# git rev-parse -q --verify f6f3732162b5ae3c771b9285a5a32d72b8586920^{commit}
f6f3732162b5ae3c771b9285a5a32d72b8586920
already have revision, skipping fetch
# git checkout -q -f -B kisskb f6f3732162b5ae3c771b9285a5a32d72b8586920
# git clean -qxdf
# git log -1
commit f6f3732162b5ae3c771b9285a5a32d72b8586920
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Fri Dec 15 18:53:22 2017 -0800

    Revert "mm: replace p??_write with pte_access_permitted in fault + gup paths"
    
    This reverts commits 5c9d2d5c269c, c7da82b894e9, and e7fe7b5cae90.
    
    We'll probably need to revisit this, but basically we should not
    complicate the get_user_pages_fast() case, and checking the actual page
    table protection key bits will require more care anyway, since the
    protection keys depend on the exact state of the VM in question.
    
    Particularly when doing a "remote" page lookup (ie in somebody elses VM,
    not your own), you need to be much more careful than this was.  Dave
    Hansen says:
    
     "So, the underlying bug here is that we now a get_user_pages_remote()
      and then go ahead and do the p*_access_permitted() checks against the
      current PKRU. This was introduced recently with the addition of the
      new p??_access_permitted() calls.
    
      We have checks in the VMA path for the "remote" gups and we avoid
      consulting PKRU for them. This got missed in the pkeys selftests
      because I did a ptrace read, but not a *write*. I also didn't
      explicitly test it against something where a COW needed to be done"
    
    It's also not entirely clear that it makes sense to check the protection
    key bits at this level at all.  But one possible eventual solution is to
    make the get_user_pages_fast() case just abort if it sees protection key
    bits set, which makes us fall back to the regular get_user_pages() case,
    which then has a vma and can do the check there if we want to.
    
    We'll see.
    
    Somewhat related to this all: what we _do_ want to do some day is to
    check the PAGE_USER bit - it should obviously always be set for user
    pages, but it would be a good check to have back.  Because we have no
    generic way to test for it, we lost it as part of moving over from the
    architecture-specific x86 GUP implementation to the generic one in
    commit e585513b76f7 ("x86/mm/gup: Switch GUP to the generic
    get_user_page_fast() implementation").
    
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Dan Williams <dan.j.williams@intel.com>
    Cc: Dave Hansen <dave.hansen@intel.com>
    Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
    Cc: "Jérôme Glisse" <jglisse@redhat.com>
    Cc: Andrew Morton <akpm@linux-foundation.org>
    Cc: Al Viro <viro@zeniv.linux.org.uk>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-gcc --version
# < git log --format=%s --max-count=1 f6f3732162b5ae3c771b9285a5a32d72b8586920
# < make -j 120 ARCH=sh O=/home/kisskb/slave/build/linus_sh-allmodconfig_sh4 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-  allmodconfig
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# Added to kconfig CONFIG_SAMPLES=n
# yes \n | make -j 120 ARCH=sh O=/home/kisskb/slave/build/linus_sh-allmodconfig_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 120 ARCH=sh O=/home/kisskb/slave/build/linus_sh-allmodconfig_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-allmodconfig_sh4'
  GEN     ./Makefile
scripts/kconfig/conf  --silentoldconfig Kconfig
  CHK     include/config/kernel.release
  GEN     ./Makefile
  WRAP    arch/sh/include/generated/uapi/asm/bitsperlong.h
  WRAP    arch/sh/include/generated/uapi/asm/bpf_perf_event.h
  WRAP    arch/sh/include/generated/uapi/asm/errno.h
  WRAP    arch/sh/include/generated/uapi/asm/fcntl.h
  WRAP    arch/sh/include/generated/uapi/asm/ioctl.h
  WRAP    arch/sh/include/generated/uapi/asm/ipcbuf.h
  WRAP    arch/sh/include/generated/uapi/asm/kvm_para.h
  WRAP    arch/sh/include/generated/uapi/asm/mman.h
  WRAP    arch/sh/include/generated/uapi/asm/msgbuf.h
  WRAP    arch/sh/include/generated/uapi/asm/param.h
  WRAP    arch/sh/include/generated/uapi/asm/poll.h
  WRAP    arch/sh/include/generated/uapi/asm/resource.h
  WRAP    arch/sh/include/generated/uapi/asm/sembuf.h
  WRAP    arch/sh/include/generated/uapi/asm/siginfo.h
  WRAP    arch/sh/include/generated/uapi/asm/shmbuf.h
  WRAP    arch/sh/include/generated/uapi/asm/socket.h
  WRAP    arch/sh/include/generated/uapi/asm/statfs.h
  WRAP    arch/sh/include/generated/uapi/asm/termbits.h
  WRAP    arch/sh/include/generated/uapi/asm/termios.h
  WRAP    arch/sh/include/generated/uapi/asm/ucontext.h
  CHK     include/generated/uapi/linux/version.h
  UPD     include/generated/uapi/linux/version.h
  HOSTCC  scripts/basic/bin2c
  UPD     include/config/kernel.release
  Using /home/kisskb/slave/src as source for kernel
  WRAP    arch/sh/include/generated/asm/clkdev.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/exec.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/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/parport.h
  WRAP    arch/sh/include/generated/asm/percpu.h
  WRAP    arch/sh/include/generated/asm/preempt.h
  WRAP    arch/sh/include/generated/asm/rwsem.h
  WRAP    arch/sh/include/generated/asm/serial.h
  WRAP    arch/sh/include/generated/asm/sizes.h
  WRAP    arch/sh/include/generated/asm/trace_clock.h
  WRAP    arch/sh/include/generated/asm/xor.h
  CHK     include/generated/utsrelease.h
  UPD     include/generated/utsrelease.h
  HOSTCC  scripts/kallsyms
  HOSTCC  scripts/pnmtologo
  HOSTCC  scripts/conmakehash
  HOSTCC  scripts/asn1_compiler
  HOSTCC  scripts/extract-cert
  HOSTCC  scripts/insert-sys-cert
  HOSTCC  scripts/dtc/dtc.o
  HOSTCC  scripts/genksyms/genksyms.o
  SHIPPED scripts/genksyms/parse.tab.c
  HOSTCC  scripts/dtc/flattree.o
  SHIPPED scripts/genksyms/lex.lex.c
  SHIPPED scripts/genksyms/parse.tab.h
  HOSTCC  scripts/dtc/fstree.o
  HOSTCC  scripts/dtc/data.o
  CC      scripts/mod/empty.o
  HOSTCC  scripts/dtc/livetree.o
  HOSTCC  scripts/mod/mk_elfconfig
  HOSTCC  scripts/genksyms/parse.tab.o
  HOSTCC  scripts/dtc/treesource.o
  HOSTCC  scripts/genksyms/lex.lex.o
  HOSTCC  scripts/dtc/srcpos.o
  CC      scripts/mod/devicetable-offsets.s
  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-parser.tab.o
  HOSTCC  scripts/dtc/dtc-lexer.lex.o
  HOSTCC  scripts/selinux/genheaders/genheaders
  HOSTCC  scripts/selinux/mdp/mdp
  Generating include/generated/machtypes.h
  CHK     scripts/mod/devicetable-offsets.h
  UPD     scripts/mod/devicetable-offsets.h
  CC      kernel/bounds.s
  CHK     include/generated/timeconst.h
  UPD     include/generated/timeconst.h
  MKELF   scripts/mod/elfconfig.h
  HOSTCC  scripts/mod/modpost.o
  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
<stdin>:1317:2: warning: #warning syscall pkey_mprotect not implemented [-Wcpp]
<stdin>:1320:2: warning: #warning syscall pkey_alloc not implemented [-Wcpp]
<stdin>:1323:2: warning: #warning syscall pkey_free not implemented [-Wcpp]
<stdin>:1326:2: warning: #warning syscall statx not implemented [-Wcpp]
  HOSTLD  scripts/dtc/dtc
  HOSTLD  scripts/genksyms/genksyms
  HOSTLD  scripts/mod/modpost
  CC      init/main.o
  CHK     include/generated/compile.h
  CC      init/do_mounts.o
  HOSTCC  usr/gen_init_cpio
  CC      init/do_mounts_initrd.o
  CC      init/initramfs.o
  CC      init/calibrate.o
  CC      init/init_task.o
  CC      arch/sh/mm/alignment.o
  CC      arch/sh/mm/cache.o
  CC      arch/sh/mm/init.o
  AS      arch/sh/kernel/debugtraps.o
  CC      arch/sh/mm/consistent.o
  CC      arch/sh/mm/mmap.o
  CC      arch/sh/kernel/dma-nommu.o
  CC      arch/sh/mm/cache-sh2.o
  CC      arch/sh/kernel/dumpstack.o
  CC      arch/sh/mm/nommu.o
  CC      arch/sh/mm/extable_32.o
  CC      arch/sh/kernel/idle.o
  CC      arch/sh/boards/of-generic.o
  CC      arch/sh/mm/asids-debugfs.o
  CC      arch/sh/kernel/io.o
  UPD     include/generated/compile.h
  CC      arch/sh/kernel/irq.o
  CC      arch/sh/kernel/irq_32.o
make[2]: *** No rule to make target 'arch/sh/boot/dts/.dtb.o', needed by 'arch/sh/boot/dts/built-in.o'.  Stop.
  CC      arch/sh/math-emu/math.o
  CC      init/version.o
  CC      arch/sh/kernel/machvec.o
  CC      arch/sh/kernel/kdebugfs.o
/home/kisskb/slave/src/Makefile:1012: recipe for target 'arch/sh/boot/dts' failed
make[1]: *** [arch/sh/boot/dts] Error 2
make[1]: *** Waiting for unfinished jobs....
  CC      arch/sh/kernel/nmi_debug.o
  CC      arch/sh/kernel/process_32.o
  CC      arch/sh/kernel/process.o
  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      arch/sh/kernel/setup.o
  CC      arch/sh/kernel/sys_sh.o
  CC      arch/sh/kernel/signal_32.o
  AS      arch/sh/kernel/syscalls_32.o
  CC      arch/sh/kernel/time.o
  CC      arch/sh/kernel/topology.o
  CC      kernel/fork.o
  CC      arch/sh/kernel/traps.o
  CC      kernel/exit.o
  CC      arch/sh/boards/mach-se/board-se7619.o
  CC      arch/sh/kernel/iomap.o
  CC      arch/sh/kernel/sys_sh32.o
  CC      arch/sh/kernel/traps_32.o
  CC      kernel/cpu.o
  CC      kernel/exec_domain.o
  CC      kernel/resource.o
  CC      arch/sh/kernel/sh_ksyms_32.o
  CC      arch/sh/kernel/sh_bios.o
  CC      kernel/panic.o
  CC      kernel/softirq.o
  CC      arch/sh/kernel/unwinder.o
  CC      arch/sh/kernel/kgdb.o
  CC      arch/sh/kernel/crash_dump.o
  CC      arch/sh/kernel/stacktrace.o
  CC      kernel/capability.o
  CC      kernel/sysctl_binary.o
  CC      kernel/sysctl.o
  CC      arch/sh/kernel/dwarf.o
  CC      arch/sh/kernel/perf_callchain.o
  CC      arch/sh/kernel/hw_breakpoint.o
  CC      kernel/ptrace.o
  CC      arch/sh/kernel/disassemble.o
  CC      kernel/signal.o
  CC      arch/sh/kernel/module.o
  CC      arch/sh/kernel/ftrace.o
  LDS     arch/sh/kernel/vmlinux.lds
  CC      arch/sh/kernel/perf_event.o
  CC      arch/sh/kernel/kprobes.o
  CC      kernel/sys.o
  CC      kernel/user.o
  CC      kernel/umh.o
  AS      arch/sh/kernel/head_32.o
  CC      kernel/pid.o
  CC      kernel/workqueue.o
  CC      kernel/task_work.o
  CC      kernel/params.o
  CC      kernel/kthread.o
  CC      kernel/ksysfs.o
  CC      kernel/cred.o
  CC      kernel/extable.o
  CC      kernel/sys_ni.o
  CC      kernel/notifier.o
  CC      kernel/range.o
  CC      kernel/async.o
  CC      kernel/smpboot.o
  CC      kernel/ucount.o
  CC      kernel/nsproxy.o
  CC      kernel/kmod.o
  CC      arch/sh/kernel/cpu/init.o
  CC      arch/sh/kernel/cpu/clock-cpg.o
  CC      arch/sh/kernel/cpu/clock.o
  CC      kernel/groups.o
  CC      kernel/reboot.o
  CC      kernel/profile.o
  CC      arch/sh/kernel/cpu/proc.o
  CC      kernel/stacktrace.o
  CC      kernel/kcmp.o
  CC      kernel/freezer.o
  AS      arch/sh/kernel/cpu/sh2/ex.o
  CC      arch/sh/kernel/cpu/pfc.o
  CC      arch/sh/kernel/cpu/fpu.o
  CC      kernel/locking/mutex.o
  CC      kernel/trace/trace_selftest_dynamic.o
  CC      kernel/events/core.o
  CC      kernel/power/qos.o
  CC      kernel/sched/core.o
  CC      kernel/gcov/base.o
  CC      kernel/time/time.o
  CC      kernel/irq/irqdesc.o
  CC      kernel/printk/printk.o
  AR      kernel/livepatch/built-in.o
  CC      kernel/cgroup/cgroup.o
  CC      kernel/debug/debug_core.o
  CC      kernel/bpf/core.o
  CC      kernel/futex.o
  CC      kernel/rcu/update.o
  CC      arch/sh/kernel/cpu/irq/imask.o
  CC      kernel/irq/handle.o
  CC      kernel/up.o
  CC      arch/sh/kernel/cpu/sh2/probe.o
  GEN     usr/initramfs_data.cpio
  AS      arch/sh/kernel/cpu/sh2/entry.o
/home/kisskb/slave/src/arch/sh/kernel/cpu/clock-cpg.c: In function 'cpg_clk_init':
/home/kisskb/slave/src/arch/sh/kernel/cpu/clock-cpg.c:53:3: warning: 'arch_init_clk_ops' is deprecated (declared at /home/kisskb/slave/src/arch/sh/include/asm/clock.h:8) [-Wdeprecated-declarations]
/home/kisskb/slave/src/arch/sh/kernel/cpu/clock-cpg.c: In function 'arch_clk_init':
/home/kisskb/slave/src/arch/sh/kernel/cpu/clock-cpg.c:77:2: warning: 'cpg_clk_init' is deprecated (declared at /home/kisskb/slave/src/arch/sh/kernel/cpu/clock-cpg.c:47) [-Wdeprecated-declarations]
  CC      kernel/power/main.o
  CC      arch/sh/kernel/cpu/sh2/setup-sh7619.o
In file included from /home/kisskb/slave/src/arch/sh/math-emu/math.c:23:0:
/home/kisskb/slave/src/include/math-emu/single.h:50:21: warning: "__BIG_ENDIAN" is not defined [-Wundef]
In file included from /home/kisskb/slave/src/arch/sh/math-emu/math.c:24:0:
/home/kisskb/slave/src/include/math-emu/double.h:59:21: warning: "__BIG_ENDIAN" is not defined [-Wundef]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:54:0: warning: "WRITE" redefined [enabled by default]
/home/kisskb/slave/src/include/linux/kernel.h:65:0: note: this is the location of the previous definition
/home/kisskb/slave/src/arch/sh/math-emu/math.c:55:0: warning: "READ" redefined [enabled by default]
/home/kisskb/slave/src/include/linux/kernel.h:64:0: note: this is the location of the previous definition
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fcmp_gt':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:81:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:81:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fcmp_eq':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:92:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:92:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fadd':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: left shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fsub':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: left shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fmul':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: left shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: left shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fdiv':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fmac':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:145:2: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:145:2: warning: left shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:147:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:147:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:147:1: warning: statement with no effect [-Wunused-value]
  CC      kernel/power/poweroff.o
/home/kisskb/slave/src/arch/sh/kernel/cpu/clock.c: In function 'clk_init':
/home/kisskb/slave/src/arch/sh/kernel/cpu/clock.c:25:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh2/../../entry-common.S: Assembler messages:
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh2/../../entry-common.S:89: Warning: overflow in branch to __restore_all; converted into longer instruction sequence
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh2/../../entry-common.S:208: Warning: overflow in branch to syscall_call; converted into longer instruction sequence
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh2/../../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/sh2/../../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/sh2/../../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/sh2/../../entry-common.S:392: Warning: overflow in branch to syscall_exit_work; converted into longer instruction sequence
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'ffloat':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:294:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:294:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:294:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:294:3: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:294:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:294:3: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:294:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:296:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:296:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:296:1: warning: statement with no effect [-Wunused-value]
  CC      arch/sh/kernel/cpu/sh2/clock-sh7619.o
/home/kisskb/slave/src/arch/sh/math-emu/math.c:296:1: warning: statement with no effect [-Wunused-value]  CC      kernel/power/process.o

/home/kisskb/slave/src/arch/sh/math-emu/math.c:296:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'ftrc':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:310:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:310:1: warning: left shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:310:1: warning: left shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:310:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:310:1: warning: left shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fcnvsd':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:323:2: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:324:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:324:2: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:324:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:324:2: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:324:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fcnvds':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:333:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:334:2: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:334:2: warning: left shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:334:2: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:335:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:335:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:335:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: At top level:
/home/kisskb/slave/src/arch/sh/math-emu/math.c:505:12: warning: 'ieee_fpe_handler' defined but not used [-Wunused-function]
  CC      kernel/irq/manage.o
  CC      kernel/gcov/fs.o
  CC      kernel/gcov/gcc_3_4.o
  CC      kernel/uid16.o
  CC      kernel/module.o
  CC      kernel/kallsyms.o
  AR      arch/sh/boards/mach-se/built-in.o
  CC      kernel/irq/spurious.o
  CC      kernel/utsname.o
  CC      kernel/acct.o
  CC      kernel/user_namespace.o
  CC      kernel/pid_namespace.o
  CC      kernel/test_kprobes.o
  CC      kernel/sched/clock.o
  CC      kernel/sched/loadavg.o
  CC      kernel/sched/cputime.o
  AR      arch/sh/boards/built-in.o
  CC      kernel/events/ring_buffer.o
  AS      usr/initramfs_data.o
  CC      kernel/audit.o
  CC      kernel/auditfilter.o
  CC      kernel/sched/idle_task.o
  CC      kernel/auditsc.o
  CC      kernel/events/callchain.o
  CC      kernel/debug/gdbstub.o
  AR      usr/built-in.o
  CC      kernel/time/timer.o
  CC      kernel/events/hw_breakpoint.o
  CC      kernel/irq/resend.o
  CC      kernel/irq/chip.o
  CC      kernel/cgroup/stat.o
  CC      kernel/cgroup/namespace.o
  CC      kernel/locking/semaphore.o
  CC      kernel/irq/dummychip.o
  CC      kernel/cgroup/cgroup-v1.o
  CC      kernel/audit_watch.o
  CC      kernel/audit_fsnotify.o
  CC      kernel/debug/kdb/kdb_io.o
  CC      kernel/debug/kdb/kdb_main.o
  CC      kernel/audit_tree.o
  CC      kernel/irq/devres.o
  CC      kernel/debug/kdb/kdb_support.o
  CC      kernel/irq/generic-chip.o
  CC      kernel/time/hrtimer.o
  CC      kernel/debug/kdb/kdb_bt.o
  CC      kernel/kprobes.o
  CC      kernel/rcu/sync.o
  CC      kernel/locking/percpu-rwsem.o
  CC      kernel/sched/fair.o
  CC      kernel/locking/rwsem.o
  GENKDB  kernel/debug/kdb/gen-kdb_cmds.c
  CC      kernel/sched/rt.o
  CC      kernel/hung_task.o
  CC      kernel/debug/kdb/kdb_bp.o
  CC      kernel/sched/deadline.o
  CC      kernel/trace/trace_clock.o
  CC      kernel/seccomp.o
  CC      kernel/watchdog.o
  CC      kernel/trace/ftrace.o
  CC      kernel/relay.o
  CC      kernel/trace/trace.o
  AR      arch/sh/kernel/cpu/irq/built-in.o
  CC      kernel/trace/ring_buffer.o
  CC      kernel/taskstats.o
  CC      kernel/irq/irqdomain.o
  CC      kernel/delayacct.o
  CC      kernel/utsname_sysctl.o
  CC      kernel/bpf/syscall.o
  CC      kernel/debug/kdb/kdb_debugger.o
  CC      kernel/bpf/verifier.o
  CC      kernel/time/timekeeping.o
  AR      arch/sh/mm/built-in.o
  CC      kernel/tsacct.o
  AR      arch/sh/kernel/cpu/sh2/built-in.o
  CC      kernel/locking/mutex-debug.o
  CC      kernel/tracepoint.o
  CC      kernel/locking/lockdep.o
  CC      kernel/elfcore.o
  CC      kernel/latencytop.o
  CC      kernel/irq/irq_sim.o
  CC      kernel/irq_work.o
  AR      arch/sh/kernel/cpu/built-in.o
  CC      kernel/irq/proc.o
  CC      kernel/bpf/inode.o
  CC      kernel/irq/debugfs.o
  CC      kernel/crash_dump.o
  CC      kernel/memremap.o
  CC      kernel/bpf/helpers.o
  CC [M]  kernel/backtracetest.o
  AR      arch/sh/kernel/built-in.o
  CC      kernel/locking/lockdep_proc.o
  CC      kernel/bpf/tnum.o
  CC [M]  kernel/torture.o
  GZIP    kernel/config_data.gz
  CC      kernel/bpf/hashtab.o
  CHK     kernel/config_data.h
  CC      kernel/locking/spinlock.o
  CC      kernel/locking/rtmutex.o
  CC      kernel/bpf/arraymap.o
  CC      kernel/sched/wait.o
  CC      kernel/debug/kdb/kdb_keyboard.o
  CC      kernel/time/ntp.o
  UPD     kernel/config_data.h
  AR      kernel/gcov/built-in.o
  CC      kernel/time/clocksource.o
  CC      kernel/sched/wait_bit.o
  CC [M]  kernel/configs.o
  CC      kernel/cgroup/freezer.o
  CC      kernel/rcu/srcutiny.o
  CC      kernel/printk/braille.o
  CC      kernel/printk/printk_safe.o
  CC      kernel/sched/swait.o
  CC      kernel/rcu/tiny.o
  CC      kernel/bpf/percpu_freelist.o
  CC      kernel/debug/kdb/gen-kdb_cmds.o
  CC      kernel/sched/completion.o
  CC      kernel/bpf/bpf_lru_list.o
  CC [M]  kernel/rcu/rcutorture.o
  CC      kernel/sched/idle.o
  CC      kernel/locking/rtmutex-debug.o
  CC      kernel/locking/spinlock_debug.o
  CC      kernel/cgroup/pids.o
  CC      kernel/locking/rwsem-spinlock.o
  CC      kernel/trace/trace_output.o
  CC      kernel/cgroup/rdma.o
  AR      kernel/power/built-in.o
  CC [M]  kernel/locking/locktorture.o
  CC [M]  kernel/locking/test-ww_mutex.o
  CC      kernel/cgroup/debug.o
  CC      kernel/time/jiffies.o
  CC      kernel/sched/autogroup.o
  CC      kernel/sched/stats.o
  CC      kernel/bpf/lpm_trie.o
  CC      kernel/time/timer_list.o
  CC      kernel/bpf/map_in_map.o
  CC      kernel/time/timeconv.o
  CC      kernel/trace/trace_seq.o
  CC      kernel/trace/trace_stat.o
  CC      kernel/time/timecounter.o
  AR      init/mounts.o
  CC      kernel/trace/trace_printk.o
  CC      kernel/trace/trace_sched_switch.o
  AR      init/built-in.o
  CC [M]  kernel/rcu/rcuperf.o
  CC      kernel/sched/debug.o
  CC      kernel/bpf/disasm.o
  CC      kernel/trace/trace_functions.o
  CC      kernel/bpf/devmap.o
  CC      kernel/time/alarmtimer.o
  CC      kernel/sched/cpuacct.o
  CC      kernel/time/posix-timers.o
  CC      kernel/trace/trace_irqsoff.o
  CC      kernel/sched/cpufreq.o
  CC      kernel/trace/trace_sched_wakeup.o
  CC      kernel/sched/membarrier.o
  CC      kernel/trace/trace_hwlat.o
  CC      kernel/sched/isolation.o
  CC      kernel/trace/trace_nop.o
  CC      kernel/trace/trace_stack.o
  CC      kernel/trace/trace_functions_graph.o
  CC      kernel/bpf/cpumap.o
  CC      kernel/time/posix-cpu-timers.o
  CC      kernel/bpf/offload.o
  CC      kernel/trace/blktrace.o
  CC      kernel/time/posix-clock.o
  CC      kernel/time/itimer.o
  CC      kernel/bpf/sockmap.o
  CC      kernel/bpf/stackmap.o
  CC      kernel/time/clockevents.o
  CC      kernel/bpf/cgroup.o
  CC      kernel/time/tick-common.o
/home/kisskb/slave/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/home/kisskb/slave/src/kernel/printk/printk.c:186:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
  CC      kernel/trace/trace_events.o
  CC      kernel/trace/trace_export.o
  CC      kernel/time/sched_clock.o
  CC      kernel/time/tick-oneshot.o
/home/kisskb/slave/src/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount':
/home/kisskb/slave/src/kernel/cgroup/cgroup-v1.c:1264:20: warning: 'root' may be used uninitialized in this function [-Wuninitialized]
  CC      kernel/trace/trace_syscalls.o
  CC      kernel/time/tick-sched.o
  CC      kernel/time/timekeeping_debug.o
  CC      kernel/trace/trace_event_perf.o
  CC [M]  kernel/time/test_udelay.o
  CC      kernel/trace/trace_events_filter.o
  CC      kernel/trace/trace_events_trigger.o
  CC      kernel/trace/bpf_trace.o
  CC      kernel/trace/trace_kprobe.o
  CC      kernel/trace/power-traces.o
  CC      kernel/trace/rpm-traces.o
  CC      kernel/trace/trace_kdb.o
  CC      kernel/trace/trace_benchmark.o
  CC      kernel/trace/trace_probe.o
  CC [M]  kernel/trace/ring_buffer_benchmark.o
  AR      kernel/irq/built-in.o
  AR      kernel/rcu/built-in.o
  AR      arch/sh/math-emu/built-in.o
  AR      kernel/printk/built-in.o
  AR      kernel/debug/kdb/built-in.o
  AR      kernel/debug/built-in.o
  AR      kernel/time/built-in.o
  AR      kernel/bpf/built-in.o
  AR      kernel/locking/built-in.o
  AR      kernel/sched/built-in.o
  AR      kernel/trace/libftrace.o
  AR      kernel/cgroup/built-in.o
  AR      kernel/trace/built-in.o
  AR      kernel/events/built-in.o
  AR      kernel/built-in.o
make[1]: *** wait: No child processes.  Stop.
Makefile:146: recipe for target 'sub-make' failed
make: *** [sub-make] Error 2
Command 'make -j 120 ARCH=sh O=/home/kisskb/slave/build/linus_sh-allmodconfig_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-allmodconfig_sh4
# Build took: 0:00:11.383857