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Date: Tue, 5 Dec 2017 13:39:17 +0800
From: kbuild test robot <lkp@...el.com>
To: Maninder Singh <maninder1.s@...sung.com>
Cc: kbuild-all@...org, aryabinin@...tuozzo.com, glider@...gle.com,
vyukov@...gle.com, mbenes@...e.cz, tglx@...utronix.de,
pombredanne@...b.com, mingo@...nel.org, gregkh@...uxfoundation.org,
jpoimboe@...hat.com, akpm@...ux-foundation.org, vbabka@...e.cz,
sfr@...b.auug.org.au, mhocko@...e.com,
linux-kernel@...r.kernel.org, kasan-dev@...glegroups.com,
linux-mm@...ck.org, a.sahrawat@...sung.com, pankaj.m@...sung.com,
Maninder Singh <maninder1.s@...sung.com>,
Vaneet Narang <v.narang@...sung.com>
Subject: Re: [PATCH 1/1] mm/page_owner: ignore everything below the IRQ entry
point
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@...too.org>
:::::: CC: Linus Torvalds <torvalds@...ux-foundation.org>
---
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