linux-kernel - include/linux/compiler_types.h:338:38: error: call to '__compiletime_assert_603' declared with attribute error: must adapt SMC_WR_TX_SIZE to sizeof(struct smc_llc_msg); if not all smc_wr upper layer protocols use the same message size any more, must start...

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Date:   Wed, 10 Feb 2021 16:58:46 +0800
From:   kernel test robot <lkp@...el.com>
To:     Will Deacon <will@...nel.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: include/linux/compiler_types.h:338:38: error: call to
 '__compiletime_assert_603' declared with attribute error: must adapt
 SMC_WR_TX_SIZE to sizeof(struct smc_llc_msg); if not all smc_wr upper layer
 protocols use the same message size any more, must start...

Hi Will,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   e0756cfc7d7cd08c98a53b6009c091a3f6a50be6
commit: eb5c2d4b45e3d2d5d052ea6b8f1463976b1020d5 compiler.h: Move compiletime_assert() macros into compiler_types.h
date:   7 months ago
config: arm-randconfig-s032-20210209 (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.3-215-g0fb77bb6-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=eb5c2d4b45e3d2d5d052ea6b8f1463976b1020d5
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout eb5c2d4b45e3d2d5d052ea6b8f1463976b1020d5
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=arm 

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>:
   net/smc/smc_llc.c: In function 'smc_llc_add_pending_send':
   include/linux/compiler_types.h:338:38: error: call to '__compiletime_assert_602' declared with attribute error: must increase SMC_WR_BUF_SIZE to at least sizeof(struct smc_llc_msg)
     338 |  _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |                                      ^
   include/linux/compiler_types.h:319:4: note: in definition of macro '__compiletime_assert'
     319 |    prefix ## suffix();    \
         |    ^~~~~~
   include/linux/compiler_types.h:338:2: note: in expansion of macro '_compiletime_assert'
     338 |  _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)
         |                                     ^~~~~~~~~~~~~~~~~~
   net/smc/smc_llc.c:348:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
     348 |  BUILD_BUG_ON_MSG(
         |  ^~~~~~~~~~~~~~~~
>> include/linux/compiler_types.h:338:38: error: call to '__compiletime_assert_603' declared with attribute error: must adapt SMC_WR_TX_SIZE to sizeof(struct smc_llc_msg); if not all smc_wr upper layer protocols use the same message size any more, must start to set link->wr_tx_sges[i].length on each individual smc_wr_tx_send()
     338 |  _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |                                      ^
   include/linux/compiler_types.h:319:4: note: in definition of macro '__compiletime_assert'
     319 |    prefix ## suffix();    \
         |    ^~~~~~
   include/linux/compiler_types.h:338:2: note: in expansion of macro '_compiletime_assert'
     338 |  _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)
         |                                     ^~~~~~~~~~~~~~~~~~
   net/smc/smc_llc.c:351:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
     351 |  BUILD_BUG_ON_MSG(
         |  ^~~~~~~~~~~~~~~~
--
   In file included from <command-line>:
   In function 'smc_cdc_add_pending_send',
       inlined from 'smc_cdc_msg_send' at net/smc/smc_cdc.c:101:2:
>> include/linux/compiler_types.h:338:38: error: call to '__compiletime_assert_580' declared with attribute error: must increase SMC_WR_BUF_SIZE to at least sizeof(struct smc_cdc_msg)
     338 |  _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |                                      ^
   include/linux/compiler_types.h:319:4: note: in definition of macro '__compiletime_assert'
     319 |    prefix ## suffix();    \
         |    ^~~~~~
   include/linux/compiler_types.h:338:2: note: in expansion of macro '_compiletime_assert'
     338 |  _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)
         |                                     ^~~~~~~~~~~~~~~~~~
   net/smc/smc_cdc.c:78:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      78 |  BUILD_BUG_ON_MSG(
         |  ^~~~~~~~~~~~~~~~
>> include/linux/compiler_types.h:338:38: error: call to '__compiletime_assert_581' declared with attribute error: must adapt SMC_WR_TX_SIZE to sizeof(struct smc_cdc_msg); if not all smc_wr upper layer protocols use the same message size any more, must start to set link->wr_tx_sges[i].length on each individual smc_wr_tx_send()
     338 |  _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |                                      ^
   include/linux/compiler_types.h:319:4: note: in definition of macro '__compiletime_assert'
     319 |    prefix ## suffix();    \
         |    ^~~~~~
   include/linux/compiler_types.h:338:2: note: in expansion of macro '_compiletime_assert'
     338 |  _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)
         |                                     ^~~~~~~~~~~~~~~~~~
   net/smc/smc_cdc.c:81:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      81 |  BUILD_BUG_ON_MSG(
         |  ^~~~~~~~~~~~~~~~


vim +/__compiletime_assert_603 +338 include/linux/compiler_types.h

   324	
   325	#define _compiletime_assert(condition, msg, prefix, suffix) \
   326		__compiletime_assert(condition, msg, prefix, suffix)
   327	
   328	/**
   329	 * compiletime_assert - break build and emit msg if condition is false
   330	 * @condition: a compile-time constant condition to check
   331	 * @msg:       a message to emit if condition is false
   332	 *
   333	 * In tradition of POSIX assert, this macro will break the build if the
   334	 * supplied condition is *false*, emitting the supplied error message if the
   335	 * compiler has support to do so.
   336	 */
   337	#define compiletime_assert(condition, msg) \
 > 338		_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
   339	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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