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2021-01-30powerpc/pcidn: Make IOV setup routines staticCédric Le Goater1-8/+7
These are only used locally. It fixes these W=1 compile errors : ../arch/powerpc/platforms/pseries/pci.c:58:5: error: no previous prototype for ‘pseries_send_map_pe’ [-Werror=missing-prototypes] 58 | int pseries_send_map_pe(struct pci_dev *pdev, | ^~~~~~~~~~~~~~~~~~~ ../arch/powerpc/platforms/pseries/pci.c:91:6: error: no previous prototype for ‘pseries_set_pe_num’ [-Werror=missing-prototypes] 91 | void pseries_set_pe_num(struct pci_dev *pdev, u16 vf_index, __be16 pe_num) | ^~~~~~~~~~~~~~~~~~ ../arch/powerpc/platforms/pseries/pci.c:105:5: error: no previous prototype for ‘pseries_associate_pes’ [-Werror=missing-prototypes] 105 | int pseries_associate_pes(struct pci_dev *pdev, u16 num_vfs) | ^~~~~~~~~~~~~~~~~~~~~ ../arch/powerpc/platforms/pseries/pci.c:149:5: error: no previous prototype for ‘pseries_pci_sriov_enable’ [-Werror=missing-prototypes] 149 | int pseries_pci_sriov_enable(struct pci_dev *pdev, u16 num_vfs) | ^~~~~~~~~~~~~~~~~~~~~~~~ ../arch/powerpc/platforms/pseries/pci.c:192:5: error: no previous prototype for ‘pseries_pcibios_sriov_enable’ [-Werror=missing-prototypes] 192 | int pseries_pcibios_sriov_enable(struct pci_dev *pdev, u16 num_vfs) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/powerpc/platforms/pseries/pci.c:199:5: error: no previous prototype for ‘pseries_pcibios_sriov_disable’ [-Werror=missing-prototypes] 199 | int pseries_pcibios_sriov_disable(struct pci_dev *pdev) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Cédric Le Goater <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-01-30powerpc/pseries: Make IOV setup routines staticCédric Le Goater1-4/+4
These are only used locally. It fixes these W=1 compile errors : ../arch/powerpc/platforms/pseries/setup.c:610:17: error: no previous prototype for ‘pseries_get_iov_fw_value’ [-Werror=missing-prototypes] 610 | resource_size_t pseries_get_iov_fw_value(struct pci_dev *dev, int resno, | ^~~~~~~~~~~~~~~~~~~~~~~~ ../arch/powerpc/platforms/pseries/setup.c:646:6: error: no previous prototype for ‘of_pci_set_vf_bar_size’ [-Werror=missing-prototypes] 646 | void of_pci_set_vf_bar_size(struct pci_dev *dev, const int *indexes) | ^~~~~~~~~~~~~~~~~~~~~~ ../arch/powerpc/platforms/pseries/setup.c:668:6: error: no previous prototype for ‘of_pci_parse_iov_addrs’ [-Werror=missing-prototypes] 668 | void of_pci_parse_iov_addrs(struct pci_dev *dev, const int *indexes) | ^~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Cédric Le Goater <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-01-30KVM: PPC: Book3S HV: Declare some prototypesCédric Le Goater1-0/+7
This fixes these W=1 compile errors: ../arch/powerpc/kvm/book3s_hv_builtin.c:425:6: error: no previous prototype for ‘kvmppc_read_intr’ [-Werror=missing-prototypes] 425 | long kvmppc_read_intr(void) | ^~~~~~~~~~~~~~~~ ../arch/powerpc/kvm/book3s_hv_builtin.c:652:6: error: no previous prototype for ‘kvmppc_bad_interrupt’ [-Werror=missing-prototypes] 652 | void kvmppc_bad_interrupt(struct pt_regs *regs) | ^~~~~~~~~~~~~~~~~~~~ ../arch/powerpc/kvm/book3s_hv_builtin.c:695:6: error: no previous prototype for ‘kvmhv_p9_set_lpcr’ [-Werror=missing-prototypes] 695 | void kvmhv_p9_set_lpcr(struct kvm_split_mode *sip) | ^~~~~~~~~~~~~~~~~ ../arch/powerpc/kvm/book3s_hv_builtin.c:740:6: error: no previous prototype for ‘kvmhv_p9_restore_lpcr’ [-Werror=missing-prototypes] 740 | void kvmhv_p9_restore_lpcr(struct kvm_split_mode *sip) | ^~~~~~~~~~~~~~~~~~~~~ ../arch/powerpc/kvm/book3s_hv_builtin.c:768:6: error: no previous prototype for ‘kvmppc_set_msr_hv’ [-Werror=missing-prototypes] 768 | void kvmppc_set_msr_hv(struct kvm_vcpu *vcpu, u64 msr) | ^~~~~~~~~~~~~~~~~ ../arch/powerpc/kvm/book3s_hv_builtin.c:817:6: error: no previous prototype for ‘kvmppc_inject_interrupt_hv’ [-Werror=missing-prototypes] 817 | void kvmppc_inject_interrupt_hv(struct kvm_vcpu *vcpu, int vec, u64 srr1_flags) Signed-off-by: Cédric Le Goater <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-01-30KVM: PPC: Book3S HV: Include prototypesCédric Le Goater1-0/+1
It fixes these W=1 compile errors : CC [M] arch/powerpc/kvm/book3s_64_mmu_hv.o ../arch/powerpc/kvm/book3s_64_mmu_hv.c:879:5: error: no previous prototype for ‘kvm_unmap_hva_range_hv’ [-Werror=missing-prototypes] 879 | int kvm_unmap_hva_range_hv(struct kvm *kvm, unsigned long start, unsigned long end) | ^~~~~~~~~~~~~~~~~~~~~~ ../arch/powerpc/kvm/book3s_64_mmu_hv.c:888:6: error: no previous prototype for ‘kvmppc_core_flush_memslot_hv’ [-Werror=missing-prototypes] 888 | void kvmppc_core_flush_memslot_hv(struct kvm *kvm, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/powerpc/kvm/book3s_64_mmu_hv.c:970:5: error: no previous prototype for ‘kvm_age_hva_hv’ [-Werror=missing-prototypes] 970 | int kvm_age_hva_hv(struct kvm *kvm, unsigned long start, unsigned long end) | ^~~~~~~~~~~~~~ ../arch/powerpc/kvm/book3s_64_mmu_hv.c:1011:5: error: no previous prototype for ‘kvm_test_age_hva_hv’ [-Werror=missing-prototypes] 1011 | int kvm_test_age_hva_hv(struct kvm *kvm, unsigned long hva) | ^~~~~~~~~~~~~~~~~~~ ../arch/powerpc/kvm/book3s_64_mmu_hv.c:1019:6: error: no previous prototype for ‘kvm_set_spte_hva_hv’ [-Werror=missing-prototypes] 1019 | void kvm_set_spte_hva_hv(struct kvm *kvm, unsigned long hva, pte_t pte) | ^~~~~~~~~~~~~~~~~~~ Signed-off-by: Cédric Le Goater <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-01-30KVM: PPC: Make the VMX instruction emulation routines staticCédric Le Goater1-4/+4
These are only used locally. It fixes these W=1 compile errors : ../arch/powerpc/kvm/powerpc.c:1521:5: error: no previous prototype for ‘kvmppc_get_vmx_dword’ [-Werror=missing-prototypes] 1521 | int kvmppc_get_vmx_dword(struct kvm_vcpu *vcpu, int index, u64 *val) | ^~~~~~~~~~~~~~~~~~~~ ../arch/powerpc/kvm/powerpc.c:1539:5: error: no previous prototype for ‘kvmppc_get_vmx_word’ [-Werror=missing-prototypes] 1539 | int kvmppc_get_vmx_word(struct kvm_vcpu *vcpu, int index, u64 *val) | ^~~~~~~~~~~~~~~~~~~ ../arch/powerpc/kvm/powerpc.c:1557:5: error: no previous prototype for ‘kvmppc_get_vmx_hword’ [-Werror=missing-prototypes] 1557 | int kvmppc_get_vmx_hword(struct kvm_vcpu *vcpu, int index, u64 *val) | ^~~~~~~~~~~~~~~~~~~~ ../arch/powerpc/kvm/powerpc.c:1575:5: error: no previous prototype for ‘kvmppc_get_vmx_byte’ [-Werror=missing-prototypes] 1575 | int kvmppc_get_vmx_byte(struct kvm_vcpu *vcpu, int index, u64 *val) | ^~~~~~~~~~~~~~~~~~~ Fixes: acc9eb9305fe ("KVM: PPC: Reimplement LOAD_VMX/STORE_VMX instruction mmio emulation with analyse_instr() input") Signed-off-by: Cédric Le Goater <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-01-30powerpc/watchdog: Declare soft_nmi_interrupt() prototypeCédric Le Goater2-0/+2
soft_nmi_interrupt() usage requires PPC_WATCHDOG to be configured. Check the CONFIG definition to declare the prototype. It fixes this W=1 compile error : ../arch/powerpc/kernel/watchdog.c:250:6: error: no previous prototype for ‘soft_nmi_interrupt’ [-Werror=missing-prototypes] 250 | void soft_nmi_interrupt(struct pt_regs *regs) | ^~~~~~~~~~~~~~~~~~ Signed-off-by: Cédric Le Goater <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-01-30powerpc/mm: Declare arch_report_meminfo() prototype.Cédric Le Goater1-0/+3
It fixes this W=1 compile error : ../arch/powerpc/mm/book3s64/pgtable.c:411:6: error: no previous prototype for ‘arch_report_meminfo’ [-Werror=missing-prototypes] 411 | void arch_report_meminfo(struct seq_file *m) | ^~~~~~~~~~~~~~~~~~~ Signed-off-by: Cédric Le Goater <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-01-30powerpc/mm/hugetlb: Make pseries_alloc_bootmem_huge_page() staticCédric Le Goater1-1/+1
pseries_alloc_bootmem_huge_page() is only used locally in alloc_bootmem_huge_page() and does not need to be external. It fixes this W=1 compile error : ../arch/powerpc/mm/hugetlbpage.c:220:12: error: no previous prototype for ‘pseries_alloc_bootmem_huge_page’ [-Werror=missing-prototypes] 220 | int __init pseries_alloc_bootmem_huge_page(struct hstate *hstate) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Cédric Le Goater <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-01-30powerpc/mm: Declare preload_new_slb_context() prototypeCédric Le Goater1-0/+1
It fixes this W=1 compile error : ../arch/powerpc/mm/book3s64/slb.c:380:6: error: no previous prototype for ‘preload_new_slb_context’ [-Werror=missing-prototypes] 380 | void preload_new_slb_context(unsigned long start, unsigned long sp) | ^~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Cédric Le Goater <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-01-30powerpc/mm: Move hpte_insert_repeating() prototypeCédric Le Goater2-4/+2
It fixes this W=1 compile error : ../arch/powerpc/mm/book3s64/hash_utils.c:1867:6: error: no previous prototype for ‘hpte_insert_repeating’ [-Werror=missing-prototypes] 1867 | long hpte_insert_repeating(unsigned long hash, unsigned long vpn, | ^~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Cédric Le Goater <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-01-30powerpc/mm: Declare some prototypesCédric Le Goater1-0/+2
It fixes this W=1 compile error : ../arch/powerpc/mm/book3s64/hash_utils.c:1515:5: error: no previous prototype for ‘__hash_page’ [-Werror=missing-prototypes] 1515 | int __hash_page(unsigned long trap, unsigned long ea, unsigned long dsisr, | ^~~~~~~~~~~ ../arch/powerpc/mm/book3s64/hash_utils.c:1850:6: error: no previous prototype for ‘low_hash_fault’ [-Werror=missing-prototypes] 1850 | void low_hash_fault(struct pt_regs *regs, unsigned long address, int rc) | ^~~~~~~~~~~~~~ Signed-off-by: Cédric Le Goater <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-01-30powerpc/optprobes: Make patch_imm64_load_insns() staticCédric Le Goater1-1/+1
patch_imm64_load_insns() is only used locally in arch_prepare_optimized_kprobe() and does not need to be external. It fixes this W=1 compile error : ../arch/powerpc/kernel/optprobes.c:149:6: error: no previous prototype for ‘patch_imm64_load_insns’ [-Werror=missing-prototypes] 149 | void patch_imm64_load_insns(unsigned int val, kprobe_opcode_t *addr) Signed-off-by: Cédric Le Goater <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-01-30powerpc/optprobes: Remove unused routine patch_imm32_load_insns()Cédric Le Goater1-19/+0
Commit 650b55b707fd ("powerpc: Add prefixed instructions to instruction data type") removed the use of patch_imm32_load_insns(). Clean it up to fix this W=1 compile error : ../arch/powerpc/kernel/optprobes.c:149:6: error: no previous prototype for ‘patch_imm32_load_insns’ [-Werror=missing-prototypes] 149 | void patch_imm32_load_insns(unsigned int val, kprobe_opcode_t *addr) Fixes: 650b55b707fd ("powerpc: Add prefixed instructions to instruction data type") Signed-off-by: Cédric Le Goater <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-01-30powerpc/smp: Make debugger_ipi_callback() staticCédric Le Goater1-1/+1
debugger_ipi_callback() is a local routine used as a NMI IPI handler and does not need to be external. It fixes this W=1 compile error : ../arch/powerpc/kernel/smp.c:579:6: error: no previous prototype for ‘debugger_ipi_callback’ [-Werror=missing-prototypes] 579 | void debugger_ipi_callback(struct pt_regs *regs) | ^~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Cédric Le Goater <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-01-30powerpc/smp: Include tick_broadcast() prototypeCédric Le Goater1-0/+1
It fixes this W=1 compile error : ../arch/powerpc/kernel/smp.c:569:6: error: no previous prototype for ‘tick_broadcast’ [-Werror=missing-prototypes] 569 | void tick_broadcast(const struct cpumask *mask) | ^~~~~~~~~~~~~~ Signed-off-by: Cédric Le Goater <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-01-30powerpc/mce: Include prototypesCédric Le Goater1-0/+1
It fixes these W=1 compile errors : ../arch/powerpc/kernel/mce.c:591:14: error: no previous prototype for ‘machine_check_early’ [-Werror=missing-prototypes] 591 | long notrace machine_check_early(struct pt_regs *regs) | ^~~~~~~~~~~~~~~~~~~ ../arch/powerpc/kernel/mce.c:725:6: error: no previous prototype for ‘hmi_exception_realmode’ [-Werror=missing-prototypes] 725 | long hmi_exception_realmode(struct pt_regs *regs) | ^~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Cédric Le Goater <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-01-30powerpc/setup_64: Make some routines staticCédric Le Goater1-3/+4
The following routines are only called by local services and do not need to be external symbols. It fixes these W=1 errors : ../arch/powerpc/kernel/setup_64.c:261:13: error: no previous prototype for ‘record_spr_defaults’ [-Werror=missing-prototypes] 261 | void __init record_spr_defaults(void) | ^~~~~~~~~~~~~~~~~~~ ../arch/powerpc/kernel/setup_64.c:1011:6: error: no previous prototype for ‘entry_flush_enable’ [-Werror=missing-prototypes] 1011 | void entry_flush_enable(bool enable) | ^~~~~~~~~~~~~~~~~~ ../arch/powerpc/kernel/setup_64.c:1023:6: error: no previous prototype for ‘uaccess_flush_enable’ [-Werror=missing-prototypes] 1023 | void uaccess_flush_enable(bool enable) | ^~~~~~~~~~~~~~~~~~~~ Signed-off-by: Cédric Le Goater <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-01-30powerpc/pmem: Include pmem prototypesCédric Le Goater1-0/+1
It fixes this W=1 compile error : ../arch/powerpc/lib/pmem.c:51:6: error: no previous prototype for ‘arch_wb_cache_pmem’ [-Werror=missing-prototypes] 51 | void arch_wb_cache_pmem(void *addr, size_t size) | ^~~~~~~~~~~~~~~~~~ ../arch/powerpc/lib/pmem.c:58:6: error: no previous prototype for ‘arch_invalidate_pmem’ [-Werror=missing-prototypes] 58 | void arch_invalidate_pmem(void *addr, size_t size) | ^~~~~~~~~~~~~~~~~~~~ Fixes: 32ce3862af3c ("powerpc/lib: Implement PMEM API") Signed-off-by: Cédric Le Goater <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-01-30powerpc/pseries/ras: Make init_ras_hotplug_IRQ() staticCédric Le Goater1-1/+1
init_ras_hotplug_IRQ() is a local routine used by a machine init call and it doesn't need to be external. It fixes this W=1 compile error: ../arch/powerpc/platforms/pseries/ras.c:125:12: error: no previous prototype for ‘init_ras_hotplug_IRQ’ [-Werror=missing-prototypes] 125 | int __init init_ras_hotplug_IRQ(void) | ^~~~~~~~~~~~~~~~~~~~ Fixes: c9dccf1d074a ("powerpc/pseries: Enable RAS hotplug events later") Signed-off-by: Cédric Le Goater <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-01-30powerpc/pseries/eeh: Make pseries_pcibios_bus_add_device() staticCédric Le Goater1-1/+1
pseries_pcibios_bus_add_device() is a local routine defining the pcibios_bus_add_device() handler of the pseries machine in eeh_pseries_init(). It doesn't need to be external. It fixes this W=1 compile error: ../arch/powerpc/platforms/pseries/eeh_pseries.c:46:6: error: no previous prototype for ‘pseries_pcibios_bus_add_device’ [-Werror=missing-prototypes] 46 | void pseries_pcibios_bus_add_device(struct pci_dev *pdev) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Fixes: dae7253f9f78 ("powerpc/pseries: Add pseries SR-IOV Machine dependent calls") Signed-off-by: Cédric Le Goater <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-01-30powerpc/pseries/ras: Remove unused variable 'status'Cédric Le Goater1-9/+4
The last use of 'status' was removed in 2012. Remove the variable to fix this W=1 compile error. ../arch/powerpc/platforms/pseries/ras.c: In function ‘ras_epow_interrupt’: ../arch/powerpc/platforms/pseries/ras.c:318:6: error: variable ‘status’ set but not used [-Werror=unused-but-set-variable] 318 | int status; | ^~~~~~ Fixes: 55fc0c561742 ("powerpc/pseries: Parse and handle EPOW interrupts") Signed-off-by: Cédric Le Goater <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-01-30powerpc/mm: Include __find_linux_pte() prototypeCédric Le Goater1-0/+1
It fixes this W=1 compile error : ../arch/powerpc/mm/pgtable.c:337:8: error: no previous prototype for ‘__find_linux_pte’ [-Werror=missing-prototypes] 337 | pte_t *__find_linux_pte(pgd_t *pgdir, unsigned long ea, | ^~~~~~~~~~~~~~~~ Signed-off-by: Cédric Le Goater <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-01-30powerpc/perf/hv-24x7: Dont create sysfs event files for dummy eventsKajol Jain1-0/+15
The hv_24x7 performance monitoring unit creates a list of supported events from the event catalog obtained via HCALL. The hv_24x7 catalog could also contain invalid or dummy events with names like RESERVED*. These events do not have any hardware counters backing them. Add a check to string compare the event names to filter such events out. Result on power9 machine: Before this patch: ..... hv_24x7/PM_XLINK2_OUT_ODD_CYC,chip=?/ [Kernel PMU event] hv_24x7/PM_XLINK2_OUT_ODD_DATA_COUNT,chip=?/ [Kernel PMU event] hv_24x7/PM_XLINK2_OUT_ODD_TOTAL_UTIL,chip=?/ [Kernel PMU event] hv_24x7/PM_XTS_ATR_DEMAND_CHECKOUT,chip=?/ [Kernel PMU event] hv_24x7/PM_XTS_ATR_DEMAND_CHECKOUT_MISS,chip=?/ [Kernel PMU event] hv_24x7/PM_XTS_ATSD_SENT,chip=?/ [Kernel PMU event] hv_24x7/PM_XTS_ATSD_TLBI_RCV,chip=?/ [Kernel PMU event] hv_24x7/RESERVED_NEST1,chip=?/ [Kernel PMU event] hv_24x7/RESERVED_NEST10,chip=?/ [Kernel PMU event] hv_24x7/RESERVED_NEST11,chip=?/ [Kernel PMU event] hv_24x7/RESERVED_NEST12,chip=?/ [Kernel PMU event] hv_24x7/RESERVED_NEST13,chip=?/ [Kernel PMU event] ...... dmesg: [ 0.000362] printk: console [hvc0] enabled [ 0.815452] hv-24x7: read 1530 catalog entries, created 537 event attrs (0 failures), 275 descs After this patch: ...... hv_24x7/PM_XLINK2_OUT_ODD_AVLBL_CYC,chip=?/ [Kernel PMU event] hv_24x7/PM_XLINK2_OUT_ODD_CYC,chip=?/ [Kernel PMU event] hv_24x7/PM_XLINK2_OUT_ODD_DATA_COUNT,chip=?/ [Kernel PMU event] hv_24x7/PM_XLINK2_OUT_ODD_TOTAL_UTIL,chip=?/ [Kernel PMU event] hv_24x7/PM_XTS_ATR_DEMAND_CHECKOUT,chip=?/ [Kernel PMU event] hv_24x7/PM_XTS_ATR_DEMAND_CHECKOUT_MISS,chip=?/ [Kernel PMU event] hv_24x7/PM_XTS_ATSD_SENT,chip=?/ [Kernel PMU event] hv_24x7/PM_XTS_ATSD_TLBI_RCV,chip=?/ [Kernel PMU event] hv_24x7/TOD,chip=?/ [Kernel PMU event] ...... dmesg: [ 0.000357] printk: console [hvc0] enabled [ 0.808592] hv-24x7: read 1530 catalog entries, created 509 event attrs (0 failures), 275 descs Signed-off-by: Kajol Jain <[email protected]> [mpe: Simplify ignore_event(), minor change log formatting] Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-01-30powerpc/64s/kuap: Use mmu_has_feature()Michael Ellerman1-2/+2
In commit 8150a153c013 ("powerpc/64s: Use early_mmu_has_feature() in set_kuap()") we switched the KUAP code to use early_mmu_has_feature(), to avoid a bug where we called set_kuap() before feature patching had been done, leading to recursion and crashes. That path, which called probe_kernel_read() from printk(), has since been removed, see commit 2ac5a3bf7042 ("vsprintf: Do not break early boot with probing addresses"). Additionally probe_kernel_read() no longer invokes any KUAP routines, since commit fe557319aa06 ("maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault") and c33165253492 ("powerpc: use non-set_fs based maccess routines"). So it should now be safe to use mmu_has_feature() in the KUAP routines, because we shouldn't invoke them prior to feature patching. This is essentially a revert of commit 8150a153c013 ("powerpc/64s: Use early_mmu_has_feature() in set_kuap()"), but we've since added a second usage of early_mmu_has_feature() in get_kuap(), so we convert that to use mmu_has_feature() as well. Reported-by: Christophe Leroy <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Depends-on: c33165253492 ("powerpc: use non-set_fs based maccess routines"). Link: https://lore.kernel.org/r/[email protected]
2021-01-30 ocxl: use DEFINE_MUTEX() for mutex lockZheng Yongjun1-2/+1
mutex lock can be initialized automatically with DEFINE_MUTEX() rather than explicitly calling mutex_init(). Signed-off-by: Zheng Yongjun <[email protected]> Acked-by: Frederic Barrat <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-01-05selftests/powerpc: Make the test check in eeh-basic.sh posix compliantPo-Hsu Lin1-1/+1
The == operand is a bash extension, thus this will fail on Ubuntu with: ./eeh-basic.sh: 89: test: 2: unexpected operator As the /bin/sh on Ubuntu is pointed to DASH. Use -eq to fix this posix compatibility issue. Fixes: 996f9e0f93f162 ("selftests/powerpc: Fix eeh-basic.sh exit codes") Signed-off-by: Po-Hsu Lin <[email protected]> Reviewed-by: Frederic Barrat <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-01-03Linux 5.11-rc2Linus Torvalds1-1/+1
2021-01-02Merge tag 's390-5.11-3' of ↵Linus Torvalds4-21/+35
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 cleanups from Vasily Gorbik: "Update defconfigs and sort config select list" * tag 's390-5.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/Kconfig: sort config S390 select list once again s390: update defconfigs
2021-01-02Merge tag 'pm-5.11-rc2' of ↵Linus Torvalds4-5/+48
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fixes from Rafael Wysocki: "These fix a crash in intel_pstate during resume from suspend-to-RAM that may occur after recent changes and two resource leaks in error paths in the operating performance points (OPP) framework, add a new C-states table to intel_idle and update the cpuidle MAINTAINERS entry to cover the governors too. Specifics: - Fix recently introduced crash in the intel_pstate driver that occurs if scale-invariance is disabled during resume from suspend-to-RAM due to inconsistent changes of APERF or MPERF MSR values made by the platform firmware (Rafael Wysocki). - Fix a memory leak and add a missing clk_put() in error paths in the OPP framework (Quanyang Wang, Viresh Kumar). - Add new C-states table for SnowRidge processors to the intel_idle driver (Artem Bityutskiy). - Update the MAINTAINERS entry for cpuidle to make it clear that the governors are covered by it too (Lukas Bulwahn)" * tag 'pm-5.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: intel_idle: add SnowRidge C-state table cpufreq: intel_pstate: Fix fast-switch fallback path opp: Call the missing clk_put() on error opp: fix memory leak in _allocate_opp_table MAINTAINERS: include governors into CPU IDLE TIME MANAGEMENT FRAMEWORK
2021-01-02Merge branches 'pm-cpufreq' and 'pm-cpuidle'Rafael J. Wysocki3-3/+41
* pm-cpufreq: cpufreq: intel_pstate: Fix fast-switch fallback path * pm-cpuidle: intel_idle: add SnowRidge C-state table MAINTAINERS: include governors into CPU IDLE TIME MANAGEMENT FRAMEWORK
2021-01-01Merge tag 'scsi-fixes' of ↵Linus Torvalds21-86/+208
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "This is a load of driver fixes (12 ufs, 1 mpt3sas, 1 cxgbi). The big core two fixes are for power management ("block: Do not accept any requests while suspended" and "block: Fix a race in the runtime power management code") which finally sorts out the resume problems we've occasionally been having. To make the resume fix, there are seven necessary precursors which effectively renames REQ_PREEMPT to REQ_PM, so every "special" request in block is automatically a power management exempt one. All of the non-PM preempt cases are removed except for the one in the SCSI Parallel Interface (spi) domain validation which is a genuine case where we have to run requests at high priority to validate the bus so this becomes an autopm get/put protected request" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (22 commits) scsi: cxgb4i: Fix TLS dependency scsi: ufs: Un-inline ufshcd_vops_device_reset function scsi: ufs: Re-enable WriteBooster after device reset scsi: ufs-mediatek: Use correct path to fix compile error scsi: mpt3sas: Signedness bug in _base_get_diag_triggers() scsi: block: Do not accept any requests while suspended scsi: block: Remove RQF_PREEMPT and BLK_MQ_REQ_PREEMPT scsi: core: Only process PM requests if rpm_status != RPM_ACTIVE scsi: scsi_transport_spi: Set RQF_PM for domain validation commands scsi: ide: Mark power management requests with RQF_PM instead of RQF_PREEMPT scsi: ide: Do not set the RQF_PREEMPT flag for sense requests scsi: block: Introduce BLK_MQ_REQ_PM scsi: block: Fix a race in the runtime power management code scsi: ufs-pci: Enable UFSHCD_CAP_RPM_AUTOSUSPEND for Intel controllers scsi: ufs-pci: Fix recovery from hibernate exit errors for Intel controllers scsi: ufs-pci: Ensure UFS device is in PowerDown mode for suspend-to-disk ->poweroff() scsi: ufs-pci: Fix restore from S4 for Intel controllers scsi: ufs-mediatek: Keep VCC always-on for specific devices scsi: ufs: Allow regulators being always-on scsi: ufs: Clear UAC for RPMB after ufshcd resets ...
2021-01-01Merge tag 'block-5.11-2021-01-01' of git://git.kernel.dk/linux-blockLinus Torvalds2-1/+2
Pull block fixes from Jens Axboe: "Two minor block fixes from this last week that should go into 5.11: - Add missing NOWAIT debugfs definition (Andres) - Fix kerneldoc warning introduced this merge window (Randy)" * tag 'block-5.11-2021-01-01' of git://git.kernel.dk/linux-block: block: add debugfs stanza for QUEUE_FLAG_NOWAIT fs: block_dev.c: fix kernel-doc warnings from struct block_device changes
2021-01-01Merge tag 'io_uring-5.11-2021-01-01' of git://git.kernel.dk/linux-blockLinus Torvalds3-21/+43
Pull io_uring fixes from Jens Axboe: "A few fixes that should go into 5.11, all marked for stable as well: - Fix issue around identity COW'ing and users that share a ring across processes - Fix a hang associated with unregistering fixed files (Pavel) - Move the 'process is exiting' cancelation a bit earlier, so task_works aren't affected by it (Pavel)" * tag 'io_uring-5.11-2021-01-01' of git://git.kernel.dk/linux-block: kernel/io_uring: cancel io_uring before task works io_uring: fix io_sqe_files_unregister() hangs io_uring: add a helper for setting a ref node io_uring: don't assume mm is constant across submits
2021-01-01depmod: handle the case of /sbin/depmod without /sbin in PATHLinus Torvalds1-0/+2
Commit 436e980e2ed5 ("kbuild: don't hardcode depmod path") stopped hard-coding the path of depmod, but in the process caused trouble for distributions that had that /sbin location, but didn't have it in the PATH (generally because /sbin is limited to the super-user path). Work around it for now by just adding /sbin to the end of PATH in the depmod.sh script. Reported-and-tested-by: Sedat Dilek <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2020-12-30kernel/io_uring: cancel io_uring before task worksPavel Begunkov2-2/+2
For cancelling io_uring requests it needs either to be able to run currently enqueued task_works or having it shut down by that moment. Otherwise io_uring_cancel_files() may be waiting for requests that won't ever complete. Go with the first way and do cancellations before setting PF_EXITING and so before putting the task_work infrastructure into a transition state where task_work_run() would better not be called. Cc: [email protected] # 5.5+ Signed-off-by: Pavel Begunkov <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2020-12-30io_uring: fix io_sqe_files_unregister() hangsPavel Begunkov1-2/+22
io_sqe_files_unregister() uninterruptibly waits for enqueued ref nodes, however requests keeping them may never complete, e.g. because of some userspace dependency. Make sure it's interruptible otherwise it would hang forever. Cc: [email protected] # 5.6+ Signed-off-by: Pavel Begunkov <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2020-12-30io_uring: add a helper for setting a ref nodePavel Begunkov1-10/+12
Setting a new reference node to a file data is not trivial, don't repeat it, add and use a helper. Cc: [email protected] # 5.6+ Signed-off-by: Pavel Begunkov <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2020-12-30Merge tag 'ceph-for-5.11-rc2' of git://github.com/ceph/ceph-clientLinus Torvalds3-36/+36
Pull ceph fixes from Ilya Dryomov: "A fix for an edge case in MClientRequest encoding and a couple of trivial fixups for the new msgr2 support" * tag 'ceph-for-5.11-rc2' of git://github.com/ceph/ceph-client: libceph: add __maybe_unused to DEFINE_MSGR2_FEATURE libceph: align session_key and con_secret to 16 bytes libceph: fix auth_signature buffer allocation in secure mode ceph: reencode gid_list when reconnecting
2020-12-30intel_idle: add SnowRidge C-state tableArtem Bityutskiy1-1/+40
Add C-state table for the SnowRidge SoC which is found on Intel Jacobsville platforms. The following has been changed. 1. C1E latency changed from 10us to 15us. It was measured using the open source "wult" tool (the "nic" method, 15us is the 99.99th percentile). 2. C1E power break even changed from 20us to 25us, which may result in less C1E residency in some workloads. 3. C6 latency changed from 50us to 130us. Measured the same way as C1E. The C6 C-state is supported only by some SnowRidge revisions, so add a C-state table commentary about this. On SnowRidge, C6 support is enumerated via the usual mechanism: "mwait" leaf of the "cpuid" instruction. The 'intel_idle' driver does check this leaf, so even though C6 is present in the table, the driver will only use it if the CPU does support it. Signed-off-by: Artem Bityutskiy <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2020-12-30cpufreq: intel_pstate: Fix fast-switch fallback pathRafael J. Wysocki1-1/+0
When sugov_update_single_perf() falls back to the "frequency" path due to the missing scale-invariance, it will call cpufreq_driver_fast_switch() via sugov_fast_switch() and the driver's ->fast_switch() callback will be invoked, so it must not be NULL. However, after commit a365ab6b9dfb ("cpufreq: intel_pstate: Implement the ->adjust_perf() callback") intel_pstate sets ->fast_switch() to NULL when it is going to use intel_cpufreq_adjust_perf(), which is a mistake, because on x86 the scale-invariance may be turned off dynamically, so modify it to retain the original ->adjust_perf() callback pointer. Fixes: a365ab6b9dfb ("cpufreq: intel_pstate: Implement the ->adjust_perf() callback") Reported-by: Kenneth R. Crudup <[email protected]> Tested-by: Kenneth R. Crudup <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2020-12-30Merge branch 'opp/linux-next' of ↵Rafael J. Wysocki1-2/+7
git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm Pull operating performance points (OPP) framework fixes for 5.11-rc2 from Viresh Kumar: "This contains two patches to fix freeing of resources in error paths." * 'opp/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: opp: Call the missing clk_put() on error opp: fix memory leak in _allocate_opp_table
2020-12-30s390/Kconfig: sort config S390 select list once againHeiko Carstens1-14/+17
...and add comments at the top and bottom. Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Vasily Gorbik <[email protected]>
2020-12-30s390: update defconfigsHeiko Carstens3-7/+18
Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Vasily Gorbik <[email protected]>
2020-12-29block: add debugfs stanza for QUEUE_FLAG_NOWAITAndres Freund1-0/+1
This was missed in 021a24460dc2. Leads to the numeric value of QUEUE_FLAG_NOWAIT (i.e. 29) showing up in /sys/kernel/debug/block/*/state. Fixes: 021a24460dc28e7412aecfae89f60e1847e685c0 Cc: Konstantin Khlebnikov <[email protected]> Cc: Mike Snitzer <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Jens Axboe <[email protected]> Signed-off-by: Andres Freund <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2020-12-29fs: block_dev.c: fix kernel-doc warnings from struct block_device changesRandy Dunlap1-1/+1
Fix new kernel-doc warnings in fs/block_dev.c: ../fs/block_dev.c:1066: warning: Excess function parameter 'whole' description in 'bd_abort_claiming' ../fs/block_dev.c:1837: warning: Function parameter or member 'dev' not described in 'lookup_bdev' Fixes: 4e7b5671c6a8 ("block: remove i_bdev") Fixes: 37c3fc9abb25 ("block: simplify the block device claiming interface") Signed-off-by: Randy Dunlap <[email protected]> Cc: Jens Axboe <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: [email protected] Cc: Alexander Viro <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2020-12-29Merge branch 'akpm' (patches from Andrew)Linus Torvalds42-91/+101
Merge misc fixes from Andrew Morton: "16 patches Subsystems affected by this patch series: mm (selftests, hugetlb, pagecache, mremap, kasan, and slub), kbuild, checkpatch, misc, and lib" * emailed patches from Andrew Morton <[email protected]>: mm: slub: call account_slab_page() after slab page initialization zlib: move EXPORT_SYMBOL() and MODULE_LICENSE() out of dfltcc_syms.c lib/zlib: fix inflating zlib streams on s390 lib/genalloc: fix the overflow when size is too big kdev_t: always inline major/minor helper functions sizes.h: add SZ_8G/SZ_16G/SZ_32G macros local64.h: make <asm/local64.h> mandatory kasan: fix null pointer dereference in kasan_record_aux_stack mm: generalise COW SMC TLB flushing race comment mm/mremap.c: fix extent calculation mm: memmap defer init doesn't work as expected mm: add prototype for __add_to_page_cache_locked() checkpatch: prefer strscpy to strlcpy Revert "kbuild: avoid static_assert for genksyms" mm/hugetlb: fix deadlock in hugetlb_cow error path selftests/vm: fix building protection keys test
2020-12-29mm: slub: call account_slab_page() after slab page initializationRoman Gushchin1-3/+2
It's convenient to have page->objects initialized before calling into account_slab_page(). In particular, this information can be used to pre-alloc the obj_cgroup vector. Let's call account_slab_page() a bit later, after the initialization of page->objects. This commit doesn't bring any functional change, but is required for further optimizations. [[email protected]: undo changes needed by forthcoming mm-memcg-slab-pre-allocate-obj_cgroups-for-slab-caches-with-slab_account.patch] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Roman Gushchin <[email protected]> Acked-by: Johannes Weiner <[email protected]> Reviewed-by: Shakeel Butt <[email protected]> Cc: Michal Hocko <[email protected]> Cc: Christoph Lameter <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2020-12-29zlib: move EXPORT_SYMBOL() and MODULE_LICENSE() out of dfltcc_syms.cRandy Dunlap4-19/+9
In commit 11fb479ff5d9 ("zlib: export S390 symbols for zlib modules"), I added EXPORT_SYMBOL()s to dfltcc_inflate.c but then Mikhail said that these should probably be in dfltcc_syms.c with the other EXPORT_SYMBOL()s. However, that is contrary to the current kernel style, which places EXPORT_SYMBOL() immediately after the function that it applies to, so move all EXPORT_SYMBOL()s to their respective function locations and drop the dfltcc_syms.c file. Also move MODULE_LICENSE() from the deleted file to dfltcc.c. [[email protected]: remove dfltcc_syms.o from Makefile] Link: https://lkml.kernel.org/r/[email protected] Link: https://lkml.kernel.org/r/[email protected] Fixes: 11fb479ff5d9 ("zlib: export S390 symbols for zlib modules") Signed-off-by: Randy Dunlap <[email protected]> Cc: Acked-by: Ilya Leoshkevich <[email protected]> Acked-by: Christian Borntraeger <[email protected]> Cc: Zaslonko Mikhail <[email protected]> Cc: Heiko Carstens <[email protected]> Cc: Vasily Gorbik <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2020-12-29lib/zlib: fix inflating zlib streams on s390Ilya Leoshkevich1-2/+2
Decompressing zlib streams on s390 fails with "incorrect data check" error. Userspace zlib checks inflate_state.flags in order to byteswap checksums only for zlib streams, and s390 hardware inflate code, which was ported from there, tries to match this behavior. At the same time, kernel zlib does not use inflate_state.flags, so it contains essentially random values. For many use cases either zlib stream is zeroed out or checksum is not used, so this problem is masked, but at least SquashFS is still affected. Fix by always passing a checksum to and from the hardware as is, which matches zlib_inflate()'s expectations. Link: https://lkml.kernel.org/r/[email protected] Fixes: 126196100063 ("lib/zlib: add s390 hardware support for kernel zlib_inflate") Signed-off-by: Ilya Leoshkevich <[email protected]> Tested-by: Christian Borntraeger <[email protected]> Acked-by: Mikhail Zaslonko <[email protected]> Acked-by: Christian Borntraeger <[email protected]> Cc: Heiko Carstens <[email protected]> Cc: Vasily Gorbik <[email protected]> Cc: Mikhail Zaslonko <[email protected]> Cc: <[email protected]> [5.6+] Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2020-12-29lib/genalloc: fix the overflow when size is too bigHuang Shijie1-12/+13
Some graphic card has very big memory on chip, such as 32G bytes. In the following case, it will cause overflow: pool = gen_pool_create(PAGE_SHIFT, NUMA_NO_NODE); ret = gen_pool_add(pool, 0x1000000, SZ_32G, NUMA_NO_NODE); va = gen_pool_alloc(pool, SZ_4G); The overflow occurs in gen_pool_alloc_algo_owner(): .... size = nbits << order; .... The @nbits is "int" type, so it will overflow. Then the gen_pool_avail() will return the wrong value. This patch converts some "int" to "unsigned long", and changes the compare code in while. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Huang Shijie <[email protected]> Reported-by: Shi Jiasheng <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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