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Message-ID: <201712210602.PmcJ2Ozx%fengguang.wu@intel.com>
Date: Thu, 21 Dec 2017 06:32:08 +0800
From: kbuild test robot <fengguang.wu@...el.com>
To: Thomas Gleixner <tglx@...utronix.de>
Cc: kbuild-all@...org, linux-kernel@...r.kernel.org, tipbuild@...or.com
Subject: [tip:WIP.x86/pti 22/54]
arch/x86/include/asm/pgtable_32_types.h:48:4: error: 'FIXADDR_START'
undeclared
tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.x86/pti
head: 448c49e07e52076586e9e706212298d865ad7a27
commit: 8b65ec93225592fbc35ab8107fd880e505aae1ef [22/54] x86/cpu_entry_area: Move it out of fixmap
config: i386-randconfig-x016-201751 (attached as .config)
compiler: gcc-7 (Debian 7.2.0-12) 7.2.1 20171025
reproduce:
git checkout 8b65ec93225592fbc35ab8107fd880e505aae1ef
# save the attached .config to linux build tree
make ARCH=i386
All error/warnings (new ones prefixed by >>):
In file included from arch/x86/include/asm/pgtable_types.h:261:0,
from arch/x86/include/asm/paravirt_types.h:45,
from arch/x86/include/asm/ptrace.h:92,
from arch/x86/include/asm/math_emu.h:5,
from arch/x86/include/asm/processor.h:12,
from arch/x86/include/asm/cpufeature.h:5,
from arch/x86/include/asm/thread_info.h:53,
from include/linux/thread_info.h:38,
from arch/x86/include/asm/preempt.h:7,
from include/linux/preempt.h:81,
from include/linux/percpu.h:6,
from arch/x86/mm/cpu_entry_area.c:3:
arch/x86/include/asm/cpu_entry_area.h: In function 'get_cpu_entry_area':
>> arch/x86/include/asm/pgtable_32_types.h:48:4: error: 'FIXADDR_START' undeclared (first use in this function)
((FIXADDR_START - PAGE_SIZE * (CPU_ENTRY_AREA_PAGES + 1)) & PMD_MASK)
^
>> arch/x86/include/asm/cpu_entry_area.h:53:32: note: in expansion of macro 'CPU_ENTRY_AREA_BASE'
#define CPU_ENTRY_AREA_RO_IDT CPU_ENTRY_AREA_BASE
^~~~~~~~~~~~~~~~~~~
>> arch/x86/include/asm/cpu_entry_area.h:54:34: note: in expansion of macro 'CPU_ENTRY_AREA_RO_IDT'
#define CPU_ENTRY_AREA_PER_CPU (CPU_ENTRY_AREA_RO_IDT + PAGE_SIZE)
^~~~~~~~~~~~~~~~~~~~~
>> arch/x86/include/asm/cpu_entry_area.h:63:21: note: in expansion of macro 'CPU_ENTRY_AREA_PER_CPU'
unsigned long va = CPU_ENTRY_AREA_PER_CPU + cpu * CPU_ENTRY_AREA_SIZE;
^~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/pgtable_32_types.h:48:4: note: each undeclared identifier is reported only once for each function it appears in
((FIXADDR_START - PAGE_SIZE * (CPU_ENTRY_AREA_PAGES + 1)) & PMD_MASK)
^
>> arch/x86/include/asm/cpu_entry_area.h:53:32: note: in expansion of macro 'CPU_ENTRY_AREA_BASE'
#define CPU_ENTRY_AREA_RO_IDT CPU_ENTRY_AREA_BASE
^~~~~~~~~~~~~~~~~~~
>> arch/x86/include/asm/cpu_entry_area.h:54:34: note: in expansion of macro 'CPU_ENTRY_AREA_RO_IDT'
#define CPU_ENTRY_AREA_PER_CPU (CPU_ENTRY_AREA_RO_IDT + PAGE_SIZE)
^~~~~~~~~~~~~~~~~~~~~
>> arch/x86/include/asm/cpu_entry_area.h:63:21: note: in expansion of macro 'CPU_ENTRY_AREA_PER_CPU'
unsigned long va = CPU_ENTRY_AREA_PER_CPU + cpu * CPU_ENTRY_AREA_SIZE;
^~~~~~~~~~~~~~~~~~~~~~
In file included from arch/x86/mm/cpu_entry_area.c:5:0:
arch/x86/include/asm/pgtable.h: At top level:
arch/x86/include/asm/pgtable.h:47:8: error: unknown type name 'spinlock_t'
extern spinlock_t pgd_lock;
^~~~~~~~~~
vim +/FIXADDR_START +48 arch/x86/include/asm/pgtable_32_types.h
46
47 #define CPU_ENTRY_AREA_BASE \
> 48 ((FIXADDR_START - PAGE_SIZE * (CPU_ENTRY_AREA_PAGES + 1)) & PMD_MASK)
49
---
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