Hi,

[auto build test ERROR on clk/clk-next]
[also build test ERROR on v4.7-rc5 next-20160629]
[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/Dong-Aisheng/clk-core-support-clocks-which-requires-parents-enable/20160629-231445
base:   https://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git clk-next
config: arm-viper_defconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (Debian 5.3.1-8) 5.3.1 20160205
reproduce:
        wget 
https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross
 -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=arm 

All errors (new ones prefixed by >>):

   include/linux/export.h:63:39: error: declaration of 
'__ksymtab_clk_notifier_register' with no linkage follows extern declaration
     __visible const struct kernel_symbol __ksymtab_##sym \
                                          ^
   include/linux/export.h:94:25: note: in expansion of macro '___EXPORT_SYMBOL'
    #define __EXPORT_SYMBOL ___EXPORT_SYMBOL
                            ^
   include/linux/export.h:101:2: note: in expansion of macro '__EXPORT_SYMBOL'
     __EXPORT_SYMBOL(sym, "_gpl")
     ^
   drivers/clk/clk.c:2958:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
    EXPORT_SYMBOL_GPL(clk_notifier_register);
    ^
   include/linux/export.h:62:36: note: previous declaration of 
'__ksymtab_clk_notifier_register' was here
     extern const struct kernel_symbol __ksymtab_##sym; \
                                       ^
   include/linux/export.h:94:25: note: in expansion of macro '___EXPORT_SYMBOL'
    #define __EXPORT_SYMBOL ___EXPORT_SYMBOL
                            ^
   include/linux/export.h:101:2: note: in expansion of macro '__EXPORT_SYMBOL'
     __EXPORT_SYMBOL(sym, "_gpl")
     ^
   drivers/clk/clk.c:2958:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
    EXPORT_SYMBOL_GPL(clk_notifier_register);
    ^
   drivers/clk/clk.c:3005:19: error: non-static declaration of 
'clk_notifier_unregister' follows static declaration
    EXPORT_SYMBOL_GPL(clk_notifier_unregister);
                      ^
   include/linux/export.h:57:21: note: in definition of macro '___EXPORT_SYMBOL'
     extern typeof(sym) sym;     \
                        ^
   drivers/clk/clk.c:3005:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
    EXPORT_SYMBOL_GPL(clk_notifier_unregister);
    ^
   drivers/clk/clk.c:2971:5: note: previous definition of 
'clk_notifier_unregister' was here
    int clk_notifier_unregister(struct clk *clk, struct notifier_block *nb)
        ^
   In file included from include/linux/linkage.h:6:0,
                    from include/linux/kernel.h:6,
                    from include/linux/clk.h:16,
                    from drivers/clk/clk.c:12:
   include/linux/export.h:63:25: warning: '__used__' attribute ignored 
[-Wattributes]
     __visible const struct kernel_symbol __ksymtab_##sym \
                            ^
   include/linux/export.h:94:25: note: in expansion of macro '___EXPORT_SYMBOL'
    #define __EXPORT_SYMBOL ___EXPORT_SYMBOL
                            ^
   include/linux/export.h:101:2: note: in expansion of macro '__EXPORT_SYMBOL'
     __EXPORT_SYMBOL(sym, "_gpl")
     ^
   drivers/clk/clk.c:3005:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
    EXPORT_SYMBOL_GPL(clk_notifier_unregister);
    ^
   include/linux/export.h:63:39: error: section attribute cannot be specified 
for local variables
     __visible const struct kernel_symbol __ksymtab_##sym \
                                          ^
   include/linux/export.h:94:25: note: in expansion of macro '___EXPORT_SYMBOL'
    #define __EXPORT_SYMBOL ___EXPORT_SYMBOL
                            ^
   include/linux/export.h:101:2: note: in expansion of macro '__EXPORT_SYMBOL'
     __EXPORT_SYMBOL(sym, "_gpl")
     ^
   drivers/clk/clk.c:3005:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
    EXPORT_SYMBOL_GPL(clk_notifier_unregister);
    ^
   include/linux/export.h:63:25: warning: 'externally_visible' attribute have 
effect only on public objects [-Wattributes]
     __visible const struct kernel_symbol __ksymtab_##sym \
                            ^
   include/linux/export.h:94:25: note: in expansion of macro '___EXPORT_SYMBOL'
    #define __EXPORT_SYMBOL ___EXPORT_SYMBOL
                            ^
   include/linux/export.h:101:2: note: in expansion of macro '__EXPORT_SYMBOL'
     __EXPORT_SYMBOL(sym, "_gpl")
     ^
   drivers/clk/clk.c:3005:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
    EXPORT_SYMBOL_GPL(clk_notifier_unregister);
    ^
   include/linux/export.h:63:39: error: declaration of 
'__ksymtab_clk_notifier_unregister' with no linkage follows extern declaration
     __visible const struct kernel_symbol __ksymtab_##sym \
                                          ^
   include/linux/export.h:94:25: note: in expansion of macro '___EXPORT_SYMBOL'
    #define __EXPORT_SYMBOL ___EXPORT_SYMBOL
                            ^
   include/linux/export.h:101:2: note: in expansion of macro '__EXPORT_SYMBOL'
     __EXPORT_SYMBOL(sym, "_gpl")
     ^
   drivers/clk/clk.c:3005:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
    EXPORT_SYMBOL_GPL(clk_notifier_unregister);
    ^
   include/linux/export.h:62:36: note: previous declaration of 
'__ksymtab_clk_notifier_unregister' was here
     extern const struct kernel_symbol __ksymtab_##sym; \
                                       ^
   include/linux/export.h:94:25: note: in expansion of macro '___EXPORT_SYMBOL'
    #define __EXPORT_SYMBOL ___EXPORT_SYMBOL
                            ^
   include/linux/export.h:101:2: note: in expansion of macro '__EXPORT_SYMBOL'
     __EXPORT_SYMBOL(sym, "_gpl")
     ^
   drivers/clk/clk.c:3005:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
    EXPORT_SYMBOL_GPL(clk_notifier_unregister);
    ^
>> include/linux/export.h:63:25: error: expected declaration or statement at 
>> end of input
     __visible const struct kernel_symbol __ksymtab_##sym \
                            ^
   include/linux/export.h:94:25: note: in expansion of macro '___EXPORT_SYMBOL'
    #define __EXPORT_SYMBOL ___EXPORT_SYMBOL
                            ^
   include/linux/export.h:101:2: note: in expansion of macro '__EXPORT_SYMBOL'
     __EXPORT_SYMBOL(sym, "_gpl")
     ^
   drivers/clk/clk.c:3005:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
    EXPORT_SYMBOL_GPL(clk_notifier_unregister);
    ^

vim +63 include/linux/export.h

f5016932 Paul Gortmaker 2011-05-23  57          extern typeof(sym) sym;         
                        \
f5016932 Paul Gortmaker 2011-05-23  58          __CRC_SYMBOL(sym, sec)          
                        \
f5016932 Paul Gortmaker 2011-05-23  59          static const char 
__kstrtab_##sym[]                     \
f5016932 Paul Gortmaker 2011-05-23  60          
__attribute__((section("__ksymtab_strings"), aligned(1))) \
b92021b0 Rusty Russell  2013-03-15  61          = VMLINUX_SYMBOL_STR(sym);      
                        \
7b4ec8dd Johannes Berg  2014-01-16  62          extern const struct 
kernel_symbol __ksymtab_##sym;      \
e0f244c6 Andi Kleen     2013-10-23 @63          __visible const struct 
kernel_symbol __ksymtab_##sym    \
f5016932 Paul Gortmaker 2011-05-23  64          __used                          
                        \
f5016932 Paul Gortmaker 2011-05-23  65          
__attribute__((section("___ksymtab" sec "+" #sym), unused))     \
f5016932 Paul Gortmaker 2011-05-23  66          = { (unsigned long)&sym, 
__kstrtab_##sym }
f5016932 Paul Gortmaker 2011-05-23  67  
c1a95fda Nicolas Pitre  2016-01-22  68  #if defined(__KSYM_DEPS__)
c1a95fda Nicolas Pitre  2016-01-22  69  
c1a95fda Nicolas Pitre  2016-01-22  70  /*
c1a95fda Nicolas Pitre  2016-01-22  71   * For fine grained build dependencies, 
we want to tell the build system
c1a95fda Nicolas Pitre  2016-01-22  72   * about each possible exported symbol 
even if they're not actually exported.
c1a95fda Nicolas Pitre  2016-01-22  73   * We use a string pattern that is 
unlikely to be valid code that the build
c1a95fda Nicolas Pitre  2016-01-22  74   * system filters out from the 
preprocessor output (see ksym_dep_filter
c1a95fda Nicolas Pitre  2016-01-22  75   * in scripts/Kbuild.include).
c1a95fda Nicolas Pitre  2016-01-22  76   */
c1a95fda Nicolas Pitre  2016-01-22  77  #define __EXPORT_SYMBOL(sym, sec)       
=== __KSYM_##sym ===
c1a95fda Nicolas Pitre  2016-01-22  78  
c1a95fda Nicolas Pitre  2016-01-22  79  #elif defined(CONFIG_TRIM_UNUSED_KSYMS)
f2355416 Nicolas Pitre  2016-01-22  80  
f2355416 Nicolas Pitre  2016-01-22  81  #include <linux/kconfig.h>
f2355416 Nicolas Pitre  2016-01-22  82  #include <generated/autoksyms.h>
f2355416 Nicolas Pitre  2016-01-22  83  
f2355416 Nicolas Pitre  2016-01-22  84  #define __EXPORT_SYMBOL(sym, sec)       
                        \
f2355416 Nicolas Pitre  2016-01-22  85          __cond_export_sym(sym, sec, 
config_enabled(__KSYM_##sym))
f2355416 Nicolas Pitre  2016-01-22  86  #define __cond_export_sym(sym, sec, 
conf)                       \
f2355416 Nicolas Pitre  2016-01-22  87          ___cond_export_sym(sym, sec, 
conf)
f2355416 Nicolas Pitre  2016-01-22  88  #define ___cond_export_sym(sym, sec, 
enabled)                   \
f2355416 Nicolas Pitre  2016-01-22  89          
__cond_export_sym_##enabled(sym, sec)
f2355416 Nicolas Pitre  2016-01-22  90  #define __cond_export_sym_1(sym, sec) 
___EXPORT_SYMBOL(sym, sec)
f2355416 Nicolas Pitre  2016-01-22  91  #define __cond_export_sym_0(sym, sec) 
/* nothing */
f2355416 Nicolas Pitre  2016-01-22  92  
f2355416 Nicolas Pitre  2016-01-22  93  #else
f2355416 Nicolas Pitre  2016-01-22 @94  #define __EXPORT_SYMBOL ___EXPORT_SYMBOL
f2355416 Nicolas Pitre  2016-01-22  95  #endif
f2355416 Nicolas Pitre  2016-01-22  96  
f5016932 Paul Gortmaker 2011-05-23  97  #define EXPORT_SYMBOL(sym)              
                        \

:::::: The code at line 63 was first introduced by commit
:::::: e0f244c63fc9d192dfd399cc2677bbdca61994b1 asmlinkage, module: Make 
ksymtab and kcrctab symbols and __this_module __visible

:::::: TO: Andi Kleen <[email protected]>
:::::: CC: Rusty Russell <[email protected]>

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

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