Hi Namjae, Thank you for the patch! Yet something to improve: [auto build test ERROR on linux/master] [also build test ERROR on hch-configfs/for-next linus/master v5.5-rc4 next-20191219] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Namjae-Jeon/add-the-latest-exfat-driver/20200104-035709 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 1522d9da40bdfe502c91163e6d769332897201fa config: c6x-allyesconfig (attached as .config) compiler: c6x-elf-gcc (GCC) 7.5.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=7.5.0 make.cross ARCH=c6x If you fix the issue, kindly add following tag Reported-by: kbuild test robot All errors (new ones prefixed by >>): fs/exfat/misc.c: In function 'exfat_time_unix2fat': >> fs/exfat/misc.c:157:16: error: 'UNIX_SECS_2108' undeclared (first use in this function); did you mean 'UNIX_SECS_1980'? if (second >= UNIX_SECS_2108) { ^~~~~~~~~~~~~~ UNIX_SECS_1980 fs/exfat/misc.c:157:16: note: each undeclared identifier is reported only once for each function it appears in vim +157 fs/exfat/misc.c 25430145db94f9 Namjae Jeon 2020-01-02 131 25430145db94f9 Namjae Jeon 2020-01-02 132 #define TIMEZONE_CUR_OFFSET() ((sys_tz.tz_minuteswest / (-15)) & 0x7F) 25430145db94f9 Namjae Jeon 2020-01-02 133 /* Convert linear UNIX date to a FAT time/date pair. */ 25430145db94f9 Namjae Jeon 2020-01-02 134 void exfat_time_unix2fat(struct exfat_sb_info *sbi, struct timespec64 *ts, 25430145db94f9 Namjae Jeon 2020-01-02 135 struct exfat_date_time *tp) 25430145db94f9 Namjae Jeon 2020-01-02 136 { 25430145db94f9 Namjae Jeon 2020-01-02 137 time_t second = ts->tv_sec; 25430145db94f9 Namjae Jeon 2020-01-02 138 time_t day, month, year; 25430145db94f9 Namjae Jeon 2020-01-02 139 time_t ld; /* leap day */ 25430145db94f9 Namjae Jeon 2020-01-02 140 25430145db94f9 Namjae Jeon 2020-01-02 141 /* Treats as local time with proper time */ 25430145db94f9 Namjae Jeon 2020-01-02 142 second -= sys_tz.tz_minuteswest * SECS_PER_MIN; 25430145db94f9 Namjae Jeon 2020-01-02 143 tp->timezone.valid = 1; 25430145db94f9 Namjae Jeon 2020-01-02 144 tp->timezone.off = TIMEZONE_CUR_OFFSET(); 25430145db94f9 Namjae Jeon 2020-01-02 145 25430145db94f9 Namjae Jeon 2020-01-02 146 /* Jan 1 GMT 00:00:00 1980. But what about another time zone? */ 25430145db94f9 Namjae Jeon 2020-01-02 147 if (second < UNIX_SECS_1980) { 25430145db94f9 Namjae Jeon 2020-01-02 148 tp->second = 0; 25430145db94f9 Namjae Jeon 2020-01-02 149 tp->minute = 0; 25430145db94f9 Namjae Jeon 2020-01-02 150 tp->hour = 0; 25430145db94f9 Namjae Jeon 2020-01-02 151 tp->day = 1; 25430145db94f9 Namjae Jeon 2020-01-02 152 tp->month = 1; 25430145db94f9 Namjae Jeon 2020-01-02 153 tp->year = 0; 25430145db94f9 Namjae Jeon 2020-01-02 154 return; 25430145db94f9 Namjae Jeon 2020-01-02 155 } 25430145db94f9 Namjae Jeon 2020-01-02 156 25430145db94f9 Namjae Jeon 2020-01-02 @157 if (second >= UNIX_SECS_2108) { 25430145db94f9 Namjae Jeon 2020-01-02 158 tp->second = 59; 25430145db94f9 Namjae Jeon 2020-01-02 159 tp->minute = 59; 25430145db94f9 Namjae Jeon 2020-01-02 160 tp->hour = 23; 25430145db94f9 Namjae Jeon 2020-01-02 161 tp->day = 31; 25430145db94f9 Namjae Jeon 2020-01-02 162 tp->month = 12; 25430145db94f9 Namjae Jeon 2020-01-02 163 tp->year = 127; 25430145db94f9 Namjae Jeon 2020-01-02 164 return; 25430145db94f9 Namjae Jeon 2020-01-02 165 } 25430145db94f9 Namjae Jeon 2020-01-02 166 25430145db94f9 Namjae Jeon 2020-01-02 167 day = second / SECS_PER_DAY - DAYS_DELTA_DECADE; 25430145db94f9 Namjae Jeon 2020-01-02 168 year = day / 365; 25430145db94f9 Namjae Jeon 2020-01-02 169 25430145db94f9 Namjae Jeon 2020-01-02 170 MAKE_LEAP_YEAR(ld, year); 25430145db94f9 Namjae Jeon 2020-01-02 171 if (year * 365 + ld > day) 25430145db94f9 Namjae Jeon 2020-01-02 172 year--; 25430145db94f9 Namjae Jeon 2020-01-02 173 25430145db94f9 Namjae Jeon 2020-01-02 174 MAKE_LEAP_YEAR(ld, year); 25430145db94f9 Namjae Jeon 2020-01-02 175 day -= year * 365 + ld; 25430145db94f9 Namjae Jeon 2020-01-02 176 25430145db94f9 Namjae Jeon 2020-01-02 177 if (IS_LEAP_YEAR(year) && day == accum_days_in_year[3]) { 25430145db94f9 Namjae Jeon 2020-01-02 178 month = 2; 25430145db94f9 Namjae Jeon 2020-01-02 179 } else { 25430145db94f9 Namjae Jeon 2020-01-02 180 if (IS_LEAP_YEAR(year) && day > accum_days_in_year[3]) 25430145db94f9 Namjae Jeon 2020-01-02 181 day--; 25430145db94f9 Namjae Jeon 2020-01-02 182 for (month = 1; month < 12; month++) { 25430145db94f9 Namjae Jeon 2020-01-02 183 if (accum_days_in_year[month + 1] > day) 25430145db94f9 Namjae Jeon 2020-01-02 184 break; 25430145db94f9 Namjae Jeon 2020-01-02 185 } 25430145db94f9 Namjae Jeon 2020-01-02 186 } 25430145db94f9 Namjae Jeon 2020-01-02 187 day -= accum_days_in_year[month]; 25430145db94f9 Namjae Jeon 2020-01-02 188 25430145db94f9 Namjae Jeon 2020-01-02 189 tp->second = second % SECS_PER_MIN; 25430145db94f9 Namjae Jeon 2020-01-02 190 tp->minute = (second / SECS_PER_MIN) % 60; 25430145db94f9 Namjae Jeon 2020-01-02 191 tp->hour = (second / SECS_PER_HOUR) % 24; 25430145db94f9 Namjae Jeon 2020-01-02 192 tp->day = day + 1; 25430145db94f9 Namjae Jeon 2020-01-02 193 tp->month = month; 25430145db94f9 Namjae Jeon 2020-01-02 194 tp->year = year; 25430145db94f9 Namjae Jeon 2020-01-02 195 } 25430145db94f9 Namjae Jeon 2020-01-02 196 :::::: The code at line 157 was first introduced by commit :::::: 25430145db94f9ef1c017b0b2e3f4729888576d7 exfat: add misc operations :::::: TO: Namjae Jeon :::::: CC: 0day robot --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation