linux-kernel - Re: [PATCH v2] nand: ranw: qcom_nand: stop using phys_to

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Date:   Wed, 18 Jul 2018 09:47:58 +0200
From:   Miquel Raynal <miquel.raynal@...tlin.com>
To:     Boris Brezillon <boris.brezillon@...tlin.com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        David Woodhouse <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>,
        Marek Vasut <marek.vasut@...il.com>,
        Richard Weinberger <richard@....at>,
        Abhishek Sahu <absahu@...eaurora.org>,
        Archit Taneja <architt@...eaurora.org>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] nand: ranw: qcom_nand: stop using phys_to_dma()

Hi Boris,

Boris Brezillon <boris.brezillon@...tlin.com> wrote on Tue, 17 Jul 2018
22:33:59 +0200:

> On Tue, 17 Jul 2018 22:27:42 +0200
> Arnd Bergmann <arnd@...db.de> wrote:
> 
> > Compile-testing this driver on x86 caused a link error:
> > 
> > ERROR: "__phys_to_dma" [drivers/mtd/nand/raw/qcom_nandc.ko] undefined!
> > 
> > The problem here is that the driver attempts to convert the physical
> > address into the DMA controller as a dma_addr_t and calls phys_to_dma()
> > to do the conversion.
> > 
> > The correct way to do the conversion is using the dma mapping interfaces.
> > 
> > Fixes: c76b78d8ec05 ("mtd: nand: Qualcomm NAND controller driver")
> > Signed-off-by: Arnd Bergmann <arnd@...db.de>  
> 
> Reviewed-by: Boris Brezillon <boris.brezillon@...tlin.com>
> 
> Miquel, can you fix the subject prefix when applying?

Applied to nand/next with the subject prefix being:
"mtd: rawnand: qcom:"

Thanks
Miquèl