# git rev-parse -q --verify 958f338e96f874a0d29442396d6adf9c1e17aa2d^{commit} 958f338e96f874a0d29442396d6adf9c1e17aa2d already have revision, skipping fetch # git checkout -q -f -B kisskb 958f338e96f874a0d29442396d6adf9c1e17aa2d # git clean -qxdf # < git log -1 # commit 958f338e96f874a0d29442396d6adf9c1e17aa2d # Merge: 781fca5 07d981a # Author: Linus Torvalds # Date: Tue Aug 14 09:46:06 2018 -0700 # # Merge branch 'l1tf-final' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip # # Merge L1 Terminal Fault fixes from Thomas Gleixner: # "L1TF, aka L1 Terminal Fault, is yet another speculative hardware # engineering trainwreck. It's a hardware vulnerability which allows # unprivileged speculative access to data which is available in the # Level 1 Data Cache when the page table entry controlling the virtual # address, which is used for the access, has the Present bit cleared or # other reserved bits set. # # If an instruction accesses a virtual address for which the relevant # page table entry (PTE) has the Present bit cleared or other reserved # bits set, then speculative execution ignores the invalid PTE and loads # the referenced data if it is present in the Level 1 Data Cache, as if # the page referenced by the address bits in the PTE was still present # and accessible. # # While this is a purely speculative mechanism and the instruction will # raise a page fault when it is retired eventually, the pure act of # loading the data and making it available to other speculative # instructions opens up the opportunity for side channel attacks to # unprivileged malicious code, similar to the Meltdown attack. # # While Meltdown breaks the user space to kernel space protection, L1TF # allows to attack any physical memory address in the system and the # attack works across all protection domains. It allows an attack of SGX # and also works from inside virtual machines because the speculation # bypasses the extended page table (EPT) protection mechanism. # # The assoicated CVEs are: CVE-2018-3615, CVE-2018-3620, CVE-2018-3646 # # The mitigations provided by this pull request include: # # - Host side protection by inverting the upper address bits of a non # present page table entry so the entry points to uncacheable memory. # # - Hypervisor protection by flushing L1 Data Cache on VMENTER. # # - SMT (HyperThreading) control knobs, which allow to 'turn off' SMT # by offlining the sibling CPU threads. The knobs are available on # the kernel command line and at runtime via sysfs # # - Control knobs for the hypervisor mitigation, related to L1D flush # and SMT control. The knobs are available on the kernel command line # and at runtime via sysfs # # - Extensive documentation about L1TF including various degrees of # mitigations. # # Thanks to all people who have contributed to this in various ways - # patches, review, testing, backporting - and the fruitful, sometimes # heated, but at the end constructive discussions. # # There is work in progress to provide other forms of mitigations, which # might be less horrible performance wise for a particular kind of # workloads, but this is not yet ready for consumption due to their # complexity and limitations" # # * 'l1tf-final' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (75 commits) # x86/microcode: Allow late microcode loading with SMT disabled # tools headers: Synchronise x86 cpufeatures.h for L1TF additions # x86/mm/kmmio: Make the tracer robust against L1TF # x86/mm/pat: Make set_memory_np() L1TF safe # x86/speculation/l1tf: Make pmd/pud_mknotpresent() invert # x86/speculation/l1tf: Invert all not present mappings # cpu/hotplug: Fix SMT supported evaluation # KVM: VMX: Tell the nested hypervisor to skip L1D flush on vmentry # x86/speculation: Use ARCH_CAPABILITIES to skip L1D flush on vmentry # x86/speculation: Simplify sysfs report of VMX L1TF vulnerability # Documentation/l1tf: Remove Yonah processors from not vulnerable list # x86/KVM/VMX: Don't set l1tf_flush_l1d from vmx_handle_external_intr() # x86/irq: Let interrupt handlers set kvm_cpu_l1tf_flush_l1d # x86: Don't include linux/irq.h from asm/hardirq.h # x86/KVM/VMX: Introduce per-host-cpu analogue of l1tf_flush_l1d # x86/irq: Demote irq_cpustat_t::__softirq_pending to u16 # x86/KVM/VMX: Move the l1tf_flush_l1d test to vmx_l1d_flush() # x86/KVM/VMX: Replace 'vmx_l1d_flush_always' with 'vmx_l1d_flush_cond' # x86/KVM/VMX: Don't set l1tf_flush_l1d to true from vmx_l1d_flush() # cpu/hotplug: detect SMT disabled by BIOS # ... # < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-gcc --version # < git log --format=%s --max-count=1 958f338e96f874a0d29442396d6adf9c1e17aa2d # < make -s -j 120 ARCH=um O=/kisskb/build/linus_um-allyesconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 allyesconfig # Added to kconfig CONFIG_STANDALONE=y # Added to kconfig CONFIG_KCOV=n # Added to kconfig CONFIG_GCC_PLUGINS=n # Added to kconfig CONFIG_GCC_PLUGIN_CYC_COMPLEXITY=n # Added to kconfig CONFIG_GCC_PLUGIN_SANCOV=n # Added to kconfig CONFIG_GCC_PLUGIN_LATENT_ENTROPY=n # Added to kconfig CONFIG_GCC_PLUGIN_STRUCTLEAK=n # Added to kconfig CONFIG_GCC_PLUGIN_RANDSTRUCT=n # Added to kconfig CONFIG_UML_NET=n # Added to kconfig CONFIG_UML_NET_ETHERTAP=n # Added to kconfig CONFIG_UML_NET_TUNTAP=n # Added to kconfig CONFIG_UML_NET_SLIP=n # Added to kconfig CONFIG_UML_NET_DAEMON=n # Added to kconfig CONFIG_UML_NET_VDE=n # Added to kconfig CONFIG_UML_NET_MCAST=n # Added to kconfig CONFIG_UML_NET_PCAP=n # Added to kconfig CONFIG_UML_NET_SLIRP=n # Added to kconfig CONFIG_GCOV_KERNEL=n # make -s -j 120 ARCH=um O=/kisskb/build/linus_um-allyesconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 olddefconfig # make -s -j 120 ARCH=um O=/kisskb/build/linus_um-allyesconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 /kisskb/src/arch/um/os-Linux/skas/process.c: In function 'start_idle_thread': /kisskb/src/arch/um/os-Linux/skas/process.c:613:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ In file included from /kisskb/src/include/asm-generic/percpu.h:7:0, from ./arch/um/include/generated/asm/percpu.h:1, from /kisskb/src/include/linux/percpu.h:13, from /kisskb/src/include/linux/percpu-rwsem.h:7, from /kisskb/src/include/linux/fs.h:34, from /kisskb/src/include/linux/proc_fs.h:9, from /kisskb/src/kernel/cpu.c:6: /kisskb/src/kernel/cpu.c: In function 'boot_cpu_hotplug_init': /kisskb/src/kernel/cpu.c:2275:28: error: 'struct cpuhp_cpu_state' has no member named 'booted_once' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/include/linux/percpu-defs.h:221:47: note: in definition of macro '__verify_pcpu_ptr' const void __percpu *__vpp_verify = (typeof((ptr) + 0))NULL; \ ^ /kisskb/src/include/linux/percpu-defs.h:510:34: note: in expansion of macro '__pcpu_size_call' #define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, pcp, val) ^ /kisskb/src/kernel/cpu.c:2275:2: note: in expansion of macro 'this_cpu_write' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/kernel/cpu.c:2275:28: error: 'struct cpuhp_cpu_state' has no member named 'booted_once' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/include/linux/percpu-defs.h:378:16: note: in definition of macro '__pcpu_size_call' switch(sizeof(variable)) { \ ^ /kisskb/src/kernel/cpu.c:2275:2: note: in expansion of macro 'this_cpu_write' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/kernel/cpu.c:2275:28: error: 'struct cpuhp_cpu_state' has no member named 'booted_once' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/include/linux/percpu-defs.h:221:47: note: in definition of macro '__verify_pcpu_ptr' const void __percpu *__vpp_verify = (typeof((ptr) + 0))NULL; \ ^ /kisskb/src/include/linux/percpu-defs.h:265:47: note: in expansion of macro 'VERIFY_PERCPU_PTR' #define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); VERIFY_PERCPU_PTR(ptr); }) ^ /kisskb/src/include/linux/percpu-defs.h:266:26: note: in expansion of macro 'per_cpu_ptr' #define raw_cpu_ptr(ptr) per_cpu_ptr(ptr, 0) ^ /kisskb/src/include/asm-generic/percpu.h:76:3: note: in expansion of macro 'raw_cpu_ptr' *raw_cpu_ptr(&(pcp)) op val; \ ^ /kisskb/src/include/asm-generic/percpu.h:152:2: note: in expansion of macro 'raw_cpu_generic_to_op' raw_cpu_generic_to_op(pcp, val, op); \ ^ /kisskb/src/include/asm-generic/percpu.h:337:36: note: in expansion of macro 'this_cpu_generic_to_op' #define this_cpu_write_1(pcp, val) this_cpu_generic_to_op(pcp, val, =) ^ /kisskb/src/include/linux/percpu-defs.h:379:11: note: in expansion of macro 'this_cpu_write_1' case 1: stem##1(variable, __VA_ARGS__);break; \ ^ /kisskb/src/include/linux/percpu-defs.h:510:34: note: in expansion of macro '__pcpu_size_call' #define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, pcp, val) ^ /kisskb/src/kernel/cpu.c:2275:2: note: in expansion of macro 'this_cpu_write' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/kernel/cpu.c:2275:28: error: 'struct cpuhp_cpu_state' has no member named 'booted_once' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/include/linux/percpu-defs.h:262:12: note: in definition of macro 'VERIFY_PERCPU_PTR' (typeof(*(__p)) __kernel __force *)(__p); \ ^ /kisskb/src/include/linux/percpu-defs.h:266:26: note: in expansion of macro 'per_cpu_ptr' #define raw_cpu_ptr(ptr) per_cpu_ptr(ptr, 0) ^ /kisskb/src/include/asm-generic/percpu.h:76:3: note: in expansion of macro 'raw_cpu_ptr' *raw_cpu_ptr(&(pcp)) op val; \ ^ /kisskb/src/include/asm-generic/percpu.h:152:2: note: in expansion of macro 'raw_cpu_generic_to_op' raw_cpu_generic_to_op(pcp, val, op); \ ^ /kisskb/src/include/asm-generic/percpu.h:337:36: note: in expansion of macro 'this_cpu_generic_to_op' #define this_cpu_write_1(pcp, val) this_cpu_generic_to_op(pcp, val, =) ^ /kisskb/src/include/linux/percpu-defs.h:379:11: note: in expansion of macro 'this_cpu_write_1' case 1: stem##1(variable, __VA_ARGS__);break; \ ^ /kisskb/src/include/linux/percpu-defs.h:510:34: note: in expansion of macro '__pcpu_size_call' #define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, pcp, val) ^ /kisskb/src/kernel/cpu.c:2275:2: note: in expansion of macro 'this_cpu_write' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/kernel/cpu.c:2275:28: error: 'struct cpuhp_cpu_state' has no member named 'booted_once' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/include/linux/percpu-defs.h:262:38: note: in definition of macro 'VERIFY_PERCPU_PTR' (typeof(*(__p)) __kernel __force *)(__p); \ ^ /kisskb/src/include/linux/percpu-defs.h:266:26: note: in expansion of macro 'per_cpu_ptr' #define raw_cpu_ptr(ptr) per_cpu_ptr(ptr, 0) ^ /kisskb/src/include/asm-generic/percpu.h:76:3: note: in expansion of macro 'raw_cpu_ptr' *raw_cpu_ptr(&(pcp)) op val; \ ^ /kisskb/src/include/asm-generic/percpu.h:152:2: note: in expansion of macro 'raw_cpu_generic_to_op' raw_cpu_generic_to_op(pcp, val, op); \ ^ /kisskb/src/include/asm-generic/percpu.h:337:36: note: in expansion of macro 'this_cpu_generic_to_op' #define this_cpu_write_1(pcp, val) this_cpu_generic_to_op(pcp, val, =) ^ /kisskb/src/include/linux/percpu-defs.h:379:11: note: in expansion of macro 'this_cpu_write_1' case 1: stem##1(variable, __VA_ARGS__);break; \ ^ /kisskb/src/include/linux/percpu-defs.h:510:34: note: in expansion of macro '__pcpu_size_call' #define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, pcp, val) ^ /kisskb/src/kernel/cpu.c:2275:2: note: in expansion of macro 'this_cpu_write' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/kernel/cpu.c:2275:28: error: 'struct cpuhp_cpu_state' has no member named 'booted_once' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/include/linux/percpu-defs.h:221:47: note: in definition of macro '__verify_pcpu_ptr' const void __percpu *__vpp_verify = (typeof((ptr) + 0))NULL; \ ^ /kisskb/src/include/linux/percpu-defs.h:265:47: note: in expansion of macro 'VERIFY_PERCPU_PTR' #define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); VERIFY_PERCPU_PTR(ptr); }) ^ /kisskb/src/include/linux/percpu-defs.h:266:26: note: in expansion of macro 'per_cpu_ptr' #define raw_cpu_ptr(ptr) per_cpu_ptr(ptr, 0) ^ /kisskb/src/include/asm-generic/percpu.h:76:3: note: in expansion of macro 'raw_cpu_ptr' *raw_cpu_ptr(&(pcp)) op val; \ ^ /kisskb/src/include/asm-generic/percpu.h:152:2: note: in expansion of macro 'raw_cpu_generic_to_op' raw_cpu_generic_to_op(pcp, val, op); \ ^ /kisskb/src/include/asm-generic/percpu.h:340:36: note: in expansion of macro 'this_cpu_generic_to_op' #define this_cpu_write_2(pcp, val) this_cpu_generic_to_op(pcp, val, =) ^ /kisskb/src/include/linux/percpu-defs.h:380:11: note: in expansion of macro 'this_cpu_write_2' case 2: stem##2(variable, __VA_ARGS__);break; \ ^ /kisskb/src/include/linux/percpu-defs.h:510:34: note: in expansion of macro '__pcpu_size_call' #define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, pcp, val) ^ /kisskb/src/kernel/cpu.c:2275:2: note: in expansion of macro 'this_cpu_write' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/kernel/cpu.c:2275:28: error: 'struct cpuhp_cpu_state' has no member named 'booted_once' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/include/linux/percpu-defs.h:262:12: note: in definition of macro 'VERIFY_PERCPU_PTR' (typeof(*(__p)) __kernel __force *)(__p); \ ^ /kisskb/src/include/linux/percpu-defs.h:266:26: note: in expansion of macro 'per_cpu_ptr' #define raw_cpu_ptr(ptr) per_cpu_ptr(ptr, 0) ^ /kisskb/src/include/asm-generic/percpu.h:76:3: note: in expansion of macro 'raw_cpu_ptr' *raw_cpu_ptr(&(pcp)) op val; \ ^ /kisskb/src/include/asm-generic/percpu.h:152:2: note: in expansion of macro 'raw_cpu_generic_to_op' raw_cpu_generic_to_op(pcp, val, op); \ ^ /kisskb/src/include/asm-generic/percpu.h:340:36: note: in expansion of macro 'this_cpu_generic_to_op' #define this_cpu_write_2(pcp, val) this_cpu_generic_to_op(pcp, val, =) ^ /kisskb/src/include/linux/percpu-defs.h:380:11: note: in expansion of macro 'this_cpu_write_2' case 2: stem##2(variable, __VA_ARGS__);break; \ ^ /kisskb/src/include/linux/percpu-defs.h:510:34: note: in expansion of macro '__pcpu_size_call' #define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, pcp, val) ^ /kisskb/src/kernel/cpu.c:2275:2: note: in expansion of macro 'this_cpu_write' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/kernel/cpu.c:2275:28: error: 'struct cpuhp_cpu_state' has no member named 'booted_once' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/include/linux/percpu-defs.h:262:38: note: in definition of macro 'VERIFY_PERCPU_PTR' (typeof(*(__p)) __kernel __force *)(__p); \ ^ /kisskb/src/include/linux/percpu-defs.h:266:26: note: in expansion of macro 'per_cpu_ptr' #define raw_cpu_ptr(ptr) per_cpu_ptr(ptr, 0) ^ /kisskb/src/include/asm-generic/percpu.h:76:3: note: in expansion of macro 'raw_cpu_ptr' *raw_cpu_ptr(&(pcp)) op val; \ ^ /kisskb/src/include/asm-generic/percpu.h:152:2: note: in expansion of macro 'raw_cpu_generic_to_op' raw_cpu_generic_to_op(pcp, val, op); \ ^ /kisskb/src/include/asm-generic/percpu.h:340:36: note: in expansion of macro 'this_cpu_generic_to_op' #define this_cpu_write_2(pcp, val) this_cpu_generic_to_op(pcp, val, =) ^ /kisskb/src/include/linux/percpu-defs.h:380:11: note: in expansion of macro 'this_cpu_write_2' case 2: stem##2(variable, __VA_ARGS__);break; \ ^ /kisskb/src/include/linux/percpu-defs.h:510:34: note: in expansion of macro '__pcpu_size_call' #define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, pcp, val) ^ /kisskb/src/kernel/cpu.c:2275:2: note: in expansion of macro 'this_cpu_write' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/kernel/cpu.c:2275:28: error: 'struct cpuhp_cpu_state' has no member named 'booted_once' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/include/linux/percpu-defs.h:221:47: note: in definition of macro '__verify_pcpu_ptr' const void __percpu *__vpp_verify = (typeof((ptr) + 0))NULL; \ ^ /kisskb/src/include/linux/percpu-defs.h:265:47: note: in expansion of macro 'VERIFY_PERCPU_PTR' #define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); VERIFY_PERCPU_PTR(ptr); }) ^ /kisskb/src/include/linux/percpu-defs.h:266:26: note: in expansion of macro 'per_cpu_ptr' #define raw_cpu_ptr(ptr) per_cpu_ptr(ptr, 0) ^ /kisskb/src/include/asm-generic/percpu.h:76:3: note: in expansion of macro 'raw_cpu_ptr' *raw_cpu_ptr(&(pcp)) op val; \ ^ /kisskb/src/include/asm-generic/percpu.h:152:2: note: in expansion of macro 'raw_cpu_generic_to_op' raw_cpu_generic_to_op(pcp, val, op); \ ^ /kisskb/src/include/asm-generic/percpu.h:343:36: note: in expansion of macro 'this_cpu_generic_to_op' #define this_cpu_write_4(pcp, val) this_cpu_generic_to_op(pcp, val, =) ^ /kisskb/src/include/linux/percpu-defs.h:381:11: note: in expansion of macro 'this_cpu_write_4' case 4: stem##4(variable, __VA_ARGS__);break; \ ^ /kisskb/src/include/linux/percpu-defs.h:510:34: note: in expansion of macro '__pcpu_size_call' #define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, pcp, val) ^ /kisskb/src/kernel/cpu.c:2275:2: note: in expansion of macro 'this_cpu_write' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/kernel/cpu.c:2275:28: error: 'struct cpuhp_cpu_state' has no member named 'booted_once' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/include/linux/percpu-defs.h:262:12: note: in definition of macro 'VERIFY_PERCPU_PTR' (typeof(*(__p)) __kernel __force *)(__p); \ ^ /kisskb/src/include/linux/percpu-defs.h:266:26: note: in expansion of macro 'per_cpu_ptr' #define raw_cpu_ptr(ptr) per_cpu_ptr(ptr, 0) ^ /kisskb/src/include/asm-generic/percpu.h:76:3: note: in expansion of macro 'raw_cpu_ptr' *raw_cpu_ptr(&(pcp)) op val; \ ^ /kisskb/src/include/asm-generic/percpu.h:152:2: note: in expansion of macro 'raw_cpu_generic_to_op' raw_cpu_generic_to_op(pcp, val, op); \ ^ /kisskb/src/include/asm-generic/percpu.h:343:36: note: in expansion of macro 'this_cpu_generic_to_op' #define this_cpu_write_4(pcp, val) this_cpu_generic_to_op(pcp, val, =) ^ /kisskb/src/include/linux/percpu-defs.h:381:11: note: in expansion of macro 'this_cpu_write_4' case 4: stem##4(variable, __VA_ARGS__);break; \ ^ /kisskb/src/include/linux/percpu-defs.h:510:34: note: in expansion of macro '__pcpu_size_call' #define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, pcp, val) ^ /kisskb/src/kernel/cpu.c:2275:2: note: in expansion of macro 'this_cpu_write' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/kernel/cpu.c:2275:28: error: 'struct cpuhp_cpu_state' has no member named 'booted_once' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/include/linux/percpu-defs.h:262:38: note: in definition of macro 'VERIFY_PERCPU_PTR' (typeof(*(__p)) __kernel __force *)(__p); \ ^ /kisskb/src/include/linux/percpu-defs.h:266:26: note: in expansion of macro 'per_cpu_ptr' #define raw_cpu_ptr(ptr) per_cpu_ptr(ptr, 0) ^ /kisskb/src/include/asm-generic/percpu.h:76:3: note: in expansion of macro 'raw_cpu_ptr' *raw_cpu_ptr(&(pcp)) op val; \ ^ /kisskb/src/include/asm-generic/percpu.h:152:2: note: in expansion of macro 'raw_cpu_generic_to_op' raw_cpu_generic_to_op(pcp, val, op); \ ^ /kisskb/src/include/asm-generic/percpu.h:343:36: note: in expansion of macro 'this_cpu_generic_to_op' #define this_cpu_write_4(pcp, val) this_cpu_generic_to_op(pcp, val, =) ^ /kisskb/src/include/linux/percpu-defs.h:381:11: note: in expansion of macro 'this_cpu_write_4' case 4: stem##4(variable, __VA_ARGS__);break; \ ^ /kisskb/src/include/linux/percpu-defs.h:510:34: note: in expansion of macro '__pcpu_size_call' #define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, pcp, val) ^ /kisskb/src/kernel/cpu.c:2275:2: note: in expansion of macro 'this_cpu_write' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/kernel/cpu.c:2275:28: error: 'struct cpuhp_cpu_state' has no member named 'booted_once' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/include/linux/percpu-defs.h:221:47: note: in definition of macro '__verify_pcpu_ptr' const void __percpu *__vpp_verify = (typeof((ptr) + 0))NULL; \ ^ /kisskb/src/include/linux/percpu-defs.h:265:47: note: in expansion of macro 'VERIFY_PERCPU_PTR' #define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); VERIFY_PERCPU_PTR(ptr); }) ^ /kisskb/src/include/linux/percpu-defs.h:266:26: note: in expansion of macro 'per_cpu_ptr' #define raw_cpu_ptr(ptr) per_cpu_ptr(ptr, 0) ^ /kisskb/src/include/asm-generic/percpu.h:76:3: note: in expansion of macro 'raw_cpu_ptr' *raw_cpu_ptr(&(pcp)) op val; \ ^ /kisskb/src/include/asm-generic/percpu.h:152:2: note: in expansion of macro 'raw_cpu_generic_to_op' raw_cpu_generic_to_op(pcp, val, op); \ ^ /kisskb/src/include/asm-generic/percpu.h:346:36: note: in expansion of macro 'this_cpu_generic_to_op' #define this_cpu_write_8(pcp, val) this_cpu_generic_to_op(pcp, val, =) ^ /kisskb/src/include/linux/percpu-defs.h:382:11: note: in expansion of macro 'this_cpu_write_8' case 8: stem##8(variable, __VA_ARGS__);break; \ ^ /kisskb/src/include/linux/percpu-defs.h:510:34: note: in expansion of macro '__pcpu_size_call' #define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, pcp, val) ^ /kisskb/src/kernel/cpu.c:2275:2: note: in expansion of macro 'this_cpu_write' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/kernel/cpu.c:2275:28: error: 'struct cpuhp_cpu_state' has no member named 'booted_once' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/include/linux/percpu-defs.h:262:12: note: in definition of macro 'VERIFY_PERCPU_PTR' (typeof(*(__p)) __kernel __force *)(__p); \ ^ /kisskb/src/include/linux/percpu-defs.h:266:26: note: in expansion of macro 'per_cpu_ptr' #define raw_cpu_ptr(ptr) per_cpu_ptr(ptr, 0) ^ /kisskb/src/include/asm-generic/percpu.h:76:3: note: in expansion of macro 'raw_cpu_ptr' *raw_cpu_ptr(&(pcp)) op val; \ ^ /kisskb/src/include/asm-generic/percpu.h:152:2: note: in expansion of macro 'raw_cpu_generic_to_op' raw_cpu_generic_to_op(pcp, val, op); \ ^ /kisskb/src/include/asm-generic/percpu.h:346:36: note: in expansion of macro 'this_cpu_generic_to_op' #define this_cpu_write_8(pcp, val) this_cpu_generic_to_op(pcp, val, =) ^ /kisskb/src/include/linux/percpu-defs.h:382:11: note: in expansion of macro 'this_cpu_write_8' case 8: stem##8(variable, __VA_ARGS__);break; \ ^ /kisskb/src/include/linux/percpu-defs.h:510:34: note: in expansion of macro '__pcpu_size_call' #define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, pcp, val) ^ /kisskb/src/kernel/cpu.c:2275:2: note: in expansion of macro 'this_cpu_write' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/kernel/cpu.c:2275:28: error: 'struct cpuhp_cpu_state' has no member named 'booted_once' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/include/linux/percpu-defs.h:262:38: note: in definition of macro 'VERIFY_PERCPU_PTR' (typeof(*(__p)) __kernel __force *)(__p); \ ^ /kisskb/src/include/linux/percpu-defs.h:266:26: note: in expansion of macro 'per_cpu_ptr' #define raw_cpu_ptr(ptr) per_cpu_ptr(ptr, 0) ^ /kisskb/src/include/asm-generic/percpu.h:76:3: note: in expansion of macro 'raw_cpu_ptr' *raw_cpu_ptr(&(pcp)) op val; \ ^ /kisskb/src/include/asm-generic/percpu.h:152:2: note: in expansion of macro 'raw_cpu_generic_to_op' raw_cpu_generic_to_op(pcp, val, op); \ ^ /kisskb/src/include/asm-generic/percpu.h:346:36: note: in expansion of macro 'this_cpu_generic_to_op' #define this_cpu_write_8(pcp, val) this_cpu_generic_to_op(pcp, val, =) ^ /kisskb/src/include/linux/percpu-defs.h:382:11: note: in expansion of macro 'this_cpu_write_8' case 8: stem##8(variable, __VA_ARGS__);break; \ ^ /kisskb/src/include/linux/percpu-defs.h:510:34: note: in expansion of macro '__pcpu_size_call' #define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, pcp, val) ^ /kisskb/src/kernel/cpu.c:2275:2: note: in expansion of macro 'this_cpu_write' this_cpu_write(cpuhp_state.booted_once, true); ^ /kisskb/src/scripts/Makefile.build:317: recipe for target 'kernel/cpu.o' failed make[2]: *** [kernel/cpu.o] Error 1 make[2]: *** Waiting for unfinished jobs.... /kisskb/src/security/apparmor/policy_unpack.c: In function 'unpack_trans_table': /kisskb/src/security/apparmor/policy_unpack.c:515:9: warning: 'pos' may be used uninitialized in this function [-Wmaybe-uninitialized] str[pos] = ':'; ^ /kisskb/src/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount': /kisskb/src/kernel/cgroup/cgroup-v1.c:1256:3: warning: 'root' may be used uninitialized in this function [-Wmaybe-uninitialized] percpu_ref_reinit(&root->cgrp.self.refcnt); ^ /kisskb/src/Makefile:1029: recipe for target 'kernel' failed make[1]: *** [kernel] Error 2 make[1]: *** Waiting for unfinished jobs.... /kisskb/src/lib/lz4/lz4hc_compress.c: In function 'LZ4HC_compress_generic': /kisskb/src/lib/lz4/lz4hc_compress.c:579:1: warning: the frame size of 2144 bytes is larger than 2048 bytes [-Wframe-larger-than=] } ^ Makefile:146: recipe for target 'sub-make' failed make: *** [sub-make] Error 2 Command 'make -s -j 120 ARCH=um O=/kisskb/build/linus_um-allyesconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 ' returned non-zero exit status 2 # rm -rf /kisskb/build/linus_um-allyesconfig_um-x86_64 # Build took: 0:01:31.836756