Re: [PATCH] iio: pressure: cros_ec_baro: simplify timestamp channel definition

On Thu, 28 May 2026 14:40:51 +0800
kernel test robot <[email protected]> wrote:

> Hi David,
> 
> kernel test robot noticed the following build errors:
> 
For the record, this is a side effect of some email trouble David had.
It's meant to be in a series with the patch that makes that macro
a compound literal.

> [auto build test ERROR on jic23-iio/togreg]
> [also build test ERROR on linus/master v7.1-rc5 next-20260527]
> [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/David-Lechner/iio-pressure-cros_ec_baro-simplify-timestamp-channel-definition/20260525-134550
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg
> patch link:    https://lore.kernel.org/r/20260525014654.2399354-1-dlechner%40baylibre.com
> patch subject: [PATCH] iio: pressure: cros_ec_baro: simplify timestamp channel definition
> config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20260528/[email protected]/config)
> compiler: m68k-linux-gcc (GCC) 15.2.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260528/[email protected]/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 <[email protected]>
> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
> 
> All errors (new ones prefixed by >>):
> 
>    In file included from include/linux/iio/buffer.h:10,
>                     from drivers/iio/pressure/cros_ec_baro.c:9:
>    drivers/iio/pressure/cros_ec_baro.c: In function 'cros_ec_baro_probe':
> >> include/linux/iio/iio.h:356:38: error: expected expression before '{' token  
>      356 | #define IIO_CHAN_SOFT_TIMESTAMP(_si) {                                  \
>          |                                      ^
>    drivers/iio/pressure/cros_ec_baro.c:174:20: note: in expansion of macro 'IIO_CHAN_SOFT_TIMESTAMP'
>      174 |         *channel = IIO_CHAN_SOFT_TIMESTAMP(1);
>          |                    ^~~~~~~~~~~~~~~~~~~~~~~
> 
> 
> vim +356 include/linux/iio/iio.h
> 
> 00c5f80c2fad53 include/linux/iio/iio.h   Peter Rosin      2016-11-08  355  
> 07d4655b410a4d include/linux/iio/iio.h   Jonathan Cameron 2013-11-12 @356  #define IIO_CHAN_SOFT_TIMESTAMP(_si) {					\
> 07d4655b410a4d include/linux/iio/iio.h   Jonathan Cameron 2013-11-12  357  	.type = IIO_TIMESTAMP,						\
> 07d4655b410a4d include/linux/iio/iio.h   Jonathan Cameron 2013-11-12  358  	.channel = -1,							\
> 07d4655b410a4d include/linux/iio/iio.h   Jonathan Cameron 2013-11-12  359  	.scan_index = _si,						\
> 07d4655b410a4d include/linux/iio/iio.h   Jonathan Cameron 2013-11-12  360  	.scan_type = {							\
> 07d4655b410a4d include/linux/iio/iio.h   Jonathan Cameron 2013-11-12  361  		.sign = 's',						\
> 07d4655b410a4d include/linux/iio/iio.h   Jonathan Cameron 2013-11-12  362  		.realbits = 64,					\
> 07d4655b410a4d include/linux/iio/iio.h   Jonathan Cameron 2013-11-12  363  		.storagebits = 64,					\
> 07d4655b410a4d include/linux/iio/iio.h   Jonathan Cameron 2013-11-12  364  		},							\
> 07d4655b410a4d include/linux/iio/iio.h   Jonathan Cameron 2013-11-12  365  }
> 1d892719e70e47 drivers/staging/iio/iio.h Jonathan Cameron 2011-05-18  366  
> 
> --
> 0-DAY CI Kernel Test Service
> https://github.com/intel/lkp-tests/wiki