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: tile-allmodconfig (attached as .config) compiler: tilegx-linux-gcc (GCC) 5.5.0 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=tile All error/warnings (new ones prefixed by >>): In file included from include/linux/interrupt.h:22:0, from include/linux/kernel_stat.h:9, from mm//swap.c:18: >> arch/tile/include/asm/sections.h:18:29: error: redefinition of 'arch_is_kernel_data' #define arch_is_kernel_data arch_is_kernel_data ^ >> arch/tile/include/asm/sections.h:38:19: note: in expansion of macro '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/spinlock_types.h:18, from include/linux/spinlock.h:82, from include/linux/mmzone.h:8, from include/linux/gfp.h:6, from include/linux/mm.h:10, from mm//swap.c:16: 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) ^ vim +/arch_is_kernel_data +18 arch/tile/include/asm/sections.h 867e359b Chris Metcalf 2010-05-28 17 867e359b Chris Metcalf 2010-05-28 @18 #define arch_is_kernel_data arch_is_kernel_data 867e359b Chris Metcalf 2010-05-28 19 867e359b Chris Metcalf 2010-05-28 20 #include 867e359b Chris Metcalf 2010-05-28 21 4a556f4f Chris Metcalf 2013-08-07 22 extern char vdso_start[], vdso_end[]; 4a556f4f Chris Metcalf 2013-08-07 23 #ifdef CONFIG_COMPAT 4a556f4f Chris Metcalf 2013-08-07 24 extern char vdso32_start[], vdso32_end[]; 4a556f4f Chris Metcalf 2013-08-07 25 #endif 0707ad30 Chris Metcalf 2010-06-25 26 0707ad30 Chris Metcalf 2010-06-25 27 /* Not exactly sections, but PC comparison points in the code. */ 0707ad30 Chris Metcalf 2010-06-25 28 extern char __rt_sigreturn[], __rt_sigreturn_end[]; 2f9ac29e Chris Metcalf 2013-08-06 29 #ifdef __tilegx__ 2f9ac29e Chris Metcalf 2013-08-06 30 extern char __start_unalign_asm_code[], __end_unalign_asm_code[]; 2f9ac29e Chris Metcalf 2013-08-06 31 #else 0707ad30 Chris Metcalf 2010-06-25 32 extern char sys_cmpxchg[], __sys_cmpxchg_end[]; 0707ad30 Chris Metcalf 2010-06-25 33 extern char __sys_cmpxchg_grab_lock[]; 0707ad30 Chris Metcalf 2010-06-25 34 extern char __start_atomic_asm_code[], __end_atomic_asm_code[]; 0707ad30 Chris Metcalf 2010-06-25 35 #endif 867e359b Chris Metcalf 2010-05-28 36 40a3b8df Jiang Liu 2013-07-03 37 /* Handle the discontiguity between _sdata and _text. */ 867e359b Chris Metcalf 2010-05-28 @38 static inline int arch_is_kernel_data(unsigned long addr) 867e359b Chris Metcalf 2010-05-28 39 { 867e359b Chris Metcalf 2010-05-28 40 return addr >= (unsigned long)_sdata && 867e359b Chris Metcalf 2010-05-28 41 addr < (unsigned long)_end; 867e359b Chris Metcalf 2010-05-28 42 } 867e359b Chris Metcalf 2010-05-28 43 :::::: The code at line 18 was first introduced by commit :::::: 867e359b97c970a60626d5d76bbe2a8fadbf38fb arch/tile: core support for Tilera 32-bit chips. :::::: TO: Chris Metcalf :::::: CC: Chris Metcalf --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation