# git rev-parse -q --verify 10d20bd25e06b220b1d816228b036e367215dc60^{commit}
10d20bd25e06b220b1d816228b036e367215dc60
already have revision, skipping fetch
# git checkout -q -f -B kisskb 10d20bd25e06b220b1d816228b036e367215dc60
# git clean -qxdf
# git log -1
commit 10d20bd25e06b220b1d816228b036e367215dc60
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Mon Dec 5 12:10:29 2016 -0800

    shmem: fix shm fallocate() list corruption
    
    The shmem hole punching with fallocate(FALLOC_FL_PUNCH_HOLE) does not
    want to race with generating new pages by faulting them in.
    
    However, the wait-queue used to delay the page faulting has a serious
    problem: the wait queue head (in shmem_fallocate()) is allocated on the
    stack, and the code expects that "wake_up_all()" will make sure that all
    the queue entries are gone before the stack frame is de-allocated.
    
    And that is not at all necessarily the case.
    
    Yes, a normal wake-up sequence will remove the wait-queue entry that
    caused the wakeup (see "autoremove_wake_function()"), but the key
    wording there is "that caused the wakeup".  When there are multiple
    possible wakeup sources, the wait queue entry may well stay around.
    
    And _particularly_ in a page fault path, we may be faulting in new pages
    from user space while we also have other things going on, and there may
    well be other pending wakeups.
    
    So despite the "wake_up_all()", it's not at all guaranteed that all list
    entries are removed from the wait queue head on the stack.
    
    Fix this by introducing a new wakeup function that removes the list
    entry unconditionally, even if the target process had already woken up
    for other reasons.  Use that "synchronous" function to set up the
    waiters in shmem_fault().
    
    This problem has never been seen in the wild afaik, but Dave Jones has
    reported it on and off while running trinity.  We thought we fixed the
    stack corruption with the blk-mq rq_list locking fix (commit
    7fe311302f7d: "blk-mq: update hardware and software queues for sleeping
    alloc"), but it turns out there was _another_ stack corruptor hiding
    in the trinity runs.
    
    Vegard Nossum (also running trinity) was able to trigger this one fairly
    consistently, and made us look once again at the shmem code due to the
    faults often being in that area.
    
    Reported-and-tested-by: Vegard Nossum <vegard.nossum@oracle.com>.
    Reported-by: Dave Jones <davej@codemonkey.org.uk>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/br-sh4-full-2016.08-613-ge98b4dd/bin/sh4-linux-gcc --version
# < git log --format=%s --max-count=1 10d20bd25e06b220b1d816228b036e367215dc60
# < make -j 48 ARCH=sh O=/home/kisskb/slave/build/linus_se7721_defconfig_sh4 CROSS_COMPILE=/opt/cross/kisskb/br-sh4-full-2016.08-613-ge98b4dd/bin/sh4-linux-  se7721_defconfig
# make -j 48 ARCH=sh O=/home/kisskb/slave/build/linus_se7721_defconfig_sh4 CROSS_COMPILE=/opt/cross/kisskb/br-sh4-full-2016.08-613-ge98b4dd/bin/sh4-linux-  
make[1]: Entering directory '/home/kisskb/slave/build/linus_se7721_defconfig_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/mman.h
  WRAP    arch/sh/include/generated/asm/mcs_spinlock.h
  WRAP    arch/sh/include/generated/asm/msgbuf.h
  WRAP    arch/sh/include/generated/asm/mm-arch-hooks.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
  CC      scripts/mod/empty.o
  HOSTCC  scripts/mod/mk_elfconfig
  CC      scripts/mod/devicetable-offsets.s
  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
  Generating include/generated/machtypes.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/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/mod/modpost
<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]
  CC      init/main.o
  CHK     include/generated/compile.h
  CC      init/do_mounts.o
  CC      init/noinitramfs.o
  CC      init/init_task.o
  UPD     include/generated/compile.h
  LD      usr/built-in.o
  CC      init/version.o
  AS      arch/sh/kernel/debugtraps.o
  CC      arch/sh/kernel/dma-nommu.o
  CC      arch/sh/kernel/dumpstack.o
  CC      arch/sh/kernel/idle.o
  CC      arch/sh/kernel/io.o
  CC      arch/sh/kernel/irq.o
  CC      arch/sh/kernel/irq_32.o
  CC      arch/sh/kernel/kdebugfs.o
  CC      arch/sh/kernel/machvec.o
  CC      arch/sh/kernel/nmi_debug.o
  CC      arch/sh/kernel/process.o
  CC      arch/sh/kernel/process_32.o
  CC      arch/sh/kernel/ptrace.o
  CC      arch/sh/kernel/ptrace_32.o
  CC      arch/sh/kernel/signal_32.o
  CC      arch/sh/kernel/setup.o
  CC      arch/sh/kernel/return_address.o
  CC      arch/sh/kernel/sys_sh.o
  CC      arch/sh/kernel/reboot.o
  CC      arch/sh/kernel/time.o
  AS      arch/sh/kernel/syscalls_32.o
  CC      arch/sh/kernel/topology.o
  CC      arch/sh/kernel/traps_32.o
  CC      arch/sh/kernel/traps.o
  CC      arch/sh/kernel/unwinder.o
  CC      arch/sh/kernel/iomap.o
  CC      arch/sh/kernel/perf_event.o
  CC      arch/sh/kernel/hw_breakpoint.o
  CC      arch/sh/kernel/disassemble.o
  CC      arch/sh/kernel/sys_sh32.o
  AS      arch/sh/kernel/head_32.o
  LDS     arch/sh/kernel/vmlinux.lds
  CC      arch/sh/kernel/module.o
  CC      arch/sh/kernel/perf_callchain.o
  CC      arch/sh/kernel/sh_ksyms_32.o
  AS      arch/sh/kernel/vsyscall/vsyscall-trapa.o
  LDS     arch/sh/kernel/vsyscall/vsyscall.lds
  CC      arch/sh/kernel/vsyscall/vsyscall.o
  AS      arch/sh/kernel/vsyscall/vsyscall-note.o
  CC      arch/sh/mm/init.o
  CC      arch/sh/mm/cache.o
  CC      arch/sh/mm/alignment.o
  CC      arch/sh/mm/consistent.o
  CC      arch/sh/mm/mmap.o
  CC      arch/sh/mm/cache-sh3.o
  LD      arch/sh/boards/built-in.o
  CC      arch/sh/mm/extable_32.o
  CC      arch/sh/mm/fault.o
  CC      arch/sh/kernel/cpu/irq/imask.o
  CC      arch/sh/mm/gup.o
  CC      arch/sh/kernel/cpu/clock-cpg.o
  CC      arch/sh/mm/ioremap.o
  CC      arch/sh/kernel/cpu/init.o
  CC      arch/sh/mm/kmap.o
  AS      arch/sh/kernel/cpu/sh3/ex.o
  CC      arch/sh/mm/pgtable.o
  CC      arch/sh/kernel/cpu/sh3/probe.o
  CC      arch/sh/mm/tlbex_32.o
  AS      arch/sh/kernel/cpu/sh3/entry.o
  CC      arch/sh/mm/tlbflush_32.o
  CC      arch/sh/boards/mach-se/7721/setup.o
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh3/../../entry-common.S: Assembler messages:
/home/kisskb/slave/src/arch/sh/kernel/cpu/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/sh3/../../entry-common.S:392: Warning: overflow in branch to syscall_exit_work; converted into longer instruction sequence
  CC      arch/sh/mm/tlb-sh3.o
  SYSCALL arch/sh/kernel/vsyscall/vsyscall-trapa.so
  SYSCALL arch/sh/kernel/vsyscall/vsyscall-syms.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:52:3: warning: 'arch_init_clk_ops' is deprecated [-Wdeprecated-declarations]
   arch_init_clk_ops(&clk->ops, i);
   ^
In file included from /home/kisskb/slave/src/arch/sh/kernel/cpu/clock-cpg.c:6:0:
/home/kisskb/slave/src/arch/sh/include/asm/clock.h:7:19: note: declared here
 void __deprecated arch_init_clk_ops(struct sh_clk_ops **, int type);
                   ^
/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:76:2: warning: 'cpg_clk_init' is deprecated [-Wdeprecated-declarations]
  return cpg_clk_init();
  ^
/home/kisskb/slave/src/arch/sh/kernel/cpu/clock-cpg.c:46:25: note: declared here
 int __init __deprecated cpg_clk_init(void)
                         ^
  CC      arch/sh/boards/mach-se/7721/irq.o
  CC      arch/sh/mm/uncached.o
  CC      arch/sh/kernel/cpu/sh3/setup-sh3.o
  CC      arch/sh/kernel/cpu/sh3/serial-sh7720.o
  CC      arch/sh/kernel/cpu/sh3/setup-sh7720.o
  CC      arch/sh/kernel/cpu/sh3/clock-sh3.o
  AS      arch/sh/kernel/vsyscall/vsyscall-syscall.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/vsyscall/built-in.o
  LD      certs/built-in.o
  LD      arch/sh/boards/mach-se/7721/built-in.o
  LD      arch/sh/kernel/cpu/irq/built-in.o
  LD      arch/sh/boards/mach-se/built-in.o
  CC      kernel/fork.o
  CC      kernel/panic.o
  CC      kernel/exec_domain.o
  CC      kernel/resource.o
  CC      kernel/sysctl.o
  CC      kernel/capability.o
  CC      kernel/ptrace.o
  CC      kernel/exit.o
  CC      kernel/softirq.o
  CC      kernel/signal.o
  CC      kernel/user.o
  CC      kernel/sysctl_binary.o
  CC      kernel/cpu.o
  CC      kernel/kmod.o
  CC      kernel/notifier.o
  CC      kernel/workqueue.o
  CC      kernel/pid.o
  CC      kernel/sys_ni.o
  CC      kernel/sys.o
  CC      kernel/nsproxy.o
  CC      kernel/task_work.o
  CC      kernel/extable.o
  CC      kernel/params.o
  CC      kernel/kthread.o
  CC      kernel/async.o
  CC      kernel/reboot.o
  CC      kernel/ksysfs.o
  CC      kernel/cred.o
  CC      kernel/range.o
  CC      kernel/smpboot.o
  CC      kernel/ucount.o
  CC      kernel/groups.o
  CC      kernel/bpf/core.o
  LD      kernel/livepatch/built-in.o
  CC      kernel/power/qos.o
  CC      kernel/printk/printk.o
  CC      kernel/events/core.o
  CC      kernel/printk/nmi.o
  LD      arch/sh/kernel/cpu/sh3/built-in.o
  LD      arch/sh/mm/built-in.o
  CC      kernel/irq/irqdesc.o
  CC      kernel/rcu/update.o
  LD      arch/sh/kernel/cpu/built-in.o
  CC      kernel/irq/handle.o
  CC      kernel/locking/mutex.o
  CC      kernel/irq/manage.o
  CC      kernel/sched/core.o
  CC      kernel/locking/semaphore.o
  CC      kernel/sched/loadavg.o
  LD      arch/sh/kernel/built-in.o
  CC      kernel/futex.o
  LD      init/mounts.o
  CC      mm/filemap.o
  CC      kernel/up.o
  LD      init/built-in.o
  CC      ipc/util.o
  CC      kernel/uid16.o
  CC      kernel/kallsyms.o
  CC      kernel/time/time.o
  CC      kernel/acct.o
  CC      kernel/module.o
  CC      kernel/utsname.o
  CC      kernel/pid_namespace.o
  CC      kernel/utsname_sysctl.o
  LD      kernel/power/built-in.o
  CC      security/commoncap.o
  CC      kernel/elfcore.o
  CC      kernel/irq_work.o
  CC      kernel/membarrier.o
  CC      kernel/memremap.o
  CC      kernel/time/timer.o
  CC      kernel/sched/clock.o
  CC      kernel/time/hrtimer.o
  CC      kernel/sched/cputime.o
  CC      kernel/rcu/sync.o
  CC      kernel/rcu/srcu.o
  CC      kernel/irq/spurious.o
  CC      fs/open.o
  CC      kernel/irq/resend.o
  CC      fs/read_write.o
  CC      kernel/irq/chip.o
  CC      kernel/locking/rwsem.o
  CC      kernel/irq/dummychip.o
  CC      kernel/locking/percpu-rwsem.o
  CC      kernel/irq/devres.o
  CC      kernel/time/itimer.o
  CC      kernel/time/posix-timers.o
  CC      kernel/locking/rtmutex.o
  CC      kernel/locking/rwsem-spinlock.o
  CC      kernel/time/posix-cpu-timers.o
  CC      kernel/sched/idle_task.o
  CC      kernel/time/timekeeping.o
/home/kisskb/slave/src/kernel/sched/core.c: In function 'pick_next_task':
/home/kisskb/slave/src/kernel/sched/core.c:3292:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      kernel/rcu/tiny.o
  CC      kernel/time/ntp.o
  CC      kernel/sched/fair.o
  CC      kernel/time/clocksource.o
  CC      kernel/sched/rt.o
  CC      kernel/time/jiffies.o
  CC      kernel/sched/deadline.o
  CC      kernel/time/timer_list.o
  CC      kernel/irq/irqdomain.o
  CC      ipc/msgutil.o
  CC      ipc/msg.o
  CC      kernel/irq/proc.o
  CC      kernel/sched/stop_task.o
  CC      ipc/sem.o
  CC      kernel/sched/wait.o
  CC      kernel/sched/swait.o
  CC      kernel/sched/completion.o
  CC      ipc/shm.o
  CC      security/min_addr.o
  CC      ipc/syscall.o
  CC      kernel/sched/idle.o
  CC      kernel/sched/debug.o
  CC      kernel/time/timeconv.o
  CC      mm/mempool.o
  CC      kernel/time/timecounter.o
  CC      mm/oom_kill.o
  CC      kernel/time/posix-clock.o
  CC      kernel/time/alarmtimer.o
  CC      kernel/time/clockevents.o
  CC      kernel/time/tick-common.o
  LD      kernel/rcu/built-in.o
  CC      mm/maccess.o
  LD      kernel/bpf/built-in.o
  CC      kernel/time/sched_clock.o
  CC      mm/page_alloc.o
  CC      ipc/ipc_sysctl.o
  CC      mm/page-writeback.o
  CC      mm/readahead.o
  CC      ipc/mqueue.o
  CC      mm/swap.o
  CC      ipc/mq_sysctl.o
  CC      mm/truncate.o
  CC      ipc/namespace.o
  CC      mm/vmscan.o
  CC      mm/shmem.o
  CC      kernel/events/ring_buffer.o
  CC      mm/util.o
  CC      kernel/events/callchain.o
  LD      kernel/locking/built-in.o
  CC      mm/mmzone.o
  CC      kernel/events/hw_breakpoint.o
  LD      security/built-in.o
  CC      mm/vmstat.o
  CC      fs/file_table.o
  CC      fs/super.o
  CC      mm/backing-dev.o
  CC      fs/char_dev.o
  CC      fs/stat.o
  CC      mm/mm_init.o
  LD      kernel/irq/built-in.o
  CC      mm/mmu_context.o
  CC      fs/exec.o
  CC      mm/percpu.o
  CC      mm/slab_common.o
  CC      fs/pipe.o
  CC      mm/compaction.o
  CC      fs/namei.o
  CC      mm/vmacache.o
  CC      fs/fcntl.o
  CC      fs/ioctl.o
  CC      mm/interval_tree.o
  CC      mm/list_lru.o
  CC      mm/workingset.o
  CC      fs/readdir.o
  LD      kernel/printk/built-in.o
  CC      mm/debug.o
  CC      fs/select.o
  CC      mm/gup.o
  CC      mm/highmem.o
  CC      crypto/api.o
  CC      fs/dcache.o
  CC      block/bio.o
  CC      mm/memory.o
  CC      mm/mincore.o
  CC      block/elevator.o
  LD      sound/built-in.o
  CC      block/blk-core.o
  CC      mm/mmap.o
  CC      mm/mlock.o
  CC      fs/inode.o
  CC      mm/mprotect.o
  LD      kernel/sched/built-in.o
  CC      fs/attr.o
  CC      block/blk-tag.o
  CC      fs/bad_inode.o
  CC      fs/file.o
  LD      drivers/amba/built-in.o
  CC      mm/mremap.o
  CC      mm/msync.o
  CC      fs/filesystems.o
  CC      fs/namespace.o
  LD      firmware/built-in.o
  CC      mm/rmap.o
  CC      drivers/ata/libata-core.o
  LD      drivers/auxdisplay/built-in.o
  CC      mm/vmalloc.o
  CC      mm/pagewalk.o
  CC      mm/pgtable-generic.o
  LD      drivers/block/built-in.o
  CC      mm/process_vm_access.o
  LD      drivers/bus/built-in.o
  CC      mm/init-mm.o
  LD      arch/sh/drivers/dma/built-in.o
  CC      mm/bootmem.o
  CC      mm/fadvise.o
  CC      arch/sh/drivers/heartbeat.o
  LD      drivers/cdrom/built-in.o
  CC      fs/seq_file.o
  CC      mm/madvise.o
  CC      mm/memblock.o
  CC      mm/dmapool.o
  LD      drivers/char/ipmi/built-in.o
  CC      drivers/base/component.o
  CC      fs/xattr.o
  CC      crypto/cipher.o
  CC      drivers/char/mem.o
  CC      mm/slab.o
  CC      drivers/clk/clk-devres.o
  CC      fs/libfs.o
  CC      mm/migrate.o
/home/kisskb/slave/src/mm/bootmem.c: In function 'mark_bootmem':
/home/kisskb/slave/src/mm/bootmem.c:385:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      mm/quicklist.o
  CC      fs/fs-writeback.o
  LD      ipc/built-in.o
  CC      drivers/clk/clkdev.o
  CC      fs/pnode.o
  CC      fs/splice.o
  CC      drivers/char/random.o
  LD      kernel/time/built-in.o
  CC      fs/sync.o
  CC      fs/utimes.o
  CC      drivers/char/misc.o
  CC      block/blk-sysfs.o
  LD      drivers/clk/bcm/built-in.o
  LD      arch/sh/drivers/built-in.o
  LD      drivers/clk/mvebu/built-in.o
  CC      net/socket.o
  LD      drivers/clk/ti/built-in.o
  CC      block/blk-flush.o
  LD      net/802/built-in.o
  CC      block/blk-settings.o
  CC      block/blk-ioc.o
  CC      fs/stack.o
  CC      net/ethernet/eth.o
  CC      fs/fs_struct.o
  CC      block/blk-map.o
  CC      fs/statfs.o
  CC      fs/fs_pin.o
/home/kisskb/slave/src/mm/mmap.c: In function '__vma_adjust':
/home/kisskb/slave/src/mm/mmap.c:584:2: warning: 'rb_link' may be used uninitialized in this function [-Wmaybe-uninitialized]
  __vma_link_rb(mm, vma, rb_link, rb_parent);
  ^
/home/kisskb/slave/src/mm/mmap.c:615:19: note: 'rb_link' was declared here
  struct rb_node **rb_link, *rb_parent;
                   ^
/home/kisskb/slave/src/mm/mmap.c:584:2: warning: 'rb_parent' may be used uninitialized in this function [-Wmaybe-uninitialized]
  __vma_link_rb(mm, vma, rb_link, rb_parent);
  ^
/home/kisskb/slave/src/mm/mmap.c:615:29: note: 'rb_parent' was declared here
  struct rb_node **rb_link, *rb_parent;
                             ^
/home/kisskb/slave/src/mm/mmap.c:583:2: warning: 'prev' may be used uninitialized in this function [-Wmaybe-uninitialized]
  __vma_link_list(mm, vma, prev, rb_parent);
  ^
/home/kisskb/slave/src/mm/mmap.c:614:25: note: 'prev' was declared here
  struct vm_area_struct *prev;
                         ^
  CC      net/ipv6/addrconf_core.o
  AS      arch/sh/lib/movmem.o
  CC      drivers/base/core.o
  LD      drivers/clk/built-in.o
  CC      block/blk-exec.o
  CC      arch/sh/lib/ashldi3.o
  CC      drivers/clocksource/sh_cmt.o
  CC      fs/nsfs.o
  CC      crypto/compress.o
  CC      fs/buffer.o
  CC      net/core/sock.o
  LD      drivers/char/agp/built-in.o
  CC      fs/block_dev.o
  CC      fs/direct-io.o
  CC      fs/mpage.o
  CC      crypto/memneq.o
  CC      fs/proc_namespace.o
  CC      crypto/crypto_wq.o
  CC      fs/cramfs/inode.o
  CC      fs/devpts/inode.o
  CC      arch/sh/lib/ashrdi3.o
  LD      fs/exofs/built-in.o
  CC      net/ipv4/route.o
  CC      net/ipv4/inetpeer.o
  CC      fs/exportfs/expfs.o
  CC      block/blk-merge.o
  CC      drivers/base/bus.o
  CC      drivers/base/dd.o
  CC      drivers/base/syscore.o
  CC      lib/lockref.o
  CC      block/blk-softirq.o
  CC      crypto/algapi.o
  CC      fs/ext2/balloc.o
  CC      arch/sh/lib/lshrdi3.o
  CC      block/blk-timeout.o
  CC      fs/jbd2/transaction.o
  CC      block/blk-lib.o
  CC      fs/kernfs/mount.o
  CC      fs/fat/cache.o
  CC      lib/bcd.o
  CC      crypto/scatterwalk.o
  CC      fs/nls/nls_base.o
  CC      fs/notify/fsnotify.o
  CC      crypto/proc.o
  CC      lib/div64.o
  CC      fs/ext4/balloc.o
  CC      fs/jffs2/compr.o
  LD      drivers/char/built-in.o
  CC      fs/jffs2/dir.o
  LD      fs/exportfs/exportfs.o
  CC      drivers/base/driver.o
  CC      block/blk-mq.o
  CC      drivers/clocksource/sh_tmu.o
  LD      drivers/crypto/built-in.o
  LD      net/ethernet/built-in.o
  LD      fs/exportfs/built-in.o
  CC      net/ipv6/exthdrs_core.o
  CC      net/key/af_key.o
  LD      fs/quota/built-in.o
  LD      drivers/firewire/built-in.o
  AS      arch/sh/lib/ashlsi3.o
  CC      block/blk-mq-tag.o
  CC      fs/cramfs/uncompress.o
  AS      arch/sh/lib/ashrsi3.o
  CC      fs/ramfs/inode.o
  CC      fs/sysfs/file.o
  LD      fs/devpts/devpts.o
  CC      block/blk-mq-sysfs.o
  LD      drivers/firmware/broadcom/built-in.o
  LD      fs/devpts/built-in.o
  CC      fs/eventpoll.o
  CC      drivers/base/class.o
  AS      arch/sh/lib/ashiftrt.o
  LD      drivers/firmware/meson/built-in.o
  LD      fs/cramfs/cramfs.o
  AS      arch/sh/lib/lshrsi3.o
  LD      drivers/firmware/built-in.o
  CC      fs/fat/dir.o
  LD      fs/cramfs/built-in.o
  AS      arch/sh/lib/udiv_qrnnd.o
  CC      fs/fat/fatent.o
  CC      fs/kernfs/inode.o
  CC      fs/signalfd.o
  CC      fs/anon_inodes.o
  CC      fs/nls/nls_cp437.o
  CC      fs/jffs2/file.o
  CC      net/ipv4/protocol.o
  CC      arch/sh/lib/io.o
  CC      lib/sort.o
  CC      block/blk-mq-cpumap.o
  CC      crypto/aead.o
  LD      mm/built-in.o
  CC      fs/timerfd.o
  CC      drivers/base/platform.o
  AS      arch/sh/lib/__clear_user.o
  CC      fs/eventfd.o
  CC      fs/proc/task_mmu.o
  LD      drivers/gpu/drm/bridge/built-in.o
  LD      drivers/clocksource/built-in.o
  CC      fs/notify/notification.o
  CC      net/netlink/af_netlink.o
  CC      lib/parser.o
  CC      crypto/ablkcipher.o
  AS      arch/sh/lib/checksum.o
  CC      drivers/base/cpu.o
  LD      drivers/gpu/drm/hisilicon/built-in.o
  CC      fs/aio.o
  AS      arch/sh/lib/copy_page.o
  CC      fs/nls/nls_cp932.o
  CC      drivers/base/firmware.o
  LD      drivers/gpu/drm/i2c/built-in.o
  CC      block/ioctl.o
  CC      fs/sysfs/dir.o
  CC      fs/ext2/dir.o
  CC      arch/sh/lib/delay.o
  CC      fs/jffs2/ioctl.o
  CC      fs/ramfs/file-mmu.o
  LD      drivers/gpu/drm/omapdrm/displays/built-in.o
  CC      drivers/hid/hid-core.o
  CC      block/genhd.o
  CC      net/ipv6/ip6_checksum.o
  LD      virt/lib/built-in.o
  CC      arch/sh/lib/div64-generic.o
  LD      drivers/gpu/drm/omapdrm/dss/built-in.o
  CC      fs/locks.o
  CC      drivers/base/init.o
  LD      virt/built-in.o
  CC      net/ipv4/ip_input.o
  CC      fs/kernfs/dir.o
  CC      block/scsi_ioctl.o
  CC      net/ipv4/ip_fragment.o
  LD      drivers/gpu/drm/omapdrm/built-in.o
  AS      arch/sh/lib/div64.o
  CC      crypto/blkcipher.o
  CC      drivers/base/map.o
  CC      block/partition-generic.o
  AS      arch/sh/lib/memchr.o
  AS      arch/sh/lib/memcpy.o
  LD      drivers/gpu/drm/panel/built-in.o
  CC      block/ioprio.o
  LD      kernel/events/built-in.o
  LD      kernel/built-in.o
  AS      arch/sh/lib/memmove.o
  CC      fs/sysfs/symlink.o
  CC      lib/halfmd4.o
  LD      drivers/gpu/drm/tilcdc/built-in.o
  CC      fs/jffs2/nodelist.o
  LD      fs/ramfs/ramfs.o
  CC      fs/jffs2/malloc.o
  AS      arch/sh/lib/memset.o
  LD      fs/ramfs/built-in.o
  CC      fs/ext4/bitmap.o
  LD      drivers/gpu/drm/built-in.o
  AS      arch/sh/lib/strlen.o
  CC      fs/jbd2/commit.o
  AS      arch/sh/lib/udivsi3.o
  CC      fs/binfmt_script.o
  AS      arch/sh/lib/udivsi3_i4i.o
  CC      drivers/base/devres.o
  LD      drivers/gpu/vga/built-in.o
  CC      fs/notify/group.o
  CC      drivers/base/attribute_container.o
  CC      fs/binfmt_elf.o
  CC      net/core/request_sock.o
  LD      drivers/gpu/built-in.o
  AR      arch/sh/lib/lib.a
  CC      fs/mbcache.o
  CC      lib/debug_locks.o
  EXPORTS arch/sh/lib/lib-ksyms.o
  CC      fs/posix_acl.o
  CC      fs/coredump.o
  CC      fs/nls/nls_euc-jp.o
  CC      fs/fat/file.o
  LD      drivers/hwtracing/intel_th/built-in.o
  LD      arch/sh/lib/built-in.o
  CC      fs/fat/inode.o
  CC      block/badblocks.o
  CC      fs/drop_caches.o
  LD      drivers/i2c/algos/built-in.o
  CC      fs/proc/inode.o
  CC      lib/random32.o
  CC      drivers/base/transport_class.o
  CC      net/core/skbuff.o
  CC      crypto/skcipher.o
  LD      drivers/i2c/busses/built-in.o
  CC      crypto/echainiv.o
  CC      fs/fhandle.o
  LD      drivers/i2c/muxes/built-in.o
  CC      net/ipv6/ip6_icmp.o
  CC      drivers/base/topology.o
  CC      fs/jffs2/read.o
  LD      drivers/i2c/built-in.o
  CC      fs/sysfs/mount.o
/home/kisskb/slave/src/fs/posix_acl.c: In function 'acl_by_type':
/home/kisskb/slave/src/fs/posix_acl.c:34:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      drivers/base/container.o
  CC      fs/ext2/file.o
  LD      drivers/idle/built-in.o
  CC      fs/ext4/dir.o
  CC      fs/notify/inode_mark.o
  CC      crypto/ahash.o
  CC      fs/notify/mark.o
  CC      block/noop-iosched.o
  CC      block/partitions/check.o
  CC      drivers/base/property.o
  CC      drivers/base/cacheinfo.o
  CC      fs/nls/nls_iso8859-1.o
  CC      fs/kernfs/file.o
  CC      drivers/base/power/clock_ops.o
  CC      drivers/input/input.o
  CC      drivers/input/input-compat.o
  CC      drivers/base/dma-mapping.o
  CC      drivers/input/input-mt.o
  CC      lib/bust_spinlocks.o
  CC      drivers/ata/libata-scsi.o
  CC      net/ipv4/ip_forward.o
  CC      net/ipv4/ip_options.o
  CC      drivers/ata/libata-eh.o
  CC      drivers/base/dma-coherent.o
  CC      drivers/ata/libata-transport.o
  CC      fs/jffs2/nodemgmt.o
  CC      drivers/base/firmware_class.o
  CC      fs/fat/misc.o
  CC      crypto/shash.o
  CC      fs/sysfs/group.o
  CC      fs/proc/root.o
  CC      fs/proc/base.o
  CC      fs/jffs2/readinode.o
  CC      net/core/datagram.o
  CC      drivers/input/ff-core.o
  CC      fs/ext2/ialloc.o
  CC      fs/ext2/inode.o
  CC      fs/jbd2/recovery.o
  LD      drivers/base/power/built-in.o
  CC      drivers/base/module.o
  CC      net/ipv4/ip_output.o
  LD      fs/nls/built-in.o
  CC      lib/kasprintf.o
  CC      lib/bitmap.o
  CC      crypto/akcipher.o
  CC      fs/notify/vfsmount_mark.o
  CC      net/ipv6/output_core.o
  CC      block/partitions/msdos.o
  CC      fs/fat/nfs.o
  CC      fs/notify/fdinfo.o
  CC      fs/fat/namei_vfat.o
  CC      fs/fat/namei_msdos.o
  CC      lib/scatterlist.o
  LD      fs/notify/dnotify/built-in.o
  LD      fs/notify/fanotify/built-in.o
  CC      drivers/hid/hid-input.o
  CC      drivers/hid/hid-generic.o
  CC      fs/proc/generic.o
  CC      drivers/input/input-leds.o
  CC      fs/proc/array.o
  CC      fs/notify/inotify/inotify_fsnotify.o
  CC      drivers/input/mousedev.o
  CC      fs/kernfs/symlink.o
  LD      fs/sysfs/built-in.o
  CC      drivers/input/evdev.o
  CC      fs/proc/fd.o
  CC      fs/ext4/file.o
  LD      drivers/input/keyboard/built-in.o
  CC      net/netlink/genetlink.o
  CC      net/ipv4/ip_sockglue.o
  CC      crypto/kpp.o
  LD      drivers/input/mouse/built-in.o
  CC      fs/ext2/ioctl.o
  CC      fs/ext2/namei.o
  CC [M]  drivers/input/ff-memless.o
  CC      net/ipv4/inet_hashtables.o
  CC      fs/jffs2/write.o
  CC      fs/jffs2/scan.o
  CC      net/ipv4/inet_timewait_sock.o
  CC      fs/jffs2/gc.o
  CC      fs/jffs2/symlink.o
  CC      fs/ext2/super.o
  LD      drivers/base/built-in.o
  CC      fs/jffs2/build.o
  CC      fs/jffs2/erase.o
  CC      fs/ext2/symlink.o
  CC      fs/ext2/xattr.o
  CC      crypto/algboss.o
  LD      drivers/iommu/built-in.o
  LD      drivers/input/input-core.o
  CC      drivers/hid/hid-a4tech.o
  LD      drivers/irqchip/built-in.o
  CC      crypto/testmgr.o
  CC      fs/ext4/fsync.o
  LD      drivers/lguest/built-in.o
  CC      drivers/leds/led-core.o
  LD      fs/kernfs/built-in.o
  CC      fs/notify/inotify/inotify_user.o
  LD      drivers/macintosh/built-in.o
  LD      drivers/mfd/built-in.o
  CC      block/partitions/efi.o
  LD      drivers/mmc/built-in.o
  CC      fs/ext2/xattr_user.o
In file included from /home/kisskb/slave/src/fs/ext4/file.c:30:0:
/home/kisskb/slave/src/fs/ext4/ext4_jbd2.h: In function 'ext4_inode_journal_mode':
/home/kisskb/slave/src/fs/ext4/ext4_jbd2.h:428:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      fs/ext2/xattr_trusted.o
  CC      drivers/ata/libata-trace.o
  LD      drivers/misc/cb710/built-in.o
  CC      lib/gcd.o
  CC      fs/proc/proc_tty.o
  CC      fs/jffs2/background.o
  LD      drivers/media/common/b2c2/built-in.o
  CC      net/ipv6/protocol.o
  LD      drivers/misc/eeprom/built-in.o
  LD      drivers/media/common/saa7146/built-in.o
  CC      fs/ext2/acl.o
  CC      crypto/hmac.o
  CC      lib/lcm.o
  LD      drivers/misc/lis3lv02d/built-in.o
  LD      drivers/media/common/siano/built-in.o
  LD      fs/fat/fat.o
  LD      fs/fat/msdos.o
  CC      drivers/mtd/mtdcore.o
  CC      fs/ext2/xattr_security.o
  LD      net/key/built-in.o
  CC      lib/uuid.o
  CC      lib/list_sort.o
  LD      drivers/media/common/v4l2-tpg/built-in.o
  LD      drivers/misc/mic/bus/built-in.o
  CC      lib/flex_array.o
  LD      fs/fat/vfat.o
  CC      fs/jbd2/checkpoint.o
  LD      drivers/media/common/built-in.o
  LD      fs/fat/built-in.o
  CC      net/packet/af_packet.o
  CC      fs/proc/cmdline.o
  LD      drivers/misc/mic/built-in.o
  CC      fs/proc/consoles.o
In file included from /home/kisskb/slave/src/fs/ext4/fsync.c:32:0:
/home/kisskb/slave/src/fs/ext4/ext4_jbd2.h: In function 'ext4_inode_journal_mode':
/home/kisskb/slave/src/fs/ext4/ext4_jbd2.h:428:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      drivers/leds/led-class.o
  CC      crypto/crypto_null.o
  LD      drivers/media/firewire/built-in.o
  CC      lib/iov_iter.o
  CC      crypto/md5.o
  LD      drivers/misc/ti-st/built-in.o
  CC      fs/proc/cpuinfo.o
  LD      drivers/misc/built-in.o
  LD      drivers/media/i2c/soc_camera/built-in.o
  LD      drivers/media/mmc/siano/built-in.o
  CC      net/core/stream.o
  LD      drivers/input/built-in.o
  CC      fs/proc/devices.o
  CC      fs/ext4/ialloc.o
  CC      fs/jffs2/fs.o
  LD      drivers/media/mmc/built-in.o
  CC      fs/jffs2/writev.o
  LD      drivers/media/i2c/built-in.o
/home/kisskb/slave/src/fs/ext2/acl.c: In function 'ext2_get_acl':
/home/kisskb/slave/src/fs/ext2/acl.c:160:9: warning: 'name_index' may be used uninitialized in this function [-Wmaybe-uninitialized]
  retval = ext2_xattr_get(inode, name_index, "", NULL, 0);
         ^
  CC      lib/clz_ctz.o
  CC      fs/ext4/inode.o
  CC      drivers/hid/hid-apple.o
  LD      drivers/nfc/built-in.o
  CC      fs/jffs2/super.o
  CC      drivers/net/Space.o
  CC      fs/proc/interrupts.o
  LD      drivers/media/platform/omap/built-in.o
  CC      fs/proc/loadavg.o
  LD      drivers/nvme/host/built-in.o
  LD      drivers/nvme/target/built-in.o
  LD      drivers/media/platform/built-in.o
  CC      lib/bsearch.o
  LD      drivers/media/pci/b2c2/built-in.o
  CC      fs/ext4/page-io.o
  LD      drivers/nvme/built-in.o
  CC      fs/proc/meminfo.o
  CC      drivers/ata/libata-sff.o
  LD      drivers/media/rc/keymaps/built-in.o
  CC      fs/proc/stat.o
  LD      drivers/media/pci/ddbridge/built-in.o
  CC      drivers/ata/libata-pmp.o
  CC      crypto/sha1_generic.o
  CC      fs/jffs2/debug.o
  LD      drivers/perf/built-in.o
  CC      lib/find_bit.o
  CC      fs/jffs2/wbuf.o
  CC      drivers/leds/led-triggers.o
  CC      lib/llist.o
  LD      drivers/media/rc/built-in.o
  CC      fs/proc/uptime.o
  CC      fs/jffs2/compr_rtime.o
  LD      drivers/platform/built-in.o
  LD      drivers/media/pci/dm1105/built-in.o
  CC      crypto/sha256_generic.o
  LD      fs/ext2/ext2.o
  LD      drivers/media/spi/built-in.o
  CC      crypto/cbc.o
  CC      net/ipv6/ip6_offload.o
  LD      fs/ext2/built-in.o
  CC      net/ipv4/inet_connection_sock.o
  LD      drivers/media/pci/mantis/built-in.o
  CC      lib/memweight.o
  CC      net/ipv4/tcp.o
  LD      drivers/media/tuners/built-in.o
  CC      net/ipv4/tcp_input.o
  CC      fs/proc/version.o
  CC      drivers/power/supply/power_supply_core.o
  CC      fs/proc/softirqs.o
  CC      fs/jffs2/compr_zlib.o
  CC      fs/proc/namespaces.o
  CC      fs/jbd2/revoke.o
  CC      crypto/des_generic.o
  LD      drivers/media/pci/netup_unidvb/built-in.o
  LD      block/partitions/built-in.o
  CC      lib/kfifo.o
  LD      drivers/media/pci/ngene/built-in.o
  LD      drivers/media/pci/pluto2/built-in.o
  LD      block/built-in.o
  LD      drivers/media/pci/pt1/built-in.o
  LD      fs/notify/inotify/built-in.o
  LD      drivers/media/pci/pt3/built-in.o
  LD      drivers/media/usb/b2c2/built-in.o
  LD      fs/notify/built-in.o
  CC      drivers/power/supply/power_supply_sysfs.o
  LD      drivers/media/pci/saa7146/built-in.o
  LD      drivers/leds/trigger/built-in.o
  CC      drivers/hid/hid-belkin.o
  LD      drivers/media/pci/smipcie/built-in.o
  LD      drivers/media/usb/dvb-usb/built-in.o
  CC      drivers/power/supply/power_supply_leds.o
In file included from /home/kisskb/slave/src/fs/ext4/inode.c:41:0:
/home/kisskb/slave/src/fs/ext4/ext4_jbd2.h: In function 'ext4_inode_journal_mode':
/home/kisskb/slave/src/fs/ext4/ext4_jbd2.h:428:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  LD      drivers/media/pci/ttpci/built-in.o
  CC      fs/ext4/ioctl.o
  LD      net/netlink/built-in.o
  LD      drivers/media/pci/built-in.o
  LD      drivers/media/usb/dvb-usb-v2/built-in.o
  CC      fs/ext4/namei.o
  CC      drivers/net/loopback.o
  LD      drivers/media/usb/s2255/built-in.o
  CC      fs/proc/self.o
  LD      drivers/media/usb/siano/built-in.o
  CC      fs/proc/thread_self.o
  LD      drivers/media/usb/stkwebcam/built-in.o
  LD      drivers/media/usb/ttusb-budget/built-in.o
  CC      fs/proc/proc_sysctl.o
  CC      net/ipv4/tcp_output.o
  LD      drivers/media/usb/ttusb-dec/built-in.o
  CC      fs/proc/proc_net.o
  CC      fs/proc/kmsg.o
  LD      drivers/media/usb/zr364xx/built-in.o
  CC      fs/proc/page.o
  CC      net/unix/af_unix.o
  LD      drivers/media/usb/built-in.o
  CC      net/ipv4/tcp_timer.o
  CC      net/sched/sch_generic.o
  CC      net/unix/garbage.o
  CC      drivers/ata/pata_platform.o
  CC      net/ipv4/tcp_ipv4.o
  LD      drivers/leds/built-in.o
  CC      fs/ext4/super.o
  CC      drivers/mtd/mtdsuper.o
  CC      crypto/aes_generic.o
  LD      drivers/pwm/built-in.o
  LD      drivers/media/built-in.o
  CC      crypto/deflate.o
  CC      drivers/rtc/rtc-lib.o
  CC      net/ipv4/tcp_minisocks.o
  CC      net/core/gen_stats.o
  CC      net/ipv4/tcp_cong.o
  CC      net/core/scm.o
  CC      net/core/net_namespace.o
  CC      net/core/gen_estimator.o
  CC      crypto/crc32c_generic.o
  CC      fs/ext4/symlink.o
  LD      drivers/power/supply/power_supply.o
  CC      drivers/mtd/mtdconcat.o
  LD      drivers/power/supply/built-in.o
  CC      drivers/hid/hid-cherry.o
  CC      drivers/mtd/mtdpart.o
  CC      drivers/hid/hid-chicony.o
  LD      drivers/power/built-in.o
  CC      drivers/scsi/scsi.o
  CC      drivers/hid/hid-cypress.o
  CC      drivers/sh/clk/core.o
  CC      lib/percpu-refcount.o
  CC      fs/ext4/hash.o
  CC      drivers/mtd/mtdchar.o
  CC      crypto/authenc.o
  CC      fs/jbd2/journal.o
  CC      crypto/authencesn.o
  LD      drivers/net/usb/built-in.o
  LD      drivers/rtc/built-in.o
  LD      fs/jffs2/jffs2.o
  LD      drivers/soc/bcm/built-in.o
  CC      fs/ext4/resize.o
  CC      crypto/rng.o
  LD      fs/jffs2/built-in.o
  CC      drivers/hid/hid-ezkey.o
  CC      fs/ext4/extents.o
  CC      fs/ext4/ext4_jbd2.o
  LD      drivers/soc/fsl/built-in.o
  CC      net/ipv6/tcpv6_offload.o
/home/kisskb/slave/src/fs/ext4/inode.c: In function 'ext4_map_blocks':
/home/kisskb/slave/src/fs/ext4/inode.c:567:5: warning: 'retval' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if (retval > 0 && map->m_flags & EXT4_MAP_MAPPED) {
     ^
  CC      fs/ext4/migrate.o
  CC      crypto/drbg.o
  CC      drivers/hid/hid-gyration.o
  LD      drivers/soc/built-in.o
  LD      drivers/net/ethernet/8390/built-in.o
  CC      lib/percpu_ida.o
  CC      drivers/hid/hid-kensington.o
  LD      drivers/net/wireless/admtek/built-in.o
  LD      drivers/net/ethernet/amazon/built-in.o
  CC      drivers/thermal/thermal_core.o
  CC      crypto/jitterentropy.o
  CC      net/ipv4/tcp_metrics.o
  LD      drivers/net/wireless/ath/built-in.o
  LD      drivers/net/ethernet/arc/built-in.o
  CC      net/core/secure_seq.o
  LD      drivers/net/wireless/atmel/built-in.o
  LD      drivers/net/ethernet/broadcom/built-in.o
  CC      lib/rhashtable.o
  CC      net/unix/sysctl_net_unix.o
  CC      crypto/jitterentropy-kcapi.o
  LD      drivers/net/wireless/broadcom/built-in.o
  CC      net/core/flow_dissector.o
  LD      drivers/net/ethernet/cadence/built-in.o
  CC      net/core/sysctl_net_core.o
  LD      drivers/net/wireless/cisco/built-in.o
  LD      drivers/ata/libata.o
  LD      drivers/net/ethernet/ezchip/built-in.o
  LD      drivers/net/wireless/intel/built-in.o
  LD      drivers/ata/built-in.o
  LD      drivers/net/ethernet/i825xx/built-in.o
  CC      fs/ext4/mballoc.o
  CC      net/sched/sch_mq.o
In file included from /home/kisskb/slave/src/fs/ext4/extents.c:43:0:
/home/kisskb/slave/src/fs/ext4/ext4_jbd2.h: In function 'ext4_inode_journal_mode':
/home/kisskb/slave/src/fs/ext4/ext4_jbd2.h:428:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      drivers/hid/hid-lg.o
  LD      drivers/net/wireless/intersil/built-in.o
  LD      drivers/net/ethernet/intel/built-in.o
  CC      drivers/sh/clk/cpg.o
  CC      net/ipv4/tcp_fastopen.o
  LD      drivers/net/wireless/marvell/built-in.o
  CC      drivers/tty/tty_io.o
  LD      drivers/net/ethernet/marvell/built-in.o
  CC      drivers/tty/n_tty.o
  CC      net/ipv4/tcp_rate.o
  LD      drivers/net/wireless/mediatek/built-in.o
  CC      drivers/hid/hid-monterey.o
  CC      drivers/hid/hid-microsoft.o
  LD      drivers/net/ethernet/micrel/built-in.o
  CC      lib/reciprocal_div.o
  CC      net/core/dev.o
In file included from /home/kisskb/slave/src/fs/ext4/ext4_jbd2.c:5:0:
/home/kisskb/slave/src/fs/ext4/ext4_jbd2.h: In function 'ext4_inode_journal_mode':
/home/kisskb/slave/src/fs/ext4/ext4_jbd2.h:428:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  LD      fs/proc/proc.o
  LD      drivers/net/ethernet/natsemi/built-in.o
  LD      drivers/net/wireless/ralink/built-in.o
  LD      crypto/crypto.o
  CC      drivers/mtd/mtd_blkdevs.o
  LD      fs/proc/built-in.o
  LD      crypto/crypto_algapi.o
  CC      net/ipv6/exthdrs_offload.o
  LD      crypto/crypto_blkcipher.o
  CC      net/ipv4/tcp_recovery.o
  CC      drivers/scsi/hosts.o
/home/kisskb/slave/src/net/packet/af_packet.c: In function 'tpacket_rcv':
/home/kisskb/slave/src/net/packet/af_packet.c:2136:33: warning: 'hdrlen' may be used uninitialized in this function [-Wmaybe-uninitialized]
  unsigned short macoff, netoff, hdrlen;
                                 ^
  LD      crypto/crypto_hash.o
  LD      drivers/net/ethernet/netronome/built-in.o
  LD      crypto/cryptomgr.o
  LD      drivers/net/wireless/realtek/built-in.o
  CC      drivers/scsi/scsi_ioctl.o
/home/kisskb/slave/src/drivers/sh/clk/cpg.c: In function 'r8':
/home/kisskb/slave/src/drivers/sh/clk/cpg.c:41:17: warning: passing argument 1 of 'ioread8' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
  return ioread8(addr);
                 ^
In file included from /home/kisskb/slave/src/arch/sh/include/asm/io.h:20:0,
                 from /home/kisskb/slave/src/include/linux/io.h:25,
                 from /home/kisskb/slave/src/drivers/sh/clk/cpg.c:14:
/home/kisskb/slave/src/include/asm-generic/iomap.h:28:21: note: expected 'void *' but argument is of type 'const void *'
 extern unsigned int ioread8(void __iomem *);
                     ^
/home/kisskb/slave/src/drivers/sh/clk/cpg.c: In function 'r16':
/home/kisskb/slave/src/drivers/sh/clk/cpg.c:46:18: warning: passing argument 1 of 'ioread16' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
  return ioread16(addr);
                  ^
In file included from /home/kisskb/slave/src/arch/sh/include/asm/io.h:20:0,
                 from /home/kisskb/slave/src/include/linux/io.h:25,
                 from /home/kisskb/slave/src/drivers/sh/clk/cpg.c:14:
/home/kisskb/slave/src/include/asm-generic/iomap.h:29:21: note: expected 'void *' but argument is of type 'const void *'
 extern unsigned int ioread16(void __iomem *);
                     ^
/home/kisskb/slave/src/drivers/sh/clk/cpg.c: In function 'r32':
/home/kisskb/slave/src/drivers/sh/clk/cpg.c:51:18: warning: passing argument 1 of 'ioread32' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
  return ioread32(addr);
                  ^
In file included from /home/kisskb/slave/src/arch/sh/include/asm/io.h:20:0,
                 from /home/kisskb/slave/src/include/linux/io.h:25,
                 from /home/kisskb/slave/src/drivers/sh/clk/cpg.c:14:
/home/kisskb/slave/src/include/asm-generic/iomap.h:31:21: note: expected 'void *' but argument is of type 'const void *'
 extern unsigned int ioread32(void __iomem *);
                     ^
  CC      drivers/scsi/scsicam.o
  LD      drivers/net/wireless/rsi/built-in.o
  CC      drivers/scsi/scsi_error.o
  LD      drivers/net/ethernet/qualcomm/emac/built-in.o
  CC      lib/once.o
  LD      drivers/net/wireless/st/built-in.o
  CC      drivers/usb/common/common.o
  LD      drivers/net/ethernet/qualcomm/built-in.o
  LD      drivers/net/wireless/ti/built-in.o
  CC      net/core/ethtool.o
  CC      fs/ext4/block_validity.o
  LD      drivers/net/ethernet/renesas/built-in.o
  LD      drivers/net/wireless/zydas/built-in.o
  CC      fs/ext4/move_extent.o
  LD      drivers/net/ethernet/rocker/built-in.o
  LD      drivers/net/wireless/built-in.o
  LD      net/packet/built-in.o
  CC      net/sched/sch_api.o
  LD      drivers/net/ethernet/samsung/built-in.o
  LD      net/wireless/built-in.o
  LD      crypto/jitterentropy_rng.o
  CC      drivers/hid/hid-pl.o
  LD      drivers/net/ethernet/seeq/built-in.o
  CC      drivers/mtd/mtdblock.o
  LD      crypto/built-in.o
  LD      drivers/sh/clk/built-in.o
  LD      drivers/mtd/devices/built-in.o
  LD      drivers/net/ethernet/smsc/built-in.o
  CC      drivers/sh/pm_runtime.o
  CC      drivers/mtd/chips/cfi_probe.o
  CC      drivers/mtd/chips/chipreg.o
  LD      drivers/net/ethernet/stmicro/built-in.o
  CC      drivers/hid/hid-petalynx.o
  LD      drivers/net/ethernet/synopsys/built-in.o
In file included from /home/kisskb/slave/src/fs/ext4/mballoc.c:24:0:
/home/kisskb/slave/src/fs/ext4/ext4_jbd2.h: In function 'ext4_inode_journal_mode':
/home/kisskb/slave/src/fs/ext4/ext4_jbd2.h:428:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      net/ipv4/tcp_offload.o
  LD      drivers/mtd/lpddr/built-in.o
  CC      net/xfrm/xfrm_policy.o
  CC      lib/string_helpers.o
  CC      drivers/sh/intc/access.o
  LD      drivers/net/ethernet/via/built-in.o
  LD      drivers/mtd/maps/built-in.o
  LD      drivers/net/ethernet/wiznet/built-in.o
  LD      net/ipv6/built-in.o
  CC      lib/hexdump.o
  LD      drivers/net/ethernet/built-in.o
  LD      drivers/mtd/nand/built-in.o
  CC      net/sysctl_net.o
  CC      net/core/dev_addr_lists.o
In file included from /home/kisskb/slave/src/include/linux/mtd/cfi.h:29:0,
                 from /home/kisskb/slave/src/drivers/mtd/chips/cfi_probe.c:18:
/home/kisskb/slave/src/drivers/mtd/chips/cfi_probe.c: In function 'cfi_probe_chip':
/home/kisskb/slave/src/include/linux/mtd/cfi_endian.h:51:30: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized]
 #define _cfi_to_cpu(w, s, x) (cfi_host(s)?(x):_swap_to_cpu(w, s, x))
                              ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_probe.c:17:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:413:11: note: 'r.x[0]' was declared here
  map_word r;
           ^
In file included from /home/kisskb/slave/src/include/linux/mtd/cfi.h:29:0,
                 from /home/kisskb/slave/src/drivers/mtd/chips/cfi_probe.c:18:
/home/kisskb/slave/src/include/linux/mtd/cfi_endian.h:51:30: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized]
 #define _cfi_to_cpu(w, s, x) (cfi_host(s)?(x):_swap_to_cpu(w, s, x))
                              ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_probe.c:17:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:413:11: note: 'r.x[0]' was declared here
  map_word r;
           ^
In file included from /home/kisskb/slave/src/include/linux/mtd/cfi.h:29:0,
                 from /home/kisskb/slave/src/drivers/mtd/chips/cfi_probe.c:18:
/home/kisskb/slave/src/include/linux/mtd/cfi_endian.h:51:30: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized]
 #define _cfi_to_cpu(w, s, x) (cfi_host(s)?(x):_swap_to_cpu(w, s, x))
                              ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_probe.c:17:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:413:11: note: 'r.x[0]' was declared here
  map_word r;
           ^
In file included from /home/kisskb/slave/src/include/linux/mtd/cfi.h:29:0,
                 from /home/kisskb/slave/src/drivers/mtd/chips/cfi_probe.c:18:
/home/kisskb/slave/src/include/linux/mtd/cfi_endian.h:51:30: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized]
 #define _cfi_to_cpu(w, s, x) (cfi_host(s)?(x):_swap_to_cpu(w, s, x))
                              ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_probe.c:17:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:413:11: note: 'r.x[0]' was declared here
  map_word r;
           ^
In file included from /home/kisskb/slave/src/include/linux/mtd/cfi.h:29:0,
                 from /home/kisskb/slave/src/drivers/mtd/chips/cfi_probe.c:18:
/home/kisskb/slave/src/include/linux/mtd/cfi_endian.h:51:30: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized]
 #define _cfi_to_cpu(w, s, x) (cfi_host(s)?(x):_swap_to_cpu(w, s, x))
                              ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_probe.c:17:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:413:11: note: 'r.x[0]' was declared here
  map_word r;
           ^
In file included from /home/kisskb/slave/src/include/linux/mtd/cfi.h:29:0,
                 from /home/kisskb/slave/src/drivers/mtd/chips/cfi_probe.c:18:
/home/kisskb/slave/src/include/linux/mtd/cfi_endian.h:51:30: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized]
 #define _cfi_to_cpu(w, s, x) (cfi_host(s)?(x):_swap_to_cpu(w, s, x))
                              ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_probe.c:17:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:413:11: note: 'r.x[0]' was declared here
  map_word r;
           ^
  LD      drivers/mtd/onenand/built-in.o
  LD      drivers/usb/common/usb-common.o
  CC      drivers/scsi/scsi_lib.o
  LD      drivers/usb/common/built-in.o
  LD      drivers/mtd/tests/built-in.o
  LD      drivers/mtd/mtd.o
  CC      drivers/sh/intc/chip.o
  CC      drivers/scsi/scsi_common.o
In file included from /home/kisskb/slave/src/fs/ext4/move_extent.c:19:0:
/home/kisskb/slave/src/fs/ext4/ext4_jbd2.h: In function 'ext4_inode_journal_mode':
/home/kisskb/slave/src/fs/ext4/ext4_jbd2.h:428:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      drivers/sh/intc/core.o
  CC      lib/kstrtox.o
  CC      drivers/mtd/chips/cfi_util.o
  CC      lib/iomap_copy.o
  CC      drivers/hid/hid-samsung.o
/home/kisskb/slave/src/net/core/ethtool.c: In function 'ethtool_get_feature_mask':
/home/kisskb/slave/src/net/core/ethtool.c:300:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  LD      net/unix/unix.o
  CC      net/ipv4/datagram.o
  LD      drivers/net/built-in.o
  CC      drivers/mtd/chips/cfi_cmdset_0002.o
  LD      net/unix/built-in.o
  CC      drivers/hid/hid-sony.o
  CC      drivers/mtd/chips/gen_probe.o
  CC      lib/devres.o
  CC      net/ipv4/raw.o
  CC      drivers/scsi/scsi_lib_dma.o
  CC      drivers/usb/core/usb.o
  CC      fs/ext4/mmp.o
  CC      drivers/scsi/scsi_scan.o
  CC      net/ipv4/udp.o
  LD      drivers/video/backlight/built-in.o
  CC      net/ipv4/udplite.o
  CC      lib/hweight.o
  CC      drivers/hid/hid-sunplus.o
  CC      drivers/sh/intc/handle.o
  CC      drivers/video/console/dummycon.o
  CC      fs/ext4/indirect.o
  CC      drivers/hid/usbhid/hid-core.o
  CC      lib/bitrev.o
  CC      drivers/sh/intc/irqdomain.o
  CC      net/ipv4/udp_offload.o
  LD      fs/jbd2/jbd2.o
  CC      net/core/dst.o
  CC      drivers/thermal/step_wise.o
  LD      fs/jbd2/built-in.o
  CC      fs/ext4/extents_status.o
  CC      net/core/netevent.o
/home/kisskb/slave/src/drivers/mtd/chips/cfi_util.c: In function 'cfi_send_gen_cmd':
/home/kisskb/slave/src/drivers/mtd/chips/cfi_util.c:206:13: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized]
   *prev_val = map_read(map, addr);
             ^
  CC      lib/crc-ccitt.o
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_util.c:23:0:
/home/kisskb/slave/src/drivers/mtd/chips/cfi_util.c: In function 'cfi_qry_present':
/home/kisskb/slave/src/include/linux/mtd/map.h:279:6: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (val1.x[i] != val2.x[i])
      ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_util.c:23:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:413:11: note: 'r.x[0]' was declared here
  map_word r;
           ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_util.c:23:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:279:6: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (val1.x[i] != val2.x[i])
      ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_util.c:23:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:413:11: note: 'r.x[0]' was declared here
  map_word r;
           ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_util.c:23:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:279:6: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (val1.x[i] != val2.x[i])
      ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_util.c:23:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:413:11: note: 'r.x[0]' was declared here
  map_word r;
           ^
  CC      drivers/scsi/scsi_sysfs.o
In file included from /home/kisskb/slave/src/include/linux/mtd/cfi.h:29:0,
                 from /home/kisskb/slave/src/drivers/mtd/chips/cfi_util.c:24:
/home/kisskb/slave/src/drivers/mtd/chips/cfi_util.c: In function 'cfi_read_pri':
/home/kisskb/slave/src/include/linux/mtd/cfi_endian.h:51:30: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized]
 #define _cfi_to_cpu(w, s, x) (cfi_host(s)?(x):_swap_to_cpu(w, s, x))
                              ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_util.c:23:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:413:11: note: 'r.x[0]' was declared here
  map_word r;
           ^
  CC      lib/crc16.o
  HOSTCC  lib/gen_crc32table
  LD      drivers/hid/hid-logitech.o
  CC      drivers/scsi/scsi_devinfo.o
  CC      drivers/sh/intc/virq.o
  CC      fs/ext4/xattr.o
  CC      lib/syscall.o
  CC      lib/zlib_deflate/deflate.o
  CC      lib/nlattr.o
  CC      lib/atomic64.o
  CC      lib/zlib_deflate/deftree.o
  CC      lib/dynamic_queue_limits.o
  CC      lib/zlib_inflate/inffast.o
  LD      drivers/video/console/built-in.o
  CC      fs/ext4/xattr_user.o
  CC      net/ipv4/arp.o
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c:37:0:
/home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c: In function 'chip_ready.isra.1':
/home/kisskb/slave/src/include/linux/mtd/map.h:279:6: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (val1.x[i] != val2.x[i])
      ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c:37:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:413:11: note: 'r.x[0]' was declared here
  map_word r;
           ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c:37:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:279:6: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (val1.x[i] != val2.x[i])
      ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c:37:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:413:11: note: 'r.x[0]' was declared here
  map_word r;
           ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c:37:0:
/home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c: In function 'chip_good.isra.2':
/home/kisskb/slave/src/include/linux/mtd/map.h:279:6: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (val1.x[i] != val2.x[i])
      ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c:37:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:413:11: note: 'r.x[0]' was declared here
  map_word r;
           ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c:37:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:279:6: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (val1.x[i] != val2.x[i])
      ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c:37:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:413:11: note: 'r.x[0]' was declared here
  map_word r;
           ^
  CC      drivers/tty/tty_ioctl.o
  LD      drivers/video/fbdev/core/built-in.o
  CC      lib/glob.o
  CC      drivers/usb/core/hub.o
  CC      net/core/neighbour.o
/home/kisskb/slave/src/fs/ext4/extents.c: In function 'ext4_ext_map_blocks':
/home/kisskb/slave/src/fs/ext4/extents.c:2326:14: warning: 'len' may be used uninitialized in this function [-Wmaybe-uninitialized]
  ext4_lblk_t len;
              ^
  CC      lib/strncpy_from_user.o
  CC      net/core/rtnetlink.o
  CC      lib/strnlen_user.o
  LD      drivers/video/fbdev/omap2/omapfb/displays/built-in.o
  CC      fs/ext4/xattr_trusted.o
  CC      net/ipv4/icmp.o
  CC      lib/net_utils.o
  LD      drivers/thermal/samsung/built-in.o
  LD      drivers/video/fbdev/omap2/omapfb/dss/built-in.o
In file included from /home/kisskb/slave/src/include/linux/mtd/cfi.h:29:0,
                 from /home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c:39:
/home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c: In function 'do_otp_lock':
/home/kisskb/slave/src/include/linux/mtd/cfi_endian.h:51:30: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized]
 #define _cfi_to_cpu(w, s, x) (cfi_host(s)?(x):_swap_to_cpu(w, s, x))
                              ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c:37:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:413:11: note: 'r.x[0]' was declared here
  map_word r;
           ^
In file included from /home/kisskb/slave/src/fs/ext4/indirect.c:23:0:
/home/kisskb/slave/src/fs/ext4/ext4_jbd2.h: In function 'ext4_inode_journal_mode':
/home/kisskb/slave/src/fs/ext4/ext4_jbd2.h:428:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  LD      drivers/thermal/thermal_sys.o
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c:37:0:
/home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c: In function 'do_write_oneword':
/home/kisskb/slave/src/include/linux/mtd/map.h:279:6: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (val1.x[i] != val2.x[i])
      ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c:37:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:413:11: note: 'r.x[0]' was declared here
  map_word r;
           ^
  LD      drivers/video/fbdev/omap2/omapfb/built-in.o
  CC      net/ipv4/devinet.o
  LD      drivers/thermal/built-in.o
  CC      lib/sg_pool.o
  CC      fs/ext4/inline.o
  CC      lib/sbitmap.o
  LD      drivers/video/fbdev/omap2/built-in.o
/home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c: In function 'cfi_amdstd_write_words':
/home/kisskb/slave/src/include/linux/mtd/map.h:382:14: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized]
    orig.x[0] &= ~(0xff << bitpos);
              ^
/home/kisskb/slave/src/include/linux/mtd/map.h:413:11: note: 'r.x[0]' was declared here
  map_word r;
           ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c:37:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:345:11: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized]
  map_word r;
           ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c:37:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:382:14: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized]
    orig.x[0] &= ~(0xff << bitpos);
              ^
/home/kisskb/slave/src/include/linux/mtd/map.h:413:11: note: 'r.x[0]' was declared here
  map_word r;
           ^
  CC      lib/zlib_inflate/inflate.o
  LD      drivers/hid/hid.o
  LD      drivers/video/fbdev/built-in.o
  CC      net/ipv4/af_inet.o
  CC      drivers/usb/core/hcd.o
  CC      net/core/utils.o
  CC      net/ipv4/igmp.o
  LD      drivers/video/built-in.o
  CC      drivers/tty/tty_ldisc.o
  CC      drivers/usb/host/ohci-hcd.o
  CC      lib/argv_split.o
  CC      lib/bug.o
  CC      drivers/usb/host/ohci-platform.o
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c:37:0:
/home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c: In function 'do_panic_write_oneword':
/home/kisskb/slave/src/include/linux/mtd/map.h:279:6: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (val1.x[i] != val2.x[i])
      ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c:37:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:413:11: note: 'r.x[0]' was declared here
  map_word r;
           ^
/home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c: In function 'cfi_amdstd_panic_write':
/home/kisskb/slave/src/include/linux/mtd/map.h:382:14: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized]
    orig.x[0] &= ~(0xff << bitpos);
              ^
/home/kisskb/slave/src/include/linux/mtd/map.h:413:11: note: 'r.x[0]' was declared here
  map_word r;
           ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c:37:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:345:11: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized]
  map_word r;
           ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c:37:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:382:14: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized]
    orig.x[0] &= ~(0xff << bitpos);
              ^
/home/kisskb/slave/src/include/linux/mtd/map.h:413:11: note: 'r.x[0]' was declared here
  map_word r;
           ^
  CC      net/ipv4/fib_frontend.o
  CC      lib/chacha20.o
  LD      drivers/sh/intc/built-in.o
In file included from /home/kisskb/slave/src/include/linux/mtd/cfi.h:29:0,
                 from /home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c:39:
/home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c: In function 'cfi_amdstd_otp_walk.isra.7':
/home/kisskb/slave/src/include/linux/mtd/cfi_endian.h:51:30: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized]
 #define _cfi_to_cpu(w, s, x) (cfi_host(s)?(x):_swap_to_cpu(w, s, x))
                              ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c:37:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:413:11: note: 'r.x[0]' was declared here
  map_word r;
           ^
In file included from /home/kisskb/slave/src/include/linux/mtd/cfi.h:29:0,
                 from /home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c:39:
/home/kisskb/slave/src/include/linux/mtd/cfi_endian.h:51:30: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized]
 #define _cfi_to_cpu(w, s, x) (cfi_host(s)?(x):_swap_to_cpu(w, s, x))
                              ^
In file included from /home/kisskb/slave/src/drivers/mtd/chips/cfi_cmdset_0002.c:37:0:
/home/kisskb/slave/src/include/linux/mtd/map.h:413:11: note: 'r.x[0]' was declared here
  map_word r;
           ^
  LD      drivers/sh/built-in.o
  CC      net/sched/sch_blackhole.o
  CC      fs/ext4/readpage.o
  CC      net/sched/cls_api.o
  CC      lib/cmdline.o
  CC      drivers/scsi/scsi_sysctl.o
  CC      fs/ext4/sysfs.o
  LD      drivers/mtd/chips/built-in.o
  LD      drivers/mtd/built-in.o
  CC      lib/zlib_deflate/deflate_syms.o
  CC      lib/ctype.o
  CC      lib/dec_and_lock.o
  CC      lib/decompress.o
  CC      lib/dma-noop.o
  CC      lib/dump_stack.o
  CC      net/core/link_watch.o
  CC      lib/earlycpio.o
  CC      net/core/filter.o
  CC      lib/extable.o
  CC      lib/flex_proportions.o
In file included from /home/kisskb/slave/src/fs/ext4/inline.c:17:0:
/home/kisskb/slave/src/fs/ext4/ext4_jbd2.h: In function 'ext4_inode_journal_mode':
/home/kisskb/slave/src/fs/ext4/ext4_jbd2.h:428:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      lib/idr.o
/home/kisskb/slave/src/net/xfrm/xfrm_policy.c: In function 'xfrm_resolve_and_create_bundle':
/home/kisskb/slave/src/net/xfrm/xfrm_policy.c:1631:7: warning: 'dst_ops' may be used uninitialized in this function [-Wmaybe-uninitialized]
  xdst = dst_alloc(dst_ops, NULL, 0, DST_OBSOLETE_NONE, 0);
       ^
/home/kisskb/slave/src/net/xfrm/xfrm_policy.c:1613:18: note: 'dst_ops' was declared here
  struct dst_ops *dst_ops;
                  ^
  CC      lib/int_sqrt.o
  CC      lib/zlib_inflate/infutil.o
  CC      drivers/scsi/scsi_proc.o
  CC      lib/ioremap.o
  CC      net/core/sock_diag.o
  LD      lib/zlib_deflate/zlib_deflate.o
  CC      lib/irq_regs.o
  CC      lib/is_single_threaded.o
  CC      lib/klist.o
  LD      lib/zlib_deflate/built-in.o
  CC      lib/kobject.o
  CC      drivers/scsi/scsi_trace.o
  CC      lib/kobject_uevent.o
  CC      drivers/scsi/scsi_logging.o
  CC      lib/md5.o
  CC      drivers/scsi/sd.o
  CC      lib/nmi_backtrace.o
  CC      drivers/tty/tty_buffer.o
  CC      lib/nodemask.o
  CC      net/core/dev_ioctl.o
  CC      net/xfrm/xfrm_state.o
  CC      net/ipv4/fib_semantics.o
  CC      drivers/hid/usbhid/hid-quirks.o
  CC      net/sched/sch_fifo.o
  CC      net/sched/sch_cbq.o
  CC      net/core/tso.o
  CC      lib/plist.o
  CC      net/sched/sch_htb.o
  CC      lib/radix-tree.o
  CC      lib/zlib_inflate/inftrees.o
  CC      net/ipv4/fib_trie.o
  CC      lib/ratelimit.o
  CC      lib/rbtree.o
  CC      net/sched/sch_hfsc.o
  CC      drivers/tty/tty_port.o
  CC      lib/seq_buf.o
  CC      lib/sha1.o
  CC      net/sched/sch_red.o
  CC      lib/show_mem.o
  CC      lib/zlib_inflate/inflate_syms.o
/home/kisskb/slave/src/net/core/neighbour.c: In function 'neigh_sysctl_register':
/home/kisskb/slave/src/net/core/neighbour.c:3184:2: warning: 'p_name' may be used uninitialized in this function [-Wmaybe-uninitialized]
  snprintf(neigh_path, sizeof(neigh_path), "net/%s/neigh/%s",
  ^
  CC      lib/string.o
  CC      lib/timerqueue.o
  CC      lib/vsprintf.o
  CC      lib/win_minmax.o
  GEN     lib/crc32table.h
  CC      lib/crc32.o
  CC      net/sched/sch_gred.o
  CC      net/core/sock_reuseport.o
/home/kisskb/slave/src/drivers/scsi/sd.c: In function 'sd_init_command':
/home/kisskb/slave/src/drivers/scsi/sd.c:1155:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      net/sched/sch_dsmark.o
  CC      net/ipv4/inet_fragment.o
  CC      net/sched/sch_sfq.o
  CC      net/ipv4/ping.o
  LD      drivers/hid/usbhid/usbhid.o
  LD      drivers/hid/usbhid/built-in.o
  CC      net/sched/sch_tbf.o
  LD      drivers/hid/built-in.o
  CC      net/sched/sch_teql.o
  CC      net/ipv4/sysctl_net_ipv4.o
  CC      net/ipv4/gre_offload.o
  CC      net/ipv4/ip_tunnel_core.o
  CC      drivers/tty/tty_mutex.o
  LD      fs/ext4/ext4.o
  LD      lib/zlib_inflate/zlib_inflate.o
  LD      lib/zlib_inflate/built-in.o
  CC      net/ipv4/proc.o
  CC      net/ipv4/fib_rules.o
  CC      drivers/tty/tty_ldsem.o
  LD      fs/ext4/built-in.o
  CC      net/core/flow.o
  LD      drivers/scsi/scsi_mod.o
  CC      net/ipv4/ipmr.o
  CC      net/core/net-sysfs.o
  CC      net/ipv4/syncookies.o
  CC      net/core/net-procfs.o
/home/kisskb/slave/src/net/xfrm/xfrm_policy.c: In function 'xfrm_bundle_lookup':
/home/kisskb/slave/src/net/xfrm/xfrm_policy.c:1631:7: warning: 'dst_ops' may be used uninitialized in this function [-Wmaybe-uninitialized]
  xdst = dst_alloc(dst_ops, NULL, 0, DST_OBSOLETE_NONE, 0);
       ^
/home/kisskb/slave/src/net/xfrm/xfrm_policy.c:1613:18: note: 'dst_ops' was declared here
  struct dst_ops *dst_ops;
                  ^
  LD      fs/built-in.o
  CC      net/core/fib_rules.o
  CC      net/sched/sch_prio.o
  CC      drivers/tty/pty.o
  CC      drivers/usb/core/urb.o
  LD      drivers/usb/host/built-in.o
  LD      drivers/usb/misc/built-in.o
  CC      net/ipv4/ah4.o
  LD      drivers/tty/ipwireless/built-in.o
  CC      drivers/usb/core/message.o
  CC      drivers/tty/serial/serial_core.o
  CC      net/ipv4/esp4.o
  CC      drivers/usb/mon/mon_main.o
  CC      net/ipv4/ipcomp.o
  CC      net/xfrm/xfrm_hash.o
  CC      net/ipv4/xfrm4_tunnel.o
  CC      drivers/tty/vt/vt_ioctl.o
  CC      drivers/usb/core/driver.o
  CC      net/sched/sch_netem.o
  CC      drivers/usb/core/config.o
  CC      net/ipv4/xfrm4_mode_beet.o
  CC      drivers/usb/core/file.o
  CC      net/ipv4/tunnel4.o
  CC      net/ipv4/xfrm4_mode_transport.o
  CC      net/sched/cls_fw.o
  CC      net/sched/cls_route.o
/home/kisskb/slave/src/net/ipv4/ping.c: In function 'ping_err':
/home/kisskb/slave/src/net/ipv4/ping.c:556:37: warning: 'code' may be used uninitialized in this function [-Wmaybe-uninitialized]
     harderr = icmp_err_convert[code].fatal;
                                     ^
/home/kisskb/slave/src/net/ipv4/ping.c:529:3: warning: 'type' may be used uninitialized in this function [-Wmaybe-uninitialized]
   switch (type) {
   ^
/home/kisskb/slave/src/net/ipv4/ping.c:510:48: warning: 'icmph' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if (!ping_supported(family, icmph->type, icmph->code))
                                                ^
  CC      net/sched/cls_tcindex.o
/home/kisskb/slave/src/net/ipv4/ping.c: In function 'ping_common_sendmsg':
/home/kisskb/slave/src/net/ipv4/ping.c:474:37: warning: 'type' may be used uninitialized in this function [-Wmaybe-uninitialized]
         (family == AF_INET6 && type == ICMPV6_ECHO_REQUEST && code == 0);
                                     ^
/home/kisskb/slave/src/net/ipv4/ping.c:655:5: note: 'type' was declared here
  u8 type, code;
     ^
/home/kisskb/slave/src/net/ipv4/ping.c:473:63: warning: 'code' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return (family == AF_INET && type == ICMP_ECHO && code == 0) ||
                                                               ^
/home/kisskb/slave/src/net/ipv4/ping.c:655:11: note: 'code' was declared here
  u8 type, code;
           ^
  CC      net/ipv4/xfrm4_mode_tunnel.o
  CC      net/ipv4/ipconfig.o
  CC      net/ipv4/tcp_cubic.o
  CC      drivers/usb/core/buffer.o
  LD      drivers/usb/phy/built-in.o
  CC      net/xfrm/xfrm_input.o
  CC      net/xfrm/xfrm_output.o
  CC      net/ipv4/xfrm4_policy.o
  CC      net/ipv4/xfrm4_state.o
  CC      net/xfrm/xfrm_sysctl.o
  CC      net/ipv4/xfrm4_input.o
  CC      net/ipv4/xfrm4_output.o
  CC      net/ipv4/xfrm4_protocol.o
  CC      drivers/tty/vt/vc_screen.o
  CC      net/xfrm/xfrm_replay.o
  CC      net/xfrm/xfrm_algo.o
  CC      drivers/usb/storage/scsiglue.o
  CC      drivers/usb/storage/protocol.o
  CC      net/xfrm/xfrm_ipcomp.o
  CC      drivers/usb/mon/mon_stat.o
  CC      drivers/usb/mon/mon_text.o
  CC      drivers/usb/core/sysfs.o
/home/kisskb/slave/src/net/ipv4/esp4.c: In function 'esp4_get_mtu':
/home/kisskb/slave/src/net/ipv4/esp4.c:506:15: warning: 'net_adj' may be used uninitialized in this function [-Wmaybe-uninitialized]
  unsigned int net_adj;
               ^
  CC      drivers/usb/mon/mon_bin.o
  CC      drivers/usb/core/endpoint.o
  CC      drivers/usb/core/devio.o
  CC      drivers/usb/storage/transport.o
  CC      drivers/usb/core/notify.o
  CC      drivers/usb/storage/usb.o
  CC      drivers/usb/core/generic.o
  CC      drivers/usb/core/quirks.o
  CC      drivers/usb/core/devices.o
  CC      drivers/tty/serial/sh-sci.o
  CC      drivers/usb/core/port.o
  LD      net/core/built-in.o
  CC      drivers/usb/storage/initializers.o
  CC      drivers/tty/vt/selection.o
  CC      drivers/usb/storage/sierra_ms.o
  CC      drivers/tty/vt/keyboard.o
  CC      drivers/usb/storage/option_ms.o
  CC      drivers/tty/vt/consolemap.o
  CC      drivers/usb/storage/usual-tables.o
  CONMK   drivers/tty/vt/consolemap_deftbl.c
  CC      drivers/tty/vt/vt.o
  SHIPPED drivers/tty/vt/defkeymap.c
  CC      drivers/tty/vt/consolemap_deftbl.o
  CC      drivers/tty/vt/defkeymap.o
  LD      drivers/scsi/sd_mod.o
  LD      drivers/scsi/built-in.o
  LD      net/sched/built-in.o
  AR      lib/lib.a
  EXPORTS lib/lib-ksyms.o
  LD      lib/built-in.o
  LD      net/xfrm/built-in.o
  LD      net/ipv4/built-in.o
  LD      net/built-in.o
  LD      drivers/usb/storage/usb-storage.o
  LD      drivers/usb/storage/built-in.o
  LD      drivers/usb/mon/usbmon.o
  LD      drivers/usb/mon/built-in.o
  LD      drivers/tty/serial/built-in.o
  LD      drivers/usb/core/usbcore.o
  LD      drivers/usb/core/built-in.o
  LD      drivers/usb/built-in.o
  LD      drivers/tty/vt/built-in.o
  LD      drivers/tty/built-in.o
  LD      drivers/built-in.o
  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
  AS      arch/sh/boot/compressed/head_32.o
  CC      arch/sh/boot/compressed/misc.o
  CC      arch/sh/boot/compressed/cache.o
  OBJCOPY arch/sh/boot/compressed/vmlinux.bin
  SHIPPED arch/sh/boot/compressed/ashiftrt.S
  SHIPPED arch/sh/boot/compressed/lshrsi3.S
  SHIPPED arch/sh/boot/compressed/ashldi3.c
  SHIPPED arch/sh/boot/compressed/ashrsi3.S
  SHIPPED arch/sh/boot/compressed/ashlsi3.S
  CC      arch/sh/boot/compressed/ashldi3.o
  AS      arch/sh/boot/compressed/lshrsi3.o
  AS      arch/sh/boot/compressed/ashiftrt.o
  AS      arch/sh/boot/compressed/ashrsi3.o
  AS      arch/sh/boot/compressed/ashlsi3.o
  GZIP    arch/sh/boot/compressed/vmlinux.bin.gz
  Building modules, stage 2.
  MODPOST 1 modules
  CC      drivers/input/ff-memless.mod.o
  LD [M]  drivers/input/ff-memless.ko
  LD      arch/sh/boot/compressed/piggy.o
  LD      arch/sh/boot/compressed/vmlinux
  OBJCOPY arch/sh/boot/zImage
  Kernel: arch/sh/boot/zImage is ready
make[1]: Leaving directory '/home/kisskb/slave/build/linus_se7721_defconfig_sh4'
Completed OK
# rm -rf /home/kisskb/slave/build/linus_se7721_defconfig_sh4
# Build took: 0:00:45.606559