[PATCH 3/3] staging:iio: Fix scan mask update

Lars-Peter Clausen lars at metafoo.de
Sun Dec 18 19:44:06 UTC 2011


On 12/18/2011 07:02 PM, Jonathan Cameron wrote:
> On 12/09/2011 03:11 PM, Greg KH wrote:
>> On Fri, Dec 09, 2011 at 10:49:45AM +0100, Lars-Peter Clausen wrote:
>>> On 12/08/2011 09:18 PM, Greg KH wrote:
>>>> On Thu, Dec 08, 2011 at 06:35:53PM +0100, Lars-Peter Clausen wrote:
>>>>> When updating the scan mask we have to check the actual scan mask for if the
>>>>> channel is already enabled, not the matching scan mask from the available
>>>>> scan masks. The bit will already be set there and as a result the actual
>>>>> scan mask will not get updated and the channel stays disabled.
>>>>>
>>>>> Also fix the return value of iio_scan_el_store which would return 1 instead of
>>>>> the number of bytes written if the channel was already active in the scan mask.
>>>>
>>>> You just added a complier warning with this patch:
>>>>   CC [M]  drivers/staging/iio/industrialio-buffer.o
>>>> drivers/staging/iio/industrialio-buffer.c: In function ‘iio_scan_mask_query’:
>>>> drivers/staging/iio/industrialio-buffer.c:621:8: warning: unused variable ‘mask’ [-Wunused-variable]
>>>>
>>>> So I didn't apply it.
>>>
>>> Actually you did. At least it is in staging-next. Should I resend a updated
>>> patch or just a patch removing the now unused mask variable.
>>
>> Ugh, you are right, I was messing with my scripts to apply patches at
>> the time, and forgot to delete this branch.
>>
>> So, please send a follow-on patch to fix the warning.
>>
> Lars-Peter, have you sent such a patch to Greg?  I'm still seeing this
> warning hence the bump! Just wondering if this got lost in amongst
> everything else that is going on.

Haven't send it out yet. Will do tomorrow.



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