diff --git a/drivers/bluetooth/bpa10x.c b/drivers/bluetooth/bpa10x.c
index fd6b53e9bbf2..a9932fe57d92 100644
--- a/drivers/bluetooth/bpa10x.c
+++ b/drivers/bluetooth/bpa10x.c
@@ -274,6 +274,8 @@ static int bpa10x_setup(struct hci_dev *hdev)
 
 	BT_INFO("%s: %s", hdev->name, (char *)(skb->data + 1));
 
+	hci_set_fw_info(hdev, "%s", skb->data + 1);
+
 	kfree_skb(skb);
 	return 0;
 }
diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c
index b7c3928cf494..d02f2c14df32 100644
--- a/drivers/bluetooth/btmrvl_sdio.c
+++ b/drivers/bluetooth/btmrvl_sdio.c
@@ -1625,6 +1625,7 @@ static int btmrvl_sdio_suspend(struct device *dev)
 	if (priv->adapter->hs_state != HS_ACTIVATED) {
 		if (btmrvl_enable_hs(priv)) {
 			BT_ERR("HS not actived, suspend failed!");
+			priv->adapter->is_suspending = false;
 			return -EBUSY;
 		}
 	}
diff --git a/drivers/bluetooth/btwilink.c b/drivers/bluetooth/btwilink.c
index 24a652f9252b..485281b3f167 100644
--- a/drivers/bluetooth/btwilink.c
+++ b/drivers/bluetooth/btwilink.c
@@ -51,7 +51,7 @@
  */
 struct ti_st {
 	struct hci_dev *hdev;
-	char reg_status;
+	int reg_status;
 	long (*st_write) (struct sk_buff *);
 	struct completion wait_reg_completion;
 };
@@ -83,7 +83,7 @@ static inline void ti_st_tx_complete(struct ti_st *hst, int pkt_type)
  * status.ti_st_open() function will wait for signal from this
  * API when st_register() function returns ST_PENDING.
  */
-static void st_reg_completion_cb(void *priv_data, char data)
+static void st_reg_completion_cb(void *priv_data, int data)
 {
 	struct ti_st *lhst = priv_data;
 
diff --git a/drivers/media/radio/wl128x/fmdrv_common.c b/drivers/media/radio/wl128x/fmdrv_common.c
index 3f9e6df7d837..642b89c66bcb 100644
--- a/drivers/media/radio/wl128x/fmdrv_common.c
+++ b/drivers/media/radio/wl128x/fmdrv_common.c
@@ -1472,7 +1472,7 @@ static long fm_st_receive(void *arg, struct sk_buff *skb)
  * Called by ST layer to indicate protocol registration completion
  * status.
  */
-static void fm_st_reg_comp_cb(void *arg, char data)
+static void fm_st_reg_comp_cb(void *arg, int data)
 {
 	struct fmdev *fmdev;
 
diff --git a/drivers/misc/ti-st/st_core.c b/drivers/misc/ti-st/st_core.c
index dcdbd58672cc..00051590e00f 100644
--- a/drivers/misc/ti-st/st_core.c
+++ b/drivers/misc/ti-st/st_core.c
@@ -141,7 +141,7 @@ static void st_send_frame(unsigned char chnl_id, struct st_data_s *st_gdata)
  * This function is being called with spin lock held, protocol drivers are
  * only expected to complete their waits and do nothing more than that.
  */
-static void st_reg_complete(struct st_data_s *st_gdata, char err)
+static void st_reg_complete(struct st_data_s *st_gdata, int err)
 {
 	unsigned char i = 0;
 	pr_info(" %s ", __func__);
diff --git a/drivers/nfc/nfcwilink.c b/drivers/nfc/nfcwilink.c
index f81e500e7650..3fbd18b8e473 100644
--- a/drivers/nfc/nfcwilink.c
+++ b/drivers/nfc/nfcwilink.c
@@ -94,7 +94,7 @@ struct nfcwilink {
 	struct nci_dev			*ndev;
 	unsigned long			flags;
 
-	char				st_register_cb_status;
+	int				st_register_cb_status;
 	long				(*st_write) (struct sk_buff *);
 
 	struct completion		completed;
@@ -320,7 +320,7 @@ static int nfcwilink_download_fw(struct nfcwilink *drv)
 }
 
 /* Called by ST when registration is complete */
-static void nfcwilink_register_complete(void *priv_data, char data)
+static void nfcwilink_register_complete(void *priv_data, int data)
 {
 	struct nfcwilink *drv = priv_data;
 
diff --git a/include/linux/ti_wilink_st.h b/include/linux/ti_wilink_st.h
index 0a0d56834c8e..f2293028ab9d 100644
--- a/include/linux/ti_wilink_st.h
+++ b/include/linux/ti_wilink_st.h
@@ -71,7 +71,7 @@ struct st_proto_s {
 	enum proto_type type;
 	long (*recv) (void *, struct sk_buff *);
 	unsigned char (*match_packet) (const unsigned char *data);
-	void (*reg_complete_cb) (void *, char data);
+	void (*reg_complete_cb) (void *, int data);
 	long (*write) (struct sk_buff *skb);
 	void *priv_data;
 
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 77d7fe115a0d..ee7fc47680a1 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -372,6 +372,8 @@ struct hci_dev {
 
 	atomic_t		promisc;
 
+	const char		*hw_info;
+	const char		*fw_info;
 	struct dentry		*debugfs;
 
 	struct device		dev;
@@ -1022,6 +1024,10 @@ void hci_unregister_dev(struct hci_dev *hdev);
 int hci_suspend_dev(struct hci_dev *hdev);
 int hci_resume_dev(struct hci_dev *hdev);
 int hci_reset_dev(struct hci_dev *hdev);
+int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
+int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
+void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
+void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
 int hci_dev_open(__u16 dev);
 int hci_dev_close(__u16 dev);
 int hci_dev_do_close(struct hci_dev *hdev);
@@ -1098,9 +1104,6 @@ int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
 
 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
 
-int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
-int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
-
 void hci_init_sysfs(struct hci_dev *hdev);
 void hci_conn_init_sysfs(struct hci_conn *conn);
 void hci_conn_add_sysfs(struct hci_conn *conn);
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 98f6c3770736..ddf8432fe8fb 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -3163,6 +3163,8 @@ void hci_unregister_dev(struct hci_dev *hdev)
 	device_del(&hdev->dev);
 
 	debugfs_remove_recursive(hdev->debugfs);
+	kfree_const(hdev->hw_info);
+	kfree_const(hdev->fw_info);
 
 	destroy_workqueue(hdev->workqueue);
 	destroy_workqueue(hdev->req_workqueue);
@@ -3266,6 +3268,28 @@ int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb)
 }
 EXPORT_SYMBOL(hci_recv_diag);
 
+void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...)
+{
+	va_list vargs;
+
+	va_start(vargs, fmt);
+	kfree_const(hdev->hw_info);
+	hdev->hw_info = kvasprintf_const(GFP_KERNEL, fmt, vargs);
+	va_end(vargs);
+}
+EXPORT_SYMBOL(hci_set_hw_info);
+
+void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...)
+{
+	va_list vargs;
+
+	va_start(vargs, fmt);
+	kfree_const(hdev->fw_info);
+	hdev->fw_info = kvasprintf_const(GFP_KERNEL, fmt, vargs);
+	va_end(vargs);
+}
+EXPORT_SYMBOL(hci_set_fw_info);
+
 /* ---- Interface to upper protocols ---- */
 
 int hci_register_cb(struct hci_cb *cb)
diff --git a/net/bluetooth/hci_debugfs.c b/net/bluetooth/hci_debugfs.c
index 7db4220941cc..63df63ebfb24 100644
--- a/net/bluetooth/hci_debugfs.c
+++ b/net/bluetooth/hci_debugfs.c
@@ -76,6 +76,30 @@ static const struct file_operations __name ## _fops = {			      \
 	.llseek		= default_llseek,				      \
 }									      \
 
+#define DEFINE_INFO_ATTRIBUTE(__name, __field)				      \
+static int __name ## _show(struct seq_file *f, void *ptr)		      \
+{									      \
+	struct hci_dev *hdev = f->private;				      \
+									      \
+	hci_dev_lock(hdev);						      \
+	seq_printf(f, "%s\n", hdev->__field ? : "");			      \
+	hci_dev_unlock(hdev);						      \
+									      \
+	return 0;							      \
+}									      \
+									      \
+static int __name ## _open(struct inode *inode, struct file *file)	      \
+{									      \
+	return single_open(file, __name ## _show, inode->i_private);	      \
+}									      \
+									      \
+static const struct file_operations __name ## _fops = {			      \
+	.open		= __name ## _open,				      \
+	.read		= seq_read,					      \
+	.llseek		= seq_lseek,					      \
+	.release	= single_release,				      \
+}									      \
+
 static int features_show(struct seq_file *f, void *ptr)
 {
 	struct hci_dev *hdev = f->private;
@@ -349,6 +373,9 @@ static const struct file_operations sc_only_mode_fops = {
 	.llseek		= default_llseek,
 };
 
+DEFINE_INFO_ATTRIBUTE(hardware_info, hw_info);
+DEFINE_INFO_ATTRIBUTE(firmware_info, fw_info);
+
 void hci_debugfs_create_common(struct hci_dev *hdev)
 {
 	debugfs_create_file("features", 0444, hdev->debugfs, hdev,
@@ -382,6 +409,14 @@ void hci_debugfs_create_common(struct hci_dev *hdev)
 	if (lmp_sc_capable(hdev) || lmp_le_capable(hdev))
 		debugfs_create_file("sc_only_mode", 0444, hdev->debugfs,
 				    hdev, &sc_only_mode_fops);
+
+	if (hdev->hw_info)
+		debugfs_create_file("hardware_info", 0444, hdev->debugfs,
+				    hdev, &hardware_info_fops);
+
+	if (hdev->fw_info)
+		debugfs_create_file("firmware_info", 0444, hdev->debugfs,
+				    hdev, &firmware_info_fops);
 }
 
 static int inquiry_cache_show(struct seq_file *f, void *p)
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 388ee8b59145..1842141baedb 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -927,7 +927,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
 			break;
 		}
 
-		if (get_user(opt, (u32 __user *) optval)) {
+		if (get_user(opt, (u16 __user *) optval)) {
 			err = -EFAULT;
 			break;
 		}