# git rev-parse -q --verify b32aadc1a8ed84afbe924cd2ced31cd6a2e67074^{commit}
b32aadc1a8ed84afbe924cd2ced31cd6a2e67074
already have revision, skipping fetch
# git checkout -q -f -B kisskb b32aadc1a8ed84afbe924cd2ced31cd6a2e67074
# git clean -qxdf
# git log -1
commit b32aadc1a8ed84afbe924cd2ced31cd6a2e67074
Author: Shreyas B. Prabhu <shreyas@linux.vnet.ibm.com>
Date:   Tue Jul 7 01:39:23 2015 +0530

    powerpc/powernv: Fix race in updating core_idle_state
    
    core_idle_state is maintained for each core. It uses 0-7 bits to track
    whether a thread in the core has entered fastsleep or winkle. 8th bit is
    used as a lock bit.
    The lock bit is set in these 2 scenarios-
     - The thread is first in subcore to wakeup from sleep/winkle.
     - If its the last thread in the core about to enter sleep/winkle
    
    While the lock bit is set, if any other thread in the core wakes up, it
    loops until the lock bit is cleared before proceeding in the wakeup
    path. This helps prevent race conditions w.r.t fastsleep workaround and
    prevents threads from switching to process context before core/subcore
    resources are restored.
    
    But, in the path to sleep/winkle entry, we currently don't check for
    lock-bit. This exposes us to following race when running with subcore
    on-
    
    First thread in the subcorea		Another thread in the same
    waking up		   		core entering sleep/winkle
    
    lwarx   r15,0,r14
    ori     r15,r15,PNV_CORE_IDLE_LOCK_BIT
    stwcx.  r15,0,r14
    [Code to restore subcore state]
    
    						lwarx   r15,0,r14
    						[clear thread bit]
    						stwcx.  r15,0,r14
    
    andi.   r15,r15,PNV_CORE_IDLE_THREAD_BITS
    stw     r15,0(r14)
    
    Here, after the thread entering sleep clears its thread bit in
    core_idle_state, the value is overwritten by the thread waking up.
    In such cases when the core enters fastsleep, code mistakes an idle
    thread as running. Because of this, the first thread waking up from
    fastsleep which is supposed to resync timebase skips it. So we can
    end up having a core with stale timebase value.
    
    This patch fixes the above race by looping on the lock bit even while
    entering the idle states.
    
    Signed-off-by: Shreyas B. Prabhu <shreyas@linux.vnet.ibm.com>
    Fixes: 7b54e9f213f76 'powernv/powerpc: Add winkle support for offline cpus'
    Cc: stable@vger.kernel.org # 3.19+
    Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version
# < git log --format=%s --max-count=1 b32aadc1a8ed84afbe924cd2ced31cd6a2e67074
# < make -j 240 ARCH=powerpc O=/home/kisskb/slave/build/mpe_mgcoge_defconfig_powerpc CROSS_COMPILE=/opt/cross/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  mgcoge_defconfig
warning: (USB_FSL_USB2) selects USB_FSL_MPH_DR_OF which has unmet direct dependencies (USB_SUPPORT && USB)
warning: (USB_FSL_USB2) selects USB_FSL_MPH_DR_OF which has unmet direct dependencies (USB_SUPPORT && USB)
# make -j 240 ARCH=powerpc O=/home/kisskb/slave/build/mpe_mgcoge_defconfig_powerpc CROSS_COMPILE=/opt/cross/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  
make[1]: Entering directory `/home/kisskb/slave/src'
make[2]: Entering directory `/home/kisskb/slave/build/mpe_mgcoge_defconfig_powerpc'
  GEN     ./Makefile
scripts/kconfig/conf  --silentoldconfig Kconfig
warning: (USB_FSL_USB2) selects USB_FSL_MPH_DR_OF which has unmet direct dependencies (USB_SUPPORT && USB)
warning: (USB_FSL_USB2) selects USB_FSL_MPH_DR_OF which has unmet direct dependencies (USB_SUPPORT && USB)
make[2]: Leaving directory `/home/kisskb/slave/build/mpe_mgcoge_defconfig_powerpc'
make[2]: Entering directory `/home/kisskb/slave/build/mpe_mgcoge_defconfig_powerpc'
  CHK     include/config/kernel.release
  GEN     ./Makefile
  WRAP    arch/powerpc/include/generated/asm/clkdev.h
  WRAP    arch/powerpc/include/generated/asm/div64.h
  WRAP    arch/powerpc/include/generated/asm/irq_regs.h
  WRAP    arch/powerpc/include/generated/asm/irq_work.h
  WRAP    arch/powerpc/include/generated/asm/local64.h
  WRAP    arch/powerpc/include/generated/asm/mcs_spinlock.h
  WRAP    arch/powerpc/include/generated/asm/preempt.h
  WRAP    arch/powerpc/include/generated/asm/rwsem.h
  WRAP    arch/powerpc/include/generated/asm/trace_clock.h
  WRAP    arch/powerpc/include/generated/asm/vtime.h
  CHK     include/generated/uapi/linux/version.h
  UPD     include/generated/uapi/linux/version.h
  HOSTCC  scripts/basic/bin2c
  HOSTCC  scripts/kallsyms
  CC      scripts/mod/empty.o
  HOSTCC  scripts/mod/mk_elfconfig
  HOSTCC  scripts/dtc/dtc.o
  HOSTCC  scripts/dtc/flattree.o
  CC      scripts/mod/devicetable-offsets.s
  HOSTCC  scripts/dtc/fstree.o
  HOSTCC  scripts/dtc/data.o
  HOSTCC  scripts/dtc/livetree.o
  HOSTCC  scripts/dtc/treesource.o
  HOSTCC  scripts/dtc/srcpos.o
  HOSTCC  scripts/dtc/checks.o
  HOSTCC  scripts/dtc/util.o
  SHIPPED scripts/dtc/dtc-lexer.lex.c
  SHIPPED scripts/dtc/dtc-parser.tab.h
  SHIPPED scripts/dtc/dtc-parser.tab.c
  HOSTCC  scripts/dtc/dtc-lexer.lex.o
  HOSTCC  scripts/dtc/dtc-parser.tab.o
  GEN     scripts/mod/devicetable-offsets.h
  MKELF   scripts/mod/elfconfig.h
  HOSTCC  scripts/mod/modpost.o
  HOSTCC  scripts/mod/file2alias.o
  HOSTCC  scripts/mod/sumversion.o
  HOSTLD  scripts/dtc/dtc
  HOSTLD  scripts/mod/modpost
  UPD     include/config/kernel.release
  Using /home/kisskb/slave/src as source for kernel
  CHK     include/generated/utsrelease.h
  UPD     include/generated/utsrelease.h
  CHK     include/generated/timeconst.h
  CC      kernel/bounds.s
  UPD     include/generated/timeconst.h
  CHK     include/generated/bounds.h
  UPD     include/generated/bounds.h
  CC      arch/powerpc/kernel/asm-offsets.s
  CHK     include/generated/asm-offsets.h
  UPD     include/generated/asm-offsets.h
  CALL    /home/kisskb/slave/src/scripts/checksyscalls.sh
  CC      init/main.o
  CHK     include/generated/compile.h
  CC      init/do_mounts.o
  HOSTCC  usr/gen_init_cpio
  CC      init/do_mounts_rd.o
  CC      init/do_mounts_initrd.o
  CC      init/initramfs.o
  CC      init/init_task.o
  UPD     include/generated/compile.h
  AS      arch/powerpc/lib/string.o
  CC      arch/powerpc/mm/fault.o
  CC      arch/powerpc/lib/alloc.o
  CC      arch/powerpc/mm/mem.o
  AS      arch/powerpc/lib/crtsavres.o
  CC      init/version.o
  CC      arch/powerpc/lib/ppc_ksyms.o
  CC      arch/powerpc/mm/pgtable.o
  CC      arch/powerpc/mm/mmap.o
  CC      arch/powerpc/mm/init_32.o
  CC      arch/powerpc/lib/code-patching.o
  CC      arch/powerpc/mm/pgtable_32.o
  CC      arch/powerpc/lib/feature-fixups.o
  AS      arch/powerpc/lib/div64.o
  LD      arch/powerpc/math-emu/built-in.o
  AS      arch/powerpc/lib/copy_32.o
  CC      arch/powerpc/mm/ppc_mmu_32.o
  AS      arch/powerpc/lib/checksum_32.o
  AS      arch/powerpc/mm/hash_low_32.o
  CC      arch/powerpc/sysdev/mpic.o
  CC      arch/powerpc/mm/tlb_hash32.o
  CC      arch/powerpc/sysdev/grackle.o
  CC      arch/powerpc/lib/rheap.o
  CC      arch/powerpc/mm/mmu_context_hash32.o
  CC      arch/powerpc/sysdev/fsl_soc.o
  CC      arch/powerpc/platforms/82xx/pq2.o
  CC      arch/powerpc/platforms/82xx/km82xx.o
  CC      arch/powerpc/sysdev/fsl_mpic_err.o
  CC      arch/powerpc/sysdev/indirect_pci.o
  CC      arch/powerpc/mm/hugetlbpage.o
  CC      arch/powerpc/sysdev/i8259.o
  LD      arch/powerpc/crypto/built-in.o
  CC      arch/powerpc/kernel/cputable.o
  CC      arch/powerpc/platforms/chrp/setup.o
  CC      arch/powerpc/sysdev/cpm_common.o
  CC      arch/powerpc/platforms/chrp/time.o
  CC      arch/powerpc/sysdev/cpm2.o
  CC      arch/powerpc/kernel/ptrace.o
  CC      arch/powerpc/platforms/chrp/pegasos_eth.o
  CC      arch/powerpc/sysdev/cpm2_pic.o
  CC      arch/powerpc/platforms/chrp/pci.o
  CC      arch/powerpc/kernel/syscalls.o
  CC      arch/powerpc/kernel/irq.o
  CC      arch/powerpc/kernel/align.o
  LD      arch/powerpc/net/built-in.o
  CC      arch/powerpc/kernel/signal_32.o
  CC      arch/powerpc/kernel/pmc.o
  CC      arch/powerpc/kernel/vdso.o
  CC      arch/powerpc/kernel/process.o
  CPP     arch/powerpc/kernel/systbl_chk.i
  CC      arch/powerpc/kernel/idle.o
  CC      arch/powerpc/kernel/signal.o
  CC      arch/powerpc/kernel/sysfs.o
  CC      arch/powerpc/kernel/cacheinfo.o
  CC      arch/powerpc/kernel/time.o
  CC      arch/powerpc/kernel/prom.o
  CC      arch/powerpc/kernel/traps.o
  CC      arch/powerpc/kernel/setup-common.o
  CC      arch/powerpc/kernel/udbg.o
  AS      arch/powerpc/kernel/misc.o
  CC      arch/powerpc/kernel/io.o
  CC      arch/powerpc/kernel/dma.o
  AS      arch/powerpc/kernel/misc_32.o
  CC      ipc/msgutil.o
  CC      ipc/util.o
  CC      security/commoncap.o
  CC      arch/powerpc/kernel/of_platform.o
  CC      ipc/msg.o
  CC      security/min_addr.o
  CC      ipc/sem.o
  CC      ipc/shm.o
  CC      arch/powerpc/kernel/proc_powerpc.o
  CC      arch/powerpc/kernel/prom_parse.o
  CC      ipc/syscall.o
  CC      arch/powerpc/kernel/rtas.o
  CC      arch/powerpc/kernel/rtas-rtc.o
  CC      ipc/ipc_sysctl.o
  CC      ipc/mqueue.o
  CC      arch/powerpc/kernel/rtasd.o
  CC      ipc/mq_sysctl.o
  CC      arch/powerpc/kernel/rtas-proc.o
  AS      arch/powerpc/kernel/idle_6xx.o
  AS      arch/powerpc/kernel/l2cr_6xx.o
  AS      arch/powerpc/kernel/cpu_setup_6xx.o
  AS      arch/powerpc/kernel/entry_32.o
  CC      arch/powerpc/kernel/setup_32.o
  CC      arch/powerpc/kernel/legacy_serial.o
  CC      arch/powerpc/kernel/udbg_16550.o
  CC      arch/powerpc/kernel/pci_32.o
  CC      arch/powerpc/kernel/pci-common.o
  CC      arch/powerpc/kernel/pci_of_scan.o
  CC      arch/powerpc/kernel/iomap.o
  CC      mm/filemap.o
  LD      sound/built-in.o
  CC      arch/powerpc/kernel/prom_init.o
  AS      arch/powerpc/kernel/head_32.o
  LDS     arch/powerpc/kernel/vmlinux.lds
  AS      arch/powerpc/kernel/fpu.o
  CC      mm/mempool.o
  CC      mm/oom_kill.o
  CC      kernel/fork.o
  CC      mm/maccess.o
  LDS     arch/powerpc/kernel/vdso32/vdso32.lds
  CC      kernel/exec_domain.o
  VDSO32A arch/powerpc/kernel/vdso32/sigtramp.o
  CALL    /home/kisskb/slave/src/arch/powerpc/kernel/systbl_chk.sh
  CC      mm/page_alloc.o
  CC      kernel/panic.o
  CC      mm/page-writeback.o
  CC      kernel/cpu.o
  VDSO32A arch/powerpc/kernel/vdso32/gettimeofday.o
  VDSO32A arch/powerpc/kernel/vdso32/datapage.o
  CC      mm/readahead.o
  VDSO32A arch/powerpc/kernel/vdso32/cacheflush.o
  LD      firmware/built-in.o
  CC      kernel/softirq.o
  CC      kernel/exit.o
  VDSO32A arch/powerpc/kernel/vdso32/note.o
  CC      crypto/api.o
  CC      kernel/resource.o
  CC      crypto/cipher.o
  CC      mm/swap.o
  CC      kernel/sysctl.o
  CC      mm/truncate.o
  CC      crypto/compress.o
  CC      kernel/sysctl_binary.o
  CC      crypto/memneq.o
  AS      arch/powerpc/kernel/systbl.o
  CC      mm/vmscan.o
  CC      block/bio.o
  CC      mm/shmem.o
  CC      crypto/crypto_wq.o
  CC      mm/util.o
  CC      kernel/capability.o
  CC      block/elevator.o
  CC      crypto/algapi.o
  CC      mm/mmzone.o
  CC      mm/vmstat.o
  CC      crypto/scatterwalk.o
  CC      kernel/ptrace.o
  CC      block/blk-core.o
  CC      crypto/proc.o
  CC      mm/backing-dev.o
  CC      block/blk-tag.o
  CC      kernel/user.o
  CC      block/blk-sysfs.o
  CC      crypto/aead.o
  CC      block/blk-flush.o
  CC      kernel/signal.o
  CC      crypto/ablkcipher.o
  CC      mm/mmu_context.o
  CC      mm/mm_init.o
  CC      block/blk-settings.o
  CC      mm/percpu.o
  CC      kernel/sys.o
  CC      crypto/blkcipher.o
  CC      block/blk-ioc.o
  CC      crypto/chainiv.o
  CC      mm/compaction.o
  CC      mm/slab_common.o
  CC      block/blk-map.o
  CC      mm/vmacache.o
  CC      kernel/kmod.o
  CC      block/blk-exec.o
  CC      kernel/workqueue.o
  CC      crypto/eseqiv.o
  CC      block/blk-merge.o
  CC      mm/interval_tree.o
  CC      block/blk-softirq.o
  CC      crypto/echainiv.o
  CC      mm/list_lru.o
  CC      mm/workingset.o
  CC      kernel/pid.o
  CC      block/blk-timeout.o
  CC      crypto/ahash.o
  CC      mm/debug.o
  CC      kernel/task_work.o
  VDSO32L arch/powerpc/kernel/vdso32/vdso32.so.dbg
  CC      block/blk-iopoll.o
  CC      crypto/shash.o
  CC      kernel/extable.o
  CC      mm/gup.o
  CC      block/blk-lib.o
  CC      mm/highmem.o
  CC      crypto/pcompress.o
  CC      kernel/params.o
  CC      block/blk-mq.o
  CC      crypto/akcipher.o
  CC      mm/memory.o
  CC      block/blk-mq-tag.o
  CC      mm/mincore.o
  CC      kernel/kthread.o
  OBJCOPY arch/powerpc/kernel/vdso32/vdso32.so
  CC      block/blk-mq-cpu.o
  CC      mm/mlock.o
  CC      crypto/algboss.o
  CC      block/blk-mq-sysfs.o
  CC      kernel/sys_ni.o
  CC      crypto/testmgr.o
  CC      mm/mmap.o
  CC      mm/mprotect.o
  CC      kernel/nsproxy.o
  AS      arch/powerpc/kernel/vdso32/vdso32_wrapper.o
  CC      block/ioctl.o
  CC      crypto/sha256_generic.o
  CC      crypto/hmac.o
  CC      crypto/crypto_null.o
  CC      mm/mremap.o
  CC      kernel/notifier.o
  CC      block/blk-mq-cpumap.o
  CC      crypto/ecb.o
  CC      crypto/pcbc.o
  CC      kernel/ksysfs.o
  CC      mm/msync.o
  CC      block/scsi_ioctl.o
  CC      block/genhd.o
  CC      mm/rmap.o
  CC      block/partition-generic.o
  CC      kernel/cred.o
  CC      crypto/aes_generic.o
  CC      block/ioprio.o
  CC      kernel/reboot.o
  CC      crypto/rng.o
  CC      mm/vmalloc.o
  CC      mm/pagewalk.o
  CC      block/bounce.o
  CC      kernel/async.o
  CC      block/bsg.o
  CC      crypto/drbg.o
  CC      block/noop-iosched.o
  CC      mm/pgtable-generic.o
  CC      crypto/jitterentropy.o
  CC      mm/process_vm_access.o
  CC      kernel/range.o
  CC      crypto/jitterentropy-kcapi.o
  CC      block/deadline-iosched.o
  CC      mm/init-mm.o
  CC      mm/nobootmem.o
  CC      kernel/groups.o
  CC      block/partitions/check.o
  CC      kernel/smpboot.o
  CC      block/partitions/msdos.o
  CC      mm/fadvise.o
  LD      arch/powerpc/kernel/vdso32/built-in.o
  CC      block/partitions/efi.o
  CC      mm/memblock.o
  CC      mm/madvise.o
  LD      kernel/livepatch/built-in.o
  CC      mm/dmapool.o
  CC      kernel/bpf/core.o
  CC      mm/slab.o
  CC      mm/migrate.o
  CC      kernel/power/qos.o
  CC      kernel/futex.o
  CC      kernel/printk/printk.o
  CC      net/socket.o
  CC      kernel/dma.o
  CC      kernel/power/poweroff.o
  CC      kernel/up.o
  CC      kernel/rcu/update.o
  LD      net/802/built-in.o
  CC      kernel/rcu/srcu.o
  CC      kernel/locking/mutex.o
  CC      kernel/kallsyms.o
  GZIP    kernel/config_data.gz
  CC      kernel/locking/semaphore.o
  CC      kernel/utsname_sysctl.o
  CC      kernel/rcu/tiny.o
  GEN     usr/initramfs_data.cpio.lz4
  CC      kernel/elfcore.o
  CC      net/ethernet/eth.o
  CC      kernel/locking/rwsem.o
  CC      kernel/locking/rtmutex.o
  CC      net/sched/sch_generic.o
  CC      kernel/irq_work.o
  CC      net/netfilter/core.o
  CC      kernel/irq/irqdesc.o
  CC      kernel/locking/rwsem-xadd.o
  CC      net/packet/af_packet.o
  CC      net/sched/sch_mq.o
  CC      net/netlink/af_netlink.o
  CC      fs/open.o
  CC      kernel/sched/core.o
  CC      fs/read_write.o
  CC      fs/file_table.o
  CC      fs/super.o
  CC      net/unix/af_unix.o
  CC      kernel/time/time.o
  CC      kernel/sched/loadavg.o
  LD      net/ipv6/netfilter/built-in.o
  CC      kernel/sched/clock.o
  CC      kernel/time/timer.o
  LD      net/wireless/built-in.o
  CC      net/netlink/genetlink.o
  CC      net/sysctl_net.o
  CC      net/netfilter/nf_log.o
  CC      kernel/sched/cputime.o
  CC      net/unix/garbage.o
  CC      fs/char_dev.o
  CC      net/ipv6/addrconf_core.o
  CC      kernel/time/hrtimer.o
  CC      net/ipv6/exthdrs_core.o
  CC      fs/stat.o
  CC      net/unix/sysctl_net_unix.o
  AS      usr/initramfs_data.o
  CC      fs/exec.o
  CC      net/netfilter/nf_queue.o
  CC      kernel/irq/handle.o
  CC      net/sunrpc/clnt.o
  CC      net/xfrm/xfrm_policy.o
  LD      arch/powerpc/platforms/82xx/built-in.o
  LD      drivers/amba/built-in.o
  CC      kernel/sched/idle_task.o
  CC      net/tipc/addr.o
  CC      kernel/time/itimer.o
  CC      lib/lockref.o
  CHK     kernel/config_data.h
  CC      net/tipc/bcast.o
  CC      fs/pipe.o
  CC      net/core/sock.o
  CC      kernel/time/posix-timers.o
  CC      kernel/time/posix-cpu-timers.o
  UPD     kernel/config_data.h
  LD      drivers/auxdisplay/built-in.o
  LD      arch/powerpc/mm/built-in.o
  LD      usr/built-in.o
  CC      net/core/request_sock.o
  CC      net/tipc/bearer.o
  CC      kernel/sched/fair.o
  CC      net/tipc/core.o
  CC      lib/bcd.o
  LD      drivers/bus/built-in.o
  CC      kernel/configs.o
  CC      drivers/block/brd.o
  CC      lib/div64.o
  CC      net/core/skbuff.o
  CC      kernel/sched/rt.o
  CC      net/netfilter/nf_sockopt.o
  LD      drivers/cdrom/built-in.o
  CC      fs/namei.o
  CC      net/tipc/link.o
  CC      kernel/time/timekeeping.o
  LD      drivers/clk/built-in.o
  CC      fs/fcntl.o
  CC      fs/ioctl.o
  LD      drivers/clocksource/built-in.o
  LD      drivers/firewire/built-in.o
  CC      net/tipc/discover.o
  LD      arch/powerpc/lib/built-in.o
  CC      net/tipc/msg.o
  LD      drivers/crypto/built-in.o
  CC      drivers/char/mem.o
  CC      net/core/datagram.o
  CC      drivers/char/random.o
  CC      lib/sort.o
  CC      net/ipv4/route.o
  CC      drivers/char/misc.o
  CC      kernel/time/ntp.o
  CC      kernel/time/clocksource.o
  LD      drivers/idle/built-in.o
  CC      drivers/base/component.o
  CC      net/ipv4/inetpeer.o
  CC      drivers/gpio/devres.o
  CC      net/ipv4/protocol.o
  CC      drivers/gpio/gpiolib.o
  CC      kernel/sched/deadline.o
  CC      lib/parser.o
  LD      drivers/char/agp/built-in.o
  LD      drivers/hsi/clients/built-in.o
  CC      kernel/sched/stop_task.o
  CC      drivers/gpio/gpiolib-legacy.o
  LD      drivers/hsi/controllers/built-in.o
  LD      drivers/firmware/broadcom/built-in.o
  CC      net/ipv6/ip6_checksum.o
  CC      kernel/sched/wait.o
  CC      drivers/i2c/i2c-boardinfo.o
  CC      drivers/gpio/gpiolib-of.o
  LD      drivers/iommu/built-in.o
  CC      drivers/block/loop.o
  CC      drivers/char/hw_random/core.o
  CC      kernel/time/jiffies.o
  CC      kernel/sched/completion.o
  CC      net/tipc/name_distr.o
  LD      drivers/hsi/built-in.o
  LD      drivers/gpu/drm/bridge/built-in.o
  CC      kernel/time/timer_list.o
  CC      net/tipc/subscr.o
  CC      kernel/sched/idle.o
  LD      drivers/firmware/built-in.o
  CC      kernel/time/timeconv.o
  LD      drivers/lguest/built-in.o
  LD      drivers/leds/built-in.o
  CC      lib/halfmd4.o
  LD      drivers/macintosh/built-in.o
  CC      drivers/irqchip/irqchip.o
  CC      kernel/time/timecounter.o
  CC      lib/debug_locks.o
  LD      drivers/gpu/drm/i2c/built-in.o
  CC      lib/random32.o
  LD      drivers/gpu/drm/panel/built-in.o
  LD      drivers/gpu/drm/tilcdc/built-in.o
  CC      lib/bust_spinlocks.o
  CC      net/core/stream.o
  CC      net/ipv6/ip6_icmp.o
  CC      lib/kasprintf.o
  LD      drivers/mfd/built-in.o
  CC      net/sunrpc/xprt.o
  CC      fs/readdir.o
  LD      drivers/mmc/built-in.o
  CC      lib/bitmap.o
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  CC      lib/fdt_sw.o
  CC      net/ipv4/tcp_cong.o
  CC      fs/sysfs/dir.o
  CC      fs/timerfd.o
  CC      fs/jffs2/dir.o
  CC      net/ipv4/tcp_metrics.o
  CC      fs/eventfd.o
  CC      fs/autofs4/expire.o
  CC      lib/fdt_wip.o
  CC      fs/jffs2/file.o
  CC      fs/autofs4/dev-ioctl.o
  CC      net/ipv4/tcp_fastopen.o
  CC      fs/sysfs/symlink.o
  CC      fs/aio.o
  CC      fs/kernfs/symlink.o
  CC      fs/nls/nls_cp437.o
  LD      drivers/gpio/built-in.o
  CC      fs/notify/notification.o
  CC      fs/lockd/clntxdr.o
  CC      fs/sysfs/mount.o
  CC      fs/nls/nls_ascii.o
  CC      net/ipv4/tcp_offload.o
  CC      fs/nfs/client.o
  CC      fs/lockd/host.o
  CC      lib/flex_proportions.o
  CC      fs/nfs/dir.o
  CC      fs/lockd/svc.o
  CC      fs/sysfs/group.o
  CC      lib/idr.o
  CC      fs/nfs/file.o
  CC      lib/int_sqrt.o
  CC      fs/squashfs/block.o
  CC      lib/ioremap.o
/home/kisskb/slave/src/net/ipv4/inet_hashtables.c: In function 'inet_ehash_locks_alloc':
/home/kisskb/slave/src/net/ipv4/inet_hashtables.c:631:13: warning: division by zero [-Wdiv-by-zero]
  CC      fs/squashfs/cache.o
  CC      fs/proc/task_mmu.o
  CC      fs/locks.o
  CC      lib/irq_regs.o
  CC      fs/proc/inode.o
  CC      lib/is_single_threaded.o
  CC      fs/binfmt_misc.o
  CC      fs/proc/root.o
  CC      net/sunrpc/stats.o
  CC      fs/binfmt_script.o
  LD      drivers/usb/gadget/function/usb_f_obex.o
  CC      net/ipv4/datagram.o
  CC      fs/binfmt_elf.o
  CC      net/sunrpc/sysctl.o
  LD      drivers/usb/gadget/function/usb_f_acm.o
  CC      net/ipv4/raw.o
  CC      fs/debugfs/file.o
  CC      fs/ext2/file.o
  CC      lib/klist.o
  CC      fs/ext2/ialloc.o
  CC      fs/coredump.o
  CC      fs/notify/group.o
  CC      fs/nfs/getroot.o
  CC      fs/ext2/inode.o
  CC      net/ipv4/udp.o
  CC      fs/nls/nls_iso8859-1.o
  CC      net/ipv4/udplite.o
  LD      kernel/printk/built-in.o
  CC      fs/jffs2/ioctl.o
  CC      fs/jffs2/nodelist.o
  CC      net/ipv4/udp_offload.o
  CC      lib/kobject.o
  CC      fs/lockd/svclock.o
  CC      fs/jffs2/malloc.o
  CC      lib/kobject_uevent.o
  CC      lib/md5.o
  CC      fs/drop_caches.o
  CC      fs/notify/inode_mark.o
  CC      lib/plist.o
  LD      drivers/usb/host/built-in.o
  CC      lib/proportions.o
  CC      fs/nls/nls_utf8.o
  CC      fs/squashfs/dir.o
  CC      fs/notify/mark.o
  CC      fs/jffs2/read.o
  CC      fs/notify/vfsmount_mark.o
  CC      lib/radix-tree.o
  CC      fs/squashfs/export.o
  CC      net/ipv4/arp.o
  LD      drivers/usb/phy/built-in.o
  CC      lib/ratelimit.o
  CC      fs/squashfs/file.o
  CC      fs/jffs2/nodemgmt.o
  CC      lib/rbtree.o
  CC      fs/notify/fdinfo.o
  CC      fs/squashfs/fragment.o
  LD      block/built-in.o
  LD      drivers/mtd/maps/built-in.o
  CC      fs/notify/dnotify/dnotify.o
  CC      fs/nfs/inode.o
  LD      drivers/net/phy/libphy.o
  LD      fs/notify/fanotify/built-in.o
  CC      lib/seq_buf.o
  CC      fs/nfs/super.o
  CC      fs/nfs/direct.o
  LD      drivers/net/phy/built-in.o
  LD      net/ipv6/built-in.o
  CC      fs/nfs/pagelist.o
  CC      fs/ext2/ioctl.o
  CC      fs/notify/inotify/inotify_fsnotify.o
  CC      lib/sha1.o
  CC      fs/ext2/namei.o
  CC      fs/ext2/super.o
  CC      fs/ext2/symlink.o
  CC      lib/show_mem.o
  CC      fs/proc/base.o
  CC      net/ipv4/icmp.o
  CC      lib/string.o
  CC      fs/squashfs/id.o
  CC      fs/notify/inotify/inotify_user.o
  CC      lib/timerqueue.o
  LD      lib/xz/xz_dec.o
  CC      fs/proc/generic.o
  CC      fs/ramfs/file-mmu.o
  CC      net/ipv4/devinet.o
  CC      lib/vsprintf.o
  CC      fs/jffs2/readinode.o
  LD      lib/xz/built-in.o
  GEN     lib/crc32table.h
  CC      fs/proc/array.o
  LD      kernel/time/built-in.o
  CC      fs/proc/fd.o
  CC      fs/jffs2/write.o
  CC      fs/squashfs/inode.o
  CC      fs/proc/proc_tty.o
  CC      fs/lockd/svcshare.o
  CC      fs/jffs2/scan.o
  CC      fs/squashfs/namei.o
  CC      lib/crc32.o
  CC      net/ipv4/af_inet.o
  LD      drivers/mtd/mtd.o
  CC      fs/squashfs/super.o
  CC      net/ipv4/igmp.o
  CC      fs/lockd/svcproc.o
  LD      drivers/usb/gadget/function/built-in.o
  CC      fs/proc/cmdline.o
  CC      fs/squashfs/symlink.o
  LD      lib/zlib_deflate/zlib_deflate.o
  CC      fs/lockd/svcsubs.o
  CC      fs/proc/consoles.o
  CC      net/ipv4/fib_frontend.o
  CC      fs/jffs2/gc.o
  CC      fs/squashfs/decompressor.o
  CC      fs/nfs/read.o
  LD      lib/zlib_deflate/built-in.o
  LD      drivers/block/built-in.o
  LD      fs/devpts/devpts.o
  CC      fs/squashfs/file_cache.o
  CC      fs/squashfs/decompressor_single.o
  CC      net/ipv4/fib_semantics.o
  CC      fs/lockd/mon.o
  CC      fs/jffs2/symlink.o
  CC      fs/nfs/symlink.o
  CC      fs/squashfs/zlib_wrapper.o
  CC      fs/lockd/xdr.o
  LD      fs/devpts/built-in.o
  LD      fs/nfs_common/built-in.o
  CC      fs/jffs2/build.o
  CC      fs/nfs/unlink.o
  CC      fs/jffs2/erase.o
  CC      fs/proc/cpuinfo.o
  CC      net/ipv4/fib_trie.o
  CC      fs/proc/devices.o
  CC      fs/nfs/write.o
  CC      fs/lockd/clnt4xdr.o
  LD      drivers/of/built-in.o
  CC      net/ipv4/inet_fragment.o
  CC      fs/jffs2/background.o
  LD      drivers/i2c/built-in.o
  CC      fs/lockd/xdr4.o
  CC      fs/proc/interrupts.o
  CC      fs/jffs2/fs.o
  CC      fs/proc/loadavg.o
  CC      fs/jffs2/writev.o
  CC      net/ipv4/ping.o
  CC      fs/proc/meminfo.o
  CC      fs/nfs/namespace.o
  CC      fs/jffs2/super.o
  CC      net/ipv4/ip_tunnel_core.o
  CC      fs/jffs2/debug.o
  CC      fs/proc/stat.o
  CC      fs/nfs/mount_clnt.o
  LD      drivers/spi/built-in.o
  LD      kernel/sched/built-in.o
  CC      fs/jffs2/wbuf.o
  LD      fs/nls/built-in.o
  CC      fs/lockd/svc4proc.o
  CC      net/ipv4/gre_offload.o
  CC      fs/nfs/nfstrace.o
  CC      fs/proc/uptime.o
  CC      fs/jffs2/compr_rtime.o
  CC      fs/lockd/procfs.o
  CC      net/ipv4/ip_tunnel.o
  CC      fs/jffs2/compr_zlib.o
  CC      fs/nfs/nfsroot.o
  CC      net/ipv4/sysctl_net_ipv4.o
  CC      fs/proc/version.o
  CC      fs/nfs/sysctl.o
  CC      net/ipv4/proc.o
  CC      net/ipv4/udp_tunnel.o
  LD      lib/zlib_inflate/zlib_inflate.o
  CC      fs/proc/softirqs.o
  CC      fs/nfs/nfs2super.o
  CC      fs/nfs/proc.o
  CC      net/ipv4/syncookies.o
  CC      fs/proc/namespaces.o
  CC      net/ipv4/xfrm4_mode_beet.o
  CC      fs/nfs/nfs2xdr.o
  LD      lib/zlib_inflate/built-in.o
  CC      fs/proc/self.o
  CC      fs/nfs/nfs3super.o
  CC      fs/proc/thread_self.o
  CC      net/ipv4/xfrm4_mode_transport.o
  LD      fs/cramfs/cramfs.o
  CC      fs/nfs/nfs3client.o
  CC      fs/proc/proc_sysctl.o
  CC      net/ipv4/xfrm4_mode_tunnel.o
  CC      fs/nfs/nfs3proc.o
  CC      net/ipv4/ipconfig.o
  CC      fs/proc/proc_net.o
  LD      fs/sysfs/built-in.o
  LD      drivers/base/built-in.o
  CC      fs/nfs/nfs3xdr.o
  LD      fs/cramfs/built-in.o
  CC      net/ipv4/netfilter.o
  CC      net/ipv4/inet_diag.o
  CC      net/ipv4/tcp_diag.o
  CC      fs/proc/kcore.o
  CC      net/ipv4/tcp_cubic.o
  LD      net/ipv4/netfilter/built-in.o
  CC      net/ipv4/xfrm4_policy.o
  CC      fs/proc/kmsg.o
  CC      net/ipv4/xfrm4_state.o
  CC      fs/proc/page.o
  CC      net/ipv4/xfrm4_input.o
  CC      net/ipv4/xfrm4_output.o
  CC      net/ipv4/xfrm4_protocol.o
  LD      net/unix/unix.o
  LD      kernel/built-in.o
  LD      net/unix/built-in.o
  LD      fs/notify/dnotify/built-in.o
  LD      fs/ramfs/ramfs.o
  LD      fs/ramfs/built-in.o
  LD      fs/autofs4/autofs4.o
  LD      fs/autofs4/built-in.o
  LD      net/netlink/built-in.o
  LD      drivers/usb/gadget/libcomposite.o
  LD      fs/debugfs/debugfs.o
  LD      fs/debugfs/built-in.o
  LD      fs/kernfs/built-in.o
  LD      fs/configfs/configfs.o
  LD      fs/configfs/built-in.o
  LD      mm/built-in.o
  LD      fs/notify/inotify/built-in.o
  LD      drivers/net/ethernet/freescale/fs_enet/fs_enet.o
  LD      fs/notify/built-in.o
  LD      drivers/net/ethernet/freescale/fs_enet/built-in.o
  LD      fs/squashfs/squashfs.o
  LD      drivers/net/ethernet/freescale/built-in.o
  LD      fs/squashfs/built-in.o
  LD      drivers/net/ethernet/built-in.o
  LD      drivers/tty/serial/cpm_uart/cpm_uart.o
  LD      drivers/usb/gadget/udc/fsl_usb2_udc.o
  LD      drivers/tty/serial/cpm_uart/built-in.o
  LD      drivers/usb/gadget/udc/built-in.o
  LD      drivers/net/built-in.o
  LD      drivers/usb/gadget/built-in.o
  LD      lib/built-in.o
  LD      drivers/usb/built-in.o
  LD      net/packet/built-in.o
  LD      fs/lockd/lockd.o
  LD      net/sunrpc/sunrpc.o
  LD      net/xfrm/built-in.o
  LD      fs/lockd/built-in.o
  LD      net/sunrpc/built-in.o
  LD      fs/ext2/ext2.o
  LD      fs/ext2/built-in.o
  LD      fs/jffs2/jffs2.o
  LD      drivers/tty/serial/built-in.o
  LD      fs/jffs2/built-in.o
  LD      drivers/tty/built-in.o
  LD      net/tipc/tipc.o
  LD      fs/nfs/nfsv2.o
  LD      net/tipc/built-in.o
  LD      drivers/pci/built-in.o
  LD      drivers/mtd/chips/built-in.o
  LD      drivers/mtd/built-in.o
  LD      fs/proc/proc.o
  LD      drivers/built-in.o
  LD      fs/proc/built-in.o
  LD      fs/nfs/nfsv3.o
  AR      lib/lib.a
  LD      fs/nfs/nfs.o
  LD      fs/nfs/built-in.o
  LD      fs/built-in.o
  LD      net/core/built-in.o
  LD      net/ipv4/built-in.o
  LD      net/built-in.o
  LINK    vmlinux
  LD      vmlinux.o
  MODPOST vmlinux.o
  GEN     .version
  CHK     include/generated/compile.h
  UPD     include/generated/compile.h
  CC      init/version.o
  LD      init/built-in.o
  KSYM    .tmp_kallsyms1.o
  KSYM    .tmp_kallsyms2.o
  LD      vmlinux
  SYSMAP  System.map
  BOOTCC  arch/powerpc/boot/cpm-serial.o
  BOOTAS  arch/powerpc/boot/crt0.o
  BOOTAS  arch/powerpc/boot/crtsavres.o
  BOOTCC  arch/powerpc/boot/cuboot.o
  BOOTCC  arch/powerpc/boot/devtree.o
  COPY    arch/powerpc/boot/fdt.h
  COPY    arch/powerpc/boot/libfdt.h
  BOOTCC  arch/powerpc/boot/elf_util.o
  COPY    arch/powerpc/boot/libfdt_internal.h
  BOOTAS  arch/powerpc/boot/div64.o
  COPY    arch/powerpc/boot/zlib.h
  COPY    arch/powerpc/boot/zconf.h
  BOOTCC  arch/powerpc/boot/fsl-soc.o
  COPY    arch/powerpc/boot/zutil.h
  COPY    arch/powerpc/boot/inffast.h
  COPY    arch/powerpc/boot/inffixed.h
  COPY    arch/powerpc/boot/inftrees.h
  COPY    arch/powerpc/boot/infutil.h
  COPY    arch/powerpc/boot/inflate.h
  BOOTCC  arch/powerpc/boot/libfdt-wrapper.o
  BOOTCC  arch/powerpc/boot/mpc52xx-psc.o
  BOOTCC  arch/powerpc/boot/mpsc.o
  BOOTCC  arch/powerpc/boot/ofconsole.o
  BOOTCC  arch/powerpc/boot/ns16550.o
  BOOTCC  arch/powerpc/boot/oflib.o
  BOOTCC  arch/powerpc/boot/planetcore.o
  BOOTCC  arch/powerpc/boot/serial.o
  BOOTCC  arch/powerpc/boot/pq2.o
  BOOTCC  arch/powerpc/boot/simple_alloc.o
  BOOTCC  arch/powerpc/boot/stdio.o
  BOOTCC  arch/powerpc/boot/stdlib.o
  BOOTAS  arch/powerpc/boot/string.o
  BOOTCC  arch/powerpc/boot/uartlite.o
  BOOTAS  arch/powerpc/boot/util.o
  BOOTCC  arch/powerpc/boot/cuboot-824x.o
  BOOTCC  arch/powerpc/boot/cuboot-pq2.o
  BOOTCC  arch/powerpc/boot/ep8248e.o
  BOOTCC  arch/powerpc/boot/epapr.o
/opt/cross/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc -m32 -Wp,-MD,arch/powerpc/boot/.zImage.lds.d  -nostdinc -isystem /opt/cross/gcc-4.6.3-nolibc/powerpc-linux/bin/../lib/gcc/powerpc-linux/4.6.3/include -I/home/kisskb/slave/src/arch/powerpc/include -Iarch/powerpc/include/generated/uapi -Iarch/powerpc/include/generated  -I/home/kisskb/slave/src/include -Iinclude -I/home/kisskb/slave/src/arch/powerpc/include/uapi -Iarch/powerpc/include/generated/uapi -I/home/kisskb/slave/src/include/uapi -Iinclude/generated/uapi -include /home/kisskb/slave/src/include/linux/kconfig.h -D__KERNEL__  -I/home/kisskb/slave/src/arch/powerpc -Iarch/powerpc -E -Wp,-MD,arch/powerpc/boot/.zImage.lds.d -P -Upowerpc \
		-D__ASSEMBLY__ -DLINKER_SCRIPT -o arch/powerpc/boot/zImage.lds /home/kisskb/slave/src/arch/powerpc/boot/zImage.lds.S
  BOOTAS  arch/powerpc/boot/fixed-head.o
  BOOTCC  arch/powerpc/boot/of.o
  HOSTCC  arch/powerpc/boot/addnote
  HOSTCC  arch/powerpc/boot/hack-coff
  HOSTCC  arch/powerpc/boot/mktree
  COPY    arch/powerpc/boot/fdt.c
  COPY    arch/powerpc/boot/fdt_ro.c
  COPY    arch/powerpc/boot/fdt_rw.c
  COPY    arch/powerpc/boot/fdt_strerror.c
  COPY    arch/powerpc/boot/fdt_wip.c
  COPY    arch/powerpc/boot/fdt_sw.c
  COPY    arch/powerpc/boot/inffast.c
  COPY    arch/powerpc/boot/inflate.c
  BOOTCC  arch/powerpc/boot/gunzip_util.o
  COPY    arch/powerpc/boot/inftrees.c
  BOOTCC  arch/powerpc/boot/empty.o
  BOOTCC  arch/powerpc/boot/main.o
  BOOTCC  arch/powerpc/boot/fdt.o
  BOOTCC  arch/powerpc/boot/fdt_ro.o
  BOOTCC  arch/powerpc/boot/fdt_rw.o
  BOOTCC  arch/powerpc/boot/fdt_strerror.o
  BOOTCC  arch/powerpc/boot/fdt_sw.o
  BOOTCC  arch/powerpc/boot/fdt_wip.o
  BOOTCC  arch/powerpc/boot/inffast.o
  BOOTCC  arch/powerpc/boot/inflate.o
  BOOTCC  arch/powerpc/boot/inftrees.o
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c: In function 'main':
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:183:3: warning: right shift count >= width of type [enabled by default]
   PUT_64(ph + PH_OFFSET, ns);
   ^
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:183:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:183:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:183:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:183:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:183:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:183:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:183:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:188:3: warning: right shift count >= width of type [enabled by default]
   PUT_64(ph + PH_FILESZ, nnote);
   ^
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:188:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:188:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:188:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:188:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:188:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:188:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:188:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:206:3: warning: right shift count >= width of type [enabled by default]
   PUT_64(ph + PH_OFFSET, ns);
   ^
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:206:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:206:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:206:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:206:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:206:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:206:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:206:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:211:3: warning: right shift count >= width of type [enabled by default]
   PUT_64(ph + PH_FILESZ, nnote2);
   ^
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:211:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:211:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:211:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:211:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:211:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:211:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/powerpc/boot/addnote.c:211:3: warning: right shift count >= width of type [enabled by default]
  BOOTAR  arch/powerpc/boot/wrapper.a
  WRAP    arch/powerpc/boot/zImage.chrp
make[2]: Leaving directory `/home/kisskb/slave/build/mpe_mgcoge_defconfig_powerpc'
make[1]: Leaving directory `/home/kisskb/slave/src'
Completed OK
# rm -rf /home/kisskb/slave/build/mpe_mgcoge_defconfig_powerpc
# Build took: 0:00:52.427295