# git rev-parse -q --verify 80a77045daacc660659093b312ca0708b53ed558^{commit} 80a77045daacc660659093b312ca0708b53ed558 already have revision, skipping fetch # git checkout -q -f -B kisskb 80a77045daacc660659093b312ca0708b53ed558 # git clean -qxdf # git log -1 commit 80a77045daacc660659093b312ca0708b53ed558 Merge: ab29b33 8e1f74e Author: Linus Torvalds Date: Wed Sep 7 14:03:49 2016 -0700 Merge tag 'usercopy-v4.8-rc6-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull more hardened usercopyfixes from Kees Cook: - force check_object_size() to be inline too - move page-spanning check behind a CONFIG since it's triggering false positives [ Changed the page-spanning config option to depend on EXPERT in the merge. That way it still gets build testing, and you can enable it if you want to, but is never enabled for "normal" configurations ] * tag 'usercopy-v4.8-rc6-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: usercopy: remove page-spanning test for now usercopy: force check_object_size() inline # < /opt/cross/kisskb/gcc-4.2.4-nolibc/avr32-linux/bin/avr32-linux-gcc --version # < git log --format=%s --max-count=1 80a77045daacc660659093b312ca0708b53ed558 # < make -j 48 ARCH=avr32 O=/home/kisskb/slave/build/linus_avr32-allnoconfig_avr32 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.2.4-nolibc/avr32-linux/bin/avr32-linux- allnoconfig kernel/time/Kconfig:155:warning: range is invalid # make -j 48 ARCH=avr32 O=/home/kisskb/slave/build/linus_avr32-allnoconfig_avr32 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.2.4-nolibc/avr32-linux/bin/avr32-linux- make[1]: Entering directory '/home/kisskb/slave/build/linus_avr32-allnoconfig_avr32' GEN ./Makefile scripts/kconfig/conf --silentoldconfig Kconfig kernel/time/Kconfig:155:warning: range is invalid CHK include/config/kernel.release UPD include/config/kernel.release GEN ./Makefile WRAP arch/avr32/include/generated/asm/clkdev.h WRAP arch/avr32/include/generated/asm/cputime.h WRAP arch/avr32/include/generated/asm/delay.h WRAP arch/avr32/include/generated/asm/device.h WRAP arch/avr32/include/generated/asm/div64.h WRAP arch/avr32/include/generated/asm/emergency-restart.h WRAP arch/avr32/include/generated/asm/exec.h WRAP arch/avr32/include/generated/asm/futex.h WRAP arch/avr32/include/generated/asm/irq_regs.h WRAP arch/avr32/include/generated/asm/irq_work.h WRAP arch/avr32/include/generated/asm/local.h WRAP arch/avr32/include/generated/asm/local64.h WRAP arch/avr32/include/generated/asm/mcs_spinlock.h WRAP arch/avr32/include/generated/asm/mm-arch-hooks.h WRAP arch/avr32/include/generated/asm/param.h WRAP arch/avr32/include/generated/asm/percpu.h WRAP arch/avr32/include/generated/asm/preempt.h WRAP arch/avr32/include/generated/asm/sections.h WRAP arch/avr32/include/generated/asm/topology.h WRAP arch/avr32/include/generated/asm/trace_clock.h WRAP arch/avr32/include/generated/asm/vga.h WRAP arch/avr32/include/generated/asm/word-at-a-time.h WRAP arch/avr32/include/generated/asm/xor.h WRAP arch/avr32/include/generated/uapi/asm/bitsperlong.h WRAP arch/avr32/include/generated/uapi/asm/errno.h WRAP arch/avr32/include/generated/uapi/asm/fcntl.h WRAP arch/avr32/include/generated/uapi/asm/ioctl.h WRAP arch/avr32/include/generated/uapi/asm/ioctls.h WRAP arch/avr32/include/generated/uapi/asm/ipcbuf.h WRAP arch/avr32/include/generated/uapi/asm/kvm_para.h WRAP arch/avr32/include/generated/uapi/asm/mman.h CHK include/generated/uapi/linux/version.h WRAP arch/avr32/include/generated/uapi/asm/param.h WRAP arch/avr32/include/generated/uapi/asm/poll.h WRAP arch/avr32/include/generated/uapi/asm/resource.h WRAP arch/avr32/include/generated/uapi/asm/siginfo.h WRAP arch/avr32/include/generated/uapi/asm/statfs.h UPD include/generated/uapi/linux/version.h CHK include/generated/utsrelease.h UPD include/generated/utsrelease.h Using /home/kisskb/slave/src as source for kernel CC scripts/mod/empty.o HOSTCC scripts/mod/mk_elfconfig CC scripts/mod/devicetable-offsets.s GEN scripts/mod/devicetable-offsets.h MKELF scripts/mod/elfconfig.h HOSTCC scripts/mod/modpost.o HOSTCC scripts/mod/file2alias.o HOSTCC scripts/mod/sumversion.o HOSTLD scripts/mod/modpost 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/avr32/kernel/asm-offsets.s CHK include/generated/asm-offsets.h UPD include/generated/asm-offsets.h CALL /home/kisskb/slave/src/scripts/checksyscalls.sh CC init/main.o CHK include/generated/compile.h CC init/do_mounts.o CC init/noinitramfs.o CC init/calibrate.o CC init/init_task.o UPD include/generated/compile.h LD usr/built-in.o CC init/version.o CC arch/avr32/mach-at32ap/clock.o CC arch/avr32/mach-at32ap/intc.o CC arch/avr32/mach-at32ap/pdc.o CC arch/avr32/mach-at32ap/extint.o CC arch/avr32/mach-at32ap/pio.o CC arch/avr32/mach-at32ap/hsmc.o AS arch/avr32/mach-at32ap/pm-at32ap700x.o CC arch/avr32/mach-at32ap/at32ap700x.o CC arch/avr32/mach-at32ap/hmatrix.o CC arch/avr32/boards/atstk1000/setup.o CC arch/avr32/boards/atstk1000/flash.o CC arch/avr32/boards/atstk1000/atstk1002.o AS arch/avr32/boot/u-boot/empty.o AS arch/avr32/boot/u-boot/head.o LD arch/avr32/boot/u-boot/built-in.o AS arch/avr32/kernel/entry-avr32b.o AS arch/avr32/kernel/syscall_table.o AS arch/avr32/kernel/syscall-stubs.o CC arch/avr32/kernel/ocd.o CC arch/avr32/kernel/irq.o CC arch/avr32/kernel/ptrace.o CC arch/avr32/kernel/traps.o AS arch/avr32/kernel/switch_to.o CC arch/avr32/kernel/signal.o CC arch/avr32/kernel/time.o CC arch/avr32/kernel/process.o LDS arch/avr32/kernel/vmlinux.lds CC arch/avr32/kernel/setup.o AS arch/avr32/kernel/head.o CC arch/avr32/kernel/cpu.o CC arch/avr32/mm/fault.o CC arch/avr32/mm/cache.o CC arch/avr32/mm/dma-coherent.o AS arch/avr32/mm/copy_page.o AS arch/avr32/mm/clear_page.o CC arch/avr32/mm/init.o CC arch/avr32/mm/ioremap.o CC arch/avr32/mm/tlb.o LD certs/built-in.o CC kernel/fork.o CC kernel/exec_domain.o CC kernel/panic.o CC kernel/cpu.o CC kernel/exit.o CC kernel/resource.o CC kernel/sysctl.o CC kernel/capability.o CC kernel/softirq.o CC kernel/sys.o CC kernel/ptrace.o CC kernel/kmod.o CC kernel/sysctl_binary.o CC kernel/signal.o CC kernel/user.o CC kernel/workqueue.o CC kernel/notifier.o CC kernel/ksysfs.o CC kernel/pid.o CC kernel/sys_ni.o CC kernel/cred.o CC kernel/async.o CC kernel/range.o CC kernel/task_work.o CC kernel/extable.o CC kernel/smpboot.o CC kernel/params.o CC kernel/kthread.o CC kernel/nsproxy.o CC kernel/reboot.o LD kernel/livepatch/built-in.o LD arch/avr32/kernel/built-in.o LD arch/avr32/boards/atstk1000/built-in.o CC kernel/up.o CC kernel/power/qos.o CC kernel/memremap.o CC kernel/printk/printk.o CC kernel/rcu/sync.o CC kernel/rcu/update.o CC kernel/locking/mutex.o CC kernel/rcu/tiny.o CC kernel/locking/semaphore.o LD init/mounts.o CC kernel/locking/rwsem.o CC kernel/irq/irqdesc.o LD init/built-in.o CC kernel/irq/handle.o LD arch/avr32/mm/built-in.o CC kernel/sched/core.o CC kernel/sched/clock.o CC kernel/sched/loadavg.o CC mm/filemap.o CC mm/mempool.o LD arch/avr32/mach-at32ap/built-in.o LD ipc/built-in.o CC kernel/time/time.o CC kernel/irq/manage.o CC kernel/irq/spurious.o CC mm/oom_kill.o CC kernel/irq/resend.o CC kernel/time/timer.o CC mm/maccess.o CC kernel/locking/percpu-rwsem.o CC kernel/time/hrtimer.o CC kernel/locking/rwsem-spinlock.o CC kernel/time/itimer.o CC kernel/sched/cputime.o CC kernel/sched/idle_task.o CC kernel/sched/fair.o CC kernel/sched/rt.o CC kernel/sched/deadline.o CC security/commoncap.o CC mm/page_alloc.o CC kernel/sched/stop_task.o CC security/min_addr.o CC kernel/sched/wait.o CC kernel/irq/chip.o CC mm/page-writeback.o CC kernel/irq/dummychip.o CC kernel/irq/devres.o CC kernel/irq/autoprobe.o CC kernel/sched/swait.o CC kernel/sched/idle.o CC kernel/sched/completion.o CC mm/readahead.o CC kernel/time/posix-timers.o CC mm/swap.o LD crypto/built-in.o CC fs/open.o /home/kisskb/slave/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /home/kisskb/slave/src/kernel/printk/printk.c:158: warning: 'old' may be used uninitialized in this function CC fs/read_write.o CC fs/file_table.o LD kernel/rcu/built-in.o CC fs/super.o CC kernel/time/posix-cpu-timers.o CC fs/char_dev.o CC mm/vmscan.o CC mm/truncate.o CC fs/exec.o CC fs/stat.o LD kernel/power/built-in.o LD kernel/locking/built-in.o CC kernel/time/timekeeping.o CC mm/shmem.o CC kernel/time/ntp.o CC mm/util.o CC mm/mmzone.o CC kernel/time/clocksource.o CC mm/vmstat.o LD kernel/printk/built-in.o LD block/built-in.o CC kernel/time/jiffies.o CC mm/backing-dev.o CC kernel/time/timer_list.o CC mm/mmu_context.o CC mm/mm_init.o /home/kisskb/slave/src/kernel/time/time.c: In function 'SyS_settimeofday': /home/kisskb/slave/src/kernel/time/time.c:197: warning: 'new_ts.tv_sec' may be used uninitialized in this function /home/kisskb/slave/src/kernel/time/time.c:197: note: 'new_ts.tv_sec' was declared here /home/kisskb/slave/src/kernel/time/time.c:197: warning: 'new_ts.tv_nsec' may be used uninitialized in this function /home/kisskb/slave/src/kernel/time/time.c:197: note: 'new_ts.tv_nsec' was declared here CC kernel/time/timeconv.o CC mm/percpu.o CC kernel/time/timecounter.o CC kernel/time/posix-clock.o CC kernel/time/alarmtimer.o CC kernel/time/clockevents.o CC mm/slab_common.o LD kernel/irq/built-in.o CC fs/pipe.o CC kernel/time/tick-common.o CC mm/compaction.o CC fs/namei.o LD security/built-in.o CC mm/vmacache.o CC mm/interval_tree.o /home/kisskb/slave/src/kernel/time/ntp.c: In function 'ntp_validate_timex': /home/kisskb/slave/src/kernel/time/ntp.c:707: warning: comparison is always false due to limited range of data type /home/kisskb/slave/src/kernel/time/ntp.c:709: warning: comparison is always false due to limited range of data type LD sound/built-in.o CC fs/fcntl.o CC mm/list_lru.o CC fs/ioctl.o CC mm/workingset.o CC fs/select.o CC fs/readdir.o CC mm/debug.o CC mm/gup.o CC mm/highmem.o CC fs/dcache.o CC mm/mincore.o CC mm/memory.o LD firmware/built-in.o CC fs/inode.o CC mm/mlock.o CC fs/bad_inode.o CC fs/attr.o CC mm/mmap.o CC mm/mprotect.o CC mm/msync.o CC mm/mremap.o LD net/built-in.o CC mm/rmap.o CC fs/file.o CC mm/vmalloc.o CC fs/filesystems.o CC fs/namespace.o LD kernel/sched/built-in.o CC fs/seq_file.o CC mm/pagewalk.o CC mm/pgtable-generic.o CC fs/xattr.o CC mm/init-mm.o CC fs/libfs.o CC mm/bootmem.o CC mm/dmapool.o CC fs/fs-writeback.o CC mm/quicklist.o CC mm/slub.o CC fs/pnode.o CC fs/splice.o CC fs/sync.o CC fs/fs_struct.o CC fs/utimes.o CC fs/stack.o CC fs/statfs.o LD drivers/amba/built-in.o CC fs/fs_pin.o CC fs/nsfs.o LD drivers/auxdisplay/built-in.o LD arch/avr32/lib/built-in.o AS arch/avr32/lib/__avr32_asr64.o AS arch/avr32/lib/__avr32_lsl64.o AS arch/avr32/lib/__avr32_lsr64.o AS arch/avr32/lib/clear_user.o CC fs/no-block.o AS arch/avr32/lib/copy_user.o AS arch/avr32/lib/csum_partial.o AS arch/avr32/lib/csum_partial_copy_generic.o CC arch/avr32/lib/delay.o LD fs/devpts/built-in.o LD drivers/block/built-in.o LD fs/exofs/built-in.o LD drivers/bus/built-in.o AS arch/avr32/lib/findbit.o LD fs/quota/built-in.o CC fs/anon_inodes.o AS arch/avr32/lib/io-readsb.o AS arch/avr32/lib/io-readsw.o AS arch/avr32/lib/io-readsl.o AS arch/avr32/lib/io-writesl.o LD drivers/cdrom/built-in.o AS arch/avr32/lib/io-writesb.o CC fs/ramfs/inode.o CC fs/ramfs/file-mmu.o CC lib/lockref.o LD fs/notify/fanotify/built-in.o LD fs/notify/dnotify/built-in.o AS arch/avr32/lib/memset.o AS arch/avr32/lib/strncpy_from_user.o AS arch/avr32/lib/io-writesw.o AS arch/avr32/lib/memcpy.o CC drivers/char/mem.o AS arch/avr32/lib/strnlen_user.o CC drivers/base/component.o CC drivers/base/core.o /home/kisskb/slave/src/fs/dcache.c: In function '__d_move': /home/kisskb/slave/src/fs/dcache.c:2764: warning: 'n' may be used uninitialized in this function CC drivers/char/random.o CC drivers/clk/clk-devres.o LD drivers/clocksource/built-in.o CC drivers/char/misc.o CC lib/bcd.o LD drivers/clk/bcm/built-in.o LD fs/notify/inotify/built-in.o LD drivers/char/agp/built-in.o LD drivers/firewire/built-in.o LD virt/lib/built-in.o CC drivers/base/syscore.o CC drivers/base/dd.o CC drivers/base/bus.o CC lib/div64.o CC lib/sort.o CC drivers/base/driver.o LD fs/notify/built-in.o LD virt/built-in.o LD drivers/clk/ti/built-in.o CC drivers/gpio/devres.o LD drivers/clk/mvebu/built-in.o CC lib/parser.o CC lib/halfmd4.o CC drivers/gpio/gpiolib.o AR arch/avr32/lib/lib.a CC drivers/gpio/gpiolib-legacy.o /home/kisskb/slave/src/fs/dcache.c: In function 'd_splice_alias': /home/kisskb/slave/src/fs/dcache.c:2520: warning: 'n' may be used uninitialized in this function /home/kisskb/slave/src/fs/dcache.c:2520: note: 'n' was declared here CC lib/random32.o LD drivers/hwtracing/intel_th/built-in.o CC lib/debug_locks.o CC lib/bust_spinlocks.o CC lib/kasprintf.o LD drivers/idle/built-in.o LD drivers/gpu/vga/built-in.o CC lib/bitmap.o LD drivers/firmware/broadcom/built-in.o LD drivers/irqchip/built-in.o CC lib/scatterlist.o /home/kisskb/slave/src/fs/splice.c: In function 'iter_file_splice_write': /home/kisskb/slave/src/fs/splice.c:966: warning: 'ret' may be used uninitialized in this function CC drivers/base/class.o CC drivers/base/platform.o LD drivers/lguest/built-in.o CC drivers/base/cpu.o LD drivers/firmware/built-in.o CC lib/gcd.o LD drivers/i2c/algos/built-in.o LD drivers/macintosh/built-in.o LD drivers/i2c/busses/built-in.o LD drivers/mfd/built-in.o LD drivers/mmc/built-in.o CC lib/lcm.o /home/kisskb/slave/src/fs/dcache.c: In function 'd_add': /home/kisskb/slave/src/fs/dcache.c:2520: warning: 'n' may be used uninitialized in this function /home/kisskb/slave/src/fs/dcache.c:2520: note: 'n' was declared here CC drivers/base/firmware.o LD drivers/clk/built-in.o CC drivers/base/init.o LD drivers/i2c/muxes/built-in.o LD drivers/gpu/drm/bridge/built-in.o LD drivers/net/built-in.o LD drivers/nfc/built-in.o LD drivers/gpu/drm/hisilicon/built-in.o CC lib/list_sort.o CC lib/flex_array.o CC lib/uuid.o LD drivers/platform/built-in.o CC lib/clz_ctz.o LD drivers/i2c/built-in.o LD drivers/gpu/drm/i2c/built-in.o CC lib/iov_iter.o LD drivers/power/built-in.o LD drivers/pwm/built-in.o CC drivers/base/map.o CC drivers/base/devres.o LD drivers/nvme/target/built-in.o CC lib/find_bit.o LD drivers/nvme/host/built-in.o CC lib/bsearch.o CC lib/llist.o CC lib/memweight.o CC drivers/base/attribute_container.o LD drivers/misc/cb710/built-in.o LD fs/ramfs/ramfs.o LD drivers/gpu/drm/panel/built-in.o LD drivers/misc/eeprom/built-in.o CC lib/kfifo.o LD fs/ramfs/built-in.o LD drivers/gpu/drm/omapdrm/displays/built-in.o LD drivers/nvme/built-in.o LD drivers/gpu/drm/omapdrm/dss/built-in.o LD drivers/soc/bcm/built-in.o LD drivers/media/firewire/built-in.o CC drivers/base/transport_class.o CC drivers/base/topology.o CC lib/percpu-refcount.o CC lib/percpu_ida.o CC drivers/base/container.o CC drivers/base/property.o CC lib/rhashtable.o CC lib/reciprocal_div.o LD drivers/gpu/drm/tilcdc/built-in.o LD drivers/misc/lis3lv02d/built-in.o CC lib/once.o CC drivers/base/cacheinfo.o LD drivers/tty/ipwireless/built-in.o LD drivers/gpu/drm/omapdrm/built-in.o LD drivers/media/i2c/soc_camera/built-in.o CC lib/string_helpers.o CC drivers/base/dma-mapping.o LD drivers/misc/ti-st/built-in.o LD drivers/video/backlight/built-in.o LD drivers/soc/fsl/built-in.o CC lib/iomap_copy.o CC lib/hexdump.o CC lib/kstrtox.o CC lib/devres.o CC drivers/base/power/clock_ops.o LD drivers/misc/mic/bus/built-in.o LD drivers/soc/built-in.o CC lib/genalloc.o CC lib/hweight.o LD drivers/video/fbdev/core/built-in.o LD drivers/media/mmc/siano/built-in.o CC lib/atomic64.o CC lib/argv_split.o LD drivers/media/i2c/built-in.o LD drivers/media/common/b2c2/built-in.o LD drivers/misc/mic/built-in.o LD drivers/gpu/drm/built-in.o LD drivers/tty/vt/built-in.o LD drivers/tty/serial/built-in.o LD drivers/media/mmc/built-in.o CC lib/chacha20.o LD drivers/char/built-in.o LD drivers/media/common/saa7146/built-in.o LD drivers/misc/built-in.o LD drivers/media/common/siano/built-in.o CC lib/cmdline.o LD drivers/tty/built-in.o LD drivers/media/tuners/built-in.o CC lib/dec_and_lock.o CC lib/ctype.o LD drivers/video/fbdev/omap2/omapfb/displays/built-in.o CC lib/decompress.o CC lib/dma-noop.o CC lib/dump_stack.o LD drivers/gpu/built-in.o LD drivers/video/fbdev/omap2/omapfb/dss/built-in.o LD drivers/media/platform/omap/built-in.o CC lib/earlycpio.o CC lib/flex_proportions.o LD drivers/media/common/v4l2-tpg/built-in.o CC lib/extable.o LD drivers/media/rc/keymaps/built-in.o LD fs/built-in.o CC lib/idr.o CC lib/int_sqrt.o CC lib/ioremap.o CC lib/irq_regs.o LD drivers/base/power/built-in.o LD drivers/media/platform/built-in.o LD drivers/video/fbdev/omap2/omapfb/built-in.o CC lib/klist.o CC lib/is_single_threaded.o LD drivers/media/rc/built-in.o LD drivers/media/common/built-in.o CC lib/kobject.o CC lib/md5.o CC lib/kobject_uevent.o CC lib/nodemask.o CC lib/nmi_backtrace.o CC lib/plist.o CC lib/radix-tree.o LD drivers/video/fbdev/omap2/built-in.o CC lib/ratelimit.o CC lib/rbtree.o CC lib/seq_buf.o CC lib/show_mem.o CC lib/sha1.o CC lib/timerqueue.o CC lib/vsprintf.o CC lib/string.o LD drivers/video/fbdev/built-in.o LD drivers/media/usb/siano/built-in.o LD drivers/media/usb/b2c2/built-in.o LD drivers/media/usb/ttusb-dec/built-in.o LD drivers/media/usb/zr364xx/built-in.o LD drivers/video/built-in.o LD drivers/media/usb/ttusb-budget/built-in.o LD drivers/media/usb/stkwebcam/built-in.o LD drivers/media/usb/dvb-usb/built-in.o LD drivers/media/usb/s2255/built-in.o LD drivers/media/usb/dvb-usb-v2/built-in.o LD drivers/media/usb/built-in.o LD drivers/media/pci/b2c2/built-in.o LD drivers/media/pci/smipcie/built-in.o LD drivers/media/pci/pt3/built-in.o LD drivers/media/pci/dm1105/built-in.o LD drivers/media/pci/ttpci/built-in.o LD drivers/media/pci/ddbridge/built-in.o LD drivers/media/pci/saa7146/built-in.o LD drivers/media/pci/pt1/built-in.o LD drivers/media/pci/netup_unidvb/built-in.o LD drivers/media/pci/pluto2/built-in.o LD drivers/media/pci/mantis/built-in.o LD drivers/media/pci/ngene/built-in.o LD drivers/gpio/built-in.o LD drivers/media/pci/built-in.o LD drivers/media/built-in.o /home/kisskb/slave/src/kernel/time/timekeeping.c: In function 'get_device_system_crosststamp': /home/kisskb/slave/src/kernel/time/timekeeping.c:1053: warning: 'cs_was_changed_seq' may be used uninitialized in this function LD drivers/base/built-in.o LD drivers/built-in.o LD kernel/time/built-in.o LD kernel/built-in.o AR lib/lib.a LD lib/built-in.o /home/kisskb/slave/src/mm/page-writeback.c: In function 'balance_dirty_pages_ratelimited': /home/kisskb/slave/src/mm/page-writeback.c:1626: warning: 'writeback' is used uninitialized in this function /home/kisskb/slave/src/mm/page-writeback.c:1618: note: 'writeback' was declared here /home/kisskb/slave/src/mm/page-writeback.c:1627: warning: 'filepages' is used uninitialized in this function /home/kisskb/slave/src/mm/page-writeback.c:1618: note: 'filepages' was declared here /home/kisskb/slave/src/mm/page-writeback.c:1627: warning: 'headroom' is used uninitialized in this function /home/kisskb/slave/src/mm/page-writeback.c:1618: note: 'headroom' was declared here /home/kisskb/slave/src/mm/page-writeback.c: In function 'wb_over_bg_thresh': /home/kisskb/slave/src/mm/page-writeback.c:1954: warning: 'filepages' is used uninitialized in this function /home/kisskb/slave/src/mm/page-writeback.c:1954: warning: 'headroom' is used uninitialized in this function LD mm/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 LD vmlinux virt/built-in.o: warning: input is not relaxable SYSMAP System.map OBJCOPY arch/avr32/boot/images/vmlinux.bin GZIP arch/avr32/boot/images/vmlinux.gz OBJCOPY arch/avr32/boot/images/vmlinux.elf /opt/cross/kisskb/gcc-4.2.4-nolibc/avr32-linux/bin/avr32-linux-objcopy: --change-section-lma __ksymtab_strings+0xffffffff80000000 never used /opt/cross/kisskb/gcc-4.2.4-nolibc/avr32-linux/bin/avr32-linux-objcopy: --change-section-lma __kcrctab_gpl+0xffffffff80000000 never used /opt/cross/kisskb/gcc-4.2.4-nolibc/avr32-linux/bin/avr32-linux-objcopy: --change-section-lma __kcrctab+0xffffffff80000000 never used /opt/cross/kisskb/gcc-4.2.4-nolibc/avr32-linux/bin/avr32-linux-objcopy: --change-section-lma __ksymtab_gpl+0xffffffff80000000 never used /opt/cross/kisskb/gcc-4.2.4-nolibc/avr32-linux/bin/avr32-linux-objcopy: --change-section-lma __ksymtab+0xffffffff80000000 never used UIMAGE arch/avr32/boot/images/uImage Image Name: Linux-4.8.0-rc5+ Created: Thu Sep 8 10:07:57 2016 Image Type: AVR32 Linux Kernel Image (gzip compressed) Data Size: 371715 Bytes = 363.00 kB = 0.35 MB Load Address: 10000000 Entry Point: 90000000 Image arch/avr32/boot/images/uImage is ready make[1]: Leaving directory '/home/kisskb/slave/build/linus_avr32-allnoconfig_avr32' Completed OK # rm -rf /home/kisskb/slave/build/linus_avr32-allnoconfig_avr32 # Build took: 0:00:12.164222