linux-kernel - Re: [PATCH v5 4/5] i3c: dw: use FIELD_PREP for device address table macros

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Message-ID: <202512030652.72UiYSSA-lkp@intel.com>
Date: Wed, 3 Dec 2025 06:49:29 +0800
From: kernel test robot <lkp@...el.com>
To: adrianhoyin.ng@...era.com, alexandre.belloni@...tlin.com,
	Frank.Li@....com, linux-i3c@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, adrianhoyin.ng@...era.com
Subject: Re: [PATCH v5 4/5] i3c: dw: use FIELD_PREP for device address table
 macros

Hi,

kernel test robot noticed the following build errors:

[auto build test ERROR on i3c/i3c/next]
[also build test ERROR on linus/master v6.18 next-20251202]
[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/adrianhoyin-ng-altera-com/i3c-add-sysfs-entry-for-Device-NACK-Retry-count/20251202-163150
base:   https://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux.git i3c/next
patch link:    https://lore.kernel.org/r/4c4791c018d61beb9ff85ca68c5bf48940d2398e.1764663888.git.adrianhoyin.ng%40altera.com
patch subject: [PATCH v5 4/5] i3c: dw: use FIELD_PREP for device address table macros
config: powerpc64-randconfig-r073-20251203 (https://download.01.org/0day-ci/archive/20251203/202512030652.72UiYSSA-lkp@intel.com/config)
compiler: powerpc64-linux-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251203/202512030652.72UiYSSA-lkp@intel.com/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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202512030652.72UiYSSA-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/i3c/master/dw-i3c-master.c: In function 'dw_i3c_master_daa':
>> drivers/i3c/master/dw-i3c-master.c:214:40: error: implicit declaration of function 'FIELD_PREP' [-Werror=implicit-function-declaration]
    #define DEV_ADDR_TABLE_DYNAMIC_ADDR(x) FIELD_PREP(DEV_ADDR_TABLE_DYNAMIC_MASK, x)
                                           ^~~~~~~~~~
   drivers/i3c/master/dw-i3c-master.c:862:10: note: in expansion of macro 'DEV_ADDR_TABLE_DYNAMIC_ADDR'
      writel(DEV_ADDR_TABLE_DYNAMIC_ADDR(ret),
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors


vim +/FIELD_PREP +214 drivers/i3c/master/dw-i3c-master.c

   206	
   207	#define DW_I3C_DEV_NACK_RETRY_CNT_MAX	0x3
   208	#define DEV_ADDR_TABLE_DYNAMIC_MASK		GENMASK(23, 16)
   209	#define DEV_ADDR_TABLE_STATIC_MASK		GENMASK(6, 0)
   210	#define DEV_ADDR_TABLE_IBI_MDB		BIT(12)
   211	#define DEV_ADDR_TABLE_SIR_REJECT	BIT(13)
   212	#define DEV_ADDR_TABLE_DEV_NACK_RETRY_CNT(x)	(((x) << 29) & GENMASK(30, 29))
   213	#define DEV_ADDR_TABLE_LEGACY_I2C_DEV	BIT(31)
 > 214	#define DEV_ADDR_TABLE_DYNAMIC_ADDR(x) FIELD_PREP(DEV_ADDR_TABLE_DYNAMIC_MASK, x)
   215	#define DEV_ADDR_TABLE_STATIC_ADDR(x) FIELD_PREP(DEV_ADDR_TABLE_STATIC_MASK, x)
   216	#define DEV_ADDR_TABLE_LOC(start, idx)	((start) + ((idx) << 2))
   217	

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0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki