Re: [PATCH] rtc: abx80x: Add nvmem support

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On 12/3/22 03:45, kernel test robot wrote:
> Hi Sean,
> 
> I love your patch! Yet something to improve:
> 
> [auto build test ERROR on v6.1-rc7]
> [also build test ERROR on linus/master]
> [cannot apply to abelloni/rtc-next next-20221202]
> [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/Sean-Anderson/rtc-abx80x-Add-nvmem-support/20221202-070301
> patch link:    https://lore.kernel.org/r/20221201230208.713118-1-sean.anderson%40seco.com
> patch subject: [PATCH] rtc: abx80x: Add nvmem support
> config: x86_64-randconfig-a014
> compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
> reproduce (this is a W=1 build):
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # https://github.com/intel-lab-lkp/linux/commit/6dbbdf7eef71cb4255c6751bc9762cf02a0f53b6
>         git remote add linux-review https://github.com/intel-lab-lkp/linux
>         git fetch --no-tags linux-review Sean-Anderson/rtc-abx80x-Add-nvmem-support/20221202-070301
>         git checkout 6dbbdf7eef71cb4255c6751bc9762cf02a0f53b6
>         # save the config file
>         mkdir build_dir && cp config build_dir/.config
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash
> 
> If you fix the issue, kindly add following tag where applicable
> | Reported-by: kernel test robot <lkp@xxxxxxxxx>
> 
> All errors (new ones prefixed by >>):
> 
>>> drivers/rtc/rtc-abx80x.c:695:11: error: implicit declaration of function 'FIELD_GET' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
>                    lower = FIELD_GET(NVMEM_ADDR_LOWER, offset);
>                            ^
>>> drivers/rtc/rtc-abx80x.c:697:12: error: implicit declaration of function 'FIELD_PREP' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
>                    extram = FIELD_PREP(ABX8XX_EXTRAM_XADS, upper);
>                             ^
>    drivers/rtc/rtc-abx80x.c:697:12: note: did you mean 'FIELD_GET'?
>    drivers/rtc/rtc-abx80x.c:695:11: note: 'FIELD_GET' declared here
>                    lower = FIELD_GET(NVMEM_ADDR_LOWER, offset);
>                            ^
>    2 errors generated.
> 
> 
> vim +/FIELD_GET +695 drivers/rtc/rtc-abx80x.c
> 
>    685	
>    686	#ifdef CONFIG_NVMEM
>    687	static int abx80x_nvmem_xfer(struct abx80x_priv *priv, unsigned int offset,
>    688				     void *val, size_t bytes, bool write)
>    689	{
>    690		int ret;
>    691	
>    692		while (bytes) {
>    693			u8 extram, reg, len, lower, upper;
>    694	
>  > 695			lower = FIELD_GET(NVMEM_ADDR_LOWER, offset);
>    696			upper = FIELD_GET(NVMEM_ADDR_UPPER, offset);
>  > 697			extram = FIELD_PREP(ABX8XX_EXTRAM_XADS, upper);
>    698			reg = ABX8XX_SRAM_BASE + lower;
>    699			len = min(lower + bytes, (size_t)ABX8XX_SRAM_WIN_SIZE) - lower;
>    700			len = min_t(u8, len, I2C_SMBUS_BLOCK_MAX);
>    701	
>    702			ret = i2c_smbus_write_byte_data(priv->client, ABX8XX_REG_EXTRAM,
>    703							extram);
>    704			if (ret)
>    705				return ret;
>    706	
>    707			if (write)
>    708				ret = i2c_smbus_write_i2c_block_data(priv->client, reg,
>    709								     len, val);
>    710			else
>    711				ret = i2c_smbus_read_i2c_block_data(priv->client, reg,
>    712								    len, val);
>    713			if (ret)
>    714				return ret;
>    715	
>    716			offset += len;
>    717			val += len;
>    718			bytes -= len;
>    719		}
>    720	
>    721		return 0;
>    722	}
>    723	
> 

Ah, the ARM64 bitfield inclusion strikes again...

--Sean



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