Buildresult: linus-rand/x86_64-randconfig/x86_64-gcc4.6 built on Nov 11 2018, 04:22

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Status:	OK
Date/Time:	Nov 11 2018, 04:22
Duration:	0:03:25.585285
Builder:	ka3
Revision:	Merge tag 'for-linus-4.20a-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip (`ab6e1f378f546b0caa616ac0fcc730725cc2d222)`
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 (374) scripts/unifdef.c:453:28: warning: 'strncpy' output truncated before terminating nul copying 4 bytes from a string of the same length [-Wstringop-truncation] kernel/rcu/sync.o: warning: objtool: rcu_sync_func()+0x2f: unreachable instruction kernel/dma/direct.o: warning: objtool: dma_direct_map_sg()+0x85: unreachable instruction kernel/printk/printk.c:186:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] kernel/events/ring_buffer.o: warning: objtool: rb_alloc_aux_page()+0x46: unreachable instruction kernel/dma/swiotlb.o: warning: objtool: swiotlb_tbl_map_single()+0x133: unreachable instruction arch/x86/mm/init_64.o: warning: objtool: __init_extra_mapping()+0xb2: unreachable instruction kernel/events/uprobes.o: warning: objtool: __replace_page()+0x119: unreachable instruction kernel/irq/matrix.o: warning: objtool: irq_matrix_assign_system()+0x3c: unreachable instruction crypto/asymmetric_keys/public_key.o: warning: objtool: public_key_verify_signature()+0x3d: unreachable instruction crypto/api.o: warning: objtool: __crypto_alloc_tfm()+0x42: unreachable instruction mm/readahead.o: warning: objtool: read_cache_pages_invalidate_page()+0x73: unreachable instruction mm/util.o: warning: objtool: page_mapping()+0xc6: unreachable instruction mm/truncate.o: warning: objtool: invalidate_complete_page2()+0xd4: unreachable instruction security/keys/encrypted-keys/encrypted.o: warning: objtool: derived_key_encrypt.constprop.12()+0x258: unreachable instruction mm/page-writeback.o: warning: objtool: __set_page_dirty_no_writeback()+0x8b: unreachable instruction arch/x86/mm/physaddr.o: warning: objtool: __phys_addr()+0x64: unreachable instruction kernel/exit.o: warning: objtool: release_task()+0xb0: unreachable instruction mm/filemap.o: warning: objtool: wake_up_page_bit()+0xfe: unreachable instruction arch/x86/kernel/apic/vector.o: warning: objtool: arch_early_irq_init()+0x43: unreachable instruction kernel/params.o: warning: objtool: kernel_add_sysfs_param()+0x69: unreachable instruction kernel/trace/trace.o: warning: objtool: __tracing_resize_ring_buffer()+0x75: unreachable instruction mm/list_lru.o: warning: objtool: __list_lru_walk_one.isra.12()+0x9f: unreachable instruction arch/x86/kernel/apic/io_apic.c:1034:6: warning: 'irq' may be used uninitialized in this function [-Wuninitialized] mm/workingset.o: warning: objtool: workingset_eviction()+0x8e: unreachable instruction mm/debug.o: warning: objtool: __dump_page()+0x161: unreachable instruction kernel/ucount.o: warning: objtool: user_namespace_sysctl_init()+0x41: unreachable instruction fs/cachefiles/bind.o: warning: objtool: cachefiles_daemon_bind()+0xc2: unreachable instruction kernel/smpboot.o: warning: objtool: smpboot_thread_fn()+0x15a: unreachable instruction mm/swap.o: warning: objtool: perf_trace_mm_lru_insertion()+0x276: unreachable instruction kernel/cred.o: warning: objtool: __put_cred()+0x2f: unreachable instruction kernel/trace/trace_syscalls.o: warning: objtool: ftrace_syscall_enter()+0x169: unreachable instruction mm/page_alloc.o: warning: objtool: free_one_page()+0xe8: unreachable instruction crypto/scatterwalk.o: warning: objtool: scatterwalk_ffwd()+0x78: unreachable instruction mm/compaction.o: warning: objtool: isolate_migratepages_block.constprop.20()+0x3ec: unreachable instruction mm/mmu_gather.o: warning: objtool: __tlb_remove_page_size()+0x3c: unreachable instruction mm/gup.o: warning: objtool: undo_dev_pagemap()+0xac: unreachable instruction mm/shmem.o: warning: objtool: shmem_write_end()+0x18a: unreachable instruction mm/percpu.o: warning: objtool: pcpu_setup_first_chunk()+0x87: unreachable instruction mm/pagewalk.o: warning: objtool: walk_page_vma()+0x43: unreachable instruction kernel/signal.o: warning: objtool: task_set_jobctl_pending()+0x37: unreachable instruction kernel/trace/ring_buffer_benchmark.o: warning: objtool: read_page()+0x7f: unreachable instruction crypto/algapi.o: warning: objtool: crypto_unregister_template()+0x4e: unreachable instruction fs/cachefiles/daemon.o: warning: objtool: cachefiles_daemon_release()+0x80: unreachable instruction mm/vmscan.o: warning: objtool: page_check_dirty_writeback()+0x17a: unreachable instruction kernel/workqueue.o: warning: objtool: workqueue_init_early()+0xd1: unreachable instruction mm/mlock.o: warning: objtool: __munlock_isolate_lru_page()+0x92: unreachable instruction mm/mprotect.o: warning: objtool: change_pte_range()+0x20d: unreachable instruction mm/page_io.o: warning: objtool: swap_slot_free_notify()+0xa7: unreachable instruction kernel/kexec_file.o: warning: objtool: arch_kexec_kernel_image_load()+0x23: unsupported stack register modification kernel/kexec_core.o: warning: objtool: kimage_alloc_pages()+0xe6: unreachable instruction kernel/futex.o: warning: objtool: get_futex_key()+0x30f: unreachable instruction mm/page_isolation.o: warning: objtool: start_isolate_page_range()+0x3f: unreachable instruction mm/madvise.o: warning: objtool: madvise_free_pte_range()+0x37b: unreachable instruction mm/memfd.o: warning: objtool: memfd_tag_pins()+0x103: unreachable instruction mm/userfaultfd.o: warning: objtool: mcopy_atomic_pte()+0x1a9: unreachable instruction mm/rmap.o: warning: objtool: __page_check_anon_rmap()+0x48: unreachable instruction mm/mmap.o: warning: objtool: __vma_adjust()+0x614: unreachable instruction mm/swap_state.o: warning: objtool: add_to_swap_cache()+0x1f9: unreachable instruction fs/cachefiles/key.o: warning: objtool: cachefiles_cook_key()+0x73: unreachable instruction mm/debug_page_ref.o: warning: objtool: perf_trace_page_ref_mod_and_test_template()+0x17e: unreachable instruction mm/vmalloc.o: warning: objtool: vb_free()+0x3a: unreachable instruction fs/cachefiles/interface.o: warning: objtool: cachefiles_put_object()+0x55: unreachable instruction block/blk-flush.o: warning: objtool: blk_flush_complete_seq()+0x55: unreachable instruction mm/ksm.c:1395:15: warning: 'found_rmap_hlist_len' may be used uninitialized in this function [-Wuninitialized] mm/zsmalloc.o: warning: objtool: remove_zspage()+0x4f: unreachable instruction kernel/sched/rt.o: warning: objtool: _pick_next_task_rt()+0x53: unreachable instruction crypto/rsa-pkcs1pad.o: warning: objtool: pkcs1pad_sg_set_buf()+0x58: unreachable instruction security/keys/keyring.o: warning: objtool: search_nested_keyrings()+0x51: unreachable instruction kernel/module.o: warning: objtool: frob_ro_after_init()+0x33: unreachable instruction block/elevator.o: warning: objtool: __elv_add_request()+0x25d: unreachable instruction fs/cachefiles/namei.o: warning: objtool: cachefiles_mark_object_active()+0x14d: unreachable instruction mm/memory.o: warning: objtool: __do_fault()+0x191: unreachable instruction arch/x86/kernel/cpu/common.o: warning: objtool: cpu_init()+0x24e: unreachable instruction block/bio.o: warning: objtool: bio_split()+0x3f: unreachable instruction fs/cachefiles/xattr.o: warning: objtool: cachefiles_check_object_type()+0x57: unreachable instruction fs/crypto/crypto.o: warning: objtool: fscrypt_do_page_crypto()+0x85: unreachable instruction mm/ksm.o: warning: objtool: remove_node_from_stable_tree()+0x2d: unreachable instruction mm/migrate.o: warning: objtool: remove_migration_pte()+0x72: unreachable instruction security/keys/big_key.o: warning: objtool: big_key_alloc_buffer()+0xf7: unreachable instruction mm/swapfile.o: warning: objtool: inc_cluster_info_page()+0x62: unreachable instruction crypto/gcm.o: warning: objtool: crypto_rfc4106_crypt()+0x215: unreachable instruction fs/cachefiles/rdwr.o: warning: objtool: cachefiles_read_backing_file()+0x763: unreachable instruction fs/crypto/bio.o: warning: objtool: __fscrypt_decrypt_bio()+0xbb: unreachable instruction mm/slub.o: warning: objtool: __ksize()+0x138: unreachable instruction block/blk-merge.o: warning: objtool: __blk_bios_map_sg()+0x1d9: unreachable instruction block/deadline-iosched.o: warning: objtool: deadline_exit_queue()+0x36: unreachable instruction block/partition-generic.o: warning: objtool: read_dev_sector()+0xa6: unreachable instruction fs/configfs/dir.o: warning: objtool: configfs_rmdir()+0x91: unreachable instruction block/blk-core.o: warning: objtool: blk_dequeue_request()+0x3f: unreachable instruction crypto/drbg.o: warning: objtool: drbg_kcapi_sym_ctr()+0x133: unreachable instruction block/bounce.o: warning: objtool: init_emergency_isa_pool()+0x64: unreachable instruction fs/ext4/bitmap.o: warning: objtool: ext4_inode_bitmap_csum_verify()+0xda: unreachable instruction fs/fscache/cache.o: warning: objtool: fscache_add_cache()+0x7e: unreachable instruction fs/fscache/object-list.o: warning: objtool: fscache_objlist_add()+0x57: unreachable instruction fs/fscache/object.o: warning: objtool: fscache_look_up_object()+0x63: unreachable instruction fs/fscache/cookie.o: warning: objtool: fscache_unhash_cookie()+0x97: unreachable instruction fs/fscache/operation.o: warning: objtool: fscache_put_operation()+0x6a: unreachable instruction fs/fscache/page.o: warning: objtool: __fscache_read_or_alloc_page()+0xac: unreachable instruction drivers/android/binder_alloc.o: warning: objtool: binder_insert_free_buffer()+0x36: unreachable instruction fs/f2fs/dir.o: warning: objtool: f2fs_set_link()+0x1a9: unreachable instruction block/bfq-iosched.c:4190:11: warning: 'bfqd' may be used uninitialized in this function [-Wuninitialized] block/cfq-iosched.o: warning: objtool: cfq_should_idle()+0x5c: unreachable instruction fs/f2fs/inode.o: warning: objtool: f2fs_inode_chksum()+0x2b8: unreachable instruction fs/gfs2/bmap.c:926:18: warning: 'height' may be used uninitialized in this function [-Wuninitialized] fs/gfs2/bmap.c:921:7: warning: 'len' may be used uninitialized in this function [-Wuninitialized] fs/gfs2/dir.o: warning: objtool: dir_make_exhash()+0x95: unreachable instruction fs/f2fs/inline.o: warning: objtool: f2fs_do_read_inline_data()+0x73: unreachable instruction fs/fuse/dir.o: warning: objtool: fuse_set_nowrite()+0x44: unreachable instruction fs/f2fs/gc.o: warning: objtool: is_alive()+0x3f0: unreachable instruction fs/ext4/fsync.o: warning: objtool: ext4_sync_file()+0x9f: unreachable instruction fs/fuse/dev.o: warning: objtool: fuse_check_page()+0x1fa: unreachable instruction fs/f2fs/xattr.o: warning: objtool: read_inline_xattr()+0x1dd: unreachable instruction fs/nilfs2/file.o: warning: objtool: nilfs_page_mkwrite()+0x1e4: unreachable instruction crypto/tcrypt.o: warning: objtool: sg_init_aead()+0x2a8: unreachable instruction fs/f2fs/checkpoint.o: warning: objtool: f2fs_set_meta_page_dirty()+0x105: unreachable instruction fs/jbd2/transaction.o: warning: objtool: jbd2_journal_file_inode()+0xf7: unreachable instruction fs/ext4/indirect.o: warning: objtool: ext4_ind_map_blocks()+0x113: unreachable instruction drivers/bcma/driver_chipcommon_pmu.o: warning: objtool: bcma_pmu_pll_clock()+0x4b: unreachable instruction fs/ext4/extents_status.o: warning: objtool: __es_insert_extent()+0x117: unreachable instruction fs/gfs2/bmap.o: warning: objtool: gfs2_iomap_alloc.isra.16()+0x6b: unreachable instruction drivers/block/brd.o: warning: objtool: brd_insert_page()+0x102: unreachable instruction fs/nilfs2/inode.o: warning: objtool: nilfs_set_page_dirty()+0x81: unreachable instruction fs/ext4/ioctl.o: warning: objtool: reset_inode_seed()+0x148: unreachable instruction fs/f2fs/recovery.o: warning: objtool: check_index_in_prev_nodes()+0x65: unreachable instruction fs/ext4/ialloc.o: warning: objtool: __ext4_new_inode()+0xe82: unreachable instruction fs/ext4/inline.o: warning: objtool: ext4_write_inline_data()+0x80: unreachable instruction fs/jfs/jfs_xtree.o: warning: objtool: xtTruncate()+0x7a: unreachable instruction fs/ext4/extents.o: warning: objtool: ext4_extent_block_csum()+0x55: unreachable instruction fs/ext4/mmp.o: warning: objtool: ext4_mmp_csum()+0x49: unreachable instruction fs/jfs/jfs_imap.o: warning: objtool: diFree()+0x530: unreachable instruction lib/mpi/mpicoder.c:352:8: warning: 'buff' may be used uninitialized in this function [-Wuninitialized] fs/ext4/move_extent.o: warning: objtool: mext_page_mkuptodate()+0xc1: unreachable instruction fs/jbd2/recovery.o: warning: objtool: jbd2_descriptor_block_csum_verify()+0xf7: unreachable instruction fs/f2fs/super.o: warning: objtool: sanity_check_raw_super()+0x97: unreachable instruction fs/f2fs/file.o: warning: objtool: fill_zero()+0x11a: unreachable instruction fs/ext4/page-io.o: warning: objtool: ext4_finish_bio()+0xb2: unreachable instruction fs/ext4/readpage.o: warning: objtool: mpage_end_io()+0x9f: unreachable instruction fs/nilfs2/dir.o: warning: objtool: nilfs_get_page()+0xa8: unreachable instruction fs/jfs/jfs_metapage.o: warning: objtool: metapage_releasepage()+0xcd: unreachable instruction drivers/android/binder.o: warning: objtool: binder_pop_transaction_ilocked()+0x33: unreachable instruction fs/gfs2/lops.o: warning: objtool: gfs2_unpin()+0x46: unreachable instruction fs/nilfs2/page.o: warning: objtool: nilfs_copy_page()+0xb4: unreachable instruction fs/jfs/jfs_txnmgr.o: warning: objtool: LogSyncRelease()+0x42: unreachable instruction fs/jfs/jfs_logmgr.o: warning: objtool: lbmIODone()+0x17d: unreachable instruction fs/isofs/rock.o: warning: objtool: rock_ridge_symlink_readpage()+0x247: unreachable instruction lib/scatterlist.o: warning: objtool: sg_init_one()+0x4a: unreachable instruction fs/jbd2/commit.o: warning: objtool: jbd2_block_tag_csum_set()+0x1be: unreachable instruction drivers/block/null_blk_main.o: warning: objtool: null_init_queue()+0x33: unreachable instruction lib/list_debug.o: warning: objtool: __list_add_valid()+0x4b: unreachable instruction fs/f2fs/data.o: warning: objtool: f2fs_release_page()+0x8b: unreachable instruction fs/fuse/file.o: warning: objtool: fuse_readpages_end()+0xbf: unreachable instruction fs/jbd2/checkpoint.o: warning: objtool: __jbd2_journal_insert_checkpoint()+0x46: unreachable instruction fs/nilfs2/mdt.o: warning: objtool: nilfs_mdt_forget_block()+0xe1: unreachable instruction fs/gfs2/glock.o: warning: objtool: __gfs2_glock_put()+0x84: unreachable instruction fs/nilfs2/btnode.o: warning: objtool: nilfs_btnode_create_block()+0x8e: unreachable instruction lib/rhashtable.c:264:2: warning: 'next' may be used uninitialized in this function [-Wuninitialized] fs/nilfs2/bmap.o: warning: objtool: nilfs_bmap_data_get_key()+0xb0: unreachable instruction fs/f2fs/node.o: warning: objtool: f2fs_set_node_page_dirty()+0x105: unreachable instruction fs/ext4/resize.o: warning: objtool: ext4_alloc_group_tables()+0x5b: unreachable instruction fs/f2fs/segment.o: warning: objtool: __check_sit_bitmap()+0x6f: unreachable instruction drivers/char/tpm/tpm-sysfs.c:37:16: warning: 'tpm_buf.data' may be used uninitialized in this function [-Wuninitialized] lib/genalloc.o: warning: objtool: gen_pool_free()+0x8a: unreachable instruction lib/mpi/mpi-pow.o: warning: objtool: mpi_powm()+0x25f: unreachable instruction fs/gfs2/meta_io.o: warning: objtool: gfs2_aspace_writepage()+0xd2: unreachable instruction lib/syscall.o: warning: objtool: collect_syscall()+0x1c8: unreachable instruction fs/ext4/namei.o: warning: objtool: ext4_dirent_csum()+0x52: unreachable instruction lib/assoc_array.o: warning: objtool: assoc_array_destroy_subtree()+0x6e: unreachable instruction fs/sysfs/file.o: warning: objtool: sysfs_kf_seq_show()+0x57: unreachable instruction lib/oid_registry.o: warning: objtool: sprint_OID()+0x34: unreachable instruction fs/gfs2/aops.o: warning: objtool: jdata_set_page_dirty()+0x48: unreachable instruction fs/ext4/xattr.o: warning: objtool: ext4_xattr_block_csum()+0x1ee: unreachable instruction fs/jbd2/revoke.o: warning: objtool: jbd2_journal_init_revoke()+0x37: unreachable instruction lib/plist.o: warning: objtool: plist_requeue()+0x33: unreachable instruction fs/ext4/inode.o: warning: objtool: ext4_da_should_update_i_disksize()+0x4c: unreachable instruction drivers/block/cryptoloop.o: warning: objtool: cryptoloop_transfer()+0x19b: unreachable instruction fs/nilfs2/btree.o: warning: objtool: nilfs_btree_lookup_dirty_buffers()+0xa4: unreachable instruction fs/reiserfs/bitmap.o: warning: objtool: reiserfs_read_bitmap_block()+0x126: unreachable instruction lib/dynamic_debug.o: warning: objtool: __dynamic_pr_debug()+0x55: unreachable instruction fs/proc/task_mmu.o: warning: objtool: pte_to_pagemap_entry.isra.33()+0x241: unreachable instruction arch/x86/kernel/traps.o: warning: objtool: ist_begin_non_atomic()+0x2b: unreachable instruction lib/kobject.o: warning: objtool: create_dir()+0xb3: unreachable instruction fs/ext4/mballoc.o: warning: objtool: mb_find_order_for_block()+0x3f: unreachable instruction lib/radix-tree.o: warning: objtool: radix_tree_insert()+0x3e: unreachable instruction fs/gfs2/ops_fstype.o: warning: objtool: gfs2_read_super()+0xc3: unreachable instruction fs/gfs2/trans.o: warning: objtool: gfs2_trans_begin()+0x48: unreachable instruction fs/gfs2/quota.o: warning: objtool: qd_get()+0x1b6: unreachable instruction fs/udf/file.o: warning: objtool: udf_adinicb_writepage()+0xaf: unreachable instruction include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] fs/reiserfs/namei.o: warning: objtool: linear_search_in_dir_item()+0xb7: unreachable instruction fs/jbd2/journal.o: warning: objtool: get_slab()+0x41: unreachable instruction drivers/dma-buf/dma-buf.o: warning: objtool: dma_buf_release()+0x48: unreachable instruction fs/nilfs2/segment.o: warning: objtool: nilfs_transaction_unlock()+0x58: unreachable instruction fs/gfs2/rgrp.o: warning: objtool: gfs2_alloc_extent()+0x43f: unreachable instruction arch/x86/kernel/nmi.o: warning: objtool: do_nmi()+0xcd: unreachable instruction arch/x86/kernel/setup.o: warning: objtool: extend_brk()+0x36: unreachable instruction drivers/char/virtio_console.o: warning: objtool: free_buf()+0x4f: unreachable instruction fs/reiserfs/file.o: warning: objtool: reiserfs_commit_page()+0xe8: unreachable instruction fs/reiserfs/inode.o: warning: objtool: reiserfs_releasepage()+0x72: unreachable instruction fs/proc/array.o: warning: objtool: proc_task_name()+0x59: unreachable instruction fs/pipe.o: warning: objtool: anon_pipe_buf_steal()+0x73: unreachable instruction fs/udf/truncate.o: warning: objtool: udf_truncate_extents()+0x40: unreachable instruction fs/udf/symlink.o: warning: objtool: udf_symlink_filler()+0x143: unreachable instruction drivers/dma-buf/reservation.c:211:7: warning: 'i' may be used uninitialized in this function [-Wuninitialized] fs/udf/inode.o: warning: objtool: udf_expand_file_adinicb()+0x1ef: unreachable instruction fs/exec.o: warning: objtool: de_thread()+0x284: unreachable instruction drivers/dma-buf/dma-fence.o: warning: objtool: dma_fence_init()+0x44: unreachable instruction drivers/input/gameport/gameport.o: warning: objtool: gameport_start_polling()+0x57: unreachable instruction fs/proc/page.o: warning: objtool: kpagecount_read()+0x20f: unreachable instruction fs/file.o: warning: objtool: __fd_install()+0xc0: unreachable instruction arch/x86/kernel/e820.c:652:2: warning: 'gapstart' may be used uninitialized in this function [-Wuninitialized] fs/seq_file.o: warning: objtool: seq_escape()+0x49: unreachable instruction fs/ext4/super.o: warning: objtool: bdev_try_to_free_page()+0x68: unreachable instruction fs/dcache.o: warning: objtool: __d_rehash()+0x9f: unreachable instruction fs/inode.o: warning: objtool: clear_inode()+0x44: unreachable instruction arch/x86/kernel/e820.o: warning: objtool: e820__reallocate_tables()+0x4d: unreachable instruction arch/x86/kernel/quirks.o: warning: objtool: ich_force_hpet_resume()+0x36: unreachable instruction fs/libfs.o: warning: objtool: simple_write_end()+0xf4: unreachable instruction fs/reiserfs/xattr.o: warning: objtool: delete_one_xattr()+0x63: unreachable instruction arch/x86/kernel/hw_breakpoint.c:366:18: warning: 'align' may be used uninitialized in this function [-Wuninitialized] arch/x86/kernel/alternative.o: warning: objtool: apply_alternatives()+0x74: unreachable instruction fs/reiserfs/stree.o: warning: objtool: unmap_buffers()+0x82: unreachable instruction drivers/i2c/i2c-core-base.c:235:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] fs/namei.o: warning: objtool: page_get_link()+0xca: unreachable instruction drivers/ide/ide-io.o: warning: objtool: start_request()+0x38: unreachable instruction fs/mpage.o: warning: objtool: clean_buffers()+0x6e: unreachable instruction fs/reiserfs/journal.o: warning: objtool: submit_logged_buffer()+0x2e: unreachable instruction fs/block_dev.o: warning: objtool: blkdev_get()+0x129: unreachable instruction arch/x86/kernel/ftrace.o: warning: objtool: ftrace_modify_code.constprop.8()+0x67: unreachable instruction fs/mbcache.o: warning: objtool: mb_cache_shrink()+0x160: unreachable instruction arch/x86/kernel/machine_kexec_64.o: warning: objtool: arch_kexec_kernel_image_load()+0x3c: unsupported stack register modification fs/userfaultfd.o: warning: objtool: userfaultfd_register()+0x228: unreachable instruction drivers/base/devres.o: warning: objtool: remove_nodes.isra.2()+0x125: unreachable instruction fs/direct-io.o: warning: objtool: do_direct_IO()+0x5cb: unreachable instruction fs/aio.o: warning: objtool: aio_migratepage()+0xe2: unreachable instruction fs/locks.o: warning: objtool: locks_free_lock()+0x3b: unreachable instruction fs/iomap.o: warning: objtool: iomap_set_range_uptodate()+0xe3: unreachable instruction fs/buffer.o: warning: objtool: __clear_page_buffers()+0x3e: unreachable instruction drivers/ide/ide-probe.o: warning: objtool: ide_unregister()+0x35: unreachable instruction drivers/base/regmap/regmap-irq.o: warning: objtool: regmap_irq_thread()+0xce: unreachable instruction drivers/platform/chrome/cros_ec_spi.o: warning: objtool: cros_ec_spi_receive_packet()+0x3c: unreachable instruction drivers/platform/chrome/cros_ec_proto.o: warning: objtool: prepare_packet()+0x35: unreachable instruction drivers/mmc/core/sdio_ops.o: warning: objtool: mmc_io_rw_extended()+0x200: unreachable instruction drivers/platform/chrome/cros_ec_i2c.o: warning: objtool: cros_ec_pkt_xfer_i2c()+0x6b: unreachable instruction drivers/gpu/drm/selftests/test-drm_mm.o: warning: objtool: igt_topdown()+0x349: unreachable instruction drivers/remoteproc/remoteproc_core.o: warning: objtool: rproc_alloc_carveout()+0x62: unreachable instruction drivers/mmc/host/wbsd.o: warning: objtool: wbsd_chip_config()+0x32: unreachable instruction drivers/rpmsg/virtio_rpmsg_bus.o: warning: objtool: rpmsg_sg_init()+0x74: unreachable instruction drivers/virtio/virtio.o: warning: objtool: virtio_dev_probe()+0x82: unreachable instruction drivers/spi/spi.o: warning: objtool: spi_map_buf()+0x164: unreachable instruction drivers/tty/serial/8250/8250_core.c:247:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] drivers/mmc/host/mtk-sd.o: warning: objtool: msdc_drv_probe()+0x49c: unreachable instruction drivers/tty/serial/8250/8250_core.o: warning: objtool: serial_unlink_irq_chain()+0x64: unreachable instruction drivers/uio/uio_pruss.o: warning: objtool: pruss_probe()+0x169: unreachable instruction drivers/media/common/videobuf2/videobuf2-vmalloc.o: warning: objtool: vb2_vmalloc_dmabuf_ops_map()+0xa5: unreachable instruction drivers/virtio/virtio_ring.o: warning: objtool: detach_buf()+0xc0: unreachable instruction drivers/misc/ad525x_dpot.o: warning: objtool: dpot_write_spi()+0x91: unreachable instruction drivers/target/target_core_sbc.o: warning: objtool: compare_and_write_callback()+0x1a2: unreachable instruction drivers/target/target_core_rd.o: warning: objtool: rd_allocate_sgl_table.isra.7()+0x18d: unreachable instruction drivers/mmc/host/android-goldfish.o: warning: objtool: goldfish_mmc_remove()+0x3e: unreachable instruction drivers/mmc/host/sdhci.o: warning: objtool: sdhci_prepare_data()+0xb5: unreachable instruction drivers/target/target_core_pscsi.o: warning: objtool: pscsi_map_sg()+0x69: unreachable instruction drivers/target/target_core_transport.o: warning: objtool: transport_kmap_data_sg()+0x48: unreachable instruction drivers/video/backlight/adp8860_bl.c:579:10: warning: 'ret_val' may be used uninitialized in this function [-Wuninitialized] drivers/scsi/libsas/sas_expander.o: warning: objtool: sas_ex_discover_expander()+0x11c: unreachable instruction drivers/uwb/est.o: warning: objtool: uwb_est_get_size()+0xa4: unreachable instruction drivers/scsi/scsi_lib_dma.o: warning: objtool: scsi_dma_map()+0x7a: unreachable instruction drivers/gpu/drm/ttm/ttm_tt.o: warning: objtool: ttm_tt_swapin()+0x3c: unreachable instruction fs/xfs/xfs_aops.o: warning: objtool: xfs_writepage_map()+0x26d: unreachable instruction drivers/uwb/lc-dev.o: warning: objtool: uwb_dev_add()+0x39: unreachable instruction drivers/gpu/drm/ttm/ttm_bo.o: warning: objtool: ttm_bo_release_list()+0x3b: unreachable instruction drivers/scsi/st.o: warning: objtool: sgl_unmap_user_pages.isra.8()+0xba: unreachable instruction drivers/video/fbdev/core/fb_defio.o: warning: objtool: fb_deferred_io_set_page_dirty()+0x8b: unreachable instruction drivers/scsi/scsi_debug.o: warning: objtool: prot_verify_write()+0x4b: unreachable instruction drivers/tty/serial/fsl_lpuart.o: warning: objtool: lpuart_resume()+0x1f3: unreachable instruction drivers/video/fbdev/ocfb.o: warning: objtool: ocfb_probe()+0x1c9: unreachable instruction drivers/gpu/drm/drm_crtc_helper.o: warning: objtool: drm_crtc_helper_set_config()+0x4b: unreachable instruction drivers/gpu/drm/drm_global.o: warning: objtool: drm_global_release()+0x3b: unreachable instruction drivers/gpu/drm/drm_scatter.o: warning: objtool: drm_sg_cleanup()+0x68: unreachable instruction drivers/gpu/drm/drm_pci.o: warning: objtool: drm_pci_alloc()+0x96: unreachable instruction drivers/gpu/drm/virtio/virtgpu_vq.o: warning: objtool: virtio_gpu_get_vbuf()+0x62: unreachable instruction drivers/gpu/drm/drm_atomic.c:412:38: warning: 'crtc_state' may be used uninitialized in this function [-Wuninitialized] drivers/gpu/drm/drm_gem.o: warning: objtool: drm_gem_get_pages()+0x172: unreachable instruction drivers/gpu/drm/drm_mm.o: warning: objtool: drm_mm_remove_node()+0x47: unreachable instruction drivers/gpu/drm/drm_prime.o: warning: objtool: drm_gem_map_dma_buf()+0x14f: unreachable instruction drivers/gpu/drm/drm_vblank.o: warning: objtool: drm_vblank_restore()+0x85: unreachable instruction arch/x86/mm/physaddr.o: warning: objtool: __phys_addr()+0x64: unreachable instruction kernel/params.o: warning: objtool: kernel_add_sysfs_param()+0x69: unreachable instruction arch/x86/kernel/nmi.o: warning: objtool: do_nmi()+0xcd: unreachable instruction arch/x86/mm/init_64.o: warning: objtool: __init_extra_mapping()+0xb2: unreachable instruction arch/x86/kernel/setup.o: warning: objtool: extend_brk()+0x36: unreachable instruction mm/util.o: warning: objtool: page_mapping()+0xc6: unreachable instruction kernel/printk/printk.c:186:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] arch/x86/kernel/cpu/common.o: warning: objtool: cpu_init()+0x24e: unreachable instruction kernel/dma/swiotlb.o: warning: objtool: swiotlb_tbl_map_single()+0x133: unreachable instruction mm/truncate.o: warning: objtool: invalidate_complete_page2()+0xd4: unreachable instruction mm/list_lru.o: warning: objtool: __list_lru_walk_one.isra.12()+0x9f: unreachable instruction mm/page-writeback.o: warning: objtool: set_page_dirty()+0x10c: unreachable instruction mm/debug.o: warning: objtool: __dump_page()+0x161: unreachable instruction mm/percpu.o: warning: objtool: pcpu_setup_first_chunk()+0x87: unreachable instruction kernel/workqueue.o: warning: objtool: workqueue_init_early()+0xd1: unreachable instruction fs/file.o: warning: objtool: __fd_install()+0xc2: unreachable instruction fs/seq_file.o: warning: objtool: seq_escape()+0x49: unreachable instruction crypto/api.o: warning: objtool: __crypto_alloc_tfm()+0x42: unreachable instruction fs/libfs.o: warning: objtool: simple_write_end()+0xf4: unreachable instruction mm/swap.o: warning: objtool: perf_trace_mm_lru_insertion()+0x276: unreachable instruction fs/sysfs/file.o: warning: objtool: sysfs_kf_seq_show()+0x57: unreachable instruction fs/mpage.o: warning: objtool: clean_buffers()+0x6e: unreachable instruction fs/configfs/dir.o: warning: objtool: configfs_rmdir()+0x91: unreachable instruction kernel/signal.o: warning: objtool: task_set_jobctl_pending()+0x37: unreachable instruction fs/exec.o: warning: objtool: de_thread()+0x284: unreachable instruction kernel/module.o: warning: objtool: frob_ro_after_init()+0x33: unreachable instruction fs/block_dev.o: warning: objtool: blkdev_get()+0x129: unreachable instruction drivers/dma-buf/reservation.c:211:7: warning: 'i' may be used uninitialized in this function [-Wuninitialized] fs/dcache.o: warning: objtool: __d_rehash()+0x9f: unreachable instruction fs/inode.o: warning: objtool: clear_inode()+0x44: unreachable instruction kernel/trace/trace.o: warning: objtool: __tracing_resize_ring_buffer()+0x75: unreachable instruction mm/shmem.o: warning: objtool: shmem_write_end()+0x18a: unreachable instruction mm/mmap.o: warning: objtool: __vma_adjust()+0x614: unreachable instruction block/bio.o: warning: objtool: bio_split()+0x3f: unreachable instruction mm/debug_page_ref.o: warning: objtool: perf_trace_page_ref_mod_and_test_template()+0x17e: unreachable instruction mm/vmalloc.o: warning: objtool: vb_free()+0x3a: unreachable instruction drivers/dma-buf/dma-fence.o: warning: objtool: dma_fence_init()+0x44: unreachable instruction block/elevator.o: warning: objtool: __elv_add_request()+0x25d: unreachable instruction drivers/dma-buf/dma-buf.o: warning: objtool: dma_buf_vunmap()+0x7a: unreachable instruction mm/page_alloc.o: warning: objtool: free_one_page()+0xe8: unreachable instruction mm/filemap.o: warning: objtool: try_to_release_page()+0xaf: unreachable instruction block/blk-flush.o: warning: objtool: blk_flush_complete_seq()+0x55: unreachable instruction mm/vmscan.o: warning: objtool: page_check_dirty_writeback()+0x17a: unreachable instruction drivers/ide/ide-probe.o: warning: objtool: ide_unregister()+0x35: unreachable instruction drivers/input/gameport/gameport.o: warning: objtool: gameport_start_polling()+0x57: unreachable instruction drivers/i2c/i2c-core-base.c:235:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] mm/swapfile.o: warning: objtool: inc_cluster_info_page()+0x62: unreachable instruction mm/migrate.o: warning: objtool: remove_migration_pte()+0x72: unreachable instruction fs/direct-io.o: warning: objtool: do_direct_IO()+0x5cb: unreachable instruction mm/memory.o: warning: objtool: __do_fault()+0x191: unreachable instruction crypto/scatterwalk.o: warning: objtool: scatterwalk_ffwd()+0x78: unreachable instruction fs/namei.o: warning: objtool: page_get_link()+0xca: unreachable instruction fs/locks.o: warning: objtool: locks_free_lock()+0x3b: unreachable instruction drivers/base/devres.o: warning: objtool: remove_nodes.isra.2()+0x125: unreachable instruction fs/iomap.o: warning: objtool: iomap_set_range_uptodate()+0xe3: unreachable instruction fs/buffer.o: warning: objtool: block_is_partially_uptodate()+0x79: unreachable instruction crypto/algapi.o: warning: objtool: crypto_unregister_template()+0x4e: unreachable instruction block/blk-merge.o: warning: objtool: __blk_bios_map_sg()+0x1d9: unreachable instruction drivers/misc/ad525x_dpot.o: warning: objtool: dpot_write_spi()+0x91: unreachable instruction mm/slub.o: warning: objtool: __ksize()+0x138: unreachable instruction block/partition-generic.o: warning: objtool: read_dev_sector()+0xa6: unreachable instruction drivers/platform/chrome/cros_ec_proto.o: warning: objtool: prepare_packet()+0x35: unreachable instruction drivers/media/common/videobuf2/videobuf2-vmalloc.o: warning: objtool: vb2_vmalloc_dmabuf_ops_map()+0xa5: unreachable instruction drivers/gpu/drm/ttm/ttm_tt.o: warning: objtool: ttm_tt_swapin()+0x3c: unreachable instruction drivers/mmc/host/sdhci.o: warning: objtool: sdhci_prepare_data()+0xb6: unreachable instruction block/blk-core.o: warning: objtool: blk_dequeue_request()+0x3e: unreachable instruction drivers/virtio/virtio.o: warning: objtool: virtio_dev_probe()+0x82: unreachable instruction lib/scatterlist.o: warning: objtool: sg_init_one()+0x4a: unreachable instruction lib/rhashtable.c:264:2: warning: 'next' may be used uninitialized in this function [-Wuninitialized] drivers/gpu/drm/ttm/ttm_bo.o: warning: objtool: ttm_bo_release_list()+0x3b: unreachable instruction drivers/gpu/drm/drm_gem.o: warning: objtool: drm_gem_get_pages()+0x172: unreachable instruction drivers/virtio/virtio_ring.o: warning: objtool: detach_buf()+0xc0: unreachable instruction lib/list_debug.o: warning: objtool: __list_del_entry_valid()+0x52: unreachable instruction drivers/spi/spi.o: warning: objtool: spi_map_buf()+0x164: unreachable instruction drivers/tty/serial/8250/8250_core.c:247:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap-irq.o: warning: objtool: regmap_irq_thread()+0xce: unreachable instruction drivers/gpu/drm/drm_global.o: warning: objtool: drm_global_item_unref()+0x51: unreachable instruction drivers/tty/serial/8250/8250_core.o: warning: objtool: serial_unlink_irq_chain()+0x64: unreachable instruction drivers/video/fbdev/core/fb_defio.o: warning: objtool: fb_deferred_io_set_page_dirty()+0x8b: unreachable instruction lib/oid_registry.o: warning: objtool: sprint_OID()+0x34: unreachable instruction drivers/gpu/drm/drm_mm.o: warning: objtool: drm_mm_remove_node()+0x47: unreachable instruction drivers/gpu/drm/drm_prime.o: warning: objtool: drm_gem_map_dma_buf()+0x14f: unreachable instruction lib/kobject.o: warning: objtool: create_dir()+0xb3: unreachable instruction crypto/asymmetric_keys/public_key.o: warning: objtool: public_key_verify_signature()+0x3d: unreachable instruction lib/radix-tree.o: warning: objtool: radix_tree_tag_set()+0x55: unreachable instruction lib/dynamic_debug.o: warning: objtool: __dynamic_dev_dbg()+0x52: unreachable instruction drivers/target/target_core_transport.o: warning: objtool: transport_kmap_data_sg()+0x48: unreachable instruction drivers/gpu/drm/drm_vblank.o: warning: objtool: drm_vblank_restore()+0x85: unreachable instruction Full Log # git rev-parse -q --verify ab6e1f378f546b0caa616ac0fcc730725cc2d222^{commit} ab6e1f378f546b0caa616ac0fcc730725cc2d222 already have revision, skipping fetch # git checkout -q -f -B kisskb ab6e1f378f546b0caa616ac0fcc730725cc2d222 # git clean -qxdf # < git log -1 # commit ab6e1f378f546b0caa616ac0fcc730725cc2d222 # Merge: 35c55685fc80 3941552aec1e # Author: Linus Torvalds <torvalds@linux-foundation.org> # Date: Sat Nov 10 08:58:48 2018 -0600 # # Merge tag 'for-linus-4.20a-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip # # Pull xen fixes from Juergen Gross: # "Several fixes, mostly for rather recent regressions when running under # Xen" # # * tag 'for-linus-4.20a-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: # xen: remove size limit of privcmd-buf mapping interface # xen: fix xen_qlock_wait() # x86/xen: fix pv boot # xen-blkfront: fix kernel panic with negotiate_mq error path # xen/grant-table: Fix incorrect gnttab_dma_free_pages() pr_debug message # CONFIG_XEN_PV breaks xen_create_contiguous_region on ARM # < /opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version # < git log --format=%s --max-count=1 ab6e1f378f546b0caa616ac0fcc730725cc2d222 # < 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=0xFCE89DC3 # 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- /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(); } ^~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/rcu/sync.o: warning: objtool: rcu_sync_func()+0x2f: unreachable instruction kernel/dma/direct.o: warning: objtool: dma_direct_map_sg()+0x85: unreachable instruction /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:186:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] kernel/events/ring_buffer.o: warning: objtool: rb_alloc_aux_page()+0x46: unreachable instruction kernel/dma/swiotlb.o: warning: objtool: swiotlb_tbl_map_single()+0x133: unreachable instruction arch/x86/mm/init_64.o: warning: objtool: __init_extra_mapping()+0xb2: unreachable instruction kernel/events/uprobes.o: warning: objtool: __replace_page()+0x119: unreachable instruction kernel/irq/matrix.o: warning: objtool: irq_matrix_assign_system()+0x3c: unreachable instruction crypto/asymmetric_keys/public_key.o: warning: objtool: public_key_verify_signature()+0x3d: unreachable instruction crypto/api.o: warning: objtool: __crypto_alloc_tfm()+0x42: unreachable instruction mm/readahead.o: warning: objtool: read_cache_pages_invalidate_page()+0x73: unreachable instruction mm/util.o: warning: objtool: page_mapping()+0xc6: unreachable instruction mm/truncate.o: warning: objtool: invalidate_complete_page2()+0xd4: unreachable instruction security/keys/encrypted-keys/encrypted.o: warning: objtool: derived_key_encrypt.constprop.12()+0x258: unreachable instruction mm/page-writeback.o: warning: objtool: __set_page_dirty_no_writeback()+0x8b: unreachable instruction arch/x86/mm/physaddr.o: warning: objtool: __phys_addr()+0x64: unreachable instruction kernel/exit.o: warning: objtool: release_task()+0xb0: unreachable instruction mm/filemap.o: warning: objtool: wake_up_page_bit()+0xfe: unreachable instruction arch/x86/kernel/apic/vector.o: warning: objtool: arch_early_irq_init()+0x43: unreachable instruction kernel/params.o: warning: objtool: kernel_add_sysfs_param()+0x69: unreachable instruction kernel/trace/trace.o: warning: objtool: __tracing_resize_ring_buffer()+0x75: unreachable instruction mm/list_lru.o: warning: objtool: __list_lru_walk_one.isra.12()+0x9f: 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] mm/workingset.o: warning: objtool: workingset_eviction()+0x8e: unreachable instruction mm/debug.o: warning: objtool: __dump_page()+0x161: unreachable instruction kernel/ucount.o: warning: objtool: user_namespace_sysctl_init()+0x41: unreachable instruction fs/cachefiles/bind.o: warning: objtool: cachefiles_daemon_bind()+0xc2: unreachable instruction kernel/smpboot.o: warning: objtool: smpboot_thread_fn()+0x15a: unreachable instruction mm/swap.o: warning: objtool: perf_trace_mm_lru_insertion()+0x276: unreachable instruction kernel/cred.o: warning: objtool: __put_cred()+0x2f: unreachable instruction kernel/trace/trace_syscalls.o: warning: objtool: ftrace_syscall_enter()+0x169: unreachable instruction mm/page_alloc.o: warning: objtool: free_one_page()+0xe8: unreachable instruction crypto/scatterwalk.o: warning: objtool: scatterwalk_ffwd()+0x78: unreachable instruction mm/compaction.o: warning: objtool: isolate_migratepages_block.constprop.20()+0x3ec: unreachable instruction mm/mmu_gather.o: warning: objtool: __tlb_remove_page_size()+0x3c: unreachable instruction mm/gup.o: warning: objtool: undo_dev_pagemap()+0xac: unreachable instruction mm/shmem.o: warning: objtool: shmem_write_end()+0x18a: unreachable instruction mm/percpu.o: warning: objtool: pcpu_setup_first_chunk()+0x87: unreachable instruction mm/pagewalk.o: warning: objtool: walk_page_vma()+0x43: unreachable instruction kernel/signal.o: warning: objtool: task_set_jobctl_pending()+0x37: unreachable instruction kernel/trace/ring_buffer_benchmark.o: warning: objtool: read_page()+0x7f: unreachable instruction crypto/algapi.o: warning: objtool: crypto_unregister_template()+0x4e: unreachable instruction fs/cachefiles/daemon.o: warning: objtool: cachefiles_daemon_release()+0x80: unreachable instruction mm/vmscan.o: warning: objtool: page_check_dirty_writeback()+0x17a: unreachable instruction kernel/workqueue.o: warning: objtool: workqueue_init_early()+0xd1: unreachable instruction mm/mlock.o: warning: objtool: __munlock_isolate_lru_page()+0x92: unreachable instruction mm/mprotect.o: warning: objtool: change_pte_range()+0x20d: unreachable instruction mm/page_io.o: warning: objtool: swap_slot_free_notify()+0xa7: unreachable instruction kernel/kexec_file.o: warning: objtool: arch_kexec_kernel_image_load()+0x23: unsupported stack register modification kernel/kexec_core.o: warning: objtool: kimage_alloc_pages()+0xe6: unreachable instruction kernel/futex.o: warning: objtool: get_futex_key()+0x30f: unreachable instruction mm/page_isolation.o: warning: objtool: start_isolate_page_range()+0x3f: unreachable instruction mm/madvise.o: warning: objtool: madvise_free_pte_range()+0x37b: unreachable instruction mm/memfd.o: warning: objtool: memfd_tag_pins()+0x103: unreachable instruction mm/userfaultfd.o: warning: objtool: mcopy_atomic_pte()+0x1a9: unreachable instruction mm/rmap.o: warning: objtool: __page_check_anon_rmap()+0x48: unreachable instruction mm/mmap.o: warning: objtool: __vma_adjust()+0x614: unreachable instruction mm/swap_state.o: warning: objtool: add_to_swap_cache()+0x1f9: unreachable instruction fs/cachefiles/key.o: warning: objtool: cachefiles_cook_key()+0x73: unreachable instruction mm/debug_page_ref.o: warning: objtool: perf_trace_page_ref_mod_and_test_template()+0x17e: unreachable instruction mm/vmalloc.o: warning: objtool: vb_free()+0x3a: unreachable instruction fs/cachefiles/interface.o: warning: objtool: cachefiles_put_object()+0x55: unreachable instruction block/blk-flush.o: warning: objtool: blk_flush_complete_seq()+0x55: 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] mm/zsmalloc.o: warning: objtool: remove_zspage()+0x4f: unreachable instruction kernel/sched/rt.o: warning: objtool: _pick_next_task_rt()+0x53: unreachable instruction crypto/rsa-pkcs1pad.o: warning: objtool: pkcs1pad_sg_set_buf()+0x58: unreachable instruction security/keys/keyring.o: warning: objtool: search_nested_keyrings()+0x51: unreachable instruction kernel/module.o: warning: objtool: frob_ro_after_init()+0x33: unreachable instruction block/elevator.o: warning: objtool: __elv_add_request()+0x25d: unreachable instruction fs/cachefiles/namei.o: warning: objtool: cachefiles_mark_object_active()+0x14d: unreachable instruction mm/memory.o: warning: objtool: __do_fault()+0x191: unreachable instruction arch/x86/kernel/cpu/common.o: warning: objtool: cpu_init()+0x24e: unreachable instruction block/bio.o: warning: objtool: bio_split()+0x3f: unreachable instruction fs/cachefiles/xattr.o: warning: objtool: cachefiles_check_object_type()+0x57: unreachable instruction fs/crypto/crypto.o: warning: objtool: fscrypt_do_page_crypto()+0x85: unreachable instruction mm/ksm.o: warning: objtool: remove_node_from_stable_tree()+0x2d: unreachable instruction mm/migrate.o: warning: objtool: remove_migration_pte()+0x72: unreachable instruction security/keys/big_key.o: warning: objtool: big_key_alloc_buffer()+0xf7: unreachable instruction mm/swapfile.o: warning: objtool: inc_cluster_info_page()+0x62: unreachable instruction crypto/gcm.o: warning: objtool: crypto_rfc4106_crypt()+0x215: unreachable instruction fs/cachefiles/rdwr.o: warning: objtool: cachefiles_read_backing_file()+0x763: unreachable instruction fs/crypto/bio.o: warning: objtool: __fscrypt_decrypt_bio()+0xbb: unreachable instruction mm/slub.o: warning: objtool: __ksize()+0x138: unreachable instruction block/blk-merge.o: warning: objtool: __blk_bios_map_sg()+0x1d9: unreachable instruction block/deadline-iosched.o: warning: objtool: deadline_exit_queue()+0x36: unreachable instruction block/partition-generic.o: warning: objtool: read_dev_sector()+0xa6: unreachable instruction fs/configfs/dir.o: warning: objtool: configfs_rmdir()+0x91: unreachable instruction block/blk-core.o: warning: objtool: blk_dequeue_request()+0x3f: unreachable instruction crypto/drbg.o: warning: objtool: drbg_kcapi_sym_ctr()+0x133: unreachable instruction block/bounce.o: warning: objtool: init_emergency_isa_pool()+0x64: unreachable instruction fs/ext4/bitmap.o: warning: objtool: ext4_inode_bitmap_csum_verify()+0xda: unreachable instruction fs/fscache/cache.o: warning: objtool: fscache_add_cache()+0x7e: unreachable instruction fs/fscache/object-list.o: warning: objtool: fscache_objlist_add()+0x57: unreachable instruction fs/fscache/object.o: warning: objtool: fscache_look_up_object()+0x63: unreachable instruction fs/fscache/cookie.o: warning: objtool: fscache_unhash_cookie()+0x97: unreachable instruction fs/fscache/operation.o: warning: objtool: fscache_put_operation()+0x6a: unreachable instruction fs/fscache/page.o: warning: objtool: __fscache_read_or_alloc_page()+0xac: unreachable instruction drivers/android/binder_alloc.o: warning: objtool: binder_insert_free_buffer()+0x36: unreachable instruction fs/f2fs/dir.o: warning: objtool: f2fs_set_link()+0x1a9: unreachable instruction /kisskb/src/block/bfq-iosched.c: In function 'bfq_exit_icq_bfqq': /kisskb/src/block/bfq-iosched.c:4190:11: warning: 'bfqd' may be used uninitialized in this function [-Wuninitialized] block/cfq-iosched.o: warning: objtool: cfq_should_idle()+0x5c: unreachable instruction fs/f2fs/inode.o: warning: objtool: f2fs_inode_chksum()+0x2b8: unreachable instruction /kisskb/src/fs/gfs2/bmap.c: In function 'gfs2_iomap_get': /kisskb/src/fs/gfs2/bmap.c:926:18: warning: 'height' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/gfs2/bmap.c:921:7: warning: 'len' may be used uninitialized in this function [-Wuninitialized] fs/gfs2/dir.o: warning: objtool: dir_make_exhash()+0x95: unreachable instruction fs/f2fs/inline.o: warning: objtool: f2fs_do_read_inline_data()+0x73: unreachable instruction fs/fuse/dir.o: warning: objtool: fuse_set_nowrite()+0x44: unreachable instruction fs/f2fs/gc.o: warning: objtool: is_alive()+0x3f0: unreachable instruction fs/ext4/fsync.o: warning: objtool: ext4_sync_file()+0x9f: unreachable instruction fs/fuse/dev.o: warning: objtool: fuse_check_page()+0x1fa: unreachable instruction fs/f2fs/xattr.o: warning: objtool: read_inline_xattr()+0x1dd: unreachable instruction fs/nilfs2/file.o: warning: objtool: nilfs_page_mkwrite()+0x1e4: unreachable instruction crypto/tcrypt.o: warning: objtool: sg_init_aead()+0x2a8: unreachable instruction fs/f2fs/checkpoint.o: warning: objtool: f2fs_set_meta_page_dirty()+0x105: unreachable instruction fs/jbd2/transaction.o: warning: objtool: jbd2_journal_file_inode()+0xf7: unreachable instruction fs/ext4/indirect.o: warning: objtool: ext4_ind_map_blocks()+0x113: unreachable instruction drivers/bcma/driver_chipcommon_pmu.o: warning: objtool: bcma_pmu_pll_clock()+0x4b: unreachable instruction fs/ext4/extents_status.o: warning: objtool: __es_insert_extent()+0x117: unreachable instruction fs/gfs2/bmap.o: warning: objtool: gfs2_iomap_alloc.isra.16()+0x6b: unreachable instruction drivers/block/brd.o: warning: objtool: brd_insert_page()+0x102: unreachable instruction fs/nilfs2/inode.o: warning: objtool: nilfs_set_page_dirty()+0x81: unreachable instruction fs/ext4/ioctl.o: warning: objtool: reset_inode_seed()+0x148: unreachable instruction fs/f2fs/recovery.o: warning: objtool: check_index_in_prev_nodes()+0x65: unreachable instruction fs/ext4/ialloc.o: warning: objtool: __ext4_new_inode()+0xe82: unreachable instruction fs/ext4/inline.o: warning: objtool: ext4_write_inline_data()+0x80: unreachable instruction fs/jfs/jfs_xtree.o: warning: objtool: xtTruncate()+0x7a: unreachable instruction fs/ext4/extents.o: warning: objtool: ext4_extent_block_csum()+0x55: unreachable instruction fs/ext4/mmp.o: warning: objtool: ext4_mmp_csum()+0x49: unreachable instruction fs/jfs/jfs_imap.o: warning: objtool: diFree()+0x530: 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] fs/ext4/move_extent.o: warning: objtool: mext_page_mkuptodate()+0xc1: unreachable instruction fs/jbd2/recovery.o: warning: objtool: jbd2_descriptor_block_csum_verify()+0xf7: unreachable instruction fs/f2fs/super.o: warning: objtool: sanity_check_raw_super()+0x97: unreachable instruction fs/f2fs/file.o: warning: objtool: fill_zero()+0x11a: unreachable instruction fs/ext4/page-io.o: warning: objtool: ext4_finish_bio()+0xb2: unreachable instruction fs/ext4/readpage.o: warning: objtool: mpage_end_io()+0x9f: unreachable instruction fs/nilfs2/dir.o: warning: objtool: nilfs_get_page()+0xa8: unreachable instruction fs/jfs/jfs_metapage.o: warning: objtool: metapage_releasepage()+0xcd: unreachable instruction drivers/android/binder.o: warning: objtool: binder_pop_transaction_ilocked()+0x33: unreachable instruction fs/gfs2/lops.o: warning: objtool: gfs2_unpin()+0x46: unreachable instruction fs/nilfs2/page.o: warning: objtool: nilfs_copy_page()+0xb4: unreachable instruction fs/jfs/jfs_txnmgr.o: warning: objtool: LogSyncRelease()+0x42: unreachable instruction fs/jfs/jfs_logmgr.o: warning: objtool: lbmIODone()+0x17d: unreachable instruction fs/isofs/rock.o: warning: objtool: rock_ridge_symlink_readpage()+0x247: unreachable instruction lib/scatterlist.o: warning: objtool: sg_init_one()+0x4a: unreachable instruction fs/jbd2/commit.o: warning: objtool: jbd2_block_tag_csum_set()+0x1be: unreachable instruction drivers/block/null_blk_main.o: warning: objtool: null_init_queue()+0x33: unreachable instruction lib/list_debug.o: warning: objtool: __list_add_valid()+0x4b: unreachable instruction fs/f2fs/data.o: warning: objtool: f2fs_release_page()+0x8b: unreachable instruction fs/fuse/file.o: warning: objtool: fuse_readpages_end()+0xbf: unreachable instruction fs/jbd2/checkpoint.o: warning: objtool: __jbd2_journal_insert_checkpoint()+0x46: unreachable instruction fs/nilfs2/mdt.o: warning: objtool: nilfs_mdt_forget_block()+0xe1: unreachable instruction fs/gfs2/glock.o: warning: objtool: __gfs2_glock_put()+0x84: unreachable instruction fs/nilfs2/btnode.o: warning: objtool: nilfs_btnode_create_block()+0x8e: 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] fs/nilfs2/bmap.o: warning: objtool: nilfs_bmap_data_get_key()+0xb0: unreachable instruction fs/f2fs/node.o: warning: objtool: f2fs_set_node_page_dirty()+0x105: unreachable instruction fs/ext4/resize.o: warning: objtool: ext4_alloc_group_tables()+0x5b: unreachable instruction fs/f2fs/segment.o: warning: objtool: __check_sit_bitmap()+0x6f: 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] lib/genalloc.o: warning: objtool: gen_pool_free()+0x8a: unreachable instruction lib/mpi/mpi-pow.o: warning: objtool: mpi_powm()+0x25f: unreachable instruction fs/gfs2/meta_io.o: warning: objtool: gfs2_aspace_writepage()+0xd2: unreachable instruction lib/syscall.o: warning: objtool: collect_syscall()+0x1c8: unreachable instruction fs/ext4/namei.o: warning: objtool: ext4_dirent_csum()+0x52: unreachable instruction lib/assoc_array.o: warning: objtool: assoc_array_destroy_subtree()+0x6e: unreachable instruction fs/sysfs/file.o: warning: objtool: sysfs_kf_seq_show()+0x57: unreachable instruction lib/oid_registry.o: warning: objtool: sprint_OID()+0x34: unreachable instruction fs/gfs2/aops.o: warning: objtool: jdata_set_page_dirty()+0x48: unreachable instruction fs/ext4/xattr.o: warning: objtool: ext4_xattr_block_csum()+0x1ee: unreachable instruction fs/jbd2/revoke.o: warning: objtool: jbd2_journal_init_revoke()+0x37: unreachable instruction lib/plist.o: warning: objtool: plist_requeue()+0x33: unreachable instruction fs/ext4/inode.o: warning: objtool: ext4_da_should_update_i_disksize()+0x4c: unreachable instruction drivers/block/cryptoloop.o: warning: objtool: cryptoloop_transfer()+0x19b: unreachable instruction fs/nilfs2/btree.o: warning: objtool: nilfs_btree_lookup_dirty_buffers()+0xa4: unreachable instruction fs/reiserfs/bitmap.o: warning: objtool: reiserfs_read_bitmap_block()+0x126: unreachable instruction lib/dynamic_debug.o: warning: objtool: __dynamic_pr_debug()+0x55: unreachable instruction fs/proc/task_mmu.o: warning: objtool: pte_to_pagemap_entry.isra.33()+0x241: unreachable instruction arch/x86/kernel/traps.o: warning: objtool: ist_begin_non_atomic()+0x2b: unreachable instruction lib/kobject.o: warning: objtool: create_dir()+0xb3: unreachable instruction fs/ext4/mballoc.o: warning: objtool: mb_find_order_for_block()+0x3f: unreachable instruction lib/radix-tree.o: warning: objtool: radix_tree_insert()+0x3e: unreachable instruction fs/gfs2/ops_fstype.o: warning: objtool: gfs2_read_super()+0xc3: unreachable instruction fs/gfs2/trans.o: warning: objtool: gfs2_trans_begin()+0x48: unreachable instruction fs/gfs2/quota.o: warning: objtool: qd_get()+0x1b6: unreachable instruction fs/udf/file.o: warning: objtool: udf_adinicb_writepage()+0xaf: 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 fs/reiserfs/namei.o: warning: objtool: linear_search_in_dir_item()+0xb7: unreachable instruction fs/jbd2/journal.o: warning: objtool: get_slab()+0x41: unreachable instruction drivers/dma-buf/dma-buf.o: warning: objtool: dma_buf_release()+0x48: unreachable instruction fs/nilfs2/segment.o: warning: objtool: nilfs_transaction_unlock()+0x58: unreachable instruction fs/gfs2/rgrp.o: warning: objtool: gfs2_alloc_extent()+0x43f: unreachable instruction arch/x86/kernel/nmi.o: warning: objtool: do_nmi()+0xcd: unreachable instruction arch/x86/kernel/setup.o: warning: objtool: extend_brk()+0x36: unreachable instruction drivers/char/virtio_console.o: warning: objtool: free_buf()+0x4f: unreachable instruction fs/reiserfs/file.o: warning: objtool: reiserfs_commit_page()+0xe8: unreachable instruction fs/reiserfs/inode.o: warning: objtool: reiserfs_releasepage()+0x72: unreachable instruction fs/proc/array.o: warning: objtool: proc_task_name()+0x59: unreachable instruction fs/pipe.o: warning: objtool: anon_pipe_buf_steal()+0x73: unreachable instruction fs/udf/truncate.o: warning: objtool: udf_truncate_extents()+0x40: unreachable instruction fs/udf/symlink.o: warning: objtool: udf_symlink_filler()+0x143: 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] fs/udf/inode.o: warning: objtool: udf_expand_file_adinicb()+0x1ef: unreachable instruction fs/exec.o: warning: objtool: de_thread()+0x284: unreachable instruction drivers/dma-buf/dma-fence.o: warning: objtool: dma_fence_init()+0x44: unreachable instruction drivers/input/gameport/gameport.o: warning: objtool: gameport_start_polling()+0x57: unreachable instruction fs/proc/page.o: warning: objtool: kpagecount_read()+0x20f: unreachable instruction fs/file.o: warning: objtool: __fd_install()+0xc0: unreachable instruction /kisskb/src/arch/x86/kernel/e820.c: In function 'e820__setup_pci_gap': /kisskb/src/arch/x86/kernel/e820.c:652:2: warning: 'gapstart' may be used uninitialized in this function [-Wuninitialized] fs/seq_file.o: warning: objtool: seq_escape()+0x49: unreachable instruction fs/ext4/super.o: warning: objtool: bdev_try_to_free_page()+0x68: unreachable instruction fs/dcache.o: warning: objtool: __d_rehash()+0x9f: unreachable instruction fs/inode.o: warning: objtool: clear_inode()+0x44: unreachable instruction arch/x86/kernel/e820.o: warning: objtool: e820__reallocate_tables()+0x4d: unreachable instruction arch/x86/kernel/quirks.o: warning: objtool: ich_force_hpet_resume()+0x36: unreachable instruction fs/libfs.o: warning: objtool: simple_write_end()+0xf4: unreachable instruction fs/reiserfs/xattr.o: warning: objtool: delete_one_xattr()+0x63: 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] arch/x86/kernel/alternative.o: warning: objtool: apply_alternatives()+0x74: unreachable instruction fs/reiserfs/stree.o: warning: objtool: unmap_buffers()+0x82: 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] fs/namei.o: warning: objtool: page_get_link()+0xca: unreachable instruction drivers/ide/ide-io.o: warning: objtool: start_request()+0x38: unreachable instruction fs/mpage.o: warning: objtool: clean_buffers()+0x6e: unreachable instruction fs/reiserfs/journal.o: warning: objtool: submit_logged_buffer()+0x2e: unreachable instruction fs/block_dev.o: warning: objtool: blkdev_get()+0x129: unreachable instruction arch/x86/kernel/ftrace.o: warning: objtool: ftrace_modify_code.constprop.8()+0x67: unreachable instruction fs/mbcache.o: warning: objtool: mb_cache_shrink()+0x160: unreachable instruction arch/x86/kernel/machine_kexec_64.o: warning: objtool: arch_kexec_kernel_image_load()+0x3c: unsupported stack register modification fs/userfaultfd.o: warning: objtool: userfaultfd_register()+0x228: unreachable instruction drivers/base/devres.o: warning: objtool: remove_nodes.isra.2()+0x125: unreachable instruction fs/direct-io.o: warning: objtool: do_direct_IO()+0x5cb: unreachable instruction fs/aio.o: warning: objtool: aio_migratepage()+0xe2: unreachable instruction fs/locks.o: warning: objtool: locks_free_lock()+0x3b: unreachable instruction fs/iomap.o: warning: objtool: iomap_set_range_uptodate()+0xe3: unreachable instruction fs/buffer.o: warning: objtool: __clear_page_buffers()+0x3e: unreachable instruction drivers/ide/ide-probe.o: warning: objtool: ide_unregister()+0x35: unreachable instruction drivers/base/regmap/regmap-irq.o: warning: objtool: regmap_irq_thread()+0xce: unreachable instruction drivers/platform/chrome/cros_ec_spi.o: warning: objtool: cros_ec_spi_receive_packet()+0x3c: unreachable instruction drivers/platform/chrome/cros_ec_proto.o: warning: objtool: prepare_packet()+0x35: unreachable instruction drivers/mmc/core/sdio_ops.o: warning: objtool: mmc_io_rw_extended()+0x200: unreachable instruction drivers/platform/chrome/cros_ec_i2c.o: warning: objtool: cros_ec_pkt_xfer_i2c()+0x6b: unreachable instruction drivers/gpu/drm/selftests/test-drm_mm.o: warning: objtool: igt_topdown()+0x349: unreachable instruction drivers/remoteproc/remoteproc_core.o: warning: objtool: rproc_alloc_carveout()+0x62: unreachable instruction drivers/mmc/host/wbsd.o: warning: objtool: wbsd_chip_config()+0x32: unreachable instruction drivers/rpmsg/virtio_rpmsg_bus.o: warning: objtool: rpmsg_sg_init()+0x74: unreachable instruction drivers/virtio/virtio.o: warning: objtool: virtio_dev_probe()+0x82: unreachable instruction drivers/spi/spi.o: warning: objtool: spi_map_buf()+0x164: unreachable instruction /kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'serial_unlink_irq_chain': /kisskb/src/drivers/tty/serial/8250/8250_core.c:247:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] drivers/mmc/host/mtk-sd.o: warning: objtool: msdc_drv_probe()+0x49c: unreachable instruction drivers/tty/serial/8250/8250_core.o: warning: objtool: serial_unlink_irq_chain()+0x64: unreachable instruction drivers/uio/uio_pruss.o: warning: objtool: pruss_probe()+0x169: unreachable instruction drivers/media/common/videobuf2/videobuf2-vmalloc.o: warning: objtool: vb2_vmalloc_dmabuf_ops_map()+0xa5: unreachable instruction drivers/virtio/virtio_ring.o: warning: objtool: detach_buf()+0xc0: unreachable instruction drivers/misc/ad525x_dpot.o: warning: objtool: dpot_write_spi()+0x91: unreachable instruction drivers/target/target_core_sbc.o: warning: objtool: compare_and_write_callback()+0x1a2: unreachable instruction drivers/target/target_core_rd.o: warning: objtool: rd_allocate_sgl_table.isra.7()+0x18d: unreachable instruction drivers/mmc/host/android-goldfish.o: warning: objtool: goldfish_mmc_remove()+0x3e: unreachable instruction drivers/mmc/host/sdhci.o: warning: objtool: sdhci_prepare_data()+0xb5: unreachable instruction drivers/target/target_core_pscsi.o: warning: objtool: pscsi_map_sg()+0x69: unreachable instruction drivers/target/target_core_transport.o: warning: objtool: transport_kmap_data_sg()+0x48: 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/scsi/libsas/sas_expander.o: warning: objtool: sas_ex_discover_expander()+0x11c: unreachable instruction drivers/uwb/est.o: warning: objtool: uwb_est_get_size()+0xa4: unreachable instruction drivers/scsi/scsi_lib_dma.o: warning: objtool: scsi_dma_map()+0x7a: unreachable instruction drivers/gpu/drm/ttm/ttm_tt.o: warning: objtool: ttm_tt_swapin()+0x3c: unreachable instruction fs/xfs/xfs_aops.o: warning: objtool: xfs_writepage_map()+0x26d: unreachable instruction drivers/uwb/lc-dev.o: warning: objtool: uwb_dev_add()+0x39: unreachable instruction drivers/gpu/drm/ttm/ttm_bo.o: warning: objtool: ttm_bo_release_list()+0x3b: unreachable instruction drivers/scsi/st.o: warning: objtool: sgl_unmap_user_pages.isra.8()+0xba: unreachable instruction drivers/video/fbdev/core/fb_defio.o: warning: objtool: fb_deferred_io_set_page_dirty()+0x8b: unreachable instruction drivers/scsi/scsi_debug.o: warning: objtool: prot_verify_write()+0x4b: unreachable instruction drivers/tty/serial/fsl_lpuart.o: warning: objtool: lpuart_resume()+0x1f3: unreachable instruction drivers/video/fbdev/ocfb.o: warning: objtool: ocfb_probe()+0x1c9: unreachable instruction drivers/gpu/drm/drm_crtc_helper.o: warning: objtool: drm_crtc_helper_set_config()+0x4b: unreachable instruction drivers/gpu/drm/drm_global.o: warning: objtool: drm_global_release()+0x3b: unreachable instruction drivers/gpu/drm/drm_scatter.o: warning: objtool: drm_sg_cleanup()+0x68: unreachable instruction drivers/gpu/drm/drm_pci.o: warning: objtool: drm_pci_alloc()+0x96: unreachable instruction drivers/gpu/drm/virtio/virtgpu_vq.o: warning: objtool: virtio_gpu_get_vbuf()+0x62: unreachable instruction /kisskb/src/drivers/gpu/drm/drm_atomic.c: In function 'drm_atomic_connector_check': /kisskb/src/drivers/gpu/drm/drm_atomic.c:412:38: warning: 'crtc_state' may be used uninitialized in this function [-Wuninitialized] drivers/gpu/drm/drm_gem.o: warning: objtool: drm_gem_get_pages()+0x172: unreachable instruction drivers/gpu/drm/drm_mm.o: warning: objtool: drm_mm_remove_node()+0x47: unreachable instruction drivers/gpu/drm/drm_prime.o: warning: objtool: drm_gem_map_dma_buf()+0x14f: unreachable instruction drivers/gpu/drm/drm_vblank.o: warning: objtool: drm_vblank_restore()+0x85: unreachable instruction arch/x86/mm/physaddr.o: warning: objtool: __phys_addr()+0x64: unreachable instruction kernel/params.o: warning: objtool: kernel_add_sysfs_param()+0x69: unreachable instruction arch/x86/kernel/nmi.o: warning: objtool: do_nmi()+0xcd: unreachable instruction arch/x86/mm/init_64.o: warning: objtool: __init_extra_mapping()+0xb2: unreachable instruction arch/x86/kernel/setup.o: warning: objtool: extend_brk()+0x36: unreachable instruction mm/util.o: warning: objtool: page_mapping()+0xc6: unreachable instruction /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:186:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] arch/x86/kernel/cpu/common.o: warning: objtool: cpu_init()+0x24e: unreachable instruction kernel/dma/swiotlb.o: warning: objtool: swiotlb_tbl_map_single()+0x133: unreachable instruction mm/truncate.o: warning: objtool: invalidate_complete_page2()+0xd4: unreachable instruction mm/list_lru.o: warning: objtool: __list_lru_walk_one.isra.12()+0x9f: unreachable instruction mm/page-writeback.o: warning: objtool: set_page_dirty()+0x10c: unreachable instruction mm/debug.o: warning: objtool: __dump_page()+0x161: unreachable instruction mm/percpu.o: warning: objtool: pcpu_setup_first_chunk()+0x87: unreachable instruction kernel/workqueue.o: warning: objtool: workqueue_init_early()+0xd1: unreachable instruction fs/file.o: warning: objtool: __fd_install()+0xc2: unreachable instruction fs/seq_file.o: warning: objtool: seq_escape()+0x49: unreachable instruction crypto/api.o: warning: objtool: __crypto_alloc_tfm()+0x42: unreachable instruction fs/libfs.o: warning: objtool: simple_write_end()+0xf4: unreachable instruction mm/swap.o: warning: objtool: perf_trace_mm_lru_insertion()+0x276: unreachable instruction fs/sysfs/file.o: warning: objtool: sysfs_kf_seq_show()+0x57: unreachable instruction fs/mpage.o: warning: objtool: clean_buffers()+0x6e: unreachable instruction fs/configfs/dir.o: warning: objtool: configfs_rmdir()+0x91: unreachable instruction kernel/signal.o: warning: objtool: task_set_jobctl_pending()+0x37: unreachable instruction fs/exec.o: warning: objtool: de_thread()+0x284: unreachable instruction kernel/module.o: warning: objtool: frob_ro_after_init()+0x33: unreachable instruction fs/block_dev.o: warning: objtool: blkdev_get()+0x129: 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] fs/dcache.o: warning: objtool: __d_rehash()+0x9f: unreachable instruction fs/inode.o: warning: objtool: clear_inode()+0x44: unreachable instruction kernel/trace/trace.o: warning: objtool: __tracing_resize_ring_buffer()+0x75: unreachable instruction mm/shmem.o: warning: objtool: shmem_write_end()+0x18a: unreachable instruction mm/mmap.o: warning: objtool: __vma_adjust()+0x614: unreachable instruction block/bio.o: warning: objtool: bio_split()+0x3f: unreachable instruction mm/debug_page_ref.o: warning: objtool: perf_trace_page_ref_mod_and_test_template()+0x17e: unreachable instruction mm/vmalloc.o: warning: objtool: vb_free()+0x3a: unreachable instruction drivers/dma-buf/dma-fence.o: warning: objtool: dma_fence_init()+0x44: unreachable instruction block/elevator.o: warning: objtool: __elv_add_request()+0x25d: unreachable instruction drivers/dma-buf/dma-buf.o: warning: objtool: dma_buf_vunmap()+0x7a: unreachable instruction mm/page_alloc.o: warning: objtool: free_one_page()+0xe8: unreachable instruction mm/filemap.o: warning: objtool: try_to_release_page()+0xaf: unreachable instruction block/blk-flush.o: warning: objtool: blk_flush_complete_seq()+0x55: unreachable instruction mm/vmscan.o: warning: objtool: page_check_dirty_writeback()+0x17a: unreachable instruction drivers/ide/ide-probe.o: warning: objtool: ide_unregister()+0x35: unreachable instruction drivers/input/gameport/gameport.o: warning: objtool: gameport_start_polling()+0x57: 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] mm/swapfile.o: warning: objtool: inc_cluster_info_page()+0x62: unreachable instruction mm/migrate.o: warning: objtool: remove_migration_pte()+0x72: unreachable instruction fs/direct-io.o: warning: objtool: do_direct_IO()+0x5cb: unreachable instruction mm/memory.o: warning: objtool: __do_fault()+0x191: unreachable instruction crypto/scatterwalk.o: warning: objtool: scatterwalk_ffwd()+0x78: unreachable instruction fs/namei.o: warning: objtool: page_get_link()+0xca: unreachable instruction fs/locks.o: warning: objtool: locks_free_lock()+0x3b: unreachable instruction drivers/base/devres.o: warning: objtool: remove_nodes.isra.2()+0x125: unreachable instruction fs/iomap.o: warning: objtool: iomap_set_range_uptodate()+0xe3: unreachable instruction fs/buffer.o: warning: objtool: block_is_partially_uptodate()+0x79: unreachable instruction crypto/algapi.o: warning: objtool: crypto_unregister_template()+0x4e: unreachable instruction block/blk-merge.o: warning: objtool: __blk_bios_map_sg()+0x1d9: unreachable instruction drivers/misc/ad525x_dpot.o: warning: objtool: dpot_write_spi()+0x91: unreachable instruction mm/slub.o: warning: objtool: __ksize()+0x138: unreachable instruction block/partition-generic.o: warning: objtool: read_dev_sector()+0xa6: unreachable instruction drivers/platform/chrome/cros_ec_proto.o: warning: objtool: prepare_packet()+0x35: unreachable instruction drivers/media/common/videobuf2/videobuf2-vmalloc.o: warning: objtool: vb2_vmalloc_dmabuf_ops_map()+0xa5: unreachable instruction drivers/gpu/drm/ttm/ttm_tt.o: warning: objtool: ttm_tt_swapin()+0x3c: unreachable instruction drivers/mmc/host/sdhci.o: warning: objtool: sdhci_prepare_data()+0xb6: unreachable instruction block/blk-core.o: warning: objtool: blk_dequeue_request()+0x3e: unreachable instruction drivers/virtio/virtio.o: warning: objtool: virtio_dev_probe()+0x82: unreachable instruction lib/scatterlist.o: warning: objtool: sg_init_one()+0x4a: 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/gpu/drm/ttm/ttm_bo.o: warning: objtool: ttm_bo_release_list()+0x3b: unreachable instruction drivers/gpu/drm/drm_gem.o: warning: objtool: drm_gem_get_pages()+0x172: unreachable instruction drivers/virtio/virtio_ring.o: warning: objtool: detach_buf()+0xc0: unreachable instruction lib/list_debug.o: warning: objtool: __list_del_entry_valid()+0x52: unreachable instruction drivers/spi/spi.o: warning: objtool: spi_map_buf()+0x164: unreachable instruction /kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'serial_unlink_irq_chain': /kisskb/src/drivers/tty/serial/8250/8250_core.c:247:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap-irq.o: warning: objtool: regmap_irq_thread()+0xce: unreachable instruction drivers/gpu/drm/drm_global.o: warning: objtool: drm_global_item_unref()+0x51: unreachable instruction drivers/tty/serial/8250/8250_core.o: warning: objtool: serial_unlink_irq_chain()+0x64: unreachable instruction drivers/video/fbdev/core/fb_defio.o: warning: objtool: fb_deferred_io_set_page_dirty()+0x8b: unreachable instruction lib/oid_registry.o: warning: objtool: sprint_OID()+0x34: unreachable instruction drivers/gpu/drm/drm_mm.o: warning: objtool: drm_mm_remove_node()+0x47: unreachable instruction drivers/gpu/drm/drm_prime.o: warning: objtool: drm_gem_map_dma_buf()+0x14f: unreachable instruction lib/kobject.o: warning: objtool: create_dir()+0xb3: unreachable instruction crypto/asymmetric_keys/public_key.o: warning: objtool: public_key_verify_signature()+0x3d: unreachable instruction lib/radix-tree.o: warning: objtool: radix_tree_tag_set()+0x55: unreachable instruction lib/dynamic_debug.o: warning: objtool: __dynamic_dev_dbg()+0x52: unreachable instruction drivers/target/target_core_transport.o: warning: objtool: transport_kmap_data_sg()+0x48: unreachable instruction drivers/gpu/drm/drm_vblank.o: warning: objtool: drm_vblank_restore()+0x85: unreachable instruction arch/x86/tools/insn_decoder_test: success: Decoded and checked 5188469 instructions arch/x86/tools/insn_sanity: Success: decoded and checked 1000000 random instructions with 0 errors (seed:0x7a6d048f) Completed OK # rm -rf /kisskb/build/linus-rand_x86_64-randconfig_x86_64 # Build took: 0:03:25.585285

© Michael Ellerman 2006-2018.