From 997ea58eb92f9970b8af7aae48800d0ef43b9423 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Mon, 12 Apr 2010 13:17:25 +0200 Subject: USB: rename usb_buffer_alloc() and usb_buffer_free() users For more clearance what the functions actually do, usb_buffer_alloc() is renamed to usb_alloc_coherent() usb_buffer_free() is renamed to usb_free_coherent() They should only be used in code which really needs DMA coherency. All call sites have been changed accordingly, except for staging drivers. Signed-off-by: Daniel Mack Cc: Alan Stern Cc: Pedro Ribeiro Signed-off-by: Greg Kroah-Hartman --- drivers/usb/class/cdc-acm.c | 22 +++++++++++----------- drivers/usb/class/cdc-wdm.c | 38 +++++++++++++++++++------------------- drivers/usb/class/usblp.c | 2 +- drivers/usb/misc/appledisplay.c | 6 +++--- drivers/usb/misc/ftdi-elan.c | 18 +++++++++--------- drivers/usb/misc/iowarrior.c | 12 ++++++------ drivers/usb/misc/usblcd.c | 8 ++++---- drivers/usb/misc/usbtest.c | 8 ++++---- drivers/usb/storage/onetouch.c | 12 ++++++------ drivers/usb/storage/usb.c | 4 ++-- drivers/usb/usb-skeleton.c | 10 +++++----- 11 files changed, 70 insertions(+), 70 deletions(-) (limited to 'drivers/usb') diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 5e1a253b08a0..0c2f14ff9696 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -892,7 +892,7 @@ static void acm_write_buffers_free(struct acm *acm) struct usb_device *usb_dev = interface_to_usbdev(acm->control); for (wb = &acm->wb[0], i = 0; i < ACM_NW; i++, wb++) - usb_buffer_free(usb_dev, acm->writesize, wb->buf, wb->dmah); + usb_free_coherent(usb_dev, acm->writesize, wb->buf, wb->dmah); } static void acm_read_buffers_free(struct acm *acm) @@ -901,8 +901,8 @@ static void acm_read_buffers_free(struct acm *acm) int i, n = acm->rx_buflimit; for (i = 0; i < n; i++) - usb_buffer_free(usb_dev, acm->readsize, - acm->rb[i].base, acm->rb[i].dma); + usb_free_coherent(usb_dev, acm->readsize, + acm->rb[i].base, acm->rb[i].dma); } /* Little helper: write buffers allocate */ @@ -912,13 +912,13 @@ static int acm_write_buffers_alloc(struct acm *acm) struct acm_wb *wb; for (wb = &acm->wb[0], i = 0; i < ACM_NW; i++, wb++) { - wb->buf = usb_buffer_alloc(acm->dev, acm->writesize, GFP_KERNEL, + wb->buf = usb_alloc_coherent(acm->dev, acm->writesize, GFP_KERNEL, &wb->dmah); if (!wb->buf) { while (i != 0) { --i; --wb; - usb_buffer_free(acm->dev, acm->writesize, + usb_free_coherent(acm->dev, acm->writesize, wb->buf, wb->dmah); } return -ENOMEM; @@ -1177,7 +1177,7 @@ made_compressed_probe: tty_port_init(&acm->port); acm->port.ops = &acm_port_ops; - buf = usb_buffer_alloc(usb_dev, ctrlsize, GFP_KERNEL, &acm->ctrl_dma); + buf = usb_alloc_coherent(usb_dev, ctrlsize, GFP_KERNEL, &acm->ctrl_dma); if (!buf) { dev_dbg(&intf->dev, "out of memory (ctrl buffer alloc)\n"); goto alloc_fail2; @@ -1210,11 +1210,11 @@ made_compressed_probe: for (i = 0; i < num_rx_buf; i++) { struct acm_rb *rb = &(acm->rb[i]); - rb->base = usb_buffer_alloc(acm->dev, readsize, + rb->base = usb_alloc_coherent(acm->dev, readsize, GFP_KERNEL, &rb->dma); if (!rb->base) { dev_dbg(&intf->dev, - "out of memory (read bufs usb_buffer_alloc)\n"); + "out of memory (read bufs usb_alloc_coherent)\n"); goto alloc_fail7; } } @@ -1306,7 +1306,7 @@ alloc_fail7: alloc_fail5: acm_write_buffers_free(acm); alloc_fail4: - usb_buffer_free(usb_dev, ctrlsize, acm->ctrl_buffer, acm->ctrl_dma); + usb_free_coherent(usb_dev, ctrlsize, acm->ctrl_buffer, acm->ctrl_dma); alloc_fail2: kfree(acm); alloc_fail: @@ -1356,8 +1356,8 @@ static void acm_disconnect(struct usb_interface *intf) stop_data_traffic(acm); acm_write_buffers_free(acm); - usb_buffer_free(usb_dev, acm->ctrlsize, acm->ctrl_buffer, - acm->ctrl_dma); + usb_free_coherent(usb_dev, acm->ctrlsize, acm->ctrl_buffer, + acm->ctrl_dma); acm_read_buffers_free(acm); if (!acm->combined_interfaces) diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c index 189141ca4e05..094c76b5de17 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -276,14 +276,14 @@ static void free_urbs(struct wdm_device *desc) static void cleanup(struct wdm_device *desc) { - usb_buffer_free(interface_to_usbdev(desc->intf), - desc->wMaxPacketSize, - desc->sbuf, - desc->validity->transfer_dma); - usb_buffer_free(interface_to_usbdev(desc->intf), - desc->wMaxCommand, - desc->inbuf, - desc->response->transfer_dma); + usb_free_coherent(interface_to_usbdev(desc->intf), + desc->wMaxPacketSize, + desc->sbuf, + desc->validity->transfer_dma); + usb_free_coherent(interface_to_usbdev(desc->intf), + desc->wMaxCommand, + desc->inbuf, + desc->response->transfer_dma); kfree(desc->orq); kfree(desc->irq); kfree(desc->ubuf); @@ -705,17 +705,17 @@ next_desc: if (!desc->ubuf) goto err; - desc->sbuf = usb_buffer_alloc(interface_to_usbdev(intf), + desc->sbuf = usb_alloc_coherent(interface_to_usbdev(intf), desc->wMaxPacketSize, GFP_KERNEL, &desc->validity->transfer_dma); if (!desc->sbuf) goto err; - desc->inbuf = usb_buffer_alloc(interface_to_usbdev(intf), - desc->bMaxPacketSize0, - GFP_KERNEL, - &desc->response->transfer_dma); + desc->inbuf = usb_alloc_coherent(interface_to_usbdev(intf), + desc->bMaxPacketSize0, + GFP_KERNEL, + &desc->response->transfer_dma); if (!desc->inbuf) goto err2; @@ -742,15 +742,15 @@ out: return rv; err3: usb_set_intfdata(intf, NULL); - usb_buffer_free(interface_to_usbdev(desc->intf), - desc->bMaxPacketSize0, + usb_free_coherent(interface_to_usbdev(desc->intf), + desc->bMaxPacketSize0, desc->inbuf, desc->response->transfer_dma); err2: - usb_buffer_free(interface_to_usbdev(desc->intf), - desc->wMaxPacketSize, - desc->sbuf, - desc->validity->transfer_dma); + usb_free_coherent(interface_to_usbdev(desc->intf), + desc->wMaxPacketSize, + desc->sbuf, + desc->validity->transfer_dma); err: free_urbs(desc); kfree(desc->ubuf); diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c index 93b5f85d7ceb..2250095db0a0 100644 --- a/drivers/usb/class/usblp.c +++ b/drivers/usb/class/usblp.c @@ -27,7 +27,7 @@ * v0.11 - add proto_bias option (Pete Zaitcev) * v0.12 - add hpoj.sourceforge.net ioctls (David Paschal) * v0.13 - alloc space for statusbuf ( not on stack); - * use usb_buffer_alloc() for read buf & write buf; + * use usb_alloc_coherent() for read buf & write buf; * none - Maintained in Linux kernel after v0.13 */ diff --git a/drivers/usb/misc/appledisplay.c b/drivers/usb/misc/appledisplay.c index 094f91cbc578..1fa6ce3e4a23 100644 --- a/drivers/usb/misc/appledisplay.c +++ b/drivers/usb/misc/appledisplay.c @@ -259,7 +259,7 @@ static int appledisplay_probe(struct usb_interface *iface, } /* Allocate buffer for interrupt data */ - pdata->urbdata = usb_buffer_alloc(pdata->udev, ACD_URB_BUFFER_LEN, + pdata->urbdata = usb_alloc_coherent(pdata->udev, ACD_URB_BUFFER_LEN, GFP_KERNEL, &pdata->urb->transfer_dma); if (!pdata->urbdata) { retval = -ENOMEM; @@ -316,7 +316,7 @@ error: if (pdata->urb) { usb_kill_urb(pdata->urb); if (pdata->urbdata) - usb_buffer_free(pdata->udev, ACD_URB_BUFFER_LEN, + usb_free_coherent(pdata->udev, ACD_URB_BUFFER_LEN, pdata->urbdata, pdata->urb->transfer_dma); usb_free_urb(pdata->urb); } @@ -337,7 +337,7 @@ static void appledisplay_disconnect(struct usb_interface *iface) usb_kill_urb(pdata->urb); cancel_delayed_work(&pdata->work); backlight_device_unregister(pdata->bd); - usb_buffer_free(pdata->udev, ACD_URB_BUFFER_LEN, + usb_free_coherent(pdata->udev, ACD_URB_BUFFER_LEN, pdata->urbdata, pdata->urb->transfer_dma); usb_free_urb(pdata->urb); kfree(pdata->msgdata); diff --git a/drivers/usb/misc/ftdi-elan.c b/drivers/usb/misc/ftdi-elan.c index 2300a51d48b7..82e16630a78b 100644 --- a/drivers/usb/misc/ftdi-elan.c +++ b/drivers/usb/misc/ftdi-elan.c @@ -734,7 +734,7 @@ static void ftdi_elan_write_bulk_callback(struct urb *urb) dev_err(&ftdi->udev->dev, "urb=%p write bulk status received: %" "d\n", urb, status); } - usb_buffer_free(urb->dev, urb->transfer_buffer_length, + usb_free_coherent(urb->dev, urb->transfer_buffer_length, urb->transfer_buffer, urb->transfer_dma); } @@ -795,7 +795,7 @@ static int ftdi_elan_command_engine(struct usb_ftdi *ftdi) total_size); return -ENOMEM; } - buf = usb_buffer_alloc(ftdi->udev, total_size, GFP_KERNEL, + buf = usb_alloc_coherent(ftdi->udev, total_size, GFP_KERNEL, &urb->transfer_dma); if (!buf) { dev_err(&ftdi->udev->dev, "could not get a buffer to write %d c" @@ -829,7 +829,7 @@ static int ftdi_elan_command_engine(struct usb_ftdi *ftdi) dev_err(&ftdi->udev->dev, "failed %d to submit urb %p to write " "%d commands totaling %d bytes to the Uxxx\n", retval, urb, command_size, total_size); - usb_buffer_free(ftdi->udev, total_size, buf, urb->transfer_dma); + usb_free_coherent(ftdi->udev, total_size, buf, urb->transfer_dma); usb_free_urb(urb); return retval; } @@ -1167,7 +1167,7 @@ static ssize_t ftdi_elan_write(struct file *file, retval = -ENOMEM; goto error_1; } - buf = usb_buffer_alloc(ftdi->udev, count, GFP_KERNEL, + buf = usb_alloc_coherent(ftdi->udev, count, GFP_KERNEL, &urb->transfer_dma); if (!buf) { retval = -ENOMEM; @@ -1192,7 +1192,7 @@ static ssize_t ftdi_elan_write(struct file *file, exit: return count; error_3: - usb_buffer_free(ftdi->udev, count, buf, urb->transfer_dma); + usb_free_coherent(ftdi->udev, count, buf, urb->transfer_dma); error_2: usb_free_urb(urb); error_1: @@ -1968,7 +1968,7 @@ static int ftdi_elan_synchronize_flush(struct usb_ftdi *ftdi) "ence\n"); return -ENOMEM; } - buf = usb_buffer_alloc(ftdi->udev, I, GFP_KERNEL, &urb->transfer_dma); + buf = usb_alloc_coherent(ftdi->udev, I, GFP_KERNEL, &urb->transfer_dma); if (!buf) { dev_err(&ftdi->udev->dev, "could not get a buffer for flush seq" "uence\n"); @@ -1985,7 +1985,7 @@ static int ftdi_elan_synchronize_flush(struct usb_ftdi *ftdi) if (retval) { dev_err(&ftdi->udev->dev, "failed to submit urb containing the " "flush sequence\n"); - usb_buffer_free(ftdi->udev, i, buf, urb->transfer_dma); + usb_free_coherent(ftdi->udev, i, buf, urb->transfer_dma); usb_free_urb(urb); return -ENOMEM; } @@ -2011,7 +2011,7 @@ static int ftdi_elan_synchronize_reset(struct usb_ftdi *ftdi) "quence\n"); return -ENOMEM; } - buf = usb_buffer_alloc(ftdi->udev, I, GFP_KERNEL, &urb->transfer_dma); + buf = usb_alloc_coherent(ftdi->udev, I, GFP_KERNEL, &urb->transfer_dma); if (!buf) { dev_err(&ftdi->udev->dev, "could not get a buffer for the reset" " sequence\n"); @@ -2030,7 +2030,7 @@ static int ftdi_elan_synchronize_reset(struct usb_ftdi *ftdi) if (retval) { dev_err(&ftdi->udev->dev, "failed to submit urb containing the " "reset sequence\n"); - usb_buffer_free(ftdi->udev, i, buf, urb->transfer_dma); + usb_free_coherent(ftdi->udev, i, buf, urb->transfer_dma); usb_free_urb(urb); return -ENOMEM; } diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c index d3c852363883..7dc9d3c69984 100644 --- a/drivers/usb/misc/iowarrior.c +++ b/drivers/usb/misc/iowarrior.c @@ -239,8 +239,8 @@ static void iowarrior_write_callback(struct urb *urb) __func__, status); } /* free up our allocated buffer */ - usb_buffer_free(urb->dev, urb->transfer_buffer_length, - urb->transfer_buffer, urb->transfer_dma); + usb_free_coherent(urb->dev, urb->transfer_buffer_length, + urb->transfer_buffer, urb->transfer_dma); /* tell a waiting writer the interrupt-out-pipe is available again */ atomic_dec(&dev->write_busy); wake_up_interruptible(&dev->write_wait); @@ -421,8 +421,8 @@ static ssize_t iowarrior_write(struct file *file, dbg("%s Unable to allocate urb ", __func__); goto error_no_urb; } - buf = usb_buffer_alloc(dev->udev, dev->report_size, - GFP_KERNEL, &int_out_urb->transfer_dma); + buf = usb_alloc_coherent(dev->udev, dev->report_size, + GFP_KERNEL, &int_out_urb->transfer_dma); if (!buf) { retval = -ENOMEM; dbg("%s Unable to allocate buffer ", __func__); @@ -459,8 +459,8 @@ static ssize_t iowarrior_write(struct file *file, break; } error: - usb_buffer_free(dev->udev, dev->report_size, buf, - int_out_urb->transfer_dma); + usb_free_coherent(dev->udev, dev->report_size, buf, + int_out_urb->transfer_dma); error_no_buffer: usb_free_urb(int_out_urb); error_no_urb: diff --git a/drivers/usb/misc/usblcd.c b/drivers/usb/misc/usblcd.c index 90aede90553e..7828c764b323 100644 --- a/drivers/usb/misc/usblcd.c +++ b/drivers/usb/misc/usblcd.c @@ -205,8 +205,8 @@ static void lcd_write_bulk_callback(struct urb *urb) } /* free up our allocated buffer */ - usb_buffer_free(urb->dev, urb->transfer_buffer_length, - urb->transfer_buffer, urb->transfer_dma); + usb_free_coherent(urb->dev, urb->transfer_buffer_length, + urb->transfer_buffer, urb->transfer_dma); up(&dev->limit_sem); } @@ -234,7 +234,7 @@ static ssize_t lcd_write(struct file *file, const char __user * user_buffer, siz goto err_no_buf; } - buf = usb_buffer_alloc(dev->udev, count, GFP_KERNEL, &urb->transfer_dma); + buf = usb_alloc_coherent(dev->udev, count, GFP_KERNEL, &urb->transfer_dma); if (!buf) { retval = -ENOMEM; goto error; @@ -268,7 +268,7 @@ exit: error_unanchor: usb_unanchor_urb(urb); error: - usb_buffer_free(dev->udev, count, buf, urb->transfer_dma); + usb_free_coherent(dev->udev, count, buf, urb->transfer_dma); usb_free_urb(urb); err_no_buf: up(&dev->limit_sem); diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index 9dcc82337ced..16dffe99d9f1 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -202,7 +202,7 @@ static struct urb *simple_alloc_urb ( urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; if (usb_pipein (pipe)) urb->transfer_flags |= URB_SHORT_NOT_OK; - urb->transfer_buffer = usb_buffer_alloc (udev, bytes, GFP_KERNEL, + urb->transfer_buffer = usb_alloc_coherent (udev, bytes, GFP_KERNEL, &urb->transfer_dma); if (!urb->transfer_buffer) { usb_free_urb (urb); @@ -272,8 +272,8 @@ static inline int simple_check_buf(struct usbtest_dev *tdev, struct urb *urb) static void simple_free_urb (struct urb *urb) { - usb_buffer_free (urb->dev, urb->transfer_buffer_length, - urb->transfer_buffer, urb->transfer_dma); + usb_free_coherent(urb->dev, urb->transfer_buffer_length, + urb->transfer_buffer, urb->transfer_dma); usb_free_urb (urb); } @@ -1416,7 +1416,7 @@ static struct urb *iso_alloc_urb ( urb->number_of_packets = packets; urb->transfer_buffer_length = bytes; - urb->transfer_buffer = usb_buffer_alloc (udev, bytes, GFP_KERNEL, + urb->transfer_buffer = usb_alloc_coherent (udev, bytes, GFP_KERNEL, &urb->transfer_dma); if (!urb->transfer_buffer) { usb_free_urb (urb); diff --git a/drivers/usb/storage/onetouch.c b/drivers/usb/storage/onetouch.c index 198bb3ed95b2..1943be5a2914 100644 --- a/drivers/usb/storage/onetouch.c +++ b/drivers/usb/storage/onetouch.c @@ -201,8 +201,8 @@ static int onetouch_connect_input(struct us_data *ss) if (!onetouch || !input_dev) goto fail1; - onetouch->data = usb_buffer_alloc(udev, ONETOUCH_PKT_LEN, - GFP_KERNEL, &onetouch->data_dma); + onetouch->data = usb_alloc_coherent(udev, ONETOUCH_PKT_LEN, + GFP_KERNEL, &onetouch->data_dma); if (!onetouch->data) goto fail1; @@ -264,8 +264,8 @@ static int onetouch_connect_input(struct us_data *ss) return 0; fail3: usb_free_urb(onetouch->irq); - fail2: usb_buffer_free(udev, ONETOUCH_PKT_LEN, - onetouch->data, onetouch->data_dma); + fail2: usb_free_coherent(udev, ONETOUCH_PKT_LEN, + onetouch->data, onetouch->data_dma); fail1: kfree(onetouch); input_free_device(input_dev); return error; @@ -279,8 +279,8 @@ static void onetouch_release_input(void *onetouch_) usb_kill_urb(onetouch->irq); input_unregister_device(onetouch->dev); usb_free_urb(onetouch->irq); - usb_buffer_free(onetouch->udev, ONETOUCH_PKT_LEN, - onetouch->data, onetouch->data_dma); + usb_free_coherent(onetouch->udev, ONETOUCH_PKT_LEN, + onetouch->data, onetouch->data_dma); } } diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c index c54a370c76c5..e2798ef2dd19 100644 --- a/drivers/usb/storage/usb.c +++ b/drivers/usb/storage/usb.c @@ -414,7 +414,7 @@ static int associate_dev(struct us_data *us, struct usb_interface *intf) return -ENOMEM; } - us->iobuf = usb_buffer_alloc(us->pusb_dev, US_IOBUF_SIZE, + us->iobuf = usb_alloc_coherent(us->pusb_dev, US_IOBUF_SIZE, GFP_KERNEL, &us->iobuf_dma); if (!us->iobuf) { US_DEBUGP("I/O buffer allocation failed\n"); @@ -758,7 +758,7 @@ static void dissociate_dev(struct us_data *us) /* Free the buffers */ kfree(us->cr); - usb_buffer_free(us->pusb_dev, US_IOBUF_SIZE, us->iobuf, us->iobuf_dma); + usb_free_coherent(us->pusb_dev, US_IOBUF_SIZE, us->iobuf, us->iobuf_dma); /* Remove our private data from the interface */ usb_set_intfdata(us->pusb_intf, NULL); diff --git a/drivers/usb/usb-skeleton.c b/drivers/usb/usb-skeleton.c index 61522787f39c..d110588b56f1 100644 --- a/drivers/usb/usb-skeleton.c +++ b/drivers/usb/usb-skeleton.c @@ -387,8 +387,8 @@ static void skel_write_bulk_callback(struct urb *urb) } /* free up our allocated buffer */ - usb_buffer_free(urb->dev, urb->transfer_buffer_length, - urb->transfer_buffer, urb->transfer_dma); + usb_free_coherent(urb->dev, urb->transfer_buffer_length, + urb->transfer_buffer, urb->transfer_dma); up(&dev->limit_sem); } @@ -442,8 +442,8 @@ static ssize_t skel_write(struct file *file, const char *user_buffer, goto error; } - buf = usb_buffer_alloc(dev->udev, writesize, GFP_KERNEL, - &urb->transfer_dma); + buf = usb_alloc_coherent(dev->udev, writesize, GFP_KERNEL, + &urb->transfer_dma); if (!buf) { retval = -ENOMEM; goto error; @@ -491,7 +491,7 @@ error_unanchor: usb_unanchor_urb(urb); error: if (urb) { - usb_buffer_free(dev->udev, writesize, buf, urb->transfer_dma); + usb_free_coherent(dev->udev, writesize, buf, urb->transfer_dma); usb_free_urb(urb); } up(&dev->limit_sem); -- cgit v1.2.3