2016-03-05 02:26:27

by Brian Norris

[permalink] [raw]
Subject: Re: [PATCH v3 16/52] mtd: nand: use mtd_set_ecclayout() where appropriate

On Fri, Feb 26, 2016 at 01:57:24AM +0100, Boris Brezillon wrote:
> Use the mtd_set_ecclayout() helper instead of directly assigning the
> mtd->ecclayout field.
>
> Signed-off-by: Boris Brezillon <[email protected]>
> ---
> drivers/mtd/nand/nand_base.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
> index 17504f2..5093a3c 100644
> --- a/drivers/mtd/nand/nand_base.c
> +++ b/drivers/mtd/nand/nand_base.c
> @@ -4288,7 +4288,7 @@ int nand_scan_tail(struct mtd_info *mtd)
> ecc->write_oob_raw = ecc->write_oob;
>
> /* propagate ecc info to mtd_info */
> - mtd->ecclayout = ecc->layout;
> + mtd_set_ecclayout(mtd, ecc->layout);

I'm having trouble applying this one. For the life of me, I can't figure
out where you got this context from. This block only appears much later
in nand_scan_tail()...

Do you think you could post a git tree with your intended changes? I may
just try to pull something in like that instead.

BTW, I'm not sure the OMAP refactorings are going to come in time, but I
was planning to pull those directly from the TI folks (i.e., they won't
be rebased on l2-mtd.git), since there's some intermingling of platform
changes there. I think I can fix the conflicts fine, but FYI.

Brian

> mtd->ecc_strength = ecc->strength;
> mtd->ecc_step_size = ecc->size;
>
> --
> 2.1.4
>


2016-03-05 08:53:52

by Boris Brezillon

[permalink] [raw]
Subject: Re: [PATCH v3 16/52] mtd: nand: use mtd_set_ecclayout() where appropriate

Hi Brian,

On Fri, 4 Mar 2016 18:26:21 -0800
Brian Norris <[email protected]> wrote:

> On Fri, Feb 26, 2016 at 01:57:24AM +0100, Boris Brezillon wrote:
> > Use the mtd_set_ecclayout() helper instead of directly assigning the
> > mtd->ecclayout field.
> >
> > Signed-off-by: Boris Brezillon <[email protected]>
> > ---
> > drivers/mtd/nand/nand_base.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
> > index 17504f2..5093a3c 100644
> > --- a/drivers/mtd/nand/nand_base.c
> > +++ b/drivers/mtd/nand/nand_base.c
> > @@ -4288,7 +4288,7 @@ int nand_scan_tail(struct mtd_info *mtd)
> > ecc->write_oob_raw = ecc->write_oob;
> >
> > /* propagate ecc info to mtd_info */
> > - mtd->ecclayout = ecc->layout;
> > + mtd_set_ecclayout(mtd, ecc->layout);
>
> I'm having trouble applying this one. For the life of me, I can't figure
> out where you got this context from. This block only appears much later
> in nand_scan_tail()...
>

Patch 7 has moved this section upper in the function to avoid problems
when calculating the number of available/free OOB bytes.

> Do you think you could post a git tree with your intended changes? I may
> just try to pull something in like that instead.

Yep, it's there [1]. Note that this branch contains the two fixes I
talked about with Harvey and Stephan. I also made a few changes to use
ecc->total instead of calculating (ecc->steps * ecc->bytes).

>
> BTW, I'm not sure the OMAP refactorings are going to come in time, but I
> was planning to pull those directly from the TI folks (i.e., they won't
> be rebased on l2-mtd.git), since there's some intermingling of platform
> changes there. I think I can fix the conflicts fine, but FYI.

Okay, then I'll let you deal with those conflicts. I can check your
conflict resolution if you're unsure.

Thanks,

Boris


--
Boris Brezillon, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

2016-03-05 09:01:21

by Boris Brezillon

[permalink] [raw]
Subject: Re: [PATCH v3 16/52] mtd: nand: use mtd_set_ecclayout() where appropriate

On Sat, 5 Mar 2016 09:53:37 +0100
Boris Brezillon <[email protected]> wrote:

> Hi Brian,
>
> On Fri, 4 Mar 2016 18:26:21 -0800
> Brian Norris <[email protected]> wrote:
>
> > On Fri, Feb 26, 2016 at 01:57:24AM +0100, Boris Brezillon wrote:
> > > Use the mtd_set_ecclayout() helper instead of directly assigning the
> > > mtd->ecclayout field.
> > >
> > > Signed-off-by: Boris Brezillon <[email protected]>
> > > ---
> > > drivers/mtd/nand/nand_base.c | 2 +-
> > > 1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
> > > index 17504f2..5093a3c 100644
> > > --- a/drivers/mtd/nand/nand_base.c
> > > +++ b/drivers/mtd/nand/nand_base.c
> > > @@ -4288,7 +4288,7 @@ int nand_scan_tail(struct mtd_info *mtd)
> > > ecc->write_oob_raw = ecc->write_oob;
> > >
> > > /* propagate ecc info to mtd_info */
> > > - mtd->ecclayout = ecc->layout;
> > > + mtd_set_ecclayout(mtd, ecc->layout);
> >
> > I'm having trouble applying this one. For the life of me, I can't figure
> > out where you got this context from. This block only appears much later
> > in nand_scan_tail()...
> >
>
> Patch 7 has moved this section upper in the function to avoid problems
> when calculating the number of available/free OOB bytes.
>
> > Do you think you could post a git tree with your intended changes? I may
> > just try to pull something in like that instead.
>
> Yep, it's there [1].

Forgot to paste the link.

> Note that this branch contains the two fixes I
> talked about with Harvey and Stephan. I also made a few changes to use
> ecc->total instead of calculating (ecc->steps * ecc->bytes).

I'll probably also send a v4 with the fixes squashed in patch 5 and 7,
just for the record.

>
> >
> > BTW, I'm not sure the OMAP refactorings are going to come in time, but I
> > was planning to pull those directly from the TI folks (i.e., they won't
> > be rebased on l2-mtd.git), since there's some intermingling of platform
> > changes there. I think I can fix the conflicts fine, but FYI.
>
> Okay, then I'll let you deal with those conflicts. I can check your
> conflict resolution if you're unsure.
>
> Thanks,
>
> Boris
>
>

[1]https://github.com/bbrezillon/linux-0day/tree/nand/ecclayout


--
Boris Brezillon, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com