linux-kernel - Re: [PATCH v2 3/3] mtd: nand: squash struct nand_buffers into struct nand

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Date:   Tue, 5 Dec 2017 12:57:11 +0100
From:   Boris Brezillon <boris.brezillon@...e-electrons.com>
To:     Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc:     linux-mtd <linux-mtd@...ts.infradead.org>,
        Marek Vasut <marek.vasut@...il.com>,
        Richard Weinberger <richard@....at>,
        Kamal Dasu <kdasu.kdev@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Broadcom Kernel Feedback List 
        <bcm-kernel-feedback-list@...adcom.com>,
        Cyrille Pitchen <cyrille.pitchen@...ev4u.fr>,
        Han Xu <han.xu@....com>,
        Maxime Ripard <maxime.ripard@...e-electrons.com>,
        Brian Norris <computersforpeace@...il.com>,
        David Woodhouse <dwmw2@...radead.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v2 3/3] mtd: nand: squash struct nand_buffers into
 struct nand_chip

On Tue, 5 Dec 2017 20:49:28 +0900
Masahiro Yamada <yamada.masahiro@...ionext.com> wrote:

> 2017-12-05 17:47 GMT+09:00 Masahiro Yamada <yamada.masahiro@...ionext.com>:
> > struct nand_buffers is malloc'ed in nand_scan_tail() just for
> > containing three pointers.  Squash this struct into nand_chip.
> >
> > Move and rename as follows:
> >
> >   chip->buffers->ecccalc   ->  chip->ecc.calc_buf
> >   chip->buffers->ecccode   ->  chip->ecc.code_buf
> >   chip->buffers->databuf   ->  chip->data_buf
> >
> > Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
> > ---
> >  
> 
> 
> 
> 
> > diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
> > index dad438c..7870cb1 100644
> > --- a/drivers/mtd/nand/omap2.c
> > +++ b/drivers/mtd/nand/omap2.c
> > @@ -1530,7 +1530,7 @@ static int omap_write_page_bch(struct mtd_info *mtd, struct nand_chip *chip,
> >                                const uint8_t *buf, int oob_required, int page)
> >  {
> >         int ret;
> > -       uint8_t *ecc_calc = chip->buffers->ecccalc;
> > +       uint8_t *ecc_calc = chip->ecccalc;
> >
> >         /* Enable GPMC ecc engine */
> >         chip->ecc.hwctl(mtd, NAND_ECC_WRITE);
> > @@ -1568,7 +1568,7 @@ static int omap_write_subpage_bch(struct mtd_info *mtd,
> >                                   u32 data_len, const u8 *buf,
> >                                   int oob_required, int page)
> >  {
> > -       u8 *ecc_calc = chip->buffers->ecccalc;
> > +       u8 *ecc_calc = chip->ecccalc;
> >         int ecc_size      = chip->ecc.size;
> >         int ecc_bytes     = chip->ecc.bytes;
> >         int ecc_steps     = chip->ecc.steps;
> > @@ -1605,7 +1605,7 @@ static int omap_write_subpage_bch(struct mtd_info *mtd,
> >
> >         /* copy calculated ECC for whole page to chip->buffer->oob */
> >         /* this include masked-value(0xFF) for unwritten subpages */
> > -       ecc_calc = chip->buffers->ecccalc;
> > +       ecc_calc = chip->ecccalc;
> >         ret = mtd_ooblayout_set_eccbytes(mtd, ecc_calc, chip->oob_poi, 0,
> >                                          chip->ecc.total);
> >         if (ret)
> > @@ -1635,8 +1635,8 @@ static int omap_write_subpage_bch(struct mtd_info *mtd,
> >  static int omap_read_page_bch(struct mtd_info *mtd, struct nand_chip *chip,
> >                                 uint8_t *buf, int oob_required, int page)
> >  {
> > -       uint8_t *ecc_calc = chip->buffers->ecccalc;
> > -       uint8_t *ecc_code = chip->buffers->ecccode;
> > +       uint8_t *ecc_calc = chip->ecccalc;
> > +       uint8_t *ecc_code = chip->ecccode;
> >         int stat, ret;
> >         unsigned int max_bitflips = 0;
> >  
> 
> 
> 
> Sorry, I missed to update omap2.c
> 
> I will send v3.

No need to send a v3, I already fixed it when applying [1].

[1]https://github.com/bbrezillon/linux-0day/commit/59a7bfff7103d48713b2125c3844400301a3d028