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author | Thomas Pugliese <thomas.pugliese@gmail.com> | 2013-09-26 15:49:40 (GMT) |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-09-26 23:27:20 (GMT) |
commit | 09d94cbd599e3b74b201d389d36cc260b67d318f (patch) | |
tree | d05cab5564e6dbf12eab86f82e99524ea8be4bf9 | |
parent | 8c9247a6b5e57d04e55d94ecbfd9e9d61c2a01e1 (diff) | |
download | linux-09d94cbd599e3b74b201d389d36cc260b67d318f.tar.xz |
usb: wusbcore: rename urb to tr_urb in struct wa_seg
Rename urb to tr_urb in struct wa_seg to make it clear that the urb is
used for the transfer request.
Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r-- | drivers/usb/wusbcore/wa-xfer.c | 30 |
1 files changed, 16 insertions, 14 deletions
diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c index cf10979..0b1cb65 100644 --- a/drivers/usb/wusbcore/wa-xfer.c +++ b/drivers/usb/wusbcore/wa-xfer.c @@ -114,8 +114,8 @@ static void wa_xfer_delayed_run(struct wa_rpipe *); * struct). */ struct wa_seg { - struct urb urb; - struct urb *dto_urb; /* for data output? */ + struct urb tr_urb; /* transfer request urb. */ + struct urb *dto_urb; /* for data output. */ struct list_head list_node; /* for rpipe->req_list */ struct wa_xfer *xfer; /* out xfer */ u8 index; /* which segment we are */ @@ -127,11 +127,11 @@ struct wa_seg { static inline void wa_seg_init(struct wa_seg *seg) { - usb_init_urb(&seg->urb); + usb_init_urb(&seg->tr_urb); /* set the remaining memory to 0. */ - memset(((void *)seg) + sizeof(seg->urb), 0, - sizeof(*seg) - sizeof(seg->urb)); + memset(((void *)seg) + sizeof(seg->tr_urb), 0, + sizeof(*seg) - sizeof(seg->tr_urb)); } /* @@ -179,7 +179,7 @@ static void wa_xfer_destroy(struct kref *_xfer) unsigned cnt; for (cnt = 0; cnt < xfer->segs; cnt++) { usb_free_urb(xfer->seg[cnt]->dto_urb); - usb_free_urb(&xfer->seg[cnt]->urb); + usb_free_urb(&xfer->seg[cnt]->tr_urb); } } kfree(xfer); @@ -494,12 +494,12 @@ static void __wa_xfer_setup_hdr0(struct wa_xfer *xfer, /* * Callback for the OUT data phase of the segment request * - * Check wa_seg_cb(); most comments also apply here because this + * Check wa_seg_tr_cb(); most comments also apply here because this * function does almost the same thing and they work closely * together. * * If the seg request has failed but this DTO phase has succeeded, - * wa_seg_cb() has already failed the segment and moved the + * wa_seg_tr_cb() has already failed the segment and moved the * status to WA_SEG_ERROR, so this will go through 'case 0' and * effectively do nothing. */ @@ -576,7 +576,7 @@ static void wa_seg_dto_cb(struct urb *urb) * as in that case, wa_seg_dto_cb will do it when the OUT data phase * finishes. */ -static void wa_seg_cb(struct urb *urb) +static void wa_seg_tr_cb(struct urb *urb) { struct wa_seg *seg = urb->context; struct wa_xfer *xfer = seg->xfer; @@ -740,11 +740,11 @@ static int __wa_xfer_setup_segs(struct wa_xfer *xfer, size_t xfer_hdr_size) wa_seg_init(seg); seg->xfer = xfer; seg->index = cnt; - usb_fill_bulk_urb(&seg->urb, usb_dev, + usb_fill_bulk_urb(&seg->tr_urb, usb_dev, usb_sndbulkpipe(usb_dev, dto_epd->bEndpointAddress), &seg->xfer_hdr, xfer_hdr_size, - wa_seg_cb, seg); + wa_seg_tr_cb, seg); buf_itr_size = min(buf_size, xfer->seg_size); if (xfer->is_inbound == 0 && buf_size > 0) { /* outbound data. */ @@ -888,12 +888,14 @@ static int __wa_seg_submit(struct wa_rpipe *rpipe, struct wa_xfer *xfer, struct wa_seg *seg) { int result; - result = usb_submit_urb(&seg->urb, GFP_ATOMIC); + /* submit the transfer request. */ + result = usb_submit_urb(&seg->tr_urb, GFP_ATOMIC); if (result < 0) { printk(KERN_ERR "xfer %p#%u: REQ submit failed: %d\n", xfer, seg->index, result); goto error_seg_submit; } + /* submit the out data if this is an out request. */ if (seg->dto_urb) { result = usb_submit_urb(seg->dto_urb, GFP_ATOMIC); if (result < 0) { @@ -907,7 +909,7 @@ static int __wa_seg_submit(struct wa_rpipe *rpipe, struct wa_xfer *xfer, return 0; error_dto_submit: - usb_unlink_urb(&seg->urb); + usb_unlink_urb(&seg->tr_urb); error_seg_submit: seg->status = WA_SEG_ERROR; seg->result = result; @@ -1313,7 +1315,7 @@ int wa_urb_dequeue(struct wahc *wa, struct urb *urb) break; case WA_SEG_SUBMITTED: seg->status = WA_SEG_ABORTED; - usb_unlink_urb(&seg->urb); + usb_unlink_urb(&seg->tr_urb); if (xfer->is_inbound == 0) usb_unlink_urb(seg->dto_urb); xfer->segs_done++; |