Hi "Johnson, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on tty/tty-testing] [also build test WARNING on v5.8-rc6 next-20200723] [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] url: https://github.com/0day-ci/linux/commits/Johnson-CH-Chen/tty-Add-MOXA-NPort-Real-TTY-Driver/20200714-142712 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing config: mips-randconfig-s032-20200723 (attached as .config) compiler: mipsel-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.2-93-g4c6cbe55-dirty # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=mips If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) drivers/tty/npreal2.c:1107:26: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] __user *to @@ got struct serial_struct *retinfo @@ drivers/tty/npreal2.c:1107:26: sparse: expected void [noderef] __user *to drivers/tty/npreal2.c:1107:26: sparse: got struct serial_struct *retinfo drivers/tty/npreal2.c:1122:56: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] __user *from @@ got struct serial_struct *new_info @@ drivers/tty/npreal2.c:1122:56: sparse: expected void const [noderef] __user *from drivers/tty/npreal2.c:1122:56: sparse: got struct serial_struct *new_info drivers/tty/npreal2.c:1149:57: sparse: sparse: Using plain integer as NULL pointer drivers/tty/npreal2.c:1186:9: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected unsigned int [noderef] __user *__pu_addr @@ got unsigned int *value @@ drivers/tty/npreal2.c:1186:9: sparse: expected unsigned int [noderef] __user *__pu_addr drivers/tty/npreal2.c:1186:9: sparse: got unsigned int *value drivers/tty/npreal2.c:1624:38: sparse: sparse: Using plain integer as NULL pointer drivers/tty/npreal2.c:1897:34: sparse: sparse: Using plain integer as NULL pointer drivers/tty/npreal2.c:1914:21: sparse: sparse: Using plain integer as NULL pointer drivers/tty/npreal2.c:1984:46: sparse: sparse: Using plain integer as NULL pointer drivers/tty/npreal2.c:2261:17: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected unsigned long [noderef] __user *__pu_addr @@ got unsigned long * @@ drivers/tty/npreal2.c:2261:17: sparse: expected unsigned long [noderef] __user *__pu_addr drivers/tty/npreal2.c:2261:17: sparse: got unsigned long * >> drivers/tty/npreal2.c:2265:17: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected unsigned long const [noderef] __user *__gu_ptr @@ got unsigned long * @@ >> drivers/tty/npreal2.c:2265:17: sparse: expected unsigned long const [noderef] __user *__gu_ptr drivers/tty/npreal2.c:2265:17: sparse: got unsigned long * drivers/tty/npreal2.c:2319:21: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected int [noderef] __user *__pu_addr @@ got int * @@ drivers/tty/npreal2.c:2319:21: sparse: expected int [noderef] __user *__pu_addr drivers/tty/npreal2.c:2319:21: sparse: got int * drivers/tty/npreal2.c:2319:62: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected int [noderef] __user *__pu_addr @@ got int * @@ drivers/tty/npreal2.c:2319:62: sparse: expected int [noderef] __user *__pu_addr drivers/tty/npreal2.c:2319:62: sparse: got int * drivers/tty/npreal2.c:2320:25: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected int [noderef] __user *__pu_addr @@ got int * @@ drivers/tty/npreal2.c:2320:25: sparse: expected int [noderef] __user *__pu_addr drivers/tty/npreal2.c:2320:25: sparse: got int * drivers/tty/npreal2.c:2321:25: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected int [noderef] __user *__pu_addr @@ got int * @@ drivers/tty/npreal2.c:2321:25: sparse: expected int [noderef] __user *__pu_addr drivers/tty/npreal2.c:2321:25: sparse: got int * drivers/tty/npreal2.c:2322:25: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected int [noderef] __user *__pu_addr @@ got int * @@ drivers/tty/npreal2.c:2322:25: sparse: expected int [noderef] __user *__pu_addr drivers/tty/npreal2.c:2322:25: sparse: got int * drivers/tty/npreal2.c:2323:25: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected int [noderef] __user *__pu_addr @@ got int * @@ drivers/tty/npreal2.c:2323:25: sparse: expected int [noderef] __user *__pu_addr drivers/tty/npreal2.c:2323:25: sparse: got int * drivers/tty/npreal2.c:2324:25: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected int [noderef] __user *__pu_addr @@ got int * @@ drivers/tty/npreal2.c:2324:25: sparse: expected int [noderef] __user *__pu_addr drivers/tty/npreal2.c:2324:25: sparse: got int * drivers/tty/npreal2.c:2329:17: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected int [noderef] __user *__pu_addr @@ got int * @@ drivers/tty/npreal2.c:2329:17: sparse: expected int [noderef] __user *__pu_addr drivers/tty/npreal2.c:2329:17: sparse: got int * drivers/tty/npreal2.c:2330:17: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected int [noderef] __user *__pu_addr @@ got int * @@ drivers/tty/npreal2.c:2330:17: sparse: expected int [noderef] __user *__pu_addr drivers/tty/npreal2.c:2330:17: sparse: got int * drivers/tty/npreal2.c:2331:17: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected int [noderef] __user *__pu_addr @@ got int * @@ drivers/tty/npreal2.c:2331:17: sparse: expected int [noderef] __user *__pu_addr drivers/tty/npreal2.c:2331:17: sparse: got int * drivers/tty/npreal2.c:2332:17: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected int [noderef] __user *__pu_addr @@ got int * @@ drivers/tty/npreal2.c:2332:17: sparse: expected int [noderef] __user *__pu_addr drivers/tty/npreal2.c:2332:17: sparse: got int * drivers/tty/npreal2.c:2570:35: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] __user *to @@ got void * @@ drivers/tty/npreal2.c:2570:35: sparse: expected void [noderef] __user *to drivers/tty/npreal2.c:2570:35: sparse: got void * drivers/tty/npreal2.c:2591:57: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] __user *from @@ got void * @@ drivers/tty/npreal2.c:2591:57: sparse: expected void const [noderef] __user *from drivers/tty/npreal2.c:2591:57: sparse: got void * drivers/tty/npreal2.c:2720:35: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] __user *to @@ got void * @@ drivers/tty/npreal2.c:2720:35: sparse: expected void [noderef] __user *to drivers/tty/npreal2.c:2720:35: sparse: got void * drivers/tty/npreal2.c:2734:56: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] __user *from @@ got void * @@ drivers/tty/npreal2.c:2734:56: sparse: expected void const [noderef] __user *from drivers/tty/npreal2.c:2734:56: sparse: got void * drivers/tty/npreal2.c:2803:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] __user *to @@ got char *buf @@ drivers/tty/npreal2.c:2803:34: sparse: expected void [noderef] __user *to drivers/tty/npreal2.c:2803:34: sparse: got char *buf drivers/tty/npreal2.c:2831:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] __user *to @@ got char * @@ drivers/tty/npreal2.c:2831:38: sparse: expected void [noderef] __user *to drivers/tty/npreal2.c:2831:38: sparse: got char * drivers/tty/npreal2.c:2899:38: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] __user *from @@ got char const *buf @@ drivers/tty/npreal2.c:2899:38: sparse: expected void const [noderef] __user *from drivers/tty/npreal2.c:2899:38: sparse: got char const *buf >> drivers/tty/npreal2.c:2950:22: sparse: sparse: incorrect type in initializer (incompatible argument 2 (different address spaces)) @@ expected int ( *proc_read )( ... ) @@ got int ( * )( ... ) @@ >> drivers/tty/npreal2.c:2950:22: sparse: expected int ( *proc_read )( ... ) >> drivers/tty/npreal2.c:2950:22: sparse: got int ( * )( ... ) >> drivers/tty/npreal2.c:2951:23: sparse: sparse: incorrect type in initializer (incompatible argument 2 (different address spaces)) @@ expected int ( *proc_write )( ... ) @@ got int ( * )( ... ) @@ >> drivers/tty/npreal2.c:2951:23: sparse: expected int ( *proc_write )( ... ) drivers/tty/npreal2.c:2951:23: sparse: got int ( * )( ... ) drivers/tty/npreal2.c:2954:22: sparse: sparse: incorrect type in initializer (different base types) @@ expected restricted __poll_t ( *proc_poll )( ... ) @@ got unsigned int ( * )( ... ) @@ drivers/tty/npreal2.c:2954:22: sparse: expected restricted __poll_t ( *proc_poll )( ... ) drivers/tty/npreal2.c:2954:22: sparse: got unsigned int ( * )( ... ) vim +2265 drivers/tty/npreal2.c 2201 2202 static int npreal_ioctl(struct tty_struct *tty, unsigned int cmd, 2203 unsigned long arg) 2204 { 2205 struct npreal_struct *info = (struct npreal_struct *)tty->driver_data; 2206 struct serial_icounter_struct *p_cuser; /* user space */ 2207 unsigned long templ; 2208 int ret = 0; 2209 2210 if (!info) 2211 return -ENODEV; 2212 2213 if ((cmd != TIOCGSERIAL) && (cmd != TIOCMIWAIT) && (cmd != TIOCGICOUNT) && 2214 test_bit(TTY_IO_ERROR, &tty->flags)) 2215 return -EIO; 2216 2217 switch (cmd) { 2218 case TCFLSH: 2219 ret = tty_check_change(tty); 2220 if (!ret) { 2221 switch (arg) { 2222 case TCIFLUSH: 2223 if (tty->ldisc->ops->flush_buffer) 2224 tty->ldisc->ops->flush_buffer(tty); 2225 break; 2226 2227 case TCIOFLUSH: 2228 if (tty->ldisc->ops->flush_buffer) 2229 tty->ldisc->ops->flush_buffer(tty); 2230 npreal_flush_buffer(tty); 2231 break; 2232 2233 case TCOFLUSH: 2234 npreal_flush_buffer(tty); 2235 break; 2236 2237 default: 2238 ret = -EINVAL; 2239 } 2240 } 2241 break; 2242 2243 case TCSBRK: /* SVID version: non-zero arg --> no break */ 2244 ret = tty_check_change(tty); 2245 if (!ret) { 2246 tty_wait_until_sent(tty, 0); 2247 if (!arg) 2248 npreal_send_break(info, HZ / 4); 2249 } 2250 break; 2251 2252 case TCSBRKP: /* support for POSIX tcsendbreak() */ 2253 ret = tty_check_change(tty); 2254 if (!ret) { 2255 tty_wait_until_sent(tty, 0); 2256 npreal_send_break(info, arg ? arg * (HZ / 10) : HZ / 4); 2257 } 2258 break; 2259 2260 case TIOCGSOFTCAR: 2261 put_user(C_CLOCAL(tty) ? 1 : 0, (unsigned long *)arg); 2262 break; 2263 2264 case TIOCSSOFTCAR: > 2265 get_user(templ, (unsigned long *)arg); 2266 tty->termios.c_cflag = ((tty->termios.c_cflag & ~CLOCAL) | (arg ? CLOCAL : 0)); 2267 break; 2268 2269 case TIOCGSERIAL: 2270 ret = (npreal_get_serial_info(info, (struct serial_struct *)arg)); 2271 break; 2272 2273 case TIOCSSERIAL: 2274 ret = (npreal_set_serial_info(info, (struct serial_struct *)arg)); 2275 break; 2276 2277 case TIOCSERGETLSR: /* Get line status register */ 2278 ret = (npreal_get_lsr_info(info, (unsigned int *)arg)); 2279 break; 2280 2281 case TIOCMIWAIT: { 2282 struct async_icount cprev; 2283 DECLARE_WAITQUEUE(wait, current); 2284 2285 cprev = info->icount; 2286 add_wait_queue(&info->delta_msr_wait, &wait); 2287 while (1) { 2288 struct async_icount cnow; 2289 2290 cnow = info->icount; 2291 if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || 2292 ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || 2293 ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || 2294 ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) { 2295 ret = 0; 2296 break; 2297 } 2298 2299 if (signal_pending(current)) { 2300 ret = -ERESTARTSYS; 2301 break; 2302 } 2303 2304 cprev = cnow; 2305 current->state = TASK_INTERRUPTIBLE; 2306 schedule(); 2307 } 2308 2309 remove_wait_queue(&info->delta_msr_wait, &wait); 2310 break; 2311 } 2312 2313 case TIOCGICOUNT:{ 2314 struct async_icount cnow; 2315 2316 cnow = info->icount; 2317 p_cuser = (struct serial_icounter_struct *)arg; 2318 2319 if (put_user(cnow.frame, &p_cuser->frame) || put_user(cnow.brk, &p_cuser->brk) || 2320 put_user(cnow.overrun, &p_cuser->overrun) || 2321 put_user(cnow.buf_overrun, &p_cuser->buf_overrun) || 2322 put_user(cnow.parity, &p_cuser->parity) || 2323 put_user(cnow.rx, &p_cuser->rx) || 2324 put_user(cnow.tx, &p_cuser->tx)) { 2325 ret = -EFAULT; 2326 break; 2327 } 2328 2329 put_user(cnow.cts, &p_cuser->cts); 2330 put_user(cnow.dsr, &p_cuser->dsr); 2331 put_user(cnow.rng, &p_cuser->rng); 2332 put_user(cnow.dcd, &p_cuser->dcd); 2333 break; 2334 } 2335 case TCXONC: 2336 ret = tty_check_change(tty); 2337 if (!ret) { 2338 switch (arg) { 2339 case TCOOFF: 2340 ret = npreal_set_generic_command_done(info, ASPP_CMD_SETXOFF); 2341 break; 2342 2343 case TCOON: 2344 ret = npreal_set_generic_command_done(info, ASPP_CMD_SETXON); 2345 break; 2346 2347 default: 2348 ret = -EINVAL; 2349 } 2350 } 2351 break; 2352 2353 default: 2354 ret = -ENOIOCTLCMD; 2355 } 2356 return ret; 2357 } 2358 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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.config.gz
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