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Date:   Mon, 14 Sep 2020 06:19:24 +0800
From:   kernel test robot <lkp@...el.com>
To:     Gavin Shan <gshan@...hat.com>, linux-arm-kernel@...ts.infradead.org
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        catalin.marinas@....com, anshuman.khandual@....com,
        mark.rutland@....com, will@...nel.org, shan.gavin@...il.com
Subject: Re: [PATCH] arm64/mm: Refactor {pgd, pud, pmd, pte}_ERROR()

Hi Gavin,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on arm64/for-next/core]
[also build test WARNING on soc/for-next kvmarm/next v5.9-rc4 next-20200911]
[cannot apply to arm/for-next xlnx/master]
[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/Gavin-Shan/arm64-mm-Refactor-pgd-pud-pmd-pte-_ERROR/20200913-194714
base:   https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core
config: arm64-defconfig (attached as .config)
compiler: aarch64-linux-gcc (GCC) 9.3.0
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
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 

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

All warnings (new ones prefixed by >>):

   In file included from include/linux/printk.h:7,
                    from include/linux/kernel.h:15,
                    from include/asm-generic/bug.h:20,
                    from arch/arm64/include/asm/bug.h:26,
                    from include/linux/bug.h:5,
                    from include/linux/mmdebug.h:5,
                    from include/linux/mm.h:9,
                    from include/linux/pagemap.h:8,
                    from mm/pgtable-generic.c:10:
   mm/pgtable-generic.c: In function 'pgd_clear_bad':
   include/linux/kern_levels.h:5:18: warning: format '%lx' expects argument of type 'long unsigned int', but argument 4 has type 'pgdval_t' {aka 'long long unsigned int'} [-Wformat=]
       5 | #define KERN_SOH "\001"  /* ASCII Start Of Header */
         |                  ^~~~~~
   include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH'
      11 | #define KERN_ERR KERN_SOH "3" /* error conditions */
         |                  ^~~~~~~~
   include/linux/printk.h:339:9: note: in expansion of macro 'KERN_ERR'
     339 |  printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
         |         ^~~~~~~~
   arch/arm64/include/asm/pgtable.h:697:2: note: in expansion of macro 'pr_err'
     697 |  pr_err("%s:%d: bad pgd %016lx.\n", __FILE__, __LINE__, pgd_val(e))
         |  ^~~~~~
   mm/pgtable-generic.c:23:2: note: in expansion of macro 'pgd_ERROR'
      23 |  pgd_ERROR(*pgd);
         |  ^~~~~~~~~
   In file included from include/linux/pgtable.h:6,
                    from include/linux/mm.h:33,
                    from include/linux/pagemap.h:8,
                    from mm/pgtable-generic.c:10:
   arch/arm64/include/asm/pgtable.h:697:30: note: format string is defined here
     697 |  pr_err("%s:%d: bad pgd %016lx.\n", __FILE__, __LINE__, pgd_val(e))
         |                         ~~~~~^
         |                              |
         |                              long unsigned int
         |                         %016llx
   In file included from include/linux/printk.h:7,
                    from include/linux/kernel.h:15,
                    from include/asm-generic/bug.h:20,
                    from arch/arm64/include/asm/bug.h:26,
                    from include/linux/bug.h:5,
                    from include/linux/mmdebug.h:5,
                    from include/linux/mm.h:9,
                    from include/linux/pagemap.h:8,
                    from mm/pgtable-generic.c:10:
   mm/pgtable-generic.c: In function 'pud_clear_bad':
>> include/linux/kern_levels.h:5:18: warning: format '%lx' expects argument of type 'long unsigned int', but argument 4 has type 'pudval_t' {aka 'long long unsigned int'} [-Wformat=]
       5 | #define KERN_SOH "\001"  /* ASCII Start Of Header */
         |                  ^~~~~~
   include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH'
      11 | #define KERN_ERR KERN_SOH "3" /* error conditions */
         |                  ^~~~~~~~
   include/linux/printk.h:339:9: note: in expansion of macro 'KERN_ERR'
     339 |  printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
         |         ^~~~~~~~
   arch/arm64/include/asm/pgtable.h:637:2: note: in expansion of macro 'pr_err'
     637 |  pr_err("%s:%d: bad pud %016lx.\n", __FILE__, __LINE__, pud_val(e))
         |  ^~~~~~
   mm/pgtable-generic.c:38:2: note: in expansion of macro 'pud_ERROR'
      38 |  pud_ERROR(*pud);
         |  ^~~~~~~~~
   In file included from include/linux/pgtable.h:6,
                    from include/linux/mm.h:33,
                    from include/linux/pagemap.h:8,
                    from mm/pgtable-generic.c:10:
   arch/arm64/include/asm/pgtable.h:637:30: note: format string is defined here
     637 |  pr_err("%s:%d: bad pud %016lx.\n", __FILE__, __LINE__, pud_val(e))
         |                         ~~~~~^
         |                              |
         |                              long unsigned int
         |                         %016llx
   In file included from include/linux/printk.h:7,
                    from include/linux/kernel.h:15,
                    from include/asm-generic/bug.h:20,
                    from arch/arm64/include/asm/bug.h:26,
                    from include/linux/bug.h:5,
                    from include/linux/mmdebug.h:5,
                    from include/linux/mm.h:9,
                    from include/linux/pagemap.h:8,
                    from mm/pgtable-generic.c:10:
   mm/pgtable-generic.c: In function 'pmd_clear_bad':
   include/linux/kern_levels.h:5:18: warning: format '%lx' expects argument of type 'long unsigned int', but argument 4 has type 'pmdval_t' {aka 'long long unsigned int'} [-Wformat=]
       5 | #define KERN_SOH "\001"  /* ASCII Start Of Header */
         |                  ^~~~~~
   include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH'
      11 | #define KERN_ERR KERN_SOH "3" /* error conditions */
         |                  ^~~~~~~~
   include/linux/printk.h:339:9: note: in expansion of macro 'KERN_ERR'
     339 |  printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
         |         ^~~~~~~~
   arch/arm64/include/asm/pgtable.h:569:2: note: in expansion of macro 'pr_err'
     569 |  pr_err("%s:%d: bad pmd %016lx.\n", __FILE__, __LINE__, pmd_val(e))
         |  ^~~~~~
   mm/pgtable-generic.c:50:2: note: in expansion of macro 'pmd_ERROR'
      50 |  pmd_ERROR(*pmd);
         |  ^~~~~~~~~
   In file included from include/linux/pgtable.h:6,
                    from include/linux/mm.h:33,
                    from include/linux/pagemap.h:8,
                    from mm/pgtable-generic.c:10:
   arch/arm64/include/asm/pgtable.h:569:30: note: format string is defined here
     569 |  pr_err("%s:%d: bad pmd %016lx.\n", __FILE__, __LINE__, pmd_val(e))
         |                         ~~~~~^
         |                              |
         |                              long unsigned int
         |                         %016llx

# https://github.com/0day-ci/linux/commit/cd252fb09dcb74b0e227cc8a28d08d32e217f084
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Gavin-Shan/arm64-mm-Refactor-pgd-pud-pmd-pte-_ERROR/20200913-194714
git checkout cd252fb09dcb74b0e227cc8a28d08d32e217f084
vim +5 include/linux/kern_levels.h

314ba3520e513a Joe Perches 2012-07-30  4  
04d2c8c83d0e3a Joe Perches 2012-07-30 @5  #define KERN_SOH	"\001"		/* ASCII Start Of Header */
04d2c8c83d0e3a Joe Perches 2012-07-30  6  #define KERN_SOH_ASCII	'\001'
04d2c8c83d0e3a Joe Perches 2012-07-30  7  

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

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