Update Linux to v5.10.109

Sourced from [1]

[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz

Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
index bfec84a..6dac58a 100644
--- a/drivers/scsi/virtio_scsi.c
+++ b/drivers/scsi/virtio_scsi.c
@@ -100,7 +100,7 @@
 		scsi_set_resid(sc, resid);
 }
 
-/**
+/*
  * virtscsi_complete_cmd - finish a scsi_cmd and invoke scsi_done
  *
  * Called with vq_lock held.
@@ -148,7 +148,7 @@
 	default:
 		scmd_printk(KERN_WARNING, sc, "Unknown response %d",
 			    resp->response);
-		/* fall through */
+		fallthrough;
 	case VIRTIO_SCSI_S_FAILURE:
 		set_host_byte(sc, DID_ERROR);
 		break;
@@ -284,7 +284,12 @@
 
 	switch (virtio32_to_cpu(vscsi->vdev, event->reason)) {
 	case VIRTIO_SCSI_EVT_RESET_RESCAN:
-		scsi_add_device(shost, 0, target, lun);
+		if (lun == 0) {
+			scsi_scan_target(&shost->shost_gendev, 0, target,
+					 SCAN_WILD_CARD, SCSI_SCAN_INITIAL);
+		} else {
+			scsi_add_device(shost, 0, target, lun);
+		}
 		break;
 	case VIRTIO_SCSI_EVT_RESET_REMOVED:
 		sdev = scsi_device_lookup(shost, 0, target, lun);
@@ -297,7 +302,7 @@
 		}
 		break;
 	default:
-		pr_info("Unsupport virtio scsi event reason %x\n", event->reason);
+		pr_info("Unsupported virtio scsi event reason %x\n", event->reason);
 	}
 }
 
@@ -350,6 +355,14 @@
 		if (result == 0 && inq_result[0] >> 5) {
 			/* PQ indicates the LUN is not attached */
 			scsi_remove_device(sdev);
+		} else if (host_byte(result) == DID_BAD_TARGET) {
+			/*
+			 * If all LUNs of a virtio-scsi device are unplugged
+			 * it will respond with BAD TARGET on any INQUIRY
+			 * command.
+			 * Remove the device in this case as well.
+			 */
+			scsi_remove_device(sdev);
 		}
 	}
 
@@ -381,7 +394,7 @@
 		virtscsi_handle_param_change(vscsi, event);
 		break;
 	default:
-		pr_err("Unsupport virtio scsi event %x\n", event->event);
+		pr_err("Unsupported virtio scsi event %x\n", event->event);
 	}
 	virtscsi_kick_event(vscsi, event_node);
 }
@@ -742,19 +755,18 @@
 	.dma_boundary = UINT_MAX,
 	.map_queues = virtscsi_map_queues,
 	.track_queue_depth = 1,
-	.force_blk_mq = 1,
 };
 
 #define virtscsi_config_get(vdev, fld) \
 	({ \
-		typeof(((struct virtio_scsi_config *)0)->fld) __val; \
+		__virtio_native_type(struct virtio_scsi_config, fld) __val; \
 		virtio_cread(vdev, struct virtio_scsi_config, fld, &__val); \
 		__val; \
 	})
 
 #define virtscsi_config_set(vdev, fld, val) \
 	do { \
-		typeof(((struct virtio_scsi_config *)0)->fld) __val = (val); \
+		__virtio_native_type(struct virtio_scsi_config, fld) __val = (val); \
 		virtio_cwrite(vdev, struct virtio_scsi_config, fld, &__val); \
 	} while(0)
 
@@ -1003,14 +1015,10 @@
 	return 0;
 
 error:
-	if (virtscsi_cmd_pool) {
-		mempool_destroy(virtscsi_cmd_pool);
-		virtscsi_cmd_pool = NULL;
-	}
-	if (virtscsi_cmd_cache) {
-		kmem_cache_destroy(virtscsi_cmd_cache);
-		virtscsi_cmd_cache = NULL;
-	}
+	mempool_destroy(virtscsi_cmd_pool);
+	virtscsi_cmd_pool = NULL;
+	kmem_cache_destroy(virtscsi_cmd_cache);
+	virtscsi_cmd_cache = NULL;
 	return ret;
 }