Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
authorLinus Torvalds <torvalds@linux-foundation.org>
Fri, 5 Jan 2018 20:17:33 +0000 (12:17 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 5 Jan 2018 20:17:33 +0000 (12:17 -0800)
Pull s390 fixes from Martin Schwidefsky:
 "Four bug fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/dasd: fix wrongly assigned configuration data
  s390: fix preemption race in disable_sacf_uaccess
  s390/sclp: disable FORTIFY_SOURCE for early sclp code
  s390/pci: handle insufficient resources during dma tlb flush

853 files changed:
.mailmap
Documentation/admin-guide/kernel-parameters.rst
Documentation/admin-guide/kernel-parameters.txt
Documentation/admin-guide/thunderbolt.rst
Documentation/arm64/silicon-errata.txt
Documentation/devicetree/bindings/mtd/jedec,spi-nor.txt
Documentation/devicetree/bindings/sound/da7218.txt
Documentation/devicetree/bindings/sound/da7219.txt
Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt
Documentation/filesystems/overlayfs.txt
Documentation/gpu/i915.rst
Documentation/locking/crossrelease.txt [deleted file]
Documentation/vm/zswap.txt
Documentation/x86/x86_64/mm.txt
MAINTAINERS
Makefile
arch/arm/boot/dts/aspeed-g4.dtsi
arch/arm/boot/dts/at91-tse850-3.dts
arch/arm/boot/dts/da850-lego-ev3.dts
arch/arm/boot/dts/exynos5800-peach-pi.dts
arch/arm/boot/dts/ls1021a-qds.dts
arch/arm/boot/dts/ls1021a-twr.dts
arch/arm/boot/dts/rk3066a-marsboard.dts
arch/arm/boot/dts/rk3288.dtsi
arch/arm/boot/dts/sun4i-a10.dtsi
arch/arm/boot/dts/sun5i-a10s.dtsi
arch/arm/boot/dts/sun6i-a31.dtsi
arch/arm/boot/dts/sun7i-a20.dtsi
arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts
arch/arm/boot/dts/tango4-common.dtsi
arch/arm/boot/dts/vf610-zii-dev-rev-c.dts
arch/arm/kernel/traps.c
arch/arm/lib/csumpartialcopyuser.S
arch/arm/mach-davinci/dm365.c
arch/arm64/Kconfig
arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts
arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts
arch/arm64/boot/dts/allwinner/sun50i-a64-sopine-baseboard.dts
arch/arm64/boot/dts/allwinner/sun50i-a64-sopine.dtsi
arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus2.dts
arch/arm64/boot/dts/renesas/salvator-common.dtsi
arch/arm64/boot/dts/renesas/ulcb.dtsi
arch/arm64/boot/dts/rockchip/rk3328-rock64.dts
arch/arm64/boot/dts/rockchip/rk3328.dtsi
arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
arch/arm64/boot/dts/socionext/uniphier-pxs3.dtsi
arch/arm64/include/asm/assembler.h
arch/arm64/include/asm/cpufeature.h
arch/arm64/include/asm/cputype.h
arch/arm64/include/asm/pgtable.h
arch/arm64/kernel/cpu-reset.S
arch/arm64/kernel/cpufeature.c
arch/arm64/kernel/efi-entry.S
arch/arm64/kernel/fpsimd.c
arch/arm64/kernel/head.S
arch/arm64/kernel/hw_breakpoint.c
arch/arm64/kernel/relocate_kernel.S
arch/arm64/kvm/hyp-init.S
arch/arm64/kvm/hyp/debug-sr.c
arch/arm64/mm/dump.c
arch/arm64/mm/fault.c
arch/arm64/mm/init.c
arch/m32r/kernel/traps.c
arch/parisc/boot/compressed/misc.c
arch/parisc/include/asm/thread_info.h
arch/parisc/kernel/entry.S
arch/parisc/kernel/hpmc.S
arch/parisc/kernel/unwind.c
arch/parisc/lib/delay.c
arch/powerpc/include/asm/mmu_context.h
arch/powerpc/kernel/process.c
arch/powerpc/kvm/book3s_xive.c
arch/powerpc/net/bpf_jit_comp64.c
arch/powerpc/perf/core-book3s.c
arch/powerpc/perf/imc-pmu.c
arch/powerpc/sysdev/fsl_msi.c
arch/riscv/include/asm/barrier.h
arch/riscv/kernel/setup.c
arch/riscv/kernel/sys_riscv.c
arch/s390/include/asm/pgtable.h
arch/s390/kernel/compat_linux.c
arch/s390/net/bpf_jit_comp.c
arch/sparc/lib/hweight.S
arch/sparc/mm/fault_32.c
arch/sparc/mm/fault_64.c
arch/sparc/mm/gup.c
arch/sparc/net/bpf_jit_comp_64.c
arch/um/include/asm/Kbuild
arch/um/include/asm/mmu_context.h
arch/um/kernel/trap.c
arch/unicore32/include/asm/mmu_context.h
arch/unicore32/kernel/traps.c
arch/x86/Kconfig
arch/x86/Kconfig.debug
arch/x86/boot/compressed/Makefile
arch/x86/boot/compressed/head_64.S
arch/x86/boot/compressed/misc.c
arch/x86/boot/compressed/pagetable.c
arch/x86/boot/compressed/pgtable_64.c [new file with mode: 0644]
arch/x86/boot/genimage.sh
arch/x86/entry/calling.h
arch/x86/entry/entry_32.S
arch/x86/entry/entry_64.S
arch/x86/entry/entry_64_compat.S
arch/x86/entry/vsyscall/vsyscall_64.c
arch/x86/events/intel/core.c
arch/x86/events/intel/ds.c
arch/x86/events/perf_event.h
arch/x86/include/asm/asm.h
arch/x86/include/asm/cpu_entry_area.h [new file with mode: 0644]
arch/x86/include/asm/cpufeature.h
arch/x86/include/asm/cpufeatures.h
arch/x86/include/asm/desc.h
arch/x86/include/asm/disabled-features.h
arch/x86/include/asm/espfix.h
arch/x86/include/asm/fixmap.h
arch/x86/include/asm/hypervisor.h
arch/x86/include/asm/intel_ds.h [new file with mode: 0644]
arch/x86/include/asm/invpcid.h [new file with mode: 0644]
arch/x86/include/asm/irqdomain.h
arch/x86/include/asm/irqflags.h
arch/x86/include/asm/kdebug.h
arch/x86/include/asm/mmu.h
arch/x86/include/asm/mmu_context.h
arch/x86/include/asm/paravirt.h
arch/x86/include/asm/pgalloc.h
arch/x86/include/asm/pgtable.h
arch/x86/include/asm/pgtable_32_types.h
arch/x86/include/asm/pgtable_64.h
arch/x86/include/asm/pgtable_64_types.h
arch/x86/include/asm/processor-flags.h
arch/x86/include/asm/processor.h
arch/x86/include/asm/pti.h [new file with mode: 0644]
arch/x86/include/asm/stacktrace.h
arch/x86/include/asm/suspend_32.h
arch/x86/include/asm/suspend_64.h
arch/x86/include/asm/switch_to.h
arch/x86/include/asm/thread_info.h
arch/x86/include/asm/tlbflush.h
arch/x86/include/asm/trace/irq_vectors.h
arch/x86/include/asm/traps.h
arch/x86/include/asm/unwind.h
arch/x86/include/asm/vsyscall.h
arch/x86/include/uapi/asm/processor-flags.h
arch/x86/kernel/apic/apic.c
arch/x86/kernel/apic/apic_flat_64.c
arch/x86/kernel/apic/apic_noop.c
arch/x86/kernel/apic/io_apic.c
arch/x86/kernel/apic/msi.c
arch/x86/kernel/apic/probe_32.c
arch/x86/kernel/apic/vector.c
arch/x86/kernel/apic/x2apic_cluster.c
arch/x86/kernel/asm-offsets.c
arch/x86/kernel/asm-offsets_32.c
arch/x86/kernel/asm-offsets_64.c
arch/x86/kernel/cpu/common.c
arch/x86/kernel/cpu/microcode/intel.c
arch/x86/kernel/doublefault.c
arch/x86/kernel/dumpstack.c
arch/x86/kernel/dumpstack_32.c
arch/x86/kernel/dumpstack_64.c
arch/x86/kernel/head_64.S
arch/x86/kernel/ioport.c
arch/x86/kernel/irq.c
arch/x86/kernel/irq_64.c
arch/x86/kernel/ldt.c
arch/x86/kernel/machine_kexec_32.c
arch/x86/kernel/paravirt_patch_64.c
arch/x86/kernel/process.c
arch/x86/kernel/process_32.c
arch/x86/kernel/process_64.c
arch/x86/kernel/smpboot.c
arch/x86/kernel/stacktrace.c
arch/x86/kernel/tls.c
arch/x86/kernel/traps.c
arch/x86/kernel/unwind_orc.c
arch/x86/kernel/vmlinux.lds.S
arch/x86/kvm/emulate.c
arch/x86/kvm/mmu.c
arch/x86/kvm/vmx.c
arch/x86/kvm/x86.c
arch/x86/lib/delay.c
arch/x86/lib/x86-opcode-map.txt
arch/x86/mm/Makefile
arch/x86/mm/cpu_entry_area.c [new file with mode: 0644]
arch/x86/mm/debug_pagetables.c
arch/x86/mm/dump_pagetables.c
arch/x86/mm/fault.c
arch/x86/mm/init.c
arch/x86/mm/init_32.c
arch/x86/mm/ioremap.c
arch/x86/mm/kasan_init_64.c
arch/x86/mm/kmmio.c
arch/x86/mm/mem_encrypt.c
arch/x86/mm/pgtable.c
arch/x86/mm/pgtable_32.c
arch/x86/mm/pti.c [new file with mode: 0644]
arch/x86/mm/tlb.c
arch/x86/pci/fixup.c
arch/x86/platform/efi/efi_64.c
arch/x86/platform/uv/tlb_uv.c
arch/x86/platform/uv/uv_irq.c
arch/x86/power/cpu.c
arch/x86/xen/apic.c
arch/x86/xen/enlighten.c
arch/x86/xen/enlighten_pv.c
arch/x86/xen/mmu_pv.c
arch/x86/xen/setup.c
block/bio.c
block/blk-map.c
block/blk-throttle.c
block/bounce.c
block/kyber-iosched.c
crypto/af_alg.c
crypto/algif_aead.c
crypto/algif_skcipher.c
crypto/chacha20poly1305.c
crypto/mcryptd.c
crypto/pcrypt.c
crypto/skcipher.c
drivers/acpi/apei/erst.c
drivers/acpi/cppc_acpi.c
drivers/acpi/device_pm.c
drivers/acpi/nfit/core.c
drivers/android/binder.c
drivers/base/cacheinfo.c
drivers/base/power/main.c
drivers/block/null_blk.c
drivers/bus/sunxi-rsb.c
drivers/clk/clk.c
drivers/clk/sunxi/clk-sun9i-mmc.c
drivers/cpufreq/cpufreq_governor.c
drivers/cpufreq/imx6q-cpufreq.c
drivers/crypto/chelsio/Kconfig
drivers/crypto/inside-secure/safexcel.c
drivers/crypto/inside-secure/safexcel_cipher.c
drivers/crypto/inside-secure/safexcel_hash.c
drivers/crypto/n2_core.c
drivers/dma/at_hdmac.c
drivers/dma/dma-jz4740.c
drivers/dma/dmatest.c
drivers/dma/fsl-edma.c
drivers/dma/ioat/init.c
drivers/gpio/gpio-bcm-kona.c
drivers/gpio/gpio-brcmstb.c
drivers/gpio/gpio-reg.c
drivers/gpio/gpio-tegra.c
drivers/gpio/gpio-xgene-sb.c
drivers/gpio/gpiolib-acpi.c
drivers/gpio/gpiolib-devprop.c
drivers/gpio/gpiolib-of.c
drivers/gpio/gpiolib.c
drivers/gpio/gpiolib.h
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
drivers/gpu/drm/amd/display/dc/core/dc_link.c
drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp.c
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp.h
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_cm.c
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
drivers/gpu/drm/amd/display/dc/inc/hw/dpp.h
drivers/gpu/drm/armada/armada_crtc.c
drivers/gpu/drm/armada/armada_crtc.h
drivers/gpu/drm/armada/armada_overlay.c
drivers/gpu/drm/drm_connector.c
drivers/gpu/drm/drm_crtc_internal.h
drivers/gpu/drm/drm_edid.c
drivers/gpu/drm/drm_lease.c
drivers/gpu/drm/drm_mm.c
drivers/gpu/drm/drm_mode_config.c
drivers/gpu/drm/drm_plane.c
drivers/gpu/drm/drm_syncobj.c
drivers/gpu/drm/i915/gvt/display.c
drivers/gpu/drm/i915/i915_drv.h
drivers/gpu/drm/i915/i915_gem.c
drivers/gpu/drm/i915/i915_reg.h
drivers/gpu/drm/i915/i915_sw_fence.c
drivers/gpu/drm/i915/intel_breadcrumbs.c
drivers/gpu/drm/i915/intel_cdclk.c
drivers/gpu/drm/i915/intel_ddi.c
drivers/gpu/drm/i915/intel_display.c
drivers/gpu/drm/i915/intel_lpe_audio.c
drivers/gpu/drm/i915/intel_psr.c
drivers/gpu/drm/i915/intel_runtime_pm.c
drivers/gpu/drm/nouveau/nouveau_bo.c
drivers/gpu/drm/nouveau/nouveau_drm.c
drivers/gpu/drm/nouveau/nouveau_drv.h
drivers/gpu/drm/nouveau/nouveau_fbcon.c
drivers/gpu/drm/nouveau/nouveau_mem.c
drivers/gpu/drm/nouveau/nouveau_ttm.c
drivers/gpu/drm/nouveau/nouveau_vmm.c
drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
drivers/gpu/drm/nouveau/nvkm/subdev/bios/dp.c
drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c
drivers/gpu/drm/nouveau/nvkm/subdev/pci/base.c
drivers/gpu/drm/omapdrm/dss/hdmi4_cec.c
drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c
drivers/gpu/drm/sun4i/sun4i_tcon.c
drivers/gpu/drm/ttm/ttm_page_alloc.c
drivers/gpu/drm/vc4/vc4_gem.c
drivers/gpu/drm/vc4/vc4_irq.c
drivers/hid/hid-core.c
drivers/hid/hid-cp2112.c
drivers/hid/hid-holtekff.c
drivers/hv/vmbus_drv.c
drivers/hwmon/hwmon.c
drivers/hwtracing/stm/ftrace.c
drivers/i2c/busses/i2c-cht-wc.c
drivers/i2c/busses/i2c-piix4.c
drivers/i2c/busses/i2c-stm32.h
drivers/i2c/busses/i2c-stm32f4.c
drivers/i2c/busses/i2c-stm32f7.c
drivers/infiniband/core/cma.c
drivers/infiniband/core/device.c
drivers/infiniband/core/iwcm.c
drivers/infiniband/core/nldev.c
drivers/infiniband/core/security.c
drivers/infiniband/core/uverbs_cmd.c
drivers/infiniband/core/verbs.c
drivers/infiniband/hw/cxgb4/cq.c
drivers/infiniband/hw/cxgb4/iw_cxgb4.h
drivers/infiniband/hw/cxgb4/qp.c
drivers/infiniband/hw/cxgb4/t4.h
drivers/infiniband/hw/hfi1/hfi.h
drivers/infiniband/hw/hfi1/pcie.c
drivers/infiniband/hw/mlx4/qp.c
drivers/infiniband/hw/mlx5/cmd.c
drivers/infiniband/hw/mlx5/cmd.h
drivers/infiniband/hw/mlx5/main.c
drivers/infiniband/hw/mlx5/mlx5_ib.h
drivers/infiniband/hw/mlx5/mr.c
drivers/infiniband/hw/vmw_pvrdma/pvrdma.h
drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c
drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c
drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c
drivers/infiniband/hw/vmw_pvrdma/pvrdma_srq.c
drivers/infiniband/ulp/ipoib/ipoib_cm.c
drivers/infiniband/ulp/ipoib/ipoib_ib.c
drivers/iommu/amd_iommu.c
drivers/iommu/intel_irq_remapping.c
drivers/irqchip/irq-gic-v3-its.c
drivers/irqchip/irq-renesas-intc-irqpin.c
drivers/leds/led-core.c
drivers/md/dm-bufio.c
drivers/md/dm-cache-target.c
drivers/md/dm-mpath.c
drivers/md/dm-snap.c
drivers/md/dm-table.c
drivers/md/dm-thin.c
drivers/mfd/arizona-irq.c
drivers/mfd/cros_ec_spi.c
drivers/mfd/twl4030-audio.c
drivers/mfd/twl6040.c
drivers/misc/eeprom/at24.c
drivers/misc/pti.c
drivers/mmc/core/card.h
drivers/mmc/core/mmc.c
drivers/mmc/core/quirks.h
drivers/mtd/mtdcore.c
drivers/mtd/nand/brcmnand/brcmnand.c
drivers/mtd/nand/gpio.c
drivers/mtd/nand/gpmi-nand/gpmi-nand.c
drivers/net/dsa/mv88e6xxx/port.c
drivers/net/ethernet/aquantia/atlantic/aq_cfg.h
drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c
drivers/net/ethernet/aquantia/atlantic/aq_hw.h
drivers/net/ethernet/aquantia/atlantic/aq_nic.c
drivers/net/ethernet/aquantia/atlantic/aq_nic.h
drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c
drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.c
drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c
drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_llh_internal.h
drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c
drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.h
drivers/net/ethernet/aquantia/atlantic/ver.h
drivers/net/ethernet/arc/emac.h
drivers/net/ethernet/arc/emac_main.c
drivers/net/ethernet/arc/emac_rockchip.c
drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
drivers/net/ethernet/broadcom/tg3.c
drivers/net/ethernet/broadcom/tg3.h
drivers/net/ethernet/freescale/fec_main.c
drivers/net/ethernet/marvell/mvneta.c
drivers/net/ethernet/marvell/skge.c
drivers/net/ethernet/mediatek/mtk_eth_soc.c
drivers/net/ethernet/mellanox/mlx4/en_port.c
drivers/net/ethernet/mellanox/mlx4/en_selftest.c
drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
drivers/net/ethernet/mellanox/mlx5/core/cmd.c
drivers/net/ethernet/mellanox/mlx5/core/en.h
drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c
drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
drivers/net/ethernet/mellanox/mlx5/core/en_main.c
drivers/net/ethernet/mellanox/mlx5/core/eq.c
drivers/net/ethernet/mellanox/mlx5/core/fpga/sdk.c
drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
drivers/net/ethernet/mellanox/mlx5/core/health.c
drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
drivers/net/ethernet/mellanox/mlx5/core/lag.c
drivers/net/ethernet/mellanox/mlx5/core/main.c
drivers/net/ethernet/mellanox/mlx5/core/qp.c
drivers/net/ethernet/mellanox/mlx5/core/rl.c
drivers/net/ethernet/mellanox/mlx5/core/vxlan.c
drivers/net/ethernet/mellanox/mlx5/core/vxlan.h
drivers/net/ethernet/mellanox/mlxsw/spectrum.c
drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
drivers/net/ethernet/netronome/nfp/bpf/main.c
drivers/net/ethernet/netronome/nfp/bpf/main.h
drivers/net/ethernet/qualcomm/emac/emac-phy.c
drivers/net/ethernet/qualcomm/emac/emac.c
drivers/net/ethernet/renesas/ravb_main.c
drivers/net/ethernet/renesas/sh_eth.c
drivers/net/ethernet/stmicro/stmmac/common.h
drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c
drivers/net/ethernet/stmicro/stmmac/enh_desc.c
drivers/net/ethernet/stmicro/stmmac/norm_desc.c
drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
drivers/net/hippi/rrunner.c
drivers/net/phy/at803x.c
drivers/net/phy/marvell.c
drivers/net/phy/mdio-xgene.c
drivers/net/phy/mdio_bus.c
drivers/net/phy/meson-gxl.c
drivers/net/phy/micrel.c
drivers/net/phy/phy.c
drivers/net/phy/phy_device.c
drivers/net/phy/phylink.c
drivers/net/usb/qmi_wwan.c
drivers/net/vxlan.c
drivers/net/wireless/mac80211_hwsim.c
drivers/nvdimm/btt.c
drivers/nvdimm/btt.h
drivers/nvdimm/pfn_devs.c
drivers/nvme/host/core.c
drivers/nvme/host/fc.c
drivers/nvmem/meson-mx-efuse.c
drivers/of/of_mdio.c
drivers/parisc/lba_pci.c
drivers/pci/host/pci-hyperv.c
drivers/pci/host/pcie-rcar.c
drivers/pci/pci-driver.c
drivers/phy/motorola/phy-cpcap-usb.c
drivers/phy/renesas/Kconfig
drivers/phy/rockchip/phy-rockchip-typec.c
drivers/phy/tegra/xusb.c
drivers/pinctrl/intel/pinctrl-cherryview.c
drivers/pinctrl/pinctrl-single.c
drivers/pinctrl/stm32/pinctrl-stm32.c
drivers/s390/net/qeth_core.h
drivers/s390/net/qeth_core_main.c
drivers/s390/net/qeth_l3.h
drivers/s390/net/qeth_l3_main.c
drivers/s390/net/qeth_l3_sys.c
drivers/scsi/aacraid/aacraid.h
drivers/scsi/aacraid/commsup.c
drivers/scsi/aacraid/linit.c
drivers/scsi/bfa/bfad_bsg.c
drivers/scsi/bfa/bfad_im.c
drivers/scsi/bfa/bfad_im.h
drivers/scsi/libfc/fc_lport.c
drivers/scsi/libsas/sas_expander.c
drivers/scsi/lpfc/lpfc_mem.c
drivers/scsi/osd/osd_initiator.c
drivers/scsi/scsi_debugfs.c
drivers/scsi/scsi_devinfo.c
drivers/scsi/scsi_lib.c
drivers/scsi/scsi_scan.c
drivers/scsi/scsi_sysfs.c
drivers/scsi/scsi_transport_spi.c
drivers/scsi/sd.c
drivers/scsi/storvsc_drv.c
drivers/spi/spi-armada-3700.c
drivers/spi/spi-atmel.c
drivers/spi/spi-rspi.c
drivers/spi/spi-sun4i.c
drivers/spi/spi-xilinx.c
drivers/staging/android/ion/Kconfig
drivers/staging/android/ion/ion.c
drivers/staging/android/ion/ion_cma_heap.c
drivers/staging/ccree/ssi_hash.c
drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c
drivers/staging/pi433/rf69.c
drivers/target/target_core_pscsi.c
drivers/thunderbolt/nhi.c
drivers/tty/n_tty.c
drivers/usb/chipidea/ci_hdrc_msm.c
drivers/usb/core/config.c
drivers/usb/core/quirks.c
drivers/usb/dwc2/core.h
drivers/usb/dwc2/gadget.c
drivers/usb/dwc2/params.c
drivers/usb/dwc3/dwc3-of-simple.c
drivers/usb/dwc3/gadget.c
drivers/usb/gadget/Kconfig
drivers/usb/gadget/legacy/Kconfig
drivers/usb/host/xhci-debugfs.c
drivers/usb/host/xhci-mem.c
drivers/usb/host/xhci-pci.c
drivers/usb/host/xhci-ring.c
drivers/usb/host/xhci.c
drivers/usb/musb/da8xx.c
drivers/usb/serial/ftdi_sio.c
drivers/usb/serial/ftdi_sio_ids.h
drivers/usb/serial/option.c
drivers/usb/serial/qcserial.c
drivers/usb/storage/unusual_devs.h
drivers/usb/storage/unusual_uas.h
drivers/usb/usbip/stub_dev.c
drivers/usb/usbip/stub_main.c
drivers/usb/usbip/stub_rx.c
drivers/usb/usbip/stub_tx.c
drivers/usb/usbip/usbip_common.c
drivers/usb/usbip/usbip_common.h
drivers/usb/usbip/vhci_hcd.c
drivers/usb/usbip/vhci_rx.c
drivers/usb/usbip/vhci_sysfs.c
drivers/usb/usbip/vhci_tx.c
drivers/virtio/virtio_mmio.c
drivers/xen/Kconfig
drivers/xen/balloon.c
drivers/xen/pvcalls-front.c
fs/afs/dir.c
fs/afs/inode.c
fs/afs/rxrpc.c
fs/afs/write.c
fs/autofs4/waitq.c
fs/ceph/mds_client.c
fs/cifs/smb2ops.c
fs/cifs/smb2pdu.c
fs/cramfs/Kconfig
fs/dax.c
fs/exec.c
fs/ext4/extents.c
fs/ext4/ialloc.c
fs/ext4/inode.c
fs/ext4/namei.c
fs/namespace.c
fs/nfs/client.c
fs/nfs/nfs4client.c
fs/nfs/write.c
fs/nfsd/auth.c
fs/overlayfs/Kconfig
fs/overlayfs/dir.c
fs/overlayfs/namei.c
fs/overlayfs/overlayfs.h
fs/overlayfs/ovl_entry.h
fs/overlayfs/readdir.c
fs/overlayfs/super.c
fs/super.c
fs/userfaultfd.c
fs/xfs/libxfs/xfs_alloc.c
fs/xfs/libxfs/xfs_attr.c
fs/xfs/libxfs/xfs_attr_leaf.c
fs/xfs/libxfs/xfs_attr_leaf.h
fs/xfs/libxfs/xfs_bmap.c
fs/xfs/libxfs/xfs_defer.c
fs/xfs/libxfs/xfs_defer.h
fs/xfs/libxfs/xfs_ialloc.c
fs/xfs/libxfs/xfs_ialloc.h
fs/xfs/libxfs/xfs_iext_tree.c
fs/xfs/libxfs/xfs_refcount.c
fs/xfs/libxfs/xfs_rmap.c
fs/xfs/libxfs/xfs_rmap.h
fs/xfs/scrub/scrub.c
fs/xfs/scrub/trace.c
fs/xfs/xfs_extfree_item.c
fs/xfs/xfs_fsops.c
fs/xfs/xfs_icache.c
fs/xfs/xfs_icache.h
fs/xfs/xfs_inode.c
fs/xfs/xfs_inode.h
fs/xfs/xfs_iomap.c
fs/xfs/xfs_qm.c
fs/xfs/xfs_reflink.c
fs/xfs/xfs_super.c
fs/xfs/xfs_symlink.c
fs/xfs/xfs_trace.c
include/asm-generic/mm_hooks.h
include/asm-generic/pgtable.h
include/crypto/if_alg.h
include/crypto/mcryptd.h
include/drm/drm_connector.h
include/drm/drm_edid.h
include/drm/drm_mode_config.h
include/kvm/arm_arch_timer.h
include/linux/bio.h
include/linux/blk_types.h
include/linux/blkdev.h
include/linux/bpf_verifier.h
include/linux/compiler.h
include/linux/completion.h
include/linux/cpuhotplug.h
include/linux/cred.h
include/linux/fscache.h
include/linux/gpio/driver.h
include/linux/idr.h
include/linux/intel-pti.h [new file with mode: 0644]
include/linux/ipv6.h
include/linux/irq.h
include/linux/irqdesc.h
include/linux/irqdomain.h
include/linux/lockdep.h
include/linux/mfd/rtsx_pci.h
include/linux/mlx5/driver.h
include/linux/mlx5/mlx5_ifc.h
include/linux/oom.h
include/linux/pci.h
include/linux/pm.h
include/linux/pti.h
include/linux/ptr_ring.h
include/linux/rbtree.h
include/linux/rwlock_types.h
include/linux/sched.h
include/linux/sched/coredump.h
include/linux/spi/spi.h
include/linux/spinlock.h
include/linux/spinlock_types.h
include/linux/string.h
include/linux/tick.h
include/linux/timer.h
include/linux/trace.h
include/net/cfg80211.h
include/net/gue.h
include/net/ip.h
include/net/pkt_cls.h
include/net/sch_generic.h
include/net/sock.h
include/net/xfrm.h
include/trace/events/clk.h
include/trace/events/kvm.h
include/trace/events/preemptirq.h
include/trace/events/tcp.h
include/uapi/linux/pkt_sched.h
include/uapi/linux/rtnetlink.h
include/xen/balloon.h
init/Kconfig
init/main.c
kernel/acct.c
kernel/bpf/hashtab.c
kernel/bpf/verifier.c
kernel/cpu.c
kernel/exit.c
kernel/fork.c
kernel/groups.c
kernel/irq/debug.h
kernel/irq/debugfs.c
kernel/irq/generic-chip.c
kernel/irq/internals.h
kernel/irq/irqdomain.c
kernel/irq/msi.c
kernel/kcov.c
kernel/locking/lockdep.c
kernel/locking/spinlock.c
kernel/pid.c
kernel/sched/core.c
kernel/sched/cpufreq_schedutil.c
kernel/sched/rt.c
kernel/time/Kconfig
kernel/time/posix-timers.c
kernel/time/tick-sched.c
kernel/time/timer.c
kernel/trace/Kconfig
kernel/trace/bpf_trace.c
kernel/trace/ring_buffer.c
kernel/trace/trace.c
kernel/trace/trace_stack.c
kernel/uid16.c
lib/Kconfig.debug
lib/kobject_uevent.c
lib/mpi/longlong.h
lib/rbtree.c
lib/test_bpf.c
lib/timerqueue.c
mm/backing-dev.c
mm/debug.c
mm/early_ioremap.c
mm/frame_vector.c
mm/gup.c
mm/hmm.c
mm/huge_memory.c
mm/kmemleak.c
mm/memory.c
mm/mmap.c
mm/mprotect.c
mm/oom_kill.c
mm/page_alloc.c
mm/slab.c
mm/sparse.c
mm/zsmalloc.c
net/batman-adv/bat_iv_ogm.c
net/batman-adv/bat_v.c
net/batman-adv/fragmentation.c
net/batman-adv/tp_meter.c
net/bridge/br_netlink.c
net/core/dev.c
net/core/net_namespace.c
net/core/netprio_cgroup.c
net/core/skbuff.c
net/dsa/slave.c
net/ipv4/devinet.c
net/ipv4/fib_frontend.c
net/ipv4/fib_semantics.c
net/ipv4/igmp.c
net/ipv4/ip_gre.c
net/ipv4/ip_tunnel.c
net/ipv4/netfilter/arp_tables.c
net/ipv4/netfilter/ip_tables.c
net/ipv4/netfilter/ipt_CLUSTERIP.c
net/ipv4/raw.c
net/ipv4/tcp_input.c
net/ipv4/tcp_ipv4.c
net/ipv4/tcp_timer.c
net/ipv4/xfrm4_input.c
net/ipv6/af_inet6.c
net/ipv6/ip6_gre.c
net/ipv6/ip6_output.c
net/ipv6/ip6_tunnel.c
net/ipv6/ipv6_sockglue.c
net/ipv6/mcast.c
net/ipv6/netfilter/ip6_tables.c
net/ipv6/netfilter/ip6t_MASQUERADE.c
net/ipv6/route.c
net/ipv6/tcp_ipv6.c
net/ipv6/xfrm6_input.c
net/mac80211/ht.c
net/netfilter/nf_conntrack_h323_asn1.c
net/netfilter/nf_conntrack_netlink.c
net/netfilter/nf_conntrack_proto_tcp.c
net/netfilter/nf_tables_api.c
net/netfilter/nfnetlink_cthelper.c
net/netfilter/nfnetlink_log.c
net/netfilter/nfnetlink_queue.c
net/netfilter/nft_exthdr.c
net/netfilter/x_tables.c
net/netfilter/xt_bpf.c
net/netfilter/xt_osf.c
net/netlink/af_netlink.c
net/openvswitch/flow.c
net/rds/send.c
net/sched/act_meta_mark.c
net/sched/act_meta_skbtcindex.c
net/sched/cls_api.c
net/sched/cls_bpf.c
net/sched/cls_u32.c
net/sched/sch_api.c
net/sched/sch_generic.c
net/sched/sch_ingress.c
net/sched/sch_red.c
net/sctp/debug.c
net/sctp/socket.c
net/sctp/ulpqueue.c
net/strparser/strparser.c
net/sunrpc/auth_gss/gss_rpc_xdr.c
net/sunrpc/auth_gss/svcauth_gss.c
net/sunrpc/svcauth_unix.c
net/sunrpc/xprt.c
net/sunrpc/xprtrdma/rpc_rdma.c
net/sunrpc/xprtrdma/transport.c
net/sunrpc/xprtrdma/verbs.c
net/sunrpc/xprtrdma/xprt_rdma.h
net/tipc/bearer.c
net/tipc/group.c
net/tipc/monitor.c
net/tipc/socket.c
net/wireless/Makefile
net/wireless/certs/sforshee.hex [new file with mode: 0644]
net/wireless/certs/sforshee.x509 [deleted file]
net/wireless/nl80211.c
net/xfrm/xfrm_input.c
net/xfrm/xfrm_policy.c
net/xfrm/xfrm_state.c
net/xfrm/xfrm_user.c
scripts/checkpatch.pl
scripts/faddr2line
security/Kconfig
security/commoncap.c
sound/core/rawmidi.c
sound/hda/hdac_i915.c
sound/pci/hda/patch_conexant.c
sound/pci/hda/patch_hdmi.c
sound/pci/hda/patch_realtek.c
sound/soc/amd/acp-pcm-dma.c
sound/soc/atmel/Kconfig
sound/soc/codecs/da7218.c
sound/soc/codecs/msm8916-wcd-analog.c
sound/soc/codecs/msm8916-wcd-digital.c
sound/soc/codecs/nau8825.c
sound/soc/codecs/rt5514-spi.c
sound/soc/codecs/rt5514.c
sound/soc/codecs/rt5645.c
sound/soc/codecs/rt5663.c
sound/soc/codecs/rt5663.h
sound/soc/codecs/tlv320aic31xx.h
sound/soc/codecs/twl4030.c
sound/soc/codecs/wm_adsp.c
sound/soc/fsl/fsl_asrc.h
sound/soc/fsl/fsl_ssi.c
sound/soc/intel/boards/kbl_rt5663_max98927.c
sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c
sound/soc/intel/skylake/skl-nhlt.c
sound/soc/intel/skylake/skl-topology.c
sound/soc/rockchip/rockchip_spdif.c
sound/soc/sh/rcar/adg.c
sound/soc/sh/rcar/core.c
sound/soc/sh/rcar/dma.c
sound/soc/sh/rcar/ssi.c
sound/soc/sh/rcar/ssiu.c
sound/usb/mixer.c
sound/usb/quirks.c
tools/arch/s390/include/uapi/asm/bpf_perf_event.h
tools/arch/s390/include/uapi/asm/perf_regs.h [new file with mode: 0644]
tools/arch/x86/include/asm/cpufeatures.h
tools/bpf/bpftool/map.c
tools/bpf/bpftool/prog.c
tools/include/linux/compiler.h
tools/include/linux/lockdep.h
tools/include/uapi/asm/bpf_perf_event.h [new file with mode: 0644]
tools/include/uapi/linux/kvm.h
tools/kvm/kvm_stat/kvm_stat
tools/kvm/kvm_stat/kvm_stat.txt
tools/objtool/arch/x86/decode.c
tools/objtool/arch/x86/lib/x86-opcode-map.txt
tools/objtool/builtin-orc.c
tools/objtool/orc_gen.c
tools/perf/Makefile.config
tools/perf/arch/s390/include/perf_regs.h
tools/perf/check-headers.sh
tools/perf/jvmti/jvmti_agent.c
tools/perf/jvmti/jvmti_agent.h
tools/perf/jvmti/libjvmti.c
tools/perf/util/intel-pt-decoder/x86-opcode-map.txt
tools/perf/util/mmap.h
tools/testing/selftests/bpf/Makefile
tools/testing/selftests/bpf/test_progs.c
tools/testing/selftests/bpf/test_verifier.c
tools/testing/selftests/net/config
tools/testing/selftests/x86/ldt_gdt.c
tools/usb/usbip/libsrc/vhci_driver.c
tools/usb/usbip/src/utils.c
tools/virtio/ringtest/ptr_ring.c
tools/vm/slabinfo-gnuplot.sh
virt/kvm/arm/arch_timer.c
virt/kvm/arm/arm.c
virt/kvm/arm/mmio.c
virt/kvm/arm/mmu.c

index 1469ff0d3f4d55dde07c676e4c4fc29f432d20f3..e18cab73e209a7b3057cfd672356dab6d9846483 100644 (file)
--- a/.mailmap
+++ b/.mailmap
@@ -107,6 +107,7 @@ Linus L├╝ssing <linus.luessing@c0d3.blue> <linus.luessing@ascom.ch>
 Maciej W. Rozycki <macro@mips.com> <macro@imgtec.com>
 Marcin Nowakowski <marcin.nowakowski@mips.com> <marcin.nowakowski@imgtec.com>
 Mark Brown <broonie@sirena.org.uk>
+Mark Yao <markyao0591@gmail.com> <mark.yao@rock-chips.com>
 Martin Kepplinger <martink@posteo.de> <martin.kepplinger@theobroma-systems.com>
 Martin Kepplinger <martink@posteo.de> <martin.kepplinger@ginzinger.com>
 Matthieu CASTET <castet.matthieu@free.fr>
index b2598cc9834c3cbacfd9b3b1d885ed69c4c4c133..7242cbda15dd3bf8c4debea387ff2c8e376aeb60 100644 (file)
@@ -109,6 +109,7 @@ parameter is applicable::
        IPV6    IPv6 support is enabled.
        ISAPNP  ISA PnP code is enabled.
        ISDN    Appropriate ISDN support is enabled.
+       ISOL    CPU Isolation is enabled.
        JOY     Appropriate joystick support is enabled.
        KGDB    Kernel debugger support is enabled.
        KVM     Kernel Virtual Machine support is enabled.
index 6571fbfdb2a1527c25b3a01e9c4228c84adce639..af7104aaffd92f1eb3db02df44ffc33e7df78adc 100644 (file)
                        not play well with APC CPU idle - disable it if you have
                        APC and your system crashes randomly.
 
-       apic=           [APIC,X86-32] Advanced Programmable Interrupt Controller
+       apic=           [APIC,X86] Advanced Programmable Interrupt Controller
                        Change the output verbosity whilst booting
                        Format: { quiet (default) | verbose | debug }
                        Change the amount of debugging information output
                        when initialising the APIC and IO-APIC components.
+                       For X86-32, this can also be used to specify an APIC
+                       driver name.
+                       Format: apic=driver_name
+                       Examples: apic=bigsmp
 
        apic_extnmi=    [APIC,X86] External NMI delivery setting
                        Format: { bsp (default) | all | none }
        isapnp=         [ISAPNP]
                        Format: <RDP>,<reset>,<pci_scan>,<verbosity>
 
-       isolcpus=       [KNL,SMP] Isolate a given set of CPUs from disturbance.
+       isolcpus=       [KNL,SMP,ISOL] Isolate a given set of CPUs from disturbance.
                        [Deprecated - use cpusets instead]
                        Format: [flag-list,]<cpu-list>
 
                        Valid arguments: on, off
                        Default: on
 
-       nohz_full=      [KNL,BOOT]
+       nohz_full=      [KNL,BOOT,SMP,ISOL]
                        The argument is a cpu list, as described above.
                        In kernels built with CONFIG_NO_HZ_FULL=y, set
                        the specified list of CPUs whose tick will be stopped
                        steal time is computed, but won't influence scheduler
                        behaviour
 
+       nopti           [X86-64] Disable kernel page table isolation
+
        nolapic         [X86-32,APIC] Do not enable or use the local APIC.
 
        nolapic_timer   [X86-32,APIC] Do not use the local APIC timer.
        pt.             [PARIDE]
                        See Documentation/blockdev/paride.txt.
 
+       pti=            [X86_64]
+                       Control user/kernel address space isolation:
+                       on - enable
+                       off - disable
+                       auto - default setting
+
        pty.legacy_count=
                        [KNL] Number of legacy pty's. Overwrites compiled-in
                        default number.
index de50a8561774249351515662404e2a1f8328aba6..9b55952039a692d8119ce62502af9a4dd071b8e6 100644 (file)
@@ -230,7 +230,7 @@ If supported by your machine this will be exposed by the WMI bus with
 a sysfs attribute called "force_power".
 
 For example the intel-wmi-thunderbolt driver exposes this attribute in:
-  /sys/devices/platform/PNP0C14:00/wmi_bus/wmi_bus-PNP0C14:00/86CCFD48-205E-4A77-9C48-2021CBEDE341/force_power
+  /sys/bus/wmi/devices/86CCFD48-205E-4A77-9C48-2021CBEDE341/force_power
 
   To force the power to on, write 1 to this attribute file.
   To disable force power, write 0 to this attribute file.
index 304bf22bb83cc0ec8dfbbcf2a48b206ecb781afb..fc1c884fea10497357f889b11e33c6d323fecf55 100644 (file)
@@ -75,3 +75,4 @@ stable kernels.
 | Qualcomm Tech. | Falkor v1       | E1003           | QCOM_FALKOR_ERRATUM_1003    |
 | Qualcomm Tech. | Falkor v1       | E1009           | QCOM_FALKOR_ERRATUM_1009    |
 | Qualcomm Tech. | QDF2400 ITS     | E0065           | QCOM_QDF2400_ERRATUM_0065   |
+| Qualcomm Tech. | Falkor v{1,2}   | E1041           | QCOM_FALKOR_ERRATUM_1041    |
index 376fa2f50e6bc9b41052928037acd4b3a382d380..956bb046e599d576e3f881b2901e0d369a3c9802 100644 (file)
@@ -13,7 +13,6 @@ Required properties:
                  at25df321a
                  at25df641
                  at26df081a
-                 en25s64
                  mr25h128
                  mr25h256
                  mr25h10
@@ -33,7 +32,6 @@ Required properties:
                  s25fl008k
                  s25fl064k
                  sst25vf040b
-                 sst25wf040b
                  m25p40
                  m25p80
                  m25p16
index 5ca5a709b6aa1989901eff6b9239f0bc71d0d272..3ab9dfef38d113523549e66cee20ad8db6e56842 100644 (file)
@@ -73,7 +73,7 @@ Example:
                compatible = "dlg,da7218";
                reg = <0x1a>;
                interrupt-parent = <&gpio6>;
-               interrupts = <11 IRQ_TYPE_LEVEL_HIGH>;
+               interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
                wakeup-source;
 
                VDD-supply = <&reg_audio>;
index cf61681826b675ad984dc17f6c1dbcc2e1b6fc35..5b54d2d045c355808bf0f58afba9ec7539ff4472 100644 (file)
@@ -77,7 +77,7 @@ Example:
                reg = <0x1a>;
 
                interrupt-parent = <&gpio6>;
-               interrupts = <11 IRQ_TYPE_LEVEL_HIGH>;
+               interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
 
                VDD-supply = <&reg_audio>;
                VDDMIC-supply = <&reg_audio>;
index 5bf13960f7f4a3c826c10b1e15a618df82d82403..e3c48b20b1a691b37d0b425251a257c682a38eca 100644 (file)
@@ -12,24 +12,30 @@ Required properties:
   - "fsl,imx53-ecspi" for SPI compatible with the one integrated on i.MX53 and later Soc
 - reg : Offset and length of the register set for the device
 - interrupts : Should contain CSPI/eCSPI interrupt
-- cs-gpios : Specifies the gpio pins to be used for chipselects.
 - clocks : Clock specifiers for both ipg and per clocks.
 - clock-names : Clock names should include both "ipg" and "per"
 See the clock consumer binding,
        Documentation/devicetree/bindings/clock/clock-bindings.txt
-- dmas: DMA specifiers for tx and rx dma. See the DMA client binding,
-               Documentation/devicetree/bindings/dma/dma.txt
-- dma-names: DMA request names should include "tx" and "rx" if present.
 
-Obsolete properties:
-- fsl,spi-num-chipselects : Contains the number of the chipselect
+Recommended properties:
+- cs-gpios : GPIOs to use as chip selects, see spi-bus.txt.  While the native chip
+select lines can be used, they appear to always generate a pulse between each
+word of a transfer.  Most use cases will require GPIO based chip selects to
+generate a valid transaction.
 
 Optional properties:
+- num-cs :  Number of total chip selects, see spi-bus.txt.
+- dmas: DMA specifiers for tx and rx dma. See the DMA client binding,
+Documentation/devicetree/bindings/dma/dma.txt.
+- dma-names: DMA request names, if present, should include "tx" and "rx".
 - fsl,spi-rdy-drctl: Integer, representing the value of DRCTL, the register
 controlling the SPI_READY handling. Note that to enable the DRCTL consideration,
 the SPI_READY mode-flag needs to be set too.
 Valid values are: 0 (disabled), 1 (edge-triggered burst) and 2 (level-triggered burst).
 
+Obsolete properties:
+- fsl,spi-num-chipselects : Contains the number of the chipselect
+
 Example:
 
 ecspi@70010000 {
index 8caa60734647f70a777b8a568ba9f2dd99182fb8..e6a5f4912b6d4a4910ed1d2fc494fff304ab47ff 100644 (file)
@@ -156,6 +156,40 @@ handle it in two different ways:
    root of the overlay.  Finally the directory is moved to the new
    location.
 
+There are several ways to tune the "redirect_dir" feature.
+
+Kernel config options:
+
+- OVERLAY_FS_REDIRECT_DIR:
+    If this is enabled, then redirect_dir is turned on by  default.
+- OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW:
+    If this is enabled, then redirects are always followed by default. Enabling
+    this results in a less secure configuration.  Enable this option only when
+    worried about backward compatibility with kernels that have the redirect_dir
+    feature and follow redirects even if turned off.
+
+Module options (can also be changed through /sys/module/overlay/parameters/*):
+
+- "redirect_dir=BOOL":
+    See OVERLAY_FS_REDIRECT_DIR kernel config option above.
+- "redirect_always_follow=BOOL":
+    See OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW kernel config option above.
+- "redirect_max=NUM":
+    The maximum number of bytes in an absolute redirect (default is 256).
+
+Mount options:
+
+- "redirect_dir=on":
+    Redirects are enabled.
+- "redirect_dir=follow":
+    Redirects are not created, but followed.
+- "redirect_dir=off":
+    Redirects are not created and only followed if "redirect_always_follow"
+    feature is enabled in the kernel/module config.
+- "redirect_dir=nofollow":
+    Redirects are not created and not followed (equivalent to "redirect_dir=off"
+    if "redirect_always_follow" feature is not enabled).
+
 Non-directories
 ---------------
 
index 2e7ee0313c1cd6c0377d2b4a3f4948641f9a84a2..e94d3ac2bdd02db6711db2a5424b69c613c20a69 100644 (file)
@@ -341,10 +341,7 @@ GuC
 GuC-specific firmware loader
 ----------------------------
 
-.. kernel-doc:: drivers/gpu/drm/i915/intel_guc_loader.c
-   :doc: GuC-specific firmware loader
-
-.. kernel-doc:: drivers/gpu/drm/i915/intel_guc_loader.c
+.. kernel-doc:: drivers/gpu/drm/i915/intel_guc_fw.c
    :internal:
 
 GuC-based command submission
diff --git a/Documentation/locking/crossrelease.txt b/Documentation/locking/crossrelease.txt
deleted file mode 100644 (file)
index bdf1423..0000000
+++ /dev/null
@@ -1,874 +0,0 @@
-Crossrelease
-============
-
-Started by Byungchul Park <byungchul.park@lge.com>
-
-Contents:
-
- (*) Background
-
-     - What causes deadlock
-     - How lockdep works
-
- (*) Limitation
-
-     - Limit lockdep
-     - Pros from the limitation
-     - Cons from the limitation
-     - Relax the limitation
-
- (*) Crossrelease
-
-     - Introduce crossrelease
-     - Introduce commit
-
- (*) Implementation
-
-     - Data structures
-     - How crossrelease works
-
- (*) Optimizations
-
-     - Avoid duplication
-     - Lockless for hot paths
-
- (*) APPENDIX A: What lockdep does to work aggresively
-
- (*) APPENDIX B: How to avoid adding false dependencies
-
-
-==========
-Background
-==========
-
-What causes deadlock
---------------------
-
-A deadlock occurs when a context is waiting for an event to happen,
-which is impossible because another (or the) context who can trigger the
-event is also waiting for another (or the) event to happen, which is
-also impossible due to the same reason.
-
-For example:
-
-   A context going to trigger event C is waiting for event A to happen.
-   A context going to trigger event A is waiting for event B to happen.
-   A context going to trigger event B is waiting for event C to happen.
-
-A deadlock occurs when these three wait operations run at the same time,
-because event C cannot be triggered if event A does not happen, which in
-turn cannot be triggered if event B does not happen, which in turn
-cannot be triggered if event C does not happen. After all, no event can
-be triggered since any of them never meets its condition to wake up.
-
-A dependency might exist between two waiters and a deadlock might happen
-due to an incorrect releationship between dependencies. Thus, we must
-define what a dependency is first. A dependency exists between them if:
-
-   1. There are two waiters waiting for each event at a given time.
-   2. The only way to wake up each waiter is to trigger its event.
-   3. Whether one can be woken up depends on whether the other can.
-
-Each wait in the example creates its dependency like:
-
-   Event C depends on event A.
-   Event A depends on event B.
-   Event B depends on event C.
-
-   NOTE: Precisely speaking, a dependency is one between whether a
-   waiter for an event can be woken up and whether another waiter for
-   another event can be woken up. However from now on, we will describe
-   a dependency as if it's one between an event and another event for
-   simplicity.
-
-And they form circular dependencies like:
-
-    -> C -> A -> B -
-   /                \
-   \                /
-    ----------------
-
-   where 'A -> B' means that event A depends on event B.
-
-Such circular dependencies lead to a deadlock since no waiter can meet
-its condition to wake up as described.
-
-CONCLUSION
-
-Circular dependencies cause a deadlock.
-
-
-How lockdep works
------------------
-
-Lockdep tries to detect a deadlock by checking dependencies created by
-lock operations, acquire and release. Waiting for a lock corresponds to
-waiting for an event, and releasing a lock corresponds to triggering an
-event in the previous section.
-
-In short, lockdep does:
-
-   1. Detect a new dependency.
-   2. Add the dependency into a global graph.
-   3. Check if that makes dependencies circular.
-   4. Report a deadlock or its possibility if so.
-
-For example, consider a graph built by lockdep that looks like:
-
-   A -> B -
-           \
-            -> E
-           /
-   C -> D -
-
-   where A, B,..., E are different lock classes.
-
-Lockdep will add a dependency into the graph on detection of a new
-dependency. For example, it will add a dependency 'E -> C' when a new
-dependency between lock E and lock C is detected. Then the graph will be:
-
-       A -> B -
-               \
-                -> E -
-               /      \
-    -> C -> D -        \
-   /                   /
-   \                  /
-    ------------------
-
-   where A, B,..., E are different lock classes.
-
-This graph contains a subgraph which demonstrates circular dependencies:
-
-                -> E -
-               /      \
-    -> C -> D -        \
-   /                   /
-   \                  /
-    ------------------
-
-   where C, D and E are different lock classes.
-
-This is the condition under which a deadlock might occur. Lockdep
-reports it on detection after adding a new dependency. This is the way
-how lockdep works.
-
-CONCLUSION
-
-Lockdep detects a deadlock or its possibility by checking if circular
-dependencies were created after adding each new dependency.
-
-
-==========
-Limitation
-==========
-
-Limit lockdep
--------------
-
-Limiting lockdep to work on only typical locks e.g. spin locks and
-mutexes, which are released within the acquire context, the
-implementation becomes simple but its capacity for detection becomes
-limited. Let's check pros and cons in next section.
-
-
-Pros from the limitation
-------------------------
-
-Given the limitation, when acquiring a lock, locks in a held_locks
-cannot be released if the context cannot acquire it so has to wait to
-acquire it, which means all waiters for the locks in the held_locks are
-stuck. It's an exact case to create dependencies between each lock in
-the held_locks and the lock to acquire.
-
-For example:
-
-   CONTEXT X
-   ---------
-   acquire A
-   acquire B /* Add a dependency 'A -> B' */
-   release B
-   release A
-
-   where A and B are different lock classes.
-
-When acquiring lock A, the held_locks of CONTEXT X is empty thus no
-dependency is added. But when acquiring lock B, lockdep detects and adds
-a new dependency 'A -> B' between lock A in the held_locks and lock B.
-They can be simply added whenever acquiring each lock.
-
-And data required by lockdep exists in a local structure, held_locks
-embedded in task_struct. Forcing to access the data within the context,
-lockdep can avoid racy problems without explicit locks while handling
-the local data.
-
-Lastly, lockdep only needs to keep locks currently being held, to build
-a dependency graph. However, relaxing the limitation, it needs to keep
-even locks already released, because a decision whether they created
-dependencies might be long-deferred.
-
-To sum up, we can expect several advantages from the limitation:
-
-   1. Lockdep can easily identify a dependency when acquiring a lock.
-   2. Races are avoidable while accessing local locks in a held_locks.
-   3. Lockdep only needs to keep locks currently being held.
-
-CONCLUSION
-
-Given the limitation, the implementation becomes simple and efficient.
-
-
-Cons from the limitation
-------------------------
-
-Given the limitation, lockdep is applicable only to typical locks. For
-example, page locks for page access or completions for synchronization
-cannot work with lockdep.
-
-Can we detect deadlocks below, under the limitation?
-
-Example 1:
-
-   CONTEXT X      CONTEXT Y       CONTEXT Z
-   ---------      ---------       ----------
-                  mutex_lock A
-   lock_page B
-                  lock_page B
-                                  mutex_lock A /* DEADLOCK */
-                                  unlock_page B held by X
-                  unlock_page B
-                  mutex_unlock A
-                                  mutex_unlock A
-
-   where A and B are different lock classes.
-
-No, we cannot.
-
-Example 2:
-
-   CONTEXT X              CONTEXT Y
-   ---------              ---------
-                          mutex_lock A
-   mutex_lock A
-                          wait_for_complete B /* DEADLOCK */
-   complete B
-                          mutex_unlock A
-   mutex_unlock A
-
-   where A is a lock class and B is a completion variable.
-
-No, we cannot.
-
-CONCLUSION
-
-Given the limitation, lockdep cannot detect a deadlock or its
-possibility caused by page locks or completions.
-
-
-Relax the limitation
---------------------
-
-Under the limitation, things to create dependencies are limited to
-typical locks. However, synchronization primitives like page locks and
-completions, which are allowed to be released in any context, also
-create dependencies and can cause a deadlock. So lockdep should track
-these locks to do a better job. We have to relax the limitation for
-these locks to work with lockdep.
-
-Detecting dependencies is very important for lockdep to work because
-adding a dependency means adding an opportunity to check whether it
-causes a deadlock. The more lockdep adds dependencies, the more it
-thoroughly works. Thus Lockdep has to do its best to detect and add as
-many true dependencies into a graph as possible.
-
-For example, considering only typical locks, lockdep builds a graph like:
-
-   A -> B -
-           \
-            -> E
-           /
-   C -> D -
-
-   where A, B,..., E are different lock classes.
-
-On the other hand, under the relaxation, additional dependencies might
-be created and added. Assuming additional 'FX -> C' and 'E -> GX' are
-added thanks to the relaxation, the graph will be:
-
-         A -> B -
-                 \
-                  -> E -> GX
-                 /
-   FX -> C -> D -
-
-   where A, B,..., E, FX and GX are different lock classes, and a suffix
-   'X' is added on non-typical locks.
-
-The latter graph gives us more chances to check circular dependencies
-than the former. However, it might suffer performance degradation since
-relaxing the limitation, with which design and implementation of lockdep
-can be efficient, might introduce inefficiency inevitably. So lockdep
-should provide two options, strong detection and efficient detection.
-
-Choosing efficient detection:
-
-   Lockdep works with only locks restricted to be released within the
-   acquire context. However, lockdep works efficiently.
-
-Choosing strong detection:
-
-   Lockdep works with all synchronization primitives. However, lockdep
-   suffers performance degradation.
-
-CONCLUSION
-
-Relaxing the limitation, lockdep can add additional dependencies giving
-additional opportunities to check circular dependencies.
-
-
-============
-Crossrelease
-============
-
-Introduce crossrelease
-----------------------
-
-In order to allow lockdep to handle additional dependencies by what
-might be released in any context, namely 'crosslock', we have to be able
-to identify those created by crosslocks. The proposed 'crossrelease'
-feature provoides a way to do that.
-
-Crossrelease feature has to do:
-
-   1. Identify dependencies created by crosslocks.
-   2. Add the dependencies into a dependency graph.
-
-That's all. Once a meaningful dependency is added into graph, then
-lockdep would work with the graph as it did. The most important thing
-crossrelease feature has to do is to correctly identify and add true
-dependencies into the global graph.
-
-A dependency e.g. 'A -> B' can be identified only in the A's release
-context because a decision required to identify the dependency can be
-made only in the release context. That is to decide whether A can be
-released so that a waiter for A can be woken up. It cannot be made in
-other than the A's release context.
-
-It's no matter for typical locks because each acquire context is same as
-its release context, thus lockdep can decide whether a lock can be
-released in the acquire context. However for crosslocks, lockdep cannot
-make the decision in the acquire context but has to wait until the
-release context is identified.
-
-Therefore, deadlocks by crosslocks cannot be detected just when it
-happens, because those cannot be identified until the crosslocks are
-released. However, deadlock possibilities can be detected and it's very
-worth. See 'APPENDIX A' section to check why.
-
-CONCLUSION
-
-Using crossrelease feature, lockdep can work with what might be released
-in any context, namely crosslock.
-
-
-Introduce commit
-----------------
-
-Since crossrelease defers the work adding true dependencies of
-crosslocks until they are actually released, crossrelease has to queue
-all acquisitions which might create dependencies with the crosslocks.
-Then it identifies dependencies using the queued data in batches at a
-proper time. We call it 'commit'.
-
-There are four types of dependencies:
-
-1. TT type: 'typical lock A -> typical lock B'
-
-   Just when acquiring B, lockdep can see it's in the A's release
-   context. So the dependency between A and B can be identified
-   immediately. Commit is unnecessary.
-
-2. TC type: 'typical lock A -> crosslock BX'
-
-   Just when acquiring BX, lockdep can see it's in the A's release
-   context. So the dependency between A and BX can be identified
-   immediately. Commit is unnecessary, too.
-
-3. CT type: 'crosslock AX -> typical lock B'
-
-   When acquiring B, lockdep cannot identify the dependency because
-   there's no way to know if it's in the AX's release context. It has
-   to wait until the decision can be made. Commit is necessary.
-
-4. CC type: 'crosslock AX -> crosslock BX'
-
-   When acquiring BX, lockdep cannot identify the dependency because
-   there's no way to know if it's in the AX's release context. It has
-   to wait until the decision can be made. Commit is necessary.
-   But, handling CC type is not implemented yet. It's a future work.
-
-Lockdep can work without commit for typical locks, but commit step is
-necessary once crosslocks are involved. Introducing commit, lockdep
-performs three steps. What lockdep does in each step is:
-
-1. Acquisition: For typical locks, lockdep does what it originally did
-   and queues the lock so that CT type dependencies can be checked using
-   it at the commit step. For crosslocks, it saves data which will be
-   used at the commit step and increases a reference count for it.
-
-2. Commit: No action is reauired for typical locks. For crosslocks,
-   lockdep adds CT type dependencies using the data saved at the
-   acquisition step.
-
-3. Release: No changes are required for typical locks. When a crosslock
-   is released, it decreases a reference count for it.
-
-CONCLUSION
-
-Crossrelease introduces commit step to handle dependencies of crosslocks
-in batches at a proper time.
-
-
-==============
-Implementation
-==============
-
-Data structures
----------------
-
-Crossrelease introduces two main data structures.
-
-1. hist_lock
-
-   This is an array embedded in task_struct, for keeping lock history so
-   that dependencies can be added using them at the commit step. Since
-   it's local data, it can be accessed locklessly in the owner context.
-   The array is filled at the acquisition step and consumed at the
-   commit step. And it's managed in circular manner.
-
-2. cross_lock
-
-   One per lockdep_map exists. This is for keeping data of crosslocks
-   and used at the commit step.
-
-
-How crossrelease works
-----------------------
-
-It's the key of how crossrelease works, to defer necessary works to an
-appropriate point in time and perform in at once at the commit step.
-Let's take a look with examples step by step, starting from how lockdep
-works without crossrelease for typical locks.
-
-   acquire A /* Push A onto held_locks */
-   acquire B /* Push B onto held_locks and add 'A -> B' */
-   acquire C /* Push C onto held_locks and add 'B -> C' */
-   release C /* Pop C from held_locks */
-   release B /* Pop B from held_locks */
-   release A /* Pop A from held_locks */
-
-   where A, B and C are different lock classes.
-
-   NOTE: This document assumes that readers already understand how
-   lockdep works without crossrelease thus omits details. But there's
-   one thing to note. Lockdep pretends to pop a lock from held_locks
-   when releasing it. But it's subtly different from the original pop
-   operation because lockdep allows other than the top to be poped.
-
-In this case, lockdep adds 'the top of held_locks -> the lock to acquire'
-dependency every time acquiring a lock.
-
-After adding 'A -> B', a dependency graph will be:
-
-   A -> B
-
-   where A and B are different lock classes.
-
-And after adding 'B -> C', the graph will be:
-
-   A -> B -> C
-
-   where A, B and C are different lock classes.
-
-Let's performs commit step even for typical locks to add dependencies.
-Of course, commit step is not necessary for them, however, it would work
-well because this is a more general way.
-
-   acquire A
-   /*
-    * Queue A into hist_locks
-    *
-    * In hist_locks: A
-    * In graph: Empty
-    */
-
-   acquire B
-   /*
-    * Queue B into hist_locks
-    *
-    * In hist_locks: A, B
-    * In graph: Empty
-    */
-
-   acquire C
-   /*
-    * Queue C into hist_locks
-    *
-    * In hist_locks: A, B, C
-    * In graph: Empty
-    */
-
-   commit C
-   /*
-    * Add 'C -> ?'
-    * Answer the following to decide '?'
-    * What has been queued since acquire C: Nothing
-    *
-    * In hist_locks: A, B, C
-    * In graph: Empty
-    */
-
-   release C
-
-   commit B
-   /*
-    * Add 'B -> ?'
-    * Answer the following to decide '?'
-    * What has been queued since acquire B: C
-    *
-    * In hist_locks: A, B, C
-    * In graph: 'B -> C'
-    */
-
-   release B
-
-   commit A
-   /*
-    * Add 'A -> ?'
-    * Answer the following to decide '?'
-    * What has been queued since acquire A: B, C
-    *
-    * In hist_locks: A, B, C
-    * In graph: 'B -> C', 'A -> B', 'A -> C'
-    */
-
-   release A
-
-   where A, B and C are different lock classes.
-
-In this case, dependencies are added at the commit step as described.
-
-After commits for A, B and C, the graph will be:
-
-   A -> B -> C
-
-   where A, B and C are different lock classes.
-
-   NOTE: A dependency 'A -> C' is optimized out.
-
-We can see the former graph built without commit step is same as the
-latter graph built using commit steps. Of course the former way leads to
-earlier finish for building the graph, which means we can detect a
-deadlock or its possibility sooner. So the former way would be prefered
-when possible. But we cannot avoid using the latter way for crosslocks.
-
-Let's look at how commit steps work for crosslocks. In this case, the
-commit step is performed only on crosslock AX as real. And it assumes
-that the AX release context is different from the AX acquire context.
-
-   BX RELEASE CONTEXT             BX ACQUIRE CONTEXT
-   ------------------             ------------------
-                                  acquire A
-                                  /*
-                                   * Push A onto held_locks
-                                   * Queue A into hist_locks
-                                   *
-                                   * In held_locks: A
-                                   * In hist_locks: A
-                                   * In graph: Empty
-                                   */
-
-                                  acquire BX
-                                  /*
-                                   * Add 'the top of held_locks -> BX'
-                                   *
-                                   * In held_locks: A
-                                   * In hist_locks: A
-                                   * In graph: 'A -> BX'
-                                   */
-
-   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-   It must be guaranteed that the following operations are seen after
-   acquiring BX globally. It can be done by things like barrier.
-   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-   acquire C
-   /*
-    * Push C onto held_locks
-    * Queue C into hist_locks
-    *
-    * In held_locks: C
-    * In hist_locks: C
-    * In graph: 'A -> BX'
-    */
-
-   release C
-   /*
-    * Pop C from held_locks
-    *
-    * In held_locks: Empty
-    * In hist_locks: C
-    * In graph: 'A -> BX'
-    */
-                                  acquire D
-                                  /*
-                                   * Push D onto held_locks
-                                   * Queue D into hist_locks
-                                   * Add 'the top of held_locks -> D'
-                                   *
-                                   * In held_locks: A, D
-                                   * In hist_locks: A, D
-                                   * In graph: 'A -> BX', 'A -> D'
-                                   */
-   acquire E
-   /*
-    * Push E onto held_locks
-    * Queue E into hist_locks
-    *
-    * In held_locks: E
-    * In hist_locks: C, E
-    * In graph: 'A -> BX', 'A -> D'
-    */
-
-   release E
-   /*
-    * Pop E from held_locks
-    *
-    * In held_locks: Empty
-    * In hist_locks: D, E
-    * In graph: 'A -> BX', 'A -> D'
-    */
-                                  release D
-                                  /*
-                                   * Pop D from held_locks
-                                   *
-                                   * In held_locks: A
-                                   * In hist_locks: A, D
-                                   * In graph: 'A -> BX', 'A -> D'
-                                   */
-   commit BX
-   /*
-    * Add 'BX -> ?'
-    * What has been queued since acquire BX: C, E
-    *
-    * In held_locks: Empty
-    * In hist_locks: D, E
-    * In graph: 'A -> BX', 'A -> D',
-    *           'BX -> C', 'BX -> E'
-    */
-
-   release BX
-   /*
-    * In held_locks: Empty
-    * In hist_locks: D, E
-    * In graph: 'A -> BX', 'A -> D',
-    *           'BX -> C', 'BX -> E'
-    */
-                                  release A
-                                  /*
-                                   * Pop A from held_locks
-                                   *
-                                   * In held_locks: Empty
-                                   * In hist_locks: A, D
-                                   * In graph: 'A -> BX', 'A -> D',
-                                   *           'BX -> C', 'BX -> E'
-                                   */
-
-   where A, BX, C,..., E are different lock classes, and a suffix 'X' is
-   added on crosslocks.
-
-Crossrelease considers all acquisitions after acqiuring BX are
-candidates which might create dependencies with BX. True dependencies
-will be determined when identifying the release context of BX. Meanwhile,
-all typical locks are queued so that they can be used at the commit step.
-And then two dependencies 'BX -> C' and 'BX -> E' are added at the
-commit step when identifying the release context.
-
-The final graph will be, with crossrelease:
-
-               -> C
-              /
-       -> BX -
-      /       \
-   A -         -> E
-      \
-       -> D
-
-   where A, BX, C,..., E are different lock classes, and a suffix 'X' is
-   added on crosslocks.
-
-However, the final graph will be, without crossrelease:
-
-   A -> D
-
-   where A and D are different lock classes.
-
-The former graph has three more dependencies, 'A -> BX', 'BX -> C' and
-'BX -> E' giving additional opportunities to check if they cause
-deadlocks. This way lockdep can detect a deadlock or its possibility
-caused by crosslocks.
-
-CONCLUSION
-
-We checked how crossrelease works with several examples.
-
-
-=============
-Optimizations
-=============
-
-Avoid duplication
------------------
-
-Crossrelease feature uses a cache like what lockdep already uses for
-dependency chains, but this time it's for caching CT type dependencies.
-Once that dependency is cached, the same will never be added again.
-
-
-Lockless for hot paths
-----------------------
-
-To keep all locks for later use at the commit step, crossrelease adopts
-a local array embedded in task_struct, which makes access to the data
-lockless by forcing it to happen only within the owner context. It's
-like how lockdep handles held_locks. Lockless implmentation is important
-since typical locks are very frequently acquired and released.
-
-
-=================================================
-APPENDIX A: What lockdep does to work aggresively
-=================================================
-
-A deadlock actually occurs when all wait operations creating circular
-dependencies run at the same time. Even though they don't, a potential
-deadlock exists if the problematic dependencies exist. Thus it's
-meaningful to detect not only an actual deadlock but also its potential
-possibility. The latter is rather valuable. When a deadlock occurs
-actually, we can identify what happens in the system by some means or
-other even without lockdep. However, there's no way to detect possiblity
-without lockdep unless the whole code is parsed in head. It's terrible.
-Lockdep does the both, and crossrelease only focuses on the latter.
-
-Whether or not a deadlock actually occurs depends on several factors.
-For example, what order contexts are switched in is a factor. Assuming
-circular dependencies exist, a deadlock would occur when contexts are
-switched so that all wait operations creating the dependencies run
-simultaneously. Thus to detect a deadlock possibility even in the case
-that it has not occured yet, lockdep should consider all possible
-combinations of dependencies, trying to:
-
-1. Use a global dependency graph.
-
-   Lockdep combines all dependencies into one global graph and uses them,
-   regardless of which context generates them or what order contexts are
-   switched in. Aggregated dependencies are only considered so they are
-   prone to be circular if a problem exists.
-
-2. Check dependencies between classes instead of instances.
-
-   What actually causes a deadlock are instances of lock. However,
-   lockdep checks dependencies between classes instead of instances.
-   This way lockdep can detect a deadlock which has not happened but
-   might happen in future by others but the same class.
-
-3. Assume all acquisitions lead to waiting.
-
-   Although locks might be acquired without waiting which is essential
-   to create dependencies, lockdep assumes all acquisitions lead to
-   waiting since it might be true some time or another.
-
-CONCLUSION
-
-Lockdep detects not only an actual deadlock but also its possibility,
-and the latter is more valuable.
-
-
-==================================================
-APPENDIX B: How to avoid adding false dependencies
-==================================================
-
-Remind what a dependency is. A dependency exists if:
-
-   1. There are two waiters waiting for each event at a given time.
-   2. The only way to wake up each waiter is to trigger its event.
-   3. Whether one can be woken up depends on whether the other can.
-
-For example:
-
-   acquire A
-   acquire B /* A dependency 'A -> B' exists */
-   release B
-   release A
-
-   where A and B are different lock classes.
-
-A depedency 'A -> B' exists since:
-
-   1. A waiter for A and a waiter for B might exist when acquiring B.
-   2. Only way to wake up each is to release what it waits for.
-   3. Whether the waiter for A can be woken up depends on whether the
-      other can. IOW, TASK X cannot release A if it fails to acquire B.
-
-For another example:
-
-   TASK X                         TASK Y
-   ------                         ------
-                                  acquire AX
-   acquire B /* A dependency 'AX -> B' exists */
-   release B
-   release AX held by Y
-
-   where AX and B are different lock classes, and a suffix 'X' is added
-   on crosslocks.
-
-Even in this case involving crosslocks, the same rule can be applied. A
-depedency 'AX -> B' exists since:
-
-   1. A waiter for AX and a waiter for B might exist when acquiring B.
-   2. Only way to wake up each is to release what it waits for.
-   3. Whether the waiter for AX can be woken up depends on whether the
-      other can. IOW, TASK X cannot release AX if it fails to acquire B.
-
-Let's take a look at more complicated example:
-
-   TASK X                         TASK Y
-   ------                         ------
-   acquire B
-   release B
-   fork Y
-                                  acquire AX
-   acquire C /* A dependency 'AX -> C' exists */
-   release C
-   release AX held by Y
-
-   where AX, B and C are different lock classes, and a suffix 'X' is
-   added on crosslocks.
-
-Does a dependency 'AX -> B' exist? Nope.
-
-Two waiters are essential to create a dependency. However, waiters for
-AX and B to create 'AX -> B' cannot exist at the same time in this
-example. Thus the dependency 'AX -> B' cannot be created.
-
-It would be ideal if the full set of true ones can be considered. But
-we can ensure nothing but what actually happened. Relying on what
-actually happens at runtime, we can anyway add only true ones, though
-they might be a subset of true ones. It's similar to how lockdep works
-for typical locks. There might be more true dependencies than what
-lockdep has detected in runtime. Lockdep has no choice but to rely on
-what actually happens. Crossrelease also relies on it.
-
-CONCLUSION
-
-Relying on what actually happens, lockdep can avoid adding false
-dependencies.
index 89fff7d611ccb533a5c3d375bc94fecf3c2e0687..0b3a1148f9f0414558ed0537b4219225162ccc3a 100644 (file)
@@ -98,5 +98,25 @@ request is made for a page in an old zpool, it is uncompressed using its
 original compressor.  Once all pages are removed from an old zpool, the zpool
 and its compressor are freed.
 
+Some of the pages in zswap are same-value filled pages (i.e. contents of the
+page have same value or repetitive pattern). These pages include zero-filled
+pages and they are handled differently. During store operation, a page is
+checked if it is a same-value filled page before compressing it. If true, the
+compressed length of the page is set to zero and the pattern or same-filled
+value is stored.
+
+Same-value filled pages identification feature is enabled by default and can be
+disabled at boot time by setting the "same_filled_pages_enabled" attribute to 0,
+e.g. zswap.same_filled_pages_enabled=0. It can also be enabled and disabled at
+runtime using the sysfs "same_filled_pages_enabled" attribute, e.g.
+
+echo 1 > /sys/module/zswap/parameters/same_filled_pages_enabled
+
+When zswap same-filled page identification is disabled at runtime, it will stop
+checking for the same-value filled pages during store operation. However, the
+existing pages which are marked as same-value filled pages remain stored
+unchanged in zswap until they are either loaded or invalidated.
+
 A debugfs interface is provided for various statistic about pool size, number
-of pages stored, and various counters for the reasons pages are rejected.
+of pages stored, same-value filled pages and various counters for the reasons
+pages are rejected.
index 3448e675b4623ce81b5e0bc1116c52a12c411801..ad41b3813f0a3a3bd5abb32532b42c9b820bbe27 100644 (file)
@@ -1,6 +1,4 @@
 
-<previous description obsolete, deleted>
-
 Virtual memory map with 4 level page tables:
 
 0000000000000000 - 00007fffffffffff (=47 bits) user space, different per mm
@@ -14,13 +12,16 @@ ffffea0000000000 - ffffeaffffffffff (=40 bits) virtual memory map (1TB)
 ... unused hole ...
 ffffec0000000000 - fffffbffffffffff (=44 bits) kasan shadow memory (16TB)
 ... unused hole ...
+fffffe0000000000 - fffffe7fffffffff (=39 bits) LDT remap for PTI
+fffffe8000000000 - fffffeffffffffff (=39 bits) cpu_entry_area mapping
 ffffff0000000000 - ffffff7fffffffff (=39 bits) %esp fixup stacks
 ... unused hole ...
 ffffffef00000000 - fffffffeffffffff (=64 GB) EFI region mapping space
 ... unused hole ...
 ffffffff80000000 - ffffffff9fffffff (=512 MB)  kernel text mapping, from phys 0
-ffffffffa0000000 - ffffffffff5fffff (=1526 MB) module mapping space (variable)
-ffffffffff600000 - ffffffffffdfffff (=8 MB) vsyscalls
+ffffffffa0000000 - [fixmap start]   (~1526 MB) module mapping space (variable)
+[fixmap start]   - ffffffffff5fffff kernel-internal fixmap range
+ffffffffff600000 - ffffffffff600fff (=4 kB) legacy vsyscall ABI
 ffffffffffe00000 - ffffffffffffffff (=2 MB) unused hole
 
 Virtual memory map with 5 level page tables:
@@ -29,26 +30,29 @@ Virtual memory map with 5 level page tables:
 hole caused by [56:63] sign extension
 ff00000000000000 - ff0fffffffffffff (=52 bits) guard hole, reserved for hypervisor
 ff10000000000000 - ff8fffffffffffff (=55 bits) direct mapping of all phys. memory
-ff90000000000000 - ff91ffffffffffff (=49 bits) hole
-ff92000000000000 - ffd1ffffffffffff (=54 bits) vmalloc/ioremap space
+ff90000000000000 - ff9fffffffffffff (=52 bits) LDT remap for PTI
+ffa0000000000000 - ffd1ffffffffffff (=54 bits) vmalloc/ioremap space (12800 TB)
 ffd2000000000000 - ffd3ffffffffffff (=49 bits) hole
 ffd4000000000000 - ffd5ffffffffffff (=49 bits) virtual memory map (512TB)
 ... unused hole ...
 ffdf000000000000 - fffffc0000000000 (=53 bits) kasan shadow memory (8PB)
 ... unused hole ...
+fffffe8000000000 - fffffeffffffffff (=39 bits) cpu_entry_area mapping
 ffffff0000000000 - ffffff7fffffffff (=39 bits) %esp fixup stacks
 ... unused hole ...
 ffffffef00000000 - fffffffeffffffff (=64 GB) EFI region mapping space
 ... unused hole ...
 ffffffff80000000 - ffffffff9fffffff (=512 MB)  kernel text mapping, from phys 0
-ffffffffa0000000 - ffffffffff5fffff (=1526 MB) module mapping space
-ffffffffff600000 - ffffffffffdfffff (=8 MB) vsyscalls
+ffffffffa0000000 - [fixmap start]   (~1526 MB) module mapping space
+[fixmap start]   - ffffffffff5fffff kernel-internal fixmap range
+ffffffffff600000 - ffffffffff600fff (=4 kB) legacy vsyscall ABI
 ffffffffffe00000 - ffffffffffffffff (=2 MB) unused hole
 
 Architecture defines a 64-bit virtual address. Implementations can support
 less. Currently supported are 48- and 57-bit virtual addresses. Bits 63
-through to the most-significant implemented bit are set to either all ones
-or all zero. This causes hole between user space and kernel addresses.
+through to the most-significant implemented bit are sign extended.
+This causes hole between user space and kernel addresses if you interpret them
+as unsigned.
 
 The direct mapping covers all memory in the system up to the highest
 memory address (this means in some cases it can also include PCI memory
@@ -58,9 +62,6 @@ vmalloc space is lazily synchronized into the different PML4/PML5 pages of
 the processes using the page fault handler, with init_top_pgt as
 reference.
 
-Current X86-64 implementations support up to 46 bits of address space (64 TB),
-which is our current limit. This expands into MBZ space in the page tables.
-
 We map EFI runtime services in the 'efi_pgd' PGD in a 64Gb large virtual
 memory window (this size is arbitrary, it can be raised later if needed).
 The mappings are not part of any other kernel PGD and are only available
@@ -72,5 +73,3 @@ following fixmap section.
 Note that if CONFIG_RANDOMIZE_MEMORY is enabled, the direct mapping of all
 physical memory, vmalloc/ioremap space and virtual memory map are randomized.
 Their order is preserved but their base will be offset early at boot time.
-
--Andi Kleen, Jul 2004
index 82ad0eabce4f3e3955dfab54c7df2cae03644268..b46c9cea5ae5b90227687436eb64130d05ae10ca 100644 (file)
@@ -2621,24 +2621,22 @@ F:      fs/bfs/
 F:     include/uapi/linux/bfs_fs.h
 
 BLACKFIN ARCHITECTURE
-M:     Steven Miao <realmz6@gmail.com>
 L:     adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
 T:     git git://git.code.sf.net/p/adi-linux/code
 W:     http://blackfin.uclinux.org
-S:     Supported
+S:     Orphan
 F:     arch/blackfin/
 
 BLACKFIN EMAC DRIVER
 L:     adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:     http://blackfin.uclinux.org
-S:     Supported
+S:     Orphan
 F:     drivers/net/ethernet/adi/
 
 BLACKFIN MEDIA DRIVER
-M:     Scott Jiang <scott.jiang.linux@gmail.com>
 L:     adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:     http://blackfin.uclinux.org/
-S:     Supported
+S:     Orphan
 F:     drivers/media/platform/blackfin/
 F:     drivers/media/i2c/adv7183*
 F:     drivers/media/i2c/vs6624*
@@ -2646,25 +2644,25 @@ F:      drivers/media/i2c/vs6624*
 BLACKFIN RTC DRIVER
 L:     adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:     http://blackfin.uclinux.org
-S:     Supported
+S:     Orphan
 F:     drivers/rtc/rtc-bfin.c
 
 BLACKFIN SDH DRIVER
 L:     adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:     http://blackfin.uclinux.org
-S:     Supported
+S:     Orphan
 F:     drivers/mmc/host/bfin_sdh.c
 
 BLACKFIN SERIAL DRIVER
 L:     adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:     http://blackfin.uclinux.org
-S:     Supported
+S:     Orphan
 F:     drivers/tty/serial/bfin_uart.c
 
 BLACKFIN WATCHDOG DRIVER
 L:     adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:     http://blackfin.uclinux.org
-S:     Supported
+S:     Orphan
 F:     drivers/watchdog/bfin_wdt.c
 
 BLINKM RGB LED DRIVER
@@ -5431,7 +5429,7 @@ F:        drivers/media/tuners/fc2580*
 
 FCOE SUBSYSTEM (libfc, libfcoe, fcoe)
 M:     Johannes Thumshirn <jth@kernel.org>
-L:     fcoe-devel@open-fcoe.org
+L:     linux-scsi@vger.kernel.org
 W:     www.Open-FCoE.org
 S:     Supported
 F:     drivers/scsi/libfc/
@@ -13117,6 +13115,7 @@ F:      drivers/dma/dw/
 
 SYNOPSYS DESIGNWARE ENTERPRISE ETHERNET DRIVER
 M:     Jie Deng <jiedeng@synopsys.com>
+M:     Jose Abreu <Jose.Abreu@synopsys.com>
 L:     netdev@vger.kernel.org
 S:     Supported
 F:     drivers/net/ethernet/synopsys/
@@ -13492,6 +13491,7 @@ M:      Mika Westerberg <mika.westerberg@linux.intel.com>
 M:     Yehezkel Bernat <yehezkel.bernat@intel.com>
 T:     git git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt.git
 S:     Maintained
+F:     Documentation/admin-guide/thunderbolt.rst
 F:     drivers/thunderbolt/
 F:     include/linux/thunderbolt.h
 
index 3f4d157add54018fbea707a8129f2326b463dec6..eb1f5973813e0f0cdab86292e977d5d011d9bd55 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@
 VERSION = 4
 PATCHLEVEL = 15
 SUBLEVEL = 0
-EXTRAVERSION = -rc3
+EXTRAVERSION = -rc6
 NAME = Fearless Coyote
 
 # *DOCUMENTATION*
@@ -789,6 +789,9 @@ KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign)
 # disable invalid "can't wrap" optimizations for signed / pointers
 KBUILD_CFLAGS  += $(call cc-option,-fno-strict-overflow)
 
+# Make sure -fstack-check isn't enabled (like gentoo apparently did)
+KBUILD_CFLAGS  += $(call cc-option,-fno-stack-check,)
+
 # conserve stack if available
 KBUILD_CFLAGS   += $(call cc-option,-fconserve-stack)
 
index 45d815a86d420b9f8f108919bb846f865f9b5231..de08d9045cb85bd83884b8a7c05d78296034a94b 100644 (file)
                                compatible = "aspeed,ast2400-vuart";
                                reg = <0x1e787000 0x40>;
                                reg-shift = <2>;
-                               interrupts = <10>;
+                               interrupts = <8>;
                                clocks = <&clk_uart>;
                                no-loopback-test;
                                status = "disabled";
index 5f29010cdbd8129d57bd2141164f4fdd4e58cc5b..9b82cc8843e1af8df22ee12d4146cd87c725c563 100644 (file)
        jc42@18 {
                compatible = "nxp,se97b", "jedec,jc-42.4-temp";
                reg = <0x18>;
+               smbus-timeout-disable;
        };
 
        dpot: mcp4651-104@28 {
index 413dbd5d9f6442b8dae4b7f132b35e5f816cf798..81942ae83e1f9c9f717dd0fd565a28966c44c1da 100644 (file)
         */
        battery {
                pinctrl-names = "default";
-               pintctrl-0 = <&battery_pins>;
+               pinctrl-0 = <&battery_pins>;
                compatible = "lego,ev3-battery";
                io-channels = <&adc 4>, <&adc 3>;
                io-channel-names = "voltage", "current";
        batt_volt_en {
                gpio-hog;
                gpios = <6 GPIO_ACTIVE_HIGH>;
-               output-low;
+               output-high;
        };
 };
 
index b2b95ff205e81ba9248f3f29416001459e3c3d77..0029ec27819ca361024bfdaccb43b1faededa600 100644 (file)
        status = "okay";
 };
 
+&mixer {
+       status = "okay";
+};
+
 /* eMMC flash */
 &mmc_0 {
        status = "okay";
index 940875316d0f3926b39ea0717e560288f8594084..67b4de0e343921fda48d7e94b228732fe2d0131d 100644 (file)
                                reg = <0x2a>;
                                VDDA-supply = <&reg_3p3v>;
                                VDDIO-supply = <&reg_3p3v>;
-                               clocks = <&sys_mclk 1>;
+                               clocks = <&sys_mclk>;
                        };
                };
        };
index a8b148ad1dd2c37076a6a89d7c02498064fabc15..44715c8ef756b9f44bdc7a7c69b0cdc12c26d93d 100644 (file)
                reg = <0x0a>;
                VDDA-supply = <&reg_3p3v>;
                VDDIO-supply = <&reg_3p3v>;
-               clocks = <&sys_mclk 1>;
+               clocks = <&sys_mclk>;
        };
 };
 
index c6d92c25df42d5a673e991df58f86f566df73679..d23ee6d911acf55cb9330b66330966c33816ac7f 100644 (file)
        };
 };
 
+&cpu0 {
+       cpu0-supply = <&vdd_arm>;
+};
+
 &i2c1 {
        status = "okay";
        clock-frequency = <400000>;
index cd24894ee5c6b14deab21c543bad7c62ec34c93d..6102e4e7f35c15bcb809152453ef3ed82dd579d7 100644 (file)
        iep_mmu: iommu@ff900800 {
                compatible = "rockchip,iommu";
                reg = <0x0 0xff900800 0x0 0x40>;
-               interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH 0>;
+               interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
                interrupt-names = "iep_mmu";
                #iommu-cells = <0>;
                status = "disabled";
index b91300d49a31081269789a6e7437e6d707a8a6f4..5840f5c75c3b388d47242c53aa0c0f7fbe3e3a68 100644 (file)
                        reg = <0x01c16000 0x1000>;
                        interrupts = <58>;
                        clocks = <&ccu CLK_AHB_HDMI0>, <&ccu CLK_HDMI>,
-                                <&ccu 9>,
-                                <&ccu 18>;
+                                <&ccu CLK_PLL_VIDEO0_2X>,
+                                <&ccu CLK_PLL_VIDEO1_2X>;
                        clock-names = "ahb", "mod", "pll-0", "pll-1";
                        dmas = <&dma SUN4I_DMA_NORMAL 16>,
                               <&dma SUN4I_DMA_NORMAL 16>,
index 6ae4d95e230e58a468c908d85c2cfaf8d87894a0..316cb8b2945b114224d2c75ffa65a3d6a07f3300 100644 (file)
@@ -82,8 +82,8 @@
                        reg = <0x01c16000 0x1000>;
                        interrupts = <58>;
                        clocks = <&ccu CLK_AHB_HDMI>, <&ccu CLK_HDMI>,
-                                <&ccu 9>,
-                                <&ccu 16>;
+                                <&ccu CLK_PLL_VIDEO0_2X>,
+                                <&ccu CLK_PLL_VIDEO1_2X>;
                        clock-names = "ahb", "mod", "pll-0", "pll-1";
                        dmas = <&dma SUN4I_DMA_NORMAL 16>,
                               <&dma SUN4I_DMA_NORMAL 16>,
index 8bfa12b548e0a2acf8f285505cd3699e27519e86..72d3fe44ecaf0d53f16b28b6433e9853d1a13c2f 100644 (file)
                        interrupts = <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>;
                        clocks = <&ccu CLK_AHB1_HDMI>, <&ccu CLK_HDMI>,
                                 <&ccu CLK_HDMI_DDC>,
-                                <&ccu 7>,
-                                <&ccu 13>;
+                                <&ccu CLK_PLL_VIDEO0_2X>,
+                                <&ccu CLK_PLL_VIDEO1_2X>;
                        clock-names = "ahb", "mod", "ddc", "pll-0", "pll-1";
                        resets = <&ccu RST_AHB1_HDMI>;
                        reset-names = "ahb";
index 68dfa82544fc4c574916c3d60c17a60097ddb2b1..59655e42e4b09a75edc0b285e2c18fd4926e21aa 100644 (file)
                        reg = <0x01c16000 0x1000>;
                        interrupts = <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>;
                        clocks = <&ccu CLK_AHB_HDMI0>, <&ccu CLK_HDMI>,
-                                <&ccu 9>,
-                                <&ccu 18>;
+                                <&ccu CLK_PLL_VIDEO0_2X>,
+                                <&ccu CLK_PLL_VIDEO1_2X>;
                        clock-names = "ahb", "mod", "pll-0", "pll-1";
                        dmas = <&dma SUN4I_DMA_NORMAL 16>,
                               <&dma SUN4I_DMA_NORMAL 16>,
index 98715538932f10bd048b355b4f7bb5bfc183a7cd..a021ee6da3968c252a02aefb29c3b99a2e13a096 100644 (file)
        status = "okay";
 
        axp81x: pmic@3a3 {
+               compatible = "x-powers,axp813";
                reg = <0x3a3>;
                interrupt-parent = <&r_intc>;
                interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
index 0ec1b0a317b4c4631d4cfe5d9d451e9d16c697de..ff72a8efb73d05e3d219587654b96987ab1b31e5 100644 (file)
                        reg = <0x6e000 0x400>;
                        ranges = <0 0x6e000 0x400>;
                        interrupt-parent = <&gic>;
-                       interrupt-controller;
                        #address-cells = <1>;
                        #size-cells = <1>;
 
index fbb3758ca2e3e77d4a65e47bb9229429305a0015..4b8edc8982cf156931177b0ecce0f6b9329afce3 100644 (file)
                                        switch0port10: port@10 {
                                                reg = <10>;
                                                label = "dsa";
-                                               phy-mode = "xgmii";
+                                               phy-mode = "xaui";
                                                link = <&switch1port10>;
                                        };
                                };
                                        switch1port10: port@10 {
                                                reg = <10>;
                                                label = "dsa";
-                                               phy-mode = "xgmii";
+                                               phy-mode = "xaui";
                                                link = <&switch0port10>;
                                        };
                                };
index 5cf04888c581df4a21053a826f8a2fdd58204435..3e26c6f7a191a9621a5234598920bb43f260bbbb 100644 (file)
@@ -793,7 +793,6 @@ void abort(void)
        /* if that doesn't kill us, halt */
        panic("Oops failed to kill thread");
 }
-EXPORT_SYMBOL(abort);
 
 void __init trap_init(void)
 {
index 1712f132b80d2402d94d72ea974a0c3326fa2f52..b83fdc06286a64ece150fb7e419bc587e47c3e34 100644 (file)
                .pushsection .text.fixup,"ax"
                .align  4
 9001:          mov     r4, #-EFAULT
+#ifdef CONFIG_CPU_SW_DOMAIN_PAN
+               ldr     r5, [sp, #9*4]          @ *err_ptr
+#else
                ldr     r5, [sp, #8*4]          @ *err_ptr
+#endif
                str     r4, [r5]
                ldmia   sp, {r1, r2}            @ retrieve dst, len
                add     r2, r2, r1
index 8be04ec95adf5e4d0969c9c1cc1460e4e31c9caf..5ace9380626a0cc34f074e71a2981c8c42e87c50 100644 (file)
@@ -868,10 +868,10 @@ static const struct dma_slave_map dm365_edma_map[] = {
        { "spi_davinci.0", "rx", EDMA_FILTER_PARAM(0, 17) },
        { "spi_davinci.3", "tx", EDMA_FILTER_PARAM(0, 18) },
        { "spi_davinci.3", "rx", EDMA_FILTER_PARAM(0, 19) },
-       { "dm6441-mmc.0", "rx", EDMA_FILTER_PARAM(0, 26) },
-       { "dm6441-mmc.0", "tx", EDMA_FILTER_PARAM(0, 27) },
-       { "dm6441-mmc.1", "rx", EDMA_FILTER_PARAM(0, 30) },
-       { "dm6441-mmc.1", "tx", EDMA_FILTER_PARAM(0, 31) },
+       { "da830-mmc.0", "rx", EDMA_FILTER_PARAM(0, 26) },
+       { "da830-mmc.0", "tx", EDMA_FILTER_PARAM(0, 27) },
+       { "da830-mmc.1", "rx", EDMA_FILTER_PARAM(0, 30) },
+       { "da830-mmc.1", "tx", EDMA_FILTER_PARAM(0, 31) },
 };
 
 static struct edma_soc_info dm365_edma_pdata = {
@@ -925,12 +925,14 @@ static struct resource edma_resources[] = {
        /* not using TC*_ERR */
 };
 
-static struct platform_device dm365_edma_device = {
-       .name                   = "edma",
-       .id                     = 0,
-       .dev.platform_data      = &dm365_edma_pdata,
-       .num_resources          = ARRAY_SIZE(edma_resources),
-       .resource               = edma_resources,
+static const struct platform_device_info dm365_edma_device __initconst = {
+       .name           = "edma",
+       .id             = 0,
+       .dma_mask       = DMA_BIT_MASK(32),
+       .res            = edma_resources,
+       .num_res        = ARRAY_SIZE(edma_resources),
+       .data           = &dm365_edma_pdata,
+       .size_data      = sizeof(dm365_edma_pdata),
 };
 
 static struct resource dm365_asp_resources[] = {
@@ -1428,13 +1430,18 @@ int __init dm365_init_video(struct vpfe_config *vpfe_cfg,
 
 static int __init dm365_init_devices(void)
 {
+       struct platform_device *edma_pdev;
        int ret = 0;
 
        if (!cpu_is_davinci_dm365())
                return 0;
 
        davinci_cfg_reg(DM365_INT_EDMA_CC);
-       platform_device_register(&dm365_edma_device);
+       edma_pdev = platform_device_register_full(&dm365_edma_device);
+       if (IS_ERR(edma_pdev)) {
+               pr_warn("%s: Failed to register eDMA\n", __func__);
+               return PTR_ERR(edma_pdev);
+       }
 
        platform_device_register(&dm365_mdio_device);
        platform_device_register(&dm365_emac_device);
index a93339f5178f2eff247144eb9244c077225094bc..c9a7e9e1414f344c9dfd515600e3e4378bf61d81 100644 (file)
@@ -557,7 +557,6 @@ config QCOM_QDF2400_ERRATUM_0065
 
          If unsure, say Y.
 
-
 config SOCIONEXT_SYNQUACER_PREITS
        bool "Socionext Synquacer: Workaround for GICv3 pre-ITS"
        default y
@@ -576,6 +575,17 @@ config HISILICON_ERRATUM_161600802
          a 128kB offset to be applied to the target address in this commands.
 
          If unsure, say Y.
+
+config QCOM_FALKOR_ERRATUM_E1041
+       bool "Falkor E1041: Speculative instruction fetches might cause errant memory access"
+       default y
+       help
+         Falkor CPU may speculatively fetch instructions from an improper
+         memory location when MMU translation is changed from SCTLR_ELn[M]=1
+         to SCTLR_ELn[M]=0. Prefix an ISB instruction to fix the problem.
+
+         If unsure, say Y.
+
 endmenu
 
 
index 45bdbfb961261becf2fb940fb9da19ee0f99560a..4a8d3f83a36eabc50134577306c06febffb9bed8 100644 (file)
@@ -75,6 +75,7 @@
        pinctrl-0 = <&rgmii_pins>;
        phy-mode = "rgmii";
        phy-handle = <&ext_rgmii_phy>;
+       phy-supply = <&reg_dc1sw>;
        status = "okay";
 };
 
index 806442d3e846881d01e3c971da41af1db869b14f..604cdaedac38eed479a8f24a88efbc4fddc2676e 100644 (file)
@@ -77,6 +77,7 @@
        pinctrl-0 = <&rmii_pins>;
        phy-mode = "rmii";
        phy-handle = <&ext_rmii_phy1>;
+       phy-supply = <&reg_dc1sw>;
        status = "okay";
 
 };
index 0eb2acedf8c3bc5ff2b4bbde4cddfde4d8c204ad..abe179de35d780cc1d3691394d465817dad30549 100644 (file)
@@ -82,6 +82,7 @@
        pinctrl-0 = <&rgmii_pins>;
        phy-mode = "rgmii";
        phy-handle = <&ext_rgmii_phy>;
+       phy-supply = <&reg_dc1sw>;
        status = "okay";
 };
 
@@ -95,7 +96,7 @@
 &mmc2 {
        pinctrl-names = "default";
        pinctrl-0 = <&mmc2_pins>;
-       vmmc-supply = <&reg_vcc3v3>;
+       vmmc-supply = <&reg_dcdc1>;
        vqmmc-supply = <&reg_vcc1v8>;
        bus-width = <8>;
        non-removable;
index a5da18a6f2866d34537c55dcc5d3288daf6c8331..43418bd881d81e73da7634fa6ff62c11d64b65ef 100644 (file)
 
 #include "sun50i-a64.dtsi"
 
-/ {
-       reg_vcc3v3: vcc3v3 {
-               compatible = "regulator-fixed";
-               regulator-name = "vcc3v3";
-               regulator-min-microvolt = <3300000>;
-               regulator-max-microvolt = <3300000>;
-       };
-};
-
 &mmc0 {
        pinctrl-names = "default";
        pinctrl-0 = <&mmc0_pins>;
-       vmmc-supply = <&reg_vcc3v3>;
+       vmmc-supply = <&reg_dcdc1>;
        non-removable;
        disable-wp;
        bus-width = <4>;
index b6b7a561df8c91d90c57bd2d36cbaba37283bb02..a42fd79a62a30695221375b9a18d0209c29d73dd 100644 (file)
@@ -71,7 +71,7 @@
        pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin>;
        vmmc-supply = <&reg_vcc3v3>;
        bus-width = <4>;
-       cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>;
+       cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>;
        status = "okay";
 };
 
index a298df74ca6c037f373f78f5fd310a4d8e8c0e64..dbe2648649db1e1f74bfb7b2bc97f9765658f7d9 100644 (file)
 &avb {
        pinctrl-0 = <&avb_pins>;
        pinctrl-names = "default";
-       renesas,no-ether-link;
        phy-handle = <&phy0>;
        status = "okay";
 
index 0d85b315ce711c8f0d896d7861204036ce9b0ec3..73439cf4865964016c14d2237c2f504d3ddfa430 100644 (file)
 &avb {
        pinctrl-0 = <&avb_pins>;
        pinctrl-names = "default";
-       renesas,no-ether-link;
        phy-handle = <&phy0>;
        status = "okay";
 
index d4f80786e7c20c0a46bacb9636f8defc7ef137b4..3890468678ce1caa78a411aeb0a4a9cdedfc1302 100644 (file)
        assigned-clocks = <&cru SCLK_MAC2IO>, <&cru SCLK_MAC2IO_EXT>;
        assigned-clock-parents = <&gmac_clkin>, <&gmac_clkin>;
        clock_in_out = "input";
+       /* shows instability at 1GBit right now */
+       max-speed = <100>;
        phy-supply = <&vcc_io>;
        phy-mode = "rgmii";
        pinctrl-names = "default";
index 41d61840fb99ce52ec553c94e119ab63bb79cdbe..2426da6319382dbcab52f286860aabd8651087cd 100644 (file)
        tsadc: tsadc@ff250000 {
                compatible = "rockchip,rk3328-tsadc";
                reg = <0x0 0xff250000 0x0 0x100>;
-               interrupts = <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH 0>;
+               interrupts = <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>;
                assigned-clocks = <&cru SCLK_TSADC>;
                assigned-clock-rates = <50000>;
                clocks = <&cru SCLK_TSADC>, <&cru PCLK_TSADC>;
index 910628d18add07d9a39974bc6ce2ac4a403adb81..1fc5060d7027e6e4b852c6cd71d430d2e7ab3990 100644 (file)
                regulator-min-microvolt = <5000000>;
                regulator-max-microvolt = <5000000>;
        };
-
-       vdd_log: vdd-log {
-               compatible = "pwm-regulator";
-               pwms = <&pwm2 0 25000 0>;
-               regulator-name = "vdd_log";
-               regulator-min-microvolt = <800000>;
-               regulator-max-microvolt = <1400000>;
-               regulator-always-on;
-               regulator-boot-on;
-               status = "okay";
-       };
 };
 
 &cpu_b0 {
index 48e733136db4580ffd06963f622b7ce7ada92d61..0ac2ace824350185c0e53369b6702875f1274ea0 100644 (file)
                        gpio-controller;
                        #gpio-cells = <2>;
                        gpio-ranges = <&pinctrl 0 0 0>,
-                                     <&pinctrl 96 0 0>,
-                                     <&pinctrl 160 0 0>;
+                                     <&pinctrl 104 0 0>,
+                                     <&pinctrl 168 0 0>;
                        gpio-ranges-group-names = "gpio_range0",
                                                  "gpio_range1",
                                                  "gpio_range2";
index aef72d886677758c76d6b932c863893df7c67b53..8b168280976f25de43539ed1b4dbed9b952fcfde 100644 (file)
@@ -512,4 +512,14 @@ alternative_else_nop_endif
 #endif
        .endm
 
+/**
+ * Errata workaround prior to disable MMU. Insert an ISB immediately prior
+ * to executing the MSR that will change SCTLR_ELn[M] from a value of 1 to 0.
+ */
+       .macro pre_disable_mmu_workaround
+#ifdef CONFIG_QCOM_FALKOR_ERRATUM_E1041
+       isb
+#endif
+       .endm
+
 #endif /* __ASM_ASSEMBLER_H */
index ac67cfc2585a8af417405958779b792d60b06e6a..060e3a4008abd18e4a5aa48bb5b6fa1674a735c3 100644 (file)
@@ -60,6 +60,9 @@ enum ftr_type {
 #define FTR_VISIBLE    true    /* Feature visible to the user space */
 #define FTR_HIDDEN     false   /* Feature is hidden from the user */
 
+#define FTR_VISIBLE_IF_IS_ENABLED(config)              \
+       (IS_ENABLED(config) ? FTR_VISIBLE : FTR_HIDDEN)
+
 struct arm64_ftr_bits {
        bool            sign;   /* Value is signed ? */
        bool            visible;
index 235e77d982610a0114f62cc833278994cc2e76b2..cbf08d7cbf3089949bb4ada755a36383e6e5db2e 100644 (file)
@@ -91,6 +91,7 @@
 #define BRCM_CPU_PART_VULCAN           0x516
 
 #define QCOM_CPU_PART_FALKOR_V1                0x800
+#define QCOM_CPU_PART_FALKOR           0xC00
 
 #define MIDR_CORTEX_A53 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A53)
 #define MIDR_CORTEX_A57 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A57)
 #define MIDR_THUNDERX_81XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_81XX)
 #define MIDR_THUNDERX_83XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_83XX)
 #define MIDR_QCOM_FALKOR_V1 MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_FALKOR_V1)
+#define MIDR_QCOM_FALKOR MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_FALKOR)
 
 #ifndef __ASSEMBLY__
 
index 149d05fb9421520bd659b62627941ed36ce46bb3..bdcc7f1c9d069df3d95c6884b8071cdba530cfc8 100644 (file)
@@ -42,6 +42,8 @@
 #include <asm/cmpxchg.h>
 #include <asm/fixmap.h>
 #include <linux/mmdebug.h>
+#include <linux/mm_types.h>
+#include <linux/sched.h>
 
 extern void __pte_error(const char *file, int line, unsigned long val);
 extern void __pmd_error(const char *file, int line, unsigned long val);
@@ -149,12 +151,20 @@ static inline pte_t pte_mkwrite(pte_t pte)
 
 static inline pte_t pte_mkclean(pte_t pte)
 {
-       return clear_pte_bit(pte, __pgprot(PTE_DIRTY));
+       pte = clear_pte_bit(pte, __pgprot(PTE_DIRTY));
+       pte = set_pte_bit(pte, __pgprot(PTE_RDONLY));
+
+       return pte;
 }
 
 static inline pte_t pte_mkdirty(pte_t pte)
 {
-       return set_pte_bit(pte, __pgprot(PTE_DIRTY));
+       pte = set_pte_bit(pte, __pgprot(PTE_DIRTY));
+
+       if (pte_write(pte))
+               pte = clear_pte_bit(pte, __pgprot(PTE_RDONLY));
+
+       return pte;
 }
 
 static inline pte_t pte_mkold(pte_t pte)
@@ -207,9 +217,6 @@ static inline void set_pte(pte_t *ptep, pte_t pte)
        }
 }
 
-struct mm_struct;
-struct vm_area_struct;
-
 extern void __sync_icache_dcache(pte_t pteval, unsigned long addr);
 
 /*
@@ -238,7 +245,8 @@ static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
         * hardware updates of the pte (ptep_set_access_flags safely changes
         * valid ptes without going through an invalid entry).
         */
-       if (pte_valid(*ptep) && pte_valid(pte)) {
+       if (IS_ENABLED(CONFIG_DEBUG_VM) && pte_valid(*ptep) && pte_valid(pte) &&
+          (mm == current->active_mm || atomic_read(&mm->mm_users) > 1)) {
                VM_WARN_ONCE(!pte_young(pte),
                             "%s: racy access flag clearing: 0x%016llx -> 0x%016llx",
                             __func__, pte_val(*ptep), pte_val(pte));
@@ -641,28 +649,23 @@ static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm,
 #endif /* CONFIG_TRANSPARENT_HUGEPAGE */
 
 /*
- * ptep_set_wrprotect - mark read-only while preserving the hardware update of
- * the Access Flag.
+ * ptep_set_wrprotect - mark read-only while trasferring potential hardware
+ * dirty status (PTE_DBM && !PTE_RDONLY) to the software PTE_DIRTY bit.
  */
 #define __HAVE_ARCH_PTEP_SET_WRPROTECT
 static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long address, pte_t *ptep)
 {
        pte_t old_pte, pte;
 
-       /*
-        * ptep_set_wrprotect() is only called on CoW mappings which are
-        * private (!VM_SHARED) with the pte either read-only (!PTE_WRITE &&
-        * PTE_RDONLY) or writable and software-dirty (PTE_WRITE &&
-        * !PTE_RDONLY && PTE_DIRTY); see is_cow_mapping() and
-        * protection_map[]. There is no race with the hardware update of the
-        * dirty state: clearing of PTE_RDONLY when PTE_WRITE (a.k.a. PTE_DBM)
-        * is set.
-        */
-       VM_WARN_ONCE(pte_write(*ptep) && !pte_dirty(*ptep),
-                    "%s: potential race with hardware DBM", __func__);
        pte = READ_ONCE(*ptep);
        do {
                old_pte = pte;
+               /*
+                * If hardware-dirty (PTE_WRITE/DBM bit set and PTE_RDONLY
+                * clear), set the PTE_DIRTY bit.
+                */
+               if (pte_hw_dirty(pte))
+                       pte = pte_mkdirty(pte);
                pte = pte_wrprotect(pte);
                pte_val(pte) = cmpxchg_relaxed(&pte_val(*ptep),
                                               pte_val(old_pte), pte_val(pte));
index 65f42d2574142d4b37bebf49ed1fc3cdccbb56ae..2a752cb2a0f35a82f2a60e744d160af9b5f6c6a1 100644 (file)
@@ -37,6 +37,7 @@ ENTRY(__cpu_soft_restart)
        mrs     x12, sctlr_el1
        ldr     x13, =SCTLR_ELx_FLAGS
        bic     x12, x12, x13
+       pre_disable_mmu_workaround
        msr     sctlr_el1, x12
        isb
 
index c5ba0097887f93e9d30b37355b84e5750d74d04e..a73a5928f09b26ae7b2de7b3c2217e5c975de4a0 100644 (file)
@@ -145,7 +145,8 @@ static const struct arm64_ftr_bits ftr_id_aa64isar1[] = {
 };
 
 static const struct arm64_ftr_bits ftr_id_aa64pfr0[] = {
-       ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64PFR0_SVE_SHIFT, 4, 0),
+       ARM64_FTR_BITS(FTR_VISIBLE_IF_IS_ENABLED(CONFIG_ARM64_SVE),
+                                  FTR_STRICT, FTR_LOWER_SAFE, ID_AA64PFR0_SVE_SHIFT, 4, 0),
        ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64PFR0_GIC_SHIFT, 4, 0),
        S_ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64PFR0_ASIMD_SHIFT, 4, ID_AA64PFR0_ASIMD_NI),
        S_ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64PFR0_FP_SHIFT, 4, ID_AA64PFR0_FP_NI),
index 4e6ad355bd058e6a4ab73a0f94832a7b1fe719a6..6b9736c3fb5630ab31c17b662b5c5cfe2b7d0832 100644 (file)
@@ -96,6 +96,7 @@ ENTRY(entry)
        mrs     x0, sctlr_el2
        bic     x0, x0, #1 << 0 // clear SCTLR.M
        bic     x0, x0, #1 << 2 // clear SCTLR.C
+       pre_disable_mmu_workaround
        msr     sctlr_el2, x0
        isb
        b       2f
@@ -103,6 +104,7 @@ ENTRY(entry)
        mrs     x0, sctlr_el1
        bic     x0, x0, #1 << 0 // clear SCTLR.M
        bic     x0, x0, #1 << 2 // clear SCTLR.C
+       pre_disable_mmu_workaround
        msr     sctlr_el1, x0
        isb
 2:
index 540a1e010eb519a6223e091d5f9f00b716fc2c7b..fae81f7964b4f226242961607cb087a20710e22b 100644 (file)
@@ -1043,7 +1043,7 @@ void fpsimd_update_current_state(struct fpsimd_state *state)
 
        local_bh_disable();
 
-       current->thread.fpsimd_state = *state;
+       current->thread.fpsimd_state.user_fpsimd = state->user_fpsimd;
        if (system_supports_sve() && test_thread_flag(TIF_SVE))
                fpsimd_to_sve(current);
 
index 67e86a0f57ac43edcee10d89bd5db2e050ae1621..e3cb9fbf96b66c3ba2d4327d4c1a4b3ca734ef1f 100644 (file)
@@ -750,6 +750,7 @@ __primary_switch:
         * to take into account by discarding the current kernel mapping and
         * creating a new one.
         */
+       pre_disable_mmu_workaround
        msr     sctlr_el1, x20                  // disable the MMU
        isb
        bl      __create_page_tables            // recreate kernel mapping
index 749f81779420c7bab2ead0d8f5b9a6cf108e6a45..74bb56f656eff024839df19897ba06512128e9bb 100644 (file)
@@ -28,6 +28,7 @@
 #include <linux/perf_event.h>
 #include <linux/ptrace.h>
 #include <linux/smp.h>
+#include <linux/uaccess.h>
 
 #include <asm/compat.h>
 #include <asm/current.h>
@@ -36,7 +37,6 @@
 #include <asm/traps.h>
 #include <asm/cputype.h>
 #include <asm/system_misc.h>
-#include <asm/uaccess.h>
 
 /* Breakpoint currently in use for each BRP. */
 static DEFINE_PER_CPU(struct perf_event *, bp_on_reg[ARM_MAX_BRP]);
index ce704a4aeadd438bf637472bb7037b89fba15087..f407e422a7200b86072349cc70e1e6d5e7e1753b 100644 (file)
@@ -45,6 +45,7 @@ ENTRY(arm64_relocate_new_kernel)
        mrs     x0, sctlr_el2
        ldr     x1, =SCTLR_ELx_FLAGS
        bic     x0, x0, x1
+       pre_disable_mmu_workaround
        msr     sctlr_el2, x0
        isb
 1:
index 3f9615582377661a88fab8be6a12365d625d830a..870828c364c508f825eacc1c49c17886dc9c8cb2 100644 (file)
@@ -151,6 +151,7 @@ reset:
        mrs     x5, sctlr_el2
        ldr     x6, =SCTLR_ELx_FLAGS
        bic     x5, x5, x6              // Clear SCTL_M and etc
+       pre_disable_mmu_workaround
        msr     sctlr_el2, x5
        isb
 
index 321c9c05dd9e09fc0c745a4543a286b7628f00a4..f4363d40e2cd7fd62d40d826d5296c95f15cde9f 100644 (file)
@@ -74,6 +74,9 @@ static void __hyp_text __debug_save_spe_nvhe(u64 *pmscr_el1)
 {
        u64 reg;
 
+       /* Clear pmscr in case of early return */
+       *pmscr_el1 = 0;
+
        /* SPE present on this CPU? */
        if (!cpuid_feature_extract_unsigned_field(read_sysreg(id_aa64dfr0_el1),
                                                  ID_AA64DFR0_PMSVER_SHIFT))
index ca74a2aace425b95ed95ecf0e70a78188621004e..7b60d62ac5939e83c8e153ec1c3a0447565f23eb 100644 (file)
@@ -389,7 +389,7 @@ void ptdump_check_wx(void)
                .check_wx = true,
        };
 
-       walk_pgd(&st, &init_mm, 0);
+       walk_pgd(&st, &init_mm, VA_START);
        note_page(&st, 0, 0, 0);
        if (st.wx_pages || st.uxn_pages)
                pr_warn("Checked W+X mappings: FAILED, %lu W+X pages found, %lu non-UXN pages found\n",
index 22168cd0dde73e06698bc40b166867df17a00134..9b7f89df49dbfe108da2eadc59421ce99a4432b4 100644 (file)
@@ -574,7 +574,6 @@ static int do_sea(unsigned long addr, unsigned int esr, struct pt_regs *regs)
 {
        struct siginfo info;
        const struct fault_info *inf;
-       int ret = 0;
 
        inf = esr_to_fault_info(esr);
        pr_err("Synchronous External Abort: %s (0x%08x) at 0x%016lx\n",
@@ -589,7 +588,7 @@ static int do_sea(unsigned long addr, unsigned int esr, struct pt_regs *regs)
                if (interrupts_enabled(regs))
                        nmi_enter();
 
-               ret = ghes_notify_sea();
+               ghes_notify_sea();
 
                if (interrupts_enabled(regs))
                        nmi_exit();
@@ -604,7 +603,7 @@ static int do_sea(unsigned long addr, unsigned int esr, struct pt_regs *regs)
                info.si_addr  = (void __user *)addr;
        arm64_notify_die("", regs, &info, esr);
 
-       return ret;
+       return 0;
 }
 
 static const struct fault_info fault_info[] = {
index 5960bef0170df85916d0c1ac3b65f570f0af67ea..00e7b900ca4193e83dfa7de7dd506984afe90bce 100644 (file)
@@ -476,6 +476,8 @@ void __init arm64_memblock_init(void)
 
        reserve_elfcorehdr();
 
+       high_memory = __va(memblock_end_of_DRAM() - 1) + 1;
+
        dma_contiguous_reserve(arm64_dma_phys_limit);
 
        memblock_allow_resize();
@@ -502,7 +504,6 @@ void __init bootmem_init(void)
        sparse_init();
        zone_sizes_init(min, max);
 
-       high_memory = __va((max << PAGE_SHIFT) - 1) + 1;
        memblock_dump_all();
 }
 
index cb79fba79d4391dbe07cd517309f77cbc5b05506..b88a8dd149333d0a0227c28762ca904fbe268ed2 100644 (file)
@@ -122,7 +122,6 @@ void abort(void)
        /* if that doesn't kill us, halt */
        panic("Oops failed to kill thread");
 }
-EXPORT_SYMBOL(abort);
 
 void __init trap_init(void)
 {
index 9345b44b86f036572e33721eb80e9bbbe4493aa4..f57118e1f6b4265257799ae2cf8ea356077e20b9 100644 (file)
@@ -123,8 +123,8 @@ int puts(const char *s)
        while ((nuline = strchr(s, '\n')) != NULL) {
                if (nuline != s)
                        pdc_iodc_print(s, nuline - s);
-                       pdc_iodc_print("\r\n", 2);
-                       s = nuline + 1;
+               pdc_iodc_print("\r\n", 2);
+               s = nuline + 1;
        }
        if (*s != '\0')
                pdc_iodc_print(s, strlen(s));
index c980a02a52bc0dda0a23b205f59d1d86438553f2..598c8d60fa5e602cc9303e1986ada9680d64feb3 100644 (file)
@@ -35,7 +35,12 @@ struct thread_info {
 
 /* thread information allocation */
 
+#ifdef CONFIG_IRQSTACKS
+#define THREAD_SIZE_ORDER      2 /* PA-RISC requires at least 16k stack */
+#else
 #define THREAD_SIZE_ORDER      3 /* PA-RISC requires at least 32k stack */
+#endif
+
 /* Be sure to hunt all references to this down when you change the size of
  * the kernel stack */
 #define THREAD_SIZE             (PAGE_SIZE << THREAD_SIZE_ORDER)
index a4fd296c958e8e14f13a913aca50510b11eb49b7..f3cecf5117cf8ab14724f0ea3535220c3224d569 100644 (file)
@@ -878,9 +878,6 @@ ENTRY_CFI(syscall_exit_rfi)
        STREG   %r19,PT_SR7(%r16)
 
 intr_return:
-       /* NOTE: Need to enable interrupts incase we schedule. */
-       ssm     PSW_SM_I, %r0
-
        /* check for reschedule */
        mfctl   %cr30,%r1
        LDREG   TI_FLAGS(%r1),%r19      /* sched.h: TIF_NEED_RESCHED */
@@ -907,6 +904,11 @@ intr_check_sig:
        LDREG   PT_IASQ1(%r16), %r20
        cmpib,COND(=),n 0,%r20,intr_restore /* backward */
 
+       /* NOTE: We need to enable interrupts if we have to deliver
+        * signals. We used to do this earlier but it caused kernel
+        * stack overflows. */
+       ssm     PSW_SM_I, %r0
+
        copy    %r0, %r25                       /* long in_syscall = 0 */
 #ifdef CONFIG_64BIT
        ldo     -16(%r30),%r29                  /* Reference param save area */
@@ -958,6 +960,10 @@ intr_do_resched:
        cmpib,COND(=)   0, %r20, intr_do_preempt
        nop
 
+       /* NOTE: We need to enable interrupts if we schedule.  We used
+        * to do this earlier but it caused kernel stack overflows. */
+       ssm     PSW_SM_I, %r0
+
 #ifdef CONFIG_64BIT
        ldo     -16(%r30),%r29          /* Reference param save area */
 #endif
index e3a8e5e4d5de75897adcea4134f87c7246f60646..8d072c44f300c16d45ba8f4ee0c2eee6435e4ddd 100644 (file)
@@ -305,6 +305,7 @@ ENDPROC_CFI(os_hpmc)
 
 
        __INITRODATA
+       .align 4
        .export os_hpmc_size
 os_hpmc_size:
        .word .os_hpmc_end-.os_hpmc
index 5a657986ebbf4bef7beff4e8c8d20f1343872347..143f90e2f9f3c631616d4af52f0fe3fa08f44af9 100644 (file)
@@ -15,7 +15,6 @@
 #include <linux/slab.h>
 #include <linux/kallsyms.h>
 #include <linux/sort.h>
-#include <linux/sched.h>
 
 #include <linux/uaccess.h>
 #include <asm/assembly.h>
index 7eab4bb8abe630b14c54c3b457285b4228607dc6..66e506520505d8a3245d49d492831df5e3bbb42a 100644 (file)
@@ -16,9 +16,7 @@
 #include <linux/preempt.h>
 #include <linux/init.h>
 
-#include <asm/processor.h>
 #include <asm/delay.h>
-
 #include <asm/special_insns.h>    /* for mfctl() */
 #include <asm/processor.h> /* for boot_cpu_data */
 
index 6177d43f0ce8afa9c1f6a1101e92ba161e47d97a..e2a2b8400490049143edee40316313a906ca6db7 100644 (file)
@@ -160,9 +160,10 @@ static inline void enter_lazy_tlb(struct mm_struct *mm,
 #endif
 }
 
-static inline void arch_dup_mmap(struct mm_struct *oldmm,
-                                struct mm_struct *mm)
+static inline int arch_dup_mmap(struct mm_struct *oldmm,
+                               struct mm_struct *mm)
 {
+       return 0;
 }
 
 #ifndef CONFIG_PPC_BOOK3S_64
index 5acb5a176dbe5c8bffe6ddb7458b7d3ac2b7019f..72be0c32e902a35fa45e5ed02036df91999dda58 100644 (file)
@@ -1403,7 +1403,7 @@ void show_regs(struct pt_regs * regs)
 
        printk("NIP:  "REG" LR: "REG" CTR: "REG"\n",
               regs->nip, regs->link, regs->ctr);
-       printk("REGS: %p TRAP: %04lx   %s  (%s)\n",
+       printk("REGS: %px TRAP: %04lx   %s  (%s)\n",
               regs, regs->trap, print_tainted(), init_utsname()->release);
        printk("MSR:  "REG" ", regs->msr);
        print_msr_bits(regs->msr);
index bf457843e03217b9aa02815d7791f0fce72aea2b..0d750d274c4e21a3324eb3505bbd73c86a58cdc9 100644 (file)
@@ -725,7 +725,8 @@ u64 kvmppc_xive_get_icp(struct kvm_vcpu *vcpu)
 
        /* Return the per-cpu state for state saving/migration */
        return (u64)xc->cppr << KVM_REG_PPC_ICP_CPPR_SHIFT |
-              (u64)xc->mfrr << KVM_REG_PPC_ICP_MFRR_SHIFT;
+              (u64)xc->mfrr << KVM_REG_PPC_ICP_MFRR_SHIFT |
+              (u64)0xff << KVM_REG_PPC_ICP_PPRI_SHIFT;
 }
 
 int kvmppc_xive_set_icp(struct kvm_vcpu *vcpu, u64 icpval)
@@ -1558,7 +1559,7 @@ static int xive_set_source(struct kvmppc_xive *xive, long irq, u64 addr)
 
        /*
         * Restore P and Q. If the interrupt was pending, we
-        * force both P and Q, which will trigger a resend.
+        * force Q and !P, which will trigger a resend.
         *
         * That means that a guest that had both an interrupt
         * pending (queued) and Q set will restore with only
@@ -1566,7 +1567,7 @@ static int xive_set_source(struct kvmppc_xive *xive, long irq, u64 addr)
         * is perfectly fine as coalescing interrupts that haven't
         * been presented yet is always allowed.
         */
-       if (val & KVM_XICS_PRESENTED || val & KVM_XICS_PENDING)
+       if (val & KVM_XICS_PRESENTED && !(val & KVM_XICS_PENDING))
                state->old_p = true;
        if (val & KVM_XICS_QUEUED || val & KVM_XICS_PENDING)
                state->old_q = true;
index 46d74e81aff1b4caad4769e7686fa0a800695cd4..d183b4801bdbded832b90d2aa1a18e713f70695b 100644 (file)
@@ -763,7 +763,8 @@ emit_clear:
                        func = (u8 *) __bpf_call_base + imm;
 
                        /* Save skb pointer if we need to re-cache skb data */
-                       if (bpf_helper_changes_pkt_data(func))
+                       if ((ctx->seen & SEEN_SKB) &&
+                           bpf_helper_changes_pkt_data(func))
 &n