Re: [PATCH 2/3] m68k: mac: use time64_t in RTC handling

From: kbuild test robot <lkp@intel.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: kbuild-all@01.org, Paul Mackerras <paulus@samba.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Joshua Thompson <funaho@jurai.org>,
	Mathieu Malaterre <malat@debian.org>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Greg Ungerer <gerg@linux-m68k.org>,
	linux-m68k@lists.linux-m68k.org, linuxppc-dev@lists.ozlabs.org,
	linux-kernel@vger.kernel.org, y2038@lists.linaro.org,
	Meelis Roos <mroos@linux.ee>, Arnd Bergmann <arnd@arndb.de>
Subject: Re: [PATCH 2/3] m68k: mac: use time64_t in RTC handling
Date: Tue, 19 Jun 2018 00:55:50 +0800	[thread overview]
Message-ID: <201806190005.ceeCMSOH%fengguang.wu@intel.com> (raw)
In-Reply-To: <20180618140518.2920804-2-arnd@arndb.de>

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Hi Arnd,

I love your patch! Yet something to improve:

[auto build test ERROR on powerpc/next]
[also build test ERROR on v4.18-rc1 next-20180618]
[cannot apply to m68k/for-next]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Arnd-Bergmann/powerpc-mac-fix-rtc-read-functions/20180618-222412
base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: m68k-multi_defconfig (attached as .config)
compiler: m68k-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        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
        GCC_VERSION=7.2.0 make.cross ARCH=m68k 

All errors (new ones prefixed by >>):

   arch/m68k/mac/misc.c: In function 'cuda_read_time':
>> arch/m68k/mac/misc.c:48:36: error: expected expression before '|' token
     time = (u32)((req.reply[3] << 24( | (req.reply[4] << 16) |
                                       ^
>> arch/m68k/mac/misc.c:48:32: error: called object is not a function or function pointer
     time = (u32)((req.reply[3] << 24( | (req.reply[4] << 16) |
                                   ^~
>> arch/m68k/mac/misc.c:49:43: error: expected ')' before ';' token
           (req.reply[5] << 8) | req.reply[6]);
                                              ^
   arch/m68k/mac/misc.c:55:1: error: expected ')' before '}' token
    }
    ^
>> arch/m68k/mac/misc.c:55:1: error: expected ';' before '}' token
   arch/m68k/mac/misc.c:55:1: warning: control reaches end of non-void function [-Wreturn-type]
    }
    ^

vim +48 arch/m68k/mac/misc.c

    36	
    37	#ifdef CONFIG_ADB_CUDA
    38	static time64_t cuda_read_time(void)
    39	{
    40		struct adb_request req;
    41		time64_t time;
    42	
    43		if (cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_GET_TIME) < 0)
    44			return 0;
    45		while (!req.complete)
    46			cuda_poll();
    47	
  > 48		time = (u32)((req.reply[3] << 24( | (req.reply[4] << 16) |
  > 49			     (req.reply[5] << 8) | req.reply[6]);
    50	
    51		/* it's either after year 2040, or the RTC has gone backwards */
    52		WARN_ON(time < RTC_OFFSET);
    53	
    54		return time - RTC_OFFSET;
  > 55	}
    56	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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