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Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hEDkm-0008G2-9e; Wed, 10 Apr 2019 13:59:04 +0000 Received: from bhuna.collabora.co.uk ([2a00:1098:0:82:1000:25:2eeb:e3e3]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hEDkj-0008FF-4h for linux-mtd@lists.infradead.org; Wed, 10 Apr 2019 13:59:02 +0000 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 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190410_065901_448318_8ECF2409 X-CRM114-Status: GOOD ( 19.98 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: bbrezillon@kernel.org, richard@nod.at, linux-kernel@vger.kernel.org, marek.vasut@gmail.com, paul.burton@mips.com, linux-mtd@lists.infradead.org, miquel.raynal@bootlin.com, computersforpeace@gmail.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.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. ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/