linux-kernel - Re: [PATCH v3 00/10] Introduce NVIDIA Tegra Partition Table

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Date:   Mon, 23 Mar 2020 19:49:37 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Jens Axboe <axboe@...nel.dk>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Michał Mirosław <mirq-linux@...e.qmqm.pl>,
        David Heidelberg <david@...t.cz>,
        Peter Geis <pgwipeout@...il.com>,
        Stephen Warren <swarren@...dotorg.org>,
        Nicolas Chauvet <kwizart@...il.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Billy Laws <blaws05@...il.com>
Cc:     linux-tegra@...r.kernel.org, linux-block@...r.kernel.org,
        Andrey Danin <danindrey@...l.ru>,
        Gilles Grandou <gilles@...ndou.net>,
        Ryan Grachek <ryan@...ted.us>, linux-mmc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 00/10] Introduce NVIDIA Tegra Partition Table

23.03.2020 19:34, Dmitry Osipenko пишет:
> Some NVIDIA Tegra devices have GPT entry at a wrong location and others may
> even not have it at all. So either a custom workaround for GPT parsing or
> TegraPT support is needed for those devices if we want to support them in
> upstream kernel. The former solution was already rejected [1], let's try
> the latter.
> 
> [1] https://patchwork.ozlabs.org/patch/1240809/
> 
> Big thanks to everyone who helped with figuring out the TegraPT format!
> 
> Changelog:
> 
> v3: - Fixed "BUG: KASAN: slab-out-of-bounds in tegra_partition". Thanks to
>       Peter Geis for noticing the problem.
> 
>     - The MMC boot partitions scanning is now opt-in. See this patch:
> 
>         mmc: block: Support partition-table scanning on boot partitions
> 
>     - The found MMC boot partitions won't be assigned to the MMC boot
>       block device ever due to the new GENHD_FL_PART_SCAN_ONCE flag.
> 
>       This makes us to ensure that the old behavior of the MMC core is
>       preserved for a non-Tegra MMC-block users.
> 
>     New patches in v3:
> 
>         block: Introduce GENHD_FL_PART_SCAN_ONCE
>         mmc: sdhci-tegra: Enable boot partitions scanning on Tegra20 and Tegra30

I forgot to mention that the TegraPT Kconfig entry now depends on MMC,
which was suggested by Randy Dunlap in the review comment to the v2.