linux-kernel - Re: [PATCH]: arch: arm64: vdso: export the symbols for time()

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Message-ID: <202006152117.8QO4r7IJ%lkp@intel.com>
Date:   Mon, 15 Jun 2020 21:53:43 +0800
From:   kernel test robot <lkp@...el.com>
To:     Mark Salyzyn <salyzyn@...roid.com>, linux-kernel@...r.kernel.org
Cc:     kbuild-all@...ts.01.org, Enrico Weigelt <info@...ux.net>,
        Will Deacon <will@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Mark Salyzyn <salyzyn@...roid.com>,
        Alexios Zavras <alexios.zavras@...el.com>,
        Chiawei Wang <chiaweiwang@...gle.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Vincenzo Frascino <vincenzo.frascino@....com>
Subject: Re: [PATCH]: arch: arm64: vdso: export the symbols for time()

Hi Mark,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on arm64/for-next/core]
[also build test ERROR on soc/for-next linus/master v5.8-rc1 next-20200615]
[cannot apply to linux/master]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Mark-Salyzyn/arch-arm64-vdso-export-the-symbols-for-time/20200615-192523
base:   https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core
config: arm64-allyesconfig (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 errors (new ones prefixed by >>, old ones prefixed by <<):

arch/arm64/kernel/vdso/vgettimeofday.c:9:5: warning: no previous prototype for '__kernel_clock_gettime' [-Wmissing-prototypes]
9 | int __kernel_clock_gettime(clockid_t clock,
|     ^~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kernel/vdso/vgettimeofday.c:15:5: warning: no previous prototype for '__kernel_gettimeofday' [-Wmissing-prototypes]
15 | int __kernel_gettimeofday(struct __kernel_old_timeval *tv,
|     ^~~~~~~~~~~~~~~~~~~~~
arch/arm64/kernel/vdso/vgettimeofday.c:21:5: warning: no previous prototype for '__kernel_clock_getres' [-Wmissing-prototypes]
21 | int __kernel_clock_getres(clockid_t clock_id,
|     ^~~~~~~~~~~~~~~~~~~~~
>> arch/arm64/kernel/vdso/vgettimeofday.c:27:1: error: unknown type name 'time_t'; did you mean 'timer_t'?
27 | time_t __kernel_time(time_t *time)
| ^~~~~~
| timer_t
arch/arm64/kernel/vdso/vgettimeofday.c:27:22: error: unknown type name 'time_t'; did you mean 'timer_t'?
27 | time_t __kernel_time(time_t *time)
|                      ^~~~~~
|                      timer_t
make[2]: *** [scripts/Makefile.build:267: arch/arm64/kernel/vdso/vgettimeofday.o] Error 1
make[2]: Target 'include/generated/vdso-offsets.h' not remade because of errors.
make[1]: *** [arch/arm64/Makefile:183: vdso_prepare] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:180: sub-make] Error 2
make: Target 'prepare' not remade because of errors.

vim +27 arch/arm64/kernel/vdso/vgettimeofday.c

    26	
  > 27	time_t __kernel_time(time_t *time)

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

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