# git rev-parse -q --verify 62906027091f1d02de44041524f0769f60bb9cf3^{commit}
62906027091f1d02de44041524f0769f60bb9cf3
already have revision, skipping fetch
# git checkout -q -f -B kisskb 62906027091f1d02de44041524f0769f60bb9cf3
# git clean -qxdf
# git log -1
commit 62906027091f1d02de44041524f0769f60bb9cf3
Author: Nicholas Piggin <npiggin@gmail.com>
Date:   Sun Dec 25 13:00:30 2016 +1000

    mm: add PageWaiters indicating tasks are waiting for a page bit
    
    Add a new page flag, PageWaiters, to indicate the page waitqueue has
    tasks waiting. This can be tested rather than testing waitqueue_active
    which requires another cacheline load.
    
    This bit is always set when the page has tasks on page_waitqueue(page),
    and is set and cleared under the waitqueue lock. It may be set when
    there are no tasks on the waitqueue, which will cause a harmless extra
    wakeup check that will clears the bit.
    
    The generic bit-waitqueue infrastructure is no longer used for pages.
    Instead, waitqueues are used directly with a custom key type. The
    generic code was not flexible enough to have PageWaiters manipulation
    under the waitqueue lock (which simplifies concurrency).
    
    This improves the performance of page lock intensive microbenchmarks by
    2-3%.
    
    Putting two bits in the same word opens the opportunity to remove the
    memory barrier between clearing the lock bit and testing the waiters
    bit, after some work on the arch primitives (e.g., ensuring memory
    operand widths match and cover both bits).
    
    Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
    Cc: Dave Hansen <dave.hansen@linux.intel.com>
    Cc: Bob Peterson <rpeterso@redhat.com>
    Cc: Steven Whitehouse <swhiteho@redhat.com>
    Cc: Andrew Lutomirski <luto@kernel.org>
    Cc: Andreas Gruenbacher <agruenba@redhat.com>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Mel Gorman <mgorman@techsingularity.net>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/bfin-uclinux/bin/bfin-uclinux-gcc --version
# < git log --format=%s --max-count=1 62906027091f1d02de44041524f0769f60bb9cf3
# < make -j 10 ARCH=blackfin O=/home/kisskb/slave/build/linus_BF527-AD7160-EVAL_defconfig_bfin CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/bfin-uclinux/bin/bfin-uclinux-  BF527-AD7160-EVAL_defconfig
# make -j 10 ARCH=blackfin O=/home/kisskb/slave/build/linus_BF527-AD7160-EVAL_defconfig_bfin CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/bfin-uclinux/bin/bfin-uclinux-  
make[1]: Entering directory '/home/kisskb/slave/build/linus_BF527-AD7160-EVAL_defconfig_bfin'
  GEN     ./Makefile
scripts/kconfig/conf  --silentoldconfig Kconfig
  CHK     include/config/kernel.release
  GEN     ./Makefile
  WRAP    arch/blackfin/include/generated/asm/auxvec.h
  WRAP    arch/blackfin/include/generated/asm/bitsperlong.h
  WRAP    arch/blackfin/include/generated/asm/bugs.h
  WRAP    arch/blackfin/include/generated/asm/cputime.h
  WRAP    arch/blackfin/include/generated/asm/current.h
  WRAP    arch/blackfin/include/generated/asm/device.h
  WRAP    arch/blackfin/include/generated/asm/div64.h
  WRAP    arch/blackfin/include/generated/asm/emergency-restart.h
  WRAP    arch/blackfin/include/generated/asm/errno.h
  WRAP    arch/blackfin/include/generated/asm/fb.h
  WRAP    arch/blackfin/include/generated/asm/futex.h
  WRAP    arch/blackfin/include/generated/asm/hw_irq.h
  WRAP    arch/blackfin/include/generated/asm/ipcbuf.h
  WRAP    arch/blackfin/include/generated/asm/ioctl.h
  WRAP    arch/blackfin/include/generated/asm/irq_regs.h
  WRAP    arch/blackfin/include/generated/asm/irq_work.h
  WRAP    arch/blackfin/include/generated/asm/kdebug.h
  WRAP    arch/blackfin/include/generated/asm/kmap_types.h
  WRAP    arch/blackfin/include/generated/asm/kvm_para.h
  CHK     include/generated/uapi/linux/version.h
  WRAP    arch/blackfin/include/generated/asm/local.h
  WRAP    arch/blackfin/include/generated/asm/local64.h
  WRAP    arch/blackfin/include/generated/asm/mcs_spinlock.h
  WRAP    arch/blackfin/include/generated/asm/mm-arch-hooks.h
  WRAP    arch/blackfin/include/generated/asm/mman.h
  UPD     include/generated/uapi/linux/version.h
  WRAP    arch/blackfin/include/generated/asm/msgbuf.h
  WRAP    arch/blackfin/include/generated/asm/param.h
  WRAP    arch/blackfin/include/generated/asm/percpu.h
  WRAP    arch/blackfin/include/generated/asm/pgalloc.h
  WRAP    arch/blackfin/include/generated/asm/preempt.h
  WRAP    arch/blackfin/include/generated/asm/resource.h
  WRAP    arch/blackfin/include/generated/asm/sembuf.h
  WRAP    arch/blackfin/include/generated/asm/serial.h
  WRAP    arch/blackfin/include/generated/asm/setup.h
  WRAP    arch/blackfin/include/generated/asm/shmbuf.h
  WRAP    arch/blackfin/include/generated/asm/shmparam.h
  WRAP    arch/blackfin/include/generated/asm/socket.h
  WRAP    arch/blackfin/include/generated/asm/sockios.h
  WRAP    arch/blackfin/include/generated/asm/statfs.h
  WRAP    arch/blackfin/include/generated/asm/termbits.h
  WRAP    arch/blackfin/include/generated/asm/termios.h
  WRAP    arch/blackfin/include/generated/asm/topology.h
  WRAP    arch/blackfin/include/generated/asm/trace_clock.h
  WRAP    arch/blackfin/include/generated/asm/types.h
  WRAP    arch/blackfin/include/generated/asm/ucontext.h
  WRAP    arch/blackfin/include/generated/asm/unaligned.h
  WRAP    arch/blackfin/include/generated/asm/user.h
  WRAP    arch/blackfin/include/generated/asm/word-at-a-time.h
  WRAP    arch/blackfin/include/generated/asm/xor.h
  HOSTCC  scripts/basic/bin2c
  UPD     include/config/kernel.release
  Using /home/kisskb/slave/src as source for kernel
  CHK     include/generated/utsrelease.h
  UPD     include/generated/utsrelease.h
  HOSTCC  scripts/kallsyms
  HOSTCC  scripts/pnmtologo
  HOSTCC  scripts/conmakehash
  CC      scripts/mod/empty.o
  HOSTCC  scripts/mod/mk_elfconfig
  CC      scripts/mod/devicetable-offsets.s
  GEN     scripts/mod/devicetable-offsets.h
  CHK     include/generated/timeconst.h
  CC      kernel/bounds.s
  UPD     include/generated/timeconst.h
  MKELF   scripts/mod/elfconfig.h
  HOSTCC  scripts/mod/modpost.o
  CHK     include/generated/bounds.h
  HOSTCC  scripts/mod/file2alias.o
  HOSTCC  scripts/mod/sumversion.o
  UPD     include/generated/bounds.h
  CC      arch/blackfin/kernel/asm-offsets.s
  CHK     include/generated/asm-offsets.h
  UPD     include/generated/asm-offsets.h
  CALL    /home/kisskb/slave/src/scripts/checksyscalls.sh
<stdin>:1268:2: warning: #warning syscall accept4 not implemented [-Wcpp]
<stdin>:1298:2: warning: #warning syscall userfaultfd not implemented [-Wcpp]
<stdin>:1301:2: warning: #warning syscall membarrier not implemented [-Wcpp]
<stdin>:1304:2: warning: #warning syscall mlock2 not implemented [-Wcpp]
<stdin>:1307:2: warning: #warning syscall copy_file_range not implemented [-Wcpp]
<stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp]
<stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp]
<stdin>:1316:2: warning: #warning syscall pkey_mprotect not implemented [-Wcpp]
<stdin>:1319:2: warning: #warning syscall pkey_alloc not implemented [-Wcpp]
<stdin>:1322:2: warning: #warning syscall pkey_free not implemented [-Wcpp]
  HOSTLD  scripts/mod/modpost
  CC      init/main.o
  CHK     include/generated/compile.h
  HOSTCC  usr/gen_init_cpio
  CC      init/do_mounts.o
  CC      init/do_mounts_rd.o
  CC      init/do_mounts_initrd.o
  CC      init/initramfs.o
  CC      init/calibrate.o
  UPD     include/generated/compile.h
  CC      arch/blackfin/mm/sram-alloc.o
  AS      arch/blackfin/kernel/entry.o
  AS      arch/blackfin/mach-common/cache.o
  CC      arch/blackfin/kernel/process.o
  CC      arch/blackfin/mach-common/cache-c.o
  AS      arch/blackfin/mach-common/entry.o
  AS      arch/blackfin/mach-common/head.o
  AS      arch/blackfin/mach-common/interrupt.o
  CC      init/init_task.o
  CC      arch/blackfin/mach-common/arch_checks.o
  GEN     usr/initramfs_data.cpio".gz"
  AS      usr/initramfs_data.o
  LD      usr/built-in.o
  CC      arch/blackfin/mach-bf527/ints-priority.o
  CC      arch/blackfin/mach-common/ints-priority.o
  CC      init/version.o
  CC      arch/blackfin/kernel/bfin_ksyms.o
  CC      arch/blackfin/kernel/ptrace.o
  CC      arch/blackfin/mm/isram-driver.o
  CC      arch/blackfin/mach-bf527/dma.o
  CC      arch/blackfin/mach-common/pm.o
  AS      arch/blackfin/mach-common/dpmc_modes.o
  CC      arch/blackfin/kernel/setup.o
  CC      arch/blackfin/mach-bf527/boards/ad7160eval.o
  CC      arch/blackfin/mm/init.o
  LD      arch/blackfin/mach-bf527/built-in.o
  CC      arch/blackfin/kernel/signal.o
  CC      arch/blackfin/kernel/cplb-nompu/cplbinit.o
  LD      init/mounts.o
  CC      arch/blackfin/mm/maccess.o
  LD      init/built-in.o
  CC      kernel/fork.o
  LD      certs/built-in.o
  CC      kernel/exec_domain.o
  CC      arch/blackfin/kernel/cplb-nompu/cplbmgr.o
  LD      arch/blackfin/mach-common/built-in.o
  CC      arch/blackfin/kernel/sys_bfin.o
  LD      arch/blackfin/mach-bf527/boards/built-in.o
  CC      arch/blackfin/kernel/traps.o
  CC      mm/filemap.o
  LD      arch/blackfin/mm/built-in.o
  CC      fs/open.o
  CC      ipc/util.o
  CC      ipc/msgutil.o
  LD      arch/blackfin/kernel/cplb-nompu/built-in.o
  CC      ipc/msg.o
  CC      arch/blackfin/kernel/irqchip.o
  CC      security/commoncap.o
  CC      ipc/sem.o
  LD      crypto/built-in.o
  CC      ipc/shm.o
  CC      fs/read_write.o
  CC      arch/blackfin/kernel/dma-mapping.o
  CC      arch/blackfin/kernel/flat.o
  CC      kernel/panic.o
  CC      ipc/syscall.o
  CC      block/bio.o
  CC      kernel/cpu.o
  AS      arch/blackfin/kernel/fixed_code.o
  CC      arch/blackfin/kernel/reboot.o
  CC      fs/file_table.o
  LD      security/built-in.o
  CC      fs/super.o
  CC      arch/blackfin/kernel/bfin_dma.o
  CC      arch/blackfin/kernel/exception.o
  CC      arch/blackfin/kernel/dumpstack.o
  CC      arch/blackfin/kernel/time-ts.o
  CC      mm/mempool.o
  CC      ipc/ipc_sysctl.o
  CC      kernel/exit.o
  CC      fs/char_dev.o
  LD      drivers/amba/built-in.o
  LD      drivers/auxdisplay/built-in.o
  CC      drivers/base/component.o
  LD      ipc/built-in.o
  CC      kernel/softirq.o
  LD      sound/built-in.o
  CC      arch/blackfin/kernel/bfin_gpio.o
  CC      kernel/resource.o
  CC      kernel/sysctl.o
  CC      fs/stat.o
  CC      drivers/base/core.o
  CC      drivers/base/bus.o
  CC      mm/oom_kill.o
  CC      block/elevator.o
  CC      arch/blackfin/kernel/gptimers.o
  CC      arch/blackfin/kernel/cplbinfo.o
  CC      arch/blackfin/kernel/module.o
  CC      fs/exec.o
  CC      mm/maccess.o
  CC      fs/pipe.o
  CC      fs/namei.o
  CC      mm/page_alloc.o
  CC      kernel/sysctl_binary.o
  CC      arch/blackfin/kernel/early_printk.o
  CC      block/blk-core.o
  CC      kernel/capability.o
  CC      block/blk-tag.o
  CC      drivers/base/dd.o
  CC      arch/blackfin/kernel/shadow_console.o
  CC      block/blk-sysfs.o
  CC      mm/page-writeback.o
  CC      arch/blackfin/kernel/trace.o
  LDS     arch/blackfin/kernel/vmlinux.lds
  CC      fs/fcntl.o
  CC      fs/ioctl.o
  CC      kernel/ptrace.o
  CC      drivers/base/syscore.o
  LD      arch/blackfin/kernel/built-in.o
  CC      drivers/base/driver.o
  CC      drivers/base/class.o
  CC      drivers/block/brd.o
  CC      drivers/block/loop.o
  CC      block/blk-flush.o
  CC      block/blk-settings.o
  CC      kernel/user.o
  CC      kernel/signal.o
  CC      drivers/base/platform.o
  CC      fs/readdir.o
  CC      kernel/sys.o
  CC      kernel/kmod.o
  CC      kernel/workqueue.o
  CC      drivers/base/cpu.o
  CC      block/blk-ioc.o
  CC      mm/readahead.o
  CC      fs/select.o
  CC      fs/dcache.o
  LD      firmware/built-in.o
  LD      drivers/block/built-in.o
  CC      net/socket.o
  CC      block/blk-map.o
  CC      drivers/base/firmware.o
  CC      drivers/base/init.o
  CC      drivers/base/map.o
  CC      block/blk-exec.o
  CC      mm/swap.o
  CC      drivers/base/devres.o
  CC      kernel/pid.o
  CC      block/blk-merge.o
  CC      block/blk-softirq.o
  CC      mm/truncate.o
  CC      block/blk-timeout.o
  CC      drivers/base/attribute_container.o
  LD      net/802/built-in.o
  CC      drivers/base/transport_class.o
  CC      net/core/sock.o
  CC      net/core/request_sock.o
  CC      kernel/task_work.o
  CC      block/blk-lib.o
  CC      fs/inode.o
  CC      drivers/base/topology.o
  CC      block/blk-mq.o
  CC      block/blk-mq-tag.o
  CC      mm/vmscan.o
  CC      kernel/extable.o
  CC      kernel/params.o
  CC      drivers/base/container.o
  CC      drivers/base/property.o
  CC      kernel/kthread.o
  CC      kernel/sys_ni.o
  CC      net/core/skbuff.o
  CC      net/core/datagram.o
  CC      mm/shmem.o
  CC      kernel/nsproxy.o
  CC      kernel/notifier.o
  CC      fs/attr.o
  CC      fs/bad_inode.o
  CC      kernel/ksysfs.o
  CC      kernel/cred.o
  CC      block/blk-stat.o
  CC      drivers/base/cacheinfo.o
  CC      fs/file.o
  CC      fs/filesystems.o
  CC      fs/namespace.o
  CC      fs/seq_file.o
  CC      drivers/base/power/sysfs.o
  CC      block/blk-mq-sysfs.o
  CC      mm/util.o
  CC      kernel/reboot.o
  CC      kernel/async.o
  LD      drivers/base/test/built-in.o
  CC      drivers/base/dma-mapping.o
  CC      drivers/base/power/generic_ops.o
  CC      drivers/base/power/common.o
  CC      drivers/base/firmware_class.o
  CC      block/blk-mq-cpumap.o
  CC      mm/mmzone.o
  CC      block/ioctl.o
  CC      kernel/range.o
  CC      kernel/smpboot.o
  CC      kernel/ucount.o
  CC      mm/vmstat.o
  CC      mm/backing-dev.o
  CC      mm/mm_init.o
  CC      drivers/base/power/qos.o
  CC      mm/mmu_context.o
  CC      mm/percpu.o
  CC      kernel/groups.o
  CC      block/genhd.o
  CC      block/scsi_ioctl.o
  CC      fs/xattr.o
  CC      fs/libfs.o
  CC      net/core/stream.o
  CC      net/core/scm.o
  CC      net/core/gen_stats.o
  CC      drivers/base/power/runtime.o
  CC      kernel/bpf/core.o
  CC      kernel/irq/irqdesc.o
  CC      mm/slab_common.o
  CC      kernel/irq/handle.o
  CC      fs/fs-writeback.o
  CC      net/core/gen_estimator.o
  LD      drivers/bus/built-in.o
  CC      net/core/net_namespace.o
  CC      block/partition-generic.o
  LD      kernel/livepatch/built-in.o
  LD      drivers/cdrom/built-in.o
  CC      net/core/secure_seq.o
  CC      mm/compaction.o
  CC      kernel/irq/manage.o
  CC      drivers/base/power/wakeirq.o
  CC      drivers/base/power/main.o
  CC      drivers/base/power/wakeup.o
  CC      mm/vmacache.o
  CC      net/core/flow_dissector.o
  CC      net/core/sysctl_net_core.o
  LD      kernel/bpf/built-in.o
  CC      net/core/dev.o
  CC      mm/interval_tree.o
  CC      mm/list_lru.o
  CC      block/ioprio.o
  CC      kernel/irq/spurious.o
  CC      fs/pnode.o
  CC      fs/splice.o
  CC      block/badblocks.o
  CC      kernel/irq/resend.o
  CC      mm/workingset.o
  CC      mm/debug.o
  CC      fs/sync.o
  LD      drivers/base/power/built-in.o
  CC      drivers/base/module.o
  CC      fs/utimes.o
  CC      kernel/irq/chip.o
  CC      kernel/irq/dummychip.o
  CC      block/partitions/check.o
  LD      drivers/base/built-in.o
  CC      block/partitions/msdos.o
  CC      drivers/char/mem.o
  CC      drivers/char/random.o
  CC      mm/nommu.o
  CC      mm/init-mm.o
  CC      mm/bootmem.o
  CC      fs/stack.o
  CC      mm/fadvise.o
  LD      drivers/char/ipmi/built-in.o
  CC      kernel/irq/devres.o
  CC      kernel/locking/mutex.o
  CC      fs/fs_struct.o
  CC      block/partitions/efi.o
  CC      kernel/irq/autoprobe.o
  CC      fs/statfs.o
  CC      fs/fs_pin.o
  CC      block/noop-iosched.o
  CC      fs/nsfs.o
  CC      kernel/irq/irqdomain.o
  CC      drivers/char/misc.o
  CC      kernel/locking/semaphore.o
  CC      mm/dmapool.o
  CC      mm/slab.o
  LD      drivers/clk/bcm/built-in.o
  LD      drivers/clk/mvebu/built-in.o
  LD      drivers/clk/ti/built-in.o
  LD      drivers/clk/built-in.o
  CC      kernel/irq/proc.o
  CC      kernel/irq/pm.o
  LD      block/partitions/built-in.o
  CC      block/cfq-iosched.o
  CC      fs/buffer.o
  LD      drivers/char/agp/built-in.o
  CC      fs/block_dev.o
  LD      drivers/char/built-in.o
  LD      drivers/clocksource/built-in.o
  LD      drivers/firewire/built-in.o
  LD      drivers/firmware/broadcom/built-in.o
  LD      drivers/firmware/meson/built-in.o
  LD      drivers/firmware/tegra/built-in.o
  LD      drivers/firmware/built-in.o
  CC      drivers/gpio/devres.o
  CC      kernel/locking/rwsem.o
  LD      drivers/gpu/drm/bridge/built-in.o
  LD      drivers/gpu/drm/hisilicon/built-in.o
  LD      drivers/gpu/drm/i2c/built-in.o
  LD      drivers/gpu/drm/panel/built-in.o
  LD      drivers/gpu/drm/omapdrm/displays/built-in.o
  LD      drivers/gpu/vga/built-in.o
  LD      drivers/gpu/drm/omapdrm/dss/built-in.o
  CC      fs/direct-io.o
  LD      drivers/gpu/drm/omapdrm/built-in.o
  LD      drivers/gpu/drm/tilcdc/built-in.o
  LD      drivers/gpu/drm/built-in.o
  LD      drivers/gpu/built-in.o
  CC      fs/mpage.o
  LD      kernel/irq/built-in.o
  CC      fs/proc_namespace.o
  CC      kernel/locking/percpu-rwsem.o
  CC      drivers/gpio/gpiolib.o
  CC      kernel/locking/rtmutex.o
  CC      kernel/locking/rwsem-spinlock.o
  CC      net/core/ethtool.o
  LD      mm/built-in.o
  CC      drivers/hid/hid-core.o
  CC      drivers/hid/hid-input.o
  CC      arch/blackfin/lib/ashldi3.o
  CC      lib/lockref.o
  CC      arch/blackfin/lib/ashrdi3.o
  LD      kernel/locking/built-in.o
  CC      kernel/power/qos.o
  AS      arch/blackfin/lib/divsi3.o
  AS      arch/blackfin/lib/ins.o
  CC      arch/blackfin/lib/lshrdi3.o
  AS      arch/blackfin/lib/memchr.o
  CC      lib/bcd.o
  AS      arch/blackfin/lib/memcmp.o
  AS      arch/blackfin/lib/memcpy.o
  CC      lib/div64.o
  AS      arch/blackfin/lib/memmove.o
  AS      arch/blackfin/lib/memset.o
  AS      arch/blackfin/lib/modsi3.o
  AS      arch/blackfin/lib/muldi3.o
  AS      arch/blackfin/lib/outs.o
  AS      arch/blackfin/lib/smulsi3_highpart.o
  AS      arch/blackfin/lib/strcmp.o
  AS      arch/blackfin/lib/strcpy.o
  AS      arch/blackfin/lib/strncmp.o
  AS      arch/blackfin/lib/strncpy.o
  AS      arch/blackfin/lib/udivsi3.o
  AS      arch/blackfin/lib/umodsi3.o
  AS      arch/blackfin/lib/umulsi3_highpart.o
  AR      arch/blackfin/lib/lib.a
  EXPORTS arch/blackfin/lib/lib-ksyms.o
  LD      arch/blackfin/lib/built-in.o
  CC      kernel/power/main.o
  CC      lib/sort.o
  CC      lib/parser.o
  LD      block/built-in.o
  CC      lib/halfmd4.o
  CC      lib/debug_locks.o
  CC      lib/random32.o
  CC      kernel/power/console.o
  CC      drivers/gpio/gpiolib-legacy.o
  CC      net/ethernet/eth.o
  CC      kernel/power/process.o
  CC      drivers/hid/hid-generic.o
  CC      fs/configfs/inode.o
  CC      fs/configfs/file.o
  CC      lib/bust_spinlocks.o
  CC      drivers/gpio/gpiolib-devprop.o
  CC      fs/configfs/dir.o
  CC      fs/configfs/symlink.o
  CC      kernel/power/suspend.o
  CC      lib/kasprintf.o
  CC      net/core/dev_addr_lists.o
  CC      drivers/gpio/gpiolib-sysfs.o
  CC      net/core/dst.o
  CC      net/core/netevent.o
  CC      lib/bitmap.o
  LD      net/ethernet/built-in.o
  CC      lib/scatterlist.o
  CC      fs/configfs/mount.o
  LD      drivers/gpio/built-in.o
  CC      lib/gcd.o
  LD      kernel/power/built-in.o
  CC      kernel/printk/printk.o
  LD      drivers/hid/hid.o
  LD      drivers/hid/built-in.o
  LD      drivers/hwtracing/intel_th/built-in.o
  CC      drivers/i2c/i2c-boardinfo.o
  CC      net/ipv6/addrconf_core.o
  CC      drivers/i2c/i2c-core.o
  CC      net/ipv6/exthdrs_core.o
  CC      net/ipv6/ip6_checksum.o
  CC      lib/lcm.o
  CC      net/ipv6/ip6_icmp.o
  CC      fs/configfs/item.o
  CC      net/core/neighbour.o
  CC      lib/list_sort.o
  CC      lib/uuid.o
  CC      net/netlink/af_netlink.o
  CC      lib/flex_array.o
  CC      net/sched/sch_generic.o
  LD      fs/configfs/configfs.o
  LD      fs/configfs/built-in.o
  CC      fs/devpts/inode.o
  CC      net/sched/sch_mq.o
  CC      lib/iov_iter.o
  CC      lib/clz_ctz.o
/home/kisskb/slave/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/home/kisskb/slave/src/kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
  CC      net/netlink/genetlink.o
  LD      net/ipv6/built-in.o
  LD      fs/devpts/devpts.o
  LD      fs/devpts/built-in.o
  CC      net/unix/af_unix.o
  LD      fs/exofs/built-in.o
  CC      fs/exportfs/expfs.o
  CC      drivers/i2c/algos/i2c-algo-bit.o
  CC      kernel/printk/nmi.o
  CC      drivers/i2c/busses/i2c-bfin-twi.o
  LD      net/sched/built-in.o
  LD      drivers/i2c/muxes/built-in.o
  LD      fs/exportfs/exportfs.o
  LD      fs/exportfs/built-in.o
  LD      drivers/idle/built-in.o
  CC      fs/ext2/balloc.o
  LD      kernel/printk/built-in.o
  CC      fs/fat/cache.o
  CC      kernel/rcu/update.o
  LD      drivers/i2c/algos/built-in.o
  CC      fs/fat/dir.o
  CC      kernel/rcu/sync.o
  LD      drivers/i2c/busses/built-in.o
  CC      fs/fat/fatent.o
  LD      drivers/i2c/built-in.o
  CC      drivers/input/input.o
  CC      kernel/rcu/srcu.o
  CC      fs/ext2/dir.o
  CC      net/core/rtnetlink.o
  CC      net/core/utils.o
  CC      lib/bsearch.o
  CC      lib/find_bit.o
  LD      net/netlink/built-in.o
  CC      fs/ext2/file.o
  CC      lib/llist.o
  CC      kernel/rcu/tree.o
  CC      lib/memweight.o
  CC      lib/kfifo.o
  CC      net/sysctl_net.o
  CC      fs/fat/file.o
  CC      drivers/input/input-compat.o
  CC      fs/ext2/ialloc.o
  CC      net/unix/garbage.o
  CC      fs/ext2/inode.o
  CC      fs/ext2/ioctl.o
  CC      lib/percpu-refcount.o
  CC      lib/percpu_ida.o
  CC      drivers/input/input-mt.o
  CC      fs/ext2/namei.o
  CC      fs/fat/inode.o
  CC      fs/fat/misc.o
  CC      fs/fat/nfs.o
  CC      net/unix/sysctl_net_unix.o
  CC      lib/rhashtable.o
  CC      drivers/input/ff-core.o
  CC      fs/ext2/super.o
  LD      virt/lib/built-in.o
  LD      virt/built-in.o
  CC      fs/kernfs/mount.o
  CC      fs/nls/nls_base.o
  CC      fs/nls/nls_cp437.o
  LD      net/unix/unix.o
  LD      net/unix/built-in.o
  CC      fs/nls/nls_iso8859-1.o
  CC      net/core/link_watch.o
  CC      drivers/input/evdev.o
  CC      fs/kernfs/inode.o
  CC      fs/kernfs/dir.o
  LD      fs/nls/built-in.o
  CC      fs/kernfs/file.o
  CC      drivers/input/touchscreen/of_touchscreen.o
  LD      kernel/rcu/built-in.o
  CC      kernel/sched/core.o
  CC      fs/fat/namei_vfat.o
  CC      fs/ext2/symlink.o
  CC      lib/reciprocal_div.o
  CC      lib/once.o
  LD      drivers/input/touchscreen/built-in.o
  CC      lib/string_helpers.o
  LD      fs/ext2/ext2.o
  CC      net/core/filter.o
  LD      fs/ext2/built-in.o
  CC      net/core/sock_diag.o
  CC      kernel/time/time.o
  CC      kernel/time/timer.o
  CC      kernel/time/hrtimer.o
  LD      drivers/input/input-core.o
  LD      drivers/input/built-in.o
  LD      drivers/irqchip/built-in.o
  LD      drivers/lguest/built-in.o
  LD      drivers/macintosh/built-in.o
  LD      drivers/media/common/b2c2/built-in.o
  LD      drivers/media/common/saa7146/built-in.o
  CC      fs/kernfs/symlink.o
  LD      drivers/media/common/siano/built-in.o
  LD      drivers/media/common/v4l2-tpg/built-in.o
  LD      drivers/media/common/built-in.o
  LD      drivers/media/firewire/built-in.o
  LD      drivers/media/i2c/soc_camera/built-in.o
  LD      drivers/media/i2c/built-in.o
  LD      drivers/media/mmc/siano/built-in.o
  CC      lib/hexdump.o
  LD      drivers/media/mmc/built-in.o
  LD      drivers/media/pci/b2c2/built-in.o
  LD      drivers/media/pci/ddbridge/built-in.o
  LD      drivers/media/pci/dm1105/built-in.o
  LD      drivers/media/pci/mantis/built-in.o
  LD      drivers/media/pci/netup_unidvb/built-in.o
  LD      drivers/media/pci/ngene/built-in.o
  LD      drivers/media/pci/pluto2/built-in.o
  LD      drivers/media/pci/pt1/built-in.o
  LD      drivers/media/pci/pt3/built-in.o
  LD      drivers/media/pci/saa7146/built-in.o
  LD      drivers/media/pci/smipcie/built-in.o
  LD      drivers/media/pci/ttpci/built-in.o
  LD      drivers/media/pci/built-in.o
  CC      fs/fat/namei_msdos.o
  CC      lib/kstrtox.o
  LD      drivers/media/platform/blackfin/built-in.o
  LD      drivers/media/platform/omap/built-in.o
  LD      drivers/media/platform/built-in.o
  LD      drivers/media/rc/keymaps/built-in.o
  LD      drivers/media/rc/built-in.o
  LD      fs/kernfs/built-in.o
  LD      drivers/media/spi/built-in.o
  LD      drivers/media/tuners/built-in.o
  CC      kernel/sched/loadavg.o
  CC      kernel/time/timekeeping.o
  LD      drivers/media/usb/b2c2/built-in.o
  LD      drivers/media/usb/dvb-usb/built-in.o
  LD      drivers/media/usb/dvb-usb-v2/built-in.o
  LD      drivers/media/usb/s2255/built-in.o
  LD      drivers/media/usb/siano/built-in.o
  CC      kernel/time/ntp.o
  LD      drivers/media/usb/stkwebcam/built-in.o
  CC      kernel/freezer.o
  LD      drivers/media/usb/ttusb-budget/built-in.o
  LD      drivers/media/usb/ttusb-dec/built-in.o
  LD      drivers/media/usb/zr364xx/built-in.o
  LD      drivers/media/usb/built-in.o
  LD      drivers/media/built-in.o
  CC      kernel/time/clocksource.o
  LD      drivers/mfd/built-in.o
  LD      drivers/misc/cb710/built-in.o
  LD      drivers/misc/eeprom/built-in.o
  LD      drivers/misc/lis3lv02d/built-in.o
  LD      drivers/misc/mic/bus/built-in.o
  LD      drivers/misc/mic/built-in.o
  LD      drivers/misc/ti-st/built-in.o
  LD      drivers/misc/built-in.o
  CC      drivers/mmc/core/core.o
  CC      lib/iomap_copy.o
  CC      kernel/sched/clock.o
  CC      lib/devres.o
  LD      fs/fat/fat.o
  LD      fs/fat/vfat.o
  LD      fs/fat/msdos.o
  CC      drivers/mmc/core/bus.o
  LD      fs/fat/built-in.o
  CC      fs/notify/fsnotify.o
  CC      fs/notify/notification.o
  CC      kernel/sched/cputime.o
  CC      kernel/sched/idle_task.o
  CC      lib/smp_processor_id.o
  CC      lib/bitrev.o
  CC      drivers/mmc/core/host.o
  CC      net/core/dev_ioctl.o
  CC      lib/crc-itu-t.o
  CC      drivers/mmc/host/mmc_spi.o
  CC      fs/notify/group.o
  CC      kernel/futex.o
  CC      net/core/tso.o
  HOSTCC  lib/gen_crc32table
  CC      kernel/sched/fair.o
  CC      lib/crc7.o
  CC      fs/notify/inode_mark.o
  CC      fs/notify/mark.o
  CC      lib/fonts/fonts.o
  CC      kernel/up.o
  CC      drivers/mmc/core/mmc.o
  CC      lib/fonts/font_8x8.o
  CC      net/core/sock_reuseport.o
  CC      lib/fonts/font_8x16.o
  CC      kernel/time/jiffies.o
  CC      fs/proc/nommu.o
  LD      drivers/mmc/host/built-in.o
  CC      fs/proc/task_nommu.o
  CC      fs/proc/inode.o
  LD      lib/fonts/font.o
  LD      lib/fonts/built-in.o
  CC      fs/notify/vfsmount_mark.o
  CC      lib/lz4/lz4_decompress.o
  CC      kernel/sched/rt.o
  CC      kernel/time/timer_list.o
  LD      lib/lz4/built-in.o
  CC      kernel/time/timeconv.o
  CC      lib/lzo/lzo1x_decompress_safe.o
  LD      fs/quota/built-in.o
  CC      kernel/time/timecounter.o
  CC      fs/notify/fdinfo.o
  LD      fs/notify/dnotify/built-in.o
  CC      fs/ramfs/inode.o
  CC      net/core/net-sysfs.o
  CC      fs/sysfs/file.o
  CC      fs/proc/root.o
  LD      lib/lzo/lzo_decompress.o
  LD      lib/lzo/built-in.o
  CC      lib/xz/xz_dec_syms.o
  CC      lib/xz/xz_dec_stream.o
  CC      kernel/time/alarmtimer.o
  LD      fs/notify/fanotify/built-in.o
  CC      drivers/mmc/core/mmc_ops.o
  CC      fs/notify/inotify/inotify_fsnotify.o
  CC      kernel/sched/deadline.o
  CC      kernel/sched/stop_task.o
  CC      fs/proc/base.o
  CC      fs/ramfs/file-nommu.o
  CC      fs/notify/inotify/inotify_user.o
  CC      fs/sysfs/dir.o
  CC      lib/xz/xz_dec_lzma2.o
  CC      lib/xz/xz_dec_bcj.o
  CC      kernel/time/posix-timers.o
  CC      kernel/sched/wait.o
  CC      drivers/mmc/core/sd.o
  CC      fs/sysfs/symlink.o
  LD      fs/ramfs/ramfs.o
  LD      fs/ramfs/built-in.o
  CC      drivers/mmc/core/sd_ops.o
  LD      fs/notify/inotify/built-in.o
  LD      fs/notify/built-in.o
  CC      drivers/mmc/core/sdio.o
  CC      fs/sysfs/mount.o
  CC      net/core/net-procfs.o
  LD      lib/xz/xz_dec.o
  LD      lib/xz/built-in.o
  CC      lib/syscall.o
  CC      lib/zlib_inflate/inffast.o
  CC      kernel/sched/swait.o
  CC      kernel/sched/completion.o
  CC      lib/zlib_inflate/inflate.o
  CC      fs/sysfs/group.o
  CC      fs/eventpoll.o
  CC      fs/anon_inodes.o
  CC      fs/signalfd.o
  CC      kernel/time/posix-cpu-timers.o
  CC      drivers/mmc/core/sdio_ops.o
  CC      fs/proc/generic.o
  CC      kernel/sched/idle.o
  LD      fs/sysfs/built-in.o
  CC      fs/proc/array.o
  LD      net/core/built-in.o
  CC      fs/proc/fd.o
  LD      net/built-in.o
  CC      fs/proc/proc_tty.o
  CC      lib/zlib_inflate/infutil.o
  CC      drivers/mmc/core/sdio_bus.o
  CC      lib/nlattr.o
  CC      fs/proc/cmdline.o
  CC      fs/proc/consoles.o
  CC      lib/zlib_inflate/inftrees.o
  LD      kernel/sched/built-in.o
  CC      fs/proc/cpuinfo.o
  CC      kernel/uid16.o
  CC      fs/proc/devices.o
  CC      drivers/mmc/core/sdio_cis.o
  CC      fs/proc/interrupts.o
  CC      kernel/time/posix-clock.o
  CC      lib/zlib_inflate/inflate_syms.o
  CC      fs/timerfd.o
  CC      fs/proc/loadavg.o
  CC      fs/proc/meminfo.o
  CC      fs/proc/stat.o
  CC      fs/proc/uptime.o
  LD      lib/zlib_inflate/zlib_inflate.o
  LD      lib/zlib_inflate/built-in.o
  CC      fs/proc/version.o
  CC      lib/checksum.o
  CC      drivers/mmc/core/sdio_io.o
  CC      drivers/mmc/core/sdio_irq.o
  CC      fs/proc/softirqs.o
  CC      kernel/time/itimer.o
  CC      lib/atomic64.o
  CC      kernel/time/clockevents.o
  CC      kernel/time/tick-common.o
  CC      fs/eventfd.o
  CC      fs/locks.o
  CC      fs/proc/namespaces.o
  CC      drivers/mmc/core/quirks.o
  CC      lib/dynamic_queue_limits.o
  CC      drivers/mmc/core/slot-gpio.o
  CC      lib/net_utils.o
  CC      drivers/mmc/core/block.o
  CC      drivers/mmc/core/queue.o
  CC      lib/sbitmap.o
  CC      kernel/module.o
  CC      fs/proc/self.o
  LD      kernel/time/built-in.o
  CC      fs/proc/thread_self.o
  CC      lib/argv_split.o
  CC      lib/bug.o
  CC      kernel/kallsyms.o
  CC      fs/binfmt_script.o
  CC      fs/binfmt_elf_fdpic.o
  GZIP    kernel/config_data.gz
  CC      drivers/net/Space.o
  CC      fs/proc/proc_sysctl.o
  CC      lib/chacha20.o
  LD      drivers/mmc/core/mmc_core.o
  LD      drivers/nfc/built-in.o
  CC      lib/cmdline.o
  LD      drivers/nvme/host/built-in.o
  CC      kernel/hung_task.o
  LD      drivers/nvme/target/built-in.o
  LD      drivers/nvme/built-in.o
  CC      kernel/utsname_sysctl.o
  CC      kernel/elfcore.o
  CC      lib/ctype.o
  CC      lib/dec_and_lock.o
  CC      lib/decompress.o
  CC      lib/decompress_bunzip2.o
  CC      kernel/irq_work.o
  CC      drivers/net/loopback.o
  LD      drivers/platform/built-in.o
  LD      drivers/power/built-in.o
  LD      drivers/ptp/built-in.o
  LD      drivers/mmc/core/mmc_block.o
  LD      drivers/mmc/core/built-in.o
  LD      drivers/pwm/built-in.o
  LD      drivers/mmc/built-in.o
  LD      drivers/soc/bcm/built-in.o
  LD      drivers/soc/fsl/built-in.o
  CC      kernel/membarrier.o
  LD      drivers/soc/built-in.o
  CC      drivers/spi/spi.o
  CC      drivers/spi/spi-bfin5xx.o
  CC      kernel/memremap.o
  CC      fs/proc/proc_net.o
  CC      fs/proc/kmsg.o
  CC      fs/binfmt_flat.o
  CC      lib/decompress_inflate.o
  LD      drivers/net/built-in.o
  CC      drivers/tty/tty_io.o
  CC      drivers/tty/n_tty.o
  CC      drivers/tty/tty_ioctl.o
  CHK     kernel/config_data.h
  UPD     kernel/config_data.h
  CC      drivers/tty/tty_ldisc.o
  CC      kernel/configs.o
  CC      lib/decompress_unlz4.o
  LD      fs/proc/proc.o
  LD      fs/proc/built-in.o
  CC      drivers/tty/tty_buffer.o
  CC      fs/coredump.o
  CC      fs/drop_caches.o
  LD      kernel/built-in.o
  CC      drivers/tty/tty_port.o
  CC      lib/decompress_unlzma.o
  CC      drivers/usb/common/common.o
  CC      drivers/usb/gadget/usbstring.o
  CC      drivers/usb/gadget/config.o
  CC      drivers/usb/gadget/epautoconf.o
  LD      drivers/usb/common/usb-common.o
  LD      drivers/usb/common/built-in.o
  CC      drivers/usb/gadget/composite.o
  CC      lib/decompress_unlzo.o
  LD      drivers/video/backlight/built-in.o
  CC      drivers/video/console/dummycon.o
  CC      fs/fhandle.o
  CC      drivers/tty/tty_mutex.o
  CC      drivers/usb/gadget/functions.o
  CC      drivers/usb/gadget/configfs.o
  CC      drivers/tty/tty_ldsem.o
  LD      drivers/spi/built-in.o
  CC      drivers/tty/pty.o
  CC      lib/decompress_unxz.o
  CC      drivers/video/console/fbcon.o
  LD      fs/built-in.o
  LD      drivers/tty/ipwireless/built-in.o
  CC      drivers/video/fbdev/core/fb_cmdline.o
  CC      drivers/video/fbdev/core/fb_notify.o
  CC      drivers/video/fbdev/core/fbmem.o
  CC      drivers/tty/serial/serial_core.o
  CC      lib/dma-noop.o
  CC      drivers/video/fbdev/core/fbmon.o
  CC      lib/dump_stack.o
  CC      drivers/video/fbdev/core/fbcmap.o
  CC      drivers/usb/musb/musb_core.o
  CC      drivers/usb/gadget/u_f.o
  CC      lib/earlycpio.o
  CC      drivers/tty/vt/vt_ioctl.o
  CC      lib/extable.o
  CC      lib/flex_proportions.o
  CC      lib/idr.o
  CC      drivers/usb/gadget/function/f_acm.o
  CC      drivers/usb/gadget/function/u_serial.o
  CC      drivers/usb/gadget/function/f_serial.o
  CC      drivers/video/console/bitblit.o
  CC      drivers/video/fbdev/core/fbsysfs.o
  CC      drivers/tty/serial/bfin_uart.o
  LD      drivers/video/fbdev/omap2/omapfb/displays/built-in.o
  CC      drivers/video/logo/logo.o
  LD      drivers/video/fbdev/omap2/omapfb/dss/built-in.o
  LD      drivers/video/fbdev/omap2/omapfb/built-in.o
  LD      drivers/video/fbdev/omap2/built-in.o
  LOGO    drivers/video/logo/logo_blackfin_clut224.c
  CC      drivers/tty/vt/vc_screen.o
  CC      drivers/usb/gadget/function/f_obex.o
  CC      lib/int_sqrt.o
  CC      lib/irq_regs.o
  LOGO    drivers/video/logo/logo_superh_mono.c
  LOGO    drivers/video/logo/logo_linux_mono.c
  LOGO    drivers/video/logo/logo_superh_vga16.c
  LOGO    drivers/video/logo/clut_vga16.c
  LOGO    drivers/video/logo/logo_linux_vga16.c
  LOGO    drivers/video/logo/logo_blackfin_vga16.c
  LOGO    drivers/video/logo/logo_spe_clut224.c
  LOGO    drivers/video/logo/logo_mac_clut224.c
  LOGO    drivers/video/logo/logo_superh_clut224.c
  LOGO    drivers/video/logo/logo_sun_clut224.c
  CC      lib/is_single_threaded.o
  LOGO    drivers/video/logo/logo_linux_clut224.c
  LOGO    drivers/video/logo/logo_parisc_clut224.c
  LOGO    drivers/video/logo/logo_dec_clut224.c
  LD      drivers/usb/phy/built-in.o
  LOGO    drivers/video/logo/logo_m32r_clut224.c
  CC      drivers/video/fbdev/core/modedb.o
  LOGO    drivers/video/logo/logo_sgi_clut224.c
  CC      drivers/video/logo/logo_blackfin_clut224.o
  CC      drivers/usb/gadget/legacy/serial.o
  LD      drivers/video/logo/built-in.o
  CC      lib/klist.o
  CC      drivers/usb/musb/musb_trace.o
  CC      drivers/usb/musb/musb_gadget_ep0.o
  CC      drivers/video/console/softcursor.o
  LD      drivers/usb/gadget/function/usb_f_acm.o
  LD      drivers/usb/gadget/function/usb_f_serial.o
  LD      drivers/usb/gadget/function/usb_f_obex.o
  LD      drivers/usb/gadget/function/built-in.o
  CC      drivers/usb/gadget/udc/core.o
  CC      drivers/usb/gadget/udc/trace.o
  CC      lib/kobject.o
  CC      drivers/tty/vt/selection.o
  CC      drivers/tty/vt/keyboard.o
  LD      drivers/usb/gadget/legacy/g_serial.o
  LD      drivers/usb/gadget/legacy/built-in.o
  CC      drivers/video/fbdev/core/fbcvt.o
  CC      lib/kobject_uevent.o
  LD      drivers/tty/serial/built-in.o
  CC      drivers/tty/vt/consolemap.o
  CONMK   drivers/tty/vt/consolemap_deftbl.c
  LD      drivers/usb/gadget/libcomposite.o
  CC      drivers/usb/musb/musb_gadget.o
  LD      drivers/video/console/built-in.o
  CC      lib/md5.o
  CC      drivers/tty/vt/vt.o
  SHIPPED drivers/tty/vt/defkeymap.c
  CC      lib/nmi_backtrace.o
  CC      drivers/tty/vt/consolemap_deftbl.o
  CC      drivers/tty/vt/defkeymap.o
  CC      lib/nodemask.o
  CC      lib/plist.o
  LD      drivers/usb/gadget/udc/udc-core.o
  LD      drivers/usb/gadget/udc/built-in.o
  LD      drivers/usb/gadget/built-in.o
  CC      lib/radix-tree.o
  CC      lib/ratelimit.o
  CC      lib/rbtree.o
  CC      lib/seq_buf.o
  LD      drivers/video/fbdev/core/fb.o
  LD      drivers/video/fbdev/core/built-in.o
  LD      drivers/video/fbdev/built-in.o
  LD      drivers/video/built-in.o
  CC      lib/sha1.o
  CC      lib/show_mem.o
  CC      lib/string.o
  CC      lib/timerqueue.o
  CC      lib/vsprintf.o
  CC      lib/win_minmax.o
  CC [M]  lib/crc-ccitt.o
  GEN     lib/crc32table.h
  CC      lib/crc32.o
  LD      drivers/usb/musb/musb_hdrc.o
  LD      drivers/usb/musb/built-in.o
  LD      drivers/usb/built-in.o
  LD      drivers/tty/vt/built-in.o
  LD      drivers/tty/built-in.o
  AR      lib/lib.a
  LD      drivers/built-in.o
  EXPORTS lib/lib-ksyms.o
  LD      lib/built-in.o
  GEN     .version
  CHK     include/generated/compile.h
  UPD     include/generated/compile.h
  CC      init/version.o
  LD      init/built-in.o
  LD      vmlinux.o
  MODPOST vmlinux.o
  KSYM    .tmp_kallsyms1.o
  KSYM    .tmp_kallsyms2.o
  LD      vmlinux
  SYSMAP  System.map
  OBJCOPY arch/blackfin/boot/vmlinux.bin
  Building modules, stage 2.
  GZIP    arch/blackfin/boot/vmlinux.bin.gz
  MODPOST 1 modules
  CC      lib/crc-ccitt.mod.o
  LD [M]  lib/crc-ccitt.ko
  UIMAGE  arch/blackfin/boot/uImage.gz
Image Name:   bf527-0.2-4.9.0-g6290602
Created:      Mon Dec 26 15:19:13 2016
Image Type:   Blackfin Linux Kernel Image (gzip compressed)
Data Size:    1446218 Bytes = 1412.32 kB = 1.38 MB
Load Address: 00001000
Entry Point:  0026c264
make[1]: Leaving directory '/home/kisskb/slave/build/linus_BF527-AD7160-EVAL_defconfig_bfin'
Completed OK
# rm -rf /home/kisskb/slave/build/linus_BF527-AD7160-EVAL_defconfig_bfin
# Build took: 0:00:39.430954