include/linux/compiler_types.h:572:38: error: call to '__compiletime_assert_659' declared with attribute error: min(__x, __y) signedness error
kernel test robot
build bottree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 33bcf93b9a6b028758105680f8b538a31bc563cf commit: 429884ff35f75a8ac3e8f822f483e220e3ea6394 [3231/5291] io_uring/kbuf: use struct io_br_sel for multiple buffers picking config: sparc-randconfig-002-20250902 (https://download.01.org/0day-ci/archive/20250902/[email protected]/config) compiler: sparc64-linux-gcc (GCC) 8.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250902/[email protected]/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 <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
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:1199:9:
>> include/linux/compiler_types.h:572:38: error: call to '__compiletime_assert_659' declared with attribute error: min(__x, __y) signedness error
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
^
include/linux/compiler_types.h:553:4: note: in definition of macro '__compiletime_assert'
prefix ## suffix(); \
^~~~~~
include/linux/compiler_types.h:572:2: 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:1130:18: note: in expansion of macro 'min_not_zero'
arg.max_len = min_not_zero(sel->val, (size_t) kmsg->msg.msg_inq);
^~~~~~~~~~~~vim +/__compiletime_assert_659 +572 include/linux/compiler_types.h
eb5c2d4b45e3d2 Will Deacon 2020-07-21 558 eb5c2d4b45e3d2 Will Deacon 2020-07-21 559 #define _compiletime_assert(condition, msg, prefix, suffix) \ eb5c2d4b45e3d2 Will Deacon 2020-07-21 560 __compiletime_assert(condition, msg, prefix, suffix) eb5c2d4b45e3d2 Will Deacon 2020-07-21 561 eb5c2d4b45e3d2 Will Deacon 2020-07-21 562 /** eb5c2d4b45e3d2 Will Deacon 2020-07-21 563 * compiletime_assert - break build and emit msg if condition is false eb5c2d4b45e3d2 Will Deacon 2020-07-21 564 * @condition: a compile-time constant condition to check eb5c2d4b45e3d2 Will Deacon 2020-07-21 565 * @msg: a message to emit if condition is false eb5c2d4b45e3d2 Will Deacon 2020-07-21 566 * eb5c2d4b45e3d2 Will Deacon 2020-07-21 567 * In tradition of POSIX assert, this macro will break the build if the eb5c2d4b45e3d2 Will Deacon 2020-07-21 568 * supplied condition is *false*, emitting the supplied error message if the eb5c2d4b45e3d2 Will Deacon 2020-07-21 569 * compiler has support to do so. eb5c2d4b45e3d2 Will Deacon 2020-07-21 570 */ eb5c2d4b45e3d2 Will Deacon 2020-07-21 571 #define compiletime_assert(condition, msg) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 @572 _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)eb5c2d4b45e3d2 Will Deacon 2020-07-21 573
:::::: The code at line 572 was first introduced by commit
:::::: eb5c2d4b45e3d2d5d052ea6b8f1463976b1020d5 compiler.h: Move compiletime_assert() macros into compiler_types.h
:::::: TO: Will Deacon <[email protected]>
:::::: CC: Will Deacon <[email protected]>
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