tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-nonmm-unstable head: cedff7a221491210ded37efd786e4095067faa84 commit: 08015b572224e06c290793e2b8be3cc94875d37b [42/141] minmax.h: use BUILD_BUG_ON_MSG() for the lo < hi test in clamp() config: parisc-allmodconfig (https://download.01.org/0day-ci/archive/20250104/202501040446.CrPCDN4l-lkp@xxxxxxxxx/config) compiler: hppa-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250104/202501040446.CrPCDN4l-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202501040446.CrPCDN4l-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from <command-line>: drivers/gpu/drm/i915/display/intel_backlight.c: In function 'scale': >> include/linux/compiler_types.h:542:45: error: call to '__compiletime_assert_413' declared with attribute error: clamp() low limit source_min greater than high limit source_max 542 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^ include/linux/compiler_types.h:523:25: note: in definition of macro '__compiletime_assert' 523 | prefix ## suffix(); \ | ^~~~~~ include/linux/compiler_types.h:542:9: note: in expansion of macro '_compiletime_assert' 542 | _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/minmax.h:109:9: note: in expansion of macro 'BUILD_BUG_ON_MSG' 109 | BUILD_BUG_ON_MSG(statically_true(ulo > uhi), \ | ^~~~~~~~~~~~~~~~ include/linux/minmax.h:116:9: note: in expansion of macro '__clamp_once' 116 | __clamp_once(val, lo, hi, __UNIQUE_ID(v_), __UNIQUE_ID(l_), __UNIQUE_ID(h_)) | ^~~~~~~~~~~~ include/linux/minmax.h:192:28: note: in expansion of macro '__careful_clamp' 192 | #define clamp(val, lo, hi) __careful_clamp(val, lo, hi) | ^~~~~~~~~~~~~~~ drivers/gpu/drm/i915/display/intel_backlight.c:47:22: note: in expansion of macro 'clamp' 47 | source_val = clamp(source_val, source_min, source_max); | ^~~~~ vim +/__compiletime_assert_413 +542 include/linux/compiler_types.h eb5c2d4b45e3d2 Will Deacon 2020-07-21 528 eb5c2d4b45e3d2 Will Deacon 2020-07-21 529 #define _compiletime_assert(condition, msg, prefix, suffix) \ eb5c2d4b45e3d2 Will Deacon 2020-07-21 530 __compiletime_assert(condition, msg, prefix, suffix) eb5c2d4b45e3d2 Will Deacon 2020-07-21 531 eb5c2d4b45e3d2 Will Deacon 2020-07-21 532 /** eb5c2d4b45e3d2 Will Deacon 2020-07-21 533 * compiletime_assert - break build and emit msg if condition is false eb5c2d4b45e3d2 Will Deacon 2020-07-21 534 * @condition: a compile-time constant condition to check eb5c2d4b45e3d2 Will Deacon 2020-07-21 535 * @msg: a message to emit if condition is false eb5c2d4b45e3d2 Will Deacon 2020-07-21 536 * eb5c2d4b45e3d2 Will Deacon 2020-07-21 537 * In tradition of POSIX assert, this macro will break the build if the eb5c2d4b45e3d2 Will Deacon 2020-07-21 538 * supplied condition is *false*, emitting the supplied error message if the eb5c2d4b45e3d2 Will Deacon 2020-07-21 539 * compiler has support to do so. eb5c2d4b45e3d2 Will Deacon 2020-07-21 540 */ eb5c2d4b45e3d2 Will Deacon 2020-07-21 541 #define compiletime_assert(condition, msg) \ eb5c2d4b45e3d2 Will Deacon 2020-07-21 @542 _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) eb5c2d4b45e3d2 Will Deacon 2020-07-21 543 :::::: The code at line 542 was first introduced by commit :::::: eb5c2d4b45e3d2d5d052ea6b8f1463976b1020d5 compiler.h: Move compiletime_assert() macros into compiler_types.h :::::: TO: Will Deacon <will@xxxxxxxxxx> :::::: CC: Will Deacon <will@xxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
