Hi, kernel test robot noticed the following build errors: [auto build test ERROR on awilliam-vfio/next] [also build test ERROR on awilliam-vfio/for-linus linus/master v6.15-rc7 next-20250516] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/lizhe-67-bytedance-com/vfio-type1-optimize-vfio_pin_pages_remote-for-huge-folio/20250520-150123 base: https://github.com/awilliam/linux-vfio.git next patch link: https://lore.kernel.org/r/20250520070020.6181-1-lizhe.67%40bytedance.com patch subject: [PATCH v3] vfio/type1: optimize vfio_pin_pages_remote() for huge folio config: i386-randconfig-013-20250521 (https://download.01.org/0day-ci/archive/20250521/202505210701.WY7sKXwU-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250521/202505210701.WY7sKXwU-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/202505210701.WY7sKXwU-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from <command-line>: drivers/vfio/vfio_iommu_type1.c: In function 'vfio_pin_pages_remote': >> include/linux/compiler_types.h:542:45: error: call to '__compiletime_assert_499' declared with attribute error: min((long)batch->size, folio_nr_pages(folio) - (({ const struct page *__pg = (batch->pages[batch->offset]); int __sec = page_to_section(__pg); (unsigned long)(__pg - __section_mem_map_addr(__nr_to_section(__sec))); }) - folio_pfn(folio))) signedness error 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:93:9: note: in expansion of macro 'BUILD_BUG_ON_MSG' 93 | BUILD_BUG_ON_MSG(!__types_ok(ux, uy), \ | ^~~~~~~~~~~~~~~~ include/linux/minmax.h:98:9: note: in expansion of macro '__careful_cmp_once' 98 | __careful_cmp_once(op, x, y, __UNIQUE_ID(x_), __UNIQUE_ID(y_)) | ^~~~~~~~~~~~~~~~~~ include/linux/minmax.h:105:25: note: in expansion of macro '__careful_cmp' 105 | #define min(x, y) __careful_cmp(min, x, y) | ^~~~~~~~~~~~~ drivers/vfio/vfio_iommu_type1.c:709:36: note: in expansion of macro 'min' 709 | nr_pages = min((long)batch->size, folio_nr_pages(folio) - | ^~~ -- In file included from <command-line>: vfio_iommu_type1.c: In function 'vfio_pin_pages_remote': >> include/linux/compiler_types.h:542:45: error: call to '__compiletime_assert_499' declared with attribute error: min((long)batch->size, folio_nr_pages(folio) - (({ const struct page *__pg = (batch->pages[batch->offset]); int __sec = page_to_section(__pg); (unsigned long)(__pg - __section_mem_map_addr(__nr_to_section(__sec))); }) - folio_pfn(folio))) signedness error 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:93:9: note: in expansion of macro 'BUILD_BUG_ON_MSG' 93 | BUILD_BUG_ON_MSG(!__types_ok(ux, uy), \ | ^~~~~~~~~~~~~~~~ include/linux/minmax.h:98:9: note: in expansion of macro '__careful_cmp_once' 98 | __careful_cmp_once(op, x, y, __UNIQUE_ID(x_), __UNIQUE_ID(y_)) | ^~~~~~~~~~~~~~~~~~ include/linux/minmax.h:105:25: note: in expansion of macro '__careful_cmp' 105 | #define min(x, y) __careful_cmp(min, x, y) | ^~~~~~~~~~~~~ vfio_iommu_type1.c:709:36: note: in expansion of macro 'min' 709 | nr_pages = min((long)batch->size, folio_nr_pages(folio) - | ^~~ vim +/__compiletime_assert_499 +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 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
