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Message-ID: <202010220417.PDWrZu0S-lkp@intel.com>
Date:   Thu, 22 Oct 2020 04:30:27 +0800
From:   kernel test robot <lkp@...el.com>
To:     Krzysztof Kozlowski <krzk@...nel.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linux Memory Management List <linux-mm@...ck.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Arnd Bergmann <arnd@...db.de>
Subject: drivers/tty/serial/ucc_uart.c:264:21: sparse: sparse: incorrect type
 in argument 1 (different address spaces)

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@...el.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 <linux@...musvillemoes.dk>
:::::: CC: Li Yang <leoyang.li@....com>

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

Download attachment ".config.gz" of type "application/gzip" (30913 bytes)

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