Re: [PATCH V5 3/3] firmware: scm: Modify only the download bits in TCSR register

[kernel test robot <lkp@xxxxxxxxx>]

Hi Kathiravan,

kernel test robot noticed the following build errors:

[auto build test ERROR on linusw-pinctrl/devel]
[also build test ERROR on linusw-pinctrl/for-next linus/master v6.5-rc2 next-20230721]
[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/Kathiravan-T/firmware-qcom_scm-provide-a-read-modify-write-function/20230720-150657
base:   https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git devel
patch link:    https://lore.kernel.org/r/20230720070408.1093698-4-quic_kathirav%40quicinc.com
patch subject: [PATCH V5 3/3] firmware: scm: Modify only the download bits in TCSR register
config: arm-allmodconfig (https://download.01.org/0day-ci/archive/20230722/202307220736.M9yPz2Cs-lkp@xxxxxxxxx/config)
compiler: arm-linux-gnueabi-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230722/202307220736.M9yPz2Cs-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/202307220736.M9yPz2Cs-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

   drivers/firmware/qcom_scm.c: In function 'qcom_scm_set_download_mode':
>> drivers/firmware/qcom_scm.c:459:48: error: implicit declaration of function 'FIELD_PREP' [-Werror=implicit-function-declaration]
     459 |                                                FIELD_PREP(QCOM_DOWNLOAD_MODE_MASK, val));
         |                                                ^~~~~~~~~~
   cc1: some warnings being treated as errors

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for SM_GCC_8350
   Depends on [n]: COMMON_CLK [=y] && COMMON_CLK_QCOM [=m] && (ARM64 || COMPILE_TEST [=n])
   Selected by [m]:
   - SM_VIDEOCC_8350 [=m] && COMMON_CLK [=y] && COMMON_CLK_QCOM [=m]
   WARNING: unmet direct dependencies detected for SM_GCC_8450
   Depends on [n]: COMMON_CLK [=y] && COMMON_CLK_QCOM [=m] && (ARM64 || COMPILE_TEST [=n])
   Selected by [m]:
   - SM_GPUCC_8450 [=m] && COMMON_CLK [=y] && COMMON_CLK_QCOM [=m]
   - SM_VIDEOCC_8450 [=m] && COMMON_CLK [=y] && COMMON_CLK_QCOM [=m]
   WARNING: unmet direct dependencies detected for SM_GCC_8550
   Depends on [n]: COMMON_CLK [=y] && COMMON_CLK_QCOM [=m] && (ARM64 || COMPILE_TEST [=n])
   Selected by [m]:
   - SM_GPUCC_8550 [=m] && COMMON_CLK [=y] && COMMON_CLK_QCOM [=m]
   - SM_VIDEOCC_8550 [=m] && COMMON_CLK [=y] && COMMON_CLK_QCOM [=m]


vim +/FIELD_PREP +459 drivers/firmware/qcom_scm.c

   443	
   444	static void qcom_scm_set_download_mode(bool enable)
   445	{
   446		bool avail;
   447		int val;
   448		int ret = 0;
   449	
   450		avail = __qcom_scm_is_call_available(__scm->dev,
   451						     QCOM_SCM_SVC_BOOT,
   452						     QCOM_SCM_BOOT_SET_DLOAD_MODE);
   453		if (avail) {
   454			ret = __qcom_scm_set_dload_mode(__scm->dev, enable);
   455		} else if (__scm->dload_mode_addr) {
   456			val = enable ? QCOM_DOWNLOAD_FULLDUMP : QCOM_DOWNLOAD_NODUMP;
   457			ret = qcom_scm_io_update_field(__scm->dload_mode_addr,
   458						       QCOM_DOWNLOAD_MODE_MASK,
 > 459						       FIELD_PREP(QCOM_DOWNLOAD_MODE_MASK, val));
   460		} else {
   461			dev_err(__scm->dev,
   462				"No available mechanism for setting download mode\n");
   463		}
   464	
   465		if (ret)
   466			dev_err(__scm->dev, "failed to set download mode: %d\n", ret);
   467	}
   468	

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