linux-kernel - Re: [PATCH 5/5] rtc: jz4740: Support for fine-tuning the RTC clock

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Message-ID: <202204191251.t9r8gFyI-lkp@intel.com>
Date:   Tue, 19 Apr 2022 12:32:37 +0800
From:   kernel test robot <lkp@...el.com>
To:     Paul Cercueil <paul@...pouillou.net>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc:     kbuild-all@...ts.01.org, list@...ndingux.net,
        linux-rtc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mips@...r.kernel.org,
        Paul Cercueil <paul@...pouillou.net>
Subject: Re: [PATCH 5/5] rtc: jz4740: Support for fine-tuning the RTC clock

Hi Paul,

I love your patch! Yet something to improve:

[auto build test ERROR on abelloni/rtc-next]
[also build test ERROR on v5.18-rc3 next-20220414]
[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]

url:    https://github.com/intel-lab-lkp/linux/commits/Paul-Cercueil/rtc-ingenic-various-updates/20220419-025341
base:   https://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux.git rtc-next
config: sparc64-randconfig-r024-20220418 (https://download.01.org/0day-ci/archive/20220419/202204191251.t9r8gFyI-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 11.2.0
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/ba459adc8c83dbdc469d0c6b5d57fd95d834513a
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Paul-Cercueil/rtc-ingenic-various-updates/20220419-025341
        git checkout ba459adc8c83dbdc469d0c6b5d57fd95d834513a
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=sparc64 SHELL=/bin/bash drivers/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   In file included from <command-line>:
   drivers/rtc/rtc-jz4740.c: In function 'jz4740_rtc_set_offset':
>> include/linux/compiler_types.h:346:45: error: call to '__compiletime_assert_229' declared with attribute error: FIELD_PREP: value too large for the field
     346 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |                                             ^
   include/linux/compiler_types.h:327:25: note: in definition of macro '__compiletime_assert'
     327 |                         prefix ## suffix();                             \
         |                         ^~~~~~
   include/linux/compiler_types.h:346:9: note: in expansion of macro '_compiletime_assert'
     346 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   include/linux/bitfield.h:65:17: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      65 |                 BUILD_BUG_ON_MSG(__builtin_constant_p(_val) ?           \
         |                 ^~~~~~~~~~~~~~~~
   include/linux/bitfield.h:111:17: note: in expansion of macro '__BF_FIELD_CHECK'
     111 |                 __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: ");    \
         |                 ^~~~~~~~~~~~~~~~
   drivers/rtc/rtc-jz4740.c:261:17: note: in expansion of macro 'FIELD_PREP'
     261 |         nc1hz = FIELD_PREP(JZ_RTC_REGULATOR_NC1HZ_MASK, nc1hz);
         |                 ^~~~~~~~~~


vim +/__compiletime_assert_229 +346 include/linux/compiler_types.h

eb5c2d4b45e3d2 Will Deacon 2020-07-21  332  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  333  #define _compiletime_assert(condition, msg, prefix, suffix) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21  334  	__compiletime_assert(condition, msg, prefix, suffix)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  335  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  336  /**
eb5c2d4b45e3d2 Will Deacon 2020-07-21  337   * compiletime_assert - break build and emit msg if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  338   * @condition: a compile-time constant condition to check
eb5c2d4b45e3d2 Will Deacon 2020-07-21  339   * @msg:       a message to emit if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  340   *
eb5c2d4b45e3d2 Will Deacon 2020-07-21  341   * In tradition of POSIX assert, this macro will break the build if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  342   * supplied condition is *false*, emitting the supplied error message if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  343   * compiler has support to do so.
eb5c2d4b45e3d2 Will Deacon 2020-07-21  344   */
eb5c2d4b45e3d2 Will Deacon 2020-07-21  345  #define compiletime_assert(condition, msg) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 @346  	_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  347  

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