From 2d75b9cbb1418f20ad1e688dd8312a029ef2e6b5 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Fri, 3 Oct 2014 12:08:56 +0200 Subject: [PATCH] uas: Reduce number of function arguments for uas_alloc_foo functions The stream_id and pipe are already present in uas_cmd_info resp uas_dev_info, so there is no need to pass a copy along. Signed-off-by: Hans de Goede Reviewed-by: Christoph Hellwig Signed-off-by: Greg Kroah-Hartman --- drivers/usb/storage/uas.c | 29 ++++++++++++++--------------- 1 file changed, 14 insertions(+), 15 deletions(-) diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index b27fe21d866d..d1dbe8833b4a 100644 --- a/drivers/usb/storage/uas.c +++ b/drivers/usb/storage/uas.c @@ -412,20 +412,22 @@ static void uas_cmd_cmplt(struct urb *urb) } static struct urb *uas_alloc_data_urb(struct uas_dev_info *devinfo, gfp_t gfp, - unsigned int pipe, u16 stream_id, struct scsi_cmnd *cmnd, enum dma_data_direction dir) { struct usb_device *udev = devinfo->udev; + struct uas_cmd_info *cmdinfo = (void *)&cmnd->SCp; struct urb *urb = usb_alloc_urb(0, gfp); struct scsi_data_buffer *sdb = (dir == DMA_FROM_DEVICE) ? scsi_in(cmnd) : scsi_out(cmnd); + unsigned int pipe = (dir == DMA_FROM_DEVICE) + ? devinfo->data_in_pipe : devinfo->data_out_pipe; if (!urb) goto out; usb_fill_bulk_urb(urb, udev, pipe, NULL, sdb->length, uas_data_cmplt, cmnd); - urb->stream_id = stream_id; + urb->stream_id = cmdinfo->stream; urb->num_sgs = udev->bus->sg_tablesize ? sdb->table.nents : 0; urb->sg = sdb->table.sgl; out: @@ -433,9 +435,10 @@ static struct urb *uas_alloc_data_urb(struct uas_dev_info *devinfo, gfp_t gfp, } static struct urb *uas_alloc_sense_urb(struct uas_dev_info *devinfo, gfp_t gfp, - struct Scsi_Host *shost, u16 stream_id) + struct scsi_cmnd *cmnd) { struct usb_device *udev = devinfo->udev; + struct uas_cmd_info *cmdinfo = (void *)&cmnd->SCp; struct urb *urb = usb_alloc_urb(0, gfp); struct sense_iu *iu; @@ -447,8 +450,8 @@ static struct urb *uas_alloc_sense_urb(struct uas_dev_info *devinfo, gfp_t gfp, goto free; usb_fill_bulk_urb(urb, udev, devinfo->status_pipe, iu, sizeof(*iu), - uas_stat_cmplt, shost); - urb->stream_id = stream_id; + uas_stat_cmplt, cmnd->device->host); + urb->stream_id = cmdinfo->stream; urb->transfer_flags |= URB_FREE_BUFFER; out: return urb; @@ -500,15 +503,13 @@ static struct urb *uas_alloc_cmd_urb(struct uas_dev_info *devinfo, gfp_t gfp, * daft to me. */ -static struct urb *uas_submit_sense_urb(struct scsi_cmnd *cmnd, - gfp_t gfp, unsigned int stream) +static struct urb *uas_submit_sense_urb(struct scsi_cmnd *cmnd, gfp_t gfp) { - struct Scsi_Host *shost = cmnd->device->host; - struct uas_dev_info *devinfo = (struct uas_dev_info *)shost->hostdata; + struct uas_dev_info *devinfo = cmnd->device->hostdata; struct urb *urb; int err; - urb = uas_alloc_sense_urb(devinfo, gfp, shost, stream); + urb = uas_alloc_sense_urb(devinfo, gfp, cmnd); if (!urb) return NULL; usb_anchor_urb(urb, &devinfo->sense_urbs); @@ -531,7 +532,7 @@ static int uas_submit_urbs(struct scsi_cmnd *cmnd, lockdep_assert_held(&devinfo->lock); if (cmdinfo->state & SUBMIT_STATUS_URB) { - urb = uas_submit_sense_urb(cmnd, gfp, cmdinfo->stream); + urb = uas_submit_sense_urb(cmnd, gfp); if (!urb) return SCSI_MLQUEUE_DEVICE_BUSY; cmdinfo->state &= ~SUBMIT_STATUS_URB; @@ -539,8 +540,7 @@ static int uas_submit_urbs(struct scsi_cmnd *cmnd, if (cmdinfo->state & ALLOC_DATA_IN_URB) { cmdinfo->data_in_urb = uas_alloc_data_urb(devinfo, gfp, - devinfo->data_in_pipe, cmdinfo->stream, - cmnd, DMA_FROM_DEVICE); + cmnd, DMA_FROM_DEVICE); if (!cmdinfo->data_in_urb) return SCSI_MLQUEUE_DEVICE_BUSY; cmdinfo->state &= ~ALLOC_DATA_IN_URB; @@ -560,8 +560,7 @@ static int uas_submit_urbs(struct scsi_cmnd *cmnd, if (cmdinfo->state & ALLOC_DATA_OUT_URB) { cmdinfo->data_out_urb = uas_alloc_data_urb(devinfo, gfp, - devinfo->data_out_pipe, cmdinfo->stream, - cmnd, DMA_TO_DEVICE); + cmnd, DMA_TO_DEVICE); if (!cmdinfo->data_out_urb) return SCSI_MLQUEUE_DEVICE_BUSY; cmdinfo->state &= ~ALLOC_DATA_OUT_URB; -- 2.34.1