linux-kernel - Re: [PATCH] mtd: rawnand: ingenic: fix ingenic

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Date:   Mon, 17 Jun 2019 14:16:59 +0200
From:   Miquel Raynal <miquel.raynal@...tlin.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Paul Cercueil <paul@...pouillou.net>,
        David Woodhouse <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>,
        Marek Vasut <marek.vasut@...il.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        linux-mtd <linux-mtd@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mtd: rawnand: ingenic: fix ingenic_ecc dependency

Hello,

Arnd Bergmann <arnd@...db.de> wrote on Mon, 17 Jun 2019 14:12:48 +0200:

> On Mon, Jun 17, 2019 at 1:24 PM Paul Cercueil <paul@...pouillou.net> wrote:
> 
> > I think there's a better way to fix it, only in Kconfig.
> >
> > * Add a bool symbol MTD_NAND_INGENIC_USE_HW_ECC
> > * Have the three ECC/BCH drivers select this symbol instead of
> >   MTD_NAND_INGENIC_ECC
> > * Add the following to the MTD_NAND_JZ4780 config option:
> >   "select MTD_NAND_INGENIC_ECC if MTD_NAND_INGENIC_USE_HW_ECC"  
> 
> I don't see much difference to my approach here, but if you want
> to submit that version with 'Reported-by: Arnd Bergmann <arnd@...db.de>',
> please do so.
> 
> Yet another option would be to use Makefile code to link both
> files into one module, and remove the EXPORT_SYMBOL statements:
> 
> obj-$(CONFIG_MTD_NAND_JZ4780) += jz4780_nand.o
> jz4780_nand-y += ingenic_nand.o
> jz4780_nand-$(CONFIG_MTD_NAND_INGENIC_ECC) += ingenic_ecc.o
> 

I personally have a preference for this one.

Thanks,
Miquèl