drivers/tty/serial/ucc_uart.c:264:21: sparse: sparse: incorrect type in argument 1 (different address spaces)

From: kernel test robot
Date: Wed Oct 21 2020 - 16:30:48 EST

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: c4d6fe7311762f2e03b3c27ad38df7c40c80cc93
commit: 8f28ca6bd8211214faf717677bbffe375c2a6072 iomap: constify ioreadX() iomem argument (as in generic implementation)
date: 10 weeks ago
config: m68k-randconfig-s031-20201022 (attached as .config)
compiler: m68k-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: v0.6.3-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8f28ca6bd8211214faf717677bbffe375c2a6072
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 8f28ca6bd8211214faf717677bbffe375c2a6072
# 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=m68k

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/serial/ucc_uart.c:264:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem * @@ got restricted __be16 * @@
>> drivers/tty/serial/ucc_uart.c:264:21: sparse: expected void const [noderef] __iomem *
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 [noderef] __iomem * @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:268:21: sparse: expected void const [noderef] __iomem *
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:347:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:347:17: sparse: expected void [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:347:17: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:348:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem * @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:348:17: sparse: expected void const [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:348:17: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:348:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:348:17: sparse: expected void [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:348:17: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:350:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem * @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:350:21: sparse: expected void const [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:350:21: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:369:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem * @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:369:18: sparse: expected void const [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:369:18: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:382:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:382:17: sparse: expected void [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:382:17: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:383:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem * @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:383:17: sparse: expected void const [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:383:17: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:383:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:383:17: sparse: expected void [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:383:17: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:386:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem * @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:386:21: sparse: expected void const [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:386:21: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:474:26: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem * @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:474:26: sparse: expected void const [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:474:26: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:481:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem * @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:481:21: sparse: expected void const [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:481:21: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:512:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem * @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:512:17: sparse: expected void const [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:512:17: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:512:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:512:17: sparse: expected void [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:512:17: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:515:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem * @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:515:21: sparse: expected void const [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:515:21: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:604:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:604:17: sparse: expected void [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:604:17: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:605:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got restricted __be32 * @@
drivers/tty/serial/ucc_uart.c:605:17: sparse: expected void [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:605:17: sparse: got restricted __be32 *
drivers/tty/serial/ucc_uart.c:606:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:606:17: sparse: expected void [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:606:17: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:612:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:612:9: sparse: expected void [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:612:9: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:613:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got restricted __be32 * @@
drivers/tty/serial/ucc_uart.c:613:9: sparse: expected void [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:613:9: sparse: got restricted __be32 *
drivers/tty/serial/ucc_uart.c:614:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:614:9: sparse: expected void [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:614:9: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:625:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:625:17: sparse: expected void [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:625:17: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:626:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got restricted __be32 * @@
drivers/tty/serial/ucc_uart.c:626:17: sparse: expected void [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:626:17: sparse: got restricted __be32 *
drivers/tty/serial/ucc_uart.c:627:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:627:17: sparse: expected void [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:627:17: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:637:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:637:9: sparse: expected void [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:637:9: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:638:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got restricted __be32 * @@
drivers/tty/serial/ucc_uart.c:638:9: sparse: expected void [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:638:9: sparse: got restricted __be32 *
drivers/tty/serial/ucc_uart.c:639:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:639:9: sparse: expected void [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:639:9: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:653:46: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct ucc_uart_pram *uccup @@ got struct ucc_uart_pram [noderef] __iomem *uccup @@
drivers/tty/serial/ucc_uart.c:653:46: sparse: expected struct ucc_uart_pram *uccup
drivers/tty/serial/ucc_uart.c:653:46: sparse: got struct ucc_uart_pram [noderef] __iomem *uccup
drivers/tty/serial/ucc_uart.c:661:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got unsigned char * @@
drivers/tty/serial/ucc_uart.c:661:9: sparse: expected void [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:661:9: sparse: got unsigned char *
drivers/tty/serial/ucc_uart.c:662:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got unsigned char * @@
drivers/tty/serial/ucc_uart.c:662:9: sparse: expected void [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:662:9: sparse: got unsigned char *
drivers/tty/serial/ucc_uart.c:663:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:663:9: sparse: expected void [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:663:9: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:664:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:664:9: sparse: expected void [noderef] __iomem *
drivers/tty/serial/ucc_uart.c:664:9: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:665:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:665:9: sparse: expected void [noderef] __iomem *

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@xxxxxxxxxxxxxxxxxx>
:::::: CC: Li Yang <leoyang.li@xxxxxxx>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

Attachment: .config.gz
Description: application/gzip