linux-kernel - Re: [PATCH v3 4/7] alpha: Add support for memset16

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Date:   Sun, 26 Mar 2017 15:28:02 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Matthew Wilcox <willy@...radead.org>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        linux-arch@...r.kernel.org, linux-mips@...ux-mips.org,
        linux-fbdev@...r.kernel.org,
        Matthew Wilcox <mawilcox@...rosoft.com>, x86@...nel.org,
        Minchan Kim <minchan@...nel.org>, linux-alpha@...r.kernel.org,
        sparclinux@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 4/7] alpha: Add support for memset16

Hi Matthew,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.11-rc3 next-20170324]
[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/Matthew-Wilcox/Add-memsetN-functions/20170326-140108
config: alpha-allyesconfig (attached as .config)
compiler: alpha-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=alpha 

All errors (new ones prefixed by >>):

   In file included from include/linux/string.h:18:0,
                    from include/linux/bitmap.h:8,
                    from include/linux/cpumask.h:11,
                    from include/linux/rcupdate.h:40,
                    from include/linux/rculist.h:10,
                    from include/linux/pid.h:4,
                    from include/linux/sched.h:13,
                    from arch/alpha/kernel/asm-offsets.c:9:
   arch/alpha/include/asm/string.h: In function 'memset16':
>> arch/alpha/include/asm/string.h:74:2: error: expected ';' before 'return'
     return __memset16(p, v, n * 2);
     ^~~~~~
   make[2]: *** [arch/alpha/kernel/asm-offsets.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [sub-make] Error 2

vim +74 arch/alpha/include/asm/string.h

    68	#define __HAVE_ARCH_MEMSET16
    69	extern void * __memset16(void *dest, unsigned short, size_t count);
    70	static inline void *memset16(uint16_t *p, uint16_t v, size_t n)
    71	{
    72		if (__builtin_constant_p(v))
    73			return __constant_c_memset(p, 0x0001000100010001UL * v, n * 2)
  > 74		return __memset16(p, v, n * 2);
    75	}
    76	
    77	#endif /* __KERNEL__ */

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