# git rev-parse -q --verify fbc3edf7d7731d7a22c483c679700589bab936a3^{commit}
fbc3edf7d7731d7a22c483c679700589bab936a3
already have revision, skipping fetch
# git checkout -q -f -B kisskb fbc3edf7d7731d7a22c483c679700589bab936a3
# git clean -qxdf
# git log -1
commit fbc3edf7d7731d7a22c483c679700589bab936a3
Author: Borislav Petkov <bp@suse.de>
Date:   Tue Nov 7 17:37:24 2017 +0100

    drivers/ide-cd: Handle missing driver data during status check gracefully
    
    The 0day bot reports the below failure which happens occasionally, with
    their randconfig testing (once every ~100 boots).  The Code points at
    the private pointer ->driver_data being NULL, which hints at a race of
    sorts where the private driver_data descriptor has disappeared by the
    time we get to run the workqueue.
    
    So let's check that pointer before we continue with issuing the command
    to the drive.
    
    This fix is of the brown paper bag nature but considering that IDE is
    long deprecated, let's do that so that random testing which happens to
    enable CONFIG_IDE during randconfig builds, doesn't fail because of
    this.
    
    Besides, failing the TEST_UNIT_READY command because the drive private
    data is gone is something which we could simply do anyway, to denote
    that there was a problem communicating with the device.
    
      BUG: unable to handle kernel NULL pointer dereference at 000001c0
      IP: cdrom_check_status
      *pde = 00000000
      Oops: 0000 [#1] SMP
      CPU: 1 PID: 155 Comm: kworker/1:2 Not tainted 4.14.0-rc8 #127
      Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
      Workqueue: events_freezable_power_ disk_events_workfn
      task: 4fe90980 task.stack: 507ac000
      EIP: cdrom_check_status+0x2c/0x90
      EFLAGS: 00210246 CPU: 1
      EAX: 00000000 EBX: 4fefec00 ECX: 00000000 EDX: 00000000
      ESI: 00000003 EDI: ffffffff EBP: 467a9340 ESP: 507aded0
       DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
      CR0: 80050033 CR2: 000001c0 CR3: 06e0f000 CR4: 00000690
      Call Trace:
       ? ide_cdrom_check_events_real
       ? cdrom_check_events
       ? disk_check_events
       ? process_one_work
       ? process_one_work
       ? worker_thread
       ? kthread
       ? process_one_work
       ? __kthread_create_on_node
       ? ret_from_fork
      Code: 53 83 ec 14 89 c3 89 d1 be 03 00 00 00 65 a1 14 00 00 00 89 44 24 10 31 c0 8b 43 18 c7 44 24 04 00 00 00 00 c7 04 24 00 00 00 00 <8a> 80 c0 01 00 00 c7 44 24 08 00 00 00 00 83 e0 03 c7 44 24 0c
      EIP: cdrom_check_status+0x2c/0x90 SS:ESP: 0068:507aded0
      CR2: 00000000000001c0
      ---[ end trace 2410e586dd8f88b2 ]---
    
    Reported-and-tested-by: Fengguang Wu <fengguang.wu@intel.com>
    Signed-off-by: Borislav Petkov <bp@suse.de>
    Cc: "David S. Miller" <davem@davemloft.net>
    Cc: Jens Axboe <axboe@kernel.dk>
    Cc: Bart Van Assche <bart.vanassche@sandisk.com>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-gcc --version
# < git log --format=%s --max-count=1 fbc3edf7d7731d7a22c483c679700589bab936a3
# < make -j 10 ARCH=i386 O=/home/kisskb/slave/build/linus_i386-allnoconfig_i386 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-  allnoconfig
# make -j 10 ARCH=i386 O=/home/kisskb/slave/build/linus_i386-allnoconfig_i386 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-  
make[1]: Entering directory '/home/kisskb/slave/build/linus_i386-allnoconfig_i386'
  GEN     ./Makefile
scripts/kconfig/conf  --silentoldconfig Kconfig
  SYSTBL  arch/x86/entry/syscalls/../../include/generated/asm/syscalls_32.h
  SYSHDR  arch/x86/entry/syscalls/../../include/generated/uapi/asm/unistd_32.h
  SYSHDR  arch/x86/entry/syscalls/../../include/generated/uapi/asm/unistd_64.h
  SYSHDR  arch/x86/entry/syscalls/../../include/generated/uapi/asm/unistd_x32.h
  CHK     include/config/kernel.release
  GEN     ./Makefile
  UPD     include/config/kernel.release
  CHK     include/generated/uapi/linux/version.h
  UPD     include/generated/uapi/linux/version.h
  CHK     include/generated/utsrelease.h
  UPD     include/generated/utsrelease.h
  HOSTCC  arch/x86/tools/relocs_32.o
  HOSTCC  arch/x86/tools/relocs_64.o
  HOSTCC  arch/x86/tools/relocs_common.o
  Using /home/kisskb/slave/src as source for kernel
  WRAP    arch/x86/include/generated/asm/clkdev.h
  WRAP    arch/x86/include/generated/asm/dma-contiguous.h
  WRAP    arch/x86/include/generated/asm/early_ioremap.h
  WRAP    arch/x86/include/generated/asm/mcs_spinlock.h
  WRAP    arch/x86/include/generated/asm/mm-arch-hooks.h
  HOSTCC  scripts/sortextable
  CC      scripts/mod/empty.o
  HOSTCC  scripts/mod/mk_elfconfig
  CC      scripts/mod/devicetable-offsets.s
  CHK     scripts/mod/devicetable-offsets.h
  UPD     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  arch/x86/tools/relocs
  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/x86/kernel/asm-offsets.s
  HOSTLD  scripts/mod/modpost
  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
  AR      usr/built-in.o
  CC      init/noinitramfs.o
  CC      init/calibrate.o
  CC      init/init_task.o
  UPD     include/generated/compile.h
  CC      init/version.o
  AR      certs/built-in.o
  AS      arch/x86/entry/entry_32.o
  AR      arch/x86/crypto/built-in.o
  CC      kernel/fork.o
  AS      arch/x86/entry/thunk_32.o
  CC      mm/filemap.o
  CC      arch/x86/entry/syscall_32.o
  CC      fs/open.o
  CC      fs/read_write.o
  CC      fs/file_table.o
  CC      arch/x86/entry/common.o
  CC      mm/mempool.o
  CC      mm/oom_kill.o
  CC      arch/x86/entry/vdso/vma.o
  CC      arch/x86/entry/vsyscall/vsyscall_gtod.o
  AR      init/mounts.o
  AR      init/built-in.o
  CC      arch/x86/events/core.o
  CC      arch/x86/kernel/process_32.o
  CC      arch/x86/mm/init.o
  AR      arch/x86/entry/vsyscall/built-in.o
  CC      arch/x86/mm/init_32.o
  CC      arch/x86/mm/fault.o
  CC      arch/x86/mm/ioremap.o
  CC      arch/x86/entry/vdso/vdso32-setup.o
  CC      kernel/exec_domain.o
  CC      fs/super.o
  LDS     arch/x86/entry/vdso/vdso32/vdso32.lds
  CC      arch/x86/entry/vdso/vdso32/vclock_gettime.o
  CC      arch/x86/kernel/signal.o
  CC      mm/maccess.o
  CC      kernel/panic.o
  CC      mm/page_alloc.o
  AS      arch/x86/entry/vdso/vdso32/note.o
  AS      arch/x86/entry/vdso/vdso32/system_call.o
  AS      arch/x86/entry/vdso/vdso32/sigreturn.o
  HOSTCC  arch/x86/entry/vdso/vdso2c
  CC      mm/page-writeback.o
  CC      mm/readahead.o
  CC      arch/x86/mm/extable.o
  CC      fs/char_dev.o
  CC      kernel/cpu.o
  CC      arch/x86/events/amd/core.o
  CC      arch/x86/kernel/traps.o
  CC      arch/x86/events/intel/core.o
  CC      arch/x86/mm/pageattr.o
  CC      arch/x86/events/intel/bts.o
  VDSO    arch/x86/entry/vdso/vdso32.so.dbg
  CC      fs/stat.o
  OBJCOPY arch/x86/entry/vdso/vdso32.so
  VDSO2C  arch/x86/entry/vdso/vdso-image-32.c
  CC      arch/x86/entry/vdso/vdso-image-32.o
  AR      arch/x86/entry/vdso/built-in.o
  AR      arch/x86/entry/built-in.o
  CC      kernel/exit.o
  CC      arch/x86/mm/mmap.o
  CC      arch/x86/events/amd/uncore.o
  CC      arch/x86/kernel/idt.o
  CC      arch/x86/mm/pat.o
  CC      arch/x86/mm/pgtable.o
  CC      kernel/softirq.o
  CC      fs/exec.o
  CC      arch/x86/kernel/irq.o
  CC      fs/pipe.o
  AR      arch/x86/events/amd/built-in.o
  CC      fs/namei.o
  CC      arch/x86/mm/physaddr.o
  AR      arch/x86/net/built-in.o
  CC      arch/x86/kernel/irq_32.o
  CC      arch/x86/events/intel/ds.o
  CC      mm/swap.o
  CC      kernel/resource.o
  CC      fs/fcntl.o
  CC      mm/truncate.o
  CC      arch/x86/mm/setup_nx.o
  CC      arch/x86/kernel/dumpstack_32.o
  CC      arch/x86/mm/tlb.o
  CC      arch/x86/realmode/init.o
  AR      arch/x86/platform/atom/built-in.o
  CC      kernel/sysctl.o
  AR      arch/x86/platform/ce4100/built-in.o
  AR      arch/x86/platform/efi/built-in.o
  AR      arch/x86/platform/geode/built-in.o
  AR      ipc/built-in.o
  AR      arch/x86/platform/goldfish/built-in.o
  CC      fs/ioctl.o
  AR      arch/x86/platform/intel/built-in.o
  CC      arch/x86/kernel/time.o
  AR      arch/x86/platform/intel-mid/built-in.o
  CC      arch/x86/kernel/ioport.o
  AR      arch/x86/platform/intel-quark/built-in.o
  AR      arch/x86/platform/iris/built-in.o
  AR      arch/x86/platform/olpc/built-in.o
  CC      arch/x86/events/intel/knc.o
  AR      arch/x86/platform/scx200/built-in.o
  AR      arch/x86/platform/sfi/built-in.o
  AR      arch/x86/platform/ts5500/built-in.o
  AR      arch/x86/platform/uv/built-in.o
  CC      mm/vmscan.o
  AR      arch/x86/platform/built-in.o
  CC      arch/x86/kernel/dumpstack.o
  CC      arch/x86/kernel/nmi.o
  CC      arch/x86/mm/pgtable_32.o
  AS      arch/x86/realmode/rm/header.o
  AS      arch/x86/realmode/rm/trampoline_32.o
  AS      arch/x86/realmode/rm/stack.o
  AS      arch/x86/realmode/rm/reboot.o
  PASYMS  arch/x86/realmode/rm/pasyms.h
  LDS     arch/x86/realmode/rm/realmode.lds
  LD      arch/x86/realmode/rm/realmode.elf
  RELOCS  arch/x86/realmode/rm/realmode.relocs
  OBJCOPY arch/x86/realmode/rm/realmode.bin
  AS      arch/x86/realmode/rmpiggy.o
  AR      arch/x86/realmode/built-in.o
  CC      fs/readdir.o
  CC      arch/x86/kernel/setup.o
  CC      fs/select.o
  CC      arch/x86/events/intel/lbr.o
  CC      kernel/sysctl_binary.o
  CC      arch/x86/events/intel/p4.o
  CC      arch/x86/events/intel/p6.o
  CC      arch/x86/mm/iomap_32.o
  CC      arch/x86/mm/highmem_32.o
  CC      arch/x86/events/intel/pt.o
  CC      security/commoncap.o
  CC      arch/x86/kernel/x86_init.o
  CC      security/min_addr.o
  CC      kernel/capability.o
  AR      crypto/built-in.o
  AR      block/built-in.o
  AR      sound/built-in.o
  CC      mm/shmem.o
  AR      firmware/built-in.o
  AR      net/built-in.o
  CC      fs/dcache.o
  AR      drivers/amba/built-in.o
  AR      drivers/auxdisplay/built-in.o
  CC      lib/lockref.o
  AR      arch/x86/mm/built-in.o
  CC      drivers/base/component.o
  CC      arch/x86/lib/msr.o
  AS      arch/x86/lib/msr-reg.o
  CC      fs/inode.o
  CC      arch/x86/kernel/i8259.o
  CC      lib/bcd.o
  CC      lib/div64.o
  CC      kernel/ptrace.o
  CC      arch/x86/lib/msr-reg-export.o
  AS      arch/x86/lib/hweight.o
  CC      lib/sort.o
  CC      arch/x86/lib/atomic64_32.o
  AS      arch/x86/lib/atomic64_cx8_32.o
  CC      lib/parser.o
  AS      arch/x86/lib/checksum_32.o
  CC      mm/util.o
  CC      arch/x86/lib/cmdline.o
  CC      drivers/base/core.o
  CC      arch/x86/lib/cpu.o
  AR      security/built-in.o
  CC      arch/x86/lib/delay.o
  CC      fs/attr.o
  CC      arch/x86/kernel/irqinit.o
  AR      arch/x86/events/intel/built-in.o
  AR      arch/x86/events/built-in.o
  CC      arch/x86/kernel/jump_label.o
  CC      lib/debug_locks.o
  CC      lib/random32.o
  AS      arch/x86/lib/getuser.o
  GEN     arch/x86/lib/inat-tables.c
  CC      arch/x86/lib/insn.o
  CC      arch/x86/lib/memcpy_32.o
  CC      mm/mmzone.o
  CC      kernel/user.o
  CC      lib/bust_spinlocks.o
  CC      lib/kasprintf.o
  CC      arch/x86/kernel/irq_work.o
  CC      arch/x86/lib/misc.o
  AS      arch/x86/lib/putuser.o
  CC      kernel/signal.o
  AS      arch/x86/lib/rwsem.o
  CC      arch/x86/lib/string_32.o
  CC      kernel/sys.o
  CC      arch/x86/lib/strstr_32.o
  CC      fs/bad_inode.o
  CC      arch/x86/lib/usercopy.o
  CC      drivers/base/bus.o
  CC      mm/vmstat.o
  CC      kernel/umh.o
  CC      arch/x86/kernel/probe_roms.o
  CC      lib/bitmap.o
  CC      arch/x86/kernel/bootflag.o
  CC      arch/x86/lib/usercopy_32.o
  CC      fs/file.o
  CC      arch/x86/lib/inat.o
  AR      arch/x86/lib/lib.a
  EXPORTS arch/x86/lib/lib-ksyms.o
  AR      arch/x86/lib/built-in.o
  CC      lib/scatterlist.o
  CC      mm/backing-dev.o
  CC      mm/mm_init.o
  CC      arch/x86/kernel/e820.o
  CC      arch/x86/kernel/pci-dma.o
  CC      drivers/base/dd.o
  CC      mm/mmu_context.o
  CC      fs/filesystems.o
  CC      lib/gcd.o
  CC      fs/namespace.o
  CC      lib/lcm.o
  CC      fs/seq_file.o
  CC      mm/percpu.o
  CC      fs/xattr.o
  CC      lib/list_sort.o
  CC      fs/libfs.o
  CC      lib/uuid.o
  CC      drivers/base/syscore.o
/home/kisskb/slave/src/arch/x86/kernel/e820.c: In function 'e820__setup_pci_gap':
/home/kisskb/slave/src/arch/x86/kernel/e820.c:650:16: warning: 'gapstart' may be used uninitialized in this function [-Wuninitialized]
  CC      lib/flex_array.o
  CC      kernel/workqueue.o
  CC      arch/x86/kernel/quirks.o
  CC      fs/fs-writeback.o
  CC      lib/iov_iter.o
  CC      drivers/base/driver.o
  CC      mm/slab_common.o
  CC      arch/x86/kernel/topology.o
  CC      kernel/pid.o
  CC      mm/compaction.o
  CC      kernel/task_work.o
  CC      drivers/base/class.o
  CC      arch/x86/kernel/kdebugfs.o
  CC      fs/pnode.o
  CC      arch/x86/kernel/alternative.o
  CC      kernel/extable.o
  CC      drivers/base/platform.o
  CC      mm/vmacache.o
  AR      virt/lib/built-in.o
  AR      virt/built-in.o
  CC      fs/splice.o
  CC      lib/clz_ctz.o
  CC      fs/sync.o
  CC      kernel/params.o
  CC      lib/bsearch.o
  CC      lib/find_bit.o
  CC      mm/swap_slots.o
  CC      arch/x86/kernel/i8253.o
  CC      lib/llist.o
  CC      mm/interval_tree.o
  CC      lib/memweight.o
  CC      drivers/base/cpu.o
  CC      fs/utimes.o
  CC      lib/kfifo.o
  CC      arch/x86/kernel/pci-nommu.o
  CC      kernel/kthread.o
  CC      drivers/base/firmware.o
  CC      drivers/base/init.o
  CC      arch/x86/kernel/hw_breakpoint.o
  CC      fs/stack.o
  CC      arch/x86/kernel/tsc.o
  CC      fs/fs_struct.o
  CC      fs/statfs.o
  CC      drivers/base/map.o
  CC      lib/percpu-refcount.o
  CC      mm/list_lru.o
  AR      drivers/block/built-in.o
  AR      drivers/bus/built-in.o
  CC      mm/workingset.o
  CC      mm/debug.o
  CC      drivers/base/devres.o
  CC      drivers/base/attribute_container.o
  AR      drivers/cdrom/built-in.o
  CC      arch/x86/kernel/tsc_msr.o
  CC      lib/percpu_ida.o
  CC      kernel/sys_ni.o
  CC      kernel/nsproxy.o
  CC      mm/gup.o
  CC      fs/fs_pin.o
  CC      lib/rhashtable.o
  CC      arch/x86/kernel/io_delay.o
  CC      drivers/base/transport_class.o
  CC      arch/x86/kernel/rtc.o
  CC      arch/x86/kernel/pci-iommu_table.o
  CC      drivers/base/topology.o
  CC      kernel/notifier.o
  AR      drivers/char/ipmi/built-in.o
  CC      drivers/char/mem.o
  CC      drivers/char/random.o
  CC      fs/nsfs.o
  CC      mm/highmem.o
  CC      drivers/base/container.o
  AR      drivers/clk/bcm/built-in.o
  AR      drivers/clk/imgtec/built-in.o
  AR      drivers/clk/mvebu/built-in.o
  AR      drivers/clk/renesas/built-in.o
  AR      drivers/clk/ti/built-in.o
  CC      arch/x86/kernel/resource.o
  AR      drivers/clk/built-in.o
  CC      lib/reciprocal_div.o
  CC      arch/x86/kernel/process.o
  CC      kernel/ksysfs.o
  CC      lib/once.o
  CC      fs/no-block.o
  CC      drivers/base/property.o
  CC      drivers/char/misc.o
  AR      drivers/char/agp/built-in.o
  CC      mm/memory.o
  CC      lib/refcount.o
  AR      fs/devpts/built-in.o
  AR      fs/exofs/built-in.o
  AR      fs/notify/dnotify/built-in.o
  AR      arch/x86/kernel/acpi/built-in.o
  CC      kernel/cred.o
  CC      lib/usercopy.o
  AR      fs/notify/fanotify/built-in.o
  CC      kernel/reboot.o
  AR      fs/notify/inotify/built-in.o
  AR      fs/notify/built-in.o
  AR      fs/quota/built-in.o
  CC      mm/mincore.o
  CC      fs/ramfs/inode.o
  CC      lib/errseq.o
  CC      kernel/async.o
  AR      drivers/char/built-in.o
  CC      fs/ramfs/file-mmu.o
  CC      lib/string_helpers.o
  CC      arch/x86/kernel/apic/hw_nmi.o
  CC      mm/mlock.o
  CC      fs/anon_inodes.o
  CC      kernel/range.o
  CC      arch/x86/kernel/cpu/intel_cacheinfo.o
  AR      fs/ramfs/ramfs.o
  AR      fs/ramfs/built-in.o
  CC      lib/hexdump.o
  CC      mm/mmap.o
  CC      kernel/smpboot.o
  CC      drivers/base/cacheinfo.o
  AR      arch/x86/kernel/apic/built-in.o
  CC      arch/x86/kernel/fpu/init.o
  CC      lib/kstrtox.o
  AR      fs/built-in.o
  CC      mm/mprotect.o
  CC      mm/mremap.o
  CC      kernel/ucount.o
  CC      lib/iomap.o
  CC      kernel/events/core.o
  CC      arch/x86/kernel/fpu/bugs.o
  AR      drivers/base/power/built-in.o
  AR      drivers/base/test/built-in.o
  CC      drivers/base/dma-mapping.o
  CC      arch/x86/kernel/cpu/scattered.o
  CC      lib/pci_iomap.o
  CC      arch/x86/kernel/fpu/core.o
  CC      arch/x86/kernel/fpu/regset.o
  CC      kernel/irq/irqdesc.o
  CC      arch/x86/kernel/cpu/topology.o
  CC      arch/x86/kernel/cpu/common.o
  CC      kernel/events/ring_buffer.o
  CC      lib/iomap_copy.o
  CC      arch/x86/kernel/fpu/signal.o
  CC      lib/devres.o
  CC      drivers/base/dma-coherent.o
  CC      kernel/irq/handle.o
  CC      arch/x86/kernel/cpu/rdrand.o
  CC      mm/msync.o
  AR      kernel/livepatch/built-in.o
  CC      drivers/clocksource/i8253.o
  CC      arch/x86/kernel/fpu/xstate.o
  CC      kernel/irq/manage.o
  CC      lib/hweight.o
  CC      kernel/events/callchain.o
  CC      lib/syscall.o
  CC      arch/x86/kernel/cpu/match.o
  AR      drivers/firewire/built-in.o
  AR      drivers/clocksource/built-in.o
  CC      arch/x86/kernel/cpu/bugs.o
  CC      kernel/irq/spurious.o
  AR      drivers/base/built-in.o
  AR      drivers/firmware/broadcom/built-in.o
  AR      drivers/firmware/meson/built-in.o
  AR      drivers/firmware/tegra/built-in.o
  AR      drivers/firmware/built-in.o
  AR      drivers/gpu/drm/bridge/synopsys/built-in.o
  AR      drivers/gpu/drm/bridge/built-in.o
  AR      drivers/gpu/drm/hisilicon/built-in.o
  AR      drivers/gpu/drm/i2c/built-in.o
  CC      mm/page_vma_mapped.o
  AR      drivers/gpu/drm/omapdrm/displays/built-in.o
  AR      drivers/gpu/drm/omapdrm/dss/built-in.o
  AR      drivers/gpu/drm/omapdrm/built-in.o
  AR      drivers/gpu/vga/built-in.o
  AR      drivers/gpu/drm/panel/built-in.o
  AR      drivers/gpu/drm/tilcdc/built-in.o
  AR      drivers/hwtracing/intel_th/built-in.o
  AR      drivers/gpu/drm/built-in.o
  CC      lib/strncpy_from_user.o
  CC      arch/x86/kernel/cpu/aperfmperf.o
  AR      drivers/gpu/built-in.o
  CC      lib/strnlen_user.o
  AR      drivers/i2c/algos/built-in.o
  AR      drivers/i2c/busses/built-in.o
  AR      drivers/i2c/muxes/built-in.o
  AR      drivers/i2c/built-in.o
  AR      drivers/idle/built-in.o
  AR      arch/x86/kernel/fpu/built-in.o
  AR      drivers/irqchip/built-in.o
  CC      lib/argv_split.o
  CC      lib/chacha20.o
  CC      mm/pagewalk.o
  AR      drivers/macintosh/built-in.o
  CC      arch/x86/kernel/cpu/intel.o
  AR      drivers/media/common/b2c2/built-in.o
  AR      drivers/media/common/saa7146/built-in.o
  AR      drivers/media/common/siano/built-in.o
  AR      drivers/media/common/v4l2-tpg/built-in.o
  AR      drivers/mfd/built-in.o
  AR      drivers/media/common/built-in.o
  CC      kernel/events/hw_breakpoint.o
  AR      drivers/media/firewire/built-in.o
  CC      kernel/locking/mutex.o
  AR      drivers/media/i2c/soc_camera/built-in.o
  AR      drivers/media/i2c/built-in.o
  AR      drivers/media/mmc/siano/built-in.o
  AR      drivers/media/mmc/built-in.o
  CC      kernel/locking/semaphore.o
  CC      kernel/irq/resend.o
  AR      drivers/media/pci/b2c2/built-in.o
  AR      drivers/media/pci/ddbridge/built-in.o
  AR      drivers/media/pci/dm1105/built-in.o
  AR      drivers/media/pci/mantis/built-in.o
  CC      lib/cmdline.o
  AR      drivers/media/pci/netup_unidvb/built-in.o
  AR      drivers/media/pci/ngene/built-in.o
  AR      drivers/media/pci/pluto2/built-in.o
  AR      drivers/media/pci/pt1/built-in.o
  AR      drivers/media/platform/blackfin/built-in.o
  AR      drivers/media/pci/pt3/built-in.o
  AR      drivers/media/platform/davinci/built-in.o
  AR      drivers/media/pci/saa7146/built-in.o
  AR      drivers/media/platform/meson/built-in.o
  AR      drivers/media/pci/smipcie/built-in.o
  AR      drivers/media/platform/omap/built-in.o
  AR      drivers/media/pci/ttpci/built-in.o
  AR      drivers/media/platform/stm32/built-in.o
  AR      drivers/media/pci/built-in.o
  CC      mm/pgtable-generic.o
  AR      drivers/media/platform/built-in.o
  CC      lib/ctype.o
  CC      arch/x86/kernel/cpu/amd.o
  AR      drivers/media/rc/keymaps/built-in.o
  CC      lib/dec_and_lock.o
  AR      drivers/media/rc/built-in.o
  AR      drivers/media/spi/built-in.o
  AR      drivers/media/tuners/built-in.o
  CC      kernel/irq/chip.o
  AR      drivers/media/usb/b2c2/built-in.o
  AR      drivers/media/usb/dvb-usb/built-in.o
  AR      drivers/media/usb/dvb-usb-v2/built-in.o
  CC      lib/decompress.o
  AR      drivers/media/usb/s2255/built-in.o
  CC      kernel/locking/rwsem.o
  AR      drivers/media/usb/siano/built-in.o
  AR      drivers/media/usb/stkwebcam/built-in.o
  AR      drivers/media/usb/ttusb-budget/built-in.o
  CC      lib/dump_stack.o
  AR      drivers/media/usb/ttusb-dec/built-in.o
  AR      drivers/media/usb/zr364xx/built-in.o
  AR      drivers/media/usb/built-in.o
  CC      lib/earlycpio.o
  AR      drivers/media/built-in.o
  CC      lib/extable.o
  AR      drivers/misc/cb710/built-in.o
  CC      kernel/irq/dummychip.o
  AR      drivers/misc/eeprom/built-in.o
  AR      drivers/misc/lis3lv02d/built-in.o
  CC      kernel/irq/devres.o
  AR      drivers/misc/mic/bus/built-in.o
  AR      drivers/misc/mic/built-in.o
  AR      drivers/misc/ti-st/built-in.o
  AR      drivers/misc/built-in.o
  CC      kernel/locking/percpu-rwsem.o
  AR      drivers/mmc/built-in.o
  CC      mm/rmap.o
  AR      drivers/net/phy/built-in.o
  AR      drivers/net/built-in.o
  CC      kernel/power/qos.o
  AR      drivers/nfc/built-in.o
  AR      drivers/nvme/host/built-in.o
  AR      drivers/nvme/target/built-in.o
  AR      drivers/nvme/built-in.o
  CC      arch/x86/kernel/cpu/cyrix.o
  AR      drivers/pci/dwc/built-in.o
  AR      drivers/perf/built-in.o
  AR      drivers/platform/x86/built-in.o
  AR      drivers/platform/built-in.o
  CC      lib/flex_proportions.o
  AR      drivers/power/built-in.o
  AR      drivers/ptp/built-in.o
  AR      drivers/pwm/built-in.o
  CC      drivers/rtc/rtc-lib.o
  CC      drivers/rtc/rtc-mc146818-lib.o
  CC      kernel/locking/rwsem-xadd.o
  AR      arch/x86/kernel/kprobes/built-in.o
  CC      arch/x86/kernel/ptrace.o
  CC      kernel/irq/autoprobe.o
  CC      lib/idr.o
  CC      arch/x86/kernel/tls.o
  AR      drivers/rtc/built-in.o
  AR      kernel/locking/built-in.o
  CC      arch/x86/kernel/step.o
  AR      drivers/soc/bcm/built-in.o
  AR      drivers/soc/fsl/built-in.o
  CC      arch/x86/kernel/cpu/centaur.o
  AR      drivers/soc/renesas/built-in.o
  AR      drivers/soc/built-in.o
  AR      kernel/power/built-in.o
  AR      drivers/video/backlight/built-in.o
  AR      drivers/tty/ipwireless/built-in.o
  AR      drivers/tty/serial/built-in.o
  AR      kernel/irq/built-in.o
  CC      lib/int_sqrt.o
  AR      drivers/video/fbdev/core/built-in.o
  AR      drivers/tty/vt/built-in.o
  AR      drivers/tty/built-in.o
  CC      lib/ioremap.o
  CC      arch/x86/kernel/cpu/transmeta.o
  AR      drivers/video/fbdev/omap2/omapfb/displays/built-in.o
  AR      drivers/video/fbdev/omap2/omapfb/dss/built-in.o
  CC      mm/vmalloc.o
  AR      drivers/video/fbdev/omap2/omapfb/built-in.o
  AR      drivers/video/fbdev/omap2/built-in.o
  AR      drivers/video/fbdev/built-in.o
  AR      drivers/video/built-in.o
  AR      drivers/built-in.o
  CC      lib/irq_regs.o
  CC      lib/is_single_threaded.o
  AR      kernel/events/built-in.o
  CC      kernel/printk/printk.o
  CC      arch/x86/kernel/cpu/umc.o
  CC      mm/init-mm.o
  CC      kernel/rcu/update.o
  CC      kernel/rcu/sync.o
  CC      arch/x86/kernel/i8237.o
  AR      arch/x86/kernel/cpu/built-in.o
  CC      arch/x86/kernel/reboot.o
  CC      lib/klist.o
  CC      arch/x86/kernel/tsc_sync.o
  CC      kernel/sched/core.o
  CC      kernel/sched/loadavg.o
  CC      arch/x86/kernel/trace_clock.o
  CC      lib/kobject.o
  CC      arch/x86/kernel/sysfb.o
  CC      arch/x86/kernel/perf_regs.o
/home/kisskb/slave/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/home/kisskb/slave/src/kernel/printk/printk.c:186:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
  CC      kernel/rcu/srcutiny.o
  CC      lib/kobject_uevent.o
  AR      kernel/printk/built-in.o
  CC      lib/nmi_backtrace.o
  CC      lib/nodemask.o
  CC      kernel/rcu/tiny.o
  CC      kernel/dma.o
  CC      kernel/up.o
  CC      arch/x86/kernel/unwind_frame.o
  CC      kernel/time/time.o
  CC      kernel/irq_work.o
  CC      kernel/memremap.o
  AS      arch/x86/kernel/head_32.o
  AR      kernel/rcu/built-in.o
  CC      mm/nobootmem.o
  CC      kernel/time/timer.o
  CC      arch/x86/kernel/head32.o
  CC      kernel/sched/clock.o
  CC      kernel/sched/cputime.o
  CC      lib/plist.o
  CC      arch/x86/kernel/ebda.o
  CC      lib/radix-tree.o
  CC      kernel/time/hrtimer.o
  CC      lib/ratelimit.o
  CC      mm/memblock.o
  CC      mm/dmapool.o
  CC      arch/x86/kernel/platform-quirks.o
  CC      mm/slub.o
  CC      mm/early_ioremap.o
  CC      kernel/sched/idle_task.o
  CC      lib/rbtree.o
  LDS     arch/x86/kernel/vmlinux.lds
  AR      arch/x86/kernel/built-in.o
  CC      kernel/time/timekeeping.o
  AR      arch/x86/built-in.o
  CC      kernel/time/ntp.o
  CC      lib/seq_buf.o
  CC      lib/sha1.o
  CC      kernel/sched/fair.o
  CC      lib/show_mem.o
  CC      kernel/time/clocksource.o
  CC      kernel/time/jiffies.o
  CC      kernel/time/timer_list.o
  CC      kernel/time/timeconv.o
  CC      lib/siphash.o
  CC      kernel/time/timecounter.o
  CC      kernel/time/alarmtimer.o
  CC      lib/string.o
  CC      kernel/sched/rt.o
  CC      kernel/time/posix-stubs.o
  AR      mm/built-in.o
  CC      kernel/sched/deadline.o
  CC      kernel/time/clockevents.o
  CC      kernel/time/tick-common.o
  CC      lib/timerqueue.o
  CC      kernel/sched/wait.o
  CC      kernel/sched/wait_bit.o
  CC      lib/vsprintf.o
  CC      kernel/sched/swait.o
  CC      kernel/sched/completion.o
  CC      kernel/sched/idle.o
  CC      lib/win_minmax.o
  AR      kernel/time/built-in.o
  AR      kernel/sched/built-in.o
  AR      kernel/built-in.o
  AR      lib/lib.a
  EXPORTS lib/lib-ksyms.o
  AR      lib/built-in.o
  GEN     .version
  CHK     include/generated/compile.h
  UPD     include/generated/compile.h
  CC      init/version.o
  AR      init/built-in.o
  AR      built-in.o
  LD      vmlinux.o
  MODPOST vmlinux.o
  LD      vmlinux
  SORTEX  vmlinux
  SYSMAP  System.map
  CC      arch/x86/boot/a20.o
  AS      arch/x86/boot/bioscall.o
  CC      arch/x86/boot/cmdline.o
  AS      arch/x86/boot/copy.o
  CC      arch/x86/boot/cpu.o
  CC      arch/x86/boot/cpuflags.o
  CC      arch/x86/boot/cpucheck.o
  CC      arch/x86/boot/early_serial_console.o
  CC      arch/x86/boot/edd.o
  CC      arch/x86/boot/main.o
  CC      arch/x86/boot/memory.o
  CC      arch/x86/boot/pm.o
  AS      arch/x86/boot/pmjump.o
  CC      arch/x86/boot/printf.o
  CC      arch/x86/boot/regs.o
  CC      arch/x86/boot/string.o
  CC      arch/x86/boot/tty.o
  CC      arch/x86/boot/video.o
  CC      arch/x86/boot/video-mode.o
  CC      arch/x86/boot/version.o
  CC      arch/x86/boot/video-vga.o
  LDS     arch/x86/boot/compressed/vmlinux.lds
  CC      arch/x86/boot/video-vesa.o
  CC      arch/x86/boot/video-bios.o
  AS      arch/x86/boot/compressed/head_32.o
  HOSTCC  arch/x86/boot/tools/build
  VOFFSET arch/x86/boot/compressed/../voffset.h
  CC      arch/x86/boot/compressed/string.o
  CC      arch/x86/boot/compressed/cmdline.o
  CC      arch/x86/boot/compressed/error.o
  OBJCOPY arch/x86/boot/compressed/vmlinux.bin
  HOSTCC  arch/x86/boot/compressed/mkpiggy
  CC      arch/x86/boot/compressed/cpuflags.o
  CC      arch/x86/boot/compressed/misc.o
  GZIP    arch/x86/boot/compressed/vmlinux.bin.gz
  MKPIGGY arch/x86/boot/compressed/piggy.S
  AS      arch/x86/boot/compressed/piggy.o
  DATAREL arch/x86/boot/compressed/vmlinux
  LD      arch/x86/boot/compressed/vmlinux
  ZOFFSET arch/x86/boot/zoffset.h
  OBJCOPY arch/x86/boot/vmlinux.bin
  AS      arch/x86/boot/header.o
  LD      arch/x86/boot/setup.elf
  OBJCOPY arch/x86/boot/setup.bin
  BUILD   arch/x86/boot/bzImage
Setup is 13484 bytes (padded to 13824 bytes).
System is 537 kB
CRC 7f4e1482
Kernel: arch/x86/boot/bzImage is ready  (#1)
make[1]: Leaving directory '/home/kisskb/slave/build/linus_i386-allnoconfig_i386'
Completed OK
# rm -rf /home/kisskb/slave/build/linus_i386-allnoconfig_i386
# Build took: 0:00:23.622202