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SubjectRe: [PATCH] arm64/mm: Refactor {pgd, pud, pmd, pte}_ERROR()
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On 9/14/20 8:19 AM, kernel test robot wrote:
> 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@intel.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=]

[...]

I'm fixing this by passing "%016llx" instead of "%016lx" to pr_err() in v2.

Thanks,
Gavin

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