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