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From: kernel test robot <lkp@intel.com>
To: Paul Mackerras <paulus@ozlabs.org>
Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org,
	Michael Ellerman <mpe@ellerman.id.au>,
	Nicholas Piggin <npiggin@gmail.com>,
	Segher Boessenkool <segher@kernel.crashing.org>
Subject: arch/powerpc/platforms/microwatt/rng.c:17:5: error: no previous prototype for 'microwatt_get_random_darn'
Date: Thu, 9 Sep 2021 17:14:12 +0800	[thread overview]
Message-ID: <202109091704.tIuJHYOZ-lkp@intel.com> (raw)

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Hi Paul,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   a3fa7a101dcff93791d1b1bdb3affcad1410c8c1
commit: c25769fddaec13509b6cdc7ad17458f239c4cee7 powerpc/microwatt: Add support for hardware random number generator
date:   3 months ago
config: powerpc-randconfig-c024-20210908 (attached as .config)
compiler: powerpc64le-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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c25769fddaec13509b6cdc7ad17458f239c4cee7
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout c25769fddaec13509b6cdc7ad17458f239c4cee7
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=powerpc 

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

All errors (new ones prefixed by >>):

>> arch/powerpc/platforms/microwatt/rng.c:17:5: error: no previous prototype for 'microwatt_get_random_darn' [-Werror=missing-prototypes]
      17 | int microwatt_get_random_darn(unsigned long *v)
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors


vim +/microwatt_get_random_darn +17 arch/powerpc/platforms/microwatt/rng.c

    16	
  > 17	int microwatt_get_random_darn(unsigned long *v)
    18	{
    19		unsigned long val;
    20	
    21		/* Using DARN with L=1 - 64-bit conditioned random number */
    22		asm volatile(PPC_DARN(%0, 1) : "=r"(val));
    23	
    24		if (val == DARN_ERR)
    25			return 0;
    26	
    27		*v = val;
    28	
    29		return 1;
    30	}
    31	

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

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             reply	other threads:[~2021-09-09  9:15 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-09  9:14 kernel test robot [this message]
  -- strict thread matches above, loose matches on Subject: below --
2021-11-11 21:35 kernel test robot
2021-08-18  5:52 kernel test robot

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