add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/usb/storage/uas.c
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@@ -279,17 +279,17 @@
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 	switch (response_code) {
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 	case RC_INCORRECT_LUN:
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-		cmnd->result = DID_BAD_TARGET << 16;
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+		set_host_byte(cmnd, DID_BAD_TARGET);
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 		break;
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 	case RC_TMF_SUCCEEDED:
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-		cmnd->result = DID_OK << 16;
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+		set_host_byte(cmnd, DID_OK);
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 		break;
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 	case RC_TMF_NOT_SUPPORTED:
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-		cmnd->result = DID_TARGET_FAILURE << 16;
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+		set_host_byte(cmnd, DID_TARGET_FAILURE);
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 		break;
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 	default:
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 		uas_log_cmd_state(cmnd, "response iu", response_code);
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-		cmnd->result = DID_ERROR << 16;
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+		set_host_byte(cmnd, DID_ERROR);
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 		break;
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 	}
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@@ -396,24 +396,18 @@
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 	struct scsi_cmnd *cmnd = urb->context;
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 	struct uas_cmd_info *cmdinfo = (void *)&cmnd->SCp;
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 	struct uas_dev_info *devinfo = (void *)cmnd->device->hostdata;
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-	struct scsi_data_buffer *sdb = NULL;
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+	struct scsi_data_buffer *sdb = &cmnd->sdb;
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 	unsigned long flags;
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 	int status = urb->status;
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 	spin_lock_irqsave(&devinfo->lock, flags);
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 	if (cmdinfo->data_in_urb == urb) {
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-		sdb = scsi_in(cmnd);
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 		cmdinfo->state &= ~DATA_IN_URB_INFLIGHT;
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 		cmdinfo->data_in_urb = NULL;
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 	} else if (cmdinfo->data_out_urb == urb) {
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-		sdb = scsi_out(cmnd);
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 		cmdinfo->state &= ~DATA_OUT_URB_INFLIGHT;
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 		cmdinfo->data_out_urb = NULL;
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-	}
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-	if (sdb == NULL) {
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-		WARN_ON_ONCE(1);
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-		goto out;
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 	}
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 	if (devinfo->resetting)
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@@ -429,9 +423,9 @@
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 		if (status != -ENOENT && status != -ECONNRESET && status != -ESHUTDOWN)
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 			uas_log_cmd_state(cmnd, "data cmplt err", status);
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 		/* error: no data transfered */
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-		sdb->resid = sdb->length;
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+		scsi_set_resid(cmnd, sdb->length);
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 	} else {
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-		sdb->resid = sdb->length - urb->actual_length;
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+		scsi_set_resid(cmnd, sdb->length - urb->actual_length);
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 	}
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 	uas_try_complete(cmnd, __func__);
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 out:
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@@ -454,8 +448,7 @@
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 	struct usb_device *udev = devinfo->udev;
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 	struct uas_cmd_info *cmdinfo = (void *)&cmnd->SCp;
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 	struct urb *urb = usb_alloc_urb(0, gfp);
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-	struct scsi_data_buffer *sdb = (dir == DMA_FROM_DEVICE)
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-		? scsi_in(cmnd) : scsi_out(cmnd);
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+	struct scsi_data_buffer *sdb = &cmnd->sdb;
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 	unsigned int pipe = (dir == DMA_FROM_DEVICE)
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 		? devinfo->data_in_pipe : devinfo->data_out_pipe;
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@@ -667,7 +660,7 @@
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 	spin_lock_irqsave(&devinfo->lock, flags);
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 	if (devinfo->resetting) {
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-		cmnd->result = DID_ERROR << 16;
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+		set_host_byte(cmnd, DID_ERROR);
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 		cmnd->scsi_done(cmnd);
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 		goto zombie;
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 	}
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@@ -694,7 +687,7 @@
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 		break;
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 	case DMA_BIDIRECTIONAL:
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 		cmdinfo->state |= ALLOC_DATA_IN_URB | SUBMIT_DATA_IN_URB;
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-		/* fall through */
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+		fallthrough;
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 	case DMA_TO_DEVICE:
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 		cmdinfo->state |= ALLOC_DATA_OUT_URB | SUBMIT_DATA_OUT_URB;
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 	case DMA_NONE:
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@@ -711,7 +704,7 @@
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 	 * of queueing, no matter how fatal the error
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 	 */
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 	if (err == -ENODEV) {
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-		cmnd->result = DID_ERROR << 16;
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+		set_host_byte(cmnd, DID_ERROR);
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 		cmnd->scsi_done(cmnd);
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 		goto zombie;
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 	}
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@@ -917,8 +910,8 @@
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 	.eh_abort_handler = uas_eh_abort_handler,
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 	.eh_device_reset_handler = uas_eh_device_reset_handler,
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 	.this_id = -1,
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-	.sg_tablesize = SG_NONE,
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 	.skip_settle_delay = 1,
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+	.dma_boundary = PAGE_SIZE - 1,
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 };
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 #define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
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@@ -1289,5 +1282,6 @@
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 module_exit(uas_exit);
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 MODULE_LICENSE("GPL");
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+MODULE_IMPORT_NS(USB_STORAGE);
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 MODULE_AUTHOR(
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 	"Hans de Goede <hdegoede@redhat.com>, Matthew Wilcox and Sarah Sharp");