Patchwork [driver-core:driver-core-linus,6/6] fs/pstore/platform.o: In function `kmsg_dump_rewind': (.text+0x46): multiple definition of `kmsg_dump_rewind'

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Submitter Wu Fengguang
Date June 16, 2012, 12:03 a.m.
Message ID <4fdbcd43.YWyev1hTR27tPu9A%wfg@linux.intel.com>
Download mbox | patch
Permalink /patch/165239/
State New
Headers show

Comments

Wu Fengguang - June 16, 2012, 12:03 a.m.
Hi Kay,

Kernel build failed on

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git driver-core-linus
head:   e2ae715d66bf4becfb85eb84b7150e23cf27df30
commit: e2ae715d66bf4becfb85eb84b7150e23cf27df30 [6/6] kmsg - kmsg_dump() use iterator to receive log buffer content
config: i386-randconfig-usb2 (attached as .config)

All related error/warning messages are:

fs/pstore/platform.o: In function `kmsg_dump_rewind': (.text+0x46): multiple definition of `kmsg_dump_rewind'
fs/pstore/platform.o: In function `kmsg_dump_get_buffer': (.text+0x3f): multiple definition of `kmsg_dump_get_buffer'
fs/pstore/platform.o: In function `kmsg_dump_get_line': (.text+0x38): multiple definition of `kmsg_dump_get_line'
kernel/printk.o: In function `kmsg_dump_rewind': (.text+0x11b): multiple definition of `kmsg_dump_rewind'
kernel/printk.o: In function `kmsg_dump_get_buffer': (.text+0x114): multiple definition of `kmsg_dump_get_buffer'
kernel/printk.o: In function `kmsg_dump_get_line': (.text+0x10d): multiple definition of `kmsg_dump_get_line'
kernel/sys.o: In function `kmsg_dump_rewind': (.text+0x2ab): multiple definition of `kmsg_dump_rewind'
kernel/sys.o: In function `kmsg_dump_get_buffer': (.text+0x2a4): multiple definition of `kmsg_dump_get_buffer'
kernel/sys.o: In function `kmsg_dump_get_line': (.text+0x29d): multiple definition of `kmsg_dump_get_line'
arch/x86/kernel/reboot.o: In function `kmsg_dump_rewind': (.text+0x101): multiple definition of `kmsg_dump_rewind'
arch/x86/kernel/reboot.o: In function `kmsg_dump_get_buffer': (.text+0xfa): multiple definition of `kmsg_dump_get_buffer'
arch/x86/kernel/reboot.o: In function `kmsg_dump_get_line': (.text+0xf3): multiple definition of `kmsg_dump_get_line'

---
0-DAY kernel build testing backend         Open Source Technology Centre
Fengguang Wu <wfg@linux.intel.com>                     Intel Corporation
#
# Automatically generated file; DO NOT EDIT.
# Linux/i386 3.5.0-rc2 Kernel Configuration
#
# CONFIG_64BIT is not set
CONFIG_X86_32=y
# CONFIG_X86_64 is not set
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=y
CONFIG_OUTPUT_FORMAT="elf32-i386"
CONFIG_ARCH_DEFCONFIG="arch/x86/configs/i386_defconfig"
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_MMU=y
# CONFIG_NEED_DMA_MAP_STATE is not set
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_GPIO=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
# CONFIG_RWSEM_GENERIC_SPINLOCK is not set
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HAS_DEFAULT_IDLE=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_ARCH_HAS_CPU_AUTOPROBE=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
# CONFIG_ZONE_DMA32 is not set
# CONFIG_AUDIT_ARCH is not set
CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_X86_32_SMP=y
CONFIG_X86_HT=y
CONFIG_X86_32_LAZY_GS=y
CONFIG_ARCH_HWEIGHT_CFLAGS="-fcall-saved-ecx -fcall-saved-edx"
CONFIG_ARCH_CPU_PROBE_RELEASE=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_HAVE_IRQ_WORK=y
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_EXTABLE_SORT=y

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
# CONFIG_KERNEL_GZIP is not set
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
CONFIG_KERNEL_XZ=y
# CONFIG_KERNEL_LZO is not set
CONFIG_DEFAULT_HOSTNAME="(none)"
# CONFIG_SYSVIPC is not set
CONFIG_BSD_PROCESS_ACCT=y
# CONFIG_BSD_PROCESS_ACCT_V3 is not set
# CONFIG_FHANDLE is not set
CONFIG_HAVE_GENERIC_HARDIRQS=y

#
# IRQ subsystem
#
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_KTIME_SCALAR=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
CONFIG_GENERIC_CMOS_UPDATE=y

#
# Timers subsystem
#
# CONFIG_NO_HZ is not set
# CONFIG_HIGH_RES_TIMERS is not set

#
# RCU Subsystem
#
CONFIG_TREE_PREEMPT_RCU=y
CONFIG_PREEMPT_RCU=y
CONFIG_RCU_FANOUT=32
CONFIG_RCU_FANOUT_LEAF=16
CONFIG_RCU_FANOUT_EXACT=y
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_RCU_BOOST is not set
CONFIG_IKCONFIG=m
CONFIG_LOG_BUF_SHIFT=17
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
CONFIG_CGROUPS=y
CONFIG_CGROUP_DEBUG=y
# CONFIG_CGROUP_FREEZER is not set
CONFIG_CGROUP_DEVICE=y
# CONFIG_CPUSETS is not set
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
# CONFIG_CGROUP_MEM_RES_CTLR is not set
# CONFIG_CGROUP_PERF is not set
CONFIG_CGROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
# CONFIG_CFS_BANDWIDTH is not set
CONFIG_RT_GROUP_SCHED=y
# CONFIG_CHECKPOINT_RESTORE is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_RELAY is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
# CONFIG_RD_GZIP is not set
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
# CONFIG_RD_XZ is not set
# CONFIG_RD_LZO is not set
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_ANON_INODES=y
CONFIG_EXPERT=y
CONFIG_UID16=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_HOTPLUG=y
# CONFIG_PRINTK is not set
CONFIG_BUG=y
# CONFIG_ELF_CORE is not set
# CONFIG_PCSPKR_PLATFORM is not set
CONFIG_HAVE_PCSPKR_PLATFORM=y
# CONFIG_BASE_FULL is not set
# CONFIG_FUTEX is not set
# CONFIG_EPOLL is not set
# CONFIG_SIGNALFD is not set
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_EMBEDDED=y
CONFIG_HAVE_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
CONFIG_VM_EVENT_COUNTERS=y
# CONFIG_COMPAT_BRK is not set
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_SLOB is not set
CONFIG_PROFILING=y
CONFIG_OPROFILE=m
CONFIG_OPROFILE_EVENT_MULTIPLEX=y
CONFIG_HAVE_OPROFILE=y
CONFIG_OPROFILE_NMI_TIMER=y
# CONFIG_KPROBES is not set
CONFIG_JUMP_LABEL=y
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_OPTPROBES=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_ATTRS=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_USE_GENERIC_SMP_HELPERS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_DMA_API_DEBUG=y
CONFIG_HAVE_HW_BREAKPOINT=y
CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y
CONFIG_HAVE_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_PERF_EVENTS_NMI=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y
CONFIG_HAVE_CMPXCHG_LOCAL=y
CONFIG_HAVE_CMPXCHG_DOUBLE=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y

#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
CONFIG_HAVE_GENERIC_DMA_COHERENT=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=1
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_MODVERSIONS=y
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_STOP_MACHINE=y
# CONFIG_BLOCK is not set
# CONFIG_INLINE_SPIN_TRYLOCK is not set
# CONFIG_INLINE_SPIN_TRYLOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK is not set
# CONFIG_INLINE_SPIN_LOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK_IRQ is not set
# CONFIG_INLINE_SPIN_LOCK_IRQSAVE is not set
CONFIG_UNINLINE_SPIN_UNLOCK=y
# CONFIG_INLINE_SPIN_UNLOCK_BH is not set
# CONFIG_INLINE_SPIN_UNLOCK_IRQ is not set
# CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_READ_TRYLOCK is not set
# CONFIG_INLINE_READ_LOCK is not set
# CONFIG_INLINE_READ_LOCK_BH is not set
# CONFIG_INLINE_READ_LOCK_IRQ is not set
# CONFIG_INLINE_READ_LOCK_IRQSAVE is not set
# CONFIG_INLINE_READ_UNLOCK is not set
# CONFIG_INLINE_READ_UNLOCK_BH is not set
# CONFIG_INLINE_READ_UNLOCK_IRQ is not set
# CONFIG_INLINE_READ_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_WRITE_TRYLOCK is not set
# CONFIG_INLINE_WRITE_LOCK is not set
# CONFIG_INLINE_WRITE_LOCK_BH is not set
# CONFIG_INLINE_WRITE_LOCK_IRQ is not set
# CONFIG_INLINE_WRITE_LOCK_IRQSAVE is not set
# CONFIG_INLINE_WRITE_UNLOCK is not set
# CONFIG_INLINE_WRITE_UNLOCK_BH is not set
# CONFIG_INLINE_WRITE_UNLOCK_IRQ is not set
# CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE is not set
# CONFIG_MUTEX_SPIN_ON_OWNER is not set
CONFIG_FREEZER=y

#
# Processor type and features
#
# CONFIG_ZONE_DMA is not set
CONFIG_SMP=y
CONFIG_X86_MPPARSE=y
CONFIG_X86_BIGSMP=y
# CONFIG_X86_EXTENDED_PLATFORM is not set
CONFIG_X86_32_IRIS=m
# CONFIG_SCHED_OMIT_FRAME_POINTER is not set
# CONFIG_PARAVIRT_GUEST is not set
CONFIG_NO_BOOTMEM=y
# CONFIG_MEMTEST is not set
# CONFIG_M386 is not set
# CONFIG_M486 is not set
# CONFIG_M586 is not set
# CONFIG_M586TSC is not set
# CONFIG_M586MMX is not set
CONFIG_M686=y
# CONFIG_MPENTIUMII is not set
# CONFIG_MPENTIUMIII is not set
# CONFIG_MPENTIUMM is not set
# CONFIG_MPENTIUM4 is not set
# CONFIG_MK6 is not set
# CONFIG_MK7 is not set
# CONFIG_MK8 is not set
# CONFIG_MCRUSOE is not set
# CONFIG_MEFFICEON is not set
# CONFIG_MWINCHIPC6 is not set
# CONFIG_MWINCHIP3D is not set
# CONFIG_MELAN is not set
# CONFIG_MGEODEGX1 is not set
# CONFIG_MGEODE_LX is not set
# CONFIG_MCYRIXIII is not set
# CONFIG_MVIAC3_2 is not set
# CONFIG_MVIAC7 is not set
# CONFIG_MCORE2 is not set
# CONFIG_MATOM is not set
# CONFIG_X86_GENERIC is not set
CONFIG_X86_INTERNODE_CACHE_SHIFT=5
CONFIG_X86_CMPXCHG=y
CONFIG_X86_L1_CACHE_SHIFT=5
CONFIG_X86_XADD=y
CONFIG_X86_PPRO_FENCE=y
CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_INVLPG=y
CONFIG_X86_BSWAP=y
CONFIG_X86_POPAD_OK=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
CONFIG_X86_TSC=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=5
CONFIG_X86_DEBUGCTLMSR=y
# CONFIG_PROCESSOR_SELECT is not set
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_CYRIX_32=y
CONFIG_CPU_SUP_AMD=y
CONFIG_CPU_SUP_CENTAUR=y
CONFIG_CPU_SUP_TRANSMETA_32=y
CONFIG_CPU_SUP_UMC_32=y
CONFIG_HPET_TIMER=y
# CONFIG_DMI is not set
# CONFIG_IOMMU_HELPER is not set
CONFIG_NR_CPUS=32
CONFIG_SCHED_SMT=y
CONFIG_SCHED_MC=y
CONFIG_IRQ_TIME_ACCOUNTING=y
# CONFIG_PREEMPT_NONE is not set
# CONFIG_PREEMPT_VOLUNTARY is not set
CONFIG_PREEMPT=y
CONFIG_PREEMPT_COUNT=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
# CONFIG_X86_MCE is not set
CONFIG_VM86=y
CONFIG_TOSHIBA=m
CONFIG_I8K=m
# CONFIG_X86_REBOOTFIXUPS is not set
# CONFIG_MICROCODE is not set
# CONFIG_X86_MSR is not set
# CONFIG_X86_CPUID is not set
# CONFIG_NOHIGHMEM is not set
CONFIG_HIGHMEM4G=y
# CONFIG_HIGHMEM64G is not set
# CONFIG_VMSPLIT_3G is not set
# CONFIG_VMSPLIT_3G_OPT is not set
# CONFIG_VMSPLIT_2G is not set
CONFIG_VMSPLIT_2G_OPT=y
# CONFIG_VMSPLIT_1G is not set
CONFIG_PAGE_OFFSET=0x78000000
CONFIG_HIGHMEM=y
# CONFIG_ARCH_PHYS_ADDR_T_64BIT is not set
# CONFIG_ARCH_DMA_ADDR_T_64BIT is not set
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ILLEGAL_POINTER_VALUE=0
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_SPARSEMEM_STATIC=y
CONFIG_HAVE_MEMBLOCK=y
CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
CONFIG_ARCH_DISCARD_MEMBLOCK=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=999999
CONFIG_COMPACTION=y
CONFIG_MIGRATION=y
# CONFIG_PHYS_ADDR_T_64BIT is not set
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_TRANSPARENT_HUGEPAGE=y
# CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS is not set
CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y
CONFIG_CROSS_MEMORY_ATTACH=y
# CONFIG_CLEANCACHE is not set
# CONFIG_HIGHPTE is not set
CONFIG_X86_CHECK_BIOS_CORRUPTION=y
CONFIG_X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK=y
CONFIG_X86_RESERVE_LOW=64
CONFIG_MATH_EMULATION=y
# CONFIG_MTRR is not set
CONFIG_ARCH_RANDOM=y
# CONFIG_SECCOMP is not set
# CONFIG_CC_STACKPROTECTOR is not set
CONFIG_HZ_100=y
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
# CONFIG_SCHED_HRTICK is not set
# CONFIG_KEXEC is not set
# CONFIG_CRASH_DUMP is not set
CONFIG_PHYSICAL_START=0x1000000
CONFIG_RELOCATABLE=y
CONFIG_X86_NEED_RELOCS=y
CONFIG_PHYSICAL_ALIGN=0x1000000
CONFIG_HOTPLUG_CPU=y
# CONFIG_COMPAT_VDSO is not set
# CONFIG_CMDLINE_BOOL is not set
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y

#
# Power management and ACPI options
#
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
CONFIG_PM_SLEEP=y
CONFIG_PM_SLEEP_SMP=y
# CONFIG_PM_AUTOSLEEP is not set
# CONFIG_PM_WAKELOCKS is not set
CONFIG_PM_RUNTIME=y
CONFIG_PM=y
CONFIG_PM_DEBUG=y
CONFIG_PM_ADVANCED_DEBUG=y
# CONFIG_PM_TEST_SUSPEND is not set
CONFIG_CAN_PM_TRACE=y
CONFIG_PM_TRACE=y
CONFIG_PM_TRACE_RTC=y
# CONFIG_SFI is not set
# CONFIG_APM is not set

#
# CPU Frequency scaling
#
# CONFIG_CPU_FREQ is not set
# CONFIG_CPU_IDLE is not set

#
# Bus options (PCI etc.)
#
# CONFIG_PCI is not set
# CONFIG_ARCH_SUPPORTS_MSI is not set
CONFIG_ISA_DMA_API=y
CONFIG_ISA=y
# CONFIG_EISA is not set
# CONFIG_SCx200 is not set
# CONFIG_OLPC is not set
# CONFIG_ALIX is not set
# CONFIG_NET5501 is not set
# CONFIG_PCCARD is not set

#
# Executable file formats / Emulations
#
# CONFIG_BINFMT_ELF is not set
CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE=y
CONFIG_HAVE_AOUT=y
CONFIG_BINFMT_AOUT=m
CONFIG_BINFMT_MISC=m
CONFIG_HAVE_ATOMIC_IOMAP=y
CONFIG_HAVE_TEXT_POKE_SMP=y
# CONFIG_NET is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH=""
# CONFIG_DEVTMPFS is not set
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=m
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
CONFIG_DEBUG_DRIVER=y
CONFIG_DEBUG_DEVRES=y
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_GENERIC_CPU_DEVICES is not set
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=m
CONFIG_DMA_SHARED_BUFFER=y
# CONFIG_CMA is not set
CONFIG_MTD=m
CONFIG_MTD_TESTS=m
CONFIG_MTD_REDBOOT_PARTS=m
CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=-1
CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED=y
# CONFIG_MTD_REDBOOT_PARTS_READONLY is not set
CONFIG_MTD_AR7_PARTS=m

#
# User Modules And Translation Layers
#
CONFIG_MTD_CHAR=m
CONFIG_HAVE_MTD_OTP=y
# CONFIG_MTD_OOPS is not set

#
# RAM/ROM/Flash chip drivers
#
# CONFIG_MTD_CFI is not set
CONFIG_MTD_JEDECPROBE=m
CONFIG_MTD_GEN_PROBE=m
CONFIG_MTD_CFI_ADV_OPTIONS=y
# CONFIG_MTD_CFI_NOSWAP is not set
# CONFIG_MTD_CFI_BE_BYTE_SWAP is not set
CONFIG_MTD_CFI_LE_BYTE_SWAP=y
# CONFIG_MTD_CFI_GEOMETRY is not set
CONFIG_MTD_MAP_BANK_WIDTH_1=y
CONFIG_MTD_MAP_BANK_WIDTH_2=y
CONFIG_MTD_MAP_BANK_WIDTH_4=y
# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
CONFIG_MTD_CFI_I1=y
CONFIG_MTD_CFI_I2=y
# CONFIG_MTD_CFI_I4 is not set
# CONFIG_MTD_CFI_I8 is not set
CONFIG_MTD_OTP=y
CONFIG_MTD_CFI_INTELEXT=m
CONFIG_MTD_CFI_AMDSTD=m
CONFIG_MTD_CFI_STAA=m
CONFIG_MTD_CFI_UTIL=m
CONFIG_MTD_RAM=m
CONFIG_MTD_ROM=m
# CONFIG_MTD_ABSENT is not set

#
# Mapping drivers for chip access
#
CONFIG_MTD_COMPLEX_MAPPINGS=y
CONFIG_MTD_PHYSMAP=m
CONFIG_MTD_PHYSMAP_COMPAT=y
CONFIG_MTD_PHYSMAP_START=0x8000000
CONFIG_MTD_PHYSMAP_LEN=0
CONFIG_MTD_PHYSMAP_BANKWIDTH=2
CONFIG_MTD_TS5500=m
CONFIG_MTD_SBC_GXX=m
# CONFIG_MTD_AMD76XROM is not set
CONFIG_MTD_ICHXROM=m
CONFIG_MTD_NETtel=m
# CONFIG_MTD_L440GX is not set
CONFIG_MTD_GPIO_ADDR=m
# CONFIG_MTD_PLATRAM is not set
# CONFIG_MTD_LATCH_ADDR is not set

#
# Self-contained MTD device drivers
#
CONFIG_MTD_SLRAM=m
CONFIG_MTD_PHRAM=m
# CONFIG_MTD_MTDRAM is not set

#
# Disk-On-Chip Device Drivers
#
# CONFIG_MTD_DOC2000 is not set
# CONFIG_MTD_DOC2001 is not set
CONFIG_MTD_DOC2001PLUS=m
# CONFIG_MTD_DOCG3 is not set
CONFIG_MTD_DOCPROBE=m
CONFIG_MTD_DOCECC=m
CONFIG_MTD_DOCPROBE_ADVANCED=y
CONFIG_MTD_DOCPROBE_ADDRESS=0x0
CONFIG_MTD_DOCPROBE_HIGH=y
CONFIG_MTD_DOCPROBE_55AA=y
CONFIG_MTD_NAND_ECC=m
CONFIG_MTD_NAND_ECC_SMC=y
CONFIG_MTD_NAND=m
# CONFIG_MTD_NAND_VERIFY_WRITE is not set
# CONFIG_MTD_NAND_ECC_BCH is not set
# CONFIG_MTD_SM_COMMON is not set
CONFIG_MTD_NAND_MUSEUM_IDS=y
CONFIG_MTD_NAND_IDS=m
# CONFIG_MTD_NAND_DISKONCHIP is not set
# CONFIG_MTD_NAND_DOCG4 is not set
# CONFIG_MTD_NAND_CS553X is not set
CONFIG_MTD_NAND_NANDSIM=m
# CONFIG_MTD_NAND_PLATFORM is not set
CONFIG_MTD_ONENAND=m
# CONFIG_MTD_ONENAND_VERIFY_WRITE is not set
# CONFIG_MTD_ONENAND_GENERIC is not set
# CONFIG_MTD_ONENAND_OTP is not set
# CONFIG_MTD_ONENAND_2X_PROGRAM is not set
# CONFIG_MTD_ONENAND_SIM is not set

#
# LPDDR flash memory drivers
#
CONFIG_MTD_LPDDR=m
CONFIG_MTD_QINFO_PROBE=m
# CONFIG_MTD_UBI is not set
# CONFIG_PARPORT is not set
CONFIG_PNP=y
# CONFIG_PNP_DEBUG_MESSAGES is not set

#
# Protocols
#
# CONFIG_ISAPNP is not set
# CONFIG_PNPBIOS is not set
# CONFIG_PNPACPI is not set

#
# Misc devices
#
# CONFIG_SENSORS_LIS3LV02D is not set
# CONFIG_ICS932S401 is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_APDS9802ALS is not set
# CONFIG_ISL29020 is not set
# CONFIG_SENSORS_BH1770 is not set
# CONFIG_SENSORS_APDS990X is not set
# CONFIG_HMC6352 is not set
# CONFIG_DS1682 is not set
# CONFIG_VMWARE_BALLOON is not set
# CONFIG_USB_SWITCH_FSA9480 is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_MAX6875 is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_IWMC3200TOP is not set

#
# Texas Instruments shared transport line discipline
#
# CONFIG_SENSORS_LIS3_I2C is not set

#
# Altera FPGA firmware download module
#
# CONFIG_ALTERA_STAPL is not set
CONFIG_HAVE_IDE=y

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_SCSI_DMA is not set
# CONFIG_SCSI_NETLINK is not set
# CONFIG_MACINTOSH_DRIVERS is not set

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_FF_MEMLESS=m
CONFIG_INPUT_POLLDEV=m
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_MATRIXKMAP is not set

#
# Userland interfaces
#
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
CONFIG_INPUT_TABLET=y
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=m
CONFIG_SERIO_I8042=m
CONFIG_SERIO_SERPORT=m
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_LIBPS2 is not set
# CONFIG_SERIO_RAW is not set
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
CONFIG_GAMEPORT=m
CONFIG_GAMEPORT_NS558=m
# CONFIG_GAMEPORT_L4 is not set

#
# Character devices
#
CONFIG_VT=y
# CONFIG_CONSOLE_TRANSLATIONS is not set
CONFIG_VT_CONSOLE=y
CONFIG_VT_CONSOLE_SLEEP=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
CONFIG_SERIAL_NONSTANDARD=y
CONFIG_ROCKETPORT=m
CONFIG_CYCLADES=m
# CONFIG_CYZ_INTR is not set
# CONFIG_MOXA_INTELLIO is not set
CONFIG_MOXA_SMARTIO=m
# CONFIG_N_HDLC is not set
CONFIG_TRACE_ROUTER=m
CONFIG_TRACE_SINK=m
CONFIG_DEVKMEM=y
# CONFIG_STALDRV is not set

#
# Serial drivers
#
# CONFIG_SERIAL_8250 is not set
CONFIG_FIX_EARLYCON_MEM=y

#
# Non-8250 serial port support
#
CONFIG_SERIAL_CORE=m
CONFIG_CONSOLE_POLL=y
# CONFIG_SERIAL_TIMBERDALE is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
CONFIG_SERIAL_ALTERA_UART=m
CONFIG_SERIAL_ALTERA_UART_MAXPORTS=4
CONFIG_SERIAL_ALTERA_UART_BAUDRATE=115200
# CONFIG_SERIAL_XILINX_PS_UART is not set
# CONFIG_TTY_PRINTK is not set
CONFIG_IPMI_HANDLER=m
CONFIG_IPMI_PANIC_EVENT=y
CONFIG_IPMI_PANIC_STRING=y
CONFIG_IPMI_DEVICE_INTERFACE=m
CONFIG_IPMI_SI=m
CONFIG_IPMI_WATCHDOG=m
# CONFIG_IPMI_POWEROFF is not set
# CONFIG_HW_RANDOM is not set
CONFIG_NVRAM=m
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_MWAVE is not set
# CONFIG_PC8736x_GPIO is not set
CONFIG_NSC_GPIO=m
CONFIG_HANGCHECK_TIMER=m
CONFIG_TCG_TPM=m
CONFIG_TCG_TIS=m
# CONFIG_TCG_NSC is not set
CONFIG_TCG_ATMEL=m
# CONFIG_TCG_INFINEON is not set
CONFIG_TELCLOCK=m
CONFIG_DEVPORT=y
CONFIG_I2C=m
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
CONFIG_I2C_CHARDEV=m
# CONFIG_I2C_MUX is not set
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_ALGOBIT=m

#
# I2C Hardware Bus support
#

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
CONFIG_I2C_GPIO=m
CONFIG_I2C_OCORES=m
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_PXA_PCI is not set
CONFIG_I2C_SIMTEC=m
# CONFIG_I2C_XILINX is not set

#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_TAOS_EVM is not set

#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_PCA_ISA is not set
# CONFIG_I2C_STUB is not set
CONFIG_I2C_DEBUG_CORE=y
CONFIG_I2C_DEBUG_ALGO=y
CONFIG_I2C_DEBUG_BUS=y
# CONFIG_SPI is not set
# CONFIG_HSI is not set

#
# PPS support
#
# CONFIG_PPS is not set

#
# PPS generators support
#

#
# PTP clock support
#

#
# Enable Device Drivers -> PPS to see the PTP clock options.
#
CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
CONFIG_GPIOLIB=y
# CONFIG_DEBUG_GPIO is not set

#
# Memory mapped GPIO drivers:
#
# CONFIG_GPIO_GENERIC_PLATFORM is not set
CONFIG_GPIO_IT8761E=m

#
# I2C GPIO expanders:
#
# CONFIG_GPIO_MAX7300 is not set
# CONFIG_GPIO_MAX732X is not set
# CONFIG_GPIO_PCA953X is not set
# CONFIG_GPIO_PCF857X is not set
CONFIG_GPIO_ADP5588=m

#
# PCI GPIO expanders:
#

#
# SPI GPIO expanders:
#
# CONFIG_GPIO_MCP23S08 is not set

#
# AC97 GPIO expanders:
#

#
# MODULbus GPIO expanders:
#
CONFIG_W1=m

#
# 1-wire Bus Masters
#
CONFIG_W1_MASTER_DS2482=m
CONFIG_W1_MASTER_DS1WM=m
CONFIG_W1_MASTER_GPIO=m

#
# 1-wire Slaves
#
# CONFIG_W1_SLAVE_THERM is not set
CONFIG_W1_SLAVE_SMEM=m
# CONFIG_W1_SLAVE_DS2408 is not set
# CONFIG_W1_SLAVE_DS2423 is not set
# CONFIG_W1_SLAVE_DS2431 is not set
CONFIG_W1_SLAVE_DS2433=m
CONFIG_W1_SLAVE_DS2433_CRC=y
# CONFIG_W1_SLAVE_DS2760 is not set
CONFIG_W1_SLAVE_DS2780=m
# CONFIG_W1_SLAVE_DS2781 is not set
CONFIG_W1_SLAVE_BQ27000=m
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
CONFIG_PDA_POWER=m
# CONFIG_TEST_POWER is not set
CONFIG_BATTERY_DS2780=m
# CONFIG_BATTERY_DS2781 is not set
CONFIG_BATTERY_DS2782=m
# CONFIG_BATTERY_SBS is not set
# CONFIG_BATTERY_BQ27x00 is not set
# CONFIG_BATTERY_MAX17040 is not set
CONFIG_BATTERY_MAX17042=m
# CONFIG_CHARGER_PCF50633 is not set
# CONFIG_CHARGER_MAX8903 is not set
# CONFIG_CHARGER_LP8727 is not set
# CONFIG_CHARGER_GPIO is not set
# CONFIG_CHARGER_MANAGER is not set
# CONFIG_CHARGER_SMB347 is not set
CONFIG_HWMON=m
CONFIG_HWMON_VID=m
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
# CONFIG_SENSORS_AD7414 is not set
CONFIG_SENSORS_AD7418=m
# CONFIG_SENSORS_ADM1021 is not set
# CONFIG_SENSORS_ADM1025 is not set
# CONFIG_SENSORS_ADM1026 is not set
CONFIG_SENSORS_ADM1029=m
# CONFIG_SENSORS_ADM1031 is not set
CONFIG_SENSORS_ADM9240=m
# CONFIG_SENSORS_ADT7411 is not set
# CONFIG_SENSORS_ADT7462 is not set
# CONFIG_SENSORS_ADT7470 is not set
# CONFIG_SENSORS_ADT7475 is not set
CONFIG_SENSORS_ASC7621=m
CONFIG_SENSORS_ASB100=m
# CONFIG_SENSORS_ATXP1 is not set
CONFIG_SENSORS_DS620=m
# CONFIG_SENSORS_DS1621 is not set
CONFIG_SENSORS_F71805F=m
# CONFIG_SENSORS_F71882FG is not set
CONFIG_SENSORS_F75375S=m
CONFIG_SENSORS_FSCHMD=m
CONFIG_SENSORS_G760A=m
CONFIG_SENSORS_GL518SM=m
CONFIG_SENSORS_GL520SM=m
CONFIG_SENSORS_GPIO_FAN=m
# CONFIG_SENSORS_IBMAEM is not set
# CONFIG_SENSORS_IBMPEX is not set
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_JC42 is not set
# CONFIG_SENSORS_LINEAGE is not set
CONFIG_SENSORS_LM63=m
CONFIG_SENSORS_LM73=m
CONFIG_SENSORS_LM75=m
# CONFIG_SENSORS_LM77 is not set
# CONFIG_SENSORS_LM78 is not set
CONFIG_SENSORS_LM80=m
CONFIG_SENSORS_LM83=m
# CONFIG_SENSORS_LM85 is not set
CONFIG_SENSORS_LM87=m
# CONFIG_SENSORS_LM90 is not set
# CONFIG_SENSORS_LM92 is not set
# CONFIG_SENSORS_LM93 is not set
# CONFIG_SENSORS_LTC4151 is not set
CONFIG_SENSORS_LTC4215=m
CONFIG_SENSORS_LTC4245=m
# CONFIG_SENSORS_LTC4261 is not set
# CONFIG_SENSORS_LM95241 is not set
# CONFIG_SENSORS_LM95245 is not set
CONFIG_SENSORS_MAX16065=m
# CONFIG_SENSORS_MAX1619 is not set
# CONFIG_SENSORS_MAX1668 is not set
# CONFIG_SENSORS_MAX6639 is not set
# CONFIG_SENSORS_MAX6642 is not set
CONFIG_SENSORS_MAX6650=m
# CONFIG_SENSORS_MCP3021 is not set
# CONFIG_SENSORS_NTC_THERMISTOR is not set
# CONFIG_SENSORS_PC87360 is not set
CONFIG_SENSORS_PC87427=m
# CONFIG_SENSORS_PCF8591 is not set
# CONFIG_PMBUS is not set
CONFIG_SENSORS_SHT15=m
# CONFIG_SENSORS_SHT21 is not set
# CONFIG_SENSORS_SMM665 is not set
CONFIG_SENSORS_DME1737=m
CONFIG_SENSORS_EMC1403=m
# CONFIG_SENSORS_EMC2103 is not set
# CONFIG_SENSORS_EMC6W201 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47M192 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_SCH56XX_COMMON is not set
# CONFIG_SENSORS_SCH5627 is not set
# CONFIG_SENSORS_SCH5636 is not set
# CONFIG_SENSORS_ADS1015 is not set
CONFIG_SENSORS_ADS7828=m
# CONFIG_SENSORS_AMC6821 is not set
# CONFIG_SENSORS_INA2XX is not set
CONFIG_SENSORS_THMC50=m
CONFIG_SENSORS_TMP102=m
CONFIG_SENSORS_TMP401=m
CONFIG_SENSORS_TMP421=m
CONFIG_SENSORS_VIA_CPUTEMP=m
CONFIG_SENSORS_VT1211=m
# CONFIG_SENSORS_W83781D is not set
# CONFIG_SENSORS_W83791D is not set
CONFIG_SENSORS_W83792D=m
CONFIG_SENSORS_W83793=m
CONFIG_SENSORS_W83795=m
CONFIG_SENSORS_W83795_FANCTRL=y
# CONFIG_SENSORS_W83L785TS is not set
# CONFIG_SENSORS_W83L786NG is not set
CONFIG_SENSORS_W83627HF=m
# CONFIG_SENSORS_W83627EHF is not set
# CONFIG_SENSORS_APPLESMC is not set
# CONFIG_THERMAL is not set
CONFIG_WATCHDOG=y
# CONFIG_WATCHDOG_CORE is not set
# CONFIG_WATCHDOG_NOWAYOUT is not set

#
# Watchdog Device Drivers
#
# CONFIG_SOFT_WATCHDOG is not set
CONFIG_ACQUIRE_WDT=m
# CONFIG_ADVANTECH_WDT is not set
CONFIG_F71808E_WDT=m
# CONFIG_SC520_WDT is not set
# CONFIG_SBC_FITPC2_WATCHDOG is not set
CONFIG_EUROTECH_WDT=m
# CONFIG_IB700_WDT is not set
CONFIG_IBMASR=m
# CONFIG_WAFER_WDT is not set
# CONFIG_IT8712F_WDT is not set
# CONFIG_IT87_WDT is not set
# CONFIG_SC1200_WDT is not set
CONFIG_PC87413_WDT=m
# CONFIG_60XX_WDT is not set
CONFIG_SBC8360_WDT=m
CONFIG_SBC7240_WDT=m
# CONFIG_CPU5_WDT is not set
# CONFIG_SMSC_SCH311X_WDT is not set
# CONFIG_SMSC37B787_WDT is not set
# CONFIG_W83627HF_WDT is not set
# CONFIG_W83697HF_WDT is not set
# CONFIG_W83697UG_WDT is not set
# CONFIG_W83877F_WDT is not set
# CONFIG_W83977F_WDT is not set
CONFIG_MACHZ_WDT=m
CONFIG_SBC_EPX_C3_WATCHDOG=m

#
# ISA-based Watchdog Cards
#
# CONFIG_PCWATCHDOG is not set
CONFIG_MIXCOMWD=m
CONFIG_WDT=m
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y

#
# Broadcom specific AMBA
#
# CONFIG_BCMA is not set

#
# Multifunction device drivers
#
CONFIG_MFD_CORE=m
CONFIG_MFD_SM501=m
CONFIG_MFD_SM501_GPIO=y
# CONFIG_HTC_PASIC3 is not set
# CONFIG_MFD_LM3533 is not set
CONFIG_TPS6105X=m
CONFIG_TPS65010=m
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65217 is not set
# CONFIG_MFD_TMIO is not set
CONFIG_MFD_PCF50633=m
CONFIG_PCF50633_ADC=m
CONFIG_PCF50633_GPIO=m
# CONFIG_MFD_MC13XXX_I2C is not set
CONFIG_ABX500_CORE=y
CONFIG_MFD_WL1273_CORE=m
CONFIG_REGULATOR=y
# CONFIG_REGULATOR_DEBUG is not set
# CONFIG_REGULATOR_DUMMY is not set
CONFIG_REGULATOR_FIXED_VOLTAGE=m
# CONFIG_REGULATOR_VIRTUAL_CONSUMER is not set
# CONFIG_REGULATOR_USERSPACE_CONSUMER is not set
# CONFIG_REGULATOR_GPIO is not set
CONFIG_REGULATOR_AD5398=m
CONFIG_REGULATOR_ISL6271A=m
# CONFIG_REGULATOR_MAX1586 is not set
# CONFIG_REGULATOR_MAX8649 is not set
# CONFIG_REGULATOR_MAX8660 is not set
# CONFIG_REGULATOR_MAX8952 is not set
# CONFIG_REGULATOR_LP3971 is not set
CONFIG_REGULATOR_LP3972=m
CONFIG_REGULATOR_PCF50633=m
CONFIG_REGULATOR_TPS6105X=m
# CONFIG_REGULATOR_TPS62360 is not set
# CONFIG_REGULATOR_TPS65023 is not set
CONFIG_REGULATOR_TPS6507X=m
# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
CONFIG_DRM=m
# CONFIG_DRM_UDL is not set
# CONFIG_VGASTATE is not set
CONFIG_VIDEO_OUTPUT_CONTROL=m
# CONFIG_FB is not set
# CONFIG_EXYNOS_VIDEO is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set

#
# Console display driver support
#
# CONFIG_VGA_CONSOLE is not set
# CONFIG_MDA_CONSOLE is not set
CONFIG_DUMMY_CONSOLE=y
CONFIG_SOUND=m
# CONFIG_SOUND_OSS_CORE is not set
# CONFIG_SND is not set
# CONFIG_SOUND_PRIME is not set
CONFIG_HID_SUPPORT=y
CONFIG_HID=m
CONFIG_HIDRAW=y
# CONFIG_HID_PID is not set

#
# Special HID drivers
#
CONFIG_HID_GENERIC=m
# CONFIG_USB_ARCH_HAS_OHCI is not set
# CONFIG_USB_ARCH_HAS_EHCI is not set
# CONFIG_USB_ARCH_HAS_XHCI is not set
CONFIG_USB_SUPPORT=y
# CONFIG_USB_ARCH_HAS_HCD is not set
# CONFIG_USB_OTG_WHITELIST is not set
# CONFIG_USB_OTG_BLACKLIST_HUB is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#
# CONFIG_USB_GADGET is not set

#
# OTG and related infrastructure
#
CONFIG_MMC=m
CONFIG_MMC_DEBUG=y
# CONFIG_MMC_UNSAFE_RESUME is not set
# CONFIG_MMC_CLKGATE is not set

#
# MMC/SD/SDIO Card Drivers
#
CONFIG_SDIO_UART=m
# CONFIG_MMC_TEST is not set

#
# MMC/SD/SDIO Host Controller Drivers
#
CONFIG_MMC_SDHCI=m
# CONFIG_MMC_SDHCI_PLTFM is not set
# CONFIG_MMC_WBSD is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
CONFIG_EDAC=y

#
# Reporting subsystems
#
# CONFIG_EDAC_DEBUG is not set
# CONFIG_EDAC_MM_EDAC is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
# CONFIG_RTC_INTF_DEV is not set
CONFIG_RTC_DRV_TEST=m

#
# I2C RTC drivers
#
CONFIG_RTC_DRV_DS1307=m
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
CONFIG_RTC_DRV_DS3232=m
# CONFIG_RTC_DRV_MAX6900 is not set
CONFIG_RTC_DRV_RS5C372=m
CONFIG_RTC_DRV_ISL1208=m
# CONFIG_RTC_DRV_ISL12022 is not set
# CONFIG_RTC_DRV_X1205 is not set
CONFIG_RTC_DRV_PCF8563=m
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_BQ32K is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
CONFIG_RTC_DRV_RX8581=m
CONFIG_RTC_DRV_RX8025=m
# CONFIG_RTC_DRV_EM3027 is not set
CONFIG_RTC_DRV_RV3029C2=m

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_CMOS is not set
CONFIG_RTC_DRV_DS1286=m
CONFIG_RTC_DRV_DS1511=m
# CONFIG_RTC_DRV_DS1553 is not set
CONFIG_RTC_DRV_DS1742=m
CONFIG_RTC_DRV_STK17TA8=m
CONFIG_RTC_DRV_M48T86=m
CONFIG_RTC_DRV_M48T35=m
# CONFIG_RTC_DRV_M48T59 is not set
CONFIG_RTC_DRV_MSM6242=m
CONFIG_RTC_DRV_BQ4802=m
CONFIG_RTC_DRV_RP5C01=m
# CONFIG_RTC_DRV_V3020 is not set
CONFIG_RTC_DRV_PCF50633=m

#
# on-CPU RTC drivers
#
CONFIG_DMADEVICES=y
# CONFIG_DMADEVICES_DEBUG is not set

#
# DMA Devices
#
# CONFIG_TIMB_DMA is not set
CONFIG_AUXDISPLAY=y
CONFIG_UIO=m
CONFIG_UIO_PDRV=m
CONFIG_UIO_PDRV_GENIRQ=m

#
# Virtio drivers
#
# CONFIG_VIRTIO_BALLOON is not set
# CONFIG_VIRTIO_MMIO is not set

#
# Microsoft Hyper-V guest support
#
CONFIG_STAGING=y
# CONFIG_ECHO is not set
CONFIG_COMEDI=m
CONFIG_COMEDI_DEBUG=y
CONFIG_COMEDI_DEFAULT_BUF_SIZE_KB=2048
CONFIG_COMEDI_DEFAULT_BUF_MAXSIZE_KB=20480
# CONFIG_COMEDI_MISC_DRIVERS is not set
# CONFIG_COMEDI_ISA_DRIVERS is not set
# CONFIG_COMEDI_NI_COMMON is not set
# CONFIG_COMEDI_8255 is not set
# CONFIG_COMEDI_FC is not set

#
# IIO staging drivers
#
# CONFIG_IIO_ST_HWMON is not set
CONFIG_IIO_SW_RING=m

#
# Accelerometers
#

#
# Analog to digital converters
#
# CONFIG_AD7291 is not set
CONFIG_AD7606=m
CONFIG_AD7606_IFACE_PARALLEL=m
# CONFIG_AD799X is not set
CONFIG_ADT7410=m
CONFIG_MAX1363=m
CONFIG_MAX1363_RING_BUFFER=y

#
# Analog digital bi-direction converters
#
CONFIG_ADT7316=m
CONFIG_ADT7316_I2C=m

#
# Capacitance to digital converters
#
CONFIG_AD7150=m
# CONFIG_AD7152 is not set
# CONFIG_AD7746 is not set

#
# Digital to analog converters
#
# CONFIG_AD5380 is not set
CONFIG_MAX517=m

#
# Direct Digital Synthesis
#

#
# Digital gyroscope sensors
#

#
# Network Analyzer, Impedance Converters
#
# CONFIG_AD5933 is not set

#
# Inertial measurement units
#

#
# Light sensors
#
# CONFIG_SENSORS_ISL29018 is not set
# CONFIG_SENSORS_ISL29028 is not set
CONFIG_SENSORS_TSL2563=m
CONFIG_TSL2583=m
# CONFIG_TSL2x7x is not set

#
# Magnetometer sensors
#
# CONFIG_SENSORS_AK8975 is not set
# CONFIG_SENSORS_HMC5843 is not set

#
# Active energy metering IC
#
# CONFIG_ADE7854 is not set

#
# Resolver to digital converters
#

#
# Triggers - standalone
#
CONFIG_IIO_PERIODIC_RTC_TRIGGER=m
# CONFIG_IIO_GPIO_TRIGGER is not set
# CONFIG_IIO_SIMPLE_DUMMY is not set
# CONFIG_ZSMALLOC is not set
# CONFIG_FT1000 is not set

#
# Speakup console speech
#
# CONFIG_SPEAKUP is not set
# CONFIG_TOUCHSCREEN_CLEARPAD_TM1217 is not set
# CONFIG_TOUCHSCREEN_SYNAPTICS_I2C_RMI4 is not set
# CONFIG_STAGING_MEDIA is not set

#
# Android
#
# CONFIG_ANDROID is not set
# CONFIG_PHONE is not set
# CONFIG_IPACK_BUS is not set
CONFIG_X86_PLATFORM_DEVICES=y
CONFIG_SENSORS_HDAPS=m
# CONFIG_SAMSUNG_Q10 is not set
# CONFIG_APPLE_GMUX is not set

#
# Hardware Spinlock drivers
#
CONFIG_CLKSRC_I8253=y
CONFIG_CLKEVT_I8253=y
CONFIG_CLKBLD_I8253=y
CONFIG_IOMMU_SUPPORT=y

#
# Remoteproc drivers (EXPERIMENTAL)
#

#
# Rpmsg drivers (EXPERIMENTAL)
#
# CONFIG_VIRT_DRIVERS is not set
# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
CONFIG_IIO=m
CONFIG_IIO_BUFFER=y
CONFIG_IIO_KFIFO_BUF=m
CONFIG_IIO_TRIGGER=y
CONFIG_IIO_CONSUMERS_PER_TRIGGER=2

#
# Analog to digital converters
#

#
# Amplifiers
#

#
# Firmware Drivers
#
# CONFIG_EDD is not set
# CONFIG_FIRMWARE_MEMMAP is not set
CONFIG_DELL_RBU=m
# CONFIG_DCDBAS is not set
CONFIG_ISCSI_IBFT_FIND=y
# CONFIG_GOOGLE_FIRMWARE is not set

#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
# CONFIG_FS_POSIX_ACL is not set
CONFIG_FILE_LOCKING=y
# CONFIG_FSNOTIFY is not set
# CONFIG_DNOTIFY is not set
# CONFIG_INOTIFY_USER is not set
# CONFIG_FANOTIFY is not set
# CONFIG_QUOTA is not set
# CONFIG_QUOTACTL is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set

#
# Caches
#
CONFIG_FSCACHE=m
CONFIG_FSCACHE_DEBUG=y

#
# Pseudo filesystems
#
# CONFIG_PROC_FS is not set
# CONFIG_SYSFS is not set
# CONFIG_TMPFS is not set
# CONFIG_HUGETLBFS is not set
# CONFIG_HUGETLB_PAGE is not set
# CONFIG_CONFIGFS_FS is not set
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ECRYPT_FS is not set
# CONFIG_JFFS2_FS is not set
CONFIG_LOGFS=m
CONFIG_ROMFS_FS=m
CONFIG_ROMFS_BACKED_BY_MTD=y
CONFIG_ROMFS_ON_MTD=y
CONFIG_PSTORE=y
# CONFIG_PSTORE_RAM is not set
# CONFIG_NLS is not set

#
# Kernel hacking
#
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_DEFAULT_MESSAGE_LOGLEVEL=4
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_FRAME_WARN=1024
CONFIG_MAGIC_SYSRQ=y
CONFIG_STRIP_ASM_SYMS=y
# CONFIG_READABLE_ASM is not set
# CONFIG_UNUSED_SYMBOLS is not set
CONFIG_DEBUG_FS=y
CONFIG_HEADERS_CHECK=y
# CONFIG_DEBUG_SECTION_MISMATCH is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
# CONFIG_LOCKUP_DETECTOR is not set
# CONFIG_HARDLOCKUP_DETECTOR is not set
# CONFIG_DETECT_HUNG_TASK is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_DEBUG_KMEMLEAK is not set
CONFIG_DEBUG_PREEMPT=y
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_DEBUG_PI_LIST=y
CONFIG_RT_MUTEX_TESTER=y
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_LOCK_ALLOC=y
CONFIG_PROVE_LOCKING=y
# CONFIG_PROVE_RCU is not set
CONFIG_SPARSE_RCU_POINTER=y
CONFIG_LOCKDEP=y
CONFIG_LOCK_STAT=y
# CONFIG_DEBUG_LOCKDEP is not set
CONFIG_TRACE_IRQFLAGS=y
# CONFIG_DEBUG_ATOMIC_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
CONFIG_STACKTRACE=y
CONFIG_DEBUG_STACK_USAGE=y
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_HIGHMEM=y
# CONFIG_DEBUG_BUGVERBOSE is not set
# CONFIG_DEBUG_INFO is not set
CONFIG_DEBUG_VM=y
# CONFIG_DEBUG_VIRTUAL is not set
# CONFIG_DEBUG_WRITECOUNT is not set
# CONFIG_DEBUG_MEMORY_INIT is not set
# CONFIG_DEBUG_LIST is not set
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_DEBUG_SG is not set
CONFIG_DEBUG_NOTIFIERS=y
CONFIG_DEBUG_CREDENTIALS=y
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=y
# CONFIG_RCU_TORTURE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=60
# CONFIG_RCU_CPU_STALL_VERBOSE is not set
# CONFIG_RCU_CPU_STALL_INFO is not set
# CONFIG_RCU_TRACE is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
CONFIG_DEBUG_FORCE_WEAK_PER_CPU=y
# CONFIG_DEBUG_PER_CPU_MAPS is not set
CONFIG_CPU_NOTIFIER_ERROR_INJECT=m
CONFIG_FAULT_INJECTION=y
CONFIG_FAILSLAB=y
# CONFIG_FAIL_PAGE_ALLOC is not set
# CONFIG_FAIL_MMC_REQUEST is not set
# CONFIG_DEBUG_PAGEALLOC is not set
CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_FP_TEST=y
CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_RING_BUFFER=y
CONFIG_RING_BUFFER_ALLOW_SWAP=y
CONFIG_TRACING_SUPPORT=y
# CONFIG_FTRACE is not set
# CONFIG_BUILD_DOCSRC is not set
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_SAMPLES is not set
CONFIG_HAVE_ARCH_KGDB=y
CONFIG_KGDB=y
CONFIG_KGDB_SERIAL_CONSOLE=m
# CONFIG_KGDB_TESTS is not set
# CONFIG_KGDB_LOW_LEVEL_TRAP is not set
CONFIG_KGDB_KDB=y
# CONFIG_KDB_KEYBOARD is not set
CONFIG_HAVE_ARCH_KMEMCHECK=y
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_STRICT_DEVMEM is not set
# CONFIG_X86_VERBOSE_BOOTUP is not set
# CONFIG_EARLY_PRINTK is not set
CONFIG_DEBUG_STACKOVERFLOW=y
# CONFIG_X86_PTDUMP is not set
CONFIG_DEBUG_RODATA=y
CONFIG_DEBUG_RODATA_TEST=y
# CONFIG_DEBUG_SET_MODULE_RONX is not set
CONFIG_DEBUG_NX_TEST=m
# CONFIG_DOUBLEFAULT is not set
# CONFIG_IOMMU_STRESS is not set
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
CONFIG_IO_DELAY_TYPE_0X80=0
CONFIG_IO_DELAY_TYPE_0XED=1
CONFIG_IO_DELAY_TYPE_UDELAY=2
CONFIG_IO_DELAY_TYPE_NONE=3
# CONFIG_IO_DELAY_0X80 is not set
# CONFIG_IO_DELAY_0XED is not set
# CONFIG_IO_DELAY_UDELAY is not set
CONFIG_IO_DELAY_NONE=y
CONFIG_DEFAULT_IO_DELAY_TYPE=3
CONFIG_DEBUG_BOOT_PARAMS=y
CONFIG_CPA_DEBUG=y
# CONFIG_OPTIMIZE_INLINING is not set
# CONFIG_DEBUG_STRICT_USER_COPY_CHECKS is not set
# CONFIG_DEBUG_NMI_SELFTEST is not set

#
# Security options
#
CONFIG_KEYS=y
CONFIG_TRUSTED_KEYS=m
# CONFIG_ENCRYPTED_KEYS is not set
CONFIG_KEYS_DEBUG_PROC_KEYS=y
CONFIG_SECURITY_DMESG_RESTRICT=y
CONFIG_SECURITYFS=y
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=m

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=m
CONFIG_CRYPTO_ALGAPI2=m
CONFIG_CRYPTO_AEAD=m
CONFIG_CRYPTO_AEAD2=m
CONFIG_CRYPTO_BLKCIPHER=m
CONFIG_CRYPTO_BLKCIPHER2=m
CONFIG_CRYPTO_HASH=m
CONFIG_CRYPTO_HASH2=m
CONFIG_CRYPTO_RNG=m
CONFIG_CRYPTO_RNG2=m
CONFIG_CRYPTO_PCOMP2=m
CONFIG_CRYPTO_MANAGER=m
CONFIG_CRYPTO_MANAGER2=m
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
CONFIG_CRYPTO_GF128MUL=m
CONFIG_CRYPTO_NULL=m
# CONFIG_CRYPTO_PCRYPT is not set
CONFIG_CRYPTO_WORKQUEUE=m
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_AUTHENC=m
CONFIG_CRYPTO_TEST=m

#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=m
# CONFIG_CRYPTO_GCM is not set
CONFIG_CRYPTO_SEQIV=m

#
# Block modes
#
CONFIG_CRYPTO_CBC=m
CONFIG_CRYPTO_CTR=m
# CONFIG_CRYPTO_CTS is not set
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_LRW=m
# CONFIG_CRYPTO_PCBC is not set
CONFIG_CRYPTO_XTS=m

#
# Hash modes
#
CONFIG_CRYPTO_HMAC=m
# CONFIG_CRYPTO_XCBC is not set
CONFIG_CRYPTO_VMAC=m

#
# Digest
#
CONFIG_CRYPTO_CRC32C=m
CONFIG_CRYPTO_CRC32C_INTEL=m
CONFIG_CRYPTO_GHASH=m
# CONFIG_CRYPTO_MD4 is not set
# CONFIG_CRYPTO_MD5 is not set
# CONFIG_CRYPTO_MICHAEL_MIC is not set
CONFIG_CRYPTO_RMD128=m
# CONFIG_CRYPTO_RMD160 is not set
CONFIG_CRYPTO_RMD256=m
CONFIG_CRYPTO_RMD320=m
CONFIG_CRYPTO_SHA1=m
CONFIG_CRYPTO_SHA256=m
CONFIG_CRYPTO_SHA512=m
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set

#
# Ciphers
#
CONFIG_CRYPTO_AES=m
CONFIG_CRYPTO_AES_586=m
CONFIG_CRYPTO_AES_NI_INTEL=m
CONFIG_CRYPTO_ANUBIS=m
# CONFIG_CRYPTO_ARC4 is not set
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_BLOWFISH_COMMON=m
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SALSA20=m
CONFIG_CRYPTO_SALSA20_586=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_SERPENT=m
# CONFIG_CRYPTO_SERPENT_SSE2_586 is not set
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_TWOFISH_COMMON=m
# CONFIG_CRYPTO_TWOFISH_586 is not set

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=m
# CONFIG_CRYPTO_ZLIB is not set
CONFIG_CRYPTO_LZO=m

#
# Random Number Generation
#
CONFIG_CRYPTO_ANSI_CPRNG=m
# CONFIG_CRYPTO_HW is not set
CONFIG_HAVE_KVM=y
# CONFIG_VIRTUALIZATION is not set
# CONFIG_BINARY_PRINTF is not set

#
# Library routines
#
CONFIG_BITREVERSE=m
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_FIND_FIRST_BIT=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IOMAP=y
CONFIG_GENERIC_IO=y
CONFIG_CRC_CCITT=m
CONFIG_CRC16=m
CONFIG_CRC_T10DIF=m
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=m
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
# CONFIG_CRC8 is not set
CONFIG_ZLIB_INFLATE=m
CONFIG_ZLIB_DEFLATE=m
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_XZ_DEC=m
# CONFIG_XZ_DEC_X86 is not set
# CONFIG_XZ_DEC_POWERPC is not set
# CONFIG_XZ_DEC_IA64 is not set
# CONFIG_XZ_DEC_ARM is not set
# CONFIG_XZ_DEC_ARMTHUMB is not set
CONFIG_XZ_DEC_SPARC=y
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_BTREE=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_AVERAGE=y
# CONFIG_CORDIC is not set
# CONFIG_DDR is not set

Patch

From e2ae715d66bf4becfb85eb84b7150e23cf27df30 Mon Sep 17 00:00:00 2001
From: Kay Sievers <kay@vrfy.org>
Date: Fri, 15 Jun 2012 14:07:51 +0200
Subject: [PATCH] kmsg - kmsg_dump() use iterator to receive log buffer
 content

Provide an iterator to receive the log buffer content, and convert all
kmsg_dump() users to it.

The structured data in the kmsg buffer now contains binary data, which
should no longer be copied verbatim to the kmsg_dump() users.

The iterator should provide reliable access to the buffer data, and also
supports proper log line-aware chunking of data while iterating.

Signed-off-by: Kay Sievers <kay@vrfy.org>
Tested-by: Tony Luck <tony.luck@intel.com>
Reported-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Tested-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/platforms/pseries/nvram.c     |   61 +-------
 arch/x86/platform/mrst/early_printk_mrst.c |   13 +-
 drivers/mtd/mtdoops.c                      |   22 +--
 fs/pstore/platform.c                       |   34 ++---
 include/linux/kmsg_dump.h                  |   45 +++++-
 kernel/printk.c                            |  220 ++++++++++++++++++++++++----
 6 files changed, 258 insertions(+), 137 deletions(-)

diff --git a/arch/powerpc/platforms/pseries/nvram.c b/arch/powerpc/platforms/pseries/nvram.c
index 36f957f..8733a86 100644
--- a/arch/powerpc/platforms/pseries/nvram.c
+++ b/arch/powerpc/platforms/pseries/nvram.c
@@ -62,21 +62,19 @@  static struct nvram_os_partition oops_log_partition = {
 };
 
 static const char *pseries_nvram_os_partitions[] = {
 	"ibm,rtas-log",
 	"lnx,oops-log",
 	NULL
 };
 
 static void oops_to_nvram(struct kmsg_dumper *dumper,
-		enum kmsg_dump_reason reason,
-		const char *old_msgs, unsigned long old_len,
-		const char *new_msgs, unsigned long new_len);
+			  enum kmsg_dump_reason reason);
 
 static struct kmsg_dumper nvram_kmsg_dumper = {
 	.dump = oops_to_nvram
 };
 
 /* See clobbering_unread_rtas_event() */
 #define NVRAM_RTAS_READ_TIMEOUT 5		/* seconds */
 static unsigned long last_unread_rtas_event;	/* timestamp */
 
@@ -498,76 +496,33 @@  int __init pSeries_nvram_init(void)
 
 	ppc_md.nvram_read	= pSeries_nvram_read;
 	ppc_md.nvram_write	= pSeries_nvram_write;
 	ppc_md.nvram_size	= pSeries_nvram_get_size;
 
 	return 0;
 }
 
 /*
- * Try to capture the last capture_len bytes of the printk buffer.  Return
- * the amount actually captured.
- */
-static size_t capture_last_msgs(const char *old_msgs, size_t old_len,
-				const char *new_msgs, size_t new_len,
-				char *captured, size_t capture_len)
-{
-	if (new_len >= capture_len) {
-		memcpy(captured, new_msgs + (new_len - capture_len),
-								capture_len);
-		return capture_len;
-	} else {
-		/* Grab the end of old_msgs. */
-		size_t old_tail_len = min(old_len, capture_len - new_len);
-		memcpy(captured, old_msgs + (old_len - old_tail_len),
-								old_tail_len);
-		memcpy(captured + old_tail_len, new_msgs, new_len);
-		return old_tail_len + new_len;
-	}
-}
-
-/*
  * Are we using the ibm,rtas-log for oops/panic reports?  And if so,
  * would logging this oops/panic overwrite an RTAS event that rtas_errd
  * hasn't had a chance to read and process?  Return 1 if so, else 0.
  *
  * We assume that if rtas_errd hasn't read the RTAS event in
  * NVRAM_RTAS_READ_TIMEOUT seconds, it's probably not going to.
  */
 static int clobbering_unread_rtas_event(void)
 {
 	return (oops_log_partition.index == rtas_log_partition.index
 		&& last_unread_rtas_event
 		&& get_seconds() - last_unread_rtas_event <=
 						NVRAM_RTAS_READ_TIMEOUT);
 }
 
-/* Squeeze out each line's <n> severity prefix. */
-static size_t elide_severities(char *buf, size_t len)
-{
-	char *in, *out, *buf_end = buf + len;
-	/* Assume a <n> at the very beginning marks the start of a line. */
-	int newline = 1;
-
-	in = out = buf;
-	while (in < buf_end) {
-		if (newline && in+3 <= buf_end &&
-				*in == '<' && isdigit(in[1]) && in[2] == '>') {
-			in += 3;
-			newline = 0;
-		} else {
-			newline = (*in == '\n');
-			*out++ = *in++;
-		}
-	}
-	return out - buf;
-}
-
 /* Derived from logfs_compress() */
 static int nvram_compress(const void *in, void *out, size_t inlen,
 							size_t outlen)
 {
 	int err, ret;
 
 	ret = -EIO;
 	err = zlib_deflateInit2(&stream, COMPR_LEVEL, Z_DEFLATED, WINDOW_BITS,
 						MEM_LEVEL, Z_DEFAULT_STRATEGY);
@@ -613,21 +568,19 @@  static int zip_oops(size_t text_len)
 
 /*
  * This is our kmsg_dump callback, called after an oops or panic report
  * has been written to the printk buffer.  We want to capture as much
  * of the printk buffer as possible.  First, capture as much as we can
  * that we think will compress sufficiently to fit in the lnx,oops-log
  * partition.  If that's too much, go back and capture uncompressed text.
  */
 static void oops_to_nvram(struct kmsg_dumper *dumper,
-		enum kmsg_dump_reason reason,
-		const char *old_msgs, unsigned long old_len,
-		const char *new_msgs, unsigned long new_len)
+			  enum kmsg_dump_reason reason)
 {
 	static unsigned int oops_count = 0;
 	static bool panicking = false;
 	static DEFINE_SPINLOCK(lock);
 	unsigned long flags;
 	size_t text_len;
 	unsigned int err_type = ERR_TYPE_KERNEL_PANIC_GZ;
 	int rc = -1;
 
@@ -654,26 +607,26 @@  static void oops_to_nvram(struct kmsg_dumper *dumper,
 	}
 
 	if (clobbering_unread_rtas_event())
 		return;
 
 	if (!spin_trylock_irqsave(&lock, flags))
 		return;
 
 	if (big_oops_buf) {
-		text_len = capture_last_msgs(old_msgs, old_len,
-			new_msgs, new_len, big_oops_buf, big_oops_buf_sz);
-		text_len = elide_severities(big_oops_buf, text_len);
+		kmsg_dump_get_buffer(dumper, false,
+				     big_oops_buf, big_oops_buf_sz, &text_len);
 		rc = zip_oops(text_len);
 	}
 	if (rc != 0) {
-		text_len = capture_last_msgs(old_msgs, old_len,
-				new_msgs, new_len, oops_data, oops_data_sz);
+		kmsg_dump_rewind(dumper);
+		kmsg_dump_get_buffer(dumper, true,
+				     oops_data, oops_data_sz, &text_len);
 		err_type = ERR_TYPE_KERNEL_PANIC;
 		*oops_len = (u16) text_len;
 	}
 
 	(void) nvram_write_os_partition(&oops_log_partition, oops_buf,
 		(int) (sizeof(*oops_len) + *oops_len), err_type, ++oops_count);
 
 	spin_unlock_irqrestore(&lock, flags);
 }
diff --git a/arch/x86/platform/mrst/early_printk_mrst.c b/arch/x86/platform/mrst/early_printk_mrst.c
index 3c6e328..028454f 100644
--- a/arch/x86/platform/mrst/early_printk_mrst.c
+++ b/arch/x86/platform/mrst/early_printk_mrst.c
@@ -104,31 +104,28 @@  static unsigned long mrst_spi_paddr = MRST_REGBASE_SPI0;
 
 static u32 *pclk_spi0;
 /* Always contains an accessible address, start with 0 */
 static struct dw_spi_reg *pspi;
 
 static struct kmsg_dumper dw_dumper;
 static int dumper_registered;
 
 static void dw_kmsg_dump(struct kmsg_dumper *dumper,
-			enum kmsg_dump_reason reason,
-			const char *s1, unsigned long l1,
-			const char *s2, unsigned long l2)
+			 enum kmsg_dump_reason reason)
 {
-	int i;
+	static char line[1024];
+	size_t len;
 
 	/* When run to this, we'd better re-init the HW */
 	mrst_early_console_init();
 
-	for (i = 0; i < l1; i++)
-		early_mrst_console.write(&early_mrst_console, s1 + i, 1);
-	for (i = 0; i < l2; i++)
-		early_mrst_console.write(&early_mrst_console, s2 + i, 1);
+	while (kmsg_dump_get_line(dumper, true, line, sizeof(line), &len))
+		early_mrst_console.write(&early_mrst_console, line, len);
 }
 
 /* Set the ratio rate to 115200, 8n1, IRQ disabled */
 static void max3110_write_config(void)
 {
 	u16 config;
 
 	config = 0xc001;
 	dw_writel(pspi, dr, config);
diff --git a/drivers/mtd/mtdoops.c b/drivers/mtd/mtdoops.c
index ae36d7e..551e316 100644
--- a/drivers/mtd/mtdoops.c
+++ b/drivers/mtd/mtdoops.c
@@ -298,44 +298,29 @@  static void find_next_position(struct mtdoops_context *cxt)
 	}
 
 	cxt->nextpage = maxpos;
 	cxt->nextcount = maxcount;
 
 	mtdoops_inc_counter(cxt);
 }
 
 static void mtdoops_do_dump(struct kmsg_dumper *dumper,
-		enum kmsg_dump_reason reason, const char *s1, unsigned long l1,
-		const char *s2, unsigned long l2)
+			    enum kmsg_dump_reason reason)
 {
 	struct mtdoops_context *cxt = container_of(dumper,
 			struct mtdoops_context, dump);
-	unsigned long s1_start, s2_start;
-	unsigned long l1_cpy, l2_cpy;
-	char *dst;
-
-	if (reason != KMSG_DUMP_OOPS &&
-	    reason != KMSG_DUMP_PANIC)
-		return;
 
 	/* Only dump oopses if dump_oops is set */
 	if (reason == KMSG_DUMP_OOPS && !dump_oops)
 		return;
 
-	dst = cxt->oops_buf + MTDOOPS_HEADER_SIZE; /* Skip the header */
-	l2_cpy = min(l2, record_size - MTDOOPS_HEADER_SIZE);
-	l1_cpy = min(l1, record_size - MTDOOPS_HEADER_SIZE - l2_cpy);
-
-	s2_start = l2 - l2_cpy;
-	s1_start = l1 - l1_cpy;
-
-	memcpy(dst, s1 + s1_start, l1_cpy);
-	memcpy(dst + l1_cpy, s2 + s2_start, l2_cpy);
+	kmsg_dump_get_buffer(dumper, true, cxt->oops_buf + MTDOOPS_HEADER_SIZE,
+			     record_size - MTDOOPS_HEADER_SIZE, NULL);
 
 	/* Panics must be written immediately */
 	if (reason != KMSG_DUMP_OOPS)
 		mtdoops_write(cxt, 1);
 
 	/* For other cases, schedule work to write it "nicely" */
 	schedule_work(&cxt->work_write);
 }
 
@@ -369,18 +354,19 @@  static void mtdoops_notify_add(struct mtd_info *mtd)
 
 	/* oops_page_used is a bit field */
 	cxt->oops_page_used = vmalloc(DIV_ROUND_UP(mtdoops_pages,
 			BITS_PER_LONG) * sizeof(unsigned long));
 	if (!cxt->oops_page_used) {
 		printk(KERN_ERR "mtdoops: could not allocate page array\n");
 		return;
 	}
 
+	cxt->dump.max_reason = KMSG_DUMP_OOPS;
 	cxt->dump.dump = mtdoops_do_dump;
 	err = kmsg_dump_register(&cxt->dump);
 	if (err) {
 		printk(KERN_ERR "mtdoops: registering kmsg dumper failed, error %d\n", err);
 		vfree(cxt->oops_page_used);
 		cxt->oops_page_used = NULL;
 		return;
 	}
 
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c
index 82c585f..03ce7a9 100644
--- a/fs/pstore/platform.c
+++ b/fs/pstore/platform.c
@@ -88,67 +88,57 @@  static const char *get_reason_str(enum kmsg_dump_reason reason)
 	}
 }
 
 /*
  * callback from kmsg_dump. (s2,l2) has the most recently
  * written bytes, older bytes are in (s1,l1). Save as much
  * as we can from the end of the buffer.
  */
 static void pstore_dump(struct kmsg_dumper *dumper,
-	    enum kmsg_dump_reason reason,
-	    const char *s1, unsigned long l1,
-	    const char *s2, unsigned long l2)
+			enum kmsg_dump_reason reason)
 {
-	unsigned long	s1_start, s2_start;
-	unsigned long	l1_cpy, l2_cpy;
-	unsigned long	size, total = 0;
-	char		*dst;
+	unsigned long	total = 0;
 	const char	*why;
 	u64		id;
-	int		hsize, ret;
 	unsigned int	part = 1;
 	unsigned long	flags = 0;
 	int		is_locked = 0;
+	int		ret;
 
 	why = get_reason_str(reason);
 
 	if (in_nmi()) {
 		is_locked = spin_trylock(&psinfo->buf_lock);
 		if (!is_locked)
 			pr_err("pstore dump routine blocked in NMI, may corrupt error record\n");
 	} else
 		spin_lock_irqsave(&psinfo->buf_lock, flags);
 	oopscount++;
 	while (total < kmsg_bytes) {
+		char *dst;
+		unsigned long size;
+		int hsize;
+		size_t len;
+
 		dst = psinfo->buf;
 		hsize = sprintf(dst, "%s#%d Part%d\n", why, oopscount, part);
 		size = psinfo->bufsize - hsize;
 		dst += hsize;
 
-		l2_cpy = min(l2, size);
-		l1_cpy = min(l1, size - l2_cpy);
-
-		if (l1_cpy + l2_cpy == 0)
+		if (!kmsg_dump_get_buffer(dumper, true, dst, size, &len))
 			break;
 
-		s2_start = l2 - l2_cpy;
-		s1_start = l1 - l1_cpy;
-
-		memcpy(dst, s1 + s1_start, l1_cpy);
-		memcpy(dst + l1_cpy, s2 + s2_start, l2_cpy);
-
 		ret = psinfo->write(PSTORE_TYPE_DMESG, reason, &id, part,
-				   hsize + l1_cpy + l2_cpy, psinfo);
+				    hsize + len, psinfo);
 		if (ret == 0 && reason == KMSG_DUMP_OOPS && pstore_is_mounted())
 			pstore_new_entry = 1;
-		l1 -= l1_cpy;
-		l2 -= l2_cpy;
-		total += l1_cpy + l2_cpy;
+
+		total += hsize + len;
 		part++;
 	}
 	if (in_nmi()) {
 		if (is_locked)
 			spin_unlock(&psinfo->buf_lock);
 	} else
 		spin_unlock_irqrestore(&psinfo->buf_lock, flags);
 }
 
diff --git a/include/linux/kmsg_dump.h b/include/linux/kmsg_dump.h
index 35f7237..af4eb5a 100644
--- a/include/linux/kmsg_dump.h
+++ b/include/linux/kmsg_dump.h
@@ -15,53 +15,84 @@ 
 #include <linux/errno.h>
 #include <linux/list.h>
 
 /*
  * Keep this list arranged in rough order of priority. Anything listed after
  * KMSG_DUMP_OOPS will not be logged by default unless printk.always_kmsg_dump
  * is passed to the kernel.
  */
 enum kmsg_dump_reason {
+	KMSG_DUMP_UNDEF,
 	KMSG_DUMP_PANIC,
 	KMSG_DUMP_OOPS,
 	KMSG_DUMP_EMERG,
 	KMSG_DUMP_RESTART,
 	KMSG_DUMP_HALT,
 	KMSG_DUMP_POWEROFF,
 };
 
 /**
  * struct kmsg_dumper - kernel crash message dumper structure
- * @dump:	The callback which gets called on crashes. The buffer is passed
- * 		as two sections, where s1 (length l1) contains the older
- * 		messages and s2 (length l2) contains the newer.
  * @list:	Entry in the dumper list (private)
+ * @dump:	Call into dumping code which will retrieve the data with
+ * 		through the record iterator
+ * @max_reason:	filter for highest reason number that should be dumped
  * @registered:	Flag that specifies if this is already registered
  */
 struct kmsg_dumper {
-	void (*dump)(struct kmsg_dumper *dumper, enum kmsg_dump_reason reason,
-			const char *s1, unsigned long l1,
-			const char *s2, unsigned long l2);
 	struct list_head list;
-	int registered;
+	void (*dump)(struct kmsg_dumper *dumper, enum kmsg_dump_reason reason);
+	enum kmsg_dump_reason max_reason;
+	bool active;
+	bool registered;
+
+	/* private state of the kmsg iterator */
+	u32 cur_idx;
+	u32 next_idx;
+	u64 cur_seq;
+	u64 next_seq;
 };
 
 #ifdef CONFIG_PRINTK
 void kmsg_dump(enum kmsg_dump_reason reason);
 
+bool kmsg_dump_get_line(struct kmsg_dumper *dumper, bool syslog,
+			char *line, size_t size, size_t *len);
+
+bool kmsg_dump_get_buffer(struct kmsg_dumper *dumper, bool syslog,
+			  char *buf, size_t size, size_t *len);
+
+void kmsg_dump_rewind(struct kmsg_dumper *dumper);
+
 int kmsg_dump_register(struct kmsg_dumper *dumper);
 
 int kmsg_dump_unregister(struct kmsg_dumper *dumper);
 #else
 static inline void kmsg_dump(enum kmsg_dump_reason reason)
 {
 }
 
+bool kmsg_dump_get_line(struct kmsg_dumper *dumper, bool syslog,
+			  const char *line, size_t size, size_t *len)
+{
+	return false;
+}
+
+bool kmsg_dump_get_buffer(struct kmsg_dumper *dumper, bool syslog,
+			    char *buf, size_t size, size_t *len)
+{
+	return false;
+}
+
+void kmsg_dump_rewind(struct kmsg_dumper *dumper)
+{
+}
+
 static inline int kmsg_dump_register(struct kmsg_dumper *dumper)
 {
 	return -EINVAL;
 }
 
 static inline int kmsg_dump_unregister(struct kmsg_dumper *dumper)
 {
 	return -EINVAL;
 }
diff --git a/kernel/printk.c b/kernel/printk.c
index f205c25..ceb4a2f 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -903,39 +903,41 @@  static int syslog_print_all(char __user *buf, int size, bool clear)
 		if (clear_seq < log_first_seq) {
 			/* messages are gone, move to first available one */
 			clear_seq = log_first_seq;
 			clear_idx = log_first_idx;
 		}
 
 		/*
 		 * Find first record that fits, including all following records,
 		 * into the user-provided buffer for this dump.
-		*/
+		 */
 		seq = clear_seq;
 		idx = clear_idx;
 		while (seq < log_next_seq) {
 			struct log *msg = log_from_idx(idx);
 
 			len += msg_print_text(msg, true, NULL, 0);
 			idx = log_next(idx);
 			seq++;
 		}
+
+		/* move first record forward until length fits into the buffer */
 		seq = clear_seq;
 		idx = clear_idx;
 		while (len > size && seq < log_next_seq) {
 			struct log *msg = log_from_idx(idx);
 
 			len -= msg_print_text(msg, true, NULL, 0);
 			idx = log_next(idx);
 			seq++;
 		}
 
-		/* last message in this dump */
+		/* last message fitting into this dump */
 		next_seq = log_next_seq;
 
 		len = 0;
 		while (len >= 0 && seq < next_seq) {
 			struct log *msg = log_from_idx(idx);
 			int textlen;
 
 			textlen = msg_print_text(msg, true, text, LOG_LINE_MAX);
 			if (textlen < 0) {
@@ -2294,54 +2296,216 @@  int kmsg_dump_unregister(struct kmsg_dumper *dumper)
 EXPORT_SYMBOL_GPL(kmsg_dump_unregister);
 
 static bool always_kmsg_dump;
 module_param_named(always_kmsg_dump, always_kmsg_dump, bool, S_IRUGO | S_IWUSR);
 
 /**
  * kmsg_dump - dump kernel log to kernel message dumpers.
  * @reason: the reason (oops, panic etc) for dumping
  *
- * Iterate through each of the dump devices and call the oops/panic
- * callbacks with the log buffer.
+ * Call each of the registered dumper's dump() callback, which can
+ * retrieve the kmsg records with kmsg_dump_get_line() or
+ * kmsg_dump_get_buffer().
  */
 void kmsg_dump(enum kmsg_dump_reason reason)
 {
-	u64 idx;
 	struct kmsg_dumper *dumper;
-	const char *s1, *s2;
-	unsigned long l1, l2;
 	unsigned long flags;
 
 	if ((reason > KMSG_DUMP_OOPS) && !always_kmsg_dump)
 		return;
 
-	/* Theoretically, the log could move on after we do this, but
-	   there's not a lot we can do about that. The new messages
-	   will overwrite the start of what we dump. */
+	rcu_read_lock();
+	list_for_each_entry_rcu(dumper, &dump_list, list) {
+		if (dumper->max_reason && reason > dumper->max_reason)
+			continue;
+
+		/* initialize iterator with data about the stored records */
+		dumper->active = true;
+
+		raw_spin_lock_irqsave(&logbuf_lock, flags);
+		dumper->cur_seq = clear_seq;
+		dumper->cur_idx = clear_idx;
+		dumper->next_seq = log_next_seq;
+		dumper->next_idx = log_next_idx;
+		raw_spin_unlock_irqrestore(&logbuf_lock, flags);
+
+		/* invoke dumper which will iterate over records */
+		dumper->dump(dumper, reason);
+
+		/* reset iterator */
+		dumper->active = false;
+	}
+	rcu_read_unlock();
+}
+
+/**
+ * kmsg_dump_get_line - retrieve one kmsg log line
+ * @dumper: registered kmsg dumper
+ * @syslog: include the "<4>" prefixes
+ * @line: buffer to copy the line to
+ * @size: maximum size of the buffer
+ * @len: length of line placed into buffer
+ *
+ * Start at the beginning of the kmsg buffer, with the oldest kmsg
+ * record, and copy one record into the provided buffer.
+ *
+ * Consecutive calls will return the next available record moving
+ * towards the end of the buffer with the youngest messages.
+ *
+ * A return value of FALSE indicates that there are no more records to
+ * read.
+ */
+bool kmsg_dump_get_line(struct kmsg_dumper *dumper, bool syslog,
+			char *line, size_t size, size_t *len)
+{
+	unsigned long flags;
+	struct log *msg;
+	size_t l = 0;
+	bool ret = false;
+
+	if (!dumper->active)
+		goto out;
 
 	raw_spin_lock_irqsave(&logbuf_lock, flags);
-	if (syslog_seq < log_first_seq)
-		idx = syslog_idx;
-	else
-		idx = log_first_idx;
+	if (dumper->cur_seq < log_first_seq) {
+		/* messages are gone, move to first available one */
+		dumper->cur_seq = log_first_seq;
+		dumper->cur_idx = log_first_idx;
+	}
 
-	if (idx > log_next_idx) {
-		s1 = log_buf;
-		l1 = log_next_idx;
+	/* last entry */
+	if (dumper->cur_seq >= log_next_seq) {
+		raw_spin_unlock_irqrestore(&logbuf_lock, flags);
+		goto out;
+	}
 
-		s2 = log_buf + idx;
-		l2 = log_buf_len - idx;
-	} else {
-		s1 = "";
-		l1 = 0;
+	msg = log_from_idx(dumper->cur_idx);
+	l = msg_print_text(msg, syslog,
+			      line, size);
+
+	dumper->cur_idx = log_next(dumper->cur_idx);
+	dumper->cur_seq++;
+	ret = true;
+	raw_spin_unlock_irqrestore(&logbuf_lock, flags);
+out:
+	if (len)
+		*len = l;
+	return ret;
+}
+EXPORT_SYMBOL_GPL(kmsg_dump_get_line);
+
+/**
+ * kmsg_dump_get_buffer - copy kmsg log lines
+ * @dumper: registered kmsg dumper
+ * @syslog: include the "<4>" prefixes
+ * @line: buffer to copy the line to
+ * @size: maximum size of the buffer
+ * @len: length of line placed into buffer
+ *
+ * Start at the end of the kmsg buffer and fill the provided buffer
+ * with as many of the the *youngest* kmsg records that fit into it.
+ * If the buffer is large enough, all available kmsg records will be
+ * copied with a single call.
+ *
+ * Consecutive calls will fill the buffer with the next block of
+ * available older records, not including the earlier retrieved ones.
+ *
+ * A return value of FALSE indicates that there are no more records to
+ * read.
+ */
+bool kmsg_dump_get_buffer(struct kmsg_dumper *dumper, bool syslog,
+			  char *buf, size_t size, size_t *len)
+{
+	unsigned long flags;
+	u64 seq;
+	u32 idx;
+	u64 next_seq;
+	u32 next_idx;
+	size_t l = 0;
+	bool ret = false;
+
+	if (!dumper->active)
+		goto out;
+
+	raw_spin_lock_irqsave(&logbuf_lock, flags);
+	if (dumper->cur_seq < log_first_seq) {
+		/* messages are gone, move to first available one */
+		dumper->cur_seq = log_first_seq;
+		dumper->cur_idx = log_first_idx;
+	}
+
+	/* last entry */
+	if (dumper->cur_seq >= dumper->next_seq) {
+		raw_spin_unlock_irqrestore(&logbuf_lock, flags);
+		goto out;
+	}
+
+	/* calculate length of entire buffer */
+	seq = dumper->cur_seq;
+	idx = dumper->cur_idx;
+	while (seq < dumper->next_seq) {
+		struct log *msg = log_from_idx(idx);
+
+		l += msg_print_text(msg, true, NULL, 0);
+		idx = log_next(idx);
+		seq++;
+	}
+
+	/* move first record forward until length fits into the buffer */
+	seq = dumper->cur_seq;
+	idx = dumper->cur_idx;
+	while (l > size && seq < dumper->next_seq) {
+		struct log *msg = log_from_idx(idx);
 
-		s2 = log_buf + idx;
-		l2 = log_next_idx - idx;
+		l -= msg_print_text(msg, true, NULL, 0);
+		idx = log_next(idx);
+		seq++;
 	}
+
+	/* last message in next interation */
+	next_seq = seq;
+	next_idx = idx;
+
+	l = 0;
+	while (seq < dumper->next_seq) {
+		struct log *msg = log_from_idx(idx);
+
+		l += msg_print_text(msg, syslog,
+				    buf + l, size - l);
+
+		idx = log_next(idx);
+		seq++;
+	}
+
+	dumper->next_seq = next_seq;
+	dumper->next_idx = next_idx;
+	ret = true;
 	raw_spin_unlock_irqrestore(&logbuf_lock, flags);
+out:
+	if (len)
+		*len = l;
+	return ret;
+}
+EXPORT_SYMBOL_GPL(kmsg_dump_get_buffer);
 
-	rcu_read_lock();
-	list_for_each_entry_rcu(dumper, &dump_list, list)
-		dumper->dump(dumper, reason, s1, l1, s2, l2);
-	rcu_read_unlock();
+/**
+ * kmsg_dump_rewind - reset the interator
+ * @dumper: registered kmsg dumper
+ *
+ * Reset the dumper's iterator so that kmsg_dump_get_line() and
+ * kmsg_dump_get_buffer() can be called again and used multiple
+ * times within the same dumper.dump() callback.
+ */
+void kmsg_dump_rewind(struct kmsg_dumper *dumper)
+{
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&logbuf_lock, flags);
+	dumper->cur_seq = clear_seq;
+	dumper->cur_idx = clear_idx;
+	dumper->next_seq = log_next_seq;
+	dumper->next_idx = log_next_idx;
+	raw_spin_unlock_irqrestore(&logbuf_lock, flags);
 }
+EXPORT_SYMBOL_GPL(kmsg_dump_rewind);
 #endif
-- 
1.7.10