Re: [PATCH v2] i2c: lpi2c: cache peripheral clock rate

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Hi Sverdlin,

I love your patch! Yet something to improve:

[auto build test ERROR on wsa/i2c/for-next]
[also build test ERROR on linus/master v6.3-rc1 next-20230310]
[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/A-Sverdlin/i2c-lpi2c-cache-peripheral-clock-rate/20230310-192720
base:   https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git i2c/for-next
patch link:    https://lore.kernel.org/r/20230310112605.476922-1-alexander.sverdlin%40siemens.com
patch subject: [PATCH v2] i2c: lpi2c: cache peripheral clock rate
config: arm64-buildonly-randconfig-r002-20230310 (https://download.01.org/0day-ci/archive/20230310/202303102026.xZsE7TNu-lkp@xxxxxxxxx/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 67409911353323ca5edf2049ef0df54132fa1ca7)
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
        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://github.com/intel-lab-lkp/linux/commit/aa3870869fbb164ebdc12f412c07c66f1d7cdf2d
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review A-Sverdlin/i2c-lpi2c-cache-peripheral-clock-rate/20230310-192720
        git checkout aa3870869fbb164ebdc12f412c07c66f1d7cdf2d
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/i2c/busses/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Link: https://lore.kernel.org/oe-kbuild-all/202303102026.xZsE7TNu-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

>> drivers/i2c/busses/i2c-imx-lpi2c.c:209:10: error: no member named 'clk_per' in 'struct lpi2c_imx_struct'
                                                             clk_per);
                                                             ^~~~~~~~
   include/linux/container_of.h:20:49: note: expanded from macro 'container_of'
           static_assert(__same_type(*(ptr), ((type *)0)->member) ||       \
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
   include/linux/compiler_types.h:338:74: note: expanded from macro '__same_type'
   #define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b))
                                                                            ^
   include/linux/build_bug.h:77:50: note: expanded from macro 'static_assert'
   #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
                                    ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:78:56: note: expanded from macro '__static_assert'
   #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
                                                          ^~~~
>> drivers/i2c/busses/i2c-imx-lpi2c.c:207:39: error: no member named 'clk_per' in 'lpi2c_imx_struct'
           struct lpi2c_imx_struct *lpi2c_imx = container_of(&ndata->clk,
                                                ^
   include/linux/container_of.h:23:21: note: expanded from macro 'container_of'
           ((type *)(__mptr - offsetof(type, member))); })
                              ^              ~~~~~~
   include/linux/stddef.h:16:32: note: expanded from macro 'offsetof'
   #define offsetof(TYPE, MEMBER)  __builtin_offsetof(TYPE, MEMBER)
                                   ^                        ~~~~~~
>> drivers/i2c/busses/i2c-imx-lpi2c.c:207:27: error: initializing 'struct lpi2c_imx_struct *' with an expression of incompatible type 'void'
           struct lpi2c_imx_struct *lpi2c_imx = container_of(&ndata->clk,
                                    ^           ~~~~~~~~~~~~~~~~~~~~~~~~~
   3 errors generated.


vim +209 drivers/i2c/busses/i2c-imx-lpi2c.c

   202	
   203	static int lpi2c_imx_clk_change_cb(struct notifier_block *nb,
   204					   unsigned long action, void *data)
   205	{
   206		struct clk_notifier_data *ndata = data;
 > 207		struct lpi2c_imx_struct *lpi2c_imx = container_of(&ndata->clk,
   208								  struct lpi2c_imx_struct,
 > 209								  clk_per);
   210	
   211		if (action & POST_RATE_CHANGE)
   212			lpi2c_imx->rate_per = ndata->new_rate;
   213	
   214		return NOTIFY_OK;
   215	}
   216	

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



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