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Fri, 11 Oct 2019 16:57:29 +0000 From: Jerome Pouiller To: zhong jiang CC: "gregkh@linuxfoundation.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH RESEND v2] staging: wfx: fix an undefined reference error when CONFIG_MMC=m Thread-Topic: [PATCH RESEND v2] staging: wfx: fix an undefined reference error when CONFIG_MMC=m Thread-Index: AQHVgFJI7oBgPIfynUuM0VKvgctb36dVqUeA Date: Fri, 11 Oct 2019 16:57:28 +0000 Message-ID: <8983882.YYcFGT5GfJ@pc-42> References: <1570811647-64905-1-git-send-email-zhongjiang@huawei.com> In-Reply-To: <1570811647-64905-1-git-send-email-zhongjiang@huawei.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=Jerome.Pouiller@silabs.com; x-originating-ip: [37.71.187.125] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 8390adf3-9916-44e5-0ae1-08d74e6c19b1 x-ms-traffictypediagnostic: MN2PR11MB4431: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:4502; 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charset="iso-8859-1" Content-ID: <562AF1E79216F040839C551244968015@namprd11.prod.outlook.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: silabs.com X-MS-Exchange-CrossTenant-Network-Message-Id: 8390adf3-9916-44e5-0ae1-08d74e6c19b1 X-MS-Exchange-CrossTenant-originalarrivaltime: 11 Oct 2019 16:57:28.9162 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 54dbd822-5231-4b20-944d-6f4abcd541fb X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: SrkRhKehuCym/DI6xold6ndjlq1gEqUwN2QnktFM1SnDMJaCmfiZfgagnF6847m6Sqn2ue8QlzLkT7hB9dQzpQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR11MB4431 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Friday 11 October 2019 18:38:17 CEST zhong jiang wrote: > I hit the following error when compile the kernel. >=20 > drivers/staging/wfx/main.o: In function `wfx_core_init': > /home/z00352263/linux-next/linux-next/drivers/staging/wfx/main.c:488: und= efined reference to `sdio_register_driver' > drivers/staging/wfx/main.o: In function `wfx_core_exit': > /home/z00352263/linux-next/linux-next/drivers/staging/wfx/main.c:496: und= efined reference to `sdio_unregister_driver' > drivers/staging/wfx/main.o:(.debug_addr+0x1a8): undefined reference to `s= dio_register_driver' > drivers/staging/wfx/main.o:(.debug_addr+0x6f0): undefined reference to `s= dio_unregister_driver' For information, I cannot reproduce your issue (it does not mean that the issue does not exist). In add, if you obtain undefined references, it should only happen when CONFIG_MMC is not defined. Can you check that your Modules.symvers is up-to-date (by running a 'make modules') ? --=20 J=E9r=F4me Pouiller