Messages in this thread | | | Date | Sun, 24 Dec 2017 03:04:51 +0800 | From | kbuild test robot <> | Subject | [tip:WIP.x86/pti 1/1] arch/x86/mm/cpu_entry_area.c:153:33: error: 'CPU_ENTRY_AREA_END' undeclared; did you mean 'CPU_ENTRY_AREA_BASE'? |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.x86/pti head: 1c4c1c2fa0c5c121210d47bc74ee85c5032b3ea9 commit: 1c4c1c2fa0c5c121210d47bc74ee85c5032b3ea9 [1/1] x86/pti: Prevent wraparound in setup_cpu_entry_area_ptes() on 32bit config: i386-randconfig-x007-201752 (attached as .config) compiler: gcc-7 (Debian 7.2.0-12) 7.2.1 20171025 reproduce: git checkout 1c4c1c2fa0c5c121210d47bc74ee85c5032b3ea9 # save the attached .config to linux build tree make ARCH=i386
All errors (new ones prefixed by >>):
arch/x86/mm/cpu_entry_area.c: In function 'setup_cpu_entry_area_ptes': >> arch/x86/mm/cpu_entry_area.c:153:33: error: 'CPU_ENTRY_AREA_END' undeclared (first use in this function); did you mean 'CPU_ENTRY_AREA_BASE'? for (; start < end && start >= CPU_ENTRY_AREA_END; start += PMD_SIZE) ^~~~~~~~~~~~~~~~~~ CPU_ENTRY_AREA_BASE arch/x86/mm/cpu_entry_area.c:153:33: note: each undeclared identifier is reported only once for each function it appears in
vim +153 arch/x86/mm/cpu_entry_area.c
140 141 static __init void setup_cpu_entry_area_ptes(void) 142 { 143 #ifdef CONFIG_X86_32 144 unsigned long start, end; 145 146 BUILD_BUG_ON(CPU_ENTRY_AREA_PAGES * PAGE_SIZE < CPU_ENTRY_AREA_MAP_SIZE); 147 BUG_ON(CPU_ENTRY_AREA_BASE & ~PMD_MASK); 148 149 start = CPU_ENTRY_AREA_BASE; 150 end = start + CPU_ENTRY_AREA_MAP_SIZE; 151 152 /* Careful here: start + PMD_SIZE might wrap around */ > 153 for (; start < end && start >= CPU_ENTRY_AREA_END; start += PMD_SIZE) 154 populate_extra_pte(start); 155 #endif 156 } 157
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