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Date:   Sun, 3 Oct 2021 02:31:22 +0800
From:   kernel test robot <lkp@...el.com>
To:     Hector Martin <marcan@...can.st>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org
Subject: [asahilinux:cpufreq/wip 16/16] drivers/base/power/domain.c:2298:1:
 error: redefinition of '__ksymtab_of_genpd_add_provider_simple'

tree:   https://github.com/AsahiLinux/linux cpufreq/wip
head:   e44f8c4999018e6bbbf00e94afe4b35809aa1248
commit: e44f8c4999018e6bbbf00e94afe4b35809aa1248 [16/16] cpufreq/mcc wip
config: powerpc-randconfig-r003-20211002 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 962e503cc8bc411f7523cc393acae8aae425b1c4)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install powerpc cross compiling tool for clang build
        # apt-get install binutils-powerpc-linux-gnu
        # https://github.com/AsahiLinux/linux/commit/e44f8c4999018e6bbbf00e94afe4b35809aa1248
        git remote add asahilinux https://github.com/AsahiLinux/linux
        git fetch --no-tags asahilinux cpufreq/wip
        git checkout e44f8c4999018e6bbbf00e94afe4b35809aa1248
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/base/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   In file included from drivers/base/power/domain.c:11:
   In file included from include/linux/io.h:13:
   In file included from arch/powerpc/include/asm/io.h:619:
   arch/powerpc/include/asm/io-defs.h:43:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   DEF_PCI_AC_NORET(insb, (unsigned long p, void *b, unsigned long c),
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
                   __do_##name al;                                 \
                   ^~~~~~~~~~~~~~
   <scratch space>:115:1: note: expanded from here
   __do_insb
   ^
   arch/powerpc/include/asm/io.h:556:56: note: expanded from macro '__do_insb'
   #define __do_insb(p, b, n)      readsb((PCI_IO_ADDR)_IO_BASE+(p), (b), (n))
                                          ~~~~~~~~~~~~~~~~~~~~~^
   In file included from drivers/base/power/domain.c:11:
   In file included from include/linux/io.h:13:
   In file included from arch/powerpc/include/asm/io.h:619:
   arch/powerpc/include/asm/io-defs.h:45:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   DEF_PCI_AC_NORET(insw, (unsigned long p, void *b, unsigned long c),
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
                   __do_##name al;                                 \
                   ^~~~~~~~~~~~~~
   <scratch space>:117:1: note: expanded from here
   __do_insw
   ^
   arch/powerpc/include/asm/io.h:557:56: note: expanded from macro '__do_insw'
   #define __do_insw(p, b, n)      readsw((PCI_IO_ADDR)_IO_BASE+(p), (b), (n))
                                          ~~~~~~~~~~~~~~~~~~~~~^
   In file included from drivers/base/power/domain.c:11:
   In file included from include/linux/io.h:13:
   In file included from arch/powerpc/include/asm/io.h:619:
   arch/powerpc/include/asm/io-defs.h:47:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   DEF_PCI_AC_NORET(insl, (unsigned long p, void *b, unsigned long c),
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
                   __do_##name al;                                 \
                   ^~~~~~~~~~~~~~
   <scratch space>:119:1: note: expanded from here
   __do_insl
   ^
   arch/powerpc/include/asm/io.h:558:56: note: expanded from macro '__do_insl'
   #define __do_insl(p, b, n)      readsl((PCI_IO_ADDR)_IO_BASE+(p), (b), (n))
                                          ~~~~~~~~~~~~~~~~~~~~~^
   In file included from drivers/base/power/domain.c:11:
   In file included from include/linux/io.h:13:
   In file included from arch/powerpc/include/asm/io.h:619:
   arch/powerpc/include/asm/io-defs.h:49:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   DEF_PCI_AC_NORET(outsb, (unsigned long p, const void *b, unsigned long c),
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
                   __do_##name al;                                 \
                   ^~~~~~~~~~~~~~
   <scratch space>:121:1: note: expanded from here
   __do_outsb
   ^
   arch/powerpc/include/asm/io.h:559:58: note: expanded from macro '__do_outsb'
   #define __do_outsb(p, b, n)     writesb((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
                                           ~~~~~~~~~~~~~~~~~~~~~^
   In file included from drivers/base/power/domain.c:11:
   In file included from include/linux/io.h:13:
   In file included from arch/powerpc/include/asm/io.h:619:
   arch/powerpc/include/asm/io-defs.h:51:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   DEF_PCI_AC_NORET(outsw, (unsigned long p, const void *b, unsigned long c),
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
                   __do_##name al;                                 \
                   ^~~~~~~~~~~~~~
   <scratch space>:123:1: note: expanded from here
   __do_outsw
   ^
   arch/powerpc/include/asm/io.h:560:58: note: expanded from macro '__do_outsw'
   #define __do_outsw(p, b, n)     writesw((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
                                           ~~~~~~~~~~~~~~~~~~~~~^
   In file included from drivers/base/power/domain.c:11:
   In file included from include/linux/io.h:13:
   In file included from arch/powerpc/include/asm/io.h:619:
   arch/powerpc/include/asm/io-defs.h:53:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   DEF_PCI_AC_NORET(outsl, (unsigned long p, const void *b, unsigned long c),
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
                   __do_##name al;                                 \
                   ^~~~~~~~~~~~~~
   <scratch space>:125:1: note: expanded from here
   __do_outsl
   ^
   arch/powerpc/include/asm/io.h:561:58: note: expanded from macro '__do_outsl'
   #define __do_outsl(p, b, n)     writesl((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
                                           ~~~~~~~~~~~~~~~~~~~~~^
>> drivers/base/power/domain.c:2298:1: error: redefinition of '__ksymtab_of_genpd_add_provider_simple'
   EXPORT_SYMBOL_GPL(of_genpd_add_provider_simple);
   ^
   include/linux/export.h:164:33: note: expanded from macro 'EXPORT_SYMBOL_GPL'
   #define EXPORT_SYMBOL_GPL(sym)          _EXPORT_SYMBOL(sym, "_gpl")
                                           ^
   include/linux/export.h:160:34: note: expanded from macro '_EXPORT_SYMBOL'
   #define _EXPORT_SYMBOL(sym, sec)        __EXPORT_SYMBOL(sym, sec, "")
                                           ^
   include/linux/export.h:152:39: note: expanded from macro '__EXPORT_SYMBOL'
   #define __EXPORT_SYMBOL(sym, sec, ns)   ___EXPORT_SYMBOL(sym, sec, ns)
                                           ^
   include/linux/export.h:108:2: note: expanded from macro '___EXPORT_SYMBOL'
           __KSYMTAB_ENTRY(sym, sec)
           ^
   include/linux/export.h:67:36: note: expanded from macro '__KSYMTAB_ENTRY'
           static const struct kernel_symbol __ksymtab_##sym               \
                                             ^
   <scratch space>:84:1: note: expanded from here
   __ksymtab_of_genpd_add_provider_simple
   ^
   drivers/base/power/domain.c:2285:1: note: previous definition is here
   EXPORT_SYMBOL_GPL(of_genpd_add_provider_simple);
   ^
   include/linux/export.h:164:33: note: expanded from macro 'EXPORT_SYMBOL_GPL'
   #define EXPORT_SYMBOL_GPL(sym)          _EXPORT_SYMBOL(sym, "_gpl")
                                           ^
   include/linux/export.h:160:34: note: expanded from macro '_EXPORT_SYMBOL'
   #define _EXPORT_SYMBOL(sym, sec)        __EXPORT_SYMBOL(sym, sec, "")
                                           ^
   include/linux/export.h:152:39: note: expanded from macro '__EXPORT_SYMBOL'
   #define __EXPORT_SYMBOL(sym, sec, ns)   ___EXPORT_SYMBOL(sym, sec, ns)
                                           ^
   include/linux/export.h:108:2: note: expanded from macro '___EXPORT_SYMBOL'
           __KSYMTAB_ENTRY(sym, sec)
           ^
   include/linux/export.h:67:36: note: expanded from macro '__KSYMTAB_ENTRY'
           static const struct kernel_symbol __ksymtab_##sym               \
                                             ^
   <scratch space>:72:1: note: expanded from here
   __ksymtab_of_genpd_add_provider_simple
   ^
   6 warnings and 1 error generated.


vim +/__ksymtab_of_genpd_add_provider_simple +2298 drivers/base/power/domain.c

e44f8c4999018e Hector Martin 2021-10-03  2286  
e44f8c4999018e Hector Martin 2021-10-03  2287  /**
e44f8c4999018e Hector Martin 2021-10-03  2288   * of_genpd_add_provider_simple_noclk() - Register a simple clockless
e44f8c4999018e Hector Martin 2021-10-03  2289   *   PM domain provider
e44f8c4999018e Hector Martin 2021-10-03  2290   * @np: Device node pointer associated with the PM domain provider.
e44f8c4999018e Hector Martin 2021-10-03  2291   * @genpd: Pointer to PM domain associated with the PM domain provider.
e44f8c4999018e Hector Martin 2021-10-03  2292   */
e44f8c4999018e Hector Martin 2021-10-03  2293  int of_genpd_add_provider_simple_noclk(struct device_node *np,
e44f8c4999018e Hector Martin 2021-10-03  2294  				       struct generic_pm_domain *genpd)
e44f8c4999018e Hector Martin 2021-10-03  2295  {
e44f8c4999018e Hector Martin 2021-10-03  2296  	return _of_genpd_add_provider_simple(np, genpd, false);
e44f8c4999018e Hector Martin 2021-10-03  2297  }
892ebdcccb4e11 Jon Hunter    2016-09-12 @2298  EXPORT_SYMBOL_GPL(of_genpd_add_provider_simple);
892ebdcccb4e11 Jon Hunter    2016-09-12  2299  

:::::: The code at line 2298 was first introduced by commit
:::::: 892ebdcccb4e11c5b43036a50e89e3869df5b429 PM / Domains: Don't expose xlate and provider helper functions

:::::: TO: Jon Hunter <jonathanh@...dia.com>
:::::: CC: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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