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dkim=none (message not signed) header.d=none;vger.kernel.org; dmarc=none action=none header.from=nxp.com; Received: from AM6PR04MB4966.eurprd04.prod.outlook.com (2603:10a6:20b:2::14) by AM6PR04MB5285.eurprd04.prod.outlook.com (2603:10a6:20b:3::25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3477.24; Fri, 30 Oct 2020 15:55:37 +0000 Received: from AM6PR04MB4966.eurprd04.prod.outlook.com ([fe80::546f:92f0:f3c5:a148]) by AM6PR04MB4966.eurprd04.prod.outlook.com ([fe80::546f:92f0:f3c5:a148%7]) with mapi id 15.20.3499.029; Fri, 30 Oct 2020 15:55:36 +0000 From: Dong Aisheng To: linux-clk@vger.kernel.org Subject: [PATCH 1/1] clk: imx: scu: fix build break when compiled as modules Date: Fri, 30 Oct 2020 23:37:33 +0800 Message-Id: <20201030153733.30160-1-aisheng.dong@nxp.com> X-Mailer: git-send-email 2.23.0 X-Originating-IP: [119.31.174.66] X-ClientProxiedBy: SG2PR03CA0164.apcprd03.prod.outlook.com (2603:1096:4:c9::19) To AM6PR04MB4966.eurprd04.prod.outlook.com (2603:10a6:20b:2::14) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from b29396-OptiPlex-7040.ap.freescale.net (119.31.174.66) by SG2PR03CA0164.apcprd03.prod.outlook.com (2603:1096:4:c9::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.3499.8 via Frontend Transport; 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DIR:OUT; SFP:1101; X-MS-Exchange-AntiSpam-MessageData: t+3sIY7XSgmK2l03OXir1cWnWGIu5AO3Rjy2ZODmkWgl/QOOE1jfUw03nFXbmirCGm3oH97PWfuw8e7MW11O0Yb42opILpi1phhcMBYPdNV25X6iRAeV6eGOiaezT2MPH0cAZoqKycXct6yBg4J9zhWuYkcxKNBVkAluC3itImoaq+S0VDJblePYFs0BuXZ6ZE2mDJZI7FW8M2TdyjI2Anyvb8SLAm3b6LjBrabahQc8N+7vPfOPn8b8yVqYOfSKTVGphKwJAG9FxRbl2gAnEb18vURiR13g5QxWtwy76fPj6wZhvB7+V9RjMSIMG5DKJCftXubkD9t8ojYMsk65y8MYVwbSBi0RFt8UO40Jcl1qriTjcc5Oq+Ddvakz/85fhPN6LTAjmtifCcjmKuCThj0BfBRxbILLRWjidI0SLlhDoGtlUlyiKHsHEQ4zAc8T6UQn63KpCfbwY+1MeBZDqTpGEPlkbp4y54kcgReYYjvlMiCggdnSgEip9EKyI06ijqE1FIeg/79QSvZwQwv++WdHyprmZNa+I5M3MIJmrd5A9SWs1oHpf/RkCd9+Uc+Atl968MQ22ipzkfvTXFXCiVq1Q/NYLkwnI8ZbX5XXNL1e5uzVxOlz08IOIF9w8deSO0ElQgAj+jLIjnmmm7mXuA== X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 53a64c81-c0c8-41b5-784d-08d87cec3de0 X-MS-Exchange-CrossTenant-AuthSource: AM6PR04MB4966.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Oct 2020 15:55:36.8180 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: tlVnnmksE7t8N6rMHxz43XvRVthlLZxaZTuSvwiI2iqfO9O+67K9zQvTw4C0rq41CDozdfha/hVeJ9YFDR5P2w== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM6PR04MB5285 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201030_115540_444885_3F53B86A X-CRM114-Status: GOOD ( 19.32 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Dong Aisheng , kernel test robot , sboyd@kernel.org, mturquette@baylibre.com, linux-imx@nxp.com, kernel@pengutronix.de, fabio.estevam@nxp.com, shawnguo@kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org After commit e0d0d4d86c76 ("clk: imx8qxp: Support building i.MX8QXP clock driver as module"), clk-scu.c and clk-imx8qxp.c are complied in one module, thus there can be only one module_init() in those two files. Commit 77d8f3068c63 ("clk: imx: scu: add two cells binding support") introduced another module_init() in clk_scu.c which caused the errors below. To fix the issue, we can remove the unnecessary builtin_platform_driver from clk_scu.c and directly register the driver in imx_clk_scu_init(). CC [M] drivers/clk/imx/clk-scu.o In file included from ../include/linux/of_device.h:6, from ../include/linux/of_platform.h:12, from ../drivers/clk/imx/clk-scu.c:11: ../drivers/clk/imx/clk-scu.c: In function ‘imx_clk_scu_init’: ../drivers/clk/imx/clk-scu.c:176:35: error: ‘imx_clk_scu_driver’ undeclared (first use in this function); did you mean ‘imx_clk_scu_init’? 176 | return platform_driver_register(&imx_clk_scu_driver); | ^~~~~~~~~~~~~~~~~~ ../include/linux/platform_device.h:218:29: note: in definition of macro ‘platform_driver_register’ 218 | __platform_driver_register(drv, THIS_MODULE) | ^~~ ../drivers/clk/imx/clk-scu.c:176:35: note: each undeclared identifier is reported only once for each function it appears in 176 | return platform_driver_register(&imx_clk_scu_driver); | ^~~~~~~~~~~~~~~~~~ ../include/linux/platform_device.h:218:29: note: in definition of macro ‘platform_driver_register’ 218 | __platform_driver_register(drv, THIS_MODULE) | ^~~ ../drivers/clk/imx/clk-scu.c:177:1: error: control reaches end of non-void function [-Werror=return-type] 177 | } | ^ At top level: ../drivers/clk/imx/clk-scu.c:470:31: warning: ‘imx_clk_scu_driver’ defined but not used [-Wunused-variable] 470 | static struct platform_driver imx_clk_scu_driver = { Reported-by: kernel test robot Fixes: 77d8f3068c63 ("clk: imx: scu: add two cells binding support") Signed-off-by: Dong Aisheng Acked-by: Stephen Boyd --- drivers/clk/imx/clk-scu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/clk/imx/clk-scu.c b/drivers/clk/imx/clk-scu.c index e5837e7caa50..d8d59c90bb18 100644 --- a/drivers/clk/imx/clk-scu.c +++ b/drivers/clk/imx/clk-scu.c @@ -20,6 +20,7 @@ static struct imx_sc_ipc *ccm_ipc_handle; struct device_node *pd_np; +static struct platform_driver imx_clk_scu_driver; struct imx_scu_clk_node { const char *name; @@ -173,7 +174,7 @@ int imx_clk_scu_init(struct device_node *np) } } - return 0; + return platform_driver_register(&imx_clk_scu_driver); } /* @@ -474,7 +475,6 @@ static struct platform_driver imx_clk_scu_driver = { }, .probe = imx_clk_scu_probe, }; -builtin_platform_driver(imx_clk_scu_driver); static int imx_clk_scu_attach_pd(struct device *dev, u32 rsrc_id) {