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Re: [PATCH V3] mmc: block: Add new ioctl to send multi commands

From Jon Hunter <jonathanh@nvidia.com>
Newsgroups linux.kernel
Subject Re: [PATCH V3] mmc: block: Add new ioctl to send multi commands
Date 2015-09-18 12:30 +0200
Message-ID <qa15x-8i7-29@gated-at.bofh.it> (permalink)
References <q8Dyi-1lu-15@gated-at.bofh.it> <q9iL8-2Ej-17@gated-at.bofh.it> <q9nrt-W0-33@gated-at.bofh.it> <q9BkJ-46q-7@gated-at.bofh.it>
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On 17/09/15 07:59, Ulf Hansson wrote:
> [...]
> 
>>>> +       /*
>>>> +        * The caller must have CAP_SYS_RAWIO, and must be calling this on the
>>>> +        * whole block device, not on a partition.  This prevents overspray
>>>> +        * between sibling partitions.
>>>> +        */
>>>> +       if ((!capable(CAP_SYS_RAWIO)) || (bdev != bdev->bd_contains))
>>>> +               return -EPERM;
>>>
>>> This check is common for multi and non-multi. Please move it to the
>>> mmc_blk_ioctl() to avoid some code duplication.
>>
>> Yes that's true. I can move but it means also passing bdev to
>> __mmc_blk_ioctl_cmd() as another argument. It is not a big deal, but it
>> was more convenient to test here. If your preference is to consolidate
>> the tests to one place then I will move this test.
> 
> I was suggesting to move it to mmc_blk_ioctl() and not to
> __mmc_blk_ioctl_cmd(). That shouldn't cause any changes to any
> function-definitions, right!?

Sorry, completely mis-read. Yes that makes sense, will update.

Cheers
Jon
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Thread

[PATCH V3] mmc: block: Add new ioctl to send multi commands Jon Hunter <jonathanh@nvidia.com> - 2015-09-14 17:10 +0200
  Re: [PATCH V3] mmc: block: Add new ioctl to send multi commands Grant Grundler <grundler@chromium.org> - 2015-09-14 18:40 +0200
  Re: [PATCH V3] mmc: block: Add new ioctl to send multi commands Ulf Hansson <ulf.hansson@linaro.org> - 2015-09-16 13:10 +0200
    Re: [PATCH V3] mmc: block: Add new ioctl to send multi commands Jon Hunter <jonathanh@nvidia.com> - 2015-09-16 18:10 +0200
      Re: [PATCH V3] mmc: block: Add new ioctl to send multi commands Ulf Hansson <ulf.hansson@linaro.org> - 2015-09-17 09:00 +0200
        Re: [PATCH V3] mmc: block: Add new ioctl to send multi commands Jon Hunter <jonathanh@nvidia.com> - 2015-09-18 12:30 +0200
  Re: [PATCH V3] mmc: block: Add new ioctl to send multi commands Gwendal Grignou <gwendal@chromium.org> - 2015-09-16 20:00 +0200
    Re: [PATCH V3] mmc: block: Add new ioctl to send multi commands Jon Hunter <jonathanh@nvidia.com> - 2015-09-21 12:00 +0200
      Re: [PATCH V3] mmc: block: Add new ioctl to send multi commands Jon Hunter <jonathanh@nvidia.com> - 2015-09-21 13:30 +0200
        Re: [PATCH V3] mmc: block: Add new ioctl to send multi commands Grant Grundler <grundler@google.com> - 2015-09-21 20:50 +0200

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