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Date:   Fri, 29 Oct 2021 07:49:15 +0800
From:   kernel test robot <lkp@...el.com>
To:     cgel.zte@...il.com, gregkh@...uxfoundation.org
Cc:     kbuild-all@...ts.01.org, jirislaby@...nel.org, johan@...nel.org,
        macro@...am.me.uk, fancer.lancer@...il.com, andrew@...id.au,
        pali@...nel.org, linux-serial@...r.kernel.org,
        linux-kernel@...r.kernel.org, Jing Yao <yao.jing2@....com.cn>
Subject: Re: [PATCH] drivers: tty: replace snprintf in show functions with
 sysfs_emit

Hi,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on tty/tty-testing]
[also build test ERROR on staging/staging-testing v5.15-rc7 next-20211028]
[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/cgel-zte-gmail-com/drivers-tty-replace-snprintf-in-show-functions-with-sysfs_emit/20211028-181624
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing
config: microblaze-buildonly-randconfig-r002-20211028 (attached as .config)
compiler: microblaze-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/03b103ac2507a7958ac9e45fe6a53110e1140625
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review cgel-zte-gmail-com/drivers-tty-replace-snprintf-in-show-functions-with-sysfs_emit/20211028-181624
        git checkout 03b103ac2507a7958ac9e45fe6a53110e1140625
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=microblaze 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   In file included from include/linux/mm_types_task.h:16,
                    from include/linux/mm_types.h:5,
                    from include/linux/buildid.h:5,
                    from include/linux/module.h:14,
                    from drivers/tty/serial/8250/8250_port.c:14:
   drivers/tty/serial/8250/8250_port.c: In function 'rx_trig_bytes_show':
>> arch/microblaze/include/asm/page.h:24:25: error: passing argument 2 of 'sysfs_emit' makes pointer from integer without a cast [-Werror=int-conversion]
      24 | #define PAGE_SIZE       (ASM_CONST(1) << PAGE_SHIFT)
         |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
         |                         |
         |                         long unsigned int
   drivers/tty/serial/8250/8250_port.c:3102:32: note: in expansion of macro 'PAGE_SIZE'
    3102 |         return sysfs_emit(buf, PAGE_SIZE, "%d\n", rxtrig_bytes);
         |                                ^~~~~~~~~
   In file included from include/linux/kobject.h:20,
                    from include/linux/module.h:21,
                    from drivers/tty/serial/8250/8250_port.c:14:
   include/linux/sysfs.h:341:39: note: expected 'const char *' but argument is of type 'long unsigned int'
     341 | int sysfs_emit(char *buf, const char *fmt, ...);
         |                           ~~~~~~~~~~~~^~~
   cc1: all warnings being treated as errors


vim +/sysfs_emit +24 arch/microblaze/include/asm/page.h

4b87d7a4f91d31 Michal Simek      2009-03-27  21  
4b87d7a4f91d31 Michal Simek      2009-03-27  22  /* PAGE_SHIFT determines the page size */
ba9c4f88d74783 Steven J. Magnani 2010-05-13  23  #define PAGE_SHIFT		12
ba9c4f88d74783 Steven J. Magnani 2010-05-13 @24  #define PAGE_SIZE	(ASM_CONST(1) << PAGE_SHIFT)
4b87d7a4f91d31 Michal Simek      2009-03-27  25  #define PAGE_MASK	(~(PAGE_SIZE-1))
4b87d7a4f91d31 Michal Simek      2009-03-27  26  

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

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