Hi Prabhakar, kernel test robot noticed the following build errors: [auto build test ERROR on jejb-scsi/for-next] [also build test ERROR on mkp-scsi/for-next linus/master v6.10-rc5 next-20240626] [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/Prabhakar-Pujeri/scsi-advansys-Simplified-memcpy-length-calculation-in-adv_build_req/20240626-231800 base: https://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi.git for-next patch link: https://lore.kernel.org/r/20240626101342.1440049-15-prabhakar.pujeri%40gmail.com patch subject: [PATCH 14/14] scsi: st: Used max() for buffer size in setup_buffering and Simplified transfer calculations in st_read, append_to_buffer, and from_buffer config: arm-randconfig-001-20240627 (https://download.01.org/0day-ci/archive/20240627/202406271136.iI4L3oPV-lkp@xxxxxxxxx/config) compiler: arm-linux-gnueabi-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240627/202406271136.iI4L3oPV-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/202406271136.iI4L3oPV-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from include/linux/container_of.h:5, from include/linux/list.h:5, from include/linux/module.h:12, from drivers/scsi/st.c:23: drivers/scsi/st.c: In function 'st_read': >> include/linux/build_bug.h:78:41: error: static assertion failed: "min(STbp->buffer_bytes, count - total) signedness error, fix types or consider umin() before min_t()" 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~~~~~~~~~~~ include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert' 77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr) | ^~~~~~~~~~~~~~~ include/linux/minmax.h:51:9: note: in expansion of macro 'static_assert' 51 | static_assert(__types_ok(x, y), \ | ^~~~~~~~~~~~~ include/linux/minmax.h:58:17: note: in expansion of macro '__cmp_once' 58 | __cmp_once(op, x, y, __UNIQUE_ID(__x), __UNIQUE_ID(__y))) | ^~~~~~~~~~ include/linux/minmax.h:85:25: note: in expansion of macro '__careful_cmp' 85 | #define min(x, y) __careful_cmp(min, x, y) | ^~~~~~~~~~~~~ drivers/scsi/st.c:2189:36: note: in expansion of macro 'min' 2189 | transfer = min(STbp->buffer_bytes, count - total); | ^~~ vim +78 include/linux/build_bug.h bc6245e5efd70c Ian Abbott 2017-07-10 60 6bab69c65013be Rasmus Villemoes 2019-03-07 61 /** 6bab69c65013be Rasmus Villemoes 2019-03-07 62 * static_assert - check integer constant expression at build time 6bab69c65013be Rasmus Villemoes 2019-03-07 63 * 6bab69c65013be Rasmus Villemoes 2019-03-07 64 * static_assert() is a wrapper for the C11 _Static_assert, with a 6bab69c65013be Rasmus Villemoes 2019-03-07 65 * little macro magic to make the message optional (defaulting to the 6bab69c65013be Rasmus Villemoes 2019-03-07 66 * stringification of the tested expression). 6bab69c65013be Rasmus Villemoes 2019-03-07 67 * 6bab69c65013be Rasmus Villemoes 2019-03-07 68 * Contrary to BUILD_BUG_ON(), static_assert() can be used at global 6bab69c65013be Rasmus Villemoes 2019-03-07 69 * scope, but requires the expression to be an integer constant 6bab69c65013be Rasmus Villemoes 2019-03-07 70 * expression (i.e., it is not enough that __builtin_constant_p() is 6bab69c65013be Rasmus Villemoes 2019-03-07 71 * true for expr). 6bab69c65013be Rasmus Villemoes 2019-03-07 72 * 6bab69c65013be Rasmus Villemoes 2019-03-07 73 * Also note that BUILD_BUG_ON() fails the build if the condition is 6bab69c65013be Rasmus Villemoes 2019-03-07 74 * true, while static_assert() fails the build if the expression is 6bab69c65013be Rasmus Villemoes 2019-03-07 75 * false. 6bab69c65013be Rasmus Villemoes 2019-03-07 76 */ 6bab69c65013be Rasmus Villemoes 2019-03-07 77 #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr) 6bab69c65013be Rasmus Villemoes 2019-03-07 @78 #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) 6bab69c65013be Rasmus Villemoes 2019-03-07 79 07a368b3f55a79 Maxim Levitsky 2022-10-25 80 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
