# git rev-parse -q --verify 142b9e6c9de0fd7c0dff9a1d4a25390de46abf5e^{commit}
142b9e6c9de0fd7c0dff9a1d4a25390de46abf5e
already have revision, skipping fetch
# git checkout -q -f -B kisskb 142b9e6c9de0fd7c0dff9a1d4a25390de46abf5e
# git clean -qxdf
# git log -1
commit 142b9e6c9de0fd7c0dff9a1d4a25390de46abf5e
Author: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Date:   Fri Mar 18 10:04:37 2016 +0100

    x86/kallsyms: fix GOLD link failure with new relative kallsyms table format
    
    Commit 2213e9a66bb8 ("kallsyms: add support for relative offsets in
    kallsyms address table") changed the default kallsyms symbol table
    format to use relative references rather than absolute addresses.
    
    This reduces the size of the kallsyms symbol table by 50% on 64-bit
    architectures, and further reduces the size of the relocation tables
    used by relocatable kernels.  Since the memory footprint of the static
    kernel image is always much smaller than 4 GB, these relative references
    are assumed to be representable in 32 bits, even when the native word
    size is 64 bits.
    
    On 64-bit architectures, this obviously only works if the distance
    between each relative reference and the chosen anchor point is
    representable in 32 bits, and so the table generation code in
    scripts/kallsyms.c scans the table for the lowest value that is covered
    by the kernel text, and selects it as the anchor point.
    
    However, when using the GOLD linker rather than the default BFD linker
    to build the x86_64 kernel, the symbol phys_offset_64, which is the
    result of arithmetic defined in the linker script, is emitted as a 'T'
    rather than an 'A' type symbol, resulting in scripts/kallsyms.c to
    mistake it for a suitable anchor point, even though it is far away from
    the actual kernel image in the virtual address space.  This results in
    out-of-range warnings from scripts/kallsyms.c and a broken build.
    
    So let's align with the BFD linker, and emit the phys_offset_[32|64]
    symbols as absolute symbols explicitly.  Note that the out of range
    issue does not exist on 32-bit x86, but this patch changes both symbols
    for symmetry.
    
    Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
    Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
    Cc: Andrew Morton <akpm@linux-foundation.org>
    Cc: Kees Cook <keescook@chromium.org>
    Cc: Guenter Roeck <linux@roeck-us.net>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/arcompact-buildroot-2015.08.1/bin/arc-buildroot-linux-uclibc-gcc --version
# < git log --format=%s --max-count=1 142b9e6c9de0fd7c0dff9a1d4a25390de46abf5e
# < make -j 48 ARCH=arc O=/home/kisskb/slave/build/linus_axs101_defconfig_arcompact CROSS_COMPILE=/opt/cross/arcompact-buildroot-2015.08.1/bin/arc-buildroot-linux-uclibc-  axs101_defconfig
drivers/pci/pcie/Kconfig:62:warning: choice value used outside its choice group
drivers/pci/pcie/Kconfig:68:warning: choice value used outside its choice group
drivers/pci/pcie/Kconfig:75:warning: choice value used outside its choice group
# Added to kconfig CONFIG_INITRAMFS_SOURCE=""
# yes \n | make -j 48 ARCH=arc O=/home/kisskb/slave/build/linus_axs101_defconfig_arcompact CROSS_COMPILE=/opt/cross/arcompact-buildroot-2015.08.1/bin/arc-buildroot-linux-uclibc-  oldconfig
yes: standard output: Broken pipe
yes: write error
# make -j 48 ARCH=arc O=/home/kisskb/slave/build/linus_axs101_defconfig_arcompact CROSS_COMPILE=/opt/cross/arcompact-buildroot-2015.08.1/bin/arc-buildroot-linux-uclibc-  
make[1]: Entering directory '/home/kisskb/slave/build/linus_axs101_defconfig_arcompact'
  GEN     ./Makefile
scripts/kconfig/conf  --silentoldconfig Kconfig
drivers/pci/pcie/Kconfig:62:warning: choice value used outside its choice group
drivers/pci/pcie/Kconfig:68:warning: choice value used outside its choice group
drivers/pci/pcie/Kconfig:75:warning: choice value used outside its choice group
  CHK     include/config/kernel.release
  GEN     ./Makefile
  WRAP    arch/arc/include/generated/asm/auxvec.h
  WRAP    arch/arc/include/generated/asm/bitsperlong.h
  WRAP    arch/arc/include/generated/asm/bugs.h
  WRAP    arch/arc/include/generated/asm/clkdev.h
  WRAP    arch/arc/include/generated/asm/cputime.h
  WRAP    arch/arc/include/generated/asm/device.h
  WRAP    arch/arc/include/generated/asm/div64.h
  WRAP    arch/arc/include/generated/asm/emergency-restart.h
  WRAP    arch/arc/include/generated/asm/errno.h
  WRAP    arch/arc/include/generated/asm/fb.h
  WRAP    arch/arc/include/generated/asm/fcntl.h
  WRAP    arch/arc/include/generated/asm/ftrace.h
  WRAP    arch/arc/include/generated/asm/hardirq.h
  WRAP    arch/arc/include/generated/asm/hw_irq.h
  WRAP    arch/arc/include/generated/asm/ioctl.h
  WRAP    arch/arc/include/generated/asm/ioctls.h
  WRAP    arch/arc/include/generated/asm/ipcbuf.h
  WRAP    arch/arc/include/generated/asm/irq_regs.h
  WRAP    arch/arc/include/generated/asm/irq_work.h
  WRAP    arch/arc/include/generated/asm/kmap_types.h
  WRAP    arch/arc/include/generated/asm/kvm_para.h
  WRAP    arch/arc/include/generated/asm/local.h
  WRAP    arch/arc/include/generated/asm/local64.h
  WRAP    arch/arc/include/generated/asm/mcs_spinlock.h
  WRAP    arch/arc/include/generated/asm/mm-arch-hooks.h
  WRAP    arch/arc/include/generated/asm/mman.h
  WRAP    arch/arc/include/generated/asm/msgbuf.h
  WRAP    arch/arc/include/generated/asm/param.h
  WRAP    arch/arc/include/generated/asm/parport.h
  WRAP    arch/arc/include/generated/asm/pci.h
  WRAP    arch/arc/include/generated/asm/percpu.h
  WRAP    arch/arc/include/generated/asm/poll.h
  WRAP    arch/arc/include/generated/asm/posix_types.h
  WRAP    arch/arc/include/generated/asm/preempt.h
  WRAP    arch/arc/include/generated/asm/resource.h
  WRAP    arch/arc/include/generated/asm/sembuf.h
  WRAP    arch/arc/include/generated/asm/shmbuf.h
  WRAP    arch/arc/include/generated/asm/siginfo.h
  WRAP    arch/arc/include/generated/asm/socket.h
  WRAP    arch/arc/include/generated/asm/sockios.h
  WRAP    arch/arc/include/generated/asm/stat.h
  WRAP    arch/arc/include/generated/asm/statfs.h
  WRAP    arch/arc/include/generated/asm/termbits.h
  WRAP    arch/arc/include/generated/asm/termios.h
  WRAP    arch/arc/include/generated/asm/topology.h
  WRAP    arch/arc/include/generated/asm/trace_clock.h
  WRAP    arch/arc/include/generated/asm/types.h
  WRAP    arch/arc/include/generated/asm/ucontext.h
  WRAP    arch/arc/include/generated/asm/user.h
  WRAP    arch/arc/include/generated/asm/vga.h
  WRAP    arch/arc/include/generated/asm/word-at-a-time.h
  WRAP    arch/arc/include/generated/asm/xor.h
  CHK     include/generated/uapi/linux/version.h
  UPD     include/generated/uapi/linux/version.h
  UPD     include/config/kernel.release
  HOSTCC  scripts/basic/bin2c
  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
  HOSTCC  scripts/sortextable
  HOSTCC  scripts/dtc/dtc.o
  CC      scripts/mod/empty.o
  HOSTCC  scripts/mod/mk_elfconfig
  HOSTCC  scripts/dtc/flattree.o
  HOSTCC  scripts/dtc/fstree.o
  CC      scripts/mod/devicetable-offsets.s
  HOSTCC  scripts/dtc/data.o
  HOSTCC  scripts/dtc/livetree.o
  HOSTCC  scripts/dtc/treesource.o
  HOSTCC  scripts/dtc/srcpos.o
  HOSTCC  scripts/dtc/checks.o
  HOSTCC  scripts/dtc/util.o
  SHIPPED scripts/dtc/dtc-parser.tab.h
  SHIPPED scripts/dtc/dtc-parser.tab.c
  SHIPPED scripts/dtc/dtc-lexer.lex.c
  HOSTCC  scripts/dtc/dtc-parser.tab.o
  HOSTCC  scripts/dtc/dtc-lexer.lex.o
  GEN     scripts/mod/devicetable-offsets.h
  MKELF   scripts/mod/elfconfig.h
  HOSTCC  scripts/mod/modpost.o
  HOSTCC  scripts/mod/file2alias.o
  HOSTCC  scripts/mod/sumversion.o
  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/arc/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/dtc/dtc
  HOSTLD  scripts/mod/modpost
<stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp]
<stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp]
  CC      init/main.o
  CHK     include/generated/compile.h
  CC      init/do_mounts.o
  CC      init/do_mounts_initrd.o
  CC      init/initramfs.o
  CC      init/calibrate.o
  CC      init/init_task.o
  UPD     include/generated/compile.h
  CC      init/version.o
  HOSTCC  usr/gen_init_cpio
  CC      arch/arc/mm/extable.o
  CC      arch/arc/mm/ioremap.o
  CC      arch/arc/mm/dma.o
  CC      arch/arc/mm/fault.o
  CC      arch/arc/mm/init.o
  CC      arch/arc/mm/tlb.o
  AS      arch/arc/mm/tlbex.o
  CC      arch/arc/mm/cache.o
  CC      arch/arc/mm/mmap.o
  CC      arch/arc/kernel/irq.o
  CC      arch/arc/kernel/arcksyms.o
  CC      arch/arc/kernel/setup.o
  CC      arch/arc/kernel/reset.o
  CC      arch/arc/kernel/time.o
  CC      arch/arc/kernel/ptrace.o
  CC      arch/arc/kernel/process.o
  CC      arch/arc/kernel/sys.o
  CC      arch/arc/kernel/devtree.o
  CC      arch/arc/kernel/disasm.o
  CC      arch/arc/kernel/traps.o
  CC      arch/arc/kernel/clk.o
  CC      arch/arc/kernel/signal.o
  CC      arch/arc/kernel/stacktrace.o
  CC      arch/arc/kernel/troubleshoot.o
  CC      arch/arc/kernel/perf_event.o
  CC      arch/arc/kernel/intc-compact.o
  AS      arch/arc/kernel/entry-compact.o
  CC      arch/arc/kernel/unwind.o
  CC      arch/arc/kernel/module.o
  AS      arch/arc/kernel/head.o
  CC      arch/arc/kernel/ctx_sw.o
  LDS     arch/arc/kernel/vmlinux.lds
  DTC     arch/arc/boot/dts/axs101.dtb
  GEN     usr/initramfs_data.cpio.gz
  DTB     arch/arc/boot/dts/axs101.dtb.S
  AS      arch/arc/boot/dts/axs101.dtb.o
  CC      arch/arc/plat-axs10x/axs10x.o
In file included from /home/kisskb/slave/src/include/asm-generic/tlb.h:20:0,
                 from /home/kisskb/slave/src/arch/arc/include/asm/tlb.h:45,
                 from /home/kisskb/slave/src/arch/arc/kernel/setup.c:22:
/home/kisskb/slave/src/arch/arc/include/asm/tlbflush.h:29:0: warning: "flush_pmd_tlb_range" redefined [enabled by default]
 #define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e)
 ^
In file included from /home/kisskb/slave/src/arch/arc/include/asm/pgtable.h:399:0,
                 from /home/kisskb/slave/src/include/linux/mm.h:68,
                 from /home/kisskb/slave/src/include/linux/pagemap.h:7,
                 from /home/kisskb/slave/src/arch/arc/include/asm/tlb.h:44,
                 from /home/kisskb/slave/src/arch/arc/kernel/setup.c:22:
/home/kisskb/slave/src/include/asm-generic/pgtable.h:799:0: note: this is the location of the previous definition
 #define flush_pmd_tlb_range(vma, addr, end) BUILD_BUG()
 ^
In file included from /home/kisskb/slave/src/include/asm-generic/tlb.h:20:0,
                 from /home/kisskb/slave/src/arch/arc/include/asm/tlb.h:45,
                 from /home/kisskb/slave/src/arch/arc/include/asm/mmu_context.h:22,
                 from /home/kisskb/slave/src/arch/arc/mm/tlb.c:58:
/home/kisskb/slave/src/arch/arc/include/asm/tlbflush.h:29:0: warning: "flush_pmd_tlb_range" redefined [enabled by default]
 #define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e)
 ^
In file included from /home/kisskb/slave/src/arch/arc/include/asm/pgtable.h:399:0,
                 from /home/kisskb/slave/src/include/linux/mm.h:68,
                 from /home/kisskb/slave/src/include/linux/pagemap.h:7,
                 from /home/kisskb/slave/src/arch/arc/include/asm/tlb.h:44,
                 from /home/kisskb/slave/src/arch/arc/include/asm/mmu_context.h:22,
                 from /home/kisskb/slave/src/arch/arc/mm/tlb.c:58:
/home/kisskb/slave/src/include/asm-generic/pgtable.h:799:0: note: this is the location of the previous definition
 #define flush_pmd_tlb_range(vma, addr, end) BUILD_BUG()
 ^
  AS      usr/initramfs_data.o
  LD      arch/arc/boot/dts/built-in.o
  LD      usr/built-in.o
  CC      kernel/fork.o
  CC      kernel/exec_domain.o
  CC      kernel/cpu.o
  CC      kernel/panic.o
  CC      kernel/softirq.o
  CC      kernel/exit.o
  CC      kernel/resource.o
  CC      kernel/ptrace.o
  CC      kernel/capability.o
  CC      kernel/sysctl_binary.o
  CC      kernel/user.o
  CC      kernel/sysctl.o
  CC      kernel/signal.o
  CC      kernel/sys_ni.o
  CC      kernel/workqueue.o
  CC      kernel/extable.o
  CC      kernel/kmod.o
  CC      kernel/kthread.o
  CC      kernel/reboot.o
  CC      kernel/sys.o
  CC      kernel/task_work.o
  CC      kernel/cred.o
  CC      kernel/async.o
  CC      kernel/params.o
  CC      kernel/pid.o
  CC      kernel/ksysfs.o
  CC      kernel/notifier.o
  CC      kernel/nsproxy.o
  CC      kernel/smpboot.o
  CC      kernel/range.o
  CC      kernel/groups.o
  CC      kernel/bpf/core.o
  LD      arch/arc/plat-axs10x/built-in.o
  CC      kernel/events/core.o
  LD      kernel/livepatch/built-in.o
  CC      kernel/power/qos.o
  CC      kernel/printk/printk.o
  CC      kernel/locking/mutex.o
  CC      kernel/rcu/update.o
  CC      kernel/events/ring_buffer.o
  LD      certs/built-in.o
  CC      kernel/rcu/sync.o
  LD      arch/arc/mm/built-in.o
  CC      kernel/irq/irqdesc.o
  CC      kernel/irq/handle.o
  CC      kernel/events/callchain.o
  CC      kernel/stacktrace.o
In file included from /home/kisskb/slave/src/include/asm-generic/tlb.h:20:0,
                 from /home/kisskb/slave/src/arch/arc/include/asm/tlb.h:45,
                 from /home/kisskb/slave/src/arch/arc/include/asm/mmu_context.h:22,
                 from /home/kisskb/slave/src/kernel/exit.c:60:
/home/kisskb/slave/src/arch/arc/include/asm/tlbflush.h:29:0: warning: "flush_pmd_tlb_range" redefined [enabled by default]
 #define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e)
 ^
In file included from /home/kisskb/slave/src/arch/arc/include/asm/pgtable.h:399:0,
                 from /home/kisskb/slave/src/include/linux/mm.h:68,
                 from /home/kisskb/slave/src/kernel/exit.c:7:
/home/kisskb/slave/src/include/asm-generic/pgtable.h:799:0: note: this is the location of the previous definition
 #define flush_pmd_tlb_range(vma, addr, end) BUILD_BUG()
 ^
  CC      kernel/sched/core.o
  CC      kernel/futex.o
  CC      kernel/time/time.o
  CC      kernel/time/timer.o
  CC      kernel/up.o
  CC      kernel/module.o
  CC      kernel/kallsyms.o
In file included from /home/kisskb/slave/src/include/asm-generic/tlb.h:20:0,
                 from /home/kisskb/slave/src/arch/arc/include/asm/tlb.h:45,
                 from /home/kisskb/slave/src/arch/arc/include/asm/mmu_context.h:22,
                 from /home/kisskb/slave/src/kernel/fork.c:82:
/home/kisskb/slave/src/arch/arc/include/asm/tlbflush.h:29:0: warning: "flush_pmd_tlb_range" redefined [enabled by default]
 #define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e)
 ^
In file included from /home/kisskb/slave/src/arch/arc/include/asm/pgtable.h:399:0,
                 from /home/kisskb/slave/src/include/linux/mm.h:68,
                 from /home/kisskb/slave/src/include/linux/pagemap.h:7,
                 from /home/kisskb/slave/src/include/linux/mempolicy.h:14,
                 from /home/kisskb/slave/src/kernel/fork.c:21:
/home/kisskb/slave/src/include/asm-generic/pgtable.h:799:0: note: this is the location of the previous definition
 #define flush_pmd_tlb_range(vma, addr, end) BUILD_BUG()
 ^
  GZIP    kernel/config_data.gz
  CC      kernel/hung_task.o
  CC      kernel/watchdog.o
  CC      kernel/utsname_sysctl.o
  CC      kernel/elfcore.o
  CC      kernel/irq_work.o
In file included from /home/kisskb/slave/src/include/asm-generic/tlb.h:20:0,
                 from /home/kisskb/slave/src/arch/arc/include/asm/tlb.h:45,
                 from /home/kisskb/slave/src/arch/arc/include/asm/mmu_context.h:22,
                 from /home/kisskb/slave/src/kernel/sched/core.c:36:
/home/kisskb/slave/src/arch/arc/include/asm/tlbflush.h:29:0: warning: "flush_pmd_tlb_range" redefined [enabled by default]
 #define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e)
 ^
In file included from /home/kisskb/slave/src/arch/arc/include/asm/pgtable.h:399:0,
                 from /home/kisskb/slave/src/include/linux/mm.h:68,
                 from /home/kisskb/slave/src/kernel/sched/core.c:30:
/home/kisskb/slave/src/include/asm-generic/pgtable.h:799:0: note: this is the location of the previous definition
 #define flush_pmd_tlb_range(vma, addr, end) BUILD_BUG()
 ^
  CC      kernel/membarrier.o
  CC      kernel/memremap.o
  CHK     kernel/config_data.h
  CC      kernel/time/hrtimer.o
  LD      init/mounts.o
  CC      kernel/time/itimer.o
  CC      kernel/sched/loadavg.o
  UPD     kernel/config_data.h
  LD      init/built-in.o
  CC      kernel/configs.o
  CC      kernel/sched/clock.o
  CC      kernel/rcu/srcu.o
  CC      kernel/rcu/tree.o
/home/kisskb/slave/src/kernel/sched/core.c: In function 'pick_next_task':
/home/kisskb/slave/src/kernel/sched/core.c:3079:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      kernel/irq/manage.o
  CC      kernel/time/posix-timers.o
  CC      kernel/locking/semaphore.o
  CC      kernel/sched/cputime.o
  CC      kernel/locking/rwsem.o
  CC      kernel/locking/percpu-rwsem.o
  CC      kernel/locking/rtmutex.o
  CC      kernel/sched/idle_task.o
  CC      kernel/locking/rwsem-spinlock.o
In file included from /home/kisskb/slave/src/include/asm-generic/tlb.h:20:0,
                 from /home/kisskb/slave/src/arch/arc/include/asm/tlb.h:45,
                 from /home/kisskb/slave/src/arch/arc/include/asm/mmu_context.h:22,
                 from /home/kisskb/slave/src/kernel/module.c:51:
/home/kisskb/slave/src/arch/arc/include/asm/tlbflush.h:29:0: warning: "flush_pmd_tlb_range" redefined [enabled by default]
 #define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e)
 ^
In file included from /home/kisskb/slave/src/arch/arc/include/asm/pgtable.h:399:0,
                 from /home/kisskb/slave/src/include/linux/mm.h:68,
                 from /home/kisskb/slave/src/include/linux/ring_buffer.h:5,
                 from /home/kisskb/slave/src/include/linux/trace_events.h:5,
                 from /home/kisskb/slave/src/kernel/module.c:21:
/home/kisskb/slave/src/include/asm-generic/pgtable.h:799:0: note: this is the location of the previous definition
 #define flush_pmd_tlb_range(vma, addr, end) BUILD_BUG()
 ^
  CC      kernel/irq/spurious.o
  CC      kernel/sched/fair.o
  CC      kernel/irq/resend.o
  CC      kernel/sched/rt.o
  CC      kernel/irq/chip.o
  CC      kernel/sched/deadline.o
  CC      kernel/irq/dummychip.o
  CC      kernel/sched/stop_task.o
  CC      kernel/irq/devres.o
  CC      mm/filemap.o
/home/kisskb/slave/src/kernel/sysctl.c: In function '__do_proc_doulongvec_minmax':
/home/kisskb/slave/src/kernel/sysctl.c:1949:12: warning: 'p' may be used uninitialized in this function [-Wmaybe-uninitialized]
  ret = tmp - *buf;
            ^
/home/kisskb/slave/src/kernel/sysctl.c:2363:22: note: 'p' was declared here
  char *kbuf = NULL, *p;
                      ^
  CC      kernel/sched/wait.o
  CC      kernel/time/posix-cpu-timers.o
  CC      mm/mempool.o
  CC      kernel/sched/swait.o
  CC      kernel/irq/generic-chip.o
  CC      kernel/sched/completion.o
/home/kisskb/slave/src/kernel/sysctl.c: In function '__do_proc_dointvec':
/home/kisskb/slave/src/kernel/sysctl.c:1949:12: warning: 'p' may be used uninitialized in this function [-Wmaybe-uninitialized]
  ret = tmp - *buf;
            ^
/home/kisskb/slave/src/kernel/sysctl.c:2108:22: note: 'p' was declared here
  char *kbuf = NULL, *p;
                      ^
  CC      kernel/irq/irqdomain.o
  CC      kernel/sched/idle.o
  CC      kernel/irq/proc.o
  CC      ipc/util.o
  CC      ipc/msgutil.o
  CC      kernel/time/timekeeping.o
  CC      kernel/time/ntp.o
  CC      security/commoncap.o
  CC      kernel/time/clocksource.o
  LD      kernel/power/built-in.o
  CC      security/min_addr.o
  CC      kernel/time/jiffies.o
  CC      kernel/time/timer_list.o
  CC      mm/oom_kill.o
  CC      fs/open.o
  CC      kernel/time/timeconv.o
  CC      mm/maccess.o
  CC      kernel/time/timecounter.o
  CC      kernel/time/posix-clock.o
  CC      fs/read_write.o
  CC      kernel/time/alarmtimer.o
  CC      fs/file_table.o
In file included from /home/kisskb/slave/src/include/asm-generic/tlb.h:20:0,
                 from /home/kisskb/slave/src/arch/arc/include/asm/tlb.h:45,
                 from /home/kisskb/slave/src/kernel/sched/idle.c:13:
/home/kisskb/slave/src/arch/arc/include/asm/tlbflush.h:29:0: warning: "flush_pmd_tlb_range" redefined [enabled by default]
 #define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e)
 ^
In file included from /home/kisskb/slave/src/arch/arc/include/asm/pgtable.h:399:0,
                 from /home/kisskb/slave/src/include/linux/mm.h:68,
                 from /home/kisskb/slave/src/kernel/sched/idle.c:9:
/home/kisskb/slave/src/include/asm-generic/pgtable.h:799:0: note: this is the location of the previous definition
 #define flush_pmd_tlb_range(vma, addr, end) BUILD_BUG()
 ^
  CC      kernel/time/clockevents.o
  CC      fs/super.o
  CC      kernel/time/tick-common.o
/home/kisskb/slave/src/kernel/time/posix-cpu-timers.c: In function 'posix_cpu_timer_get':
/home/kisskb/slave/src/kernel/time/posix-cpu-timers.c:787:21: warning: 'now' may be used uninitialized in this function [-Wmaybe-uninitialized]
   sample_to_timespec(timer->it_clock,
                     ^
  CC      ipc/msg.o
  CC      kernel/time/tick-oneshot.o
  LD      kernel/bpf/built-in.o
  LD      arch/arc/kernel/built-in.o
  CC      kernel/time/tick-sched.o
  LD      arch/arc/built-in.o
  CC      crypto/api.o
  CC      crypto/cipher.o
/home/kisskb/slave/src/kernel/time/posix-cpu-timers.c: In function 'posix_cpu_timer_schedule':
/home/kisskb/slave/src/kernel/time/posix-cpu-timers.c:95:8: warning: 'now' may be used uninitialized in this function [-Wmaybe-uninitialized]
  delta = now + incr - timer->it.cpu.expires;
        ^
/home/kisskb/slave/src/kernel/time/posix-cpu-timers.c:1023:21: note: 'now' was declared here
  unsigned long long now;
                     ^
  CC      crypto/compress.o
  CC      crypto/memneq.o
  CC      mm/page_alloc.o
  CC      crypto/crypto_wq.o
  CC      mm/page-writeback.o
  CC      crypto/algapi.o
  CC      mm/readahead.o
/home/kisskb/slave/src/kernel/time/posix-cpu-timers.c: In function 'posix_cpu_timer_set':
/home/kisskb/slave/src/kernel/time/posix-cpu-timers.c:665:17: warning: 'val' may be used uninitialized in this function [-Wmaybe-uninitialized]
     old_expires = timer->it.cpu.expires - val;
                 ^
  LD      kernel/locking/built-in.o
  CC      crypto/scatterwalk.o
  CC      mm/swap.o
  CC      mm/vmscan.o
  CC      mm/truncate.o
  CC      ipc/sem.o
  CC      ipc/shm.o
  CC      mm/shmem.o
  CC      ipc/syscall.o
  CC      mm/util.o
  CC      ipc/ipc_sysctl.o
  LD      kernel/irq/built-in.o
  CC      mm/mmzone.o
  CC      crypto/proc.o
  CC      mm/vmstat.o
  CC      crypto/aead.o
  CC      ipc/mqueue.o
In file included from /home/kisskb/slave/src/mm/page_alloc.c:68:0:
/home/kisskb/slave/src/arch/arc/include/asm/tlbflush.h:29:0: warning: "flush_pmd_tlb_range" redefined [enabled by default]
 #define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e)
 ^
In file included from /home/kisskb/slave/src/arch/arc/include/asm/pgtable.h:399:0,
                 from /home/kisskb/slave/src/include/linux/mm.h:68,
                 from /home/kisskb/slave/src/mm/page_alloc.c:18:
/home/kisskb/slave/src/include/asm-generic/pgtable.h:799:0: note: this is the location of the previous definition
 #define flush_pmd_tlb_range(vma, addr, end) BUILD_BUG()
 ^
  CC      crypto/ablkcipher.o
In file included from /home/kisskb/slave/src/mm/vmscan.c:51:0:
/home/kisskb/slave/src/arch/arc/include/asm/tlbflush.h:29:0: warning: "flush_pmd_tlb_range" redefined [enabled by default]
 #define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e)
 ^
In file included from /home/kisskb/slave/src/arch/arc/include/asm/pgtable.h:399:0,
                 from /home/kisskb/slave/src/include/linux/mm.h:68,
                 from /home/kisskb/slave/src/mm/vmscan.c:16:
/home/kisskb/slave/src/include/asm-generic/pgtable.h:799:0: note: this is the location of the previous definition
 #define flush_pmd_tlb_range(vma, addr, end) BUILD_BUG()
 ^
  CC      ipc/namespace.o
  LD      security/built-in.o
  CC      fs/char_dev.o
  CC      fs/stat.o
  CC      crypto/blkcipher.o
  CC      block/bio.o
  CC      mm/backing-dev.o
  CC      crypto/skcipher.o
  CC      crypto/chainiv.o
  CC      ipc/mq_sysctl.o
  CC      crypto/eseqiv.o
  CC      mm/mm_init.o
  CC      mm/mmu_context.o
/home/kisskb/slave/src/kernel/time/posix-cpu-timers.c: In function 'set_process_cpu_timer':
/home/kisskb/slave/src/kernel/time/posix-cpu-timers.c:1238:13: warning: 'now' may be used uninitialized in this function [-Wmaybe-uninitialized]
     *oldval -= now;
             ^
  LD      sound/built-in.o
  CC      crypto/ahash.o
  CC      block/elevator.o
  CC      crypto/shash.o
  LD      drivers/amba/built-in.o
  LD      drivers/auxdisplay/built-in.o
  CC      crypto/akcipher.o
  CC      block/blk-core.o
  LD      drivers/block/built-in.o
  LD      firmware/built-in.o
  CC      mm/percpu.o
In file included from /home/kisskb/slave/src/include/asm-generic/tlb.h:20:0,
                 from /home/kisskb/slave/src/arch/arc/include/asm/tlb.h:45,
                 from /home/kisskb/slave/src/arch/arc/include/asm/mmu_context.h:22,
                 from /home/kisskb/slave/src/mm/mmu_context.c:11:
/home/kisskb/slave/src/arch/arc/include/asm/tlbflush.h:29:0: warning: "flush_pmd_tlb_range" redefined [enabled by default]
 #define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e)
 ^
In file included from /home/kisskb/slave/src/arch/arc/include/asm/pgtable.h:399:0,
                 from /home/kisskb/slave/src/include/linux/mm.h:68,
                 from /home/kisskb/slave/src/mm/mmu_context.c:6:
/home/kisskb/slave/src/include/asm-generic/pgtable.h:799:0: note: this is the location of the previous definition
 #define flush_pmd_tlb_range(vma, addr, end) BUILD_BUG()
 ^
  LD      drivers/bus/built-in.o
  CC      crypto/algboss.o
  CC      mm/slab_common.o
  LD      drivers/cdrom/built-in.o
  CC      mm/compaction.o
  CC      crypto/testmgr.o
/home/kisskb/slave/src/ipc/shm.c: In function 'SyS_shmat':
/home/kisskb/slave/src/ipc/shm.c:1252:2: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return (long)ret;
  ^
/home/kisskb/slave/src/ipc/shm.c:1245:16: note: 'ret' was declared here
  unsigned long ret;
                ^
  CC      fs/exec.o
  CC      crypto/crypto_null.o
  LD      kernel/printk/built-in.o
  CC      crypto/aes_generic.o
  CC      drivers/char/mem.o
  CC      mm/vmacache.o
  CC      crypto/crc32c_generic.o
  CC      drivers/base/component.o
  CC      fs/pipe.o
  CC      crypto/rng.o
  CC      mm/interval_tree.o
  CC      mm/list_lru.o
  CC      mm/workingset.o
  CC      drivers/clk/clk-devres.o
In file included from /home/kisskb/slave/src/mm/percpu.c:76:0:
/home/kisskb/slave/src/arch/arc/include/asm/tlbflush.h:29:0: warning: "flush_pmd_tlb_range" redefined [enabled by default]
 #define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e)
 ^
In file included from /home/kisskb/slave/src/arch/arc/include/asm/pgtable.h:399:0,
                 from /home/kisskb/slave/src/include/linux/mm.h:68,
                 from /home/kisskb/slave/src/mm/percpu.c:63:
/home/kisskb/slave/src/include/asm-generic/pgtable.h:799:0: note: this is the location of the previous definition
 #define flush_pmd_tlb_range(vma, addr, end) BUILD_BUG()
 ^
  CC [M]  crypto/echainiv.o
  CC      drivers/char/random.o
  CC      mm/debug.o
In file included from /home/kisskb/slave/src/mm/slab_common.c:19:0:
/home/kisskb/slave/src/arch/arc/include/asm/tlbflush.h:29:0: warning: "flush_pmd_tlb_range" redefined [enabled by default]
 #define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e)
 ^
In file included from /home/kisskb/slave/src/arch/arc/include/asm/pgtable.h:399:0,
                 from /home/kisskb/slave/src/include/linux/mm.h:68,
                 from /home/kisskb/slave/src/mm/slab_common.c:8:
/home/kisskb/slave/src/include/asm-generic/pgtable.h:799:0: note: this is the location of the previous definition
 #define flush_pmd_tlb_range(vma, addr, end) BUILD_BUG()
 ^
  CC      net/socket.o
  CC [M]  crypto/hmac.o
  CC      drivers/clk/clkdev.o
  CC [M]  crypto/sha256_generic.o
  CC      fs/namei.o
In file included from /home/kisskb/slave/src/include/asm-generic/tlb.h:20:0,
                 from /home/kisskb/slave/src/arch/arc/include/asm/tlb.h:45,
                 from /home/kisskb/slave/src/arch/arc/include/asm/mmu_context.h:22,
                 from /home/kisskb/slave/src/fs/exec.c:62:
/home/kisskb/slave/src/arch/arc/include/asm/tlbflush.h:29:0: warning: "flush_pmd_tlb_range" redefined [enabled by default]
 #define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e)
 ^
In file included from /home/kisskb/slave/src/arch/arc/include/asm/pgtable.h:399:0,
                 from /home/kisskb/slave/src/include/linux/mm.h:68,
                 from /home/kisskb/slave/src/fs/exec.c:28:
/home/kisskb/slave/src/include/asm-generic/pgtable.h:799:0: note: this is the location of the previous definition
 #define flush_pmd_tlb_range(vma, addr, end) BUILD_BUG()
 ^
  CC      mm/gup.o
  CC      mm/highmem.o
  CC [M]  crypto/drbg.o
  CC [M]  crypto/jitterentropy.o
  CC [M]  crypto/jitterentropy-kcapi.o
  CC      mm/memory.o
  LD      kernel/sched/built-in.o
  CC      fs/fcntl.o
  CC      fs/ioctl.o
  LD      crypto/crypto.o
  LD      crypto/crypto_algapi.o
  CC      mm/mincore.o
  LD      crypto/crypto_hash.o
  CC      mm/mlock.o
  LD      arch/arc/lib/built-in.o
  CC      fs/readdir.o
  AS      arch/arc/lib/memcmp.o
  LD      crypto/cryptomgr.o
  CC      mm/mmap.o
  CC      fs/select.o
  CC      drivers/base/core.o
  CC      drivers/base/bus.o
  CC      mm/mprotect.o
  CC      mm/mremap.o
In file included from /home/kisskb/slave/src/mm/highmem.c:30:0:
/home/kisskb/slave/src/arch/arc/include/asm/tlbflush.h:29:0: warning: "flush_pmd_tlb_range" redefined [enabled by default]
 #define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e)
 ^
In file included from /home/kisskb/slave/src/arch/arc/include/asm/pgtable.h:399:0,
                 from /home/kisskb/slave/src/include/linux/mm.h:68,
                 from /home/kisskb/slave/src/mm/highmem.c:19:
/home/kisskb/slave/src/include/asm-generic/pgtable.h:799:0: note: this is the location of the previous definition
 #define flush_pmd_tlb_range(vma, addr, end) BUILD_BUG()
 ^
  CC      drivers/char/misc.o
  CC      fs/dcache.o
  CC      mm/msync.o
In file included from /home/kisskb/slave/src/include/asm-generic/tlb.h:20:0,
                 from /home/kisskb/slave/src/arch/arc/include/asm/tlb.h:45,
                 from /home/kisskb/slave/src/mm/memory.c:70:
/home/kisskb/slave/src/arch/arc/include/asm/tlbflush.h:29:0: warning: "flush_pmd_tlb_range" redefined [enabled by default]
 #define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e)
 ^
In file included from /home/kisskb/slave/src/arch/arc/include/asm/pgtable.h:399:0,
                 from /home/kisskb/slave/src/include/linux/mm.h:68,
                 from /home/kisskb/slave/src/mm/memory.c:42:
/home/kisskb/slave/src/include/asm-generic/pgtable.h:799:0: note: this is the location of the previous definition
 #define flush_pmd_tlb_range(vma, addr, end) BUILD_BUG()
 ^
  AS      arch/arc/lib/memcpy-700.o
In file included from /home/kisskb/slave/src/mm/gup.c:18:0:
/home/kisskb/slave/src/arch/arc/include/asm/tlbflush.h:29:0: warning: "flush_pmd_tlb_range" redefined [enabled by default]
 #define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e)
 ^
In file included from /home/kisskb/slave/src/arch/arc/include/asm/pgtable.h:399:0,
                 from /home/kisskb/slave/src/include/linux/mm.h:68,
                 from /home/kisskb/slave/src/mm/gup.c:6:
/home/kisskb/slave/src/include/asm-generic/pgtable.h:799:0: note: this is the location of the previous definition
 #define flush_pmd_tlb_range(vma, addr, end) BUILD_BUG()
 ^
  CC      mm/rmap.o
  CC      mm/vmalloc.o
  CC      mm/pagewalk.o
  AS      arch/arc/lib/memset.o
  CC      drivers/clk/clk.o
  AS      arch/arc/lib/strchr-700.o
  CC      mm/pgtable-generic.o
  LD      virt/lib/built-in.o
  LD      kernel/time/built-in.o
  CC      lib/lockref.o
  AS      arch/arc/lib/strcmp.o
  LD      virt/built-in.o
  CC      drivers/clk/clk-divider.o
  AS      arch/arc/lib/strcpy-700.o
  LD      crypto/crypto_blkcipher.o
  CC      drivers/clk/clk-fixed-factor.o
  CC      fs/inode.o
  AS      arch/arc/lib/strlen.o
  CC      fs/attr.o
In file included from /home/kisskb/slave/src/mm/mremap.c:27:0:
/home/kisskb/slave/src/arch/arc/include/asm/tlbflush.h:29:0: warning: "flush_pmd_tlb_range" redefined [enabled by default]
 #define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e)
 ^
In file included from /home/kisskb/slave/src/arch/arc/include/asm/pgtable.h:399:0,
                 from /home/kisskb/slave/src/include/linux/mm.h:68,
                 from /home/kisskb/slave/src/mm/mremap.c:10:
/home/kisskb/slave/src/include/asm-generic/pgtable.h:799:0: note: this is the location of the previous definition
 #define flush_pmd_tlb_range(vma, addr, end) BUILD_BUG()
 ^
  CC      fs/bad_inode.o
  LD [M]  crypto/jitterentropy_rng.o
  CC      mm/init-mm.o
  AR      arch/arc/lib/lib.a
In file included from /home/kisskb/slave/src/mm/mprotect.c:30:0:
/home/kisskb/slave/src/arch/arc/include/asm/tlbflush.h:29:0: warning: "flush_pmd_tlb_range" redefined [enabled by default]
 #define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e)
 ^
In file included from /home/kisskb/slave/src/arch/arc/include/asm/pgtable.h:399:0,
                 from /home/kisskb/slave/src/include/linux/mm.h:68,
                 from /home/kisskb/slave/src/mm/mprotect.c:11:
/home/kisskb/slave/src/include/asm-generic/pgtable.h:799:0: note: this is the location of the previous definition
 #define flush_pmd_tlb_range(vma, addr, end) BUILD_BUG()
 ^
  CC      fs/file.o
In file included from /home/kisskb/slave/src/include/asm-generic/tlb.h:20:0,
                 from /home/kisskb/slave/src/arch/arc/include/asm/tlb.h:45,
                 from /home/kisskb/slave/src/mm/mmap.c:48:
/home/kisskb/slave/src/arch/arc/include/asm/tlbflush.h:29:0: warning: "flush_pmd_tlb_range" redefined [enabled by default]
 #define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e)
 ^
In file included from /home/kisskb/slave/src/arch/arc/include/asm/pgtable.h:399:0,
                 from /home/kisskb/slave/src/include/linux/mm.h:68,
                 from /home/kisskb/slave/src/include/linux/pagemap.h:7,
                 from /home/kisskb/slave/src/include/linux/blkdev.h:14,
                 from /home/kisskb/slave/src/include/linux/backing-dev.h:14,
                 from /home/kisskb/slave/src/mm/mmap.c:13:
/home/kisskb/slave/src/include/asm-generic/pgtable.h:799:0: note: this is the location of the previous definition
 #define flush_pmd_tlb_range(vma, addr, end) BUILD_BUG()
 ^
  CC      mm/nobootmem.o
  CC      lib/bcd.o
In file included from /home/kisskb/slave/src/include/asm-generic/tlb.h:20:0,
                 from /home/kisskb/slave/src/arch/arc/include/asm/tlb.h:45,
                 from /home/kisskb/slave/src/mm/pgtable-generic.c:10:
/home/kisskb/slave/src/arch/arc/include/asm/tlbflush.h:29:0: warning: "flush_pmd_tlb_range" redefined [enabled by default]
 #define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e)
 ^
In file included from /home/kisskb/slave/src/arch/arc/include/asm/pgtable.h:399:0,
                 from /home/kisskb/slave/src/include/linux/mm.h:68,
                 from /home/kisskb/slave/src/include/linux/pagemap.h:7,
                 from /home/kisskb/slave/src/mm/pgtable-generic.c:9:
/home/kisskb/slave/src/include/asm-generic/pgtable.h:799:0: note: this is the location of the previous definition
 #define flush_pmd_tlb_range(vma, addr, end) BUILD_BUG()
 ^
In file included from /home/kisskb/slave/src/mm/vmalloc.c:35:0:
/home/kisskb/slave/src/arch/arc/include/asm/tlbflush.h:29:0: warning: "flush_pmd_tlb_range" redefined [enabled by default]
 #define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e)
 ^
In file included from /home/kisskb/slave/src/arch/arc/include/asm/pgtable.h:399:0,
                 from /home/kisskb/slave/src/include/linux/mm.h:68,
                 from /home/kisskb/slave/src/mm/vmalloc.c:12:
/home/kisskb/slave/src/include/asm-generic/pgtable.h:799:0: note: this is the location of the previous definition
 #define flush_pmd_tlb_range(vma, addr, end) BUILD_BUG()
 ^
In file included from /home/kisskb/slave/src/mm/rmap.c:65:0:
/home/kisskb/slave/src/arch/arc/include/asm/tlbflush.h:29:0: warning: "flush_pmd_tlb_range" redefined [enabled by default]
 #define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e)
 ^
In file included from /home/kisskb/slave/src/arch/arc/include/asm/pgtable.h:399:0,
                 from /home/kisskb/slave/src/include/linux/mm.h:68,
                 from /home/kisskb/slave/src/mm/rmap.c:48:
/home/kisskb/slave/src/include/asm-generic/pgtable.h:799:0: note: this is the location of the previous definition
 #define flush_pmd_tlb_range(vma, addr, end) BUILD_BUG()
 ^
  LD      drivers/char/agp/built-in.o
  CC      block/blk-tag.o
  CC      lib/div64.o
  CC      mm/fadvise.o
  CC      mm/madvise.o
  CC      mm/memblock.o
  CC      lib/sort.o
  CC      fs/filesystems.o
  LD      kernel/rcu/built-in.o
  CC      mm/dmapool.o
  CC      fs/namespace.o
  CC      lib/parser.o
  CC      mm/slub.o
In file included from /home/kisskb/slave/src/include/asm-generic/bug.h:13:0,
                 from /home/kisskb/slave/src/arch/arc/include/asm/bug.h:31,
                 from /home/kisskb/slave/src/include/linux/bug.h:4,
                 from /home/kisskb/slave/src/include/linux/mmdebug.h:4,
                 from /home/kisskb/slave/src/include/linux/gfp.h:4,
                 from /home/kisskb/slave/src/include/linux/slab.h:14,
                 from /home/kisskb/slave/src/mm/nobootmem.c:13:
/home/kisskb/slave/src/mm/nobootmem.c: In function '__free_pages_memory':
/home/kisskb/slave/src/include/linux/kernel.h:754:17: warning: comparison of distinct pointer types lacks a cast [enabled by default]
  (void) (&_min1 == &_min2);  \
                 ^
/home/kisskb/slave/src/mm/nobootmem.c:100:11: note: in expansion of macro 'min'
   order = min(MAX_ORDER - 1UL, __ffs(start));
           ^
  CC      fs/seq_file.o
  CC      lib/halfmd4.o
  LD      drivers/char/built-in.o
  CC      drivers/clk/clk-fixed-rate.o
  CC      lib/debug_locks.o
  CC      lib/random32.o
  CC      fs/xattr.o
  LD      drivers/clocksource/built-in.o
  CC      fs/libfs.o
In file included from /home/kisskb/slave/src/include/linux/sched.h:22:0,
                 from /home/kisskb/slave/src/include/linux/kasan.h:4,
                 from /home/kisskb/slave/src/include/linux/slab.h:112,
                 from /home/kisskb/slave/src/mm/mmap.c:12:
/home/kisskb/slave/src/mm/mmap.c: In function 'vma_adjust':
/home/kisskb/slave/src/include/linux/rbtree.h:83:28: warning: 'rb_parent' may be used uninitialized in this function [-Wmaybe-uninitialized]
  node->__rb_parent_color = (unsigned long)parent;
                            ^
/home/kisskb/slave/src/mm/mmap.c:589:29: note: 'rb_parent' was declared here
  struct rb_node **rb_link, *rb_parent;
                             ^
In file included from /home/kisskb/slave/src/include/linux/sched.h:22:0,
                 from /home/kisskb/slave/src/include/linux/kasan.h:4,
                 from /home/kisskb/slave/src/include/linux/slab.h:112,
                 from /home/kisskb/slave/src/mm/mmap.c:12:
/home/kisskb/slave/src/include/linux/rbtree.h:86:11: warning: 'rb_link' may be used uninitialized in this function [-Wmaybe-uninitialized]
  *rb_link = node;
           ^
/home/kisskb/slave/src/mm/mmap.c:589:19: note: 'rb_link' was declared here
  struct rb_node **rb_link, *rb_parent;
                   ^
/home/kisskb/slave/src/mm/mmap.c:557:17: 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:588:25: note: 'prev' was declared here
  struct vm_area_struct *prev;
                         ^
  LD      ipc/built-in.o
  CC      fs/fs-writeback.o
  CC      block/blk-sysfs.o
  LD      drivers/crypto/built-in.o
  CC      fs/pnode.o
  LD      drivers/firewire/built-in.o
  CC      fs/splice.o
  CC      fs/sync.o
  CC      lib/bust_spinlocks.o
  CC      lib/kasprintf.o
  CC      lib/bitmap.o
  CC      fs/utimes.o
  LD      drivers/firmware/broadcom/built-in.o
  CC      drivers/gpio/devres.o
  CC      drivers/base/dd.o
  LD      drivers/firmware/built-in.o
  CC      fs/stack.o
  CC      fs/fs_struct.o
In file included from /home/kisskb/slave/src/include/asm-generic/tlb.h:20:0,
                 from /home/kisskb/slave/src/arch/arc/include/asm/tlb.h:45,
                 from /home/kisskb/slave/src/mm/madvise.c:25:
/home/kisskb/slave/src/arch/arc/include/asm/tlbflush.h:29:0: warning: "flush_pmd_tlb_range" redefined [enabled by default]
 #define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e)
 ^
In file included from /home/kisskb/slave/src/arch/arc/include/asm/pgtable.h:399:0,
                 from /home/kisskb/slave/src/include/linux/mm.h:68,
                 from /home/kisskb/slave/src/include/linux/mman.h:4,
                 from /home/kisskb/slave/src/mm/madvise.c:8:
/home/kisskb/slave/src/include/asm-generic/pgtable.h:799:0: note: this is the location of the previous definition
 #define flush_pmd_tlb_range(vma, addr, end) BUILD_BUG()
 ^
  CC      fs/statfs.o
  CC      lib/scatterlist.o
  CC      drivers/clk/clk-gate.o
  LD      drivers/gpu/drm/bridge/built-in.o
  CC      drivers/hid/hid-core.o
  LD      drivers/gpu/drm/i2c/built-in.o
  LD      drivers/gpu/drm/panel/built-in.o
  CC      lib/gcd.o
  CC      lib/lcm.o
  CC      lib/list_sort.o
  LD      drivers/gpu/drm/tilcdc/built-in.o
  LD      drivers/gpu/drm/omapdrm/displays/built-in.o
  CC      drivers/gpio/gpiolib.o
  CC      drivers/gpio/gpiolib-legacy.o
  CC      lib/uuid.o
  CC      lib/flex_array.o
  LD      drivers/gpu/drm/omapdrm/dss/built-in.o
  CC      lib/iov_iter.o
  CC      fs/fs_pin.o
  CC      block/blk-flush.o
  CC      fs/nsfs.o
  CC      lib/clz_ctz.o
  CC      fs/buffer.o
  LD      drivers/gpu/drm/omapdrm/built-in.o
  CC      lib/bsearch.o
  CC      lib/find_bit.o
  CC      lib/llist.o
/home/kisskb/slave/src/fs/namei.c: In function 'walk_component':
/home/kisskb/slave/src/fs/namei.c:1713:2: warning: 'seq' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return pick_link(nd, link, inode, seq);
  ^
/home/kisskb/slave/src/fs/namei.c:1722:11: note: 'seq' was declared here
  unsigned seq;
           ^
  LD      drivers/gpu/drm/built-in.o
  CC      fs/block_dev.o
  CC      block/blk-settings.o
  CC      drivers/clk/clk-multiplier.o
  CC      fs/direct-io.o
  CC      fs/mpage.o
  CC      lib/memweight.o
  CC      fs/proc_namespace.o
  LD      crypto/built-in.o
  CC      lib/kfifo.o
  CC      lib/percpu-refcount.o
  LD      drivers/gpu/vga/built-in.o
  CC      drivers/clk/clk-mux.o
  CC      lib/percpu_ida.o
  CC      lib/rhashtable.o
  LD      net/802/built-in.o
  LD      drivers/gpu/built-in.o
  CC      lib/reciprocal_div.o
  CC      fs/devpts/inode.o
  LD      fs/exofs/built-in.o
  CC      drivers/gpio/gpiolib-of.o
  CC      drivers/base/syscore.o
  LD      drivers/hsi/clients/built-in.o
  CC      drivers/base/driver.o
/home/kisskb/slave/src/fs/namei.c: In function 'path_openat':
/home/kisskb/slave/src/fs/namei.c:1713:2: warning: 'seq' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return pick_link(nd, link, inode, seq);
  ^
/home/kisskb/slave/src/fs/namei.c:3070:11: note: 'seq' was declared here
  unsigned seq;
           ^
  CC      lib/once.o
  CC      lib/string_helpers.o
  CC      drivers/clk/clk-composite.o
  LD      drivers/hsi/controllers/built-in.o
  CC      fs/fat/cache.o
  LD      drivers/hsi/built-in.o
  CC      lib/hexdump.o
  CC      fs/fat/dir.o
  LD      drivers/hwtracing/intel_th/built-in.o
  CC      fs/ext4/balloc.o
  CC      fs/jbd2/transaction.o
  CC      net/core/sock.o
  CC      fs/kernfs/mount.o
  CC      lib/kstrtox.o
  CC      drivers/clk/clk-fractional-divider.o
  CC      lib/pci_iomap.o
  CC      drivers/i2c/i2c-boardinfo.o
  CC      lib/iomap_copy.o
  CC      drivers/base/class.o
  CC      fs/nfs_common/grace.o
  CC      drivers/clk/clk-gpio.o
  CC      fs/lockd/clntlock.o
  CC      drivers/base/platform.o
  CC      lib/devres.o
  CC      drivers/base/cpu.o
  CC      lib/hweight.o
  CC      drivers/gpio/gpio-generic.o
  CC      fs/nls/nls_base.o
  CC      fs/nls/nls_cp437.o
  CC      lib/bitrev.o
  CC      drivers/i2c/i2c-core.o
  LD      fs/devpts/devpts.o
  CC      lib/rational.o
  CC      fs/fat/fatent.o
  LD      fs/devpts/built-in.o
  CC      fs/nfs/client.o
  CC      fs/fat/file.o
  CC      lib/crc16.o
  HOSTCC  lib/gen_crc32table
  CC      block/blk-ioc.o
  CC      net/core/request_sock.o
  CC      lib/lz4/lz4_decompress.o
  CC      block/blk-map.o
  CC      fs/notify/fsnotify.o
  CC      lib/fonts/fonts.o
  LD      fs/quota/built-in.o
  CC      fs/nls/nls_iso8859-1.o
  CC      fs/kernfs/inode.o
  CC      lib/lzo/lzo1x_compress.o
  CC      lib/xz/xz_dec_syms.o
  CC      lib/zlib_inflate/inffast.o
  CC      lib/syscall.o
  CC      drivers/clk/clk-conf.o
  CC      block/blk-exec.o
  CC      lib/nlattr.o
  CC      block/blk-merge.o
  CC      fs/ramfs/inode.o
  CC      lib/checksum.o
  LD      drivers/clk/bcm/built-in.o
  CC      fs/ntfs/aops.o
  CC      drivers/base/firmware.o
  CC      lib/fonts/font_8x8.o
  CC      drivers/base/init.o
  LD      fs/nls/built-in.o
  CC      drivers/base/map.o
  CC      lib/xz/xz_dec_stream.o
  CC      fs/proc/task_mmu.o
  CC      lib/fonts/font_8x16.o
  LD      fs/nfs_common/built-in.o
  CC      net/core/skbuff.o
  CC      fs/eventpoll.o
  CC      fs/sysfs/file.o
  CC      fs/notify/notification.o
  CC      fs/notify/group.o
  LD      lib/lz4/built-in.o
  CC      lib/atomic64.o
  CC      lib/dynamic_queue_limits.o
  LD      drivers/clk/built-in.o
  CC      drivers/base/devres.o
  CC      drivers/gpio/gpio-dwapb.o
  CC      lib/net_utils.o
  LD      drivers/idle/built-in.o
  CC      drivers/base/attribute_container.o
  CC      block/blk-softirq.o
  CC      lib/zlib_inflate/inflate.o
  CC      lib/argv_split.o
  CC      lib/zlib_inflate/infutil.o
  LD      lib/fonts/font.o
In file included from /home/kisskb/slave/src/fs/proc/task_mmu.c:21:0:
/home/kisskb/slave/src/arch/arc/include/asm/tlbflush.h:29:0: warning: "flush_pmd_tlb_range" redefined [enabled by default]
 #define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e)
 ^
In file included from /home/kisskb/slave/src/arch/arc/include/asm/pgtable.h:399:0,
                 from /home/kisskb/slave/src/include/linux/mm.h:68,
                 from /home/kisskb/slave/src/fs/proc/task_mmu.c:1:
/home/kisskb/slave/src/include/asm-generic/pgtable.h:799:0: note: this is the location of the previous definition
 #define flush_pmd_tlb_range(vma, addr, end) BUILD_BUG()
 ^
  CC      lib/cmdline.o
  CC      fs/lockd/clntproc.o
  LD      lib/fonts/built-in.o
  CC      lib/ctype.o
  CC      lib/lzo/lzo1x_decompress_safe.o
  CC      drivers/input/input.o
  CC      lib/dec_and_lock.o
  CC      drivers/base/transport_class.o
  CC      block/blk-timeout.o
  CC      lib/decompress.o
  LD      mm/built-in.o
  CC      drivers/base/topology.o
  CC      lib/decompress_bunzip2.o
  CC      block/blk-lib.o
  CC      fs/fat/inode.o
  CC      lib/decompress_inflate.o
  CC      lib/decompress_unlz4.o
  CC      fs/anon_inodes.o
  CC      lib/decompress_unlzma.o
  CC      fs/fat/misc.o
  CC      fs/kernfs/dir.o
  CC      drivers/base/container.o
  CC      net/ethernet/eth.o
  CC      fs/notify/inode_mark.o
  CC      lib/zlib_inflate/inftrees.o
  CC      fs/signalfd.o
  CC      lib/decompress_unlzo.o
  CC      lib/decompress_unxz.o
  CC      fs/ext4/bitmap.o
  LD      kernel/events/built-in.o
  CC      fs/sysfs/dir.o
  CC      fs/notify/mark.o
  CC      drivers/hid/hid-input.o
  LD      kernel/built-in.o
  CC      fs/fat/nfs.o
  CC      lib/xz/xz_dec_lzma2.o
  CC      fs/ramfs/file-mmu.o
  CC      lib/dma-noop.o
  CC      drivers/base/property.o
  LD      lib/lzo/lzo_compress.o
  CC      block/blk-mq.o
  CC      fs/timerfd.o
  LD      lib/lzo/lzo_decompress.o
  LD      lib/lzo/built-in.o
  CC      drivers/base/cacheinfo.o
  CC      drivers/base/devtmpfs.o
  CC      lib/dump_stack.o
  CC      fs/eventfd.o
  CC      lib/earlycpio.o
  CC      lib/zlib_inflate/inflate_syms.o
  CC      block/blk-mq-tag.o
  CC      fs/fat/namei_vfat.o
  CC      lib/extable.o
  LD      drivers/gpio/built-in.o
  CC      drivers/base/power/clock_ops.o
  CC      lib/fdt.o
  CC      lib/fdt_empty_tree.o
  LD      fs/ramfs/ramfs.o
  CC      lib/fdt_ro.o
  CC      drivers/input/serio/serio.o
  CC      fs/sysfs/symlink.o
  LD      fs/ramfs/built-in.o
  CC      fs/ntfs/attrib.o
  CC      fs/aio.o
  CC      lib/fdt_rw.o
  CC      lib/fdt_strerror.o
  CC      lib/fdt_sw.o
  CC      lib/fdt_wip.o
  CC      lib/flex_proportions.o
  CC      fs/fat/namei_msdos.o
  CC      lib/idr.o
  CC      fs/proc/inode.o
  CC      fs/notify/vfsmount_mark.o
  CC      drivers/base/regmap/regmap.o
  CC      block/blk-mq-sysfs.o
  CC      block/blk-mq-cpu.o
  LD      drivers/base/power/built-in.o
  CC      lib/int_sqrt.o
  CC      drivers/base/dma-mapping.o
  CC      lib/ioremap.o
  CC      drivers/base/regmap/regcache.o
  CC      drivers/base/firmware_class.o
  CC      fs/ext4/dir.o
  CC      lib/irq_regs.o
  CC      drivers/base/module.o
  CC      fs/locks.o
  CC      fs/binfmt_script.o
  LD      lib/zlib_inflate/zlib_inflate.o
  LD      lib/zlib_inflate/built-in.o
  CC      fs/nfs/dir.o
  CC      fs/jbd2/commit.o
  CC      lib/is_single_threaded.o
  CC      lib/klist.o
  CC      lib/kobject.o
  CC      fs/sysfs/mount.o
  CC      lib/kobject_uevent.o
  CC      lib/md5.o
  CC      lib/xz/xz_dec_bcj.o
  CC      lib/nmi_backtrace.o
  CC      fs/binfmt_elf.o
  CC      lib/plist.o
  LD      net/ethernet/built-in.o
  CC      fs/notify/fdinfo.o
  CC      fs/mbcache.o
  CC      fs/lockd/clntxdr.o
  CC      lib/proportions.o
  CC      fs/coredump.o
  CC      drivers/hid/hid-generic.o
  CC      lib/radix-tree.o
  CC      fs/drop_caches.o
  CC      fs/notify/dnotify/dnotify.o
  CC      block/blk-mq-cpumap.o
  CC      fs/kernfs/file.o
  CC      fs/sysfs/group.o
  CC      lib/ratelimit.o
  CC      block/ioctl.o
  CC      lib/rbtree.o
  LD      fs/notify/fanotify/built-in.o
In file included from /home/kisskb/slave/src/include/linux/elf.h:4:0,
                 from /home/kisskb/slave/src/include/linux/module.h:15,
                 from /home/kisskb/slave/src/fs/binfmt_elf.c:12:
/home/kisskb/slave/src/fs/binfmt_elf.c: In function 'load_elf_binary':
/home/kisskb/slave/src/arch/arc/include/asm/elf.h:58:29: warning: integer overflow in expression [-Woverflow]
 #define ELF_ET_DYN_BASE  (2 * TASK_SIZE / 3)
                             ^
/home/kisskb/slave/src/fs/binfmt_elf.c:919:16: note: in expansion of macro 'ELF_ET_DYN_BASE'
    load_bias = ELF_ET_DYN_BASE - vaddr;
                ^
  CC      drivers/input/serio/serport.o
  CC      lib/sha1.o
  LD      fs/fat/msdos.o
  CC      lib/seq_buf.o
  CC      block/genhd.o
  CC      lib/show_mem.o
  CC      fs/notify/inotify/inotify_fsnotify.o
  CC      block/scsi_ioctl.o
  CC      drivers/i2c/i2c-dev.o
  CC      block/partition-generic.o
  CC      block/ioprio.o
  CC      net/ipv4/route.o
  CC      lib/string.o
  CC      fs/ntfs/collate.o
  CC      fs/proc/root.o
  CC      drivers/input/input-compat.o
  CC      fs/ntfs/compress.o
In file included from /home/kisskb/slave/src/include/asm-generic/tlb.h:20:0,
                 from /home/kisskb/slave/src/arch/arc/include/asm/tlb.h:45,
                 from /home/kisskb/slave/src/arch/arc/include/asm/mmu_context.h:22,
                 from /home/kisskb/slave/src/fs/coredump.c:38:
/home/kisskb/slave/src/arch/arc/include/asm/tlbflush.h:29:0: warning: "flush_pmd_tlb_range" redefined [enabled by default]
 #define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e)
 ^
In file included from /home/kisskb/slave/src/arch/arc/include/asm/pgtable.h:399:0,
                 from /home/kisskb/slave/src/include/linux/mm.h:68,
                 from /home/kisskb/slave/src/fs/coredump.c:4:
/home/kisskb/slave/src/include/asm-generic/pgtable.h:799:0: note: this is the location of the previous definition
 #define flush_pmd_tlb_range(vma, addr, end) BUILD_BUG()
 ^
  CC      drivers/hid/usbhid/hid-core.o
  CC      net/core/datagram.o
  CC      lib/timerqueue.o
  LD      lib/xz/xz_dec.o
  CC      lib/vsprintf.o
  LD      lib/xz/built-in.o
  CC      drivers/base/regmap/regcache-rbtree.o
  GEN     lib/crc32table.h
  CC      lib/crc32.o
  CC      drivers/base/regmap/regcache-lzo.o
  LD      fs/fat/fat.o
  CC      block/badblocks.o
  CC      fs/proc/base.o
  CC      fs/proc/array.o
  CC      fs/proc/generic.o
  LD      fs/notify/dnotify/built-in.o
  LD      fs/sysfs/built-in.o
  CC      block/bsg.o
  CC      block/noop-iosched.o
  LD      fs/fat/vfat.o
  CC      fs/proc/fd.o
  CC      block/partitions/check.o
  LD      fs/fat/built-in.o
  CC      block/partitions/msdos.o
  CC      drivers/input/input-mt.o
  CC      fs/notify/inotify/inotify_user.o
  CC      drivers/input/ff-core.o
  CC      fs/ntfs/debug.o
  CC      fs/ext4/file.o
  CC      drivers/input/mousedev.o
  CC      fs/proc/proc_tty.o
  CC      fs/lockd/host.o
  CC      fs/lockd/svc.o
  CC      fs/proc/cmdline.o
  CC      drivers/input/serio/libps2.o
  CC      drivers/base/regmap/regcache-flat.o
  CC      block/deadline-iosched.o
  CC      block/cfq-iosched.o
  CC      drivers/base/regmap/regmap-mmio.o
  CC      fs/kernfs/symlink.o
  CC      fs/proc/consoles.o
  CC      fs/ntfs/dir.o
  LD      drivers/i2c/algos/built-in.o
In file included from /home/kisskb/slave/src/arch/arc/include/asm/bug.h:31:0,
                 from /home/kisskb/slave/src/include/linux/bug.h:4,
                 from /home/kisskb/slave/src/include/linux/thread_info.h:11,
                 from /home/kisskb/slave/src/include/asm-generic/preempt.h:4,
                 from arch/arc/include/generated/asm/preempt.h:1,
                 from /home/kisskb/slave/src/include/linux/preempt.h:59,
                 from /home/kisskb/slave/src/include/linux/spinlock.h:50,
                 from /home/kisskb/slave/src/include/linux/seqlock.h:35,
                 from /home/kisskb/slave/src/include/linux/time.h:5,
                 from /home/kisskb/slave/src/fs/proc/generic.c:12:
/home/kisskb/slave/src/fs/proc/generic.c: In function '__proc_create':
/home/kisskb/slave/src/include/asm-generic/bug.h:74:48: warning: 'fn' may be used uninitialized in this function [-Wmaybe-uninitialized]
 #define __WARN_printf(arg...) warn_slowpath_fmt(__FILE__, __LINE__, arg)
                                                ^
/home/kisskb/slave/src/fs/proc/generic.c:361:14: note: 'fn' was declared here
  const char *fn;
              ^
  CC      fs/proc/cpuinfo.o
  CC      fs/ntfs/file.o
  CC      drivers/i2c/busses/i2c-designware-core.o
  LD      drivers/i2c/muxes/built-in.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:409:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      drivers/i2c/busses/i2c-designware-platdrv.o
  CC      fs/proc/devices.o
  CC      fs/jbd2/recovery.o
  CC      block/partitions/efi.o
  CC      fs/proc/interrupts.o
  CC      fs/jbd2/checkpoint.o
  CC      fs/proc/loadavg.o
  CC      fs/proc/meminfo.o
  CC      fs/proc/stat.o
  LD      lib/built-in.o
  CC      fs/proc/uptime.o
/home/kisskb/slave/src/block/cfq-iosched.c: In function 'cfq_async_queue_prio':
/home/kisskb/slave/src/block/cfq-iosched.c:3793:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      fs/jbd2/revoke.o
  LD      fs/kernfs/built-in.o
  CC      drivers/input/evdev.o
  CC      fs/jbd2/journal.o
  LD      drivers/input/serio/built-in.o
  CC      fs/proc/version.o
  CC      drivers/hid/usbhid/hid-quirks.o
  CC      net/core/stream.o
  CC      fs/proc/softirqs.o
  CC      fs/proc/namespaces.o
  CC      drivers/irqchip/irq-dw-apb-ictl.o
  CC      drivers/input/keyboard/atkbd.o
  CC      drivers/irqchip/irqchip.o
  CC      fs/ntfs/index.o
  CC      fs/proc/self.o
  CC      fs/proc/thread_self.o
  CC      fs/proc/proc_sysctl.o
  CC      fs/lockd/svclock.o
  CC      net/core/scm.o
  CC      fs/ntfs/inode.o
  CC      fs/proc/proc_net.o
  CC      net/ipv4/inetpeer.o
/home/kisskb/slave/src/net/core/datagram.c: In function 'skb_recv_datagram':
/home/kisskb/slave/src/net/core/datagram.c:99:5: warning: 'last' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if (sk->sk_receive_queue.prev != skb)
     ^
/home/kisskb/slave/src/net/core/datagram.c:267:24: note: 'last' was declared here
  struct sk_buff *skb, *last;
                        ^
  LD      fs/notify/inotify/built-in.o
  CC      fs/proc/kmsg.o
  LD      fs/notify/built-in.o
  LD      drivers/i2c/busses/i2c-designware-platform.o
  CC      fs/proc/page.o
  LD      drivers/leds/built-in.o
  CC      fs/ntfs/mft.o
  CC      fs/nfs/file.o
  CC      fs/ntfs/mst.o
  CC      fs/nfs/getroot.o
/home/kisskb/slave/src/net/core/datagram.c: In function '__skb_recv_datagram':
/home/kisskb/slave/src/net/core/datagram.c:99:5: warning: 'last' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if (sk->sk_receive_queue.prev != skb)
     ^
/home/kisskb/slave/src/net/core/datagram.c:267:24: note: 'last' was declared here
  struct sk_buff *skb, *last;
                        ^
  CC      fs/ntfs/namei.o
  CC      net/core/gen_stats.o
  LD      drivers/lguest/built-in.o
  CC      fs/nfs/inode.o
  CC      drivers/input/mouse/psmouse-base.o
  CC      fs/lockd/svcshare.o
  CC      fs/ext4/fsync.o
  LD      drivers/irqchip/built-in.o
  LD      drivers/macintosh/built-in.o
  LD      drivers/input/input-core.o
  CC      fs/ext4/ialloc.o
  CC      fs/ext4/inode.o
  LD      drivers/base/regmap/built-in.o
  CC      fs/ext4/page-io.o
  LD      drivers/hid/usbhid/usbhid.o
  LD      drivers/base/built-in.o
  CC      drivers/mfd/syscon.o
  LD      drivers/hid/usbhid/built-in.o
  CC      fs/nfs/super.o
  CC      net/ipv4/protocol.o
  CC      fs/nfs/direct.o
  CC      fs/nfs/pagelist.o
  LD      drivers/media/common/b2c2/built-in.o
  CC      net/core/gen_estimator.o
  LD      drivers/misc/cb710/built-in.o
  CC      fs/ntfs/runlist.o
  CC      net/core/net_namespace.o
  CC      net/core/secure_seq.o
  LD      drivers/hid/hid.o
  LD      drivers/i2c/busses/built-in.o
  CC      fs/ntfs/super.o
  LD      drivers/media/common/saa7146/built-in.o
  LD      block/partitions/built-in.o
  LD      drivers/i2c/built-in.o
  LD      drivers/media/common/siano/built-in.o
  LD      drivers/misc/eeprom/built-in.o
  LD      drivers/misc/lis3lv02d/built-in.o
  LD      drivers/hid/built-in.o
  CC      fs/lockd/svcproc.o
  CC      fs/ext4/ioctl.o
  LD      drivers/media/common/built-in.o
  LD      drivers/misc/ti-st/built-in.o
  LD      drivers/nfc/built-in.o
  LD      drivers/misc/mic/bus/built-in.o
  CC      fs/ntfs/sysctl.o
  LD      drivers/media/firewire/built-in.o
  LD      drivers/nvme/host/built-in.o
  CC      drivers/net/mii.o
  CC      fs/ntfs/unistr.o
  LD      drivers/perf/built-in.o
  CC      drivers/mmc/card/block.o
  LD      drivers/misc/mic/built-in.o
  CC      fs/ntfs/upcase.o
  CC      drivers/net/Space.o
  LD      drivers/nvme/built-in.o
  CC      drivers/of/base.o
  LD      drivers/misc/built-in.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:409:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  LD      drivers/power/built-in.o
  LD      drivers/platform/built-in.o
  CC      net/core/flow_dissector.o
  LD      drivers/media/i2c/soc_camera/built-in.o
  LD      drivers/media/i2c/built-in.o
  CC      fs/nfs/read.o
  LD      drivers/pwm/built-in.o
  CC      net/core/sysctl_net_core.o
  CC      drivers/pps/pps.o
  LD      drivers/mfd/built-in.o
  CC      net/ipv4/ip_input.o
  CC      drivers/mmc/core/core.o
In file included from /home/kisskb/slave/src/fs/ext4/inode.c:41:0:
/home/kisskb/slave/src/fs/ext4/ext4_jbd2.h: In function 'ext4_inode_journal_mode':
/home/kisskb/slave/src/fs/ext4/ext4_jbd2.h:409:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      drivers/ptp/ptp_clock.o
  CC      drivers/reset/core.o
  CC      net/core/dev.o
  LD      drivers/soc/bcm/built-in.o
  LD      drivers/media/mmc/siano/built-in.o
  LD      drivers/soc/fsl/built-in.o
  AR      lib/lib.a
  CC      fs/ext4/namei.o
  CC      net/core/ethtool.o
  LD      drivers/media/mmc/built-in.o
  CC      drivers/pps/kapi.o
  LD      drivers/soc/built-in.o
  CC      drivers/pps/sysfs.o
  CC      fs/lockd/svcsubs.o
  CC      drivers/scsi/scsi.o
  CC      drivers/scsi/hosts.o
  CC      fs/ext4/super.o
  CC      net/ipv4/ip_fragment.o
  CC      drivers/tty/tty_io.o
  LD      drivers/media/pci/b2c2/built-in.o
  CC      fs/lockd/mon.o
  LD      drivers/media/pci/ddbridge/built-in.o
  LD      drivers/media/pci/dm1105/built-in.o
  LD      drivers/pps/clients/built-in.o
  LD      drivers/media/pci/mantis/built-in.o
  CC      drivers/net/loopback.o
  LD      drivers/input/keyboard/built-in.o
  LD      drivers/media/pci/netup_unidvb/built-in.o
  LD      drivers/pps/pps_core.o
  LD      drivers/pps/generators/built-in.o
  LD      drivers/media/pci/ngene/built-in.o
  LD      drivers/media/pci/pluto2/built-in.o
  CC      fs/lockd/xdr.o
  LD      drivers/media/pci/pt1/built-in.o
  LD      drivers/reset/built-in.o
  CC      net/core/dev_addr_lists.o
  LD      drivers/media/pci/pt3/built-in.o
  LD      drivers/pps/built-in.o
In file included from /home/kisskb/slave/src/include/linux/jbd2.h:26:0,
                 from /home/kisskb/slave/src/fs/jbd2/journal.c:28:
/home/kisskb/slave/src/fs/jbd2/journal.c: In function 'jbd2_journal_init_inode':
  CC      drivers/net/phy/phy.o
/home/kisskb/slave/src/include/linux/buffer_head.h:363:2: warning: 'blocknr' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return __getblk_gfp(bdev, block, size, 0);
  ^
/home/kisskb/slave/src/fs/jbd2/journal.c:1216:21: note: 'blocknr' was declared here
  unsigned long long blocknr;
                     ^
  LD      drivers/media/pci/saa7146/built-in.o
  CC      net/core/dst.o
  LD      drivers/net/ethernet/cadence/built-in.o
  LD      drivers/media/pci/smipcie/built-in.o
  CC      drivers/of/device.o
  LD      drivers/media/pci/ttpci/built-in.o
  LD      drivers/net/ethernet/netronome/built-in.o
  LD      drivers/net/ethernet/ezchip/built-in.o
  CC      fs/nfs/symlink.o
  LD      drivers/net/ethernet/qualcomm/built-in.o
  LD      drivers/video/backlight/built-in.o
  LD      drivers/media/pci/built-in.o
  CC      net/ipv4/ip_forward.o
  LD      drivers/net/ethernet/rocker/built-in.o
  LD      drivers/net/ethernet/renesas/built-in.o
  CC      drivers/usb/common/common.o
/home/kisskb/slave/src/net/core/ethtool.c: In function 'ethtool_get_feature_mask':
/home/kisskb/slave/src/net/core/ethtool.c:295:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  LD      drivers/net/ethernet/samsung/built-in.o
  LD      drivers/net/ethernet/synopsys/built-in.o
  CC      net/ipv4/ip_options.o
  CC      drivers/video/console/dummycon.o
/home/kisskb/slave/src/fs/ext4/inode.c: In function 'ext4_get_block_unwritten':
/home/kisskb/slave/src/fs/ext4/inode.c:561:5: warning: 'retval' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if (retval > 0 && map->m_flags & EXT4_MAP_MAPPED) {
     ^
/home/kisskb/slave/src/fs/ext4/inode.c:472:6: note: 'retval' was declared here
  int retval;
      ^
  CC      fs/nfs/unlink.o
  CC      drivers/ptp/ptp_chardev.o
/home/kisskb/slave/src/fs/ext4/inode.c: In function 'ext4_dio_get_block_overwrite':
/home/kisskb/slave/src/fs/ext4/inode.c:561:5: warning: 'retval' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if (retval > 0 && map->m_flags & EXT4_MAP_MAPPED) {
     ^
/home/kisskb/slave/src/fs/ext4/inode.c:472:6: note: 'retval' was declared here
  int retval;
      ^
  LD      drivers/media/platform/omap/built-in.o
/home/kisskb/slave/src/fs/ext4/inode.c: In function 'ext4_get_block':
/home/kisskb/slave/src/fs/ext4/inode.c:561:5: warning: 'retval' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if (retval > 0 && map->m_flags & EXT4_MAP_MAPPED) {
     ^
/home/kisskb/slave/src/fs/ext4/inode.c:472:6: note: 'retval' was declared here
  int retval;
      ^
  CC      fs/ext4/symlink.o
  CC      drivers/net/ethernet/stmicro/stmmac/stmmac_main.o
  LD      drivers/media/platform/built-in.o
  CC      drivers/scsi/scsi_ioctl.o
  LD      drivers/net/wireless/admtek/built-in.o
  LD      fs/proc/proc.o
  CC      drivers/input/mouse/synaptics.o
  CC      net/ipv4/ip_output.o
  LD      drivers/net/wireless/ath/built-in.o
In file included from /home/kisskb/slave/src/include/linux/jbd2.h:26:0,
                 from /home/kisskb/slave/src/fs/jbd2/journal.c:28:
/home/kisskb/slave/src/fs/jbd2/journal.c: In function 'jbd2_journal_get_descriptor_buffer':
/home/kisskb/slave/src/include/linux/buffer_head.h:370:2: warning: 'blocknr' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return __getblk_gfp(bdev, block, size, __GFP_MOVABLE);
  ^
/home/kisskb/slave/src/fs/jbd2/journal.c:813:21: note: 'blocknr' was declared here
  unsigned long long blocknr;
                     ^
  LD      fs/proc/built-in.o
/home/kisskb/slave/src/fs/ext4/inode.c: In function 'ext4_block_zero_page_range':
/home/kisskb/slave/src/fs/ext4/inode.c:561:5: warning: 'retval' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if (retval > 0 && map->m_flags & EXT4_MAP_MAPPED) {
     ^
/home/kisskb/slave/src/fs/ext4/inode.c:472:6: note: 'retval' was declared here
  int retval;
      ^
  LD      drivers/video/fbdev/omap2/omapfb/displays/built-in.o
  LD      drivers/net/wireless/atmel/built-in.o
  CC      net/core/netevent.o
  CC      drivers/mmc/card/queue.o
  CC      drivers/video/fbdev/core/fb_cmdline.o
  LD      fs/ntfs/ntfs.o
  LD      drivers/media/rc/keymaps/built-in.o
  CC      fs/ext4/hash.o
  LD      drivers/net/wireless/broadcom/built-in.o
  CC      drivers/video/console/fbcon.o
  LD      drivers/video/fbdev/omap2/omapfb/dss/built-in.o
  LD      fs/ntfs/built-in.o
  LD      block/built-in.o
  CC      drivers/tty/n_tty.o
  LD      drivers/net/wireless/cisco/built-in.o
  LD      drivers/usb/common/usb-common.o
  CC      fs/lockd/clnt4xdr.o
  CC      fs/nfs/write.o
  LD      drivers/media/rc/built-in.o
  CC      fs/lockd/xdr4.o
  LD      drivers/video/fbdev/omap2/omapfb/built-in.o
  LD      drivers/usb/common/built-in.o
  LD      drivers/net/wireless/intel/built-in.o
/home/kisskb/slave/src/fs/ext4/inode.c: In function 'ext4_dio_get_block_unwritten_async':
/home/kisskb/slave/src/fs/ext4/inode.c:561:5: warning: 'retval' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if (retval > 0 && map->m_flags & EXT4_MAP_MAPPED) {
     ^
/home/kisskb/slave/src/fs/ext4/inode.c:472:6: note: 'retval' was declared here
  int retval;
      ^
  CC      fs/lockd/svc4proc.o
  LD      drivers/net/wireless/intersil/built-in.o
  LD      drivers/net/wireless/marvell/built-in.o
  LD      drivers/media/tuners/built-in.o
  LD      drivers/video/fbdev/omap2/built-in.o
  CC      drivers/usb/host/ehci-hcd.o
  CC      net/ipv4/ip_sockglue.o
  CC      drivers/of/platform.o
  CC      fs/nfs/namespace.o
  LD      drivers/net/wireless/ralink/built-in.o
  LD      drivers/net/wireless/mediatek/built-in.o
  LD      drivers/net/wireless/realtek/built-in.o
  CC      net/core/neighbour.o
  CC      drivers/video/fbdev/core/fb_notify.o
/home/kisskb/slave/src/fs/ext4/inode.c: In function 'ext4_dio_get_block_unwritten_sync':
/home/kisskb/slave/src/fs/ext4/inode.c:561:5: warning: 'retval' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if (retval > 0 && map->m_flags & EXT4_MAP_MAPPED) {
     ^
/home/kisskb/slave/src/fs/ext4/inode.c:472:6: note: 'retval' was declared here
  int retval;
      ^
  CC      fs/lockd/procfs.o
  LD      drivers/net/wireless/st/built-in.o
  LD      drivers/net/wireless/rsi/built-in.o
  LD      drivers/net/wireless/ti/built-in.o
  LD      drivers/media/usb/b2c2/built-in.o
  CC      net/ipv4/inet_hashtables.o
  CC      drivers/usb/core/usb.o
  CC      drivers/scsi/scsicam.o
  CC      net/ipv4/inet_timewait_sock.o
  CC      drivers/scsi/scsi_error.o
  LD      drivers/net/wireless/zydas/built-in.o
  CC      fs/ext4/resize.o
  LD      drivers/media/usb/dvb-usb/built-in.o
  CC      net/ipv4/inet_connection_sock.o
/home/kisskb/slave/src/fs/ext4/inode.c: In function 'ext4_map_blocks':
/home/kisskb/slave/src/fs/ext4/inode.c:561:5: warning: 'retval' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if (retval > 0 && map->m_flags & EXT4_MAP_MAPPED) {
     ^
  LD      drivers/net/wireless/built-in.o
  CC      fs/nfs/mount_clnt.o
  LD      drivers/media/usb/dvb-usb-v2/built-in.o
  CC      net/core/rtnetlink.o
  CC      fs/nfs/nfstrace.o
In file included from /home/kisskb/slave/src/fs/ext4/inode.c:41:0:
/home/kisskb/slave/src/fs/ext4/inode.c: In function 'ext4_dio_get_block':
/home/kisskb/slave/src/fs/ext4/ext4_jbd2.h:315:21: warning: 'handle' may be used uninitialized in this function [-Wmaybe-uninitialized]
  __ext4_journal_stop(__func__, __LINE__, (handle))
                     ^
/home/kisskb/slave/src/fs/ext4/inode.c:783:12: note: 'handle' was declared here
  handle_t *handle;
            ^
  LD      drivers/media/usb/s2255/built-in.o
  LD      drivers/media/usb/siano/built-in.o
  CC      drivers/video/fbdev/core/fbmem.o
  CC      drivers/ptp/ptp_sysfs.o
/home/kisskb/slave/src/fs/ext4/inode.c: In function 'ext4_getblk':
/home/kisskb/slave/src/fs/ext4/inode.c:561:5: warning: 'retval' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if (retval > 0 && map->m_flags & EXT4_MAP_MAPPED) {
     ^
/home/kisskb/slave/src/fs/ext4/inode.c:472:6: note: 'retval' was declared here
  int retval;
      ^
  LD      drivers/media/usb/stkwebcam/built-in.o
  LD      drivers/media/usb/ttusb-budget/built-in.o
  CC      drivers/net/phy/phy_device.o
  CC      fs/nfs/sysctl.o
  LD      fs/jbd2/jbd2.o
  LD      drivers/media/usb/ttusb-dec/built-in.o
  LD      drivers/media/usb/zr364xx/built-in.o
  CC      net/core/utils.o
  LD      fs/jbd2/built-in.o
  CC      drivers/usb/core/hub.o
  LD      drivers/media/usb/built-in.o
  CC      fs/ext4/extents.o
  CC      drivers/video/logo/logo.o
  CC      fs/ext4/ext4_jbd2.o
  CC      net/ipv6/addrconf_core.o
  LD      drivers/media/built-in.o
  CC      drivers/of/fdt.o
  CC      fs/nfs/nfs2super.o
  CC      drivers/of/fdt_address.o
  CC      fs/nfs/proc.o
  CC      drivers/scsi/scsi_lib.o
  LOGO    drivers/video/logo/logo_superh_mono.c
  CC      fs/nfs/nfs2xdr.o
  CC      fs/nfs/nfs3super.o
  LOGO    drivers/video/logo/logo_linux_mono.c
  CC      net/ipv4/tcp.o
  CC      net/core/link_watch.o
  LOGO    drivers/video/logo/logo_superh_vga16.c
  LOGO    drivers/video/logo/clut_vga16.c
  CC      drivers/usb/core/hcd.o
  LOGO    drivers/video/logo/logo_linux_vga16.c
  LOGO    drivers/video/logo/logo_blackfin_vga16.c
  LOGO    drivers/video/logo/logo_spe_clut224.c
  CC      drivers/of/address.o
  LOGO    drivers/video/logo/logo_mac_clut224.c
  LOGO    drivers/video/logo/logo_superh_clut224.c
  LOGO    drivers/video/logo/logo_sun_clut224.c
  LOGO    drivers/video/logo/logo_linux_clut224.c
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:409:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  LOGO    drivers/video/logo/logo_parisc_clut224.c
  CC      net/ipv4/tcp_input.o
  LOGO    drivers/video/logo/logo_blackfin_clut224.c
  CC      fs/nfs/nfs3client.o
  LOGO    drivers/video/logo/logo_dec_clut224.c
  CC      fs/nfs/nfs3proc.o
  LD      drivers/ptp/ptp.o
  CC      drivers/input/mouse/focaltech.o
  LOGO    drivers/video/logo/logo_m32r_clut224.c
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:409:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  LD      drivers/ptp/built-in.o
  CC      drivers/of/irq.o
  LOGO    drivers/video/logo/logo_sgi_clut224.c
  CC      fs/nfs/nfs3xdr.o
  LD      fs/lockd/lockd.o
  CC      drivers/usb/core/urb.o
  LD      drivers/video/logo/built-in.o
  LD      fs/lockd/built-in.o
  CC      drivers/input/mouse/alps.o
  CC      drivers/usb/core/message.o
  CC      drivers/input/mouse/byd.o
/home/kisskb/slave/src/net/core/neighbour.c: In function 'neigh_sysctl_register':
/home/kisskb/slave/src/net/core/neighbour.c:3180:10: warning: 'p_name' may be used uninitialized in this function [-Wmaybe-uninitialized]
  snprintf(neigh_path, sizeof(neigh_path), "net/%s/neigh/%s",
          ^
  CC      drivers/mmc/core/bus.o
  CC      fs/ext4/migrate.o
  CC      net/core/filter.o
  LD      drivers/mmc/card/mmc_block.o
  CC      net/ipv6/exthdrs_core.o
  LD      drivers/mmc/card/built-in.o
  CC      drivers/mmc/host/sdhci.o
  CC      drivers/mmc/host/dw_mmc.o
  CC      net/core/sock_diag.o
  CC      net/core/dev_ioctl.o
  CC      net/ipv6/ip6_checksum.o
  CC      drivers/input/mouse/logips2pp.o
/home/kisskb/slave/src/drivers/usb/core/hub.c: In function 'hub_port_reset':
/home/kisskb/slave/src/drivers/usb/core/hub.c:2767:16: warning: 'portchange' may be used uninitialized in this function [-Wmaybe-uninitialized]
    (portchange & USB_PORT_STAT_C_CONNECTION))
                ^
/home/kisskb/slave/src/drivers/usb/core/hub.c:2718:6: note: 'portchange' was declared here
  u16 portchange;
      ^
/home/kisskb/slave/src/drivers/usb/core/hub.c:2740:20: warning: 'portstatus' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (!(portstatus & USB_PORT_STAT_RESET))
                    ^
/home/kisskb/slave/src/drivers/usb/core/hub.c:2717:6: note: 'portstatus' was declared here
  u16 portstatus;
      ^
  CC      drivers/mmc/core/host.o
  CC      drivers/input/mouse/trackpoint.o
  CC      net/ipv4/tcp_output.o
  CC      drivers/of/of_net.o
  CC      drivers/of/of_mdio.o
  CC      net/ipv4/tcp_timer.o
  CC      net/ipv4/tcp_ipv4.o
  CC      drivers/scsi/scsi_common.o
  CC      net/ipv4/tcp_minisocks.o
  CC      drivers/tty/tty_ioctl.o
  CC      net/ipv6/ip6_icmp.o
  CC      drivers/net/phy/mdio_bus.o
  CC      drivers/net/phy/mdio_device.o
  CC      net/ipv4/tcp_cong.o
  CC      drivers/video/fbdev/core/fbmon.o
  LD      fs/nfs/nfsv2.o
  CC      drivers/scsi/scsi_lib_dma.o
  CC      drivers/scsi/scsi_scan.o
  CC      drivers/input/mouse/touchkit_ps2.o
  CC      drivers/usb/core/driver.o
  CC      drivers/usb/core/config.o
  CC      drivers/tty/tty_ldisc.o
  CC      fs/ext4/mballoc.o
  CC      fs/ext4/block_validity.o
  CC      drivers/usb/core/file.o
  CC      net/ipv6/output_core.o
  CC      net/core/tso.o
  CC      drivers/input/mouse/cypress_ps2.o
  CC      net/core/sock_reuseport.o
  CC      drivers/mmc/core/mmc.o
  CC      drivers/input/mouse/sermouse.o
  CC      fs/ext4/move_extent.o
  CC      net/ipv6/protocol.o
  CC      net/core/flow.o
  LD      drivers/of/built-in.o
  CC      drivers/net/phy/national.o
  CC      drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.o
  CC      drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.o
  CC      drivers/video/fbdev/core/fbcmap.o
  CC      drivers/scsi/scsi_sysfs.o
  CC      net/ipv6/ip6_offload.o
  CC      drivers/usb/core/buffer.o
  CC      fs/ext4/mmp.o
  LD      drivers/net/phy/libphy.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:409:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      drivers/usb/core/sysfs.o
  CC      drivers/tty/tty_buffer.o
  CC      net/ipv4/tcp_metrics.o
  CC      drivers/usb/core/endpoint.o
/home/kisskb/slave/src/fs/ext4/inode.c: In function 'ext4_get_next_extent':
/home/kisskb/slave/src/fs/ext4/inode.c:5628:6: warning: 'retval' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (ret < 0)
      ^
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:409:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      drivers/input/mouse/synaptics_usb.o
  CC      drivers/scsi/scsi_devinfo.o
  CC      drivers/usb/core/devio.o
  CC      fs/ext4/indirect.o
  CC      net/ipv6/tcpv6_offload.o
  LD      fs/nfs/nfs.o
  CC      net/ipv6/udp_offload.o
In file included from /home/kisskb/slave/src/fs/ext4/extents.c:44:0:
/home/kisskb/slave/src/fs/ext4/extents.c: In function 'ext4_ext_convert_to_initialized.isra.60':
/home/kisskb/slave/src/fs/ext4/ext4_extents.h:224:8: warning: '*((void *)&zero_ex+8)' may be used uninitialized in this function [-Wmaybe-uninitialized]
  block = le32_to_cpu(ex->ee_start_lo);
        ^
/home/kisskb/slave/src/fs/ext4/extents.c:3410:21: note: '*((void *)&zero_ex+8)' was declared here
  struct ext4_extent zero_ex;
                     ^
In file included from /home/kisskb/slave/src/fs/ext4/extents.c:44:0:
/home/kisskb/slave/src/fs/ext4/ext4_extents.h:225:12: warning: '*((void *)&zero_ex+6)' may be used uninitialized in this function [-Wmaybe-uninitialized]
  block |= ((ext4_fsblk_t) le16_to_cpu(ex->ee_start_hi) << 31) << 1;
            ^
/home/kisskb/slave/src/fs/ext4/extents.c:3410:21: note: '*((void *)&zero_ex+6)' was declared here
  struct ext4_extent zero_ex;
                     ^
/home/kisskb/slave/src/fs/ext4/extents.c:3129:2: warning: 'zero_ex.ee_block' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return ext4_es_insert_extent(inode, ee_block, ee_len, ee_pblock,
  ^
/home/kisskb/slave/src/fs/ext4/extents.c:3410:21: note: 'zero_ex.ee_block' was declared here
  struct ext4_extent zero_ex;
                     ^
  LD      fs/nfs/nfsv3.o
  CC      fs/ext4/extents_status.o
  CC      net/core/net-sysfs.o
  LD      fs/nfs/built-in.o
  CC      net/core/net-procfs.o
  CC      net/ipv4/tcp_fastopen.o
  CC      drivers/usb/core/notify.o
  CC      drivers/tty/tty_port.o
  CC      drivers/tty/tty_mutex.o
  CC      drivers/usb/core/generic.o
  LD      drivers/net/phy/built-in.o
  CC      drivers/usb/core/quirks.o
  CC      net/core/ptp_classifier.o
  CC      drivers/usb/core/devices.o
  CC      drivers/usb/core/port.o
  CC      net/ipv4/tcp_recovery.o
  CC      drivers/usb/core/of.o
  CC      drivers/net/ethernet/stmicro/stmmac/ring_mode.o
  CC      net/ipv4/tcp_offload.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:409:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      drivers/video/fbdev/core/fbsysfs.o
  CC      drivers/video/fbdev/core/modedb.o
  CC      fs/ext4/xattr.o
  CC      drivers/video/fbdev/core/fbcvt.o
  CC      fs/ext4/xattr_user.o
  CC      drivers/net/ethernet/stmicro/stmmac/chain_mode.o
  CC      net/ipv6/exthdrs_offload.o
  CC      drivers/scsi/scsi_sysctl.o
  LD      drivers/input/mouse/psmouse.o
  CC      drivers/tty/tty_ldsem.o
  CC      drivers/tty/pty.o
  CC      drivers/video/console/bitblit.o
  CC      drivers/usb/host/ehci-platform.o
  CC      drivers/video/console/softcursor.o
  CC      fs/ext4/xattr_trusted.o
  CC      fs/ext4/inline.o
  CC      net/key/af_key.o
  LD      drivers/input/mouse/built-in.o
  CC      fs/ext4/readpage.o
/home/kisskb/slave/src/fs/ext4/extents.c: In function 'ext4_ext_map_blocks':
/home/kisskb/slave/src/fs/ext4/extents.c:2320:14: warning: 'len' may be used uninitialized in this function [-Wmaybe-uninitialized]
  ext4_lblk_t len;
              ^
  LD      drivers/input/built-in.o
  CC      net/netlink/af_netlink.o
  CC      net/netlink/genetlink.o
In file included from /home/kisskb/slave/src/net/ipv4/tcp_metrics.c:16:0:
/home/kisskb/slave/src/net/ipv4/tcp_metrics.c: In function 'tcp_metrics_nl_cmd_get':
/home/kisskb/slave/src/include/net/inetpeer.h:141:6: warning: 'saddr.<U85f0>.key[3]' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (a->key[i] == b->key[i])
      ^
/home/kisskb/slave/src/net/ipv4/tcp_metrics.c:982:23: note: 'saddr.<U85f0>.key[3]' was declared here
  struct inetpeer_addr saddr, daddr;
                       ^
In file included from /home/kisskb/slave/src/net/ipv4/tcp_metrics.c:16:0:
/home/kisskb/slave/src/include/net/inetpeer.h:141:6: warning: 'saddr.<U85f0>.key[2]' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (a->key[i] == b->key[i])
      ^
/home/kisskb/slave/src/net/ipv4/tcp_metrics.c:982:23: note: 'saddr.<U85f0>.key[2]' was declared here
  struct inetpeer_addr saddr, daddr;
                       ^
In file included from /home/kisskb/slave/src/net/ipv4/tcp_metrics.c:16:0:
/home/kisskb/slave/src/include/net/inetpeer.h:141:26: warning: 'saddr.<U85f0>.a4.vif' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (a->key[i] == b->key[i])
                          ^
/home/kisskb/slave/src/net/ipv4/tcp_metrics.c:982:23: note: 'saddr.<U85f0>.a4.vif' was declared here
  struct inetpeer_addr saddr, daddr;
                       ^
In file included from /home/kisskb/slave/src/net/ipv4/tcp_metrics.c:16:0:
/home/kisskb/slave/src/include/net/inetpeer.h:141:6: warning: 'saddr.<U85f0>.a4.addr' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (a->key[i] == b->key[i])
      ^
/home/kisskb/slave/src/net/ipv4/tcp_metrics.c:982:23: note: 'saddr.<U85f0>.a4.addr' was declared here
  struct inetpeer_addr saddr, daddr;
                       ^
In file included from /home/kisskb/slave/src/net/ipv4/tcp_metrics.c:16:0:
/home/kisskb/slave/src/include/net/inetpeer.h:141:6: warning: 'daddr.in6_u.u6_addr32[3]' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (a->key[i] == b->key[i])
      ^
/home/kisskb/slave/src/net/ipv4/tcp_metrics.c:982:30: note: 'daddr.in6_u.u6_addr32[3]' was declared here
  struct inetpeer_addr saddr, daddr;
                              ^
In file included from /home/kisskb/slave/src/net/ipv4/tcp_metrics.c:16:0:
/home/kisskb/slave/src/include/net/inetpeer.h:141:6: warning: 'daddr.in6_u.u6_addr32[2]' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (a->key[i] == b->key[i])
      ^
/home/kisskb/slave/src/net/ipv4/tcp_metrics.c:982:30: note: 'daddr.in6_u.u6_addr32[2]' was declared here
  struct inetpeer_addr saddr, daddr;
                              ^
  CC      fs/ext4/sysfs.o
  CC      net/packet/af_packet.o
  CC      drivers/scsi/scsi_proc.o
In file included from /home/kisskb/slave/src/net/ipv4/tcp_metrics.c:16:0:
/home/kisskb/slave/src/net/ipv4/tcp_metrics.c: In function 'tcp_metrics_nl_cmd_del':
/home/kisskb/slave/src/include/net/inetpeer.h:141:6: warning: 'daddr.<U85f0>.a4.addr' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (a->key[i] == b->key[i])
      ^
/home/kisskb/slave/src/net/ipv4/tcp_metrics.c:1063:30: note: 'daddr.<U85f0>.a4.addr' was declared here
  struct inetpeer_addr saddr, daddr;
                              ^
/home/kisskb/slave/src/net/ipv4/tcp_metrics.c:1080:7: warning: 'hash' may be used uninitialized in this function [-Wmaybe-uninitialized]
  hash ^= net_hash_mix(net);
       ^
In file included from /home/kisskb/slave/src/net/ipv4/tcp_metrics.c:16:0:
/home/kisskb/slave/src/include/net/inetpeer.h:141:6: warning: 'saddr.<U85f0>.key[3]' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (a->key[i] == b->key[i])
      ^
/home/kisskb/slave/src/net/ipv4/tcp_metrics.c:1063:23: note: 'saddr.<U85f0>.key[3]' was declared here
  struct inetpeer_addr saddr, daddr;
                       ^
In file included from /home/kisskb/slave/src/net/ipv4/tcp_metrics.c:16:0:
/home/kisskb/slave/src/include/net/inetpeer.h:141:6: warning: 'saddr.<U85f0>.key[2]' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (a->key[i] == b->key[i])
      ^
/home/kisskb/slave/src/net/ipv4/tcp_metrics.c:1063:23: note: 'saddr.<U85f0>.key[2]' was declared here
  struct inetpeer_addr saddr, daddr;
                       ^
In file included from /home/kisskb/slave/src/net/ipv4/tcp_metrics.c:16:0:
/home/kisskb/slave/src/include/net/inetpeer.h:141:6: warning: 'daddr.in6_u.u6_addr32[3]' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (a->key[i] == b->key[i])
      ^
/home/kisskb/slave/src/net/ipv4/tcp_metrics.c:1063:30: note: 'daddr.in6_u.u6_addr32[3]' was declared here
  struct inetpeer_addr saddr, daddr;
                              ^
In file included from /home/kisskb/slave/src/net/ipv4/tcp_metrics.c:16:0:
/home/kisskb/slave/src/include/net/inetpeer.h:141:6: warning: 'daddr.in6_u.u6_addr32[2]' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (a->key[i] == b->key[i])
      ^
/home/kisskb/slave/src/net/ipv4/tcp_metrics.c:1063:30: note: 'daddr.in6_u.u6_addr32[2]' was declared here
  struct inetpeer_addr saddr, daddr;
                              ^
  CC      drivers/scsi/scsi_trace.o
  CC      drivers/scsi/scsi_logging.o
  CC      drivers/scsi/sd.o
  CC      drivers/usb/host/ohci-hcd.o
  CC      drivers/net/ethernet/stmicro/stmmac/dwmac_lib.o
  CC      drivers/mmc/core/mmc_ops.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:409:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  LD      drivers/tty/ipwireless/built-in.o
  CC      drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.o
  CC      drivers/net/ethernet/stmicro/stmmac/dwmac100_core.o
  CC      drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.o
  LD      drivers/usb/misc/built-in.o
  CC      drivers/tty/serial/serial_core.o
  LD      net/ipv6/built-in.o
  CC      net/ipv4/datagram.o
  CC      drivers/tty/serial/earlycon.o
  CC      drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.o
  CC      drivers/mmc/host/dw_mmc-pltfm.o
  CC      drivers/net/ethernet/stmicro/stmmac/enh_desc.o
  CC      net/sched/sch_generic.o
  CC      net/ipv4/raw.o
  CC      drivers/tty/vt/vt_ioctl.o
  LD      drivers/video/fbdev/core/fb.o
  CC      drivers/usb/phy/of.o
  LD      drivers/video/fbdev/core/built-in.o
  CC      net/ipv4/udp.o
  CC      drivers/tty/vt/vc_screen.o
  LD      drivers/video/fbdev/built-in.o
  CC      drivers/tty/serial/8250/8250_core.o
  CC      drivers/tty/serial/8250/8250_port.o
  CC      drivers/mmc/host/sdhci-pltfm.o
  CC      drivers/usb/host/ohci-platform.o
  CC      net/ipv4/udplite.o
  CC      net/ipv4/udp_offload.o
  CC      net/ipv4/arp.o
  CC      net/ipv4/icmp.o
  CC      drivers/usb/storage/scsiglue.o
  CC      net/sunrpc/clnt.o
  CC      net/sunrpc/xprt.o
  CC      drivers/usb/storage/protocol.o
  CC      net/sunrpc/socklib.o
  CC      drivers/usb/storage/transport.o
  LD      drivers/usb/phy/built-in.o
  CC      net/sunrpc/xprtsock.o
  CC      drivers/net/ethernet/stmicro/stmmac/norm_desc.o
  CC      drivers/net/ethernet/stmicro/stmmac/mmc_core.o
  CC      drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.o
/home/kisskb/slave/src/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq':
/home/kisskb/slave/src/drivers/tty/serial/8250/8250_core.c:250:10: warning: 'i' may be used uninitialized in this function [-Wmaybe-uninitialized]
  BUG_ON(i->head == NULL);
          ^
/home/kisskb/slave/src/drivers/tty/serial/8250/8250_core.c:235:19: note: 'i' was declared here
  struct irq_info *i;
                   ^
  CC      net/sunrpc/sched.o
  LD      drivers/video/console/built-in.o
  LD      drivers/video/built-in.o
  CC      drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.o
  CC      net/unix/af_unix.o
  LD      drivers/mmc/host/built-in.o
  CC      net/unix/garbage.o
  LD      drivers/scsi/scsi_mod.o
  LD      net/core/built-in.o
  CC      net/unix/sysctl_net_unix.o
  CC      drivers/usb/storage/usb.o
  CC      drivers/mmc/core/sd.o
  CC      drivers/net/ethernet/stmicro/stmmac/stmmac_platform.o
  CC      drivers/net/ethernet/stmicro/stmmac/dwmac-generic.o
  CC      drivers/usb/storage/initializers.o
  LD      net/wireless/built-in.o
  CC      net/sysctl_net.o
  CC      drivers/mmc/core/sd_ops.o
  CC      drivers/tty/vt/selection.o
  CC      net/ipv4/devinet.o
  CC      drivers/tty/vt/keyboard.o
  CC      net/sunrpc/auth.o
  CC      net/xfrm/xfrm_policy.o
  CC      net/xfrm/xfrm_state.o
  CC      drivers/tty/serial/8250/8250_early.o
/home/kisskb/slave/src/drivers/usb/storage/transport.c: In function 'usb_stor_bulk_transfer_sg':
/home/kisskb/slave/src/drivers/usb/storage/transport.c:499:15: warning: 'partial' may be used uninitialized in this function [-Wmaybe-uninitialized]
   length_left -= partial;
               ^
  CC      drivers/tty/vt/consolemap.o
  CC      drivers/usb/storage/sierra_ms.o
  CC      drivers/tty/serial/8250/8250_dw.o
/home/kisskb/slave/src/drivers/usb/storage/transport.c: In function 'usb_stor_bulk_srb':
/home/kisskb/slave/src/drivers/usb/storage/transport.c:473:40: warning: 'partial' may be used uninitialized in this function [-Wmaybe-uninitialized]
  scsi_set_resid(srb, scsi_bufflen(srb) - partial);
                                        ^
  CC      net/ipv4/igmp.o
  CC      net/ipv4/af_inet.o
  CC      drivers/usb/storage/option_ms.o
  LD      drivers/usb/core/usbcore.o
  CC      net/ipv4/fib_frontend.o
  CC      drivers/usb/storage/usual-tables.o
  LD      drivers/usb/core/built-in.o
  CC      net/sunrpc/auth_null.o
  CC      net/ipv4/fib_semantics.o
  CC      net/sunrpc/auth_unix.o
  CC      net/ipv4/fib_trie.o
  CC      net/ipv4/inet_fragment.o
  CC      net/sched/sch_mq.o
  LD      drivers/net/ethernet/stmicro/stmmac/stmmac.o
  CC      net/ipv4/ping.o
  CONMK   drivers/tty/vt/consolemap_deftbl.c
  CC      net/ipv4/ip_tunnel_core.o
  CC      drivers/tty/vt/vt.o
  LD      drivers/net/ethernet/stmicro/stmmac/stmmac-platform.o
  CC      drivers/tty/serial/8250/8250_of.o
  SHIPPED drivers/tty/vt/defkeymap.c
  LD      drivers/net/ethernet/stmicro/stmmac/built-in.o
  CC      drivers/tty/vt/consolemap_deftbl.o
  LD      drivers/tty/serial/8250/8250.o
  CC      net/ipv4/gre_offload.o
  CC      drivers/mmc/core/sdio.o
  LD      drivers/net/ethernet/stmicro/built-in.o
  CC      net/ipv4/sysctl_net_ipv4.o
  CC      drivers/tty/vt/defkeymap.o
/home/kisskb/slave/src/net/ipv4/tcp_input.c: In function 'tcp_data_queue':
/home/kisskb/slave/src/net/ipv4/tcp_input.c:4273:49: warning: array subscript is above array bounds [-Warray-bounds]
     tp->selective_acks[i-1] = tp->selective_acks[i];
                                                 ^
  LD      drivers/net/ethernet/built-in.o
  CC      net/ipv4/proc.o
  LD      drivers/usb/host/built-in.o
  CC      net/xfrm/xfrm_input.o
  CC      net/xfrm/xfrm_hash.o
  CC      net/ipv4/ipconfig.o
  CC      net/xfrm/xfrm_output.o
  LD      drivers/net/built-in.o
  LD      drivers/usb/storage/usb-storage.o
  CC      net/sunrpc/auth_generic.o
  LD      drivers/usb/storage/built-in.o
  CC      net/ipv4/inet_diag.o
  CC      net/sunrpc/svc.o
  LD      drivers/usb/built-in.o
  CC      net/sunrpc/svcsock.o
  CC      net/xfrm/xfrm_sysctl.o
  CC      net/sunrpc/svcauth.o
  CC      net/ipv4/tcp_diag.o
  CC      net/ipv4/tcp_cubic.o
  CC      net/sunrpc/svcauth_unix.o
  CC      net/ipv4/xfrm4_policy.o
  CC      drivers/mmc/core/sdio_ops.o
  CC      net/xfrm/xfrm_replay.o
  CC      net/sunrpc/addr.o
  CC      net/ipv4/xfrm4_state.o
  CC      net/sunrpc/rpcb_clnt.o
  CC      net/sunrpc/timer.o
  CC      drivers/mmc/core/sdio_bus.o
  LD      drivers/tty/serial/8250/8250_base.o
/home/kisskb/slave/src/net/ipv4/ping.c: In function 'ping_err':
/home/kisskb/slave/src/net/ipv4/ping.c:561:37: 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:534:3: warning: 'type' may be used uninitialized in this function [-Wmaybe-uninitialized]
   switch (type) {
   ^
/home/kisskb/slave/src/net/ipv4/ping.c:515:48: warning: 'icmph' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if (!ping_supported(family, icmph->type, icmph->code))
                                                ^
  LD      drivers/tty/serial/8250/built-in.o
/home/kisskb/slave/src/net/ipv4/ping.c: In function 'ping_common_sendmsg':
/home/kisskb/slave/src/net/ipv4/ping.c:692:21: warning: 'type' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if (!ping_supported(family, type, code))
                     ^
/home/kisskb/slave/src/net/ipv4/ping.c:478:63: 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:660:11: note: 'code' was declared here
  u8 type, code;
           ^
  LD      drivers/tty/serial/built-in.o
  CC      net/ipv4/xfrm4_input.o
  LD      net/sched/built-in.o
  LD      net/netlink/built-in.o
  CC      drivers/mmc/core/sdio_cis.o
  CC      net/ipv4/xfrm4_output.o
  CC      drivers/mmc/core/sdio_io.o
  CC      net/ipv4/xfrm4_protocol.o
/home/kisskb/slave/src/net/packet/af_packet.c: In function 'tpacket_rcv':
/home/kisskb/slave/src/net/packet/af_packet.c:2159:33: warning: 'hdrlen' may be used uninitialized in this function [-Wmaybe-uninitialized]
  unsigned short macoff, netoff, hdrlen;
                                 ^
  CC      net/sunrpc/xdr.o
  CC      drivers/mmc/core/sdio_irq.o
  CC      net/sunrpc/sunrpc_syms.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:52:
/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:175:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
  CC      net/sunrpc/cache.o
  CC      drivers/mmc/core/quirks.o
  CC      net/sunrpc/rpc_pipe.o
  CC      net/xfrm/xfrm_algo.o
  CC      net/sunrpc/svc_xprt.o
/home/kisskb/slave/src/net/unix/af_unix.c: In function 'unix_bind':
/home/kisskb/slave/src/net/unix/af_unix.c:1036:20: warning: 'hash' may be used uninitialized in this function [-Wmaybe-uninitialized]
  addr->hash = hash ^ sk->sk_type;
                    ^
  CC      net/sunrpc/sysctl.o
  CC      net/sunrpc/stats.o
  CC      drivers/mmc/core/slot-gpio.o
  CC      drivers/mmc/core/pwrseq.o
  CC      drivers/mmc/core/pwrseq_simple.o
  CC      drivers/mmc/core/pwrseq_emmc.o
/home/kisskb/slave/src/net/sunrpc/svcsock.c: In function 'svc_setup_socket':
/home/kisskb/slave/src/net/sunrpc/svcsock.c:779:6: 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:746:18: note: 'optname' was declared here
  int err, level, optname, one = 1;
                  ^
/home/kisskb/slave/src/net/sunrpc/svcsock.c:779:6: 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:746:11: note: 'level' was declared here
  int err, level, optname, one = 1;
           ^
/home/kisskb/slave/src/net/unix/af_unix.c: In function 'unix_stream_connect':
/home/kisskb/slave/src/net/unix/af_unix.c:1251:8: warning: 'hash' may be used uninitialized in this function [-Wmaybe-uninitialized]
  other = unix_find_other(net, sunaddr, addr_len, sk->sk_type, hash, &err);
        ^
  LD      drivers/scsi/sd_mod.o
  LD      drivers/scsi/built-in.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:282:12: warning: 'sin6' may be used uninitialized in this function [-Wmaybe-uninitialized]
  ip.m_addr = *addr;
            ^
/home/kisskb/slave/src/net/sunrpc/svcauth_unix.c:658:23: note: 'sin6' was declared here
  struct sockaddr_in6 *sin6, sin6_storage;
                       ^
/home/kisskb/slave/src/net/unix/af_unix.c: In function 'unix_dgram_connect':
/home/kisskb/slave/src/net/unix/af_unix.c:1130:9: warning: 'hash' may be used uninitialized in this function [-Wmaybe-uninitialized]
   other = unix_find_other(net, sunaddr, alen, sock->type, hash, &err);
         ^
  LD      fs/ext4/ext4.o
  LD      fs/ext4/built-in.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:1599:7: 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:1581:18: note: 'dst_ops' was declared here
  struct dst_ops *dst_ops;
                  ^
/home/kisskb/slave/src/net/unix/af_unix.c: In function 'unix_seqpacket_sendmsg':
/home/kisskb/slave/src/net/unix/af_unix.c:1721:9: warning: 'hash' may be used uninitialized in this function [-Wmaybe-uninitialized]
   other = unix_find_other(net, sunaddr, namelen, sk->sk_type,
         ^
/home/kisskb/slave/src/net/unix/af_unix.c:1648:15: note: 'hash' was declared here
  unsigned int hash;
               ^
  LD      fs/built-in.o
  LD      net/key/built-in.o
  LD      drivers/mmc/core/mmc_core.o
  LD      drivers/mmc/core/built-in.o
/home/kisskb/slave/src/net/ipv4/fib_trie.c: In function 'fib_trie_unmerge':
/home/kisskb/slave/src/net/ipv4/fib_trie.c:909:11: warning: 'local_tp' may be used uninitialized in this function [-Wmaybe-uninitialized]
  while (tn->slen < l->slen) {
           ^
/home/kisskb/slave/src/net/ipv4/fib_trie.c:1696:39: note: 'local_tp' was declared here
   struct key_vector *local_l = NULL, *local_tp;
                                       ^
/home/kisskb/slave/src/net/sunrpc/xdr.c: In function 'xdr_encode_word':
/home/kisskb/slave/src/net/sunrpc/xdr.c:1153:8: warning: 'subbuf.tail[0].iov_base' may be used uninitialized in this function [-Wmaybe-uninitialized]
  memcpy(subbuf->tail[0].iov_base, obj, this_len);
        ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1159:17: note: 'subbuf.tail[0].iov_base' was declared here
  struct xdr_buf subbuf;
                 ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1149:17: warning: 'subbuf.page_base' may be used uninitialized in this function [-Wmaybe-uninitialized]
   _copy_to_pages(subbuf->pages, subbuf->page_base, obj, this_len);
                 ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1159:17: note: 'subbuf.page_base' was declared here
  struct xdr_buf subbuf;
                 ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1149:17: warning: 'subbuf.pages' may be used uninitialized in this function [-Wmaybe-uninitialized]
   _copy_to_pages(subbuf->pages, subbuf->page_base, obj, this_len);
                 ^
  LD      drivers/mmc/built-in.o
/home/kisskb/slave/src/net/sunrpc/xdr.c:1159:17: note: 'subbuf.pages' was declared here
  struct xdr_buf subbuf;
                 ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1144:8: warning: 'subbuf.head[0].iov_base' may be used uninitialized in this function [-Wmaybe-uninitialized]
  memcpy(subbuf->head[0].iov_base, obj, this_len);
        ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1159:17: note: 'subbuf.head[0].iov_base' was declared here
  struct xdr_buf subbuf;
                 ^
/home/kisskb/slave/src/net/unix/af_unix.c: In function 'unix_dgram_sendmsg':
/home/kisskb/slave/src/net/unix/af_unix.c:1721:9: warning: 'hash' may be used uninitialized in this function [-Wmaybe-uninitialized]
   other = unix_find_other(net, sunaddr, namelen, sk->sk_type,
         ^
/home/kisskb/slave/src/net/sunrpc/xdr.c: In function 'write_bytes_to_xdr_buf':
/home/kisskb/slave/src/net/sunrpc/xdr.c:1153:8: warning: 'subbuf.tail[0].iov_base' may be used uninitialized in this function [-Wmaybe-uninitialized]
  memcpy(subbuf->tail[0].iov_base, obj, this_len);
        ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1159:17: note: 'subbuf.tail[0].iov_base' was declared here
  struct xdr_buf subbuf;
                 ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1149:17: warning: 'subbuf.page_base' may be used uninitialized in this function [-Wmaybe-uninitialized]
   _copy_to_pages(subbuf->pages, subbuf->page_base, obj, this_len);
                 ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1159:17: note: 'subbuf.page_base' was declared here
  struct xdr_buf subbuf;
                 ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1149:17: warning: 'subbuf.pages' may be used uninitialized in this function [-Wmaybe-uninitialized]
   _copy_to_pages(subbuf->pages, subbuf->page_base, obj, this_len);
                 ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1159:17: note: 'subbuf.pages' was declared here
  struct xdr_buf subbuf;
                 ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1144:8: warning: 'subbuf.head[0].iov_base' may be used uninitialized in this function [-Wmaybe-uninitialized]
  memcpy(subbuf->head[0].iov_base, obj, this_len);
        ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1159:17: note: 'subbuf.head[0].iov_base' was declared here
  struct xdr_buf subbuf;
                 ^
/home/kisskb/slave/src/net/sunrpc/xdr.c: In function 'read_bytes_from_xdr_buf':
/home/kisskb/slave/src/net/sunrpc/xdr.c:1122:8: warning: 'subbuf.tail[0].iov_base' may be used uninitialized in this function [-Wmaybe-uninitialized]
  memcpy(obj, subbuf->tail[0].iov_base, this_len);
        ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1128:17: note: 'subbuf.tail[0].iov_base' was declared here
  struct xdr_buf subbuf;
                 ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1118:19: warning: 'subbuf.page_base' may be used uninitialized in this function [-Wmaybe-uninitialized]
   _copy_from_pages(obj, subbuf->pages, subbuf->page_base, this_len);
                   ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1128:17: note: 'subbuf.page_base' was declared here
  struct xdr_buf subbuf;
                 ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1118:19: warning: 'subbuf.pages' may be used uninitialized in this function [-Wmaybe-uninitialized]
   _copy_from_pages(obj, subbuf->pages, subbuf->page_base, this_len);
                   ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1128:17: note: 'subbuf.pages' was declared here
  struct xdr_buf subbuf;
                 ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1113:8: warning: 'subbuf.head[0].iov_base' may be used uninitialized in this function [-Wmaybe-uninitialized]
  memcpy(obj, subbuf->head[0].iov_base, this_len);
        ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1128:17: note: 'subbuf.head[0].iov_base' was declared here
  struct xdr_buf subbuf;
                 ^
  LD      net/packet/built-in.o
/home/kisskb/slave/src/net/sunrpc/xdr.c: In function 'xdr_decode_word':
/home/kisskb/slave/src/net/sunrpc/xdr.c:1122:8: warning: 'subbuf.tail[0].iov_base' may be used uninitialized in this function [-Wmaybe-uninitialized]
  memcpy(obj, subbuf->tail[0].iov_base, this_len);
        ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1128:17: note: 'subbuf.tail[0].iov_base' was declared here
  struct xdr_buf subbuf;
                 ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1118:19: warning: 'subbuf.page_base' may be used uninitialized in this function [-Wmaybe-uninitialized]
   _copy_from_pages(obj, subbuf->pages, subbuf->page_base, this_len);
                   ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1128:17: note: 'subbuf.page_base' was declared here
  struct xdr_buf subbuf;
                 ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1118:19: warning: 'subbuf.pages' may be used uninitialized in this function [-Wmaybe-uninitialized]
   _copy_from_pages(obj, subbuf->pages, subbuf->page_base, this_len);
                   ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1128:17: note: 'subbuf.pages' was declared here
  struct xdr_buf subbuf;
                 ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1113:8: warning: 'subbuf.head[0].iov_base' may be used uninitialized in this function [-Wmaybe-uninitialized]
  memcpy(obj, subbuf->head[0].iov_base, this_len);
        ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1128:17: note: 'subbuf.head[0].iov_base' was declared here
  struct xdr_buf subbuf;
                 ^
/home/kisskb/slave/src/net/sunrpc/xdr.c: In function 'xdr_buf_read_netobj':
/home/kisskb/slave/src/net/sunrpc/xdr.c:1122:8: warning: 'subbuf.tail[0].iov_base' may be used uninitialized in this function [-Wmaybe-uninitialized]
  memcpy(obj, subbuf->tail[0].iov_base, this_len);
        ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1199:17: note: 'subbuf.tail[0].iov_base' was declared here
  struct xdr_buf subbuf;
                 ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1118:19: warning: 'subbuf.page_base' may be used uninitialized in this function [-Wmaybe-uninitialized]
   _copy_from_pages(obj, subbuf->pages, subbuf->page_base, this_len);
                   ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1199:17: note: 'subbuf.page_base' was declared here
  struct xdr_buf subbuf;
                 ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1118:19: warning: 'subbuf.pages' may be used uninitialized in this function [-Wmaybe-uninitialized]
   _copy_from_pages(obj, subbuf->pages, subbuf->page_base, this_len);
                   ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1199:17: note: 'subbuf.pages' was declared here
  struct xdr_buf subbuf;
                 ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1207:12: warning: 'subbuf.head[0].iov_base' may be used uninitialized in this function [-Wmaybe-uninitialized]
  obj->data = subbuf.head[0].iov_base;
            ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1122:8: warning: 'subbuf.tail[0].iov_base' may be used uninitialized in this function [-Wmaybe-uninitialized]
  memcpy(obj, subbuf->tail[0].iov_base, this_len);
        ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1128:17: note: 'subbuf.tail[0].iov_base' was declared here
  struct xdr_buf subbuf;
                 ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1118:19: warning: 'subbuf.page_base' may be used uninitialized in this function [-Wmaybe-uninitialized]
   _copy_from_pages(obj, subbuf->pages, subbuf->page_base, this_len);
                   ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1128:17: note: 'subbuf.page_base' was declared here
  struct xdr_buf subbuf;
                 ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1118:19: warning: 'subbuf.pages' may be used uninitialized in this function [-Wmaybe-uninitialized]
   _copy_from_pages(obj, subbuf->pages, subbuf->page_base, this_len);
                   ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1128:17: note: 'subbuf.pages' was declared here
  struct xdr_buf subbuf;
                 ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1113:8: warning: 'subbuf.head[0].iov_base' may be used uninitialized in this function [-Wmaybe-uninitialized]
  memcpy(obj, subbuf->head[0].iov_base, this_len);
        ^
/home/kisskb/slave/src/net/sunrpc/xdr.c:1128:17: note: 'subbuf.head[0].iov_base' was declared here
  struct xdr_buf subbuf;
                 ^
  LD      net/unix/unix.o
  LD      net/unix/built-in.o
  LD      net/ipv4/built-in.o
/home/kisskb/slave/src/net/xfrm/xfrm_policy.c: In function 'xfrm_bundle_lookup':
/home/kisskb/slave/src/net/xfrm/xfrm_policy.c:1599:7: 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:1581:18: note: 'dst_ops' was declared here
  struct dst_ops *dst_ops;
                  ^
  LD      net/xfrm/built-in.o
  LD      net/sunrpc/sunrpc.o
  LD      net/sunrpc/built-in.o
  LD      net/built-in.o
  LD      drivers/tty/vt/built-in.o
  LD      drivers/tty/built-in.o
  LD      drivers/built-in.o
  LINK    vmlinux
  LD      vmlinux.o
  MODPOST vmlinux.o
  GEN     .version
  CHK     include/generated/compile.h
  UPD     include/generated/compile.h
  CC      init/version.o
  LD      init/built-in.o
  KSYM    .tmp_kallsyms1.o
  KSYM    .tmp_kallsyms2.o
  LD      vmlinux
  SORTEX  vmlinux
  SYSMAP  System.map
  Building modules, stage 2.
  MODPOST 5 modules
  CC      crypto/drbg.mod.o
  CC      crypto/echainiv.mod.o
  CC      crypto/hmac.mod.o
  CC      crypto/jitterentropy_rng.mod.o
  CC      crypto/sha256_generic.mod.o
  LD [M]  crypto/echainiv.ko
  LD [M]  crypto/hmac.ko
  LD [M]  crypto/jitterentropy_rng.ko
  LD [M]  crypto/drbg.ko
  LD [M]  crypto/sha256_generic.ko
make[1]: Leaving directory '/home/kisskb/slave/build/linus_axs101_defconfig_arcompact'
Completed OK
# rm -rf /home/kisskb/slave/build/linus_axs101_defconfig_arcompact
# Build took: 0:00:41.720006