Re: [PATCH 1/1] mm/page_owner: ignore everything below the IRQ entry point

[kbuild test robot <lkp@intel.com>]

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Hi Maninder,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on mmotm/master]
[also build test ERROR on v4.15-rc2 next-20171204]
[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/Maninder-Singh/mm-page_owner-ignore-everything-below-the-IRQ-entry-point/20171205-122901
base:   git://git.cmpxchg.org/linux-mmotm.git master
config: blackfin-allmodconfig (attached as .config)
compiler: bfin-uclinux-gcc (GCC) 6.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=blackfin 

All errors (new ones prefixed by >>):

   In file included from include/linux/interrupt.h:22:0,
                    from include/linux/kernel_stat.h:9,
                    from arch/blackfin/kernel/asm-offsets.c:11:
>> arch/blackfin/include/asm/sections.h:35:19: error: redefinition of 'arch_is_kernel_text'
    static inline int arch_is_kernel_text(unsigned long addr)
                      ^~~~~~~~~~~~~~~~~~~
   In file included from include/linux/stacktrace.h:6:0,
                    from include/linux/lockdep.h:29,
                    from include/linux/rcupdate.h:42,
                    from include/linux/rculist.h:11,
                    from include/linux/pid.h:5,
                    from include/linux/sched.h:14,
                    from arch/blackfin/kernel/asm-offsets.c:10:
   include/asm-generic/sections.h:63:19: note: previous definition of 'arch_is_kernel_text' was here
    static inline int arch_is_kernel_text(unsigned long addr)
                      ^~~~~~~~~~~~~~~~~~~
   In file included from include/linux/interrupt.h:22:0,
                    from include/linux/kernel_stat.h:9,
                    from arch/blackfin/kernel/asm-offsets.c:11:
>> arch/blackfin/include/asm/sections.h:48:19: error: redefinition of 'arch_is_kernel_data'
    static inline int arch_is_kernel_data(unsigned long addr)
                      ^~~~~~~~~~~~~~~~~~~
   In file included from include/linux/stacktrace.h:6:0,
                    from include/linux/lockdep.h:29,
                    from include/linux/rcupdate.h:42,
                    from include/linux/rculist.h:11,
                    from include/linux/pid.h:5,
                    from include/linux/sched.h:14,
                    from arch/blackfin/kernel/asm-offsets.c:10:
   include/asm-generic/sections.h:70:19: note: previous definition of 'arch_is_kernel_data' was here
    static inline int arch_is_kernel_data(unsigned long addr)
                      ^~~~~~~~~~~~~~~~~~~
   make[2]: *** [arch/blackfin/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 +/arch_is_kernel_text +35 arch/blackfin/include/asm/sections.h

e56770fb Mike Frysinger 2009-09-22  33  
e56770fb Mike Frysinger 2009-09-22  34  /* Blackfin systems have discontinuous memory map and no virtualized memory */
e56770fb Mike Frysinger 2009-09-22 @35  static inline int arch_is_kernel_text(unsigned long addr)
e56770fb Mike Frysinger 2009-09-22  36  {
e56770fb Mike Frysinger 2009-09-22  37  	return
e56770fb Mike Frysinger 2009-09-22  38  		(L1_CODE_LENGTH &&
e56770fb Mike Frysinger 2009-09-22  39  		 addr >= (unsigned long)_stext_l1 &&
e56770fb Mike Frysinger 2009-09-22  40  		 addr <  (unsigned long)_etext_l1)
e56770fb Mike Frysinger 2009-09-22  41  		||
e56770fb Mike Frysinger 2009-09-22  42  		(L2_LENGTH &&
e56770fb Mike Frysinger 2009-09-22  43  		 addr >= (unsigned long)_stext_l2 &&
e56770fb Mike Frysinger 2009-09-22  44  		 addr <  (unsigned long)_etext_l2);
e56770fb Mike Frysinger 2009-09-22  45  }
e56770fb Mike Frysinger 2009-09-22  46  #define arch_is_kernel_text(addr) arch_is_kernel_text(addr)
e56770fb Mike Frysinger 2009-09-22  47  
e56770fb Mike Frysinger 2009-09-22 @48  static inline int arch_is_kernel_data(unsigned long addr)
e56770fb Mike Frysinger 2009-09-22  49  {
e56770fb Mike Frysinger 2009-09-22  50  	return
e56770fb Mike Frysinger 2009-09-22  51  		(L1_DATA_A_LENGTH &&
e56770fb Mike Frysinger 2009-09-22  52  		 addr >= (unsigned long)_sdata_l1 &&
e56770fb Mike Frysinger 2009-09-22  53  		 addr <  (unsigned long)_ebss_l1)
e56770fb Mike Frysinger 2009-09-22  54  		||
e56770fb Mike Frysinger 2009-09-22  55  		(L1_DATA_B_LENGTH &&
e56770fb Mike Frysinger 2009-09-22  56  		 addr >= (unsigned long)_sdata_b_l1 &&
e56770fb Mike Frysinger 2009-09-22  57  		 addr <  (unsigned long)_ebss_b_l1)
e56770fb Mike Frysinger 2009-09-22  58  		||
e56770fb Mike Frysinger 2009-09-22  59  		(L2_LENGTH &&
e56770fb Mike Frysinger 2009-09-22  60  		 addr >= (unsigned long)_sdata_l2 &&
e56770fb Mike Frysinger 2009-09-22  61  		 addr <  (unsigned long)_ebss_l2);
e56770fb Mike Frysinger 2009-09-22  62  }
e56770fb Mike Frysinger 2009-09-22  63  #define arch_is_kernel_data(addr) arch_is_kernel_data(addr)
e56770fb Mike Frysinger 2009-09-22  64  

:::::: The code at line 35 was first introduced by commit
:::::: e56770fbc48c1517f620f9f68e3f728e74d52bf5 Blackfin: override text/data checking functions

:::::: TO: Mike Frysinger <vapier@gentoo.org>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>

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

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