linux-kernel - [PATCH 5.16 101/200] usb: roles: fix include/linux/usb/role.h compile issue

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Date:   Mon, 31 Jan 2022 11:56:04 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Linyu Yuan <quic_linyyuan@...cinc.com>
Subject: [PATCH 5.16 101/200] usb: roles: fix include/linux/usb/role.h compile issue

From: Linyu Yuan <quic_linyyuan@...cinc.com>

commit 945c37ed564770c78dfe6b9f08bed57a1b4e60ef upstream.

when CONFIG_USB_ROLE_SWITCH is not defined,
add usb_role_switch_find_by_fwnode() definition which return NULL.

Fixes: c6919d5e0cd1 ("usb: roles: Add usb_role_switch_find_by_fwnode()")
Signed-off-by: Linyu Yuan <quic_linyyuan@...cinc.com>
Link: https://lore.kernel.org/r/1641818608-25039-1-git-send-email-quic_linyyuan@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 include/linux/usb/role.h |    6 ++++++
 1 file changed, 6 insertions(+)

--- a/include/linux/usb/role.h
+++ b/include/linux/usb/role.h
@@ -92,6 +92,12 @@ fwnode_usb_role_switch_get(struct fwnode
 static inline void usb_role_switch_put(struct usb_role_switch *sw) { }
 
 static inline struct usb_role_switch *
+usb_role_switch_find_by_fwnode(const struct fwnode_handle *fwnode)
+{
+	return NULL;
+}
+
+static inline struct usb_role_switch *
 usb_role_switch_register(struct device *parent,
 			 const struct usb_role_switch_desc *desc)
 {