Subject: Re: [PATCH 2/2] ASoC: fsl_xcvr: add bitcount and timestamp controls

From: kernel test robot <[email-masked]>
Date: Sat, 7 Feb 2026 00:19:11 +0800

Hi Shengjiu,

kernel test robot noticed the following build errors:

[auto build test ERROR on broonie-sound/for-next]
[also build test ERROR on linus/master v6.19-rc8 next-20260205]
[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/Shengjiu-Wang/ASoC-fsl_sai-add-bitcount-and-timestamp-controls/20260206-164423
base:   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
patch link:    https://lore.kernel.org/r/20260206084334.483404-3-shengjiu.wang%40nxp.com
patch subject: [PATCH 2/2] ASoC: fsl_xcvr: add bitcount and timestamp controls
config: hexagon-randconfig-002-20260206 (https://download.01.org/0day-ci/archive/20260207/[email-masked]/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 9b8addffa70cee5b2acc5454712d9cf78ce45710)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260207/[email-masked]/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-masked]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email-masked]/

All errors (new ones prefixed by >>):

>> sound/soc/fsl/fsl_xcvr.c:70:46: error: call to undeclared function '__bf_shf'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
      70 |         SOC_ENUM_SINGLE(FSL_XCVR_TX_DPTH_CNTR_CTRL, __bf_shf(FSL_XCVR_TX_DPTH_CNTR_CTRL_TSINC),
         |                                                     ^
>> sound/soc/fsl/fsl_xcvr.c:70:46: error: initializer element is not a compile-time constant
      70 |         SOC_ENUM_SINGLE(FSL_XCVR_TX_DPTH_CNTR_CTRL, __bf_shf(FSL_XCVR_TX_DPTH_CNTR_CTRL_TSINC),
         |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      71 |                         ARRAY_SIZE(inc_mode), inc_mode),
         |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/sound/soc.h:215:24: note: expanded from macro 'SOC_ENUM_SINGLE'
     215 |         SOC_ENUM_DOUBLE(xreg, xshift, xshift, xitems, xtexts)
         |         ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/sound/soc.h:211:27: note: expanded from macro 'SOC_ENUM_DOUBLE'
     211 | {       .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
         |                                 ^~~~~~~~
   sound/soc/fsl/fsl_xcvr.c:78:6: error: initializer element is not a compile-time constant
      78 |                    __bf_shf(FSL_XCVR_TX_DPTH_CNTR_CTRL_TSEN), 1, 0),
         |                    ^
   sound/soc/fsl/fsl_xcvr.c:81:6: error: initializer element is not a compile-time constant
      81 |                    __bf_shf(FSL_XCVR_TX_DPTH_CNTR_CTRL_RTSC), 1, 0),
         |                    ^
   sound/soc/fsl/fsl_xcvr.c:83:6: error: initializer element is not a compile-time constant
      83 |                    __bf_shf(FSL_XCVR_TX_DPTH_CNTR_CTRL_RBC), 1, 0),
         |                    ^
   sound/soc/fsl/fsl_xcvr.c:93:6: error: initializer element is not a compile-time constant
      93 |                    __bf_shf(FSL_XCVR_RX_DPTH_CNTR_CTRL_TSEN), 1, 0),
         |                    ^
   sound/soc/fsl/fsl_xcvr.c:96:6: error: initializer element is not a compile-time constant
      96 |                    __bf_shf(FSL_XCVR_RX_DPTH_CNTR_CTRL_RTSC), 1, 0),
         |                    ^
   sound/soc/fsl/fsl_xcvr.c:98:6: error: initializer element is not a compile-time constant
      98 |                    __bf_shf(FSL_XCVR_RX_DPTH_CNTR_CTRL_RBC), 1, 0),
         |                    ^
>> sound/soc/fsl/fsl_xcvr.c:1133:19: error: invalid application of 'sizeof' to an incomplete type 'const struct snd_kcontrol_new[]'
    1133 |         .num_controls           = ARRAY_SIZE(fsl_xcvr_timestamp_ctrls),
         |                                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/array_size.h:11:32: note: expanded from macro 'ARRAY_SIZE'
      11 | #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
         |                                ^~~~~
   9 errors generated.

vim +/__bf_shf +70 sound/soc/fsl/fsl_xcvr.c

    68	
    69	static const struct soc_enum tstmp_enum[] = {
  > 70		SOC_ENUM_SINGLE(FSL_XCVR_TX_DPTH_CNTR_CTRL, __bf_shf(FSL_XCVR_TX_DPTH_CNTR_CTRL_TSINC),
    71				ARRAY_SIZE(inc_mode), inc_mode),
    72		SOC_ENUM_SINGLE(FSL_XCVR_RX_DPTH_CNTR_CTRL, __bf_shf(FSL_XCVR_RX_DPTH_CNTR_CTRL_TSINC),
    73				ARRAY_SIZE(inc_mode), inc_mode),
    74	};
    75	

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