linux-kernel - Re: [PATCH v4 0/3] mtd: spinand: Add support for GigaDevice GD5F1GQ4UFxxG

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Date:   Thu, 23 May 2019 06:56:10 +0000
From:   Schrempf Frieder <frieder.schrempf@...tron.de>
To:     Jeff Kletsky <lede@...ycomm.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>
CC:     Boris Brezillon <bbrezillon@...nel.org>,
        Richard Weinberger <richard@....at>,
        David Woodhouse <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>,
        Marek Vasut <marek.vasut@...il.com>,
        "linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kbuild-all@...org" <kbuild-all@...org>
Subject: Re: [PATCH v4 0/3] mtd: spinand: Add support for GigaDevice
 GD5F1GQ4UFxxG

Hi Jeff,

On 23.05.19 00:05, Jeff Kletsky wrote:
> Addresses changes in macros and related data structures introduced by
>    commit 377e517b5fa5
>        mtd: nand: Add max_bad_eraseblocks_per_lun info to memorg
> 
> Resolves issue detected by kbuild test robot
>    Tue, 21 May 2019 17:28:09 +0800
>    Tue, 21 May 2019 18:17:28 +0800
> 
> GD5F1GQ4UFxxG data sheet on page 34 of gd5f1gq4xfxxg_v2.4_20190322.pdf
> indicates "Minumum number of valid blocks (Nvb)" 1004 out of 1024 total.
> 
> Newly introduced "max bad blocks" parameter set to 20 (1024-1020).
> 
> Rebased on v5.2-rc1 and confirmed patch applies on master.
> 
> 
> Patches 1/3 and 2/3 are the same as in the previous series.
> 
> Patch 3/3, mtd: spinand: Add support for GigaDevice GD5F1GQ4UFxxG,
> includes the additional parameter (compared here to v3 of the series):
> 
>      SPINAND_INFO("GD5F1GQ4UFxxG", 0xb148,
>      -                    NAND_MEMORG(1, 2048, 128, 64, 1024, 1, 1, 1),
>      +                    NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
>                           NAND_ECCREQ(8, 512),
>                           SPINAND_INFO_OP_VARIANTS(&read_cache_variants_f,
>                           &write_cache_variants,
> 
> R-b of Frieder Schrempf removed from [3/3] as a result this change.

As to what I know, this would not have been necessary in this case. I 
missed the missing parameter while reviewing and you fixed it with this 
new version, so you obviously improved the patch with a minor change and 
it wouldn't be working without this anyway. So I think in such cases you 
would typically keep the R-b tags.

Also if you drop the R-b tag from one of the patches in your set, you 
should instead CC the reviewer for the whole set. Otherwise 
get_maintainer will only CC the reviewer for those patches that contain 
his tag. In this case I wasn't CCed for patch 3/3.

Thanks,
Frieder

> 
> Supersedes series:
> 
> mtd: spinand: Add support for GigaDevice GD5F1GQ4UFxxG
> https://patchwork.ozlabs.org/project/linux-mtd/list/?series=108868
> 
> 
> 
> Jeff
> 
> 
> 
> Cc: Miquel Raynal <miquel.raynal@...tlin.com>
> Cc: Schrempf Frieder <frieder.schrempf@...tron.de>
> Cc: Boris Brezillon <bbrezillon@...nel.org>
> Cc: Richard Weinberger <richard@....at>
> Cc: David Woodhouse <dwmw2@...radead.org>
> Cc: Brian Norris <computersforpeace@...il.com>
> Cc: Marek Vasut <marek.vasut@...il.com>
> Cc: linux-mtd@...ts.infradead.org
> Cc: linux-kernel@...r.kernel.org
> Cc: kbuild-all@...org
> 
> 
>