Messages in this thread | | | Date | Tue, 9 May 2017 20:32:30 +0800 | From | kbuild test robot <> | Subject | arch/x86/include/asm/preempt.h:75:9: sparse: context imbalance in 'vcpu_enter_guest' - unexpected unlock |
| |
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 2868b2513aa732a99ea4a0a6bf10dc93c1f3dac2 commit: bd7e5b0899a429445cc6e3037c13f8b5ae3be903 KVM: x86: remove code for lazy FPU handling date: 3 months ago reproduce: # apt-get install sparse git checkout bd7e5b0899a429445cc6e3037c13f8b5ae3be903 make ARCH=x86_64 allmodconfig make C=1 CF=-D__CHECK_ENDIAN__
sparse warnings: (new ones prefixed by >>)
arch/x86/kvm/x86.c:2063:38: sparse: incorrect type in argument 1 (different address spaces) arch/x86/kvm/x86.c:2063:38: expected void const [noderef] <asn:1>*<noident> arch/x86/kvm/x86.c:2063:38: got unsigned char [usertype] * arch/x86/include/asm/uaccess.h:714:18: sparse: incorrect type in argument 1 (different modifiers) arch/x86/include/asm/uaccess.h:714:18: expected void *<noident> arch/x86/include/asm/uaccess.h:714:18: got void const *from arch/x86/include/asm/uaccess.h:714:18: sparse: incorrect type in argument 1 (different modifiers) arch/x86/include/asm/uaccess.h:714:18: expected void *<noident> arch/x86/include/asm/uaccess.h:714:18: got void const *from arch/x86/include/asm/uaccess.h:714:18: sparse: incorrect type in argument 1 (different modifiers) arch/x86/include/asm/uaccess.h:714:18: expected void *<noident> arch/x86/include/asm/uaccess.h:714:18: got void const *from arch/x86/include/asm/uaccess.h:714:18: sparse: incorrect type in argument 1 (different modifiers) arch/x86/include/asm/uaccess.h:714:18: expected void *<noident> arch/x86/include/asm/uaccess.h:714:18: got void const *from arch/x86/include/asm/uaccess.h:714:18: sparse: incorrect type in argument 1 (different modifiers) arch/x86/include/asm/uaccess.h:714:18: expected void *<noident> arch/x86/include/asm/uaccess.h:714:18: got void const *from arch/x86/include/asm/uaccess.h:714:18: sparse: incorrect type in argument 1 (different modifiers) arch/x86/include/asm/uaccess.h:714:18: expected void *<noident> arch/x86/include/asm/uaccess.h:714:18: got void const *from arch/x86/include/asm/uaccess.h:714:18: sparse: incorrect type in argument 1 (different modifiers) arch/x86/include/asm/uaccess.h:714:18: expected void *<noident> arch/x86/include/asm/uaccess.h:714:18: got void const *from arch/x86/include/asm/uaccess.h:714:18: sparse: incorrect type in argument 1 (different modifiers) arch/x86/include/asm/uaccess.h:714:18: expected void *<noident> arch/x86/include/asm/uaccess.h:714:18: got void const *from arch/x86/include/asm/uaccess.h:714:18: sparse: incorrect type in argument 1 (different modifiers) arch/x86/include/asm/uaccess.h:714:18: expected void *<noident> arch/x86/include/asm/uaccess.h:714:18: got void const *from arch/x86/include/asm/uaccess.h:714:18: sparse: incorrect type in argument 1 (different modifiers) arch/x86/include/asm/uaccess.h:714:18: expected void *<noident> arch/x86/include/asm/uaccess.h:714:18: got void const *from arch/x86/include/asm/uaccess.h:714:18: sparse: incorrect type in argument 1 (different modifiers) arch/x86/include/asm/uaccess.h:714:18: expected void *<noident> arch/x86/include/asm/uaccess.h:714:18: got void const *from arch/x86/include/asm/uaccess.h:714:18: sparse: incorrect type in argument 1 (different modifiers) arch/x86/include/asm/uaccess.h:714:18: expected void *<noident> arch/x86/include/asm/uaccess.h:714:18: got void const *from arch/x86/include/asm/uaccess.h:714:18: sparse: incorrect type in argument 1 (different modifiers) arch/x86/include/asm/uaccess.h:714:18: expected void *<noident> arch/x86/include/asm/uaccess.h:714:18: got void const *from arch/x86/include/asm/uaccess.h:714:18: sparse: incorrect type in argument 1 (different modifiers) arch/x86/include/asm/uaccess.h:714:18: expected void *<noident> arch/x86/include/asm/uaccess.h:714:18: got void const *from arch/x86/include/asm/uaccess.h:714:18: sparse: incorrect type in argument 1 (different modifiers) arch/x86/include/asm/uaccess.h:714:18: expected void *<noident> arch/x86/include/asm/uaccess.h:714:18: got void const *from arch/x86/include/asm/uaccess.h:714:18: sparse: incorrect type in argument 1 (different modifiers) arch/x86/include/asm/uaccess.h:714:18: expected void *<noident> arch/x86/include/asm/uaccess.h:714:18: got void const *from arch/x86/include/asm/uaccess.h:714:18: sparse: incorrect type in argument 1 (different modifiers) arch/x86/include/asm/uaccess.h:714:18: expected void *<noident> arch/x86/include/asm/uaccess.h:714:18: got void const *from ./arch/x86/kvm/trace.h:63:1: sparse: odd constant _Bool cast (ffffffffffffffff becomes 1) ./arch/x86/kvm/trace.h:378:1: sparse: odd constant _Bool cast (ffffffffffffffff becomes 1) ./arch/x86/kvm/trace.h:497:1: sparse: odd constant _Bool cast (ffffffffffffffff becomes 1) ./arch/x86/kvm/trace.h:763:1: sparse: odd constant _Bool cast (ffffffffffffffff becomes 1) ./arch/x86/kvm/trace.h:763:1: sparse: odd constant _Bool cast (ffffffffffffffff becomes 1) ./arch/x86/kvm/trace.h:814:1: sparse: odd constant _Bool cast (ffffffffffffffff becomes 1) ./arch/x86/kvm/trace.h:814:1: sparse: odd constant _Bool cast (ffffffffffffffff becomes 1) ./arch/x86/kvm/trace.h:836:1: sparse: odd constant _Bool cast (ffffffffffffffff becomes 1) ./arch/x86/kvm/trace.h:886:1: sparse: odd constant _Bool cast (ffffffffffffffff becomes 1) ./arch/x86/kvm/trace.h:972:1: sparse: odd constant _Bool cast (ffffffffffffffff becomes 1) ./arch/x86/kvm/trace.h:997:1: sparse: odd constant _Bool cast (ffffffffffffffff becomes 1) ./arch/x86/kvm/trace.h:1102:1: sparse: odd constant _Bool cast (ffffffffffffffff becomes 1) ./arch/x86/kvm/trace.h:1127:1: sparse: odd constant _Bool cast (ffffffffffffffff becomes 1) ./arch/x86/kvm/trace.h:1153:1: sparse: odd constant _Bool cast (ffffffffffffffff becomes 1) ./arch/x86/kvm/trace.h:1322:1: sparse: odd constant _Bool cast (ffffffffffffffff becomes 1) ./arch/x86/kvm/trace.h:1322:1: sparse: odd constant _Bool cast (ffffffffffffffff becomes 1) >> arch/x86/include/asm/preempt.h:75:9: sparse: context imbalance in 'vcpu_enter_guest' - unexpected unlock
vim +/vcpu_enter_guest +75 arch/x86/include/asm/preempt.h
c2daa3be Peter Zijlstra 2013-08-14 59 static __always_inline void clear_preempt_need_resched(void) c2daa3be Peter Zijlstra 2013-08-14 60 { b3ca1c10 Christoph Lameter 2014-04-07 61 raw_cpu_or_4(__preempt_count, PREEMPT_NEED_RESCHED); c2daa3be Peter Zijlstra 2013-08-14 62 } c2daa3be Peter Zijlstra 2013-08-14 63 c2daa3be Peter Zijlstra 2013-08-14 64 static __always_inline bool test_preempt_need_resched(void) c2daa3be Peter Zijlstra 2013-08-14 65 { b3ca1c10 Christoph Lameter 2014-04-07 66 return !(raw_cpu_read_4(__preempt_count) & PREEMPT_NEED_RESCHED); c2daa3be Peter Zijlstra 2013-08-14 67 } c2daa3be Peter Zijlstra 2013-08-14 68 c2daa3be Peter Zijlstra 2013-08-14 69 /* c2daa3be Peter Zijlstra 2013-08-14 70 * The various preempt_count add/sub methods c2daa3be Peter Zijlstra 2013-08-14 71 */ c2daa3be Peter Zijlstra 2013-08-14 72 c2daa3be Peter Zijlstra 2013-08-14 73 static __always_inline void __preempt_count_add(int val) c2daa3be Peter Zijlstra 2013-08-14 74 { b3ca1c10 Christoph Lameter 2014-04-07 @75 raw_cpu_add_4(__preempt_count, val); c2daa3be Peter Zijlstra 2013-08-14 76 } c2daa3be Peter Zijlstra 2013-08-14 77 c2daa3be Peter Zijlstra 2013-08-14 78 static __always_inline void __preempt_count_sub(int val) c2daa3be Peter Zijlstra 2013-08-14 79 { b3ca1c10 Christoph Lameter 2014-04-07 80 raw_cpu_add_4(__preempt_count, -val); c2daa3be Peter Zijlstra 2013-08-14 81 } c2daa3be Peter Zijlstra 2013-08-14 82 ba1f14fb Peter Zijlstra 2013-11-28 83 /*
:::::: The code at line 75 was first introduced by commit :::::: b3ca1c10d7b32fdfdfaf5484eda486323f52d9be percpu: add raw_cpu_ops
:::::: TO: Christoph Lameter <cl@linux.com> :::::: CC: Linus Torvalds <torvalds@linux-foundation.org>
--- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
| |