# git rev-parse -q --verify 77e5bdf9f7b2d20939c8d807f3e68778d6e1557a^{commit}
77e5bdf9f7b2d20939c8d807f3e68778d6e1557a
already have revision, skipping fetch
# git checkout -q -f -B kisskb 77e5bdf9f7b2d20939c8d807f3e68778d6e1557a
# git clean -qxdf
# git log -1
commit 77e5bdf9f7b2d20939c8d807f3e68778d6e1557a
Merge: b8f26e8 8630c32
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Wed Sep 14 09:35:05 2016 -0700

    Merge branch 'uaccess-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
    
    Pull uaccess fixes from Al Viro:
     "Fixes for broken uaccess primitives - mostly lack of proper zeroing
      in copy_from_user()/get_user()/__get_user(), but for several
      architectures there's more (broken clear_user() on frv and
      strncpy_from_user() on hexagon)"
    
    * 'uaccess-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (28 commits)
      avr32: fix copy_from_user()
      microblaze: fix __get_user()
      microblaze: fix copy_from_user()
      m32r: fix __get_user()
      blackfin: fix copy_from_user()
      sparc32: fix copy_from_user()
      sh: fix copy_from_user()
      sh64: failing __get_user() should zero
      score: fix copy_from_user() and friends
      score: fix __get_user/get_user
      s390: get_user() should zero on failure
      ppc32: fix copy_from_user()
      parisc: fix copy_from_user()
      openrisc: fix copy_from_user()
      nios2: fix __get_user()
      nios2: copy_from_user() should zero the tail of destination
      mn10300: copy_from_user() should zero on access_ok() failure...
      mn10300: failing __get_user() and get_user() should zero
      mips: copy_from_user() must zero the destination on access_ok() failure
      ARC: uaccess: get_user to zero out dest in cause of fault
      ...
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-gcc --version
# < git log --format=%s --max-count=1 77e5bdf9f7b2d20939c8d807f3e68778d6e1557a
# < make -j 10 ARCH=sh O=/home/kisskb/slave/build/linus_sh-randconfig_sh4 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-  randconfig
KCONFIG_SEED=0xFEF8D3BB
# Added to kconfig CONFIG_STANDALONE=y
# yes \n | make -j 10 ARCH=sh O=/home/kisskb/slave/build/linus_sh-randconfig_sh4 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-  oldconfig
yes: standard output: Broken pipe
yes: write error
# make -j 10 ARCH=sh O=/home/kisskb/slave/build/linus_sh-randconfig_sh4 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-  
make[1]: Entering directory '/home/kisskb/slave/build/linus_sh-randconfig_sh4'
  GEN     ./Makefile
scripts/kconfig/conf  --silentoldconfig Kconfig
  CHK     include/config/kernel.release
  UPD     include/config/kernel.release
  GEN     ./Makefile
  WRAP    arch/sh/include/generated/asm/bitsperlong.h
  WRAP    arch/sh/include/generated/asm/clkdev.h
  WRAP    arch/sh/include/generated/asm/cputime.h
  WRAP    arch/sh/include/generated/asm/current.h
  WRAP    arch/sh/include/generated/asm/delay.h
  WRAP    arch/sh/include/generated/asm/div64.h
  WRAP    arch/sh/include/generated/asm/emergency-restart.h
  WRAP    arch/sh/include/generated/asm/errno.h
  WRAP    arch/sh/include/generated/asm/exec.h
  WRAP    arch/sh/include/generated/asm/fcntl.h
  WRAP    arch/sh/include/generated/asm/ioctl.h
  WRAP    arch/sh/include/generated/asm/ipcbuf.h
  WRAP    arch/sh/include/generated/asm/irq_regs.h
  WRAP    arch/sh/include/generated/asm/irq_work.h
  WRAP    arch/sh/include/generated/asm/kvm_para.h
  WRAP    arch/sh/include/generated/asm/local.h
  WRAP    arch/sh/include/generated/asm/local64.h
  WRAP    arch/sh/include/generated/asm/mcs_spinlock.h
  WRAP    arch/sh/include/generated/asm/mm-arch-hooks.h
  WRAP    arch/sh/include/generated/asm/mman.h
  WRAP    arch/sh/include/generated/asm/msgbuf.h
  WRAP    arch/sh/include/generated/asm/param.h
  WRAP    arch/sh/include/generated/asm/parport.h
  WRAP    arch/sh/include/generated/asm/percpu.h
  WRAP    arch/sh/include/generated/asm/poll.h
  WRAP    arch/sh/include/generated/asm/preempt.h
  WRAP    arch/sh/include/generated/asm/resource.h
  WRAP    arch/sh/include/generated/asm/rwsem.h
  WRAP    arch/sh/include/generated/asm/sembuf.h
  WRAP    arch/sh/include/generated/asm/serial.h
  WRAP    arch/sh/include/generated/asm/shmbuf.h
  WRAP    arch/sh/include/generated/asm/siginfo.h
  WRAP    arch/sh/include/generated/asm/sizes.h
  WRAP    arch/sh/include/generated/asm/socket.h
  WRAP    arch/sh/include/generated/asm/statfs.h
  WRAP    arch/sh/include/generated/asm/termbits.h
  WRAP    arch/sh/include/generated/asm/termios.h
  WRAP    arch/sh/include/generated/asm/trace_clock.h
  WRAP    arch/sh/include/generated/asm/ucontext.h
  WRAP    arch/sh/include/generated/asm/xor.h
  CHK     include/generated/uapi/linux/version.h
  UPD     include/generated/uapi/linux/version.h
  CHK     include/generated/utsrelease.h
  UPD     include/generated/utsrelease.h
  Using /home/kisskb/slave/src as source for kernel
  HOSTCC  scripts/kallsyms
  HOSTCC  scripts/conmakehash
  HOSTCC  scripts/asn1_compiler
  HOSTCC  scripts/sign-file
  HOSTCC  scripts/extract-cert
  HOSTCC  scripts/genksyms/genksyms.o
  SHIPPED scripts/genksyms/parse.tab.c
  SHIPPED scripts/genksyms/lex.lex.c
  CC      scripts/mod/empty.o
  SHIPPED scripts/genksyms/keywords.hash.c
  SHIPPED scripts/genksyms/parse.tab.h
  HOSTCC  scripts/mod/mk_elfconfig
  HOSTCC  scripts/genksyms/parse.tab.o
  HOSTCC  scripts/genksyms/lex.lex.o
  CC      scripts/mod/devicetable-offsets.s
  GEN     scripts/mod/devicetable-offsets.h
  MKELF   scripts/mod/elfconfig.h
  HOSTCC  scripts/mod/modpost.o
  Generating include/generated/machtypes.h
  CC      kernel/bounds.s
  CHK     include/generated/timeconst.h
  UPD     include/generated/timeconst.h
  HOSTCC  scripts/mod/file2alias.o
  HOSTCC  scripts/mod/sumversion.o
  CHK     include/generated/bounds.h
  UPD     include/generated/bounds.h
  CC      arch/sh/kernel/asm-offsets.s
  CHK     include/generated/asm-offsets.h
  UPD     include/generated/asm-offsets.h
  CALL    /home/kisskb/slave/src/scripts/checksyscalls.sh
  HOSTLD  scripts/genksyms/genksyms
  HOSTLD  scripts/mod/modpost
  CC      init/main.o
  CHK     include/generated/compile.h
  CC      init/do_mounts.o
  CC      init/do_mounts_initrd.o
  CC      init/initramfs.o
  CC      init/init_task.o
  HOSTCC  usr/gen_init_cpio
  UPD     include/generated/compile.h
  CC      init/version.o
  AS      arch/sh/kernel/debugtraps.o
  CC      arch/sh/mm/alignment.o
  CC      arch/sh/kernel/dma-nommu.o
  LD      arch/sh/boards/built-in.o
  CC      kernel/fork.o
  GEN     usr/initramfs_data.cpio.gz
  AS      usr/initramfs_data.o
  CC      kernel/exec_domain.o
  LD      usr/built-in.o
  CC      kernel/panic.o
  CC      arch/sh/mm/cache.o
  CC      kernel/cpu.o
  CC      arch/sh/kernel/dumpstack.o
  CC      arch/sh/mm/init.o
  CC      kernel/exit.o
  CC      kernel/softirq.o
  CC      arch/sh/kernel/idle.o
  CC      arch/sh/mm/consistent.o
  CC      arch/sh/mm/mmap.o
  CC      arch/sh/mm/cache-sh4.o
  CC      arch/sh/mm/flush-sh4.o
  CC      arch/sh/kernel/io.o
  LD      init/mounts.o
  LD      init/built-in.o
  CC      arch/sh/mm/nommu.o
/home/kisskb/slave/src/arch/sh/mm/cache-sh4.c: In function 'flush_cache_one':
/home/kisskb/slave/src/arch/sh/mm/cache-sh4.c:99:17: error: 'cached_to_uncached' undeclared (first use in this function)
/home/kisskb/slave/src/arch/sh/mm/cache-sh4.c:99:17: note: each undeclared identifier is reported only once for each function it appears in
/home/kisskb/slave/src/arch/sh/mm/cache-sh4.c: In function 'sh4_flush_cache_mm':
/home/kisskb/slave/src/arch/sh/mm/cache-sh4.c:192:2: error: implicit declaration of function 'cpu_context' [-Werror=implicit-function-declaration]
cc1: all warnings being treated as errors
/home/kisskb/slave/src/scripts/Makefile.build:289: recipe for target 'arch/sh/mm/cache-sh4.o' failed
make[2]: *** [arch/sh/mm/cache-sh4.o] Error 1
make[2]: *** Waiting for unfinished jobs....
  CC      kernel/resource.o
  CC      arch/sh/kernel/irq.o
  CC      certs/system_keyring.o
  CC      arch/sh/kernel/irq_32.o
  CC      arch/sh/kernel/kdebugfs.o
/home/kisskb/slave/src/Makefile:968: recipe for target 'arch/sh/mm' failed
make[1]: *** [arch/sh/mm] Error 2
make[1]: *** Waiting for unfinished jobs....
  CC      arch/sh/kernel/machvec.o
  CC      arch/sh/kernel/nmi_debug.o
  EXTRACT_CERTS   
Generating X.509 key generation config
  CC      arch/sh/kernel/process.o
  CC      kernel/sysctl.o
###
### Now generating an X.509 key pair to be used for signing modules.
###
### If this takes a long time, you might wish to run rngd in the
### background to keep the supply of entropy topped up.  It
### needs to be run as root, and uses a hardware random
### number generator if one is available.
###
  CC      arch/sh/kernel/process_32.o
Generating a 4096 bit RSA private key
....  CC      arch/sh/kernel/ptrace.o
..  CC      arch/sh/kernel/ptrace_32.o
......  CC      arch/sh/kernel/reboot.o
.............  CC      arch/sh/kernel/return_address.o
  CC      kernel/sysctl_binary.o
.............  CC      arch/sh/kernel/setup.o
...  CC      arch/sh/kernel/signal_32.o
..  CC      arch/sh/kernel/sys_sh.o
....  AS      arch/sh/kernel/syscalls_32.o
..  CC      arch/sh/kernel/time.o
.........  CC      kernel/capability.o
.++
................  CC      kernel/ptrace.o
  CC      arch/sh/kernel/topology.o
  CC      kernel/user.o
..  CC      kernel/signal.o
..  CC      kernel/sys.o
.  CC      arch/sh/kernel/traps.o
.............  CC      arch/sh/kernel/traps_32.o
.........  CC      arch/sh/kernel/unwinder.o
....  CC      arch/sh/kernel/iomap.o
  CC      arch/sh/kernel/sys_sh32.o
........  CC      kernel/kmod.o
..............  CC      kernel/workqueue.o
....  CC      kernel/pid.o
  CC      kernel/task_work.o
.....  CC      kernel/extable.o
..............++
writing new private key to 'certs/signing_key.pem'
-----
  CC      arch/sh/kernel/cpu/irq/imask.o
###
### Key pair generated.
###
  EXTRACT_CERTS   certs/signing_key.pem
  AS      certs/system_certificates.o
  LD      certs/built-in.o
  CC      arch/sh/kernel/cpu/sh4/probe.o
  CC      kernel/params.o
  CC      kernel/kthread.o
  AS      arch/sh/kernel/cpu/sh4/../sh3/entry.o
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh4/../sh3/../../entry-common.S: Assembler messages:
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh4/../sh3/../../entry-common.S:89: Warning: overflow in branch to __restore_all; converted into longer instruction sequence
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh4/../sh3/../../entry-common.S:208: Warning: overflow in branch to syscall_call; converted into longer instruction sequence
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh4/../sh3/../../entry-common.S:356: Warning: overflow in branch to syscall_trace_entry; converted into longer instruction sequence
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh4/../sh3/../../entry-common.S:358: Warning: overflow in branch to syscall_trace_entry; converted into longer instruction sequence
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh4/../sh3/../../entry-common.S:389: Warning: overflow in branch to syscall_exit_work; converted into longer instruction sequence
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh4/../sh3/../../entry-common.S:392: Warning: overflow in branch to syscall_exit_work; converted into longer instruction sequence
  AS      arch/sh/kernel/cpu/sh4/../sh3/ex.o
  CC      arch/sh/kernel/cpu/sh4/fpu.o
  CC      arch/sh/kernel/cpu/sh4/softfloat.o
  LD      arch/sh/kernel/cpu/irq/built-in.o
  CC      arch/sh/kernel/cpu/sh4a/setup-sh7723.o
  CC      kernel/sys_ni.o
  CC      kernel/nsproxy.o
  CC      arch/sh/kernel/cpu/sh4a/clock-sh7723.o
  CC      arch/sh/kernel/cpu/sh4a/pinmux-sh7723.o
  CC      arch/sh/kernel/cpu/shmobile/pm.o
  CC      arch/sh/kernel/cpu/sh4a/perf_event.o
  CC      arch/sh/kernel/cpu/sh4a/ubc.o
  AS      arch/sh/kernel/cpu/shmobile/sleep.o
  LD      arch/sh/kernel/cpu/sh4/common.o
  LD      arch/sh/kernel/cpu/sh4/built-in.o
  CC      arch/sh/kernel/cpu/shmobile/cpuidle.o
  CC      arch/sh/kernel/sh_bios.o
  CC      arch/sh/kernel/sh_ksyms_32.o
  CC      kernel/notifier.o
  CC      arch/sh/kernel/cpu/init.o
  LD      arch/sh/kernel/cpu/sh4a/built-in.o
  CC      arch/sh/kernel/cpu/clock.o
  CC      arch/sh/kernel/cpu/fpu.o
  CC      arch/sh/kernel/cpu/pfc.o
  CC      arch/sh/kernel/cpu/proc.o
  LD      arch/sh/kernel/cpu/shmobile/built-in.o
  CC      arch/sh/kernel/module.o
  CC      kernel/ksysfs.o
  CC      kernel/cred.o
  CC      arch/sh/kernel/stacktrace.o
  CC      arch/sh/kernel/perf_event.o
  CC      arch/sh/kernel/perf_callchain.o
  CC      kernel/reboot.o
  CC      kernel/async.o
  CC      kernel/range.o
  CC      arch/sh/kernel/hw_breakpoint.o
  LD      arch/sh/kernel/cpu/built-in.o
  AS      arch/sh/kernel/head_32.o
  LDS     arch/sh/kernel/vmlinux.lds
  CC      kernel/smpboot.o
  CC      kernel/groups.o
  CC      kernel/bpf/core.o
  CC      kernel/events/core.o
  CC      kernel/events/ring_buffer.o
  CC      kernel/irq/irqdesc.o
  LD      kernel/livepatch/built-in.o
  LD      arch/sh/kernel/built-in.o
  CC      kernel/locking/mutex.o
  CC      kernel/power/qos.o
  CC      kernel/printk/printk.o
  CC      kernel/rcu/update.o
  CC      kernel/sched/core.o
  CC      kernel/irq/handle.o
  CC      kernel/locking/semaphore.o
  CC      kernel/rcu/sync.o
  CC      kernel/sched/loadavg.o
  CC      kernel/locking/rwsem.o
  CC      kernel/power/main.o
  CC      kernel/rcu/srcu.o
  CC      kernel/irq/manage.o
/home/kisskb/slave/src/kernel/sched/core.c: In function 'pick_next_task':
/home/kisskb/slave/src/kernel/sched/core.c:3277:1: warning: control reaches end of non-void function [-Wreturn-type]
  CC      kernel/locking/percpu-rwsem.o
  CC      kernel/events/callchain.o
  LD      kernel/bpf/built-in.o
  CC      kernel/rcu/tiny.o
  CC      kernel/time/time.o
  CC      kernel/time/timer.o
  CC      kernel/locking/rtmutex.o
  CC      kernel/power/console.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      kernel/power/process.o
  LD      kernel/rcu/built-in.o
  CC      kernel/sched/clock.o
  CC      kernel/printk/nmi.o
  CC      kernel/sched/cputime.o
  CC      kernel/irq/spurious.o
  CC      kernel/locking/rwsem-spinlock.o
  CC      kernel/irq/resend.o
  LD      kernel/printk/built-in.o
  CC      kernel/power/suspend.o
  CC      kernel/trace/trace_clock.o
  CC      kernel/time/hrtimer.o
  LD      kernel/locking/built-in.o
  CC      kernel/time/itimer.o
  CC      kernel/time/posix-timers.o
  CC      kernel/trace/ftrace.o
  CC      kernel/irq/chip.o
  CC      kernel/time/posix-cpu-timers.o
  CC      kernel/sched/idle_task.o
  CC      kernel/sched/fair.o
  CC      kernel/sched/rt.o
  LD      kernel/power/built-in.o
  CC      kernel/sched/deadline.o
  CC      kernel/trace/ring_buffer.o
  CC      kernel/irq/dummychip.o
  CC      kernel/irq/devres.o
  CC      kernel/freezer.o
  CC      kernel/time/timekeeping.o
  CC      kernel/sched/stop_task.o
  CC      kernel/sched/wait.o
  CC      kernel/irq/irqdomain.o
  CC      kernel/irq/proc.o
  CC      kernel/trace/trace.o
  CC      kernel/sched/swait.o
  CC      kernel/sched/completion.o
  CC      kernel/irq/pm.o
  CC      kernel/sched/idle.o
  CC      kernel/profile.o
  CC      kernel/stacktrace.o
  CC      kernel/trace/trace_output.o
  CC      kernel/trace/trace_seq.o
  CC      kernel/time/ntp.o
  CC      kernel/futex.o
  LD      kernel/irq/built-in.o
  CC      kernel/trace/trace_stat.o
  CC      kernel/sched/auto_group.o
  CC      kernel/events/hw_breakpoint.o
  CC      kernel/up.o
  CC      kernel/sched/cpuacct.o
  CC      kernel/time/clocksource.o
  CC      kernel/time/jiffies.o
  CC      kernel/time/timer_list.o
  CC      kernel/trace/trace_printk.o
  CC      kernel/time/timeconv.o
  LD      kernel/sched/built-in.o
  CC      kernel/uid16.o
  CC      kernel/time/timecounter.o
  CC      kernel/time/posix-clock.o
  CC      kernel/trace/trace_sched_switch.o
  CC      kernel/trace/trace_functions.o
  CC      kernel/trace/trace_irqsoff.o
  LD      kernel/events/built-in.o
  CC      kernel/module.o
  CC      kernel/trace/trace_nop.o
  CC      kernel/trace/trace_stack.o
  CC      kernel/trace/trace_branch.o
  CC      kernel/trace/blktrace.o
  CC      kernel/trace/trace_events.o
  CC      kernel/time/alarmtimer.o
  CC      kernel/module_signing.o
  CC      kernel/time/clockevents.o
  CC      kernel/kallsyms.o
  CC      kernel/cgroup.o
  CC      kernel/trace/trace_export.o
  CC      kernel/time/tick-common.o
  CC      kernel/trace/trace_event_perf.o
  CC      kernel/trace/trace_events_filter.o
  CC      kernel/cgroup_freezer.o
  CC      kernel/cpuset.o
  CC      kernel/trace/trace_events_trigger.o
  CC      kernel/time/sched_clock.o
  CC      kernel/trace/power-traces.o
  CC      kernel/trace/rpm-traces.o
  CC      kernel/time/tick-oneshot.o
  CC      kernel/trace/trace_benchmark.o
  CC      kernel/utsname.o
  CC      kernel/time/tick-sched.o
  CC      kernel/audit.o
  CC      kernel/time/timekeeping_debug.o
  LD      kernel/trace/libftrace.o
  CC      kernel/time/test_udelay.o
  CC      kernel/auditfilter.o
  CC      kernel/auditsc.o
  CC      kernel/audit_watch.o
  LD      kernel/trace/built-in.o
  CC      kernel/audit_fsnotify.o
  CC      kernel/audit_tree.o
  LD      kernel/time/built-in.o
  CC      kernel/relay.o
  CC      kernel/utsname_sysctl.o
  CC      kernel/tracepoint.o
  CC      kernel/irq_work.o
  CC      kernel/membarrier.o
  CC      kernel/memremap.o
  LD      kernel/built-in.o
make[1]: Leaving directory '/home/kisskb/slave/build/linus_sh-randconfig_sh4'
Makefile:150: recipe for target 'sub-make' failed
make: *** [sub-make] Error 2
Command 'make -j 10 ARCH=sh O=/home/kisskb/slave/build/linus_sh-randconfig_sh4 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-  ' returned non-zero exit status 2
# rm -rf /home/kisskb/slave/build/linus_sh-randconfig_sh4
# Build took: 0:00:26.089443