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 +- 3 files changed, 31 insertions(+), 31 deletions(-) (limited to 'drivers/usb/class') diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 5e1a253..0c2f14f 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 189141c..094c76b 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 93b5f85..2250095 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 */ -- cgit v1.1