arch/mips/kernel/mips-cpc.c:47: undefined reference to `mips_cpc_default_phys_base'

[kbuild test robot]

Hi Paul,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   0c2b6dc4fd4fa13796b319aae969a009f03222c6
commit: eed0eabd12ef061821cbfa20d903476e07645320 MIPS: generic: Introduce generic DT-based board support
date:   2 weeks ago
config: mips-generic_defconfig (attached as .config)
compiler: mipsel-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
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
        git checkout eed0eabd12ef061821cbfa20d903476e07645320
        # save the attached .config to linux build tree
        make.cross ARCH=mips 

All errors (new ones prefixed by >>):

   arch/mips/built-in.o: In function `mips_cpc_phys_base':
>> arch/mips/kernel/mips-cpc.c:47: undefined reference to `mips_cpc_default_phys_base'

vim +47 arch/mips/kernel/mips-cpc.c

8dedde6b Bjorn Helgaas   2015-07-12  31  static phys_addr_t mips_cpc_phys_base(void)
9c38cf44 Paul Burton     2014-01-15  32  {
391057d9 Markos Chandras 2015-07-09  33  	unsigned long cpc_base;
9c38cf44 Paul Burton     2014-01-15  34  
9c38cf44 Paul Burton     2014-01-15  35  	if (!mips_cm_present())
9c38cf44 Paul Burton     2014-01-15  36  		return 0;
9c38cf44 Paul Burton     2014-01-15  37  
9c38cf44 Paul Burton     2014-01-15  38  	if (!(read_gcr_cpc_status() & CM_GCR_CPC_STATUS_EX_MSK))
9c38cf44 Paul Burton     2014-01-15  39  		return 0;
9c38cf44 Paul Burton     2014-01-15  40  
9c38cf44 Paul Burton     2014-01-15  41  	/* If the CPC is already enabled, leave it so */
9c38cf44 Paul Burton     2014-01-15  42  	cpc_base = read_gcr_cpc_base();
9c38cf44 Paul Burton     2014-01-15  43  	if (cpc_base & CM_GCR_CPC_BASE_CPCEN_MSK)
9c38cf44 Paul Burton     2014-01-15  44  		return cpc_base & CM_GCR_CPC_BASE_CPCBASE_MSK;
9c38cf44 Paul Burton     2014-01-15  45  
9c38cf44 Paul Burton     2014-01-15  46  	/* Otherwise, give it the default address & enable it */
9c38cf44 Paul Burton     2014-01-15 @47  	cpc_base = mips_cpc_default_phys_base();
9c38cf44 Paul Burton     2014-01-15  48  	write_gcr_cpc_base(cpc_base | CM_GCR_CPC_BASE_CPCEN_MSK);
9c38cf44 Paul Burton     2014-01-15  49  	return cpc_base;
9c38cf44 Paul Burton     2014-01-15  50  }
9c38cf44 Paul Burton     2014-01-15  51  
9c38cf44 Paul Burton     2014-01-15  52  int mips_cpc_probe(void)
9c38cf44 Paul Burton     2014-01-15  53  {
15d45cce Ralf Baechle    2014-11-22  54  	phys_addr_t addr;
6b89d22e Matt Redfearn   2016-09-07  55  	unsigned int cpu;

:::::: The code at line 47 was first introduced by commit
:::::: 9c38cf44712af95a5ec3937d63faaea9b43eab9a MIPS: Add CPC probe, access functions

:::::: TO: Paul Burton <paul.burton@xxxxxxxxxx>
:::::: CC: Ralf Baechle <ralf@xxxxxxxxxxxxxx>

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