# git rev-parse -q --verify ea07b862ac8ef9b8c8358517d2e39f847dda6659^{commit}
ea07b862ac8ef9b8c8358517d2e39f847dda6659
already have revision, skipping fetch
# git checkout -q -f -B kisskb ea07b862ac8ef9b8c8358517d2e39f847dda6659
# git clean -qxdf
# git log -1
commit ea07b862ac8ef9b8c8358517d2e39f847dda6659
Author: Johannes Weiner <hannes@cmpxchg.org>
Date:   Fri Jan 6 19:21:43 2017 -0500

    mm: workingset: fix use-after-free in shadow node shrinker
    
    Several people report seeing warnings about inconsistent radix tree
    nodes followed by crashes in the workingset code, which all looked like
    use-after-free access from the shadow node shrinker.
    
    Dave Jones managed to reproduce the issue with a debug patch applied,
    which confirmed that the radix tree shrinking indeed frees shadow nodes
    while they are still linked to the shadow LRU:
    
      WARNING: CPU: 2 PID: 53 at lib/radix-tree.c:643 delete_node+0x1e4/0x200
      CPU: 2 PID: 53 Comm: kswapd0 Not tainted 4.10.0-rc2-think+ #3
      Call Trace:
         delete_node+0x1e4/0x200
         __radix_tree_delete_node+0xd/0x10
         shadow_lru_isolate+0xe6/0x220
         __list_lru_walk_one.isra.4+0x9b/0x190
         list_lru_walk_one+0x23/0x30
         scan_shadow_nodes+0x2e/0x40
         shrink_slab.part.44+0x23d/0x5d0
         shrink_node+0x22c/0x330
         kswapd+0x392/0x8f0
    
    This is the WARN_ON_ONCE(!list_empty(&node->private_list)) placed in the
    inlined radix_tree_shrink().
    
    The problem is with 14b468791fa9 ("mm: workingset: move shadow entry
    tracking to radix tree exceptional tracking"), which passes an update
    callback into the radix tree to link and unlink shadow leaf nodes when
    tree entries change, but forgot to pass the callback when reclaiming a
    shadow node.
    
    While the reclaimed shadow node itself is unlinked by the shrinker, its
    deletion from the tree can cause the left-most leaf node in the tree to
    be shrunk.  If that happens to be a shadow node as well, we don't unlink
    it from the LRU as we should.
    
    Consider this tree, where the s are shadow entries:
    
           root->rnode
                |
           [0       n]
            |       |
         [s    ] [sssss]
    
    Now the shadow node shrinker reclaims the rightmost leaf node through
    the shadow node LRU:
    
           root->rnode
                |
           [0        ]
            |
        [s     ]
    
    Because the parent of the deleted node is the first level below the
    root and has only one child in the left-most slot, the intermediate
    level is shrunk and the node containing the single shadow is put in
    its place:
    
           root->rnode
                |
           [s        ]
    
    The shrinker again sees a single left-most slot in a first level node
    and thus decides to store the shadow in root->rnode directly and free
    the node - which is a leaf node on the shadow node LRU.
    
      root->rnode
           |
           s
    
    Without the update callback, the freed node remains on the shadow LRU,
    where it causes later shrinker runs to crash.
    
    Pass the node updater callback into __radix_tree_delete_node() in case
    the deletion causes the left-most branch in the tree to collapse too.
    
    Also add warnings when linked nodes are freed right away, rather than
    wait for the use-after-free when the list is scanned much later.
    
    Fixes: 14b468791fa9 ("mm: workingset: move shadow entry tracking to radix tree exceptional tracking")
    Reported-by: Dave Chinner <david@fromorbit.com>
    Reported-by: Hugh Dickins <hughd@google.com>
    Reported-by: Andrea Arcangeli <aarcange@redhat.com>
    Reported-and-tested-by: Dave Jones <davej@codemonkey.org.uk>
    Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
    Cc: Christoph Hellwig <hch@lst.de>
    Cc: Chris Leech <cleech@redhat.com>
    Cc: Lee Duncan <lduncan@suse.com>
    Cc: Jan Kara <jack@suse.cz>
    Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
    Cc: Matthew Wilcox <mawilcox@linuxonhyperv.com>
    Cc: Andrew Morton <akpm@linux-foundation.org>
    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 ea07b862ac8ef9b8c8358517d2e39f847dda6659
# < make -j 48 ARCH=sh O=/home/kisskb/slave/build/linus_urquell_defconfig_sh4 CROSS_COMPILE=/opt/cross/kisskb/br-sh4-full-2016.08-613-ge98b4dd/bin/sh4-linux-  urquell_defconfig
# make -j 48 ARCH=sh O=/home/kisskb/slave/build/linus_urquell_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_urquell_defconfig_sh4'
  GEN     ./Makefile
scripts/kconfig/conf  --silentoldconfig Kconfig
  CHK     include/config/kernel.release
  GEN     ./Makefile
  WRAP    arch/sh/include/generated/asm/bitsperlong.h
  WRAP    arch/sh/include/generated/asm/cputime.h
  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/emergency-restart.h
  WRAP    arch/sh/include/generated/asm/div64.h
  WRAP    arch/sh/include/generated/asm/errno.h
  WRAP    arch/sh/include/generated/asm/exec.h
  WRAP    arch/sh/include/generated/asm/fcntl.h
  WRAP    arch/sh/include/generated/asm/ioctl.h
  WRAP    arch/sh/include/generated/asm/ipcbuf.h
  WRAP    arch/sh/include/generated/asm/irq_regs.h
  WRAP    arch/sh/include/generated/asm/irq_work.h
  WRAP    arch/sh/include/generated/asm/kvm_para.h
  WRAP    arch/sh/include/generated/asm/local.h
  WRAP    arch/sh/include/generated/asm/local64.h
  WRAP    arch/sh/include/generated/asm/mcs_spinlock.h
  WRAP    arch/sh/include/generated/asm/mm-arch-hooks.h
  WRAP    arch/sh/include/generated/asm/mman.h
  WRAP    arch/sh/include/generated/asm/msgbuf.h
  WRAP    arch/sh/include/generated/asm/param.h
  WRAP    arch/sh/include/generated/asm/parport.h
  WRAP    arch/sh/include/generated/asm/percpu.h
  WRAP    arch/sh/include/generated/asm/poll.h
  WRAP    arch/sh/include/generated/asm/preempt.h
  WRAP    arch/sh/include/generated/asm/resource.h
  WRAP    arch/sh/include/generated/asm/rwsem.h
  WRAP    arch/sh/include/generated/asm/sembuf.h
  WRAP    arch/sh/include/generated/asm/serial.h
  WRAP    arch/sh/include/generated/asm/shmbuf.h
  WRAP    arch/sh/include/generated/asm/siginfo.h
  WRAP    arch/sh/include/generated/asm/sizes.h
  WRAP    arch/sh/include/generated/asm/socket.h
  WRAP    arch/sh/include/generated/asm/statfs.h
  WRAP    arch/sh/include/generated/asm/termbits.h
  WRAP    arch/sh/include/generated/asm/termios.h
  WRAP    arch/sh/include/generated/asm/trace_clock.h
  WRAP    arch/sh/include/generated/asm/ucontext.h
  WRAP    arch/sh/include/generated/asm/xor.h
  CHK     include/generated/uapi/linux/version.h
  UPD     include/generated/uapi/linux/version.h
  HOSTCC  scripts/basic/bin2c
  UPD     include/config/kernel.release
  Using /home/kisskb/slave/src as source for kernel
  CHK     include/generated/utsrelease.h
  UPD     include/generated/utsrelease.h
  HOSTCC  scripts/kallsyms
  HOSTCC  scripts/pnmtologo
  HOSTCC  scripts/conmakehash
  CC      scripts/mod/empty.o
  HOSTCC  scripts/mod/mk_elfconfig
  CC      scripts/mod/devicetable-offsets.s
  GEN     scripts/mod/devicetable-offsets.h
  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/do_mounts_rd.o
  CC      init/do_mounts_initrd.o
  CC      init/initramfs.o
  CC      init/init_task.o
  UPD     include/generated/compile.h
  HOSTCC  usr/gen_init_cpio
  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_32.o
  CC      arch/sh/kernel/irq.o
  CC      arch/sh/kernel/machvec.o
  CC      arch/sh/kernel/nmi_debug.o
  CC      arch/sh/kernel/kdebugfs.o
  CC      arch/sh/kernel/process_32.o
  CC      arch/sh/kernel/process.o
  CC      arch/sh/kernel/ptrace_32.o
  CC      arch/sh/kernel/reboot.o
  CC      arch/sh/kernel/setup.o
  CC      arch/sh/kernel/ptrace.o
  CC      arch/sh/kernel/sys_sh.o
  AS      arch/sh/kernel/syscalls_32.o
  CC      arch/sh/kernel/return_address.o
  CC      arch/sh/kernel/topology.o
  CC      arch/sh/kernel/signal_32.o
  CC      arch/sh/kernel/time.o
  CC      arch/sh/kernel/traps.o
  CC      arch/sh/kernel/traps_32.o
  CC      arch/sh/kernel/iomap.o
  CC      arch/sh/kernel/unwinder.o
  CC      arch/sh/kernel/ioport.o
  CC      arch/sh/kernel/sys_sh32.o
  CC      arch/sh/kernel/sh_ksyms_32.o
  AS      arch/sh/kernel/relocate_kernel.o
  CC      arch/sh/kernel/machine_kexec.o
  CC      arch/sh/kernel/module.o
  CC      arch/sh/kernel/perf_callchain.o
  LDS     arch/sh/kernel/vmlinux.lds
  AS      arch/sh/kernel/head_32.o
  CC      arch/sh/kernel/hw_breakpoint.o
  CC      arch/sh/kernel/perf_event.o
  CC      arch/sh/kernel/vsyscall/vsyscall.o
  CC      arch/sh/boards/board-urquell.o
  LDS     arch/sh/kernel/vsyscall/vsyscall.lds
  AS      arch/sh/kernel/vsyscall/vsyscall-trapa.o
  AS      arch/sh/kernel/vsyscall/vsyscall-note.o
  CC      arch/sh/kernel/cpu/irq/imask.o
  CC      arch/sh/mm/alignment.o
  CC      arch/sh/mm/cache.o
  CC      arch/sh/mm/init.o
  CC      arch/sh/kernel/cpu/sh4/probe.o
  AS      arch/sh/kernel/cpu/sh4/../sh3/entry.o
  CC      arch/sh/kernel/cpu/init.o
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh4/../sh3/../../entry-common.S: Assembler messages:
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh4/../sh3/../../entry-common.S:389: Warning: overflow in branch to syscall_exit_work; converted into longer instruction sequence
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh4/../sh3/../../entry-common.S:392: Warning: overflow in branch to syscall_exit_work; converted into longer instruction sequence
  CC      arch/sh/kernel/cpu/sh4a/setup-sh7786.o
  AS      arch/sh/kernel/cpu/sh4/../sh3/ex.o
  CC      arch/sh/kernel/cpu/sh4/fpu.o
  CC      arch/sh/kernel/cpu/sh4a/intc-shx3.o
  GEN     usr/initramfs_data.cpio.gz
  CC      arch/sh/kernel/cpu/sh4/softfloat.o
  CC      arch/sh/kernel/cpu/sh4/sq.o
  CC      arch/sh/kernel/cpu/sh4a/clock-sh7786.o
  CC      arch/sh/kernel/cpu/sh4a/pinmux-sh7786.o
  CC      arch/sh/kernel/cpu/sh4a/ubc.o
  CC      arch/sh/kernel/cpu/sh4a/perf_event.o
  LD      arch/sh/kernel/cpu/sh4/common.o
  CC      arch/sh/kernel/cpu/fpu.o
  CC      arch/sh/kernel/cpu/clock.o
  CC      arch/sh/kernel/cpu/pfc.o
  CC      arch/sh/kernel/cpu/proc.o
  CC      arch/sh/mm/consistent.o
  CC      arch/sh/mm/mmap.o
  CC      arch/sh/mm/cache-sh4.o
  LD      arch/sh/kernel/cpu/irq/built-in.o
  CC      arch/sh/mm/flush-sh4.o
  SYSCALL arch/sh/kernel/vsyscall/vsyscall-trapa.so
  CC      arch/sh/mm/cache-shx3.o
  SYSCALL arch/sh/kernel/vsyscall/vsyscall-syms.o
  CC      arch/sh/mm/extable_32.o
  CC      arch/sh/mm/gup.o
  AS      usr/initramfs_data.o
  CC      arch/sh/mm/fault.o
  CC      arch/sh/mm/kmap.o
  AS      arch/sh/kernel/vsyscall/vsyscall-syscall.o
  CC      arch/sh/mm/ioremap.o
  CC      arch/sh/mm/pgtable.o
  CC      arch/sh/mm/tlbex_32.o
  CC      arch/sh/mm/tlbflush_32.o
  CC      arch/sh/mm/tlb-pteaex.o
  CC      arch/sh/mm/tlb-urb.o
  LD      arch/sh/kernel/vsyscall/built-in.o
  LD      usr/built-in.o
  CC      arch/sh/mm/asids-debugfs.o
  LD      certs/built-in.o
  CC      arch/sh/mm/cache-debugfs.o
  CC      arch/sh/mm/hugetlbpage.o
  CC      arch/sh/mm/tlb-debugfs.o
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh4a/setup-sh7786.c:251:31: warning: 'tmu3_device' defined but not used [-Wunused-variable]
 static struct platform_device tmu3_device = {
                               ^
  CC      arch/sh/mm/ioremap_fixed.o
  CC      arch/sh/mm/uncached.o
  LD      arch/sh/boards/built-in.o
  CC      mm/filemap.o
  CC      mm/mempool.o
  CC      mm/oom_kill.o
  CC      mm/maccess.o
  CC      mm/backing-dev.o
  CC      mm/page-writeback.o
  CC      mm/readahead.o
  CC      mm/shmem.o
  CC      mm/swap.o
  CC      mm/page_alloc.o
  CC      kernel/fork.o
  CC      mm/truncate.o
  CC      mm/vmscan.o
  CC      mm/vmstat.o
  CC      mm/mmzone.o
  CC      mm/util.o
  CC      kernel/exec_domain.o
  CC      mm/mm_init.o
  CC      mm/mmu_context.o
  CC      mm/percpu.o
  CC      kernel/panic.o
  CC      mm/slab_common.o
  CC      kernel/cpu.o
  LD      arch/sh/kernel/cpu/sh4a/built-in.o
  CC      mm/compaction.o
  CC      kernel/exit.o
  CC      mm/vmacache.o
  CC      kernel/resource.o
  CC      kernel/softirq.o
  CC      mm/interval_tree.o
  CC      mm/list_lru.o
  CC      kernel/sysctl.o
  CC      kernel/sysctl_binary.o
  CC      mm/workingset.o
  CC      kernel/capability.o
  CC      kernel/ptrace.o
  CC      mm/debug.o
  CC      mm/gup.o
  CC      mm/highmem.o
  CC      kernel/user.o
  LD      init/mounts.o
  CC      ipc/util.o
  CC      ipc/msg.o
  CC      ipc/msgutil.o
  CC      mm/memory.o
  CC      mm/mincore.o
  LD      init/built-in.o
  CC      mm/mlock.o
  LD      arch/sh/kernel/cpu/sh4/built-in.o
  LD      arch/sh/mm/built-in.o
  LD      arch/sh/kernel/cpu/built-in.o
  CC      mm/mmap.o
  CC      kernel/signal.o
  LD      arch/sh/kernel/built-in.o
  CC      security/keys/gc.o
  CC      mm/mprotect.o
  CC      crypto/api.o
  CC      mm/mremap.o
  CC      kernel/sys.o
  CC      fs/open.o
  CC      mm/msync.o
  CC      kernel/kmod.o
  CC      kernel/workqueue.o
  CC      kernel/pid.o
  CC      mm/rmap.o
  CC      mm/vmalloc.o
  CC      mm/pagewalk.o
  CC      mm/pgtable-generic.o
  CC      mm/process_vm_access.o
  CC      mm/init-mm.o
  CC      mm/bootmem.o
  CC      ipc/sem.o
  CC      mm/fadvise.o
  CC      mm/madvise.o
  CC      mm/memblock.o
  CC      block/bio.o
  CC      mm/page_io.o
  CC      kernel/task_work.o
  CC      mm/swap_state.o
  CC      kernel/extable.o
  CC      kernel/params.o
  CC      ipc/shm.o
  CC      security/keys/key.o
  CC      mm/swapfile.o
  CC      ipc/syscall.o
  CC      mm/dmapool.o
  CC      mm/hugetlb.o
  CC      kernel/kthread.o
  CC      mm/sparse.o
  CC      mm/slab.o
  CC      kernel/sys_ni.o
  CC      mm/migrate.o
  CC      crypto/cipher.o
  CC      mm/quicklist.o
  CC      kernel/notifier.o
  CC      kernel/nsproxy.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      kernel/ksysfs.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      kernel/cred.o
  CC      crypto/compress.o
  CC      kernel/reboot.o
  CC      kernel/async.o
  CC      kernel/range.o
  CC      ipc/ipc_sysctl.o
  CC      kernel/smpboot.o
  CC      ipc/mqueue.o
  CC      kernel/ucount.o
  CC      ipc/namespace.o
  CC      kernel/groups.o
  CC      ipc/mq_sysctl.o
  CC      kernel/bpf/core.o
  CC      kernel/events/ring_buffer.o
  CC      kernel/events/core.o
  LD      kernel/livepatch/built-in.o
  CC      kernel/events/callchain.o
  CC      kernel/irq/irqdesc.o
  CC      security/keys/keyring.o
  CC      security/keys/keyctl.o
  CC      kernel/power/qos.o
  CC      kernel/printk/printk.o
  CC      kernel/locking/mutex.o
  CC      kernel/rcu/update.o
  CC      security/keys/permission.o
  CC      kernel/freezer.o
  CC      kernel/profile.o
  CC      kernel/printk/nmi.o
  CC      kernel/futex.o
  CC      kernel/up.o
  CC      kernel/power/main.o
  CC      crypto/memneq.o
  CC      kernel/sched/core.o
  CC      kernel/time/time.o
  CC      kernel/uid16.o
  CC      fs/read_write.o
  CC      crypto/crypto_wq.o
  CC      kernel/module.o
  CC      crypto/algapi.o
  CC      kernel/kallsyms.o
  CC      crypto/scatterwalk.o
  CC      kernel/acct.o
  CC      kernel/kexec_core.o
  CC      kernel/kexec.o
  CC      kernel/cgroup.o
/home/kisskb/slave/src/mm/hugetlb.c: In function '__vma_reservation_common':
/home/kisskb/slave/src/mm/hugetlb.c:1893:6: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (ret)
      ^
  CC      kernel/time/timer.o
  CC      kernel/cgroup_freezer.o
  CC      kernel/time/hrtimer.o
  CC      kernel/cpuset.o
  CC      kernel/utsname.o
  CC      crypto/proc.o
  CC      kernel/events/hw_breakpoint.o
  CC      security/keys/process_keys.o
  CC      kernel/rcu/sync.o
  CC      block/elevator.o
  CC      kernel/power/process.o
  CC      kernel/pid_namespace.o
  CC      kernel/locking/semaphore.o
  CC      kernel/locking/rwsem.o
  GZIP    kernel/config_data.gz
  CC      kernel/audit.o
  CC      crypto/aead.o
  CC      kernel/irq/handle.o
  CC      crypto/ablkcipher.o
  CC      security/keys/request_key.o
  CC      crypto/blkcipher.o
  CC      kernel/auditfilter.o
  CC      kernel/auditsc.o
  CC      kernel/audit_watch.o
  CC      kernel/audit_fsnotify.o
  CC      kernel/audit_tree.o
  CC      crypto/skcipher.o
  CC      kernel/hung_task.o
  CC      security/keys/request_key_auth.o
  CC      security/keys/user_defined.o
  CC      kernel/rcu/srcu.o
  CC      kernel/seccomp.o
  CC      kernel/locking/percpu-rwsem.o
  CC      security/keys/proc.o
  CC      kernel/locking/rtmutex.o
/home/kisskb/slave/src/kernel/sched/core.c: In function 'pick_next_task':
/home/kisskb/slave/src/kernel/sched/core.c:3293:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      security/keys/sysctl.o
  CC      kernel/time/timekeeping.o
  CC      kernel/locking/rwsem-spinlock.o
  LD      ipc/built-in.o
  CC      crypto/ahash.o
  CC      crypto/shash.o
  CC      kernel/irq/manage.o
  CC      kernel/utsname_sysctl.o
  CC      kernel/time/ntp.o
  CC      kernel/elfcore.o
/home/kisskb/slave/src/kernel/module.c: In function '__symbol_put':
/home/kisskb/slave/src/kernel/module.c:1039:2: warning: 'owner' may be used uninitialized in this function [-Wmaybe-uninitialized]
  module_put(owner);
  ^
  CC      kernel/irq_work.o
  CC      crypto/akcipher.o
  CC      kernel/membarrier.o
  CC      kernel/memremap.o
  CC      kernel/rcu/tiny.o
  CC      crypto/kpp.o
  LD      kernel/power/built-in.o
  CC      crypto/acompress.o
  CHK     kernel/config_data.h
  UPD     kernel/config_data.h
  CC      crypto/scompress.o
  CC      kernel/configs.o
  CC      crypto/algboss.o
  CC      crypto/hmac.o
  CC      crypto/testmgr.o
  CC      crypto/crypto_null.o
  CC      crypto/aes_generic.o
  LD      security/keys/built-in.o
  LD      sound/built-in.o
  LD      mm/built-in.o
  CC      security/commoncap.o
  CC      kernel/time/clocksource.o
  CC      fs/file_table.o
  CC      kernel/time/jiffies.o
  CC      fs/super.o
  CC      kernel/time/timer_list.o
  CC      fs/char_dev.o
  LD      kernel/locking/built-in.o
  CC      block/blk-core.o
  CC      block/blk-tag.o
  LD      firmware/built-in.o
  LD      kernel/bpf/built-in.o
  CC      security/min_addr.o
  CC      security/lsm_audit.o
  CC      crypto/crc32c_generic.o
  CC      security/device_cgroup.o
  CC      kernel/sched/loadavg.o
  CC      crypto/rng.o
  CC      kernel/sched/clock.o
  LD      drivers/amba/built-in.o
  CC      crypto/xor.o
  CC      fs/stat.o
  LD      kernel/rcu/built-in.o
  LD      arch/sh/drivers/dma/built-in.o
  CC      arch/sh/drivers/heartbeat.o
  CC      drivers/ata/libata-core.o
  CC      drivers/ata/libata-scsi.o
  CC      arch/sh/drivers/pci/common.o
  CC [M]  crypto/echainiv.o
  CC [M]  crypto/sha256_generic.o
  CC [M]  crypto/drbg.o
  CC [M]  crypto/jitterentropy.o
  CC [M]  crypto/jitterentropy-kcapi.o
  CC      kernel/time/timeconv.o
  CC      kernel/time/timecounter.o
  CC      arch/sh/drivers/pci/pci.o
  LD      crypto/crypto.o
  LD      crypto/crypto_algapi.o
  LD      crypto/crypto_hash.o
  LD      crypto/crypto_acompress.o
  LD      kernel/printk/built-in.o
  CC      kernel/sched/cputime.o
  CC      arch/sh/drivers/pci/pcie-sh7786.o
  CC      net/socket.o
  CC      fs/exec.o
  CC      fs/pipe.o
  LD      net/802/built-in.o
  LD      crypto/cryptomgr.o
  CC      kernel/time/alarmtimer.o
  CC      kernel/time/posix-timers.o
  CC      net/dns_resolver/dns_key.o
  CC      net/ethernet/eth.o
  CC      kernel/sched/idle_task.o
  CC      fs/namei.o
  CC      kernel/sched/fair.o
  CC      kernel/time/posix-cpu-timers.o
  CC      fs/fcntl.o
  CC      kernel/sched/rt.o
  CC      kernel/time/posix-clock.o
  LD      crypto/crypto_blkcipher.o
  CC      drivers/ata/libata-eh.o
  CC      drivers/ata/libata-transport.o
  CC      kernel/irq/spurious.o
  CC      net/core/sock.o
  CC      net/core/request_sock.o
  CC      arch/sh/drivers/pci/ops-sh7786.o
  CC      kernel/time/itimer.o
  CC      block/blk-sysfs.o
  CC      fs/ioctl.o
  AS      arch/sh/lib/movmem.o
  LD      drivers/auxdisplay/built-in.o
  CC      net/ipv4/route.o
  CC      kernel/sched/deadline.o
  CC      arch/sh/lib/ashldi3.o
  CC      drivers/block/brd.o
  CC      fs/readdir.o
  CC      net/core/skbuff.o
  CC      fs/select.o
  CC      net/core/datagram.o
  LD [M]  crypto/jitterentropy_rng.o
  CC      net/core/stream.o
  CC      fs/dcache.o
  CC      drivers/base/component.o
  CC      kernel/irq/resend.o
  CC      kernel/sched/stop_task.o
  CC      kernel/sched/wait.o
  CC      kernel/irq/chip.o
  CC      kernel/time/clockevents.o
  CC      net/dns_resolver/dns_query.o
  LD      security/built-in.o
  CC      fs/inode.o
  CC      kernel/irq/dummychip.o
  LD      arch/sh/drivers/pci/built-in.o
  CC      arch/sh/lib/ashrdi3.o
  LD      arch/sh/drivers/built-in.o
  LD      crypto/built-in.o
  CC      kernel/time/tick-common.o
  CC      kernel/time/sched_clock.o
  CC      arch/sh/lib/lshrdi3.o
  CC      kernel/time/tick-oneshot.o
  CC      kernel/irq/devres.o
  CC      kernel/sched/swait.o
  LD      virt/lib/built-in.o
  CC      net/core/scm.o
  CC      fs/attr.o
  LD      virt/built-in.o
  CC      kernel/sched/completion.o
  LD      net/ethernet/built-in.o
  CC      fs/bad_inode.o
  CC      kernel/sched/idle.o
  AS      arch/sh/lib/ashrsi3.o
  AS      arch/sh/lib/ashlsi3.o
  CC      net/ipv6/addrconf_core.o
  LD      net/dns_resolver/dns_resolver.o
  CC      kernel/time/tick-sched.o
  CC      kernel/time/timekeeping_debug.o
  CC      fs/file.o
  LD      net/dns_resolver/built-in.o
  CC      kernel/sched/debug.o
  CC      kernel/sched/cpuacct.o
  CC      fs/filesystems.o
  CC      drivers/base/core.o
  CC      kernel/irq/irqdomain.o
  LD      drivers/block/built-in.o
  AS      arch/sh/lib/ashiftrt.o
  AS      arch/sh/lib/lshrsi3.o
  CC      fs/namespace.o
  AS      arch/sh/lib/udiv_qrnnd.o
  CC      arch/sh/lib/io.o
  CC      net/netlink/af_netlink.o
  LD      drivers/bus/built-in.o
  CC      drivers/ata/libata-trace.o
  CC      fs/seq_file.o
  CC      lib/lockref.o
  AS      arch/sh/lib/__clear_user.o
  CC      block/blk-flush.o
  AS      arch/sh/lib/checksum.o
  AS      arch/sh/lib/copy_page.o
  LD      drivers/cdrom/built-in.o
  CC      arch/sh/lib/delay.o
  CC      arch/sh/lib/div64-generic.o
  AS      arch/sh/lib/div64.o
  AS      arch/sh/lib/memchr.o
  CC      block/blk-settings.o
  CC      block/blk-ioc.o
  CC      drivers/char/mem.o
  CC      lib/bcd.o
  CC      kernel/irq/proc.o
  CC      block/blk-map.o
  AS      arch/sh/lib/memcpy-sh4.o
  AS      arch/sh/lib/memmove.o
  AS      arch/sh/lib/memset-sh4.o
  AS      arch/sh/lib/strlen.o
  CC      fs/xattr.o
  CC      fs/libfs.o
  CC      fs/fs-writeback.o
  CC      net/ipv4/inetpeer.o
  CC      block/blk-exec.o
  CC      lib/div64.o
  AS      arch/sh/lib/udivsi3.o
  CC      net/core/gen_stats.o
  AS      arch/sh/lib/udivsi3_i4i.o
  CC      net/ipv4/protocol.o
  CC      net/core/gen_estimator.o
  CC      net/ipv4/ip_input.o
  LD      kernel/time/built-in.o
  CC      net/core/net_namespace.o
  CC      net/ipv4/ip_fragment.o
  CC      net/ipv4/ip_forward.o
  CC      drivers/base/bus.o
  AR      arch/sh/lib/lib.a
  CC      fs/pnode.o
  EXPORTS arch/sh/lib/lib-ksyms.o
  CC      net/core/secure_seq.o
  LD      arch/sh/lib/built-in.o
  CC      fs/splice.o
  CC      net/core/flow_dissector.o
  CC      fs/sync.o
  CC      net/core/sysctl_net_core.o
  CC      net/ipv6/exthdrs_core.o
  CC      fs/utimes.o
  CC      drivers/ata/libata-sff.o
  CC      net/core/dev.o
  CC      block/blk-merge.o
  LD      kernel/irq/built-in.o
  CC      net/core/ethtool.o
  CC      fs/stack.o
  CC      fs/fs_struct.o
  CC      block/blk-softirq.o
  CC      fs/statfs.o
  CC      lib/sort.o
  CC      net/packet/af_packet.o
  CC      block/blk-timeout.o
  CC      block/blk-lib.o
  CC      net/ipv4/ip_options.o
  CC      fs/fs_pin.o
  CC      lib/parser.o
  CC      drivers/ata/libata-pmp.o
  CC      drivers/char/random.o
  CC      net/core/dev_addr_lists.o
  CC      fs/nsfs.o
  CC      fs/buffer.o
  CC      fs/block_dev.o
  CC      block/blk-mq.o
  LD      kernel/sched/built-in.o
  CC      fs/direct-io.o
  CC      net/core/dst.o
  CC      fs/mpage.o
  CC      fs/proc_namespace.o
  CC      net/ipv4/ip_output.o
  CC      drivers/base/dd.o
  CC      net/ipv4/ip_sockglue.o
  CC      net/core/netevent.o
/home/kisskb/slave/src/net/core/ethtool.c: In function 'ethtool_get_feature_mask':
/home/kisskb/slave/src/net/core/ethtool.c:311:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      lib/halfmd4.o
  CC      fs/configfs/inode.o
  CC      fs/debugfs/inode.o
  CC      fs/devpts/inode.o
  CC      lib/debug_locks.o
  CC      block/blk-mq-tag.o
  CC      block/blk-stat.o
  CC      net/ipv6/ip6_checksum.o
  CC      net/core/neighbour.o
  LD      kernel/events/built-in.o
  CC      lib/random32.o
  LD      kernel/built-in.o
  CC      net/ipv4/inet_hashtables.o
  CC      net/ipv4/inet_timewait_sock.o
  CC      net/core/rtnetlink.o
  LD      fs/exofs/built-in.o
  CC      fs/exportfs/expfs.o
  CC      net/ipv4/inet_connection_sock.o
  CC      fs/btrfs/super.o
  CC      fs/ext2/balloc.o
  CC      drivers/ata/sata_sil24.o
  CC      block/blk-mq-sysfs.o
  CC      drivers/base/syscore.o
  CC      block/blk-mq-cpumap.o
  CC      block/ioctl.o
  CC      fs/ext4/balloc.o
  CC      net/core/utils.o
  CC      fs/hugetlbfs/inode.o
  CC      fs/fat/cache.o
  CC      lib/bust_spinlocks.o
  CC      fs/jbd2/transaction.o
  CC      net/core/link_watch.o
  CC      drivers/base/driver.o
  CC      fs/configfs/file.o
  CC      fs/kernfs/mount.o
  LD      fs/exportfs/exportfs.o
  LD      fs/exportfs/built-in.o
  LD      fs/devpts/devpts.o
  LD      fs/devpts/built-in.o
  CC      drivers/char/misc.o
  CC      net/core/filter.o
  CC      fs/nfs_common/grace.o
  CC      net/core/sock_diag.o
  CC      block/genhd.o
  CC      net/ipv4/tcp.o
  CC      fs/debugfs/file.o
  CC      net/netlink/genetlink.o
  CC      fs/lockd/clntlock.o
  CC      drivers/base/class.o
  CC      block/scsi_ioctl.o
  CC      block/partition-generic.o
  CC      net/core/dev_ioctl.o
  CC      block/ioprio.o
  CC      net/ipv4/tcp_input.o
  CC      net/ipv6/ip6_icmp.o
  CC      fs/nls/nls_base.o
  CC      block/badblocks.o
  CC      lib/kasprintf.o
  LD      drivers/char/agp/built-in.o
  CC      drivers/char/hw_random/core.o
  CC      fs/nfs/client.o
  CC      fs/fat/dir.o
  LD      drivers/ata/libata.o
  CC      fs/ext2/dir.o
  CC      drivers/base/platform.o
  CC      fs/fat/fatent.o
  CC      fs/configfs/dir.o
  CC      fs/kernfs/inode.o
  CC      lib/bitmap.o
  CC      block/partitions/check.o
  LD      drivers/ata/built-in.o
  CC      fs/notify/fsnotify.o
  LD      fs/nfs_common/built-in.o
  CC      net/core/tso.o
  CC      fs/nls/nls_cp437.o
  LD      drivers/char/ipmi/built-in.o
  CC      net/ipv4/tcp_output.o
  CC      net/core/sock_reuseport.o
  CC      block/noop-iosched.o
  CC      drivers/clk/clk-devres.o
  CC      drivers/base/cpu.o
  LD      drivers/char/hw_random/rng-core.o
/home/kisskb/slave/src/net/core/neighbour.c: In function 'neigh_sysctl_register':
/home/kisskb/slave/src/net/core/neighbour.c:3180:2: warning: 'p_name' may be used uninitialized in this function [-Wmaybe-uninitialized]
  snprintf(neigh_path, sizeof(neigh_path), "net/%s/neigh/%s",
  ^
  LD      drivers/char/hw_random/built-in.o
  CC      net/core/flow.o
  LD      drivers/char/built-in.o
  CC      fs/ntfs/aops.o
  CC      net/ipv4/tcp_timer.o
  CC      fs/ext4/bitmap.o
  CC      drivers/clocksource/sh_tmu.o
  CC      net/ipv4/tcp_ipv4.o
  LD      fs/debugfs/debugfs.o
  CC      net/core/net-sysfs.o
  LD      fs/debugfs/built-in.o
  CC      block/deadline-iosched.o
  CC      net/ipv6/output_core.o
  CC      net/ipv4/tcp_minisocks.o
  LD      fs/hugetlbfs/hugetlbfs.o
  CC      block/cfq-iosched.o
  CC      net/core/net-procfs.o
  LD      fs/hugetlbfs/built-in.o
  CC      block/blk-mq-pci.o
  CC      fs/nls/nls_cp932.o
  LD      fs/quota/built-in.o
  CC      fs/nls/nls_euc-jp.o
  CC      fs/ramfs/inode.o
  CC      drivers/clk/clkdev.o
  CC      fs/jbd2/commit.o
  CC      fs/kernfs/dir.o
  CC      fs/notify/notification.o
  CC      fs/lockd/clntproc.o
  CC      block/partitions/msdos.o
  CC      block/partitions/efi.o
  CC      lib/scatterlist.o
  CC      lib/gcd.o
  CC      fs/fat/file.o
  CC      lib/lcm.o
/home/kisskb/slave/src/net/packet/af_packet.c: In function 'tpacket_rcv':
/home/kisskb/slave/src/net/packet/af_packet.c:2125:33: warning: 'hdrlen' may be used uninitialized in this function [-Wmaybe-uninitialized]
  unsigned short macoff, netoff, hdrlen;
                                 ^
  CC      fs/ext2/file.o
  CC      fs/proc/task_mmu.o
  CC      lib/list_sort.o
  CC      lib/uuid.o
  CC      fs/configfs/symlink.o
  CC      drivers/base/firmware.o
  LD      drivers/clocksource/built-in.o
  CC      drivers/base/init.o
/home/kisskb/slave/src/block/cfq-iosched.c: In function 'cfq_async_queue_prio':
/home/kisskb/slave/src/block/cfq-iosched.c:3828:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      fs/sysfs/file.o
  LD      net/netlink/built-in.o
  CC      fs/nls/nls_iso8859-1.o
  CC      drivers/cpuidle/cpuidle.o
  CC      fs/ext4/dir.o
  CC      lib/flex_array.o
  CC      net/sched/sch_generic.o
  CC      net/sched/sch_mq.o
  CC      lib/iov_iter.o
  CC      lib/clz_ctz.o
  CC      lib/bsearch.o
  CC      fs/ext4/file.o
  LD      drivers/clk/bcm/built-in.o
  CC      fs/notify/group.o
  CC      fs/btrfs/ctree.o
  LD      drivers/clk/mvebu/built-in.o
  CC      fs/ext4/fsync.o
  CC      fs/fat/inode.o
  CC      net/ipv6/protocol.o
  CC      lib/find_bit.o
  LD      drivers/clk/ti/built-in.o
  CC      lib/llist.o
  CC      fs/ramfs/file-mmu.o
  CC      lib/memweight.o
  LD      drivers/clk/built-in.o
  CC      lib/kfifo.o
  CC      fs/ext2/ialloc.o
  LD      drivers/crypto/built-in.o
  LD      net/packet/built-in.o
  CC      lib/percpu-refcount.o
  CC      lib/percpu_ida.o
  CC      drivers/base/map.o
  CC      fs/ntfs/attrib.o
  CC      lib/rhashtable.o
  LD      drivers/firewire/built-in.o
  CC      lib/reciprocal_div.o
  LD      fs/nls/built-in.o
  CC      drivers/base/devres.o
  CC      fs/eventpoll.o
  CC      fs/nfs/dir.o
  CC      lib/once.o
  LD      drivers/firmware/broadcom/built-in.o
  CC      lib/string_helpers.o
  CC      fs/anon_inodes.o
  CC      fs/configfs/mount.o
  LD      drivers/firmware/meson/built-in.o
  CC      net/sunrpc/clnt.o
  LD      fs/ramfs/ramfs.o
  LD      fs/ramfs/built-in.o
  LD      drivers/firmware/tegra/built-in.o
  CC      fs/signalfd.o
  CC      fs/sysfs/dir.o
  CC      fs/sysfs/symlink.o
  CC      net/ipv4/tcp_cong.o
  LD      drivers/firmware/built-in.o
  CC      fs/timerfd.o
  CC      lib/hexdump.o
  CC      fs/notify/inode_mark.o
  CC      fs/kernfs/file.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:430:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      net/ipv4/tcp_metrics.o
  CC      fs/fat/misc.o
  CC      drivers/gpio/devres.o
  LD      block/partitions/built-in.o
  CC      lib/kstrtox.o
  CC      lib/pci_iomap.o
  CC      drivers/base/attribute_container.o
  CC      net/ipv6/ip6_offload.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:430:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      net/ipv6/tcpv6_offload.o
  CC      drivers/cpuidle/driver.o
  LD      drivers/gpu/drm/bridge/built-in.o
  CC      fs/jbd2/recovery.o
  CC      fs/proc/inode.o
  LD      drivers/gpu/drm/hisilicon/built-in.o
  CC      fs/eventfd.o
  CC      net/ipv6/exthdrs_offload.o
  CC      lib/iomap_copy.o
  CC      fs/ext4/ialloc.o
  LD      drivers/gpu/drm/i2c/built-in.o
  CC      fs/ext4/inode.o
  CC      fs/ext4/page-io.o
  CC      fs/ntfs/collate.o
  LD      drivers/gpu/drm/omapdrm/displays/built-in.o
  CC      fs/ext2/inode.o
  CC      fs/sysfs/mount.o
  LD      drivers/gpu/drm/omapdrm/dss/built-in.o
  CC      lib/devres.o
  CC      fs/lockd/clntxdr.o
  CC      fs/sysfs/group.o
  LD      drivers/gpu/drm/omapdrm/built-in.o
  CC      fs/configfs/item.o
  CC      lib/hweight.o
  LD      drivers/gpu/drm/panel/built-in.o
  CC      fs/ext4/ioctl.o
  LD      drivers/gpu/drm/tilcdc/built-in.o
  CC      drivers/base/transport_class.o
  CC      fs/notify/mark.o
  LD      drivers/gpu/drm/built-in.o
  CC      lib/assoc_array.o
  CC      drivers/gpio/gpiolib.o
  CC      drivers/cpuidle/governor.o
  CC      drivers/gpu/vga/vgaarb.o
  CC      net/ipv4/tcp_fastopen.o
  CC      net/ipv4/tcp_rate.o
  CC      fs/fat/nfs.o
  CC      lib/crc16.o
  CC      lib/bitrev.o
  LD      net/sched/built-in.o
  HOSTCC  lib/gen_crc32table
  CC      drivers/base/topology.o
In file included from /home/kisskb/slave/src/fs/ext4/inode.c:42:0:
/home/kisskb/slave/src/fs/ext4/ext4_jbd2.h: In function 'ext4_inode_journal_mode':
/home/kisskb/slave/src/fs/ext4/ext4_jbd2.h:430:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      fs/aio.o
  CC      net/unix/af_unix.o
  CC      fs/kernfs/symlink.o
  CC      fs/locks.o
  CC      fs/ntfs/compress.o
  CC      drivers/cpuidle/sysfs.o
  LD      fs/sysfs/built-in.o
  LD      fs/configfs/configfs.o
  CC      fs/binfmt_misc.o
  LD      fs/configfs/built-in.o
  CC      fs/binfmt_script.o
  CC      fs/binfmt_elf.o
  CC      net/ipv4/tcp_recovery.o
  CC      lib/lz4/lz4_decompress.o
  CC      fs/mbcache.o
  CC      fs/proc/root.o
  CC      lib/lzo/lzo1x_compress.o
  CC      lib/fonts/fonts.o
  CC      lib/fonts/font_8x8.o
  CC      fs/coredump.o
  CC      drivers/base/container.o
  CC      net/ipv4/tcp_offload.o
  LD      net/ipv6/built-in.o
  CC      lib/fonts/font_8x16.o
  LD      net/wireless/built-in.o
  CC      lib/raid6/algos.o
  CC      lib/xz/xz_dec_syms.o
  CC      fs/jbd2/checkpoint.o
  CC      net/xfrm/xfrm_policy.o
  CC      fs/fat/namei_vfat.o
  LD      net/core/built-in.o
  CC      fs/notify/vfsmount_mark.o
  CC      fs/ext4/namei.o
  CC      drivers/base/property.o
  LD      block/built-in.o
  CC      drivers/base/cacheinfo.o
  CC      fs/fat/namei_msdos.o
  LD      fs/kernfs/built-in.o
  CC      net/sysctl_net.o
  CC      fs/drop_caches.o
  LD      lib/fonts/font.o
  CC      fs/lockd/host.o
  LD      lib/fonts/built-in.o
  CC      drivers/base/power/sysfs.o
  CC      lib/zlib_deflate/deflate.o
  CC      lib/audit.o
  CC      lib/xz/xz_dec_stream.o
  CC      drivers/cpuidle/governors/ladder.o
  CC      lib/zlib_inflate/inffast.o
  CC      fs/fhandle.o
  CC      fs/proc/base.o
  LD      lib/lz4/built-in.o
  CC      lib/syscall.o
  CC      net/sunrpc/xprt.o
  CC      lib/lzo/lzo1x_decompress_safe.o
  CC      fs/ext4/super.o
  CC      drivers/base/regmap/regmap.o
  CC      net/ipv4/datagram.o
  CC      net/ipv4/raw.o
  CC      net/ipv4/udp.o
  CC      lib/zlib_inflate/inflate.o
  CC      net/ipv4/udplite.o
  CC      fs/ext4/symlink.o
  CC      fs/ntfs/debug.o
  CC      fs/dcookies.o
  CC      fs/notify/fdinfo.o
  CC      lib/raid6/recov.o
  LD      drivers/gpu/vga/built-in.o
  CC      fs/ext2/ioctl.o
  LD      drivers/gpu/built-in.o
  CC      fs/ext4/hash.o
  CC      lib/nlattr.o
  CC      fs/ext4/resize.o
/home/kisskb/slave/src/fs/ext4/inode.c: In function 'ext4_map_blocks':
/home/kisskb/slave/src/fs/ext4/inode.c:574:5: warning: 'retval' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if (retval > 0 && map->m_flags & EXT4_MAP_MAPPED) {
     ^
  CC      lib/atomic64.o
  CC      fs/jbd2/revoke.o
  CC      drivers/hid/hid-core.o
  CC      net/ipv4/udp_offload.o
  CC      fs/notify/dnotify/dnotify.o
  CC      fs/ntfs/dir.o
  LD      drivers/base/test/built-in.o
  LD      lib/lzo/lzo_compress.o
  LD      drivers/cpuidle/governors/built-in.o
  LD      lib/lzo/lzo_decompress.o
  CC      drivers/base/power/generic_ops.o
  LD      drivers/cpuidle/built-in.o
  LD      lib/lzo/built-in.o
  CC      drivers/base/dma-mapping.o
  CC      net/ipv4/arp.o
  CC      lib/dynamic_queue_limits.o
  CC      lib/glob.o
  CC      drivers/hwmon/hwmon.o
  LD      fs/fat/fat.o
  CC      fs/nfs/file.o
  CC      lib/xz/xz_dec_lzma2.o
  LD      fs/fat/vfat.o
  CC      lib/xz/xz_dec_bcj.o
  CC      fs/ext2/namei.o
  CC      fs/ext2/super.o
  LD      fs/fat/msdos.o
  LD      fs/fat/built-in.o
  CC      lib/strncpy_from_user.o
  CC      fs/ntfs/file.o
  HOSTCC  lib/raid6/mktables
  CC      lib/strnlen_user.o
  CC      fs/ext4/extents.o
  CC      lib/net_utils.o
  CC      fs/ext4/ext4_jbd2.o
  CC      lib/zlib_deflate/deftree.o
  CC      lib/zlib_deflate/deflate_syms.o
  CC      fs/ext4/migrate.o
  CC      fs/ext4/mballoc.o
  CC      fs/ext4/block_validity.o
  CC      drivers/base/dma-coherent.o
  LD      fs/notify/dnotify/built-in.o
  CC      fs/lockd/svc.o
  CC      lib/zlib_inflate/infutil.o
  UNROLL  lib/raid6/int1.c
  CC      drivers/base/power/common.o
  GEN     lib/oid_registry_data.c
  LD      fs/notify/fanotify/built-in.o
  CC      lib/sg_pool.o
  UNROLL  lib/raid6/int2.c
  CC      lib/sbitmap.o
  UNROLL  lib/raid6/int4.c
  CC      lib/argv_split.o
  UNROLL  lib/raid6/int8.c
  CC      lib/bug.o
  UNROLL  lib/raid6/int16.c
  CC      net/ipv4/icmp.o
  UNROLL  lib/raid6/int32.c
  CC      drivers/gpio/gpiolib-legacy.o
  CC      fs/notify/inotify/inotify_fsnotify.o
  CC      drivers/gpio/gpiolib-devprop.o
  TABLE   lib/raid6/tables.c
  CC      lib/raid6/int1.o
  CC      net/ipv4/devinet.o
  CC      lib/raid6/int2.o
  CC      lib/raid6/int4.o
  CC      lib/chacha20.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:430:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      fs/jbd2/journal.o
  CC      drivers/base/firmware_class.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/zlib_inflate/inftrees.o
  CC      fs/ext2/symlink.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:430:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  LD      drivers/hwmon/built-in.o
  LD      drivers/hwtracing/intel_th/built-in.o
  CC      lib/cmdline.o
  CC      net/ipv4/af_inet.o
  CC      net/ipv4/igmp.o
  CC      lib/ctype.o
  CC      drivers/i2c/i2c-boardinfo.o
  CC      lib/dec_and_lock.o
  CC      fs/ext4/move_extent.o
  CC      lib/zlib_inflate/inflate_syms.o
  LD      lib/xz/xz_dec.o
  CC      lib/decompress.o
  CC      lib/decompress_inflate.o
  CC      lib/decompress_bunzip2.o
  CC      net/sunrpc/socklib.o
  LD      lib/xz/built-in.o
  CC      drivers/base/power/qos.o
  LD      lib/zlib_deflate/zlib_deflate.o
  CC      lib/decompress_unlzma.o
  CC      lib/decompress_unlz4.o
  CC      fs/notify/inotify/inotify_user.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:430:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  LD      lib/zlib_deflate/built-in.o
  LD      drivers/gpio/built-in.o
  CC      drivers/base/power/runtime.o
  CC      lib/decompress_unlzo.o
  CC      lib/raid6/int8.o
  CC      lib/decompress_unxz.o
  LD      fs/ext2/ext2.o
  CC      lib/dma-noop.o
  LD      drivers/idle/built-in.o
  CC      drivers/base/module.o
  LD      fs/ext2/built-in.o
  CC      net/unix/garbage.o
  CC      fs/ext4/mmp.o
  CC      fs/ext4/indirect.o
  LD      drivers/iommu/built-in.o
  CC      fs/ext4/extents_status.o
  CC      net/ipv4/fib_frontend.o
  CC      lib/raid6/int16.o
  CC      drivers/input/input.o
  LD      drivers/irqchip/built-in.o
  CC      fs/proc/generic.o
  CC      fs/ntfs/index.o
  LD      drivers/lguest/built-in.o
  CC      lib/raid6/int32.o
  LD      lib/zlib_inflate/zlib_inflate.o
  CC      drivers/base/regmap/regcache.o
  LD      lib/zlib_inflate/built-in.o
  CC      drivers/i2c/i2c-core.o
  LD      drivers/macintosh/built-in.o
  CC      lib/dump_stack.o
  CC      lib/earlycpio.o
  CC      lib/extable.o
  CC      fs/nfs/getroot.o
  CC      lib/flex_proportions.o
  CC      lib/idr.o
  LD      drivers/media/common/b2c2/built-in.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:430:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      lib/int_sqrt.o
  CC      drivers/hid/hid-input.o
  LD      drivers/media/common/saa7146/built-in.o
  CC      drivers/base/pinctrl.o
  CC      fs/lockd/svclock.o
  CC      lib/ioremap.o
  CC      fs/lockd/svcshare.o
  CC      net/ipv4/fib_semantics.o
  CC      fs/ext4/xattr.o
  LD      drivers/media/common/siano/built-in.o
  CC      lib/irq_regs.o
  CC      lib/is_single_threaded.o
  LD      drivers/media/common/v4l2-tpg/built-in.o
  CC      lib/raid6/tables.o
  CC      lib/klist.o
  LD      drivers/media/common/built-in.o
  CC      lib/kobject.o
  LD      fs/notify/inotify/built-in.o
  LD      fs/notify/built-in.o
  CC      lib/md5.o
  CC      lib/kobject_uevent.o
  CC      net/ipv4/fib_trie.o
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:430:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  LD      drivers/media/firewire/built-in.o
  CC      net/ipv4/inet_fragment.o
  CC      net/ipv4/ping.o
  CC      fs/ntfs/inode.o
  CC      net/ipv4/ip_tunnel_core.o
  LD      drivers/media/i2c/soc_camera/built-in.o
  CC      fs/proc/array.o
  CC      drivers/base/power/wakeirq.o
  CC      net/ipv4/gre_offload.o
  CC      lib/nmi_backtrace.o
  CC      net/sunrpc/xprtsock.o
  LD      drivers/media/i2c/built-in.o
  CC      fs/ext4/xattr_user.o
  CC      fs/ext4/xattr_trusted.o
  CC      lib/nodemask.o
  CC      lib/plist.o
  CC      lib/radix-tree.o
  CC      fs/ext4/inline.o
  LD      drivers/media/mmc/siano/built-in.o
  CC      net/unix/sysctl_net_unix.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      drivers/media/mmc/built-in.o
  CC      drivers/base/regmap/regcache-rbtree.o
  CC      lib/ratelimit.o
  CC      net/ipv4/sysctl_net_ipv4.o
  CC      lib/rbtree.o
  LD      drivers/media/pci/b2c2/built-in.o
  CC      drivers/base/power/clock_ops.o
  CC      fs/ext4/readpage.o
  LD      drivers/media/pci/ddbridge/built-in.o
  CC      lib/seq_buf.o
  CC      lib/sha1.o
  LD      drivers/media/pci/dm1105/built-in.o
  LD      drivers/media/pci/mantis/built-in.o
  CC      net/xfrm/xfrm_state.o
  CC      lib/show_mem.o
  CC      net/ipv4/proc.o
  LD      drivers/media/pci/netup_unidvb/built-in.o
  CC      fs/ext4/sysfs.o
  CC      lib/string.o
  LD      drivers/media/pci/ngene/built-in.o
  LD      drivers/media/pci/pluto2/built-in.o
  CC      lib/timerqueue.o
  CC      lib/vsprintf.o
  CC      fs/lockd/svcproc.o
  LD      drivers/media/pci/pt1/built-in.o
  LD      drivers/media/pci/pt3/built-in.o
  LD      lib/raid6/raid6_pq.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:430:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      fs/nfs/inode.o
  CC      fs/lockd/svcsubs.o
  LD      drivers/media/pci/saa7146/built-in.o
  LD      drivers/media/pci/smipcie/built-in.o
  LD      lib/raid6/built-in.o
  CC      net/ipv4/xfrm4_mode_beet.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/win_minmax.o
  LD      drivers/media/pci/ttpci/built-in.o
  CC      fs/lockd/mon.o
  GEN     lib/crc32table.h
  CC      lib/oid_registry.o
  CC      fs/lockd/xdr.o
  LD      drivers/media/pci/built-in.o
  CC      lib/crc32.o
  LD      fs/jbd2/jbd2.o
  CC      net/ipv4/xfrm4_mode_transport.o
  CC      net/ipv4/xfrm4_mode_tunnel.o
  CC      drivers/input/input-compat.o
  LD      fs/jbd2/built-in.o
  CC      drivers/input/input-mt.o
  CC      fs/proc/fd.o
  CC      fs/proc/proc_tty.o
  CC      drivers/input/mousedev.o
  CC      fs/proc/cmdline.o
  CC      drivers/input/ff-core.o
  CC      net/ipv4/ipconfig.o
  LD      net/unix/unix.o
  CC      fs/proc/consoles.o
  LD      net/unix/built-in.o
  CC      fs/ntfs/mft.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))
                                                ^
  LD      drivers/media/platform/omap/built-in.o
  LD      drivers/media/rc/keymaps/built-in.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;
           ^
  LD      drivers/media/spi/built-in.o
  LD      drivers/media/platform/built-in.o
  LD      drivers/media/rc/built-in.o
  LD      drivers/media/tuners/built-in.o
  CC      net/ipv4/inet_diag.o
  CC      net/ipv4/tcp_diag.o
  CC      drivers/i2c/algos/i2c-algo-pca.o
  CC      drivers/base/regmap/regcache-lzo.o
  CC      fs/btrfs/extent-tree.o
  CC      net/ipv4/tcp_cubic.o
  CC      drivers/i2c/busses/i2c-pca-platform.o
  CC      net/ipv4/xfrm4_policy.o
  CC      fs/proc/cpuinfo.o
  LD      drivers/media/usb/b2c2/built-in.o
  LD      drivers/base/power/built-in.o
  CC      net/ipv4/xfrm4_state.o
  CC      fs/proc/devices.o
  CC      fs/proc/interrupts.o
  LD      drivers/media/usb/dvb-usb/built-in.o
  CC      fs/proc/loadavg.o
  LD      drivers/input/keyboard/built-in.o
  LD      drivers/media/usb/dvb-usb-v2/built-in.o
  CC      fs/proc/meminfo.o
  CC      fs/proc/stat.o
  CC [M]  drivers/input/ff-memless.o
  CC      net/ipv4/xfrm4_input.o
  LD      drivers/media/usb/s2255/built-in.o
  CC      net/ipv4/xfrm4_output.o
  CC      fs/ntfs/mst.o
  LD      drivers/media/usb/siano/built-in.o
  LD      drivers/media/usb/stkwebcam/built-in.o
  CC      fs/proc/uptime.o
  CC      fs/ntfs/namei.o
  CC      fs/proc/version.o
  LD      drivers/media/usb/ttusb-budget/built-in.o
  LD      drivers/media/usb/ttusb-dec/built-in.o
  CC      net/ipv4/xfrm4_protocol.o
  LD      drivers/input/input-core.o
  CC      fs/proc/softirqs.o
  CC      fs/proc/namespaces.o
  CC      fs/proc/self.o
  CC      net/xfrm/xfrm_hash.o
  LD      drivers/media/usb/zr364xx/built-in.o
  CC      fs/proc/thread_self.o
  LD      drivers/media/usb/built-in.o
  CC      fs/proc/proc_sysctl.o
  CC      drivers/base/regmap/regcache-flat.o
  CC      fs/proc/proc_net.o
  CC      fs/lockd/clnt4xdr.o
  CC      fs/lockd/xdr4.o
  LD      drivers/media/built-in.o
  CC      fs/ntfs/runlist.o
  CC      fs/proc/kcore.o
  LD      drivers/i2c/algos/built-in.o
  CC      drivers/mfd/sm501.o
  CC      fs/lockd/svc4proc.o
  LD      drivers/input/built-in.o
  LD      drivers/i2c/muxes/built-in.o
  LD      drivers/i2c/busses/built-in.o
  CC      fs/lockd/procfs.o
  CC      fs/nfs/super.o
  CC      fs/nfs/io.o
  LD      drivers/mmc/built-in.o
  LD      drivers/i2c/built-in.o
  CC      net/sunrpc/sched.o
  CC      fs/nfs/direct.o
  LD      drivers/misc/cb710/built-in.o
  CC      fs/nfs/pagelist.o
  CC      fs/proc/kmsg.o
  CC      fs/ntfs/super.o
  LD      drivers/nfc/built-in.o
  CC      fs/proc/page.o
  LD      drivers/misc/eeprom/built-in.o
  CC      drivers/net/mii.o
  LD      drivers/nvme/host/built-in.o
  CC      drivers/mtd/mtdcore.o
  LD      drivers/misc/lis3lv02d/built-in.o
  LD      drivers/misc/mic/bus/built-in.o
  CC      drivers/mtd/mtdsuper.o
  LD      drivers/misc/mic/built-in.o
  LD      drivers/nvme/target/built-in.o
  LD      drivers/misc/ti-st/built-in.o
  LD      fs/ext4/ext4.o
  CC      drivers/hid/hid-debug.o
  CC      drivers/hid/hid-generic.o
  LD      drivers/nvme/built-in.o
  LD      drivers/misc/built-in.o
  CC      drivers/hid/hid-a4tech.o
  CC      net/xfrm/xfrm_input.o
  LD      fs/ext4/built-in.o
  CC      fs/ntfs/sysctl.o
  LD      drivers/perf/built-in.o
  LD      drivers/platform/built-in.o
  CC      fs/ntfs/unistr.o
  LD      drivers/power/built-in.o
  CC      drivers/base/regmap/regmap-debugfs.o
  LD      drivers/ptp/built-in.o
  CC      fs/ntfs/upcase.o
  CC      fs/ntfs/bitmap.o
  LD      drivers/pwm/built-in.o
  CC      drivers/ras/ras.o
  CC      drivers/pci/access.o
  CC      drivers/pinctrl/core.o
  LD      drivers/soc/bcm/built-in.o
  LD      drivers/soc/fsl/built-in.o
  CC      drivers/sh/clk/core.o
  CC      drivers/pinctrl/pinctrl-utils.o
  CC      drivers/rtc/hctosys.o
  CC      drivers/rtc/rtc-lib.o
  LD      drivers/soc/built-in.o
  CC      fs/ntfs/lcnalloc.o
  CC      drivers/rtc/systohc.o
  CC      fs/ntfs/logfile.o
  CC      drivers/tty/tty_io.o
  CC      drivers/scsi/scsi.o
  CC      drivers/mtd/mtdconcat.o
  CC      drivers/mtd/mtdpart.o
  CC      drivers/rtc/class.o
  CC      drivers/mtd/mtdchar.o
  CC      drivers/usb/common/common.o
  CC      drivers/video/backlight/backlight.o
  CC      drivers/hid/hid-apple.o
  CC      drivers/hid/hid-belkin.o
  CC      drivers/hid/hid-cherry.o
  CC      drivers/ras/debugfs.o
  CC      drivers/hid/hid-chicony.o
  CC      fs/nfs/read.o
  LD      net/ipv4/built-in.o
  CC      drivers/video/console/dummycon.o
  CC      fs/nfs/unlink.o
  CC      fs/nfs/symlink.o
  CC      fs/ntfs/quota.o
  LD      drivers/mfd/built-in.o
  CC      drivers/rtc/interface.o
  CC      fs/ntfs/usnjrnl.o
  CC      drivers/pinctrl/pinmux.o
  CC      drivers/pinctrl/pinconf.o
  CC      drivers/rtc/rtc-dev.o
  CC      drivers/net/Space.o
  CC      drivers/rtc/rtc-proc.o
  CC      drivers/video/console/fbcon.o
  LD      fs/proc/proc.o
  LD      fs/proc/built-in.o
  CC      drivers/hid/hid-cypress.o
  CC      drivers/video/console/bitblit.o
  LD      drivers/ras/built-in.o
  LD      drivers/usb/common/usb-common.o
  CC      drivers/hid/hid-ezkey.o
  CC      net/sunrpc/auth.o
  LD      fs/lockd/lockd.o
  CC      drivers/rtc/rtc-sysfs.o
  LD      drivers/usb/common/built-in.o
  CC      drivers/base/regmap/regmap-i2c.o
  AR      lib/lib.a
  EXPORTS lib/lib-ksyms.o
  LD      fs/lockd/built-in.o
  CC      drivers/sh/clk/cpg.o
  CC      drivers/hid/hid-gyration.o
  CC      drivers/rtc/rtc-generic.o
  CC      drivers/video/console/softcursor.o
  LD      lib/built-in.o
  CC      drivers/hid/hid-kensington.o
  CC      net/sunrpc/auth_null.o
  CC      drivers/rtc/rtc-sh.o
  CC      net/xfrm/xfrm_output.o
  CC      drivers/net/loopback.o
  CC      drivers/usb/core/usb.o
  CC      drivers/pci/bus.o
  CC      drivers/mtd/mtd_blkdevs.o
  CC      drivers/video/backlight/generic_bl.o
  CC [M]  drivers/video/backlight/lcd.o
  CC      net/xfrm/xfrm_sysctl.o
  CC      drivers/hid/hid-lg.o
  CC      fs/nfs/write.o
  CC      fs/nfs/namespace.o
  CC      drivers/hid/hid-microsoft.o
  CC      fs/nfs/mount_clnt.o
  CC      drivers/hid/hid-monterey.o
  CC      fs/nfs/nfstrace.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/hid/hid-pl.o
  CC      drivers/pinctrl/pinconf-generic.o
  CC      drivers/hid/hid-petalynx.o
  LD      drivers/pinctrl/bcm/built-in.o
  CC      drivers/scsi/hosts.o
  CC      drivers/scsi/scsicam.o
  LD      drivers/base/regmap/built-in.o
  CC      drivers/scsi/scsi_ioctl.o
  CC      drivers/hid/hid-samsung.o
  LD      drivers/base/built-in.o
  LD      drivers/pinctrl/freescale/built-in.o
  CC      drivers/hid/hid-sunplus.o
  LD      drivers/pinctrl/nomadik/built-in.o
  LD      drivers/sh/clk/built-in.o
  CC      drivers/pinctrl/sh-pfc/core.o
/home/kisskb/slave/src/drivers/rtc/rtc-sh.c:708:13: warning: 'sh_rtc_set_irq_wake' defined but not used [-Wunused-function]
 static void sh_rtc_set_irq_wake(struct device *dev, int enabled)
             ^
  CC      drivers/sh/intc/access.o
  CC      drivers/sh/pm_runtime.o
  CC      drivers/pinctrl/sh-pfc/pinctrl.o
  CC      drivers/usb/core/hub.o
  CC      fs/nfs/nfsroot.o
  CC      drivers/pinctrl/sh-pfc/gpio.o
  LD      drivers/rtc/rtc-core.o
  CC      fs/nfs/sysctl.o
  CC      drivers/pci/probe.o
  CC      drivers/tty/n_tty.o
  CC      drivers/mtd/mtdblock.o
  CC      fs/nfs/nfs2super.o
  CC      drivers/tty/tty_ioctl.o
  CC      fs/nfs/proc.o
  LD      drivers/net/ethernet/3com/built-in.o
  LD      drivers/mtd/devices/built-in.o
  LD      drivers/video/backlight/built-in.o
  LD      drivers/hid/hid.o
  CC      fs/btrfs/print-tree.o
  CC      fs/nfs/nfs2xdr.o
  CC      drivers/hid/usbhid/hid-core.o
  CC      drivers/mtd/chips/chipreg.o
  LD      drivers/mtd/lpddr/built-in.o
  LD      drivers/net/ethernet/8390/built-in.o
  LD      drivers/net/ethernet/adaptec/built-in.o
  LD      drivers/rtc/built-in.o
  LD      drivers/net/ethernet/agere/built-in.o
  LD      drivers/net/ethernet/alacritech/built-in.o
  CC      drivers/mtd/maps/physmap.o
  CC      fs/nfs/nfs3super.o
  LD      drivers/net/ethernet/alteon/built-in.o
  CC      drivers/usb/core/hcd.o
  CC      fs/nfs/nfs3client.o
  CC      fs/nfs/nfs3proc.o
  LD      drivers/net/ethernet/amazon/built-in.o
  LD      drivers/net/ethernet/amd/built-in.o
  LD      drivers/net/ethernet/arc/built-in.o
  CC      drivers/net/phy/phy.o
  CC      net/xfrm/xfrm_replay.o
  CC      fs/nfs/nfs3xdr.o
  CC      net/sunrpc/auth_unix.o
  LD      drivers/net/ethernet/broadcom/built-in.o
  LD      drivers/net/ethernet/atheros/built-in.o
  CC      drivers/scsi/scsi_error.o
  LD      drivers/net/ethernet/brocade/built-in.o
  CC      drivers/video/fbdev/core/fb_cmdline.o
  LD      drivers/net/ethernet/cadence/built-in.o
  CC      fs/nfs/nfs4proc.o
  LD      drivers/net/ethernet/chelsio/built-in.o
  LD      drivers/hid/hid-logitech.o
  LD      drivers/mtd/nand/built-in.o
  CC      drivers/pinctrl/sh-pfc/pfc-sh7786.o
  CC      fs/nfs/nfs4xdr.o
  LD      drivers/net/ethernet/cavium/liquidio/built-in.o
  LD      drivers/net/ethernet/cisco/built-in.o
  LD      drivers/mtd/onenand/built-in.o
  CC      net/sunrpc/auth_generic.o
  LD      drivers/net/ethernet/dec/built-in.o
  LD      fs/ntfs/ntfs.o
  LD      drivers/net/ethernet/dlink/built-in.o
  LD      drivers/net/ethernet/cavium/thunder/built-in.o
  LD      drivers/mtd/tests/built-in.o
  LD      drivers/net/ethernet/cavium/octeon/built-in.o
  LD      drivers/net/ethernet/emulex/built-in.o
  CC      drivers/scsi/scsi_lib.o
  LD      fs/ntfs/built-in.o
  CC      drivers/scsi/scsi_lib_dma.o
  CC      drivers/scsi/scsi_common.o
  LD      drivers/mtd/mtd.o
  LD      drivers/net/ethernet/ezchip/built-in.o
  LD      drivers/net/ethernet/cavium/built-in.o
  LD      drivers/net/ethernet/hp/built-in.o
  LD      drivers/net/ethernet/i825xx/built-in.o
  CC      fs/nfs/nfs4state.o
  CC      drivers/scsi/scsi_scan.o
  CC      drivers/sh/intc/chip.o
  CC      net/sunrpc/svc.o
  CC      drivers/net/ethernet/marvell/sky2.o
  LD      drivers/net/ethernet/intel/built-in.o
  CC      drivers/mtd/chips/cfi_probe.o
  LD      drivers/net/ethernet/micrel/built-in.o
  CC      fs/nfs/nfs4renewd.o
  LD      drivers/net/ethernet/mellanox/built-in.o
  LD      drivers/net/ethernet/myricom/built-in.o
  LD      drivers/net/ethernet/natsemi/built-in.o
  LD      drivers/net/ethernet/neterion/built-in.o
  CC      fs/nfs/nfs4super.o
  LD      drivers/net/ethernet/netronome/built-in.o
  CC      fs/nfs/nfs4file.o
  LD      drivers/net/ethernet/nvidia/built-in.o
  CC      drivers/scsi/scsi_sysfs.o
  LD      drivers/net/ethernet/oki-semi/built-in.o
  LD      drivers/net/ethernet/qlogic/built-in.o
  LD      drivers/net/ethernet/packetengines/built-in.o
  LD      drivers/mtd/maps/built-in.o
  LD      drivers/net/usb/built-in.o
  LD      drivers/net/ethernet/qualcomm/emac/built-in.o
  LD      drivers/net/ethernet/rdc/built-in.o
  LD      drivers/pinctrl/sh-pfc/built-in.o
  LD      drivers/net/ethernet/renesas/built-in.o
  CC      drivers/net/ethernet/realtek/8139cp.o
  LD      drivers/pinctrl/built-in.o
  LD      drivers/net/ethernet/qualcomm/built-in.o
  CC      fs/nfs/delegation.o
  LD      drivers/net/ethernet/rocker/built-in.o
  CC      drivers/tty/tty_ldisc.o
  LD      drivers/net/ethernet/samsung/built-in.o
  CC      drivers/scsi/scsi_devinfo.o
  LD      drivers/net/ethernet/seeq/built-in.o
  CC      drivers/tty/tty_buffer.o
  LD      drivers/net/ethernet/silan/built-in.o
  CC      drivers/tty/tty_port.o
  CC      drivers/video/fbdev/core/fb_notify.o
  LD      drivers/net/ethernet/sis/built-in.o
  LD      drivers/net/ethernet/stmicro/built-in.o
  CC      drivers/net/ethernet/smsc/smc91x.o
  LD      drivers/net/ethernet/sun/built-in.o
  LD      drivers/net/wireless/admtek/built-in.o
  LD      drivers/net/ethernet/synopsys/built-in.o
  LD      drivers/net/ethernet/tehuti/built-in.o
  LD      drivers/net/wireless/ath/built-in.o
  LD      drivers/net/ethernet/ti/built-in.o
  CC      fs/nfs/nfs4idmap.o
  CC      fs/nfs/callback.o
  LD      drivers/net/ethernet/via/built-in.o
  CC      drivers/sh/intc/core.o
  LD      drivers/net/ethernet/wiznet/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_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/net/wireless/atmel/built-in.o
  CC      fs/nfs/callback_xdr.o
  CC      drivers/sh/intc/handle.o
  LD      drivers/net/wireless/broadcom/built-in.o
  CC      fs/nfs/callback_proc.o
  CC      fs/nfs/nfs4namespace.o
  CC      drivers/scsi/scsi_sysctl.o
  CC      fs/btrfs/root-tree.o
  CC      fs/nfs/nfs4getroot.o
  LD      drivers/net/wireless/cisco/built-in.o
  CC      fs/nfs/nfs4client.o
  LD      drivers/net/wireless/intel/built-in.o
  CC      net/sunrpc/svcsock.o
  CC      fs/nfs/nfs4session.o
  CC      drivers/mtd/chips/cfi_util.o
  LD      drivers/net/wireless/intersil/built-in.o
  CC      fs/nfs/dns_resolve.o
  LD      drivers/net/wireless/marvell/built-in.o
  CC      drivers/video/fbdev/core/fbmem.o
  CC      drivers/pci/host-bridge.o
  LD      drivers/net/wireless/mediatek/built-in.o
  LD      drivers/net/wireless/ralink/built-in.o
  CC      drivers/tty/tty_mutex.o
  CC      net/sunrpc/svcauth.o
/home/kisskb/slave/src/drivers/net/ethernet/marvell/sky2.c: In function 'sky2_mhz':
/home/kisskb/slave/src/drivers/net/ethernet/marvell/sky2.c:3124:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      drivers/net/phy/phy_device.o
  LD      drivers/net/wireless/realtek/built-in.o
  LD      net/xfrm/built-in.o
  LD      drivers/net/wireless/rsi/built-in.o
  CC      drivers/hid/usbhid/hid-quirks.o
  LD      drivers/net/wireless/st/built-in.o
  CC      fs/nfs/nfs4trace.o
  CC      drivers/tty/tty_ldsem.o
  CC      fs/nfs/nfs4sysctl.o
  LD      drivers/net/wireless/ti/built-in.o
  CC      drivers/tty/pty.o
  CC      drivers/sh/intc/irqdomain.o
  LD      drivers/net/wireless/zydas/built-in.o
  CC      drivers/tty/tty_audit.o
  LD      drivers/net/wireless/built-in.o
  LD      fs/nfs/nfs.o
  CC      drivers/scsi/scsi_proc.o
  LD      fs/nfs/nfsv2.o
  LD      fs/nfs/nfsv3.o
  CC      drivers/scsi/scsi_trace.o
  CC      drivers/scsi/scsi_logging.o
  LD      drivers/tty/ipwireless/built-in.o
  CC      drivers/scsi/scsi_pm.o
  CC      drivers/scsi/sd.o
  CC      drivers/sh/intc/virq.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);
             ^
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/tty/serial/serial_core.o
  CC      drivers/tty/serial/sh-sci.o
  CC      drivers/tty/vt/vt_ioctl.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      drivers/tty/vt/vc_screen.o
  CC      drivers/pci/remove.o
  CC      drivers/tty/vt/selection.o
  LD      drivers/video/console/built-in.o
  CC      drivers/mtd/chips/cfi_cmdset_0002.o
  CC      drivers/video/logo/logo.o
  CC      drivers/usb/core/urb.o
  CC      drivers/mtd/chips/gen_probe.o
In file included from /home/kisskb/slave/src/include/linux/sunrpc/svcsock.h:13:0,
                 from /home/kisskb/slave/src/net/sunrpc/svcsock.c:53:
/home/kisskb/slave/src/include/linux/sunrpc/svc_xprt.h: In function 'svc_addr_len':
/home/kisskb/slave/src/include/linux/sunrpc/svc_xprt.h:177:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      net/sunrpc/svcauth_unix.o
  CC      drivers/usb/core/message.o
  CC      net/sunrpc/rpcb_clnt.o
  CC      net/sunrpc/addr.o
  CC      net/sunrpc/timer.o
  CC      drivers/usb/core/driver.o
  CC      net/sunrpc/xdr.o
  LD      drivers/hid/usbhid/usbhid.o
  CC      net/sunrpc/sunrpc_syms.o
  CC      drivers/pci/pci.o
  LD      drivers/hid/usbhid/built-in.o
  LD      drivers/hid/built-in.o
/home/kisskb/slave/src/net/sunrpc/svcsock.c: In function 'svc_setup_socket':
/home/kisskb/slave/src/net/sunrpc/svcsock.c:747:6: warning: 'optname' may be used uninitialized in this function [-Wmaybe-uninitialized]
  err = kernel_setsockopt(svsk->sk_sock, level, optname,
      ^
/home/kisskb/slave/src/net/sunrpc/svcsock.c:714:18: note: 'optname' was declared here
  int err, level, optname, one = 1;
                  ^
/home/kisskb/slave/src/net/sunrpc/svcsock.c:747:6: warning: 'level' may be used uninitialized in this function [-Wmaybe-uninitialized]
  err = kernel_setsockopt(svsk->sk_sock, level, optname,
      ^
/home/kisskb/slave/src/net/sunrpc/svcsock.c:714:11: note: 'level' was declared here
  int err, level, optname, one = 1;
           ^
  CC      drivers/pci/pci-driver.o
  CC      drivers/usb/core/config.o
  CC      drivers/pci/search.o
  LOGO    drivers/video/logo/logo_linux_clut224.c
  CC      fs/btrfs/dir-item.o
  LOGO    drivers/video/logo/logo_superh_mono.c
  LOGO    drivers/video/logo/logo_linux_mono.c
  LOGO    drivers/video/logo/logo_superh_vga16.c
  LOGO    drivers/video/logo/logo_linux_vga16.c
  LOGO    drivers/video/logo/clut_vga16.c
  LOGO    drivers/video/logo/logo_blackfin_vga16.c
  LOGO    drivers/video/logo/logo_spe_clut224.c
  LOGO    drivers/video/logo/logo_superh_clut224.c
  LOGO    drivers/video/logo/logo_sun_clut224.c
  LOGO    drivers/video/logo/logo_parisc_clut224.c
  LOGO    drivers/video/logo/logo_mac_clut224.c
  CC      drivers/pci/pci-sysfs.o
  CC      drivers/pci/rom.o
  LOGO    drivers/video/logo/logo_blackfin_clut224.c
  CC      drivers/pci/setup-res.o
  CC      drivers/usb/host/pci-quirks.o
  LOGO    drivers/video/logo/logo_dec_clut224.c
  LOGO    drivers/video/logo/logo_m32r_clut224.c
/home/kisskb/slave/src/drivers/scsi/sd.c: In function 'sd_init_command':
/home/kisskb/slave/src/drivers/scsi/sd.c:1173:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  LOGO    drivers/video/logo/logo_sgi_clut224.c
  CC      drivers/pci/irq.o
  LD      drivers/sh/intc/built-in.o
  CC      drivers/pci/vpd.o
  CC      drivers/video/logo/logo_linux_clut224.o
  LD      drivers/usb/misc/built-in.o
  LD      drivers/sh/built-in.o
  CC      drivers/pci/setup-bus.o
  CC      drivers/pci/vc.o
  LD      drivers/usb/phy/built-in.o
  CC      drivers/usb/mon/mon_main.o
  CC      drivers/pci/proc.o
  CC      drivers/usb/mon/mon_stat.o
  LD      drivers/video/logo/built-in.o
  CC      drivers/pci/slot.o
  CC      drivers/pci/quirks.o
  LD      drivers/scsi/scsi_mod.o
  LD      drivers/pci/host/built-in.o
  CC      drivers/usb/storage/scsiglue.o
  CC      drivers/pci/setup-irq.o
  CC      drivers/usb/mon/mon_text.o
  CC      drivers/tty/vt/consolemap.o
  CC      drivers/tty/vt/keyboard.o
  CC      drivers/pci/pcie/aspm.o
  CC      drivers/video/fbdev/core/fbmon.o
  CC      net/sunrpc/cache.o
  CC      drivers/usb/core/file.o
  LD      drivers/net/ethernet/realtek/built-in.o
  CC      net/sunrpc/rpc_pipe.o
  CC      drivers/net/phy/mdio_bus.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/net/phy/mdio_device.o
  CC      net/sunrpc/svc_xprt.o
  CC      drivers/net/phy/marvell.o
  CONMK   drivers/tty/vt/consolemap_deftbl.c
  CC      drivers/usb/mon/mon_bin.o
  CC      drivers/tty/vt/vt.o
  CC      net/sunrpc/xprtmultipath.o
  CC      net/sunrpc/stats.o
  CC      drivers/usb/core/buffer.o
  CC      net/sunrpc/sysctl.o
  CC      drivers/usb/core/sysfs.o
  CC      drivers/usb/core/endpoint.o
/home/kisskb/slave/src/net/sunrpc/svcauth_unix.c: In function 'svcauth_unix_set_client':
/home/kisskb/slave/src/net/sunrpc/svcauth_unix.c:685:9: warning: 'sin6' may be used uninitialized in this function [-Wmaybe-uninitialized]
   ipm = __ip_map_lookup(sn->ip_map_cache, rqstp->rq_server->sv_program->pg_class,
         ^
  SHIPPED drivers/tty/vt/defkeymap.c
  CC      drivers/tty/vt/consolemap_deftbl.o
  CC      drivers/usb/core/devio.o
  CC      net/sunrpc/auth_gss/auth_gss.o
  LD      drivers/net/ethernet/smsc/built-in.o
  CC      net/sunrpc/auth_gss/gss_generic_token.o
  CC      drivers/tty/vt/defkeymap.o
  CC      net/sunrpc/auth_gss/gss_mech_switch.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;
           ^
  CC      drivers/usb/core/notify.o
  CC      net/sunrpc/auth_gss/svcauth_gss.o
  CC      drivers/usb/core/generic.o
  CC      net/sunrpc/auth_gss/gss_rpc_upcall.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;
           ^
  CC      drivers/usb/host/ohci-hcd.o
  CC      drivers/usb/host/ohci-pci.o
  CC      drivers/video/fbdev/core/fbcmap.o
  CC      drivers/usb/core/quirks.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      drivers/usb/host/ohci-platform.o
  CC      fs/btrfs/file-item.o
  CC      fs/btrfs/inode-item.o
  CC      drivers/tty/serial/serial_mctrl_gpio.o
  CC      drivers/usb/storage/protocol.o
  CC      fs/btrfs/inode-map.o
  CC      fs/btrfs/disk-io.o
  CC      drivers/usb/core/port.o
  CC      drivers/usb/core/devices.o
  CC      fs/btrfs/transaction.o
  CC      fs/btrfs/inode.o
  CC      drivers/usb/core/hcd-pci.o
  CC      net/sunrpc/auth_gss/gss_rpc_xdr.o
  CC      fs/btrfs/file.o
  CC      fs/btrfs/tree-defrag.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;
           ^
  CC      fs/btrfs/extent_map.o
  CC      drivers/pci/pcie/portdrv_core.o
/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      fs/btrfs/sysfs.o
  CC      drivers/pci/pcie/portdrv_pci.o
  LD      drivers/net/phy/libphy.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;
           ^
  CC      drivers/pci/pcie/portdrv_bus.o
  CC      fs/btrfs/struct-funcs.o
  LD      fs/nfs/nfsv4.o
  CC      fs/btrfs/xattr.o
  CC      drivers/pci/pcie/pme.o
  CC      drivers/pci/pcie/aer/aerdrv_errprint.o
  LD      fs/nfs/built-in.o
  LD      drivers/tty/serial/built-in.o
  CC      drivers/pci/pcie/aer/aerdrv_core.o
  LD      drivers/mtd/chips/built-in.o
  CC      drivers/video/fbdev/core/fbsysfs.o
  LD      drivers/mtd/built-in.o
  CC      drivers/video/fbdev/core/modedb.o
  LD      drivers/video/fbdev/omap2/omapfb/dss/built-in.o
  LD      drivers/video/fbdev/omap2/omapfb/displays/built-in.o
  CC      drivers/video/fbdev/core/fbcvt.o
  LD      drivers/net/phy/built-in.o
  CC      drivers/video/fbdev/core/fb_defio.o
  CC      drivers/video/fbdev/core/cfbfillrect.o
  CC      drivers/video/fbdev/sm501fb.o
  LD      drivers/video/fbdev/omap2/omapfb/built-in.o
  LD      drivers/usb/mon/usbmon.o
  CC [M]  drivers/video/fbdev/sh_mobile_lcdcfb.o
  LD      drivers/usb/mon/built-in.o
  LD      drivers/video/fbdev/omap2/built-in.o
  CC      drivers/video/fbdev/core/cfbcopyarea.o
  CC      drivers/usb/storage/transport.o
  CC      drivers/usb/storage/usb.o
  CC      drivers/video/fbdev/core/cfbimgblt.o
  CC      drivers/usb/storage/initializers.o
  CC [M]  drivers/video/fbdev/core/sysfillrect.o
  CC      drivers/usb/storage/sierra_ms.o
  CC [M]  drivers/video/fbdev/core/syscopyarea.o
  CC      drivers/usb/storage/option_ms.o
  CC [M]  drivers/video/fbdev/core/sysimgblt.o
  CC      fs/btrfs/ordered-data.o
  CC      drivers/usb/storage/usual-tables.o
  CC      fs/btrfs/extent_io.o
  CC      drivers/pci/pcie/aer/aerdrv.o
  CC      fs/btrfs/volumes.o
  CC [M]  drivers/video/fbdev/core/fb_sys_fops.o
  LD      drivers/pci/pcie/pcieportdrv.o
  CC      fs/btrfs/async-thread.o
  LD      drivers/scsi/sd_mod.o
  LD      drivers/scsi/built-in.o
  CC      fs/btrfs/ioctl.o
  CC      fs/btrfs/locking.o
  CC      fs/btrfs/orphan.o
  CC      fs/btrfs/export.o
  CC      fs/btrfs/tree-log.o
  LD      net/sunrpc/sunrpc.o
  CC      fs/btrfs/free-space-cache.o
  CC      fs/btrfs/zlib.o
  CC      fs/btrfs/delayed-ref.o
  CC      fs/btrfs/compression.o
  CC      fs/btrfs/lzo.o
  CC      fs/btrfs/delayed-inode.o
  CC      fs/btrfs/relocation.o
  CC      fs/btrfs/scrub.o
  LD      drivers/net/ethernet/marvell/built-in.o
  CC      fs/btrfs/reada.o
  LD      drivers/net/ethernet/built-in.o
  CC      fs/btrfs/backref.o
  CC      fs/btrfs/ulist.o
  CC      fs/btrfs/qgroup.o
  CC      fs/btrfs/send.o
  LD      drivers/video/fbdev/core/fb.o
  CC      fs/btrfs/dev-replace.o
  LD      drivers/video/fbdev/core/built-in.o
  CC      fs/btrfs/raid56.o
  CC      fs/btrfs/uuid-tree.o
  CC      fs/btrfs/props.o
  CC      fs/btrfs/hash.o
  CC      fs/btrfs/free-space-tree.o
  LD      drivers/pci/pcie/aer/aerdriver.o
  LD      drivers/pci/pcie/aer/built-in.o
  LD      net/sunrpc/auth_gss/auth_rpcgss.o
  LD      drivers/pci/pcie/built-in.o
  LD      net/sunrpc/auth_gss/built-in.o
  LD      drivers/pci/built-in.o
  LD      net/sunrpc/built-in.o
  LD      drivers/usb/storage/usb-storage.o
  LD      drivers/usb/storage/built-in.o
  LD      net/built-in.o
  LD      drivers/usb/core/usbcore.o
  LD      drivers/net/built-in.o
  LD      drivers/usb/core/built-in.o
  LD      drivers/video/fbdev/built-in.o
  LD      drivers/usb/host/built-in.o
  LD      drivers/usb/built-in.o
  LD      drivers/tty/vt/built-in.o
  LD      drivers/tty/built-in.o
/home/kisskb/slave/src/fs/btrfs/backref.c: In function '__add_delayed_refs':
/home/kisskb/slave/src/fs/btrfs/backref.c:900:10: warning: 'sgn' may be used uninitialized in this function [-Wmaybe-uninitialized]
    ret = __add_prelim_ref(prefs, ref->root, &op_key,
          ^
  LD      drivers/video/built-in.o
  LD      drivers/built-in.o
In file included from /home/kisskb/slave/src/include/linux/sched.h:17:0,
                 from /home/kisskb/slave/src/fs/btrfs/volumes.c:18:
/home/kisskb/slave/src/fs/btrfs/volumes.c: In function '__btrfs_alloc_chunk.isra.13':
/home/kisskb/slave/src/include/linux/kernel.h:754:21: warning: 'max_chunk_size' may be used uninitialized in this function [-Wmaybe-uninitialized]
  min1 < min2 ? min1 : min2; })
                     ^
/home/kisskb/slave/src/fs/btrfs/volumes.c:4609:6: note: 'max_chunk_size' was declared here
  u64 max_chunk_size;
      ^
/home/kisskb/slave/src/fs/btrfs/volumes.c:4701:9: warning: 'max_stripe_size' may be used uninitialized in this function [-Wmaybe-uninitialized]
   ret = find_free_dev_extent(trans, device,
         ^
/home/kisskb/slave/src/fs/btrfs/inode.c: In function 'run_delalloc_nocow':
/home/kisskb/slave/src/fs/btrfs/inode.c:1422:6: warning: 'extent_end' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (extent_end <= start) {
      ^
  LD      fs/btrfs/btrfs.o
  LD      fs/btrfs/built-in.o
  LD      fs/built-in.o
  GEN     .version
  CHK     include/generated/compile.h
  UPD     include/generated/compile.h
  CC      init/version.o
  LD      init/built-in.o
  LD      vmlinux.o
  MODPOST vmlinux.o
  KSYM    .tmp_kallsyms1.o
  KSYM    .tmp_kallsyms2.o
  LD      vmlinux
  SYSMAP  System.map
  OBJCOPY arch/sh/boot/vmlinux.bin
  GZIP    arch/sh/boot/vmlinux.bin.gz
  Building modules, stage 2.
  MODPOST 11 modules
  CC      crypto/drbg.mod.o
  CC      crypto/echainiv.mod.o
  CC      crypto/jitterentropy_rng.mod.o
  CC      crypto/sha256_generic.mod.o
  CC      drivers/video/backlight/lcd.mod.o
  CC      drivers/input/ff-memless.mod.o
  CC      drivers/video/fbdev/core/fb_sys_fops.mod.o
  CC      drivers/video/fbdev/core/syscopyarea.mod.o
  CC      drivers/video/fbdev/core/sysfillrect.mod.o
  CC      drivers/video/fbdev/sh_mobile_lcdcfb.mod.o
  CC      drivers/video/fbdev/core/sysimgblt.mod.o
  LD [M]  crypto/echainiv.ko
  LD [M]  drivers/video/fbdev/sh_mobile_lcdcfb.ko
  LD [M]  crypto/sha256_generic.ko
  LD [M]  drivers/video/backlight/lcd.ko
  LD [M]  drivers/video/fbdev/core/sysimgblt.ko
  LD [M]  crypto/drbg.ko
  LD [M]  drivers/input/ff-memless.ko
  LD [M]  drivers/video/fbdev/core/syscopyarea.ko
  LD [M]  crypto/jitterentropy_rng.ko
  LD [M]  drivers/video/fbdev/core/fb_sys_fops.ko
  LD [M]  drivers/video/fbdev/core/sysfillrect.ko
  UIMAGE  arch/sh/boot/uImage.gz
Image Name:   Linux-4.10.0-rc2-gea07b86
Created:      Sun Jan  8 15:21:28 2017
Image Type:   SuperH Linux Kernel Image (gzip compressed)
Data Size:    4108458 Bytes = 4012.17 kB = 3.92 MB
Load Address: 88001000
Entry Point:  88002000
  Image arch/sh/boot/uImage is ready
make[1]: Leaving directory '/home/kisskb/slave/build/linus_urquell_defconfig_sh4'
Completed OK
# rm -rf /home/kisskb/slave/build/linus_urquell_defconfig_sh4
# Build took: 0:00:59.455218