Hi Andrey, [auto build test ERROR on: v4.4-rc3] [cannot apply to: tip/x86/core kbuild/for-next next-20151127]
url: https://github.com/0day-ci/linux/commits/Andrey-Ryabinin/kernel-printk-specify-alignment-for-struct-printk_log/20151201-000229 config: i386-allmodconfig (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=i386 All error/warnings (new ones prefixed by >>): lib/ubsan.c: In function 'val_to_string': >> lib/ubsan.c:127:15: warning: right shift count >= width of type >> [-Wshift-count-overflow] (u32)(val >> 96), ^ lib/ubsan.c:128:15: warning: right shift count >= width of type [-Wshift-count-overflow] (u32)(val >> 64), ^ -- In file included from include/linux/linkage.h:4:0, from include/linux/fs.h:4, from include/linux/debugfs.h:18, from net/mac80211/debugfs.c:11: net/mac80211/debugfs.c: In function 'hwflags_read': >> include/linux/compiler.h:484:38: error: call to '__compiletime_assert_150' >> declared with attribute error: BUILD_BUG_ON failed: >> hw_flag_names[NUM_IEEE80211_HW_FLAGS] != (void *)0x1 _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) ^ include/linux/compiler.h:467:4: note: in definition of macro '__compiletime_assert' prefix ## suffix(); \ ^ include/linux/compiler.h:484:2: note: in expansion of macro '_compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) ^ include/linux/bug.h:50:37: note: in expansion of macro 'compiletime_assert' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ^ include/linux/bug.h:74:2: note: in expansion of macro 'BUILD_BUG_ON_MSG' BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition) ^ >> net/mac80211/debugfs.c:150:2: note: in expansion of macro 'BUILD_BUG_ON' BUILD_BUG_ON(hw_flag_names[NUM_IEEE80211_HW_FLAGS] != (void *)0x1); ^ vim +127 lib/ubsan.c 111 112 if (type_bit_width(type) == 64) 113 return *(u64 *)val; 114 115 return *(u_max *)val; 116 } 117 118 static void val_to_string(char *str, size_t size, struct type_descriptor *type, 119 unsigned long value) 120 { 121 u_max val = get_unsigned_val(type, value); 122 123 if (type_is_int(type)) { 124 if (IS_ENABLED(CONFIG_ARCH_SUPPORTS_INT128) 125 && type_bit_width(type) == 128) 126 scnprintf(str, size, "0x%08x%08x%08x%08x", > 127 (u32)(val >> 96), 128 (u32)(val >> 64), 129 (u32)(val >> 32), 130 (u32)(val)); 131 else if (type_is_signed(type)) 132 scnprintf(str, size, "%lld", 133 (s64)get_signed_val(type, value)); 134 else 135 scnprintf(str, size, "%llu", --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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