From patchwork Wed Jul 24 08:50:39 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?Q2h1bmZlbmcgWXVuICjkupHmmKXls7Ap?= X-Patchwork-Id: 11056375 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B67F1112C for ; Wed, 24 Jul 2019 08:51:36 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A7D16285B8 for ; Wed, 24 Jul 2019 08:51:36 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9C060287A2; Wed, 24 Jul 2019 08:51:36 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 32B68285B8 for ; Wed, 24 Jul 2019 08:51:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726762AbfGXIvf (ORCPT ); Wed, 24 Jul 2019 04:51:35 -0400 Received: from Mailgw01.mediatek.com ([1.203.163.78]:43126 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726715AbfGXIve (ORCPT ); Wed, 24 Jul 2019 04:51:34 -0400 X-UUID: 57d77b7234b1462abba4892b17c84d19-20190724 X-UUID: 57d77b7234b1462abba4892b17c84d19-20190724 Received: from mtkcas32.mediatek.inc [(172.27.4.253)] by mailgw01.mediatek.com (envelope-from ) (mailgw01.mediatek.com ESMTP with TLS) with ESMTP id 2070976000; Wed, 24 Jul 2019 16:51:22 +0800 Received: from mtkcas08.mediatek.inc (172.21.101.126) by MTKMBS31N2.mediatek.inc (172.27.4.87) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Wed, 24 Jul 2019 16:51:20 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas08.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Wed, 24 Jul 2019 16:51:18 +0800 From: Chunfeng Yun To: Rob Herring , Greg Kroah-Hartman , Biju Das CC: Mark Rutland , Chunfeng Yun , Matthias Brugger , Adam Thomson , Li Jun , Badhri Jagan Sridharan , Heikki Krogerus , Hans de Goede , Andy Shevchenko , Min Guo , , , , , , Linus Walleij , Yu Chen , John Stultz Subject: [PATCH v8 05/11] usb: roles: Introduce stubs for the exiting functions in role.h. Date: Wed, 24 Jul 2019 16:50:39 +0800 Message-ID: <1563958245-6321-6-git-send-email-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 1.8.1.1.dirty In-Reply-To: <1563958245-6321-1-git-send-email-chunfeng.yun@mediatek.com> References: <1563958245-6321-1-git-send-email-chunfeng.yun@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: 0A03B8C42A1FEAEDB5F8C795DD2FFD12545438AC222F3765B543F9DBE07210DD2000:8 X-MTK: N Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Yu Chen This patch adds stubs for the exiting functions while CONFIG_USB_ROLE_SWITCH does not enabled. Cc: Greg Kroah-Hartman Cc: Heikki Krogerus Cc: Hans de Goede Cc: Andy Shevchenko Cc: John Stultz Reviewed-by: Heikki Krogerus Signed-off-by: Yu Chen Signed-off-by: Chunfeng Yun --- v8: no changes v7: add Signed-off-by Chunfeng v6: merge this patch [1] into this series to add new API [1] https://patchwork.kernel.org/patch/10909971/ --- include/linux/usb/role.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/include/linux/usb/role.h b/include/linux/usb/role.h index c05ffa6abda9..da2b9641b877 100644 --- a/include/linux/usb/role.h +++ b/include/linux/usb/role.h @@ -42,6 +42,8 @@ struct usb_role_switch_desc { bool allow_userspace_control; }; + +#if IS_ENABLED(CONFIG_USB_ROLE_SWITCH) int usb_role_switch_set_role(struct usb_role_switch *sw, enum usb_role role); enum usb_role usb_role_switch_get_role(struct usb_role_switch *sw); struct usb_role_switch *usb_role_switch_get(struct device *dev); @@ -51,5 +53,33 @@ struct usb_role_switch * usb_role_switch_register(struct device *parent, const struct usb_role_switch_desc *desc); void usb_role_switch_unregister(struct usb_role_switch *sw); +#else +static inline int usb_role_switch_set_role(struct usb_role_switch *sw, + enum usb_role role) +{ + return 0; +} + +static inline enum usb_role usb_role_switch_get_role(struct usb_role_switch *sw) +{ + return USB_ROLE_NONE; +} + +static inline struct usb_role_switch *usb_role_switch_get(struct device *dev) +{ + return ERR_PTR(-ENODEV); +} + +static inline void usb_role_switch_put(struct usb_role_switch *sw) { } + +static inline struct usb_role_switch * +usb_role_switch_register(struct device *parent, + const struct usb_role_switch_desc *desc) +{ + return ERR_PTR(-ENODEV); +} + +static inline void usb_role_switch_unregister(struct usb_role_switch *sw) { } +#endif #endif /* __LINUX_USB_ROLE_H */