b/drivers/usb/phy/phy-isp1301-omap.c index 69e49be8866b..8eea56d3ded6 100644 --- a/drivers/usb/phy/phy-isp1301-omap.c +++ b/drivers/usb/phy/phy-isp1301-omap.c @@ -1011,7 +1011,7 @@ static void isp_update_otg(struct isp1301 *isp, u8 stat) break; case OTG_STATE_A_WAIT_VFALL: state = OTG_STATE_A_IDLE; - /* khubd may take a while to notice and + /* hub_wq may take a while to notice and * handle this disconnect, so don't go * to B_IDLE quite yet. */ diff --git a/drivers/usb/wusbcore/devconnect.c b/drivers/usb/wusbcore/devconnect.c index 0677139c6065..3f4f5fbded55 100644 --- a/drivers/usb/wusbcore/devconnect.c +++ b/drivers/usb/wusbcore/devconnect.c @@ -329,7 +329,7 @@ void wusbhc_devconnect_ack(struct wusbhc *wusbhc, struct wusb_dn_connect *dnc, port->wusb_dev = wusb_dev; port->status |= USB_PORT_STAT_CONNECTION; port->change |= USB_PORT_STAT_C_CONNECTION; - /* Now the port status changed to connected; khubd will + /* Now the port status changed to connected; hub_wq will * pick the change up and try to reset the port to bring it to * the enabled state--so this process returns up to the stack * and it calls back into wusbhc_rh_port_reset(). @@ -343,7 +343,7 @@ error_unlock: /* * Disconnect a Wireless USB device from its fake port * - * Marks the port as disconnected so that khubd can pick up the change + * Marks the port as disconnected so that hub_wq can pick up the change * and drops our knowledge about the device. * * Assumes there is a device connected @@ -379,7 +379,7 @@ static void __wusbhc_dev_disconnect(struct wusbhc *wusbhc, wusbhc_gtk_rekey(wusbhc); /* The Wireless USB part has forgotten about the device already; now - * khubd's timer will pick up the disconnection and remove the USB + * hub_wq's timer will pick up the disconnection and remove the USB * device from the system */ } diff --git a/drivers/usb/wusbcore/wa-hc.h b/drivers/usb/wusbcore/wa-hc.h index f2a8d29e17b9..edc7267157f3 100644 --- a/drivers/usb/wusbcore/wa-hc.h +++ b/drivers/usb/wusbcore/wa-hc.h @@ -64,7 +64,7 @@ * * Note much of the activity is difficult to follow. For example a * device connect goes to devconnect, which will cause the "fake" root - * hub port to show a connect and stop there. Then khubd will notice + * hub port to show a connect and stop there. Then hub_wq will notice * and call into the rh.c:hwahc_rc_port_reset() code to authenticate * the device (and this might require user intervention) and enable * the port. diff --git a/sound/usb/midi.c b/sound/usb/midi.c index 7b166c2be0f7..b2b6f398a4e1 100644 --- a/sound/usb/midi.c +++ b/sound/usb/midi.c @@ -64,7 +64,7 @@ /* #define DUMP_PACKETS */ /* - * how long to wait after some USB errors, so that khubd can disconnect() us + * how long to wait after some USB errors, so that hub_wq can disconnect() us * without too many spurious errors */ #define ERROR_DELAY_JIFFIES (HZ / 10) -- cgit v1.2.3-70-g09d2