From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 37A24C10F11 for ; Wed, 10 Apr 2019 13:59:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0E93F2070D for ; Wed, 10 Apr 2019 13:59:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732373AbfDJN7C (ORCPT ); Wed, 10 Apr 2019 09:59:02 -0400 Received: from bhuna.collabora.co.uk ([46.235.227.227]:54548 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727171AbfDJN7B (ORCPT ); Wed, 10 Apr 2019 09:59:01 -0400 Received: from localhost (unknown [IPv6:2a01:e0a:2c:6930:5cf4:84a1:2763:fe0d]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: bbrezillon) by bhuna.collabora.co.uk (Postfix) with ESMTPSA id 66BFC28245E; Wed, 10 Apr 2019 14:58:59 +0100 (BST) Date: Wed, 10 Apr 2019 15:58:56 +0200 From: Boris Brezillon To: Yue Haibing Cc: , , , , , , , Subject: Re: [PATCH] mtd: nand: Fix build error while CONFIG_MTD_NAND_ECC_SW_BCH is set to module Message-ID: <20190410155856.655122c8@collabora.com> In-Reply-To: <20190410153920.68267a1a@collabora.com> References: <20190410130747.35692-1-yuehaibing@huawei.com> <20190410153920.68267a1a@collabora.com> Organization: Collabora X-Mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 10 Apr 2019 15:39:28 +0200 Boris Brezillon wrote: > On Wed, 10 Apr 2019 21:07:47 +0800 > Yue Haibing wrote: > > > From: YueHaibing > > > > Fix gcc build error while CONFIG_MTD_NAND_ECC_SW_BCH > > is set to module: > > > > drivers/mtd/nand/raw/nand_base.o: In function `nand_cleanup': > > (.text+0xef6): undefined reference to `nand_bch_free' > > drivers/mtd/nand/raw/nand_base.o: In function `nand_scan_tail': > > nand_base.c:(.text+0xa101): undefined reference to `nand_bch_calculate_ecc' > > nand_base.c:(.text+0xa120): undefined reference to `nand_bch_correct_data' > > nand_base.c:(.text+0xa269): undefined reference to `nand_bch_init' > > > > CONFIG_MTD_NAND_ECC_SW_BCH should not be set to M, > > because MTD_RAW_NAND need it while linked. > > > > Reported-by: Hulk Robot > > Fixes: 193bd4002644 ("mtd: nand: add software BCH ECC support" > > Nope, it's not this one that introduced the regression. > > > > > Signed-off-by: YueHaibing > > --- > > drivers/mtd/nand/raw/Kconfig | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/drivers/mtd/nand/raw/Kconfig b/drivers/mtd/nand/raw/Kconfig > > index 615d738..0500c42 100644 > > --- a/drivers/mtd/nand/raw/Kconfig > > +++ b/drivers/mtd/nand/raw/Kconfig > > @@ -22,7 +22,7 @@ menuconfig MTD_RAW_NAND > > if MTD_RAW_NAND > > > > config MTD_NAND_ECC_SW_BCH > > - tristate "Support software BCH ECC" > > + bool "Support software BCH ECC" > > select BCH > > default n > > help > > Should be fixed with the following diff squashed into: > > 51ef1d0b2095 ("mtd: nand: Clarify Kconfig entry for software BCH ECC algorithm") > > --->8--- > diff --git a/include/linux/mtd/nand_bch.h b/include/linux/mtd/nand_bch.h > index b8106651f807..06ce2b655c13 100644 > --- a/include/linux/mtd/nand_bch.h > +++ b/include/linux/mtd/nand_bch.h > @@ -15,7 +15,7 @@ struct mtd_info; > struct nand_chip; > struct nand_bch_control; > > -#if defined(CONFIG_MTD_NAND_ECC_BCH) > +#if defined(CONFIG_MTD_NAND_ECC_SW_BCH) > > static inline int mtd_nand_has_bch(void) { return 1; } > > @@ -39,7 +39,7 @@ struct nand_bch_control *nand_bch_init(struct mtd_info *mtd); > */ > void nand_bch_free(struct nand_bch_control *nbc); > > -#else /* !CONFIG_MTD_NAND_ECC_BCH */ > +#else /* !CONFIG_MTD_NAND_ECC_SW_BCH */ > > static inline int mtd_nand_has_bch(void) { return 0; } > > @@ -64,6 +64,6 @@ static inline struct nand_bch_control *nand_bch_init(struct mtd_info *mtd) > > static inline void nand_bch_free(struct nand_bch_control *nbc) {} > > -#endif /* CONFIG_MTD_NAND_ECC_BCH */ > +#endif /* CONFIG_MTD_NAND_ECC_SW_BCH */ > > #endif /* __MTD_NAND_BCH_H__ */ Sorry, I didn't look at the right branch, this part of the code was correct, but we still have a problem to express the RAW_NAND(y) -> SW_BCH(y) dependency.