[linux-next:master 8324/9557] include/linux/compiler_types.h:568:38: error: call to '__compiletime_assert_614' declared with attribute error: min(__x, __y) signedness error

[linux-next:master 8324/9557] include/linux/compiler_types.h:568:38: error: call to '__compiletime_assert_614' declared with attribute error: min(__x, __y) signedness error

[kernel test robot]

Hi Jens,

FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   0be23810e32e6d0a17df7c0ebad895ba2c210fc4
commit: e227c8cdb47b586ebf20b6b4caca0a30bb7e6b68 [8324/9557] io_uring/net: use passed in 'len' in io_recv_buf_select()
config: xtensa-randconfig-r123-20250714 (https://download.01.org/0day-ci/archive/20250715/202507150504.zO5FsCPm-lkp@intel.com/config)
compiler: xtensa-linux-gcc (GCC) 8.5.0
reproduce: (https://download.01.org/0day-ci/archive/20250715/202507150504.zO5FsCPm-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202507150504.zO5FsCPm-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from <command-line>:
   In function 'io_recv_buf_select',
       inlined from 'io_recv' at io_uring/net.c:1145:9:
>> include/linux/compiler_types.h:568:38: error: call to '__compiletime_assert_614' declared with attribute error: min(__x, __y) signedness error
     _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
                                         ^
   include/linux/compiler_types.h:549:4: note: in definition of macro '__compiletime_assert'
       prefix ## suffix();    \
       ^~~~~~
   include/linux/compiler_types.h:568:2: note: in expansion of macro '_compiletime_assert'
     _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
     ^~~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
    #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
                                        ^~~~~~~~~~~~~~~~~~
   include/linux/minmax.h:93:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
     BUILD_BUG_ON_MSG(!__types_ok(ux, uy),  \
     ^~~~~~~~~~~~~~~~
   include/linux/minmax.h:98:2: note: in expansion of macro '__careful_cmp_once'
     __careful_cmp_once(op, x, y, __UNIQUE_ID(x_), __UNIQUE_ID(y_))
     ^~~~~~~~~~~~~~~~~~
   include/linux/minmax.h:105:19: note: in expansion of macro '__careful_cmp'
    #define min(x, y) __careful_cmp(min, x, y)
                      ^~~~~~~~~~~~~
   include/linux/minmax.h:179:39: note: in expansion of macro 'min'
     __x == 0 ? __y : ((__y == 0) ? __x : min(__x, __y)); })
                                          ^~~
   io_uring/net.c:1079:18: note: in expansion of macro 'min_not_zero'
       arg.max_len = min_not_zero(*len, kmsg->msg.msg_inq);
                     ^~~~~~~~~~~~


vim +/__compiletime_assert_614 +568 include/linux/compiler_types.h

eb5c2d4b45e3d2 Will Deacon 2020-07-21  554  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  555  #define _compiletime_assert(condition, msg, prefix, suffix) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21  556  	__compiletime_assert(condition, msg, prefix, suffix)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  557  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  558  /**
eb5c2d4b45e3d2 Will Deacon 2020-07-21  559   * compiletime_assert - break build and emit msg if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  560   * @condition: a compile-time constant condition to check
eb5c2d4b45e3d2 Will Deacon 2020-07-21  561   * @msg:       a message to emit if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  562   *
eb5c2d4b45e3d2 Will Deacon 2020-07-21  563   * In tradition of POSIX assert, this macro will break the build if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  564   * supplied condition is *false*, emitting the supplied error message if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  565   * compiler has support to do so.
eb5c2d4b45e3d2 Will Deacon 2020-07-21  566   */
eb5c2d4b45e3d2 Will Deacon 2020-07-21  567  #define compiletime_assert(condition, msg) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 @568  	_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  569  

:::::: The code at line 568 was first introduced by commit
:::::: eb5c2d4b45e3d2d5d052ea6b8f1463976b1020d5 compiler.h: Move compiletime_assert() macros into compiler_types.h

:::::: TO: Will Deacon <will@kernel.org>
:::::: CC: Will Deacon <will@kernel.org>

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