Hi Emerson, kernel test robot noticed the following build warnings:
[auto build test WARNING on char-misc/char-misc-testing] [also build test WARNING on char-misc/char-misc-next char-misc/char-misc-linus linus/master v7.3-rc6 next-20261008] [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/Emerson-Busson/hv-vmbus-convert-ring-backing-through-the-chunk-allocator/20261007-160739 base: char-misc/char-misc-testing patch link: https://lore.kernel.org/r/20261007190752.336426-11-emersonbusson%40gmail.com patch subject: [PATCH v2 10/14] hv: vmbus: pin buffer pages across UIO mmap to close the reclaim race config: i386-randconfig-1013-20261008 (https://download.01.org/0day-ci/archive/20261009/[email protected]/config) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261009/[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 warnings (new ones prefixed by >>): In file included from include/linux/dev_printk.h:14, from include/linux/device.h:15, from drivers/uio/uio_hv_generic.c:22: drivers/uio/uio_hv_generic_mmap_test.c: In function 'hv_uio_ring_mmap_range_test': >> include/linux/limits.h:25:25: warning: conversion from 'long long unsigned >> int' to 'long unsigned int' changes value from '18446744073709551615' to >> '4294967295' [-Woverflow] 25 | #define U64_MAX ((u64)~0ULL) | ^~~~~~~~~~~~ include/linux/compiler.h:76:45: note: in definition of macro 'likely' 76 | # define likely(x) __builtin_expect(!!(x), 1) | ^ include/kunit/test.h:810:9: note: in expansion of macro 'KUNIT_UNARY_ASSERTION' 810 | KUNIT_UNARY_ASSERTION(test, \ | ^~~~~~~~~~~~~~~~~~~~~ include/kunit/test.h:1017:9: note: in expansion of macro 'KUNIT_FALSE_MSG_ASSERTION' 1017 | KUNIT_FALSE_MSG_ASSERTION(test, \ | ^~~~~~~~~~~~~~~~~~~~~~~~~ include/kunit/test.h:1014:9: note: in expansion of macro 'KUNIT_EXPECT_FALSE_MSG' 1014 | KUNIT_EXPECT_FALSE_MSG(test, condition, NULL) | ^~~~~~~~~~~~~~~~~~~~~~ drivers/uio/uio_hv_generic_mmap_test.c:35:9: note: in expansion of macro 'KUNIT_EXPECT_FALSE' 35 | KUNIT_EXPECT_FALSE(test, | ^~~~~~~~~~~~~~~~~~ drivers/uio/uio_hv_generic_mmap_test.c:36:55: note: in expansion of macro 'U64_MAX' 36 | hv_uio_mmap_range_valid(8, U64_MAX, 1)); | ^~~~~~~ vim +25 include/linux/limits.h 3c9d017cc283df Andy Shevchenko 2023-08-04 14 54d50897d544c8 Masahiro Yamada 2019-03-07 15 #define U8_MAX ((u8)~0U) 54d50897d544c8 Masahiro Yamada 2019-03-07 16 #define S8_MAX ((s8)(U8_MAX >> 1)) 54d50897d544c8 Masahiro Yamada 2019-03-07 17 #define S8_MIN ((s8)(-S8_MAX - 1)) 54d50897d544c8 Masahiro Yamada 2019-03-07 18 #define U16_MAX ((u16)~0U) 54d50897d544c8 Masahiro Yamada 2019-03-07 19 #define S16_MAX ((s16)(U16_MAX >> 1)) 54d50897d544c8 Masahiro Yamada 2019-03-07 20 #define S16_MIN ((s16)(-S16_MAX - 1)) 54d50897d544c8 Masahiro Yamada 2019-03-07 21 #define U32_MAX ((u32)~0U) 3f50f132d8400e John Fastabend 2020-03-30 22 #define U32_MIN ((u32)0) 54d50897d544c8 Masahiro Yamada 2019-03-07 23 #define S32_MAX ((s32)(U32_MAX >> 1)) 54d50897d544c8 Masahiro Yamada 2019-03-07 24 #define S32_MIN ((s32)(-S32_MAX - 1)) 54d50897d544c8 Masahiro Yamada 2019-03-07 @25 #define U64_MAX ((u64)~0ULL) 54d50897d544c8 Masahiro Yamada 2019-03-07 26 #define S64_MAX ((s64)(U64_MAX >> 1)) 54d50897d544c8 Masahiro Yamada 2019-03-07 27 #define S64_MIN ((s64)(-S64_MAX - 1)) 54d50897d544c8 Masahiro Yamada 2019-03-07 28 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
