Re: [PATCH v2 1/1] iio: adc: qcom-spmi-adc5: Fix the channel name

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On 23.01.2023 18:01, Marijn Suijten wrote:
> On 2023-01-23 17:35:34, Konrad Dybcio wrote:
>> On 22.01.2023 18:24, Jonathan Cameron wrote:
>>> On Wed, 18 Jan 2023 12:06:23 +0200
>>> Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> wrote:
>>>
>>>> The node name can contain an address part which is unused
>>>> by the driver. Moreover, this string is propagated into
>>>> the userspace label, sysfs filenames *and breaking ABI*.
>>>>
>>>> Cut the address part out before assigning the channel name.
>>>>
>>>> Fixes: 4f47a236a23d ("iio: adc: qcom-spmi-adc5: convert to device properties")
>>>> Reported-by: Marijn Suijten <marijn.suijten@xxxxxxxxxxxxxx>
>>>> Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
>>>
>>> LGTM, but given it will have ABI impact, I'd like to hear from 
>>> Andy, Bjorn or Konrad as maintainers and /or Dmitry as someone
>>> who has touched this driver fairly recently.
>> + Doug
>>
>> Unless the Chromium folks relied on the old names (they're the
>> only ones I can think of that actually could have tapped into
>> this), I say green light!
> 
> Can you clarify "old names"?  The ABI-broken ones after Nuno's patch
> with @xx suffix, or the orignal names (without @xx) before that, which
> this patch from Andy reverts back to?
Nuno's patch names, this is a fix for that but in a very unfortunate
event, they might have started using sysfs paths right when the
breakage happened.

Konrad
> 
> - Marijn



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