Hi Arnd,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.14-rc3 next-20170929]
[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/string-h-work-around-for-increased-stack-usage/20171003-210611
config: x86_64-randconfig-ws0-10040032 (attached as .config)
compiler: gcc-4.8 (Debian 4.8.4-1) 4.8.4
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

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

   In file included from lib/string.c:23:0:
>> include/linux/string.h:235:2: error: expected identifier or '(' before 'do'
     do { \
     ^
>> lib/string.c:1048:6: note: in expansion of macro 'fortify_panic'
    void fortify_panic(const char *name)
         ^
>> include/linux/string.h:238:4: error: expected identifier or '(' before 'while'
     } while (0)
       ^
>> lib/string.c:1048:6: note: in expansion of macro 'fortify_panic'
    void fortify_panic(const char *name)
         ^

vim +235 include/linux/string.h

   231	
   232	/* work around GCC PR82365 */
   233	#if defined(CONFIG_KASAN) && !defined(__clang__) && GCC_VERSION <= 80000
   234	#define fortify_panic(x) \
 > 235		do { \
   236			asm volatile(""); \
   237			fortify_panic(x); \
 > 238		} while (0)
   239	#endif
   240	

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