linux-kernel - Re: [PATCH] zlib: Mark get_unaligned16() as __maybe

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Date:   Fri, 19 May 2017 11:26:05 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Matthias Kaehlcke <mka@...omium.org>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        Matthias Kaehlcke <mka@...omium.org>
Subject: Re: [PATCH] zlib: Mark get_unaligned16() as __maybe_unused

Hi Matthias,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.12-rc1 next-20170518]
[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/Matthias-Kaehlcke/zlib-Mark-get_unaligned16-as-__maybe_unused/20170519-083133
config: powerpc-defconfig (attached as .config)
compiler: powerpc64-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=powerpc 

All error/warnings (new ones prefixed by >>):

>> arch/powerpc/boot/inffast.c:31:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'get_unaligned16'
    get_unaligned16(const unsigned short *p)
    ^~~~~~~~~~~~~~~
   arch/powerpc/boot/inffast.c: In function 'inflate_fast':
>> arch/powerpc/boot/inffast.c:48:27: warning: implicit declaration of function 'get_unaligned16' [-Wimplicit-function-declaration]
    #  define UP_UNALIGNED(a) get_unaligned16(++(a))
                              ^
   arch/powerpc/boot/inffast.c:281:20: note: in expansion of macro 'UP_UNALIGNED'
           PUP(sout) = UP_UNALIGNED(sfrom);
                       ^~~~~~~~~~~~
--
   In file included from ./arch/powerpc/boot/decompress_inflate.c:10:0,
                    from arch/powerpc/boot/decompress.c:37:
>> ./arch/powerpc/boot/inffast.c:31:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'get_unaligned16'
    get_unaligned16(const unsigned short *p)
    ^~~~~~~~~~~~~~~
   ./arch/powerpc/boot/inffast.c: In function 'inflate_fast':
>> ./arch/powerpc/boot/inffast.c:48:27: warning: implicit declaration of function 'get_unaligned16' [-Wimplicit-function-declaration]
    #  define UP_UNALIGNED(a) get_unaligned16(++(a))
                              ^
   ./arch/powerpc/boot/inffast.c:281:20: note: in expansion of macro 'UP_UNALIGNED'
           PUP(sout) = UP_UNALIGNED(sfrom);
                       ^~~~~~~~~~~~

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0-DAY kernel test infrastructure                Open Source Technology Center
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