Re: [PATCH] MIPS: fix duplicate define

From: kbuild test robot
Date: Tue Nov 08 2016 - 18:47:56 EST

Hi Sudip,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.9-rc4 next-20161108]
[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/Sudip-Mukherjee/MIPS-fix-duplicate-define/20161109-054643
config: mips-jz4740 (attached as .config)
compiler: mips-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
# save the attached .config to linux build tree
make.cross ARCH=mips

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

In file included from arch/mips/include/asm/mach-ip22/spaces.h:25:0,
from arch/mips/include/asm/addrspace.h:13,
from arch/mips/include/asm/barrier.h:11,
from arch/mips/include/asm/bitops.h:18,
from include/linux/bitops.h:36,
from include/linux/kernel.h:10,
from include/linux/sched.h:17,
from arch/mips/kernel/asm-offsets.c:13:
arch/mips/include/asm/page.h: In function '___pa':
>> arch/mips/include/asm/mach-generic/spaces.h:93:23: error: 'CAC_BASE' undeclared (first use in this function)
#define PAGE_OFFSET (CAC_BASE + PHYS_OFFSET)
^
>> arch/mips/include/asm/page.h:190:13: note: in expansion of macro 'PAGE_OFFSET'
return x - PAGE_OFFSET + PHYS_OFFSET;
^~~~~~~~~~~
arch/mips/include/asm/mach-generic/spaces.h:93:23: note: each undeclared identifier is reported only once for each function it appears in
#define PAGE_OFFSET (CAC_BASE + PHYS_OFFSET)
^
>> arch/mips/include/asm/page.h:190:13: note: in expansion of macro 'PAGE_OFFSET'
return x - PAGE_OFFSET + PHYS_OFFSET;
^~~~~~~~~~~
arch/mips/include/asm/io.h: In function 'phys_to_virt':
>> arch/mips/include/asm/mach-generic/spaces.h:93:23: error: 'CAC_BASE' undeclared (first use in this function)
#define PAGE_OFFSET (CAC_BASE + PHYS_OFFSET)
^
>> arch/mips/include/asm/io.h:138:28: note: in expansion of macro 'PAGE_OFFSET'
return (void *)(address + PAGE_OFFSET - PHYS_OFFSET);
^~~~~~~~~~~
arch/mips/include/asm/io.h: In function 'isa_virt_to_bus':
>> arch/mips/include/asm/mach-generic/spaces.h:93:23: error: 'CAC_BASE' undeclared (first use in this function)
#define PAGE_OFFSET (CAC_BASE + PHYS_OFFSET)
^
arch/mips/include/asm/io.h:146:34: note: in expansion of macro 'PAGE_OFFSET'
return (unsigned long)address - PAGE_OFFSET;
^~~~~~~~~~~
arch/mips/include/asm/io.h: In function 'isa_bus_to_virt':
>> arch/mips/include/asm/mach-generic/spaces.h:93:23: error: 'CAC_BASE' undeclared (first use in this function)
#define PAGE_OFFSET (CAC_BASE + PHYS_OFFSET)
^
arch/mips/include/asm/io.h:151:28: note: in expansion of macro 'PAGE_OFFSET'
return (void *)(address + PAGE_OFFSET);
^~~~~~~~~~~
include/linux/mm.h: In function 'lowmem_page_address':
>> arch/mips/include/asm/mach-generic/spaces.h:93:23: error: 'CAC_BASE' undeclared (first use in this function)
#define PAGE_OFFSET (CAC_BASE + PHYS_OFFSET)
^
arch/mips/include/asm/page.h:193:49: note: in expansion of macro 'PAGE_OFFSET'
#define __va(x) ((void *)((unsigned long)(x) + PAGE_OFFSET - PHYS_OFFSET))
^~~~~~~~~~~
>> include/linux/mm.h:76:25: note: in expansion of macro '__va'
#define page_to_virt(x) __va(PFN_PHYS(page_to_pfn(x)))
^~~~
>> include/linux/mm.h:1005:9: note: in expansion of macro 'page_to_virt'
return page_to_virt(page);
^~~~~~~~~~~~
make[2]: *** [arch/mips/kernel/asm-offsets.s] Error 1
make[2]: Target '__build' not remade because of errors.
make[1]: *** [prepare0] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [sub-make] Error 2

vim +/CAC_BASE +93 arch/mips/include/asm/mach-generic/spaces.h

875d43e7 include/asm-mips/mach-generic/spaces.h Ralf Baechle 2005-09-03 87 #endif /* CONFIG_64BIT */
^1da177e include/asm-mips/mach-generic/spaces.h Linus Torvalds 2005-04-16 88
c4612c85 include/asm-mips/mach-generic/spaces.h Franck Bui-Huu 2007-06-04 89 /*
c4612c85 include/asm-mips/mach-generic/spaces.h Franck Bui-Huu 2007-06-04 90 * This handles the memory map.
c4612c85 include/asm-mips/mach-generic/spaces.h Franck Bui-Huu 2007-06-04 91 */
c4612c85 include/asm-mips/mach-generic/spaces.h Franck Bui-Huu 2007-06-04 92 #ifndef PAGE_OFFSET
db385015 include/asm-mips/mach-generic/spaces.h Franck Bui-Huu 2007-06-04 @93 #define PAGE_OFFSET (CAC_BASE + PHYS_OFFSET)
c4612c85 include/asm-mips/mach-generic/spaces.h Franck Bui-Huu 2007-06-04 94 #endif
c4612c85 include/asm-mips/mach-generic/spaces.h Franck Bui-Huu 2007-06-04 95
565b60de arch/mips/include/asm/mach-generic/spaces.h Kevin Cernekee 2010-09-07 96 #ifndef FIXADDR_TOP

:::::: The code at line 93 was first introduced by commit
:::::: db38501511a7513ec4f0ae9922d847c135cf3c78 [MIPS] Make PAGE_OFFSET aware of PHYS_OFFSET

:::::: TO: Franck Bui-Huu <fbuihuu@xxxxxxxxx>
:::::: CC: Ralf Baechle <ralf@xxxxxxxxxxxxxx>

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