Re: [PATCH v2 4/8] iio: imu: adis_buffer: Add buffer setup API with buffer attributes

[Jonathan Cameron]

On Sat, 11 May 2024 06:21:53 +0800
kernel test robot <lkp@xxxxxxxxx> wrote:

> Hi Ramona,
> 
> kernel test robot noticed the following build warnings:
> 
> [auto build test WARNING on jic23-iio/togreg]
> [also build test WARNING on linus/master v6.9-rc7 next-20240510]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch#_base_tree_information]
> 
> url:    https://github.com/intel-lab-lkp/linux/commits/Ramona-Gradinariu/dt-bindings-iio-imu-Add-ADIS16501-compatibles/20240508-211559
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg
> patch link:    https://lore.kernel.org/r/20240508131310.880479-5-ramona.bolboaca13%40gmail.com
> patch subject: [PATCH v2 4/8] iio: imu: adis_buffer: Add buffer setup API with buffer attributes
> config: m68k-allmodconfig (https://download.01.org/0day-ci/archive/20240511/202405110642.5PmTepVs-lkp@xxxxxxxxx/config)
> compiler: m68k-linux-gcc (GCC) 13.2.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240511/202405110642.5PmTepVs-lkp@xxxxxxxxx/reproduce)
> 
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@xxxxxxxxx>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202405110642.5PmTepVs-lkp@xxxxxxxxx/
> 
> All warnings (new ones prefixed by >>):
> 
>    In file included from drivers/iio/imu/adis16400.c:24:
> >> include/linux/iio/imu/adis.h:530:60: warning: 'struct iio_dev_attr' declared inside parameter list will not be visible outside of this definition or declaration  
>      530 |                                               const struct iio_dev_attr **buffer_attrs);
>          |                                                            ^~~~~~~~~~~~
> 
> 
> vim +530 include/linux/iio/imu/adis.h
> 
>    524	
>    525	int
>    526	devm_adis_setup_buffer_and_trigger_with_attrs(struct adis *adis,
>    527						      struct iio_dev *indio_dev,
>    528						      irq_handler_t trigger_handler,
>    529						      const struct iio_buffer_setup_ops *ops,
>  > 530						      const struct iio_dev_attr **buffer_attrs);  
>    531	
> 
Forwards declaration needed.   I don't think we'd want to include linux/iio/sysfs.h in here so
struct iio_dev_attr; before this is the cleanest solution

Jonathan