# git rev-parse -q --verify 343a9f35409b68b6de66ecd0db90a277aee90ec2^{commit}
343a9f35409b68b6de66ecd0db90a277aee90ec2
already have revision, skipping fetch
# git checkout -q -f -B kisskb 343a9f35409b68b6de66ecd0db90a277aee90ec2
# git clean -qxdf
# < git log -1
# commit 343a9f35409b68b6de66ecd0db90a277aee90ec2
# Merge: f4267b3604a8 a2acce536921
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Tue Oct 30 09:49:56 2018 -0700
# 
#     Merge tag 'trace-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
#     
#     Pull tracing updates from Steven Rostedt:
#      "The biggest change here is the updates to kprobes
#     
#       Back in January I posted patches to create function based events.
#       These were the events that you suggested I make to allow developers to
#       easily create events in code where no trace event exists. After
#       posting those changes for review, it was suggested that we implement
#       this instead with kprobes.
#     
#       The problem with kprobes is that the interface is too complex and
#       needs to be simplified. Masami Hiramatsu posted patches in March and
#       I've been playing with them a bit. There's been a bit of clean up in
#       the kprobe code that was inspired by the function based event patches,
#       and a couple of enhancements to the kprobe event interface.
#     
#        - If the arch supports it (we added support for x86), you can place a
#          kprobe event at the start of a function and use $arg1, $arg2, etc
#          to reference the arguments of a function. (Before you needed to
#          know what register or where on the stack the argument was).
#     
#        - The second is a way to see array of events. For example, if you
#          reference a mac address, you can add:
#     
#             echo 'p:mac ip_rcv perm_addr=+574($arg2):x8[6]' > kprobe_events
#     
#          And this will produce:
#     
#             mac: (ip_rcv+0x0/0x140) perm_addr={0x52,0x54,0x0,0xc0,0x76,0xec}
#     
#       Other changes include
#     
#        - Exporting trace_dump_stack to modules
#     
#        - Have the stack tracer trace the entire stack (stop trying to remove
#          tracing itself, as we keep removing too much).
#     
#        - Added support for SDT in uprobes"
#     
#     [ SDT - "Statically Defined Tracing" are userspace markers for tracing.
#       Let's not use random TLA's in explanations unless they are fairly
#       well-established as generic (at least for kernel people) - Linus ]
#     
#     * tag 'trace-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (24 commits)
#       tracing: Have stack tracer trace full stack
#       tracing: Export trace_dump_stack to modules
#       tracing: probeevent: Fix uninitialized used of offset in parse args
#       tracing/kprobes: Allow kprobe-events to record module symbol
#       tracing/kprobes: Check the probe on unloaded module correctly
#       tracing/uprobes: Fix to return -EFAULT if copy_from_user failed
#       tracing: probeevent: Add $argN for accessing function args
#       x86: ptrace: Add function argument access API
#       tracing: probeevent: Add array type support
#       tracing: probeevent: Add symbol type
#       tracing: probeevent: Unify fetch_insn processing common part
#       tracing: probeevent: Append traceprobe_ for exported function
#       tracing: probeevent: Return consumed bytes of dynamic area
#       tracing: probeevent: Unify fetch type tables
#       tracing: probeevent: Introduce new argument fetching code
#       tracing: probeevent: Remove NOKPROBE_SYMBOL from print functions
#       tracing: probeevent: Cleanup argument field definition
#       tracing: probeevent: Cleanup print argument functions
#       trace_uprobe: support reference counter in fd-based uprobe
#       perf probe: Support SDT markers having reference counter (semaphore)
#       ...
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-gcc --version
# < git log --format=%s --max-count=1 343a9f35409b68b6de66ecd0db90a277aee90ec2
# < make -s -j 48 ARCH=i386 O=/kisskb/build/linus_i386-allmodconfig_i386 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-  allmodconfig
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# Added to kconfig CONFIG_SAMPLES=n
# yes \n | make -s -j 48 ARCH=i386 O=/kisskb/build/linus_i386-allmodconfig_i386 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-  oldconfig
yes: standard output: Broken pipe
# make -s -j 48 ARCH=i386 O=/kisskb/build/linus_i386-allmodconfig_i386 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-  
/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]
/kisskb/src/fs/afs/dynroot.c: In function 'afs_lookup_atcell':
/kisskb/src/fs/afs/dynroot.c:126:6: warning: 'len' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount':
/kisskb/src/kernel/cgroup/cgroup-v1.c:1256:20: warning: 'root' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/sound/hda/hdac_regmap.c: In function 'hda_reg_write':
/kisskb/src/sound/hda/hdac_regmap.c:282:16: warning: 'err' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read':
/kisskb/src/drivers/base/regmap/regmap.c:2594:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/base/regmap/regmap.c: In function '_regmap_raw_write':
/kisskb/src/drivers/base/regmap/regmap.c:1855:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:187:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page':
/kisskb/src/mm/hugetlb.c:1433:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/sched/psi.c: In function 'cgroup_move_task':
/kisskb/src/kernel/sched/sched.h:1063:8: warning: 'rq' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/sched/psi.c:639:13: note: 'rq' was declared here
/kisskb/src/fs/btrfs/ref-verify.c: In function 'process_extent_item.isra.2':
/kisskb/src/fs/btrfs/ref-verify.c:503:2: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/btrfs/ref-verify.c: In function 'process_leaf.isra.3':
/kisskb/src/fs/btrfs/ref-verify.c:555:2: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/f2fs/file.c: In function 'f2fs_precache_extents':
/kisskb/src/fs/f2fs/file.c:2926:6: warning: 'err' may be used uninitialized in this function [-Wuninitialized]
/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]
/kisskb/src/lib/raid6/recov_avx512.c:387:2: warning: #warning "your version of binutils lacks AVX512 support" [-Wcpp]
/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]
/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:565:6: warning: 'len' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/gfs2/bmap.c:817:6: note: 'len' was declared here
/kisskb/src/fs/f2fs/node.c: In function '__set_nat_cache_dirty':
/kisskb/src/include/linux/list.h:93:12: warning: 'head' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/f2fs/node.c:237:24: note: 'head' was declared here
/kisskb/src/sound/soc/codecs/arizona.c: In function 'arizona_hw_params':
/kisskb/src/sound/soc/codecs/arizona.c:1893:3: warning: 'aif_rx_state' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/sound/soc/codecs/arizona.c:1890:3: warning: 'aif_tx_state' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/bridge/br_netlink.c: In function 'br_process_vlan_info':
/kisskb/src/net/bridge/br_netlink.c:589:10: warning: 'err' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/sound/soc/codecs/da7219-aad.c: In function 'da7219_aad_hptest_work':
/kisskb/src/sound/soc/codecs/da7219-aad.c:321:17: warning: 'pll_ctrl' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/clk/sunxi-ng/ccu_mux.c: In function 'ccu_mux_helper_determine_rate':
/kisskb/src/drivers/clk/sunxi-ng/ccu_mux.c:153:22: warning: 'best_parent' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/dma-buf/reservation.c: In function 'reservation_object_add_shared_replace':
/kisskb/src/drivers/dma-buf/reservation.c:208:2: warning: 'k' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/dma-buf/reservation.c:211:7: warning: 'i' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/nfsd/nfs4xdr.c: In function 'nfsd4_encode_components_esc':
/kisskb/src/fs/nfsd/nfs4xdr.c:2069:9: warning: 'str' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/nfsd/nfs4xdr.c:2074:11: warning: 'end' may be used uninitialized in this function [-Wuninitialized]
/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
/kisskb/src/sound/soc/codecs/rt5665.c: In function 'rt5665_i2s_pin_event':
/kisskb/src/sound/soc/codecs/rt5665.c:2666:33: warning: 'val2' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/sound/soc/codecs/rt5665.c:2663:33: warning: 'val1' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/mac80211/mlme.c: In function 'ieee80211_handle_pwr_constr.isra.16':
/kisskb/src/net/mac80211/mlme.c:1513:3: warning: 'pwr_level_cisco' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c: In function 'amdgpu_set_pp_od_clk_voltage':
/kisskb/src/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c:591:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/mac80211/mesh_pathtbl.c: In function 'mesh_path_add':
/kisskb/src/net/mac80211/mesh_pathtbl.c:417:28: warning: 'new_mpath' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/ncsi/ncsi-manage.c: In function 'set_one_vid':
/kisskb/src/net/ncsi/ncsi-manage.c:641:19: warning: 'vid' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c: In function 'gmc_v8_0_process_interrupt':
/kisskb/src/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c:1452:10: warning: missing braces around initializer [-Wmissing-braces]
/kisskb/src/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c:1452:10: warning: (near initialization for 'task_info.process_name') [-Wmissing-braces]
/kisskb/src/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c: In function 'gmc_v9_0_process_interrupt':
/kisskb/src/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c:264:10: warning: missing braces around initializer [-Wmissing-braces]
/kisskb/src/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c:264:10: warning: (near initialization for 'task_info.process_name') [-Wmissing-braces]
/kisskb/src/drivers/iommu/io-pgtable-arm-v7s.c: In function '__arm_v7s_map':
/kisskb/src/drivers/iommu/io-pgtable-arm-v7s.c:473:2: warning: 'cptep' may be used uninitialized in this function [-Wuninitialized]
/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]
/kisskb/src/drivers/infiniband/hw/cxgb4/device.c: In function 'wr_log_show':
/kisskb/src/drivers/infiniband/hw/cxgb4/device.c:152:14: warning: 'prev_time' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/lightnvm/core.c: In function 'nvm_get_bb_meta':
/kisskb/src/drivers/lightnvm/core.c:977:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/vmw_vsock/hyperv_transport.c: In function 'hvs_open_connection':
/kisskb/src/net/vmw_vsock/hyperv_transport.c:399:24: warning: 'hvs_new' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/vmw_vsock/hyperv_transport.c:383:14: warning: 'hvs' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/vmw_vsock/hyperv_transport.c:202:20: warning: 'vnew' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/vmw_vsock/hyperv_transport.c:331:21: note: 'vnew' was declared here
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dce_calcs.c: In function 'calculate_bandwidth':
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dce_calcs.c:2021:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=]
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dce_calcs.c: In function 'bw_calcs_init':
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dce_calcs.c:2731:1: warning: the frame size of 1044 bytes is larger than 1024 bytes [-Wframe-larger-than=]
/kisskb/src/drivers/nvme/host/lightnvm.c: In function 'nvme_nvm_get_chk_meta':
/kisskb/src/drivers/nvme/host/lightnvm.c:580:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/pinctrl/intel/pinctrl-cherryview.c: In function 'chv_gpio_probe':
/kisskb/src/drivers/pinctrl/intel/pinctrl-cherryview.c:1627:29: warning: 'irq_base' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c: In function 'dcn10_log_hubbub_state':
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:94:9: warning: missing braces around initializer [-Wmissing-braces]
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:94:9: warning: (near initialization for 'wm.sets') [-Wmissing-braces]
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer_debug.c: In function 'dcn10_get_hubbub_state':
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer_debug.c:74:9: warning: missing braces around initializer [-Wmissing-braces]
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer_debug.c:74:9: warning: (near initialization for 'wm.sets') [-Wmissing-braces]
/kisskb/src/drivers/media/usb/dvb-usb/pctv452e.c: In function 'pctv452e_frontend_attach':
/kisskb/src/drivers/media/usb/dvb-usb/pctv452e.c:922:2: warning: value computed is not used [-Wunused-value]
/kisskb/src/drivers/net/wireless/broadcom/b43/phy_n.c: In function 'b43_nphy_rf_ctl_override_rev7':
/kisskb/src/drivers/net/wireless/broadcom/b43/phy_n.c:202:21: warning: 'val_addr' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/soc/qcom/rpmh.c: In function 'rpmh_write_batch':
/kisskb/src/drivers/soc/qcom/rpmh.c:355:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/wireless/quantenna/qtnfmac/commands.c: In function 'qtnf_cmd_send_with_reply':
/kisskb/src/drivers/net/wireless/quantenna/qtnfmac/commands.c:132:11: warning: 'resp' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c: In function 'rtl8723a_phy_lc_calibrate':
/kisskb/src/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c:3481:23: warning: 'rf_amode' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c: In function 'hclgevf_bind_ring_to_vector':
/kisskb/src/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c:839:16: warning: 'type' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/video/fbdev/intelfb/intelfbhw.c: In function 'calc_pll_params':
/kisskb/src/drivers/video/fbdev/intelfb/intelfbhw.c:1012:2: warning: 'm2' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/video/fbdev/intelfb/intelfbhw.c:1012:2: warning: 'm1' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c: In function 'update_root_ft_create':
/kisskb/src/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c:835:5: warning: 'err' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c: In function 'tun_get_user':
/kisskb/src/drivers/net/tun.c:1819:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c:1513:34: warning: 'linear' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c:1729:46: note: 'linear' was declared here
/kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c: In function 'gk104_top_oneinit':
/kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c:102:1: warning: 'inst' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c:102:1: warning: 'type' may be used uninitialized in this function [-Wuninitialized]
/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_i386-allmodconfig_i386
# Build took: 0:14:13.463873