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Date:   Mon, 11 Sep 2017 01:04:08 +0800
From:   kbuild test robot <fengguang.wu@...el.com>
To:     Josh Poimboeuf <jpoimboe@...hat.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        Ingo Molnar <mingo@...nel.org>
Subject: kernel/cred.o: warning: objtool: abort_creds()+0x11c: unreachable
 instruction

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   4dfc2788033d30dfccfd4268e06dd73ce2c654ed
commit: 39358a033b2e4432052265c1fa0f36f572d8cfb5 objtool, x86: Add facility for asm code to provide unwind hints
date:   8 weeks ago
config: x86_64-randconfig-v0-09102158 (attached as .config)
compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7
reproduce:
        git checkout 39358a033b2e4432052265c1fa0f36f572d8cfb5
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

   In file included from include/linux/bitmap.h:8,
                    from include/linux/cpumask.h:11,
                    from arch/x86/include/asm/paravirt.h:15,
                    from arch/x86/include/asm/irqflags.h:64,
                    from include/linux/irqflags.h:15,
                    from include/linux/rcupdate.h:39,
                    from include/linux/rbtree.h:34,
                    from include/linux/key.h:20,
                    from include/linux/cred.h:17,
                    from kernel/cred.c:12:
   include/linux/string.h: In function 'strncpy':
   include/linux/string.h:209: warning: '______f' is static but declared in inline function 'strncpy' which is not static
   include/linux/string.h:211: warning: '______f' is static but declared in inline function 'strncpy' which is not static
   include/linux/string.h: In function 'strcat':
   include/linux/string.h:219: warning: '______f' is static but declared in inline function 'strcat' which is not static
   include/linux/string.h:221: warning: '______f' is static but declared in inline function 'strcat' which is not static
   include/linux/string.h: In function 'strlen':
   include/linux/string.h:230: warning: '______f' is static but declared in inline function 'strlen' which is not static
   include/linux/string.h:233: warning: '______f' is static but declared in inline function 'strlen' which is not static
   include/linux/string.h: In function 'strnlen':
   include/linux/string.h:243: warning: '______f' is static but declared in inline function 'strnlen' which is not static
   include/linux/string.h: In function 'strlcpy':
   include/linux/string.h:255: warning: '______f' is static but declared in inline function 'strlcpy' which is not static
   include/linux/string.h:258: warning: '______f' is static but declared in inline function 'strlcpy' which is not static
   include/linux/string.h:260: warning: '______f' is static but declared in inline function 'strlcpy' which is not static
   include/linux/string.h:262: warning: '______f' is static but declared in inline function 'strlcpy' which is not static
   include/linux/string.h: In function 'strncat':
   include/linux/string.h:276: warning: '______f' is static but declared in inline function 'strncat' which is not static
   include/linux/string.h:280: warning: '______f' is static but declared in inline function 'strncat' which is not static
   include/linux/string.h: In function 'memset':
   include/linux/string.h:290: warning: '______f' is static but declared in inline function 'memset' which is not static
   include/linux/string.h:292: warning: '______f' is static but declared in inline function 'memset' which is not static
   include/linux/string.h: In function 'memcpy':
   include/linux/string.h:301: warning: '______f' is static but declared in inline function 'memcpy' which is not static
   include/linux/string.h:302: warning: '______f' is static but declared in inline function 'memcpy' which is not static
   include/linux/string.h:304: warning: '______f' is static but declared in inline function 'memcpy' which is not static
   include/linux/string.h:307: warning: '______f' is static but declared in inline function 'memcpy' which is not static
   include/linux/string.h: In function 'memmove':
   include/linux/string.h:316: warning: '______f' is static but declared in inline function 'memmove' which is not static
   include/linux/string.h:317: warning: '______f' is static but declared in inline function 'memmove' which is not static
   include/linux/string.h:319: warning: '______f' is static but declared in inline function 'memmove' which is not static
   include/linux/string.h:322: warning: '______f' is static but declared in inline function 'memmove' which is not static
   include/linux/string.h: In function 'memscan':
   include/linux/string.h:331: warning: '______f' is static but declared in inline function 'memscan' which is not static
   include/linux/string.h:333: warning: '______f' is static but declared in inline function 'memscan' which is not static
   include/linux/string.h: In function 'memcmp':
   include/linux/string.h:342: warning: '______f' is static but declared in inline function 'memcmp' which is not static
   include/linux/string.h:343: warning: '______f' is static but declared in inline function 'memcmp' which is not static
   include/linux/string.h:345: warning: '______f' is static but declared in inline function 'memcmp' which is not static
   include/linux/string.h:348: warning: '______f' is static but declared in inline function 'memcmp' which is not static
   include/linux/string.h: In function 'memchr':
   include/linux/string.h:356: warning: '______f' is static but declared in inline function 'memchr' which is not static
   include/linux/string.h:358: warning: '______f' is static but declared in inline function 'memchr' which is not static
   include/linux/string.h: In function 'memchr_inv':
   include/linux/string.h:367: warning: '______f' is static but declared in inline function 'memchr_inv' which is not static
   include/linux/string.h:369: warning: '______f' is static but declared in inline function 'memchr_inv' which is not static
   include/linux/string.h: In function 'kmemdup':
   include/linux/string.h:378: warning: '______f' is static but declared in inline function 'kmemdup' which is not static
   include/linux/string.h:380: warning: '______f' is static but declared in inline function 'kmemdup' which is not static
   include/linux/string.h: In function 'strcpy':
   include/linux/string.h:390: warning: '______f' is static but declared in inline function 'strcpy' which is not static
>> kernel/cred.o: warning: objtool: abort_creds()+0x11c: unreachable instruction

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

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