tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 435faf5c218a47fd6258187f62d9bb1009717896 commit: 5a35435ef4e6e4bd2aabd6706b146b298a9cffe5 soc: fsl: qe: remove PPC32 dependency from CONFIG_QUICC_ENGINE date: 6 months ago config: arm-randconfig-s031-20200605 (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.1-246-g41f651b4-dirty git checkout 5a35435ef4e6e4bd2aabd6706b146b298a9cffe5 # save the attached .config to linux build tree make W=1 C=1 ARCH=arm CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) drivers/tty/serial/ucc_uart.c:264:21: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:264:21: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:264:21: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:264:21: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:268:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:268:21: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:268:21: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:268:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:268:21: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:268:21: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:268:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:268:21: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:268:21: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:268:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:268:21: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:268:21: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:286:6: sparse: sparse: symbol 'qe_uart_set_mctrl' was not declared. Should it be static? drivers/tty/serial/ucc_uart.c:349:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:349:17: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:349:17: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:350:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:350:17: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:350:17: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:350:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:350:17: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:350:17: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:350:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:350:17: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:350:17: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:350:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:350:17: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:350:17: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:350:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:350:17: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:350:17: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:350:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:350:17: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:350:17: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:350:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:350:17: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:350:17: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:350:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:350:17: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:350:17: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:350:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:350:17: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:350:17: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:350:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:350:17: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:350:17: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:350:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:350:17: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:350:17: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:350:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:350:17: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:350:17: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:350:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:350:17: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:350:17: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:350:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:350:17: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:350:17: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:350:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:350:17: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:350:17: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:350:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:350:17: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:350:17: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:350:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:350:17: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:350:17: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:352:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:352:21: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:352:21: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:352:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:352:21: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:352:21: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:352:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:352:21: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:352:21: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:352:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:352:21: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:352:21: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:371:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:371:18: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:371:18: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:371:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:371:18: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:371:18: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:371:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:371:18: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:371:18: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:371:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:371:18: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:371:18: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:384:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:384:17: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:384:17: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:385:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:385:17: sparse: expected void const volatile [noderef] <asn:2> * drivers/tty/serial/ucc_uart.c:385:17: sparse: got restricted __be16 * drivers/tty/serial/ucc_uart.c:385:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> * @@ got restricted __be16 * @@ drivers/tty/serial/ucc_uart.c:385:17: sparse: expected void const volatile [noderef] <asn:2> * vim +264 drivers/tty/serial/ucc_uart.c d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 248 d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 249 /* d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 250 * Return 1 if the QE is done transmitting all buffers for this port d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 251 * d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 252 * This function scans each BD in sequence. If we find a BD that is not d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 253 * ready (READY=1), then we return 0 indicating that the QE is still sending d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 254 * data. If we reach the last BD (WRAP=1), then we know we've scanned d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 255 * the entire list, and all BDs are done. d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 256 */ d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 257 static unsigned int qe_uart_tx_empty(struct uart_port *port) d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 258 { d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 259 struct uart_qe_port *qe_port = d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 260 container_of(port, struct uart_qe_port, port); d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 261 struct qe_bd *bdp = qe_port->tx_bd_base; d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 262 d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 263 while (1) { 8b1cdc4033bd16 drivers/tty/serial/ucc_uart.c Rasmus Villemoes 2019-11-28 @264 if (qe_ioread16be(&bdp->status) & BD_SC_READY) d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 265 /* This BD is not done, so return "not done" */ d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 266 return 0; d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 267 8b1cdc4033bd16 drivers/tty/serial/ucc_uart.c Rasmus Villemoes 2019-11-28 268 if (qe_ioread16be(&bdp->status) & BD_SC_WRAP) d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 269 /* d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 270 * This BD is done and it's the last one, so return d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 271 * "done" d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 272 */ d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 273 return 1; d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 274 d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 275 bdp++; fc811472c2167c drivers/tty/serial/ucc_uart.c Joe Perches 2013-10-08 276 } d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 277 } d7584ed2b994a5 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15 278 :::::: The code at line 264 was first introduced by commit :::::: 8b1cdc4033bd1659c5499c918d4e59bf8253abec serial: ucc_uart: replace ppc-specific IO accessors :::::: TO: Rasmus Villemoes <linux(a)rasmusvillemoes.dk&gt; :::::: CC: Li Yang <leoyang.li(a)nxp.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org