Re: [PATCH v0 1/1] iio: Convert IIO_CHAN_SOFT_TIMESTAMP() to be compound literal

[David Laight]

On Mon, 18 May 2026 21:17:38 +0300
Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> wrote:

> On Tue, May 19, 2026 at 01:32:51AM +0800, kernel test robot wrote:
> 
> > kernel test robot noticed the following build warnings:
> > 
> > [auto build test WARNING on jic23-iio/togreg]
> > [also build test WARNING on linus/master v7.1-rc4 next-20260518]
> > [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/Andy-Shevchenko/iio-Convert-IIO_CHAN_SOFT_TIMESTAMP-to-be-compound-literal/20260518-151541
> > base:   https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg
> > patch link:    https://lore.kernel.org/r/20260518071349.469748-1-andriy.shevchenko%40linux.intel.com
> > patch subject: [PATCH v0 1/1] iio: Convert IIO_CHAN_SOFT_TIMESTAMP() to be compound literal
> > config: sparc64-randconfig-r132-20260518 (https://download.01.org/0day-ci/archive/20260519/202605190130.oWitiRzG-lkp@xxxxxxxxx/config)
> > compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 5bac06718f502014fade905512f1d26d578a18f3)
> > sparse: v0.6.5-rc1
> > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260519/202605190130.oWitiRzG-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/202605190130.oWitiRzG-lkp@xxxxxxxxx/
> > 
> > sparse warnings: (new ones prefixed by >>)  
> > >> drivers/iio/adc/max11410.c:807:31: sparse: sparse: cast to non-scalar
> > >> drivers/iio/adc/max11410.c:807:31: sparse: sparse: cast from non-scalar  
> 
> Thanks, the sparks were expected exactly in this and one more driver.
> I mentioned that in my reply to my own patch already.
> 

Can you just remove then cast from:
a44ef7c4609724e Ibrahim Tilki    2022-10-03 @807 \
  	channels[chan_idx] = (struct iio_chan_spec)IIO_CHAN_SOFT_TIMESTAMP(chan_idx);
since it is no longer needed?

-- David