# git rev-parse -q --verify b39ab98e2f4728d98973fd1bc531e3c4cbccb21c^{commit} b39ab98e2f4728d98973fd1bc531e3c4cbccb21c already have revision, skipping fetch # git checkout -q -f -B kisskb b39ab98e2f4728d98973fd1bc531e3c4cbccb21c # git clean -qxdf # git log -1 commit b39ab98e2f4728d98973fd1bc531e3c4cbccb21c Author: Linus Torvalds Date: Mon Oct 30 10:09:56 2017 -0700 Mark 'ioremap_page_range()' as possibly sleeping It turns out that some drivers seem to think it's ok to remap page ranges from within interrupts and even NMI's. That is definitely not the case, since the page table build-up is simply not interrupt-safe. This showed up in the zero-day robot that reported it for the ACPI APEI GHES ("Generic Hardware Error Source") driver. Normally it had been hidden by the fact that no page table operations had been needed because the vmalloc area had been set up by other things. Apparently due to a recent change to the GHEI driver: commit 77b246b32b2c ("acpi: apei: check for pending errors when probing GHES entries") 0day actually caught a case during bootup whenthe ioremap called down to page allocation. But that recent change only showed the symptom, it wasn't the root cause of the problem. Hopefully it is limited to just that one driver. If you need to access random physical memory, you either need to ioremap in process context, or you need to use the FIXMAP facility to set one particular fixmap entry to the required mapping - that can be done safely. Cc: Borislav Petkov Cc: Len Brown Cc: Tony Luck Cc: Fengguang Wu Cc: Tyler Baicar Cc: Will Deacon Signed-off-by: Linus Torvalds # < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-gcc --version # < git log --format=%s --max-count=1 b39ab98e2f4728d98973fd1bc531e3c4cbccb21c # < make -j 48 ARCH=arm O=/home/kisskb/slave/build/linus_efm32_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi- efm32_defconfig # make -j 48 ARCH=arm O=/home/kisskb/slave/build/linus_efm32_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi- make[1]: Entering directory '/home/kisskb/slave/build/linus_efm32_defconfig_arm' GEN ./Makefile scripts/kconfig/conf --silentoldconfig Kconfig CHK include/config/kernel.release SYSHDR arch/arm/include/generated/uapi/asm/unistd-common.h SYSHDR arch/arm/include/generated/uapi/asm/unistd-eabi.h SYSHDR arch/arm/include/generated/uapi/asm/unistd-oabi.h GEN ./Makefile WRAP arch/arm/include/generated/uapi/asm/bitsperlong.h WRAP arch/arm/include/generated/uapi/asm/errno.h WRAP arch/arm/include/generated/uapi/asm/ioctl.h WRAP arch/arm/include/generated/uapi/asm/ipcbuf.h WRAP arch/arm/include/generated/uapi/asm/msgbuf.h WRAP arch/arm/include/generated/uapi/asm/poll.h WRAP arch/arm/include/generated/uapi/asm/param.h WRAP arch/arm/include/generated/uapi/asm/resource.h CHK include/generated/uapi/linux/version.h WRAP arch/arm/include/generated/uapi/asm/shmbuf.h WRAP arch/arm/include/generated/uapi/asm/siginfo.h WRAP arch/arm/include/generated/uapi/asm/sembuf.h WRAP arch/arm/include/generated/uapi/asm/socket.h WRAP arch/arm/include/generated/uapi/asm/sockios.h UPD include/generated/uapi/linux/version.h WRAP arch/arm/include/generated/uapi/asm/termbits.h WRAP arch/arm/include/generated/uapi/asm/termios.h WRAP arch/arm/include/generated/asm/clkdev.h WRAP arch/arm/include/generated/asm/current.h WRAP arch/arm/include/generated/asm/early_ioremap.h WRAP arch/arm/include/generated/asm/emergency-restart.h WRAP arch/arm/include/generated/asm/exec.h WRAP arch/arm/include/generated/asm/extable.h WRAP arch/arm/include/generated/asm/irq_regs.h WRAP arch/arm/include/generated/asm/kdebug.h WRAP arch/arm/include/generated/asm/local.h WRAP arch/arm/include/generated/asm/local64.h WRAP arch/arm/include/generated/asm/mm-arch-hooks.h WRAP arch/arm/include/generated/asm/msi.h WRAP arch/arm/include/generated/asm/parport.h WRAP arch/arm/include/generated/asm/preempt.h WRAP arch/arm/include/generated/asm/rwsem.h WRAP arch/arm/include/generated/asm/seccomp.h WRAP arch/arm/include/generated/asm/segment.h WRAP arch/arm/include/generated/asm/serial.h WRAP arch/arm/include/generated/asm/simd.h WRAP arch/arm/include/generated/asm/sizes.h WRAP arch/arm/include/generated/asm/timex.h WRAP arch/arm/include/generated/asm/trace_clock.h WRAP arch/arm/include/generated/asm/unaligned.h HOSTCC scripts/kallsyms HOSTCC scripts/dtc/dtc.o HOSTCC scripts/dtc/flattree.o HOSTCC scripts/dtc/fstree.o 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 CC scripts/mod/empty.o HOSTCC scripts/dtc/util.o SHIPPED scripts/dtc/dtc-parser.tab.h SHIPPED scripts/dtc/dtc-lexer.lex.c SHIPPED scripts/dtc/dtc-parser.tab.c HOSTCC scripts/mod/mk_elfconfig CC scripts/mod/devicetable-offsets.s HOSTCC scripts/dtc/dtc-parser.tab.o HOSTCC scripts/dtc/dtc-lexer.lex.o CHK scripts/mod/devicetable-offsets.h UPD include/config/kernel.release UPD scripts/mod/devicetable-offsets.h Using /home/kisskb/slave/src as source for kernel CHK include/generated/utsrelease.h MKELF scripts/mod/elfconfig.h UPD include/generated/utsrelease.h HOSTCC scripts/mod/modpost.o HOSTCC scripts/mod/file2alias.o HOSTCC scripts/mod/sumversion.o SYSNR arch/arm/include/generated/asm/unistd-nr.h GEN arch/arm/include/generated/asm/mach-types.h SYSTBL arch/arm/include/generated/calls-eabi.S SYSTBL arch/arm/include/generated/calls-oabi.S 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/arm/kernel/asm-offsets.s HOSTLD scripts/dtc/dtc CHK include/generated/asm-offsets.h UPD include/generated/asm-offsets.h CALL /home/kisskb/slave/src/scripts/checksyscalls.sh HOSTLD scripts/mod/modpost CC init/main.o CHK include/generated/compile.h CC init/noinitramfs.o CC init/do_mounts.o AR usr/built-in.o CC init/calibrate.o CC init/init_task.o UPD include/generated/compile.h CC init/version.o CC arch/arm/kernel/elf.o AS arch/arm/kernel/entry-common.o CC arch/arm/kernel/irq.o CC arch/arm/kernel/opcodes.o CC arch/arm/kernel/process.o CC arch/arm/common/firmware.o CC arch/arm/kernel/ptrace.o CC arch/arm/kernel/reboot.o AR arch/arm/probes/built-in.o CC arch/arm/kernel/sys_arm.o CC arch/arm/kernel/time.o CC arch/arm/kernel/traps.o CC arch/arm/kernel/setup.o CC arch/arm/kernel/atags_parse.o CC arch/arm/kernel/v7m.o AS arch/arm/kernel/sigreturn_codes.o CC arch/arm/kernel/stacktrace.o CC arch/arm/kernel/suspend.o AR arch/arm/net/built-in.o CC arch/arm/kernel/devtree.o CC arch/arm/kernel/unwind.o CC arch/arm/kernel/io.o AS arch/arm/kernel/sleep.o LDS arch/arm/kernel/vmlinux.lds AS arch/arm/kernel/head-nommu.o CC arch/arm/kernel/return_address.o AS arch/arm/kernel/entry-v7m.o CC arch/arm/kernel/signal.o AS arch/arm/mm/proc-v7m.o CC arch/arm/mm/dma-mapping-nommu.o AS arch/arm/mm/cache-v7m.o CC arch/arm/mm/init.o CC arch/arm/mm/extable.o CC arch/arm/mm/iomap.o CC arch/arm/mm/fault.o CC arch/arm/mm/nommu.o AS arch/arm/mm/abort-nommu.o AS arch/arm/mm/cache-nop.o AS arch/arm/mm/pabort-legacy.o AR arch/arm/crypto/built-in.o AR arch/arm/firmware/built-in.o CC arch/arm/mach-efm32/dtmachine.o AR certs/built-in.o AR arch/arm/common/built-in.o AR ipc/built-in.o AR arch/arm/mach-efm32/built-in.o CC security/commoncap.o CC mm/filemap.o CC mm/mempool.o CC mm/page_alloc.o CC mm/page-writeback.o CC mm/readahead.o CC mm/swap.o CC mm/truncate.o CC mm/vmscan.o CC mm/oom_kill.o CC fs/read_write.o CC mm/maccess.o CC mm/backing-dev.o CC fs/open.o CC mm/vmstat.o CC mm/mm_init.o CC mm/shmem.o CC mm/mmzone.o CC mm/percpu.o CC mm/slab_common.o CC mm/util.o CC mm/swap_slots.o CC fs/file_table.o CC mm/mmu_context.o CC fs/stat.o CC kernel/fork.o CC mm/compaction.o CC mm/vmacache.o CC fs/super.o CC mm/list_lru.o CC fs/char_dev.o CC mm/interval_tree.o CC mm/workingset.o CC fs/exec.o CC fs/pipe.o CC crypto/api.o CC block/bio.o CC fs/namei.o CC block/elevator.o CC fs/fcntl.o CC block/blk-core.o AR arch/arm/mm/built-in.o AR sound/built-in.o CC block/blk-tag.o CC fs/ioctl.o AR firmware/built-in.o AR arch/arm/kernel/built-in.o CC mm/debug.o CC mm/nommu.o CC mm/init-mm.o CC mm/nobootmem.o CC mm/fadvise.o AR init/mounts.o AS arch/arm/lib/ashldi3.o CC mm/memblock.o CC mm/dmapool.o AR init/built-in.o CC mm/slub.o AS arch/arm/lib/ashrdi3.o CC net/socket.o CC mm/early_ioremap.o AS arch/arm/lib/backtrace.o CC block/blk-sysfs.o AS arch/arm/lib/bswapsdi2.o AS arch/arm/lib/call_with_stack.o AS arch/arm/lib/changebit.o CC fs/readdir.o AR virt/lib/built-in.o CC fs/select.o AS arch/arm/lib/clearbit.o AR virt/built-in.o AR drivers/amba/built-in.o CC fs/dcache.o AR drivers/auxdisplay/built-in.o AS arch/arm/lib/csumipv6.o CC kernel/exec_domain.o CC block/blk-settings.o AR net/802/built-in.o CC block/blk-flush.o CC lib/lockref.o CC drivers/base/component.o AR drivers/block/built-in.o AS arch/arm/lib/csumpartial.o DTC arch/arm/boot/dts/efm32gg-dk3750.dtb CC net/bpf/test_run.o CC fs/inode.o AR drivers/bus/built-in.o CC net/ethernet/eth.o CC fs/attr.o AR drivers/cdrom/built-in.o AS arch/arm/lib/csumpartialcopy.o CC fs/bad_inode.o CC crypto/cipher.o AS arch/arm/lib/csumpartialcopyuser.o CC fs/file.o CC drivers/char/random.o CC drivers/char/mem.o CC fs/filesystems.o CC block/blk-ioc.o CC lib/bcd.o AS arch/arm/lib/delay-loop.o CC arch/arm/lib/delay.o CC block/blk-map.o CC block/blk-exec.o AR security/built-in.o CC lib/div64.o AS arch/arm/lib/div64.o CC block/blk-merge.o CC fs/namespace.o CC fs/seq_file.o AS arch/arm/lib/findbit.o CC fs/xattr.o CC net/core/sock.o AS arch/arm/lib/io-readsb.o AS arch/arm/lib/io-readsl.o CC fs/fs-writeback.o CC fs/libfs.o CC drivers/base/core.o CC fs/pnode.o AS arch/arm/lib/io-readsw-armv4.o AS arch/arm/lib/io-writesb.o CC fs/splice.o CC fs/sync.o CC fs/utimes.o CC kernel/panic.o AS arch/arm/lib/io-writesl.o CC block/blk-softirq.o AS arch/arm/lib/io-writesw-armv4.o CC fs/stack.o AS arch/arm/lib/lib1funcs.o CC fs/fs_struct.o CC fs/statfs.o AS arch/arm/lib/lshrdi3.o AS arch/arm/lib/memchr.o AS arch/arm/lib/memcpy.o CC block/blk-timeout.o CC block/blk-lib.o AS arch/arm/lib/memmove.o CC crypto/compress.o CC lib/sort.o CC block/blk-mq.o AS arch/arm/lib/memset.o CC block/blk-mq-tag.o AS arch/arm/lib/memzero.o AS arch/arm/lib/muldi3.o CC block/blk-stat.o AS arch/arm/lib/setbit.o AR net/ethernet/built-in.o AR net/bpf/built-in.o AS arch/arm/lib/strrchr.o AS arch/arm/lib/testchangebit.o AS arch/arm/lib/strchr.o CC lib/parser.o CC net/core/request_sock.o AS arch/arm/lib/testclearbit.o CC kernel/cpu.o CC fs/fs_pin.o CC block/blk-mq-sysfs.o CC fs/nsfs.o AS arch/arm/lib/testsetbit.o AS arch/arm/lib/ucmpdi2.o CC net/ipv6/addrconf_core.o CC drivers/char/misc.o CC fs/buffer.o CC lib/debug_locks.o CC kernel/exit.o CC kernel/softirq.o CC lib/random32.o CC lib/bust_spinlocks.o CC fs/block_dev.o AR arch/arm/lib/lib.a EXPORTS arch/arm/lib/lib-ksyms.o CC fs/direct-io.o CC lib/kasprintf.o CC block/blk-mq-cpumap.o AR arch/arm/lib/built-in.o CC fs/mpage.o CC block/blk-mq-sched.o CC fs/proc_namespace.o CC net/ipv4/route.o CC net/ipv4/inetpeer.o CC lib/bitmap.o AR fs/exofs/built-in.o AR fs/devpts/built-in.o CC net/netlink/af_netlink.o CC fs/exportfs/expfs.o CC crypto/memneq.o AR drivers/char/agp/built-in.o CC fs/kernfs/mount.o CC lib/scatterlist.o CC block/ioctl.o AR fs/notify/dnotify/built-in.o CC fs/ext2/balloc.o CC lib/gcd.o AR fs/notify/fanotify/built-in.o AR fs/quota/built-in.o AR fs/notify/inotify/built-in.o CC net/core/skbuff.o CC block/genhd.o AR fs/notify/built-in.o CC fs/proc/nommu.o CC fs/romfs/storage.o CC fs/sysfs/file.o CC fs/ramfs/inode.o CC block/partition-generic.o CC lib/list_sort.o CC lib/lcm.o CC block/ioprio.o CC block/badblocks.o CC fs/anon_inodes.o AR drivers/char/built-in.o CC lib/uuid.o CC fs/timerfd.o CC block/noop-iosched.o CC fs/binfmt_script.o CC block/partitions/check.o AR drivers/char/ipmi/built-in.o CC fs/binfmt_flat.o CC fs/drop_caches.o CC crypto/crypto_wq.o CC lib/iov_iter.o CC lib/flex_array.o CC block/mq-deadline.o AR mm/built-in.o CC kernel/resource.o CC fs/romfs/super.o CC lib/clz_ctz.o AR fs/exportfs/exportfs.o CC lib/bsearch.o CC fs/kernfs/inode.o CC lib/find_bit.o CC fs/fhandle.o AR fs/exportfs/built-in.o CC kernel/sysctl.o CC fs/romfs/mmap-nommu.o CC block/kyber-iosched.o CC lib/llist.o CC drivers/clk/clk-devres.o CC net/ipv6/exthdrs_core.o CC lib/memweight.o CC lib/kfifo.o CC net/ipv6/ip6_checksum.o CC lib/percpu-refcount.o CC lib/percpu_ida.o CC fs/ramfs/file-nommu.o CC fs/sysfs/symlink.o CC fs/sysfs/dir.o CC lib/rhashtable.o CC lib/reciprocal_div.o CC lib/once.o CC lib/refcount.o CC net/ipv6/ip6_icmp.o CC fs/proc/task_nommu.o CC fs/proc/inode.o CC crypto/algapi.o CC net/ipv4/protocol.o CC block/partitions/msdos.o CC net/ipv4/ip_input.o CC drivers/clk/clk-bulk.o CC drivers/base/bus.o CC drivers/base/dd.o CC lib/usercopy.o CC crypto/scatterwalk.o CC fs/ext2/dir.o CC fs/ext2/file.o CC lib/errseq.o CC lib/string_helpers.o CC lib/hexdump.o CC fs/ext2/ialloc.o CC lib/kstrtox.o CC fs/ext2/inode.o CC lib/pci_iomap.o CC lib/iomap_copy.o CC fs/sysfs/mount.o CC net/core/datagram.o CC crypto/proc.o CC net/ipv4/ip_fragment.o CC fs/kernfs/dir.o CC fs/kernfs/file.o CC fs/sysfs/group.o CC drivers/clk/clkdev.o CC lib/devres.o CC drivers/clk/clk.o AR fs/romfs/romfs.o CC lib/hweight.o AR fs/romfs/built-in.o CC net/packet/af_packet.o CC net/sched/sch_generic.o CC net/sched/sch_mq.o CC lib/bitrev.o CC lib/rational.o CC kernel/sysctl_binary.o CC fs/ext2/ioctl.o CC lib/crc-itu-t.o HOSTCC lib/gen_crc32table CC kernel/capability.o CC lib/crc7.o AR fs/ramfs/ramfs.o CC fs/proc/root.o AR fs/ramfs/built-in.o CC kernel/ptrace.o CC fs/proc/base.o /home/kisskb/slave/src/lib/rhashtable.c: In function 'rht_deferred_worker': /home/kisskb/slave/src/lib/rhashtable.c:300:2: warning: 'next' may be used uninitialized in this function [-Wuninitialized] /home/kisskb/slave/src/lib/rhashtable.c:265:28: note: 'next' was declared here CC lib/genalloc.o CC net/ipv6/output_core.o CC lib/swiotlb.o CC crypto/aead.o CC lib/iommu-helper.o CC fs/proc/generic.o CC net/ipv6/protocol.o CC lib/iommu-common.o CC fs/proc/array.o CC drivers/base/syscore.o CC crypto/ablkcipher.o CC net/core/stream.o CC net/ipv4/ip_forward.o CC drivers/base/driver.o CC lib/syscall.o AR fs/sysfs/built-in.o CC block/partitions/efi.o CC lib/nlattr.o CC net/core/scm.o CC net/ipv6/ip6_offload.o CC lib/atomic64.o CC fs/ext2/namei.o CC fs/proc/fd.o CC fs/ext2/super.o CC lib/dynamic_queue_limits.o CC net/ipv4/ip_options.o CC net/ipv4/ip_output.o CC fs/proc/proc_tty.o CC lib/strncpy_from_user.o CC lib/strnlen_user.o CC fs/ext2/symlink.o CC lib/net_utils.o CC crypto/blkcipher.o CC kernel/signal.o CC kernel/user.o CC lib/sbitmap.o CC drivers/base/class.o CC drivers/base/platform.o CC lib/argv_split.o CC kernel/sys.o CC fs/kernfs/symlink.o CC lib/bug.o CC lib/chacha20.o CC kernel/umh.o CC lib/ctype.o CC lib/cmdline.o CC kernel/workqueue.o CC lib/dec_and_lock.o CC net/ipv6/tcpv6_offload.o CC kernel/pid.o CC net/ipv6/exthdrs_offload.o CC fs/proc/cmdline.o CC net/ipv4/ip_sockglue.o CC net/core/gen_stats.o CC lib/decompress.o CC drivers/base/cpu.o CC lib/dma-noop.o CC fs/proc/consoles.o CC net/netlink/genetlink.o CC fs/proc/cpuinfo.o CC lib/dump_stack.o CC lib/earlycpio.o CC lib/extable.o CC crypto/skcipher.o CC lib/fdt.o CC lib/fdt_empty_tree.o AR net/sched/built-in.o CC lib/fdt_rw.o CC lib/fdt_ro.o CC kernel/task_work.o CC drivers/clk/clk-divider.o AR fs/kernfs/built-in.o CC fs/proc/devices.o CC drivers/base/firmware.o CC lib/fdt_strerror.o CC lib/fdt_sw.o CC net/unix/af_unix.o CC drivers/base/init.o CC lib/fdt_wip.o CC crypto/echainiv.o CC net/core/gen_estimator.o AR block/partitions/built-in.o CC kernel/extable.o CC lib/flex_proportions.o CC net/ipv4/inet_hashtables.o CC lib/idr.o AR block/built-in.o CC drivers/base/map.o CC lib/int_sqrt.o CC lib/irq_regs.o CC lib/is_single_threaded.o CC lib/kobject.o CC lib/klist.o CC lib/kobject_uevent.o CC drivers/base/devres.o CC fs/proc/interrupts.o CC crypto/ahash.o CC fs/proc/loadavg.o CC net/core/net_namespace.o CC lib/nmi_backtrace.o CC net/core/secure_seq.o CC drivers/base/attribute_container.o CC lib/nodemask.o CC lib/plist.o CC fs/proc/meminfo.o CC lib/radix-tree.o CC drivers/base/transport_class.o CC kernel/params.o CC drivers/base/topology.o CC fs/proc/stat.o /home/kisskb/slave/src/net/core/gen_stats.c: In function '__gnet_stats_copy_basic': /home/kisskb/slave/src/net/core/gen_stats.c:149:19: warning: 'seq' may be used uninitialized in this function [-Wuninitialized] CC lib/ratelimit.o CC drivers/base/container.o CC net/ipv4/inet_timewait_sock.o CC lib/rbtree.o CC net/unix/garbage.o AR fs/ext2/ext2.o CC lib/seq_buf.o CC lib/sha1.o AR fs/ext2/built-in.o CC kernel/kthread.o CC lib/show_mem.o CC fs/proc/uptime.o CC kernel/sys_ni.o CC drivers/base/property.o CC crypto/shash.o CC fs/proc/version.o CC lib/siphash.o CC kernel/nsproxy.o CC kernel/notifier.o CC net/core/flow_dissector.o AR net/ipv6/built-in.o CC lib/string.o CC lib/timerqueue.o CC net/sysctl_net.o CC fs/proc/softirqs.o CC drivers/base/cacheinfo.o CC lib/vsprintf.o CC drivers/base/devtmpfs.o CC kernel/ksysfs.o CC net/core/sysctl_net_core.o CC net/core/dev.o CC lib/win_minmax.o CC kernel/cred.o GEN lib/crc32table.h CC fs/proc/namespaces.o CC net/unix/sysctl_net_unix.o CC drivers/base/dma-mapping.o CC lib/crc32.o AR drivers/base/test/built-in.o CC fs/proc/self.o CC crypto/akcipher.o CC fs/proc/thread_self.o CC drivers/base/dma-coherent.o CC net/core/ethtool.o CC drivers/base/power/sysfs.o CC drivers/clk/clk-fixed-factor.o CC drivers/base/power/generic_ops.o CC crypto/kpp.o CC fs/proc/proc_sysctl.o CC crypto/acompress.o CC net/ipv4/inet_connection_sock.o CC drivers/clocksource/timer-of.o CC fs/proc/proc_net.o CC net/ipv4/tcp.o AR drivers/crypto/built-in.o CC kernel/reboot.o AR net/packet/built-in.o CC kernel/async.o AR drivers/firewire/built-in.o CC net/ipv4/tcp_input.o CC net/ipv4/tcp_output.o CC net/ipv4/tcp_timer.o CC kernel/range.o CC crypto/scompress.o CC kernel/smpboot.o CC crypto/testmgr.o CC crypto/algboss.o AR net/netlink/built-in.o CC kernel/ucount.o CC drivers/gpio/devres.o CC kernel/groups.o CC drivers/base/power/common.o CC net/core/dev_addr_lists.o CC kernel/bpf/core.o AR drivers/firmware/broadcom/built-in.o CC net/ipv4/tcp_ipv4.o CC drivers/clocksource/timer-probe.o CC net/ipv4/tcp_minisocks.o AR drivers/firmware/meson/built-in.o CC fs/proc/kmsg.o CC drivers/clk/clk-fixed-rate.o CC crypto/hmac.o CC crypto/crypto_null.o AR drivers/firmware/tegra/built-in.o CC crypto/sha256_generic.o CC crypto/aes_generic.o CC crypto/rng.o AR drivers/firmware/built-in.o AR kernel/livepatch/built-in.o CC drivers/base/power/qos.o CC kernel/printk/printk.o /home/kisskb/slave/src/net/core/flow_dissector.c: In function '__skb_flow_dissect': /home/kisskb/slave/src/net/core/flow_dissector.c:638:7: warning: 'vlan' may be used uninitialized in this function [-Wuninitialized] CC kernel/power/qos.o CC kernel/irq/irqdesc.o CC kernel/locking/mutex.o CC drivers/base/power/runtime.o CC drivers/gpio/gpiolib.o CC kernel/rcu/update.o CC drivers/base/power/wakeirq.o CC kernel/freezer.o CC drivers/base/power/main.o CC crypto/drbg.o CC drivers/clocksource/mmio.o CC drivers/clocksource/time-efm32.o CC kernel/up.o CC net/core/dst.o CC crypto/jitterentropy.o CC crypto/jitterentropy-kcapi.o AR drivers/gpu/drm/hisilicon/built-in.o CC drivers/clk/clk-gate.o CC kernel/time/time.o CC drivers/clk/clk-multiplier.o CC kernel/sched/core.o AR drivers/gpu/drm/bridge/synopsys/built-in.o AR drivers/gpu/drm/i2c/built-in.o AR crypto/crypto.o AR drivers/gpu/drm/bridge/built-in.o AR crypto/crypto_algapi.o AR crypto/crypto_blkcipher.o AR crypto/crypto_hash.o CC kernel/sched/loadavg.o AR drivers/gpu/drm/omapdrm/displays/built-in.o AR drivers/gpu/drm/panel/built-in.o CC kernel/kallsyms.o AR drivers/gpu/drm/omapdrm/dss/built-in.o AR drivers/gpu/drm/tilcdc/built-in.o AR drivers/gpu/drm/omapdrm/built-in.o CC kernel/irq_work.o CC kernel/utsname_sysctl.o CC kernel/cpu_pm.o AR drivers/gpu/drm/built-in.o AR crypto/crypto_acompress.o CC drivers/hwmon/hwmon.o CC kernel/memremap.o AR crypto/cryptomgr.o CC drivers/clk/clk-mux.o AR drivers/clocksource/built-in.o CC drivers/clk/clk-fractional-divider.o CC drivers/clk/clk-composite.o AR fs/proc/proc.o CC drivers/clk/clk-gpio.o AR net/unix/unix.o AR fs/proc/built-in.o AR drivers/hwtracing/intel_th/built-in.o AR drivers/gpu/vga/built-in.o CC drivers/base/power/wakeup.o AR net/unix/built-in.o CC kernel/locking/semaphore.o CC net/core/netevent.o AR fs/built-in.o CC drivers/base/power/clock_ops.o AR drivers/gpu/built-in.o CC kernel/irq/handle.o CC drivers/i2c/i2c-boardinfo.o CC drivers/i2c/i2c-core-base.o CC drivers/i2c/i2c-core-smbus.o CC net/core/neighbour.o CC drivers/i2c/i2c-core-of.o CC kernel/locking/rwsem.o CC net/ipv4/tcp_cong.o CC kernel/sched/clock.o CC kernel/power/main.o CC kernel/rcu/srcutree.o CC kernel/rcu/sync.o CC kernel/locking/percpu-rwsem.o CC kernel/rcu/tree.o CC kernel/rcu/rcu_segcblist.o CC drivers/clk/clk-conf.o AR drivers/idle/built-in.o CC kernel/time/hrtimer.o CC kernel/time/timer.o AR crypto/jitterentropy_rng.o CC drivers/irqchip/irqchip.o AR drivers/macintosh/built-in.o CC drivers/irqchip/irq-nvic.o CC net/ipv4/tcp_metrics.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 net/ipv4/tcp_fastopen.o CC drivers/clk/clk-efm32gg.o CC net/ipv4/tcp_rate.o CC net/core/rtnetlink.o AR drivers/i2c/algos/built-in.o AR crypto/built-in.o CC net/ipv4/tcp_recovery.o CC kernel/locking/rtmutex.o CC kernel/irq/manage.o /home/kisskb/slave/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields': /home/kisskb/slave/src/kernel/rcu/srcutree.c:100:33: warning: 'levelspread[]' may be used uninitialized in this function [-Wuninitialized] /home/kisskb/slave/src/kernel/rcu/srcutree.c:67:6: note: 'levelspread[]' was declared here CC drivers/i2c/busses/i2c-efm32.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 CC kernel/sched/cputime.o CC net/core/utils.o CC kernel/locking/rwsem-xadd.o AR drivers/i2c/muxes/built-in.o CC net/core/link_watch.o CC kernel/sched/idle_task.o CC kernel/sched/fair.o AR drivers/media/common/b2c2/built-in.o CC kernel/printk/printk_safe.o AR drivers/clk/ti/built-in.o AR lib/lib.a CC drivers/gpio/gpiolib-legacy.o CC net/core/filter.o CC drivers/gpio/gpiolib-devprop.o AR drivers/media/common/siano/built-in.o AR drivers/media/common/saa7146/built-in.o CC net/core/sock_diag.o CC net/core/dev_ioctl.o EXPORTS lib/lib-ksyms.o AR drivers/clk/built-in.o CC drivers/gpio/gpiolib-of.o AR drivers/hwmon/built-in.o AR lib/built-in.o CC kernel/irq/spurious.o CC net/core/tso.o AR drivers/media/common/v4l2-tpg/built-in.o AR drivers/mfd/built-in.o CC net/core/fib_notifier.o CC net/core/sock_reuseport.o AR drivers/media/common/built-in.o CC kernel/power/process.o AR drivers/irqchip/built-in.o CC drivers/mmc/host/mmc_spi.o AR drivers/media/firewire/built-in.o AR drivers/misc/cb710/built-in.o CC net/ipv4/tcp_ulp.o CC kernel/time/timekeeping.o AR drivers/i2c/busses/built-in.o CC drivers/misc/eeprom/eeprom_93cx6.o AR drivers/media/i2c/soc_camera/built-in.o CC drivers/mmc/core/core.o CC drivers/mmc/core/bus.o AR kernel/bpf/built-in.o CC drivers/mmc/core/host.o AR kernel/printk/built-in.o AR drivers/misc/lis3lv02d/built-in.o AR drivers/media/i2c/built-in.o CC drivers/mmc/core/mmc.o CC drivers/gpio/gpiolib-sysfs.o CC kernel/irq/resend.o AR drivers/misc/mic/bus/built-in.o /home/kisskb/slave/src/drivers/gpio/gpiolib-of.c: In function 'of_gpiochip_add': /home/kisskb/slave/src/drivers/gpio/gpiolib-of.c:264:8: warning: 'dflags' may be used uninitialized in this function [-Wuninitialized] /home/kisskb/slave/src/drivers/gpio/gpiolib-of.c:250:19: note: 'dflags' was declared here /home/kisskb/slave/src/drivers/gpio/gpiolib-of.c:264:8: warning: 'lflags' may be used uninitialized in this function [-Wuninitialized] /home/kisskb/slave/src/drivers/gpio/gpiolib-of.c:249:25: note: 'lflags' was declared here AR drivers/base/power/built-in.o AR drivers/misc/mic/built-in.o AR drivers/misc/ti-st/built-in.o CC kernel/sched/rt.o CC kernel/irq/chip.o AR drivers/base/built-in.o AR kernel/locking/built-in.o CC drivers/mtd/mtdcore.o CC net/ipv4/datagram.o CC net/ipv4/tcp_offload.o AR drivers/media/mmc/siano/built-in.o CC net/ipv4/raw.o CC net/ipv4/udp.o CC net/ipv4/udplite.o CC net/ipv4/udp_offload.o AR drivers/media/mmc/built-in.o CC kernel/irq/dummychip.o AR drivers/nfc/built-in.o /home/kisskb/slave/src/net/core/dev.c: In function 'validate_xmit_skb_list': /home/kisskb/slave/src/net/core/dev.c:3103:15: warning: 'tail' may be used uninitialized in this function [-Wuninitialized] AR drivers/media/platform/blackfin/built-in.o CC drivers/net/mii.o CC kernel/time/ntp.o AR drivers/media/platform/davinci/built-in.o AR drivers/i2c/i2c-core.o AR drivers/i2c/built-in.o AR drivers/misc/eeprom/built-in.o CC kernel/sched/deadline.o CC net/ipv4/arp.o AR drivers/misc/built-in.o AR drivers/media/platform/meson/built-in.o AR drivers/nvme/host/built-in.o CC drivers/of/base.o CC net/core/net-sysfs.o AR drivers/media/pci/ddbridge/built-in.o AR drivers/media/pci/b2c2/built-in.o AR drivers/pci/dwc/built-in.o AR drivers/media/platform/omap/built-in.o CC net/core/net-procfs.o AR drivers/nvme/target/built-in.o AR drivers/media/pci/dm1105/built-in.o CC kernel/irq/devres.o AR drivers/media/pci/mantis/built-in.o CC kernel/sched/wait.o AR drivers/platform/built-in.o CC kernel/sched/wait_bit.o CC kernel/irq/generic-chip.o AR drivers/nvme/built-in.o AR drivers/media/platform/stm32/built-in.o CC net/ipv4/icmp.o AR drivers/media/pci/netup_unidvb/built-in.o CC kernel/sched/swait.o AR drivers/media/platform/built-in.o CC kernel/sched/completion.o AR drivers/media/pci/ngene/built-in.o CC kernel/irq/autoprobe.o CC net/ipv4/devinet.o AR drivers/power/built-in.o AR drivers/media/pci/pluto2/built-in.o AR drivers/media/pci/pt1/built-in.o CC drivers/mmc/core/mmc_ops.o AR drivers/media/pci/pt3/built-in.o CC kernel/power/suspend.o AR drivers/ptp/built-in.o CC drivers/net/Space.o AR drivers/media/pci/smipcie/built-in.o AR drivers/media/pci/saa7146/built-in.o AR drivers/pwm/built-in.o AR drivers/media/spi/built-in.o AR drivers/media/pci/ttpci/built-in.o CC drivers/rtc/rtc-lib.o CC drivers/mtd/mtdsuper.o AR drivers/media/rc/keymaps/built-in.o CC kernel/sched/idle.o AR drivers/media/pci/built-in.o AR drivers/media/tuners/built-in.o CC net/ipv4/af_inet.o CC drivers/spi/spi.o AR drivers/media/rc/built-in.o AR drivers/gpio/built-in.o AR drivers/soc/fsl/built-in.o AR drivers/soc/renesas/built-in.o AR drivers/soc/bcm/built-in.o CC drivers/mmc/core/sd.o CC kernel/time/clocksource.o CC kernel/time/jiffies.o AR drivers/soc/built-in.o CC drivers/tty/tty_io.o CC net/ipv4/igmp.o CC drivers/mmc/core/sd_ops.o CC drivers/mmc/host/of_mmc_spi.o CC kernel/sched/membarrier.o AR drivers/usb/built-in.o CC kernel/irq/irqdomain.o AR drivers/media/usb/b2c2/built-in.o CC kernel/irq/proc.o CC kernel/irq/pm.o CC net/ipv4/fib_frontend.o AR drivers/media/usb/dvb-usb/built-in.o AR drivers/video/backlight/built-in.o CC net/ipv4/fib_semantics.o AR drivers/media/usb/dvb-usb-v2/built-in.o CC net/ipv4/fib_trie.o AR drivers/video/fbdev/core/built-in.o AR drivers/media/usb/siano/built-in.o CC net/ipv4/fib_notifier.o AR drivers/media/usb/s2255/built-in.o CC drivers/net/loopback.o CC net/ipv4/inet_fragment.o AR drivers/media/usb/ttusb-budget/built-in.o AR drivers/media/usb/stkwebcam/built-in.o AR drivers/rtc/built-in.o CC kernel/time/timer_list.o AR drivers/media/usb/ttusb-dec/built-in.o CC kernel/time/timeconv.o AR drivers/video/fbdev/omap2/omapfb/displays/built-in.o AR drivers/video/fbdev/omap2/omapfb/dss/built-in.o AR drivers/media/usb/zr364xx/built-in.o CC drivers/mmc/core/sdio.o AR drivers/net/phy/built-in.o CC drivers/mtd/mtdpart.o CC drivers/mtd/mtdconcat.o AR drivers/video/fbdev/omap2/omapfb/built-in.o AR drivers/media/usb/built-in.o CC drivers/mmc/core/sdio_ops.o CC drivers/mmc/core/sdio_bus.o AR drivers/video/fbdev/omap2/built-in.o CC drivers/mtd/mtdchar.o AR drivers/video/fbdev/built-in.o AR kernel/sched/built-in.o CC kernel/time/timecounter.o CC drivers/mmc/core/sdio_cis.o CC kernel/time/alarmtimer.o CC drivers/mmc/core/sdio_io.o AR drivers/media/built-in.o CC kernel/time/posix-timers.o CC drivers/mmc/core/sdio_irq.o CC drivers/of/device.o AR drivers/video/built-in.o CC kernel/time/posix-cpu-timers.o CC drivers/mtd/ofpart.o CC kernel/power/poweroff.o AR drivers/mmc/host/built-in.o AR drivers/net/ethernet/amazon/built-in.o CC drivers/mmc/core/slot-gpio.o CC drivers/mmc/core/pwrseq.o AR drivers/net/ethernet/alacritech/built-in.o CC drivers/mmc/core/pwrseq_emmc.o CC drivers/mmc/core/pwrseq_simple.o CC kernel/time/posix-clock.o CC kernel/time/itimer.o AR drivers/net/ethernet/aquantia/built-in.o AR kernel/rcu/built-in.o AR drivers/net/ethernet/ezchip/built-in.o AR kernel/power/built-in.o CC kernel/time/clockevents.o AR drivers/net/ethernet/hisilicon/built-in.o AR drivers/net/ethernet/huawei/built-in.o CC kernel/time/tick-common.o CC net/ipv4/ping.o AR drivers/net/ethernet/mellanox/built-in.o AR drivers/net/ethernet/netronome/built-in.o CC drivers/net/ethernet/micrel/ks8851.o CC net/ipv4/ip_tunnel_core.o CC drivers/mmc/core/block.o CC kernel/time/sched_clock.o AR drivers/net/ethernet/renesas/built-in.o CC net/ipv4/gre_offload.o CC drivers/mmc/core/queue.o CC net/ipv4/sysctl_net_ipv4.o AR drivers/net/ethernet/qualcomm/emac/built-in.o AR drivers/net/ethernet/qualcomm/built-in.o AR drivers/net/ethernet/rocker/built-in.o CC net/ipv4/proc.o AR drivers/mtd/devices/built-in.o CC kernel/time/tick-oneshot.o CC drivers/mtd/chips/chipreg.o AR drivers/mtd/lpddr/built-in.o AR drivers/net/ethernet/samsung/built-in.o AR kernel/irq/built-in.o CC drivers/mtd/maps/uclinux.o CC drivers/mtd/chips/map_rom.o CC net/ipv4/tcp_cubic.o CC drivers/of/platform.o CC kernel/time/tick-sched.o CC drivers/of/property.o AR drivers/net/ethernet/synopsys/built-in.o AR drivers/mtd/nand/built-in.o AR drivers/mtd/onenand/built-in.o AR drivers/mtd/tests/built-in.o CC drivers/of/fdt.o CC drivers/mtd/mtd_blkdevs.o CC drivers/of/fdt_address.o CC drivers/mtd/mtdblock_ro.o AR drivers/mtd/parsers/built-in.o CC drivers/of/address.o CC drivers/tty/n_tty.o CC drivers/spi/spi-bitbang.o AR drivers/mmc/core/mmc_core.o CC drivers/spi/spi-efm32.o CC drivers/of/irq.o CC drivers/of/of_net.o CC drivers/of/of_reserved_mem.o CC drivers/tty/tty_ioctl.o CC drivers/tty/tty_ldisc.o CC drivers/tty/tty_buffer.o CC drivers/tty/tty_port.o CC drivers/tty/tty_mutex.o CC drivers/tty/tty_ldsem.o CC drivers/tty/tty_baudrate.o CC drivers/tty/tty_jobctrl.o AR drivers/mtd/chips/built-in.o CC drivers/tty/n_null.o CC drivers/tty/sysrq.o AR drivers/tty/ipwireless/built-in.o AR net/core/built-in.o AR drivers/tty/vt/built-in.o CC drivers/tty/serial/serial_core.o CC drivers/tty/serial/efm32-uart.o AR drivers/mtd/maps/built-in.o AR drivers/mtd/mtd.o AR kernel/time/built-in.o AR kernel/built-in.o AR drivers/spi/built-in.o AR drivers/net/ethernet/micrel/built-in.o AR drivers/net/ethernet/built-in.o AR drivers/net/built-in.o AR drivers/mtd/built-in.o AR drivers/of/built-in.o AR net/ipv4/built-in.o AR net/built-in.o AR drivers/mmc/core/mmc_block.o AR drivers/mmc/core/built-in.o AR drivers/mmc/built-in.o AR drivers/tty/serial/built-in.o AR drivers/tty/built-in.o AR drivers/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 KSYM .tmp_kallsyms1.o KSYM .tmp_kallsyms2.o LD vmlinux SYSMAP System.map OBJCOPY arch/arm/boot/xipImage Physical Address of xipImage: 0x8c000000 Kernel: arch/arm/boot/xipImage is ready make[1]: Leaving directory '/home/kisskb/slave/build/linus_efm32_defconfig_arm' Completed OK # rm -rf /home/kisskb/slave/build/linus_efm32_defconfig_arm # Build took: 0:00:25.756356