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 <l...@intel.com>


"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 <li...@rasmusvillemoes.dk>
:::::: CC: Li Yang <leoyang...@nxp.com>

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

Attachment: .config.gz
Description: application/gzip

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