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    SubjectRe: [PATCH] mtd: rawnand: atmel: Unmap streaming DMA mappings
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    On 28.07.22 09:40, Tudor Ambarus wrote:
    > Every dma_map_single() call should have its dma_unmap_single() counterpart,
    > because the DMA address space is a shared resource and one could render the
    > machine unusable by consuming all DMA addresses.
    >
    > Cc: stable@vger.kernel.org
    > Fixes: f88fc122cc34 ("mtd: nand: Cleanup/rework the atmel_nand driver")
    > Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>

    This afaics is missing the following tag:

    Link:
    https://lore.kernel.org/lkml/13c6c9a2-6db5-c3bf-349b-4c127ad3496a@axentia.se/

    These tags are considered important by Linus[1] and others, as they
    allow anyone to look into the backstory weeks or years from now. That is
    why they should be placed in cases like this, as
    Documentation/process/submitting-patches.rst and
    Documentation/process/5.Posting.rst explain in more detail. I care
    personally, because these tags make my regression tracking efforts a
    whole lot easier, as they allow my tracking bot 'regzbot' to
    automatically connect reports with patches posted or committed to fix
    tracked regressions.

    [1] see for example:
    https://lore.kernel.org/all/CAHk-=wjMmSZzMJ3Xnskdg4+GGz=5p5p+GSYyFBTh0f-DgvdBWg@mail.gmail.com/
    https://lore.kernel.org/all/CAHk-=wgs38ZrfPvy=nOwVkVzjpM3VFU1zobP37Fwd_h9iAD5JQ@mail.gmail.com/
    https://lore.kernel.org/all/CAHk-=wjxzafG-=J8oT30s7upn4RhBs6TX-uVFZ5rME+L5_DoJA@mail.gmail.com/

    Apropos regzbot, let me tell regzbot to monitor this thread:

    #regzbot ^backmonitor:
    https://lore.kernel.org/lkml/13c6c9a2-6db5-c3bf-349b-4c127ad3496a@axentia.se/

    Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)

    P.S.: As the Linux kernel's regression tracker I deal with a lot of
    reports and sometimes miss something important when writing mails like
    this. If that's the case here, don't hesitate to tell me in a public
    reply, it's in everyone's interest to set the public record straight.

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