Buildresult: linus-rand/x86_64-randconfig/x86_64-gcc4.6 built on Oct 13 2018, 00:45

kisskb

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Status:	OK
Date/Time:	Oct 13 2018, 00:45
Duration:	0:01:52.960174
Builder:	ka3
Revision:	afs: Fix cell proc list (`6b3944e42e2e554aa5a4be681ecd70dccd459114)`
Target:	linus-rand/x86_64-randconfig/x86_64-gcc4.6
Branch:	linus-rand
Compiler:	x86_64-gcc4.6 (x86_64-linux-gcc (GCC) 4.6.3)
Config:	randconfig (download)
Log:	Download original Possible warnings (177) arch/x86/kernel/apic/vector.o: warning: objtool: arch_early_irq_init()+0x20: unreachable instruction kernel/sched/core.c:139:6: warning: unused variable 'steal' [-Wunused-variable] kernel/rcu/sync.o: warning: objtool: rcu_sync_func()+0x9: unreachable instruction arch/x86/kernel/apic/io_apic.c:1034:6: warning: 'irq' may be used uninitialized in this function [-Wuninitialized] arch/x86/kernel/traps.o: warning: objtool: ist_begin_non_atomic()+0xb: unreachable instruction kernel/power/suspend.o: warning: objtool: suspend_enter()+0xd0: unreachable instruction mm/filemap.o: warning: objtool: find_get_entries_tag()+0xb4: unreachable instruction kernel/dma/swiotlb.o: warning: objtool: swiotlb_tbl_map_single()+0x99: unreachable instruction fs/crypto/crypto.o: warning: objtool: fscrypt_do_page_crypto()+0x69: unreachable instruction arch/x86/mm/init_64.o: warning: objtool: __init_extra_mapping()+0x69: unreachable instruction kernel/printk/printk.c:185:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] kernel/trace/trace_syscalls.o: warning: objtool: ftrace_syscall_enter()+0x169: unreachable instruction arch/x86/mm/physaddr.o: warning: objtool: __phys_addr()+0x1f: unreachable instruction fs/proc/task_mmu.o: warning: objtool: pte_to_pagemap_entry.isra.28()+0x134: unreachable instruction fs/configfs/dir.o: warning: objtool: configfs_rmdir()+0x5e: unreachable instruction kernel/trace/ring_buffer_benchmark.o: warning: objtool: read_page()+0x7f: unreachable instruction include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] kernel/sched/rt.o: warning: objtool: _pick_next_task_rt()+0x2d: unreachable instruction fs/sysfs/file.o: warning: objtool: sysfs_kf_seq_show()+0x34: unreachable instruction kernel/resource.o: warning: objtool: find_next_iomem_res()+0x7: unreachable instruction fs/fuse/dir.o: warning: objtool: fuse_set_nowrite()+0x19: unreachable instruction arch/x86/kernel/nmi.o: warning: objtool: do_nmi()+0x7d: unreachable instruction kernel/exit.o: warning: objtool: release_task()+0x4a: unreachable instruction arch/x86/kernel/setup.o: warning: objtool: extend_brk()+0xf: unreachable instruction kernel/signal.o: warning: objtool: task_set_jobctl_pending()+0xb: unreachable instruction kernel/smpboot.o: warning: objtool: smpboot_thread_fn()+0xb2: unreachable instruction fs/fuse/dev.o: warning: objtool: fuse_copy_fill()+0x5a: unreachable instruction kernel/cred.o: warning: objtool: __put_cred()+0x8: unreachable instruction mm/page_alloc.o: warning: objtool: free_one_page()+0x26: unreachable instruction kernel/params.o: warning: objtool: kernel_add_sysfs_param()+0x45: unreachable instruction fs/exec.o: warning: objtool: de_thread()+0x14a: unreachable instruction mm/page-writeback.o: warning: objtool: write_one_page()+0x48: unreachable instruction kernel/irq/matrix.o: warning: objtool: irq_matrix_assign_system()+0x16: unreachable instruction kernel/trace/trace.o: warning: objtool: __tracing_resize_ring_buffer()+0x75: unreachable instruction arch/x86/kernel/e820.c:653:2: warning: 'gapstart' may be used uninitialized in this function [-Wuninitialized] kernel/kexec_file.o: warning: objtool: arch_kexec_kernel_image_load()+0x1d: unsupported stack register modification kernel/audit_watch.o: warning: objtool: audit_watch_handle_event()+0x21: unreachable instruction fs/inode.o: warning: objtool: clear_inode()+0x13: unreachable instruction fs/seq_file.o: warning: objtool: seq_dentry()+0x1c: unreachable instruction fs/dcache.o: warning: objtool: d_instantiate_new()+0x10: unreachable instruction arch/x86/kernel/e820.o: warning: objtool: e820__reallocate_tables()+0x25: unreachable instruction arch/x86/kernel/quirks.o: warning: objtool: ich_force_hpet_resume()+0x18: unreachable instruction fs/fuse/inode.o: warning: objtool: fuse_destroy_inode()+0x19: unreachable instruction kernel/audit_fsnotify.o: warning: objtool: audit_mark_handle_event()+0x22: unreachable instruction crypto/asymmetric_keys/public_key.o: warning: objtool: public_key_verify_signature()+0x1e: unreachable instruction kernel/workqueue.o: warning: objtool: workqueue_init_early()+0x6e: unreachable instruction arch/x86/kernel/alternative.o: warning: objtool: apply_alternatives()+0x57: unreachable instruction mm/readahead.o: warning: objtool: read_cache_pages_invalidate_page()+0x32: unreachable instruction security/keys/keyring.o: warning: objtool: search_nested_keyrings()+0x2b: unreachable instruction kernel/events/uprobes.o: warning: objtool: __replace_page()+0x9e: unreachable instruction fs/file.o: warning: objtool: __fd_install()+0x33: unreachable instruction fs/namei.o: warning: objtool: page_get_link()+0x75: unreachable instruction kernel/kprobes.o: warning: objtool: reuse_unused_kprobe()+0x3e: unreachable instruction fs/libfs.o: warning: objtool: simple_write_end()+0x9d: unreachable instruction crypto/algapi.o: warning: objtool: crypto_unregister_template()+0x2b: unreachable instruction fs/proc/array.o: warning: objtool: proc_task_name()+0x3c: unreachable instruction arch/x86/kernel/hw_breakpoint.c:366:18: warning: 'align' may be used uninitialized in this function [-Wuninitialized] kernel/module.o: warning: objtool: frob_ro_after_init()+0x10: unreachable instruction mm/truncate.o: warning: objtool: invalidate_complete_page2()+0x62: unreachable instruction mm/swap.o: warning: objtool: release_pages()+0x76: unreachable instruction fs/fuse/file.o: warning: objtool: fuse_readpages_end()+0xa1: unreachable instruction arch/x86/kernel/machine_kexec_64.o: warning: objtool: arch_kexec_kernel_image_load()+0x37: unsupported stack register modification mm/shmem.o: warning: objtool: shmem_init()+0x13: unreachable instruction drivers/base/regmap/regmap-irq.o: warning: objtool: regmap_irq_thread()+0xa0: unreachable instruction mm/vmscan.o: warning: objtool: move_active_pages_to_lru()+0x6e: unreachable instruction mm/percpu.o: warning: objtool: pcpu_setup_first_chunk()+0x65: unreachable instruction lib/mpi/mpicoder.c:352:8: warning: 'buff' may be used uninitialized in this function [-Wuninitialized] net/8021q/vlan.o: warning: objtool: unregister_vlan_dev()+0x5e: unreachable instruction mm/gup.o: warning: objtool: gup_pte_range()+0x160: unreachable instruction net/bluetooth/af_bluetooth.o: warning: objtool: bt_sock_reclassify_lock()+0x7: unreachable instruction mm/workingset.o: warning: objtool: workingset_eviction()+0x28: unreachable instruction lib/mpi/mpi-pow.o: warning: objtool: mpi_powm()+0x244: unreachable instruction mm/debug.o: warning: objtool: __dump_page()+0x62: unreachable instruction mm/compaction.o: warning: objtool: __SetPageMovable()+0x25: unreachable instruction drivers/base/devres.o: warning: objtool: remove_nodes.isra.5()+0xa2: unreachable instruction crypto/drbg.o: warning: objtool: drbg_async_seed()+0x46: unreachable instruction crypto/af_alg.o: warning: objtool: af_alg_pull_tsgl()+0xb0: unreachable instruction drivers/char/tpm/tpm-sysfs.c:37:16: warning: 'tpm_buf.data' may be used uninitialized in this function [-Wuninitialized] mm/memory.o: warning: objtool: wp_page_copy()+0x26b: unreachable instruction mm/pagewalk.o: warning: objtool: walk_page_vma()+0x1e: unreachable instruction mm/mlock.o: warning: objtool: __putback_lru_fast_prepare()+0x35: unreachable instruction net/core/sock.o: warning: objtool: sk_alloc_sg()+0x130: unreachable instruction net/core/skbuff.o: warning: objtool: skb_pull_rcsum()+0x14: unreachable instruction mm/rmap.o: warning: objtool: __page_check_anon_rmap()+0x23: unreachable instruction net/atm/resources.o: warning: objtool: atm_dev_deregister()+0xe: unreachable instruction sound/core/pcm_iec958.c:80:9: warning: 'ws' may be used uninitialized in this function [-Wuninitialized] mm/migrate.o: warning: objtool: migrate_page_states()+0x6a: unreachable instruction mm/vmalloc.o: warning: objtool: vb_free()+0x18: unreachable instruction mm/mmap.o: warning: objtool: unmapped_area()+0x15a: unreachable instruction net/core/gen_stats.c:161:19: warning: 'seq' may be used uninitialized in this function [-Wuninitialized] drivers/clocksource/clps711x-timer.o: warning: objtool: clps711x_clksrc_init()+0x20: unreachable instruction mm/ksm.c:1395:15: warning: 'found_rmap_hlist_len' may be used uninitialized in this function [-Wuninitialized] net/netlink/genetlink.o: warning: objtool: genl_validate_assign_mc_groups()+0x6d: unreachable instruction net/key/af_key.o: warning: objtool: pfkey_send_new_mapping()+0x151: unreachable instruction net/core/flow_dissector.o: warning: objtool: skb_flow_dissector_init()+0x22: unreachable instruction mm/zsmalloc.o: warning: objtool: remove_zspage()+0x13: unreachable instruction drivers/dma/dw/core.o: warning: objtool: dwc_free_chan_resources()+0x26: unreachable instruction net/core/dev.c:3365:15: warning: 'tail' may be used uninitialized in this function [-Wuninitialized] mm/ksm.o: warning: objtool: remove_node_from_stable_tree()+0xe: unreachable instruction net/wimax/id-table.o: warning: objtool: wimax_id_table_add()+0x14: unreachable instruction drivers/dma/ep93xx_dma.o: warning: objtool: ep93xx_dma_free_chan_resources()+0x2d: unreachable instruction net/core/rtnetlink.o: warning: objtool: rtnl_unregister()+0x10: unreachable instruction net/rfkill/core.o: warning: objtool: rfkill_init_sw_state()+0xc: unreachable instruction net/wimax/op-msg.o: warning: objtool: wimax_msg_send()+0x41: unreachable instruction net/wimax/stack.o: warning: objtool: wimax_dev_add()+0x27: unreachable instruction drivers/dma-buf/dma-buf.o: warning: objtool: dma_buf_vunmap()+0x1e: unreachable instruction drivers/dma/mv_xor.o: warning: objtool: mv_xor_prep_dma_xor()+0x28: unreachable instruction net/core/dev.o: warning: objtool: gro_pull_from_frag0()+0x28: unreachable instruction net/wimax/op-reset.o: warning: objtool: wimax_reset()+0x36: unreachable instruction drivers/dma/mxs-dma.o: warning: objtool: mxs_dma_alloc_chan_resources()+0x37: unreachable instruction net/core/filter.o: warning: objtool: bpf_msg_pull_data()+0x226: unreachable instruction net/wimax/op-state-get.o: warning: objtool: wimax_gnl_doit_state_get()+0x1c: unreachable instruction net/wimax/op-rfkill.o: warning: objtool: __wimax_rf_toggle_radio()+0x39: unreachable instruction net/xfrm/xfrm_policy.o: warning: objtool: xfrm_create_dummy_bundle()+0x62: unreachable instruction drivers/dma-buf/reservation.c:211:7: warning: 'i' may be used uninitialized in this function [-Wuninitialized] drivers/dma-buf/dma-fence.o: warning: objtool: dma_fence_init()+0xe: unreachable instruction net/sched/sch_skbprio.o: warning: objtool: skbprio_enqueue()+0x18e: unreachable instruction drivers/hwspinlock/hwspinlock_core.c:328:6: warning: 'id' may be used uninitialized in this function [-Wuninitialized] drivers/hwspinlock/hwspinlock_core.o: warning: objtool: __hwspin_unlock()+0x10: unreachable instruction drivers/input/gameport/gameport.o: warning: objtool: gameport_start_polling()+0x2b: unreachable instruction net/unix/garbage.o: warning: objtool: unix_inflight()+0x3e: unreachable instruction drivers/mmc/host/mtk-sd.o: warning: objtool: msdc_drv_probe()+0x2ca: unreachable instruction drivers/hwtracing/intel_th/msu.o: warning: objtool: msc_buffer_win_alloc()+0x8d: unreachable instruction drivers/mtd/chips/cfi_util.o: warning: objtool: cfi_merge_status()+0x32: unreachable instruction drivers/mmc/host/android-goldfish.o: warning: objtool: goldfish_mmc_remove()+0x14: unreachable instruction drivers/misc/ad525x_dpot.o: warning: objtool: dpot_write_spi()+0x83: unreachable instruction drivers/gpu/drm/ttm/ttm_tt.o: warning: objtool: ttm_tt_swapin()+0x1c: unreachable instruction drivers/gpu/drm/ttm/ttm_bo.o: warning: objtool: ttm_bo_release_list()+0x1e: unreachable instruction lib/rhashtable.c:264:2: warning: 'next' may be used uninitialized in this function [-Wuninitialized] drivers/platform/chrome/cros_ec_proto.o: warning: objtool: prepare_packet()+0xc: unreachable instruction drivers/gpu/drm/drm_crtc_helper.o: warning: objtool: drm_crtc_helper_set_config()+0x2b: unreachable instruction drivers/i2c/i2c-core-base.c:235:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] drivers/platform/chrome/cros_ec_i2c.o: warning: objtool: cros_ec_pkt_xfer_i2c()+0x43: unreachable instruction drivers/media/common/videobuf2/videobuf2-vmalloc.o: warning: objtool: vb2_vmalloc_dmabuf_ops_map()+0x5c: unreachable instruction drivers/mfd/wm8994-core.o: warning: objtool: wm8994_device_init.isra.6()+0xbc: unreachable instruction lib/btree.o: warning: objtool: find_level()+0x70: unreachable instruction drivers/gpu/drm/virtio/virtgpu_vq.o: warning: objtool: virtio_gpu_get_vbuf.isra.8()+0x3e: unreachable instruction drivers/remoteproc/remoteproc_core.o: warning: objtool: rproc_handle_carveout()+0x90: unreachable instruction lib/assoc_array.o: warning: objtool: assoc_array_destroy_subtree()+0x38: unreachable instruction lib/genalloc.o: warning: objtool: gen_pool_free()+0x2f: unreachable instruction drivers/gpu/drm/udl/udl_dmabuf.o: warning: objtool: udl_map_dma_buf()+0x19e: unreachable instruction drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.o: warning: objtool: prepare_data_dma()+0xcd: unreachable instruction lib/syscall.o: warning: objtool: collect_syscall()+0xf2: unreachable instruction lib/oid_registry.o: warning: objtool: sprint_OID()+0xb: unreachable instruction drivers/mtd/nand/raw/nand_bbt.o: warning: objtool: verify_bbt_descr()+0x28: unreachable instruction drivers/virtio/virtio.o: warning: objtool: virtio_dev_probe()+0x59: unreachable instruction drivers/mtd/nand/raw/nand_base.o: warning: objtool: nand_fill_oob()+0x6a: unreachable instruction drivers/iio/adc/at91-sama5d2_adc.o: warning: objtool: at91_adc_dma_init()+0x8a: unreachable instruction drivers/gpu/drm/drm_gem.o: warning: objtool: drm_gem_get_pages()+0xc6: unreachable instruction drivers/virtio/virtio_ring.o: warning: objtool: detach_buf()+0x96: unreachable instruction lib/kobject.o: warning: objtool: create_dir()+0x8d: unreachable instruction lib/plist.o: warning: objtool: plist_requeue()+0x1d: unreachable instruction drivers/iio/adc/sc27xx_adc.c:285:8: warning: 'tmp' may be used uninitialized in this function [-Wuninitialized] lib/radix-tree.o: warning: objtool: radix_tree_tag_set()+0x30: unreachable instruction drivers/mtd/nand/raw/marvell_nand.o: warning: objtool: marvell_nfc_xfer_data_dma()+0x6e: unreachable instruction drivers/video/backlight/adp8860_bl.c:579:10: warning: 'ret_val' may be used uninitialized in this function [-Wuninitialized] drivers/mtd/nand/raw/jz4740_nand.o: warning: objtool: jz_nand_cmd_ctrl()+0x17: unreachable instruction drivers/input/touchscreen/hideep.c:633:3: warning: 'error' may be used uninitialized in this function [-Wuninitialized] drivers/mtd/nand/raw/qcom_nandc.o: warning: objtool: prepare_bam_async_desc()+0xf9: unreachable instruction drivers/video/fbdev/omap2/omapfb/omapfb-main.o: warning: objtool: omapfb_get_recommended_bpp()+0x23: unreachable instruction drivers/mtd/mtdconcat.o: warning: objtool: concat_erase()+0x119: unreachable instruction drivers/gpu/drm/drm_global.o: warning: objtool: drm_global_item_unref()+0x28: unreachable instruction drivers/pinctrl/uniphier/pinctrl-uniphier-core.o: warning: objtool: uniphier_pctl_pin_dbg_show()+0x46: unreachable instruction drivers/video/fbdev/omap2/omapfb/dss/dss.o: warning: objtool: dss_select_dsi_clk_source()+0x1c: unreachable instruction drivers/gpu/drm/drm_prime.o: warning: objtool: drm_gem_map_dma_buf()+0x9e: unreachable instruction drivers/video/fbdev/core/fb_defio.o: warning: objtool: fb_deferred_io_fault()+0x5e: unreachable instruction drivers/video/fbdev/omap2/omapfb/dss/dispc.o: warning: objtool: dispc_restore_context()+0xb66: sibling call from callable instruction with modified stack frame drivers/video/fbdev/omap2/omapfb/dss/dispc.o: warning: objtool: dispc_save_context()+0xadd: sibling call from callable instruction with modified stack frame drivers/video/fbdev/goldfishfb.o: warning: objtool: goldfish_fb_probe()+0x197: unreachable instruction drivers/gpu/drm/drm_atomic.c:760:38: warning: 'crtc_state' may be used uninitialized in this function [-Wuninitialized] drivers/video/fbdev/smscufx.o: warning: objtool: ufx_raw_rect()+0x16: unreachable instruction drivers/usb/host/xhci-mem.o: warning: objtool: scratchpad_alloc()+0x17e: unreachable instruction drivers/usb/host/isp116x-hcd.o: warning: objtool: preproc_atl_queue()+0x25: unreachable instruction drivers/usb/gadget/udc/mv_udc_core.o: warning: objtool: mv_udc_probe()+0x202: unreachable instruction drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.o: warning: objtool: cleanup_pagelistinfo()+0x41: unreachable instruction drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.o: warning: objtool: pause_bulks()+0x12: unreachable instruction scripts/unifdef.c:453:28: warning: 'strncpy' output truncated before terminating nul copying 4 bytes from a string of the same length [-Wstringop-truncation] Full Log # git rev-parse -q --verify 6b3944e42e2e554aa5a4be681ecd70dccd459114^{commit} 6b3944e42e2e554aa5a4be681ecd70dccd459114 already have revision, skipping fetch # git checkout -q -f -B kisskb 6b3944e42e2e554aa5a4be681ecd70dccd459114 # git clean -qxdf # < git log -1 # commit 6b3944e42e2e554aa5a4be681ecd70dccd459114 # Author: David Howells <dhowells@redhat.com> # Date: Thu Oct 11 22:45:49 2018 +0100 # # afs: Fix cell proc list # # Access to the list of cells by /proc/net/afs/cells has a couple of # problems: # # (1) It should be checking against SEQ_START_TOKEN for the keying the # header line. # # (2) It's only holding the RCU read lock, so it can't just walk over the # list without following the proper RCU methods. # # Fix these by using an hlist instead of an ordinary list and using the # appropriate accessor functions to follow it with RCU. # # Since the code that adds a cell to the list must also necessarily change, # sort the list on insertion whilst we're at it. # # Fixes: 989782dcdc91 ("afs: Overhaul cell database management") # Signed-off-by: David Howells <dhowells@redhat.com> # Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> # < /opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version # < git log --format=%s --max-count=1 6b3944e42e2e554aa5a4be681ecd70dccd459114 # < make -s -j 80 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux- randconfig KCONFIG_SEED=0x321784F4 # Added to kconfig CONFIG_STANDALONE=y # Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y # Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=n # Added to kconfig CONFIG_GCC_PLUGINS=n # Added to kconfig CONFIG_GCC_PLUGIN_CYC_COMPLEXITY=n # Added to kconfig CONFIG_GCC_PLUGIN_SANCOV=n # Added to kconfig CONFIG_GCC_PLUGIN_LATENT_ENTROPY=n # yes \n \| make -s -j 80 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux- oldconfig yes: standard output: Broken pipe # make -s -j 80 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux- arch/x86/kernel/apic/vector.o: warning: objtool: arch_early_irq_init()+0x20: unreachable instruction /kisskb/src/kernel/sched/core.c: In function 'update_rq_clock_task': /kisskb/src/kernel/sched/core.c:139:6: warning: unused variable 'steal' [-Wunused-variable] kernel/rcu/sync.o: warning: objtool: rcu_sync_func()+0x9: unreachable instruction /kisskb/src/arch/x86/kernel/apic/io_apic.c: In function 'mp_map_pin_to_irq': /kisskb/src/arch/x86/kernel/apic/io_apic.c:1034:6: warning: 'irq' may be used uninitialized in this function [-Wuninitialized] arch/x86/kernel/traps.o: warning: objtool: ist_begin_non_atomic()+0xb: unreachable instruction kernel/power/suspend.o: warning: objtool: suspend_enter()+0xd0: unreachable instruction mm/filemap.o: warning: objtool: find_get_entries_tag()+0xb4: unreachable instruction kernel/dma/swiotlb.o: warning: objtool: swiotlb_tbl_map_single()+0x99: unreachable instruction fs/crypto/crypto.o: warning: objtool: fscrypt_do_page_crypto()+0x69: unreachable instruction arch/x86/mm/init_64.o: warning: objtool: __init_extra_mapping()+0x69: unreachable instruction /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:185:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] kernel/trace/trace_syscalls.o: warning: objtool: ftrace_syscall_enter()+0x169: unreachable instruction arch/x86/mm/physaddr.o: warning: objtool: __phys_addr()+0x1f: unreachable instruction fs/proc/task_mmu.o: warning: objtool: pte_to_pagemap_entry.isra.28()+0x134: unreachable instruction fs/configfs/dir.o: warning: objtool: configfs_rmdir()+0x5e: unreachable instruction kernel/trace/ring_buffer_benchmark.o: warning: objtool: read_page()+0x7f: unreachable instruction /kisskb/src/fs/proc/inode.c: In function 'proc_reg_open': /kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c:341:21: note: 'pdeo' was declared here kernel/sched/rt.o: warning: objtool: _pick_next_task_rt()+0x2d: unreachable instruction fs/sysfs/file.o: warning: objtool: sysfs_kf_seq_show()+0x34: unreachable instruction kernel/resource.o: warning: objtool: find_next_iomem_res()+0x7: unreachable instruction fs/fuse/dir.o: warning: objtool: fuse_set_nowrite()+0x19: unreachable instruction arch/x86/kernel/nmi.o: warning: objtool: do_nmi()+0x7d: unreachable instruction kernel/exit.o: warning: objtool: release_task()+0x4a: unreachable instruction arch/x86/kernel/setup.o: warning: objtool: extend_brk()+0xf: unreachable instruction kernel/signal.o: warning: objtool: task_set_jobctl_pending()+0xb: unreachable instruction kernel/smpboot.o: warning: objtool: smpboot_thread_fn()+0xb2: unreachable instruction fs/fuse/dev.o: warning: objtool: fuse_copy_fill()+0x5a: unreachable instruction kernel/cred.o: warning: objtool: __put_cred()+0x8: unreachable instruction mm/page_alloc.o: warning: objtool: free_one_page()+0x26: unreachable instruction kernel/params.o: warning: objtool: kernel_add_sysfs_param()+0x45: unreachable instruction fs/exec.o: warning: objtool: de_thread()+0x14a: unreachable instruction mm/page-writeback.o: warning: objtool: write_one_page()+0x48: unreachable instruction kernel/irq/matrix.o: warning: objtool: irq_matrix_assign_system()+0x16: unreachable instruction kernel/trace/trace.o: warning: objtool: __tracing_resize_ring_buffer()+0x75: unreachable instruction /kisskb/src/arch/x86/kernel/e820.c: In function 'e820__setup_pci_gap': /kisskb/src/arch/x86/kernel/e820.c:653:2: warning: 'gapstart' may be used uninitialized in this function [-Wuninitialized] kernel/kexec_file.o: warning: objtool: arch_kexec_kernel_image_load()+0x1d: unsupported stack register modification kernel/audit_watch.o: warning: objtool: audit_watch_handle_event()+0x21: unreachable instruction fs/inode.o: warning: objtool: clear_inode()+0x13: unreachable instruction fs/seq_file.o: warning: objtool: seq_dentry()+0x1c: unreachable instruction fs/dcache.o: warning: objtool: d_instantiate_new()+0x10: unreachable instruction arch/x86/kernel/e820.o: warning: objtool: e820__reallocate_tables()+0x25: unreachable instruction arch/x86/kernel/quirks.o: warning: objtool: ich_force_hpet_resume()+0x18: unreachable instruction fs/fuse/inode.o: warning: objtool: fuse_destroy_inode()+0x19: unreachable instruction kernel/audit_fsnotify.o: warning: objtool: audit_mark_handle_event()+0x22: unreachable instruction crypto/asymmetric_keys/public_key.o: warning: objtool: public_key_verify_signature()+0x1e: unreachable instruction kernel/workqueue.o: warning: objtool: workqueue_init_early()+0x6e: unreachable instruction arch/x86/kernel/alternative.o: warning: objtool: apply_alternatives()+0x57: unreachable instruction mm/readahead.o: warning: objtool: read_cache_pages_invalidate_page()+0x32: unreachable instruction security/keys/keyring.o: warning: objtool: search_nested_keyrings()+0x2b: unreachable instruction kernel/events/uprobes.o: warning: objtool: __replace_page()+0x9e: unreachable instruction fs/file.o: warning: objtool: __fd_install()+0x33: unreachable instruction fs/namei.o: warning: objtool: page_get_link()+0x75: unreachable instruction kernel/kprobes.o: warning: objtool: reuse_unused_kprobe()+0x3e: unreachable instruction fs/libfs.o: warning: objtool: simple_write_end()+0x9d: unreachable instruction crypto/algapi.o: warning: objtool: crypto_unregister_template()+0x2b: unreachable instruction fs/proc/array.o: warning: objtool: proc_task_name()+0x3c: unreachable instruction /kisskb/src/arch/x86/kernel/hw_breakpoint.c: In function 'hw_breakpoint_arch_parse': /kisskb/src/arch/x86/kernel/hw_breakpoint.c:366:18: warning: 'align' may be used uninitialized in this function [-Wuninitialized] kernel/module.o: warning: objtool: frob_ro_after_init()+0x10: unreachable instruction mm/truncate.o: warning: objtool: invalidate_complete_page2()+0x62: unreachable instruction mm/swap.o: warning: objtool: release_pages()+0x76: unreachable instruction fs/fuse/file.o: warning: objtool: fuse_readpages_end()+0xa1: unreachable instruction arch/x86/kernel/machine_kexec_64.o: warning: objtool: arch_kexec_kernel_image_load()+0x37: unsupported stack register modification mm/shmem.o: warning: objtool: shmem_init()+0x13: unreachable instruction drivers/base/regmap/regmap-irq.o: warning: objtool: regmap_irq_thread()+0xa0: unreachable instruction mm/vmscan.o: warning: objtool: move_active_pages_to_lru()+0x6e: unreachable instruction mm/percpu.o: warning: objtool: pcpu_setup_first_chunk()+0x65: unreachable instruction /kisskb/src/lib/mpi/mpicoder.c: In function 'mpi_read_raw_from_sgl': /kisskb/src/lib/mpi/mpicoder.c:352:8: warning: 'buff' may be used uninitialized in this function [-Wuninitialized] net/8021q/vlan.o: warning: objtool: unregister_vlan_dev()+0x5e: unreachable instruction mm/gup.o: warning: objtool: gup_pte_range()+0x160: unreachable instruction net/bluetooth/af_bluetooth.o: warning: objtool: bt_sock_reclassify_lock()+0x7: unreachable instruction mm/workingset.o: warning: objtool: workingset_eviction()+0x28: unreachable instruction lib/mpi/mpi-pow.o: warning: objtool: mpi_powm()+0x244: unreachable instruction mm/debug.o: warning: objtool: __dump_page()+0x62: unreachable instruction mm/compaction.o: warning: objtool: __SetPageMovable()+0x25: unreachable instruction drivers/base/devres.o: warning: objtool: remove_nodes.isra.5()+0xa2: unreachable instruction crypto/drbg.o: warning: objtool: drbg_async_seed()+0x46: unreachable instruction crypto/af_alg.o: warning: objtool: af_alg_pull_tsgl()+0xb0: unreachable instruction /kisskb/src/drivers/char/tpm/tpm-sysfs.c: In function 'pubek_show': /kisskb/src/drivers/char/tpm/tpm-sysfs.c:37:16: warning: 'tpm_buf.data' may be used uninitialized in this function [-Wuninitialized] mm/memory.o: warning: objtool: wp_page_copy()+0x26b: unreachable instruction mm/pagewalk.o: warning: objtool: walk_page_vma()+0x1e: unreachable instruction mm/mlock.o: warning: objtool: __putback_lru_fast_prepare()+0x35: unreachable instruction net/core/sock.o: warning: objtool: sk_alloc_sg()+0x130: unreachable instruction net/core/skbuff.o: warning: objtool: skb_pull_rcsum()+0x14: unreachable instruction mm/rmap.o: warning: objtool: __page_check_anon_rmap()+0x23: unreachable instruction net/atm/resources.o: warning: objtool: atm_dev_deregister()+0xe: unreachable instruction /kisskb/src/sound/core/pcm_iec958.c: In function 'create_iec958_consumer': /kisskb/src/sound/core/pcm_iec958.c:80:9: warning: 'ws' may be used uninitialized in this function [-Wuninitialized] mm/migrate.o: warning: objtool: migrate_page_states()+0x6a: unreachable instruction mm/vmalloc.o: warning: objtool: vb_free()+0x18: unreachable instruction mm/mmap.o: warning: objtool: unmapped_area()+0x15a: unreachable instruction /kisskb/src/net/core/gen_stats.c: In function '__gnet_stats_copy_basic': /kisskb/src/net/core/gen_stats.c:161:19: warning: 'seq' may be used uninitialized in this function [-Wuninitialized] drivers/clocksource/clps711x-timer.o: warning: objtool: clps711x_clksrc_init()+0x20: unreachable instruction /kisskb/src/mm/ksm.c: In function 'stable_node_dup': /kisskb/src/mm/ksm.c:1395:15: warning: 'found_rmap_hlist_len' may be used uninitialized in this function [-Wuninitialized] net/netlink/genetlink.o: warning: objtool: genl_validate_assign_mc_groups()+0x6d: unreachable instruction net/key/af_key.o: warning: objtool: pfkey_send_new_mapping()+0x151: unreachable instruction net/core/flow_dissector.o: warning: objtool: skb_flow_dissector_init()+0x22: unreachable instruction mm/zsmalloc.o: warning: objtool: remove_zspage()+0x13: unreachable instruction drivers/dma/dw/core.o: warning: objtool: dwc_free_chan_resources()+0x26: unreachable instruction /kisskb/src/net/core/dev.c: In function 'validate_xmit_skb_list': /kisskb/src/net/core/dev.c:3365:15: warning: 'tail' may be used uninitialized in this function [-Wuninitialized] mm/ksm.o: warning: objtool: remove_node_from_stable_tree()+0xe: unreachable instruction net/wimax/id-table.o: warning: objtool: wimax_id_table_add()+0x14: unreachable instruction drivers/dma/ep93xx_dma.o: warning: objtool: ep93xx_dma_free_chan_resources()+0x2d: unreachable instruction net/core/rtnetlink.o: warning: objtool: rtnl_unregister()+0x10: unreachable instruction net/rfkill/core.o: warning: objtool: rfkill_init_sw_state()+0xc: unreachable instruction net/wimax/op-msg.o: warning: objtool: wimax_msg_send()+0x41: unreachable instruction net/wimax/stack.o: warning: objtool: wimax_dev_add()+0x27: unreachable instruction drivers/dma-buf/dma-buf.o: warning: objtool: dma_buf_vunmap()+0x1e: unreachable instruction drivers/dma/mv_xor.o: warning: objtool: mv_xor_prep_dma_xor()+0x28: unreachable instruction net/core/dev.o: warning: objtool: gro_pull_from_frag0()+0x28: unreachable instruction net/wimax/op-reset.o: warning: objtool: wimax_reset()+0x36: unreachable instruction drivers/dma/mxs-dma.o: warning: objtool: mxs_dma_alloc_chan_resources()+0x37: unreachable instruction net/core/filter.o: warning: objtool: bpf_msg_pull_data()+0x226: unreachable instruction net/wimax/op-state-get.o: warning: objtool: wimax_gnl_doit_state_get()+0x1c: unreachable instruction net/wimax/op-rfkill.o: warning: objtool: __wimax_rf_toggle_radio()+0x39: unreachable instruction net/xfrm/xfrm_policy.o: warning: objtool: xfrm_create_dummy_bundle()+0x62: unreachable instruction /kisskb/src/drivers/dma-buf/reservation.c: In function 'reservation_object_add_shared_replace': /kisskb/src/drivers/dma-buf/reservation.c:211:7: warning: 'i' may be used uninitialized in this function [-Wuninitialized] drivers/dma-buf/dma-fence.o: warning: objtool: dma_fence_init()+0xe: unreachable instruction net/sched/sch_skbprio.o: warning: objtool: skbprio_enqueue()+0x18e: unreachable instruction /kisskb/src/drivers/hwspinlock/hwspinlock_core.c: In function 'of_hwspin_lock_get_id': /kisskb/src/drivers/hwspinlock/hwspinlock_core.c:328:6: warning: 'id' may be used uninitialized in this function [-Wuninitialized] drivers/hwspinlock/hwspinlock_core.o: warning: objtool: __hwspin_unlock()+0x10: unreachable instruction drivers/input/gameport/gameport.o: warning: objtool: gameport_start_polling()+0x2b: unreachable instruction net/unix/garbage.o: warning: objtool: unix_inflight()+0x3e: unreachable instruction drivers/mmc/host/mtk-sd.o: warning: objtool: msdc_drv_probe()+0x2ca: unreachable instruction drivers/hwtracing/intel_th/msu.o: warning: objtool: msc_buffer_win_alloc()+0x8d: unreachable instruction drivers/mtd/chips/cfi_util.o: warning: objtool: cfi_merge_status()+0x32: unreachable instruction drivers/mmc/host/android-goldfish.o: warning: objtool: goldfish_mmc_remove()+0x14: unreachable instruction drivers/misc/ad525x_dpot.o: warning: objtool: dpot_write_spi()+0x83: unreachable instruction drivers/gpu/drm/ttm/ttm_tt.o: warning: objtool: ttm_tt_swapin()+0x1c: unreachable instruction drivers/gpu/drm/ttm/ttm_bo.o: warning: objtool: ttm_bo_release_list()+0x1e: unreachable instruction /kisskb/src/lib/rhashtable.c: In function 'rhashtable_rehash_one': /kisskb/src/lib/rhashtable.c:264:2: warning: 'next' may be used uninitialized in this function [-Wuninitialized] drivers/platform/chrome/cros_ec_proto.o: warning: objtool: prepare_packet()+0xc: unreachable instruction drivers/gpu/drm/drm_crtc_helper.o: warning: objtool: drm_crtc_helper_set_config()+0x2b: unreachable instruction /kisskb/src/drivers/i2c/i2c-core-base.c: In function 'i2c_generic_scl_recovery': /kisskb/src/drivers/i2c/i2c-core-base.c:235:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] drivers/platform/chrome/cros_ec_i2c.o: warning: objtool: cros_ec_pkt_xfer_i2c()+0x43: unreachable instruction drivers/media/common/videobuf2/videobuf2-vmalloc.o: warning: objtool: vb2_vmalloc_dmabuf_ops_map()+0x5c: unreachable instruction drivers/mfd/wm8994-core.o: warning: objtool: wm8994_device_init.isra.6()+0xbc: unreachable instruction lib/btree.o: warning: objtool: find_level()+0x70: unreachable instruction drivers/gpu/drm/virtio/virtgpu_vq.o: warning: objtool: virtio_gpu_get_vbuf.isra.8()+0x3e: unreachable instruction drivers/remoteproc/remoteproc_core.o: warning: objtool: rproc_handle_carveout()+0x90: unreachable instruction lib/assoc_array.o: warning: objtool: assoc_array_destroy_subtree()+0x38: unreachable instruction lib/genalloc.o: warning: objtool: gen_pool_free()+0x2f: unreachable instruction drivers/gpu/drm/udl/udl_dmabuf.o: warning: objtool: udl_map_dma_buf()+0x19e: unreachable instruction drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.o: warning: objtool: prepare_data_dma()+0xcd: unreachable instruction lib/syscall.o: warning: objtool: collect_syscall()+0xf2: unreachable instruction lib/oid_registry.o: warning: objtool: sprint_OID()+0xb: unreachable instruction drivers/mtd/nand/raw/nand_bbt.o: warning: objtool: verify_bbt_descr()+0x28: unreachable instruction drivers/virtio/virtio.o: warning: objtool: virtio_dev_probe()+0x59: unreachable instruction drivers/mtd/nand/raw/nand_base.o: warning: objtool: nand_fill_oob()+0x6a: unreachable instruction drivers/iio/adc/at91-sama5d2_adc.o: warning: objtool: at91_adc_dma_init()+0x8a: unreachable instruction drivers/gpu/drm/drm_gem.o: warning: objtool: drm_gem_get_pages()+0xc6: unreachable instruction drivers/virtio/virtio_ring.o: warning: objtool: detach_buf()+0x96: unreachable instruction lib/kobject.o: warning: objtool: create_dir()+0x8d: unreachable instruction lib/plist.o: warning: objtool: plist_requeue()+0x1d: unreachable instruction /kisskb/src/drivers/iio/adc/sc27xx_adc.c: In function 'sc27xx_adc_read_raw': /kisskb/src/drivers/iio/adc/sc27xx_adc.c:285:8: warning: 'tmp' may be used uninitialized in this function [-Wuninitialized] lib/radix-tree.o: warning: objtool: radix_tree_tag_set()+0x30: unreachable instruction drivers/mtd/nand/raw/marvell_nand.o: warning: objtool: marvell_nfc_xfer_data_dma()+0x6e: unreachable instruction /kisskb/src/drivers/video/backlight/adp8860_bl.c: In function 'adp8860_bl_ambient_light_level_show': /kisskb/src/drivers/video/backlight/adp8860_bl.c:579:10: warning: 'ret_val' may be used uninitialized in this function [-Wuninitialized] drivers/mtd/nand/raw/jz4740_nand.o: warning: objtool: jz_nand_cmd_ctrl()+0x17: unreachable instruction /kisskb/src/drivers/input/touchscreen/hideep.c: In function 'hideep_update_firmware': /kisskb/src/drivers/input/touchscreen/hideep.c:633:3: warning: 'error' may be used uninitialized in this function [-Wuninitialized] drivers/mtd/nand/raw/qcom_nandc.o: warning: objtool: prepare_bam_async_desc()+0xf9: unreachable instruction drivers/video/fbdev/omap2/omapfb/omapfb-main.o: warning: objtool: omapfb_get_recommended_bpp()+0x23: unreachable instruction drivers/mtd/mtdconcat.o: warning: objtool: concat_erase()+0x119: unreachable instruction drivers/gpu/drm/drm_global.o: warning: objtool: drm_global_item_unref()+0x28: unreachable instruction drivers/pinctrl/uniphier/pinctrl-uniphier-core.o: warning: objtool: uniphier_pctl_pin_dbg_show()+0x46: unreachable instruction drivers/video/fbdev/omap2/omapfb/dss/dss.o: warning: objtool: dss_select_dsi_clk_source()+0x1c: unreachable instruction drivers/gpu/drm/drm_prime.o: warning: objtool: drm_gem_map_dma_buf()+0x9e: unreachable instruction drivers/video/fbdev/core/fb_defio.o: warning: objtool: fb_deferred_io_fault()+0x5e: unreachable instruction drivers/video/fbdev/omap2/omapfb/dss/dispc.o: warning: objtool: dispc_restore_context()+0xb66: sibling call from callable instruction with modified stack frame drivers/video/fbdev/omap2/omapfb/dss/dispc.o: warning: objtool: dispc_save_context()+0xadd: sibling call from callable instruction with modified stack frame drivers/video/fbdev/goldfishfb.o: warning: objtool: goldfish_fb_probe()+0x197: unreachable instruction /kisskb/src/drivers/gpu/drm/drm_atomic.c: In function 'drm_atomic_connector_check': /kisskb/src/drivers/gpu/drm/drm_atomic.c:760:38: warning: 'crtc_state' may be used uninitialized in this function [-Wuninitialized] drivers/video/fbdev/smscufx.o: warning: objtool: ufx_raw_rect()+0x16: unreachable instruction drivers/usb/host/xhci-mem.o: warning: objtool: scratchpad_alloc()+0x17e: unreachable instruction drivers/usb/host/isp116x-hcd.o: warning: objtool: preproc_atl_queue()+0x25: unreachable instruction drivers/usb/gadget/udc/mv_udc_core.o: warning: objtool: mv_udc_probe()+0x202: unreachable instruction drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.o: warning: objtool: cleanup_pagelistinfo()+0x41: unreachable instruction drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.o: warning: objtool: pause_bulks()+0x12: unreachable instruction /kisskb/src/scripts/unifdef.c: In function 'Mpass': /kisskb/src/scripts/unifdef.c:453:28: warning: 'strncpy' output truncated before terminating nul copying 4 bytes from a string of the same length [-Wstringop-truncation] static void Mpass (void) { strncpy(keyword, "if ", 4); Pelif(); } ^~~~~~~~~~~~~~~~~~~~~~~~~~~ Completed OK # rm -rf /kisskb/build/linus-rand_x86_64-randconfig_x86_64 # Build took: 0:01:52.960174

© Michael Ellerman 2006-2018.