[RFC PATCH 00/30] softirq: Make softirqs soft-interruptible (+ per vector disablement)

From: Frederic Weisbecker
Date: Wed Oct 10 2018 - 19:15:38 EST

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There have been complaints around the fact that some softirq vectors
consume a lot of CPU at the expense of other's latency. A few solutions
have been proposed, mostly working around a fundamental design of softirqs
in Linux: a vector can not interrupt another while softirq are executing.

Also disabling the softirqs is an all-in-one toggle. It is not possible
to simply disable one vector. Therefore a section of code, that wants not
to be interrupted by a vector, must disable and delay all of them, even
though they are unrelated to the current critical code. That in turn
may induce latencies on workloads that rely on deterministic ends.

Following suggestions from the -rt team, this patchset propose to solve
this with finegrained per softirq vector disablement.

Functions such as local_bh_disable() or spin_lock_bh() now must be
passed a mask of vectors to disable. The functions return the mask of
the vectors enabled state prior to the call, that backup state is then
passed to local_bh_enable()/spin_unlock_bh() to be restored. Ie: it
follows the same logic as local_irq_save/restore():

// Start with local_bh_disabled() == SOFTIRQ_ALL_MASK
...
bh = local_bh_disable(BIT(NET_RX_SOFTIRQ)) {
bh = local_bh_disabled();
local_bh_disabled() &= ~BIT(NET_RX_SOFTIRQ);
// First vector disabled, inc preempt count
preempt_count += SOFTIRQ_DISABLE_OFFSET;
return bh;
}
....
bh2 = local_bh_disable(BIT(BLOCK_SOFTIRQ)) {
bh2 = local_bh_disabled();
local_bh_disabled() &= ~BIT(NET_RX_SOFTIRQ);
// No need to inc preempt count
return bh2;
}
...
local_bh_enable(bh2) {
local_bh_disabled() = bh2;
// No need to dec preempt count
}
...
local_bh_enable(bh1) {
local_bh_disabled() = bh;
preempt_count -= SOFTIRQ_DISABLE_OFFSET;
}

Similarly, the softirq processing is now re-entrant: a vector can
interrupt another, but a vector of course can not interrupt itself.

Although the diffstat is huge, some of the patches have been truncated
to fit in lkml. And I haven't yet converted every call sites, there are
still a few of them that I need to flip. At least it's enough
for my config to boot and be happy. Also I may need to teach lockdep
about the new situation.

Other than that, it works pretty well on my box, softirqs nest like a
charm (except for NET_RX and TASKLET as you may find out in the last
patch):

<idle>-0 [000] ..s2 119.907085: __do_softirq: run_rebalance_domains
<idle>-0 [000] ..s2 119.907090: <stack trace>
=> __do_softirq
=> irq_exit
=> scheduler_ipi
=> smp_reschedule_interrupt
=> reschedule_interrupt
=> _raw_spin_unlock_irq
=> run_timer_softirq
=> __do_softirq
=> irq_exit
=> smp_apic_timer_interrupt
=> apic_timer_interrupt
=> cpuidle_enter_state
=> cpuidle_enter
=> call_cpuidle
=> do_idle

So that's enough to start a debate.

git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
irq/softirq-experimental

HEAD: 84e064f678eb06d0da3e97f04eced4cfb55866ba

Thanks,
Frederic
---

Frederic Weisbecker (30):
x86: Revert "x86/irq: Demote irq_cpustat_t::__softirq_pending to u16"
arch/softirq: Rename softirq_pending fields to softirq_data
softirq: Implement local_softirq_pending() below softirq vector definition
softirq: Normalize softirq_pending naming scheme
softirq: Convert softirq_pending_set() to softirq_pending_nand()
softirq: Introduce disabled softirq vectors bits
softirq: Rename _local_bh_enable() to local_bh_enable_no_softirq()
softirq: Move vectors bits to bottom_half.h
x86: Init softirq enabled field
softirq: Check enabled bits on the softirq loop
net: Prepare netif_tx_lock_bh/netif_tx_unlock_bh() for handling softirq mask
rcu: Prepare rcu_read_[un]lock_bh() for handling softirq mask
net: Prepare tcp_get_md5sig_pool() for handling softirq mask
softirq: Introduce local_bh_disable_all()
net: Prepare [un]lock_sock_fast() for handling softirq mask
net: Prepare nf_log_buf_open() for handling softirq mask
isdn: Prepare isdn_net_get_locked_lp() for handling softirq mask
softirq: Prepare local_bh_disable() for handling softirq mask
diva: Prepare diva_os_enter_spin_lock() for handling softirq mask
tg3: Prepare tg3_full_[un]lock() for handling softirq mask
locking: Prepare spin_lock_bh() for handling softirq mask
seqlock: Prepare write_seq[un]lock_bh() for handling softirq mask
rwlock: Prepare write_[un]lock_bh() for handling softirq mask
softirq: Introduce Local_bh_enter/exit()
softirq: Push down softirq mask to __local_bh_disable_ip()
softirq: Increment the softirq offset on top of enabled bits
softirq: Swap softirq serving VS disable on preempt mask layout
softirq: Disable vector on execution
softirq: Make softirq processing softinterruptible
softirq: Tasklet/net-rx fixup

arch/arm/include/asm/hardirq.h | 2 +-
arch/arm64/include/asm/hardirq.h | 2 +-
arch/arm64/kernel/fpsimd.c | 37 +--
arch/h8300/kernel/asm-offsets.c | 2 +-
arch/ia64/include/asm/hardirq.h | 2 +-
arch/ia64/include/asm/processor.h | 2 +-
arch/m68k/include/asm/hardirq.h | 2 +-
arch/m68k/kernel/asm-offsets.c | 2 +-
arch/parisc/include/asm/hardirq.h | 2 +-
arch/powerpc/include/asm/hardirq.h | 2 +-
arch/s390/include/asm/hardirq.h | 11 +-
arch/s390/lib/delay.c | 5 +-
arch/s390/mm/pgalloc.c | 24 +-
arch/sh/include/asm/hardirq.h | 2 +-
arch/sparc/include/asm/cpudata_64.h | 2 +-
arch/sparc/include/asm/hardirq_64.h | 4 +-
arch/um/include/asm/hardirq.h | 2 +-
arch/x86/crypto/sha1-mb/sha1_mb.c | 9 +-
arch/x86/crypto/sha256-mb/sha256_mb.c | 9 +-
arch/x86/crypto/sha512-mb/sha512_mb.c | 9 +-
arch/x86/include/asm/hardirq.h | 2 +-
arch/x86/kernel/irq.c | 5 +-
arch/xtensa/platforms/iss/console.c | 10 +-
arch/xtensa/platforms/iss/network.c | 28 +-
block/genhd.c | 15 +-
crypto/ansi_cprng.c | 10 +-
crypto/cryptd.c | 25 +-
crypto/mcryptd.c | 30 ++-
crypto/pcrypt.c | 5 +-
drivers/block/drbd/drbd_receiver.c | 10 +-
drivers/block/rsxx/core.c | 5 +-
drivers/block/rsxx/cregs.c | 34 ++-
drivers/block/rsxx/dma.c | 36 +--
drivers/block/umem.c | 10 +-
drivers/connector/cn_queue.c | 15 +-
drivers/connector/connector.c | 15 +-
drivers/crypto/atmel-aes.c | 5 +-
drivers/crypto/atmel-sha.c | 5 +-
drivers/crypto/atmel-tdes.c | 5 +-
drivers/crypto/axis/artpec6_crypto.c | 10 +-
drivers/crypto/caam/jr.c | 7 +-
drivers/crypto/cavium/cpt/cptvf_reqmanager.c | 22 +-
drivers/crypto/cavium/nitrox/nitrox_reqmgr.c | 25 +-
drivers/crypto/ccree/cc_request_mgr.c | 31 ++-
drivers/crypto/chelsio/chcr_algo.c | 5 +-
drivers/crypto/chelsio/chtls/chtls_cm.c | 36 ++-
drivers/crypto/chelsio/chtls/chtls_hw.c | 10 +-
drivers/crypto/chelsio/chtls/chtls_main.c | 9 +-
drivers/crypto/inside-secure/safexcel.c | 19 +-
drivers/crypto/inside-secure/safexcel_cipher.c | 15 +-
drivers/crypto/inside-secure/safexcel_hash.c | 15 +-
drivers/crypto/marvell/cesa.c | 20 +-
drivers/crypto/marvell/tdma.c | 13 +-
drivers/crypto/mediatek/mtk-aes.c | 5 +-
drivers/crypto/mediatek/mtk-sha.c | 5 +-
drivers/crypto/mxc-scc.c | 10 +-
drivers/crypto/nx/nx-842.c | 10 +-
drivers/crypto/omap-aes.c | 15 +-
drivers/crypto/omap-des.c | 5 +-
drivers/crypto/omap-sham.c | 10 +-
drivers/crypto/qat/qat_common/adf_transport.c | 15 +-
drivers/crypto/qce/core.c | 5 +-
drivers/crypto/stm32/stm32-cryp.c | 5 +-
drivers/crypto/stm32/stm32-hash.c | 5 +-
drivers/crypto/stm32/stm32_crc32.c | 5 +-
drivers/crypto/sunxi-ss/sun4i-ss-hash.c | 5 +-
drivers/crypto/sunxi-ss/sun4i-ss-prng.c | 5 +-
drivers/dma/at_xdmac.c | 5 +-
drivers/dma/dmaengine.c | 5 +-
drivers/dma/fsldma.c | 44 ++--
drivers/dma/ioat/dma.c | 59 +++--
drivers/dma/ioat/dma.h | 1 +
drivers/dma/ioat/init.c | 28 +-
drivers/dma/iop-adma.c | 60 +++--
drivers/dma/mv_xor.c | 32 ++-
drivers/dma/mv_xor_v2.c | 24 +-
drivers/dma/ppc4xx/adma.c | 74 +++---
drivers/dma/timb_dma.c | 35 ++-
drivers/dma/txx9dmac.c | 50 ++--
drivers/dma/xgene-dma.c | 20 +-
drivers/dma/xilinx/zynqmp_dma.c | 32 ++-
drivers/gpu/drm/drm_lock.c | 35 +--
drivers/gpu/drm/i915/gvt/debugfs.c | 5 +-
drivers/gpu/drm/i915/gvt/sched_policy.c | 5 +-
drivers/gpu/drm/i915/i915_gem.c | 5 +-
drivers/gpu/drm/i915/i915_request.c | 5 +-
drivers/gpu/drm/i915/intel_breadcrumbs.c | 5 +-
drivers/gpu/drm/i915/intel_engine_cs.c | 5 +-
drivers/gpu/drm/msm/adreno/a6xx_hfi.c | 9 +-
drivers/gpu/drm/vmwgfx/vmwgfx_irq.c | 10 +-
drivers/hsi/clients/cmt_speech.c | 76 +++---
drivers/hsi/clients/ssi_protocol.c | 135 +++++-----
drivers/hsi/controllers/omap_ssi_port.c | 60 +++--
drivers/infiniband/core/addr.c | 29 ++-
drivers/infiniband/core/roce_gid_mgmt.c | 5 +-
drivers/infiniband/hw/bnxt_re/qplib_fp.c | 10 +-
drivers/infiniband/hw/cxgb4/cm.c | 5 +-
drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 7 +-
drivers/infiniband/hw/mlx4/main.c | 35 ++-
drivers/infiniband/sw/rdmavt/cq.c | 5 +-
drivers/infiniband/sw/rxe/rxe_mcast.c | 33 +--
drivers/infiniband/sw/rxe/rxe_mmap.c | 19 +-
drivers/infiniband/sw/rxe/rxe_net.c | 24 +-
drivers/infiniband/sw/rxe/rxe_queue.c | 5 +-
drivers/infiniband/sw/rxe/rxe_recv.c | 15 +-
drivers/infiniband/sw/rxe/rxe_resp.c | 14 +-
drivers/infiniband/ulp/ipoib/ipoib_cm.c | 42 +--
drivers/infiniband/ulp/ipoib/ipoib_ib.c | 10 +-
drivers/infiniband/ulp/ipoib/ipoib_main.c | 14 +-
drivers/infiniband/ulp/ipoib/ipoib_multicast.c | 19 +-
drivers/infiniband/ulp/isert/ib_isert.c | 52 ++--
drivers/isdn/capi/capi.c | 46 ++--
drivers/isdn/hardware/eicon/capifunc.c | 53 ++--
drivers/isdn/hardware/eicon/dadapter.c | 39 ++-
drivers/isdn/hardware/eicon/debug.c | 129 ++++++----
drivers/isdn/hardware/eicon/debug_if.h | 6 +-
drivers/isdn/hardware/eicon/diva.c | 45 ++--
drivers/isdn/hardware/eicon/idifunc.c | 22 +-
drivers/isdn/hardware/eicon/io.c | 88 ++++---
drivers/isdn/hardware/eicon/mntfunc.c | 13 +-
drivers/isdn/hardware/eicon/platform.h | 9 +-
drivers/isdn/hardware/eicon/um_idi.c | 104 +++++---
drivers/isdn/i4l/isdn_concap.c | 5 +-
drivers/isdn/i4l/isdn_net.c | 16 +-
drivers/isdn/i4l/isdn_net.h | 5 +-
drivers/isdn/i4l/isdn_ppp.c | 6 +-
drivers/isdn/mISDN/socket.c | 17 +-
drivers/isdn/mISDN/stack.c | 10 +-
drivers/leds/trigger/ledtrig-netdev.c | 15 +-
drivers/media/pci/ttpci/av7110_av.c | 10 +-
drivers/misc/sgi-xp/xpnet.c | 9 +-
drivers/misc/vmw_vmci/vmci_doorbell.c | 15 +-
drivers/mmc/host/atmel-mci.c | 24 +-
drivers/mmc/host/dw_mmc.c | 15 +-
drivers/mmc/host/wbsd.c | 22 +-
drivers/net/appletalk/ipddp.c | 19 +-
drivers/net/bonding/bond_3ad.c | 30 ++-
drivers/net/bonding/bond_alb.c | 60 +++--
drivers/net/bonding/bond_debugfs.c | 5 +-
drivers/net/caif/caif_hsi.c | 51 ++--
drivers/net/can/slcan.c | 24 +-
drivers/net/can/softing/softing_main.c | 15 +-
drivers/net/eql.c | 25 +-
drivers/net/ethernet/3com/3c59x.c | 10 +-
drivers/net/ethernet/alacritech/slicoss.c | 30 ++-
drivers/net/ethernet/altera/altera_tse_main.c | 5 +-
drivers/net/ethernet/aurora/nb8800.c | 5 +-
drivers/net/ethernet/broadcom/bcm63xx_enet.c | 10 +-
drivers/net/ethernet/broadcom/bnx2.c | 107 ++++----
.../net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c | 5 +-
drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 29 ++-
drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c | 39 +--
drivers/net/ethernet/broadcom/bnxt/bnxt.c | 12 +-
drivers/net/ethernet/broadcom/cnic.c | 12 +-
drivers/net/ethernet/broadcom/genet/bcmgenet.c | 5 +-
drivers/net/ethernet/broadcom/tg3.c | 221 +++++++++-------
drivers/net/ethernet/calxeda/xgmac.c | 5 +-
drivers/net/ethernet/cavium/liquidio/lio_main.c | 10 +-
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c | 10 +-
.../net/ethernet/cavium/liquidio/octeon_device.c | 32 ++-
drivers/net/ethernet/cavium/liquidio/octeon_droq.c | 12 +-
drivers/net/ethernet/cavium/liquidio/octeon_nic.c | 11 +-
.../net/ethernet/cavium/liquidio/request_manager.c | 22 +-
.../ethernet/cavium/liquidio/response_manager.c | 11 +-
drivers/net/ethernet/cavium/thunder/nicvf_main.c | 5 +-
drivers/net/ethernet/chelsio/cxgb/vsc7326.c | 10 +-
drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c | 5 +-
drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c | 56 ++--
drivers/net/ethernet/chelsio/cxgb3/l2t.c | 39 +--
drivers/net/ethernet/chelsio/cxgb3/sge.c | 5 +-
drivers/net/ethernet/chelsio/cxgb4/clip_tbl.c | 42 +--
drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c | 17 +-
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 42 +--
.../net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c | 5 +-
drivers/net/ethernet/chelsio/cxgb4/l2t.c | 40 +--
drivers/net/ethernet/chelsio/cxgb4/sge.c | 32 ++-
drivers/net/ethernet/chelsio/cxgb4/smt.c | 10 +-
drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 15 +-
drivers/net/ethernet/chelsio/libcxgb/libcxgb_ppm.c | 23 +-
drivers/net/ethernet/cisco/enic/enic_api.c | 5 +-
drivers/net/ethernet/cisco/enic/enic_clsf.c | 25 +-
drivers/net/ethernet/cisco/enic/enic_dev.c | 75 +++---
drivers/net/ethernet/cisco/enic/enic_dev.h | 2 +-
drivers/net/ethernet/cisco/enic/enic_ethtool.c | 18 +-
drivers/net/ethernet/cisco/enic/enic_main.c | 35 ++-
drivers/net/ethernet/emulex/benet/be_cmds.c | 15 +-
drivers/net/ethernet/emulex/benet/be_main.c | 5 +-
drivers/net/ethernet/freescale/fec_main.c | 34 ++-
drivers/net/ethernet/freescale/gianfar.c | 5 +-
drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c | 30 ++-
.../net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c | 7 +-
.../ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c | 7 +-
drivers/net/ethernet/huawei/hinic/hinic_hw_cmdq.c | 9 +-
drivers/net/ethernet/ibm/emac/core.c | 15 +-
drivers/net/ethernet/intel/i40e/i40e_main.c | 49 ++--
drivers/net/ethernet/intel/i40e/i40e_ptp.c | 17 +-
drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 38 +--
drivers/net/ethernet/intel/i40evf/i40evf_main.c | 68 +++--
.../net/ethernet/intel/i40evf/i40evf_virtchnl.c | 36 +--
drivers/net/ethernet/intel/igbvf/ethtool.c | 5 +-
drivers/net/ethernet/intel/igbvf/netdev.c | 51 ++--
drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c | 10 +-
drivers/net/ethernet/intel/ixgbevf/ethtool.c | 5 +-
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 55 ++--
drivers/net/ethernet/jme.c | 52 ++--
drivers/net/ethernet/marvell/mv643xx_eth.c | 10 +-
drivers/net/ethernet/marvell/skge.c | 34 ++-
drivers/net/ethernet/marvell/sky2.c | 34 ++-
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 10 +-
drivers/net/ethernet/mellanox/mlx4/en_ethtool.c | 5 +-
drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 35 ++-
drivers/net/ethernet/mellanox/mlx4/en_port.c | 5 +-
drivers/net/ethernet/mellanox/mlx4/en_rx.c | 5 +-
drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c | 24 +-
drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 5 +-
drivers/net/ethernet/mellanox/mlx5/core/en_rep.c | 21 +-
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 10 +-
.../ethernet/mellanox/mlx5/core/ipoib/ipoib_vlan.c | 10 +-
.../net/ethernet/mellanox/mlx5/core/lib/vxlan.c | 15 +-
drivers/net/ethernet/mellanox/mlxsw/core.c | 12 +-
drivers/net/ethernet/mellanox/mlxsw/pci.c | 5 +-
.../net/ethernet/mellanox/mlxsw/spectrum_router.c | 10 +-
.../net/ethernet/mellanox/mlxsw/spectrum_span.c | 5 +-
drivers/net/ethernet/microchip/lan743x_ptp.c | 30 ++-
drivers/net/ethernet/netronome/nfp/flower/cmsg.c | 14 +-
drivers/net/ethernet/netronome/nfp/flower/main.c | 14 +-
.../net/ethernet/netronome/nfp/flower/offload.c | 5 +-
.../ethernet/netronome/nfp/flower/tunnel_conf.c | 21 +-
drivers/net/ethernet/netronome/nfp/nfp_net.h | 2 +-
.../net/ethernet/netronome/nfp/nfp_net_common.c | 35 ++-
drivers/net/ethernet/nvidia/forcedeth.c | 50 ++--
drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c | 7 +-
.../net/ethernet/qlogic/netxen/netxen_nic_init.c | 5 +-
drivers/net/ethernet/qlogic/qed/qed_dev.c | 7 +-
drivers/net/ethernet/qlogic/qed/qed_fcoe.c | 19 +-
drivers/net/ethernet/qlogic/qed/qed_hw.c | 12 +-
drivers/net/ethernet/qlogic/qed/qed_iscsi.c | 19 +-
drivers/net/ethernet/qlogic/qed/qed_iwarp.c | 91 ++++---
drivers/net/ethernet/qlogic/qed/qed_ll2.c | 10 +-
drivers/net/ethernet/qlogic/qed/qed_mcp.c | 26 +-
drivers/net/ethernet/qlogic/qed/qed_rdma.c | 64 +++--
drivers/net/ethernet/qlogic/qed/qed_roce.c | 16 +-
drivers/net/ethernet/qlogic/qed/qed_spq.c | 26 +-
drivers/net/ethernet/qlogic/qede/qede_filter.c | 25 +-
drivers/net/ethernet/qlogic/qede/qede_ptp.c | 42 +--
.../net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c | 22 +-
drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c | 22 +-
.../ethernet/qlogic/qlcnic/qlcnic_sriov_common.c | 20 +-
.../net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c | 5 +-
drivers/net/ethernet/qualcomm/qca_spi.c | 10 +-
drivers/net/ethernet/qualcomm/qca_uart.c | 14 +-
drivers/net/ethernet/realtek/8139too.c | 5 +-
drivers/net/ethernet/sfc/ef10.c | 15 +-
drivers/net/ethernet/sfc/efx.c | 15 +-
drivers/net/ethernet/sfc/ethtool.c | 5 +-
drivers/net/ethernet/sfc/falcon/efx.c | 15 +-
drivers/net/ethernet/sfc/falcon/ethtool.c | 5 +-
drivers/net/ethernet/sfc/falcon/falcon.c | 9 +-
drivers/net/ethernet/sfc/falcon/farch.c | 42 +--
drivers/net/ethernet/sfc/falcon/selftest.c | 10 +-
drivers/net/ethernet/sfc/farch.c | 5 +-
drivers/net/ethernet/sfc/mcdi.c | 34 ++-
drivers/net/ethernet/sfc/ptp.c | 32 ++-
drivers/net/ethernet/sfc/rx.c | 5 +-
drivers/net/ethernet/sfc/selftest.c | 10 +-
drivers/net/ethernet/silan/sc92031.c | 60 +++--
drivers/net/ethernet/ti/netcp_ethss.c | 10 +-
drivers/net/ethernet/toshiba/tc35815.c | 5 +-
drivers/net/ethernet/via/via-rhine.c | 25 +-
drivers/net/hamradio/6pack.c | 30 ++-
drivers/net/hamradio/mkiss.c | 45 ++--
drivers/net/hyperv/rndis_filter.c | 5 +-
drivers/net/ieee802154/fakelb.c | 20 +-
drivers/net/ipvlan/ipvlan_core.c | 10 +-
drivers/net/ipvlan/ipvlan_main.c | 22 +-
drivers/net/macsec.c | 37 +--
drivers/net/macvlan.c | 5 +-
drivers/net/ppp/ppp_async.c | 12 +-
drivers/net/ppp/ppp_generic.c | 70 ++---
drivers/net/ppp/ppp_synctty.c | 5 +-
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net/core/pktgen.c | 23 +-
net/core/request_sock.c | 7 +-
net/core/rtnetlink.c | 15 +-
net/core/skbuff.c | 5 +-
net/core/sock.c | 52 ++--
net/core/sock_reuseport.c | 26 +-
net/dcb/dcbnl.c | 54 ++--
net/dccp/input.c | 5 +-
net/dccp/ipv4.c | 5 +-
net/dccp/minisocks.c | 10 +-
net/dccp/proto.c | 5 +-
net/decnet/af_decnet.c | 20 +-
net/decnet/dn_fib.c | 20 +-
net/decnet/dn_route.c | 56 ++--
net/decnet/dn_table.c | 27 +-
net/hsr/hsr_device.c | 7 +-
net/ieee802154/6lowpan/tx.c | 5 +-
net/ieee802154/socket.c | 25 +-
net/ipv4/af_inet.c | 10 +-
net/ipv4/arp.c | 10 +-
net/ipv4/cipso_ipv4.c | 19 +-
net/ipv4/esp4.c | 19 +-
net/ipv4/fib_frontend.c | 5 +-
net/ipv4/fib_semantics.c | 20 +-
net/ipv4/icmp.c | 10 +-
net/ipv4/igmp.c | 82 +++---
net/ipv4/inet_connection_sock.c | 28 +-
net/ipv4/inet_diag.c | 5 +-
net/ipv4/inet_fragment.c | 5 +-
net/ipv4/inet_hashtables.c | 30 ++-
net/ipv4/inet_timewait_sock.c | 5 +-
net/ipv4/inetpeer.c | 5 +-
net/ipv4/ip_output.c | 7 +-
net/ipv4/ipmr.c | 36 +--
net/ipv4/ipmr_base.c | 17 +-
net/ipv4/netfilter/arp_tables.c | 10 +-
net/ipv4/netfilter/ip_tables.c | 10 +-
net/ipv4/netfilter/ipt_CLUSTERIP.c | 21 +-
net/ipv4/netfilter/nf_defrag_ipv4.c | 5 +-
net/ipv4/netfilter/nf_log_arp.c | 5 +-
net/ipv4/netfilter/nf_log_ipv4.c | 5 +-
net/ipv4/netfilter/nf_nat_snmp_basic_main.c | 5 +-
net/ipv4/ping.c | 22 +-
net/ipv4/raw.c | 15 +-
net/ipv4/route.c | 30 ++-
net/ipv4/sysctl_net_ipv4.c | 5 +-
net/ipv4/tcp.c | 32 ++-
net/ipv4/tcp_input.c | 5 +-
net/ipv4/tcp_ipv4.c | 32 ++-
net/ipv4/tcp_metrics.c | 20 +-
net/ipv4/tcp_minisocks.c | 5 +-
net/ipv4/udp.c | 52 ++--
net/ipv4/udp_diag.c | 7 +-
net/ipv6/addrconf.c | 240 +++++++++--------
net/ipv6/af_inet6.c | 10 +-
net/ipv6/anycast.c | 38 +--
net/ipv6/calipso.c | 19 +-
net/ipv6/esp6.c | 14 +-
net/ipv6/icmp.c | 10 +-
net/ipv6/inet6_hashtables.c | 5 +-
net/ipv6/ip6_fib.c | 43 ++--
net/ipv6/ip6_flowlabel.c | 88 ++++---
net/ipv6/ip6_output.c | 12 +-
net/ipv6/ip6mr.c | 46 ++--
net/ipv6/ipv6_sockglue.c | 20 +-
net/ipv6/mcast.c | 221 +++++++++-------
net/ipv6/mip6.c | 15 +-
net/ipv6/ndisc.c | 17 +-
net/ipv6/netfilter/ip6_tables.c | 10 +-
net/ipv6/netfilter/nf_conntrack_reasm.c | 5 +-
net/ipv6/netfilter/nf_log_ipv6.c | 5 +-
net/ipv6/netfilter/nf_tproxy_ipv6.c | 5 +-
net/ipv6/raw.c | 5 +-
net/ipv6/route.c | 87 ++++---
net/ipv6/seg6_hmac.c | 5 +-
net/ipv6/tcp_ipv6.c | 14 +-
net/ipv6/xfrm6_tunnel.c | 15 +-
net/iucv/af_iucv.c | 25 +-
net/iucv/iucv.c | 70 +++--
net/kcm/kcmproc.c | 10 +-
net/kcm/kcmsock.c | 130 ++++++----
net/key/af_key.c | 5 +-
net/l2tp/l2tp_core.c | 100 +++++---
net/l2tp/l2tp_debugfs.c | 5 +-
net/l2tp/l2tp_ip.c | 34 ++-
net/l2tp/l2tp_ip6.c | 29 ++-
net/l2tp/l2tp_ppp.c | 10 +-
net/lapb/lapb_iface.c | 15 +-
net/llc/llc_conn.c | 15 +-
net/llc/llc_core.c | 15 +-
net/llc/llc_proc.c | 23 +-
net/llc/llc_sap.c | 10 +-
net/mac80211/agg-rx.c | 5 +-
net/mac80211/agg-tx.c | 50 ++--
net/mac80211/cfg.c | 36 +--
net/mac80211/debugfs.c | 5 +-
net/mac80211/debugfs_netdev.c | 5 +-
net/mac80211/debugfs_sta.c | 5 +-
net/mac80211/ht.c | 7 +-
net/mac80211/ibss.c | 14 +-
net/mac80211/iface.c | 14 +-
net/mac80211/main.c | 5 +-
net/mac80211/mesh_hwmp.c | 58 +++--
net/mac80211/mesh_pathtbl.c | 37 +--
net/mac80211/mesh_plink.c | 36 +--
net/mac80211/mesh_sync.c | 15 +-
net/mac80211/mlme.c | 5 +-
net/mac80211/ocb.c | 14 +-
net/mac80211/rate.c | 20 +-
net/mac80211/rx.c | 25 +-
net/mac80211/sta_info.c | 20 +-
net/mac80211/tdls.c | 10 +-
net/mac80211/tkip.c | 5 +-
net/mac80211/tx.c | 55 ++--
net/mac80211/util.c | 5 +-
net/mac802154/llsec.c | 43 ++--
net/mpls/internal.h | 10 +-
net/netfilter/ipset/ip_set_bitmap_gen.h | 2 +-
net/netfilter/ipset/ip_set_core.c | 79 +++---
net/netfilter/ipset/ip_set_hash_gen.h | 21 +-
net/netfilter/ipset/ip_set_list_set.c | 5 +-
net/netfilter/ipvs/ip_vs_app.c | 5 +-
net/netfilter/ipvs/ip_vs_conn.c | 22 +-
net/netfilter/ipvs/ip_vs_core.c | 20 +-
net/netfilter/ipvs/ip_vs_ctl.c | 40 +--
net/netfilter/ipvs/ip_vs_est.c | 10 +-
net/netfilter/ipvs/ip_vs_lblc.c | 10 +-
net/netfilter/ipvs/ip_vs_lblcr.c | 18 +-
net/netfilter/ipvs/ip_vs_proto_sctp.c | 5 +-
net/netfilter/ipvs/ip_vs_proto_tcp.c | 10 +-
net/netfilter/ipvs/ip_vs_rr.c | 12 +-
net/netfilter/ipvs/ip_vs_sync.c | 48 ++--
net/netfilter/ipvs/ip_vs_wrr.c | 10 +-
net/netfilter/ipvs/ip_vs_xmit.c | 18 +-
net/netfilter/nf_conncount.c | 10 +-
net/netfilter/nf_conntrack_core.c | 46 ++--
net/netfilter/nf_conntrack_ecache.c | 15 +-
net/netfilter/nf_conntrack_expect.c | 32 ++-
net/netfilter/nf_conntrack_ftp.c | 5 +-
net/netfilter/nf_conntrack_h323_main.c | 26 +-
net/netfilter/nf_conntrack_helper.c | 10 +-
net/netfilter/nf_conntrack_irc.c | 5 +-
net/netfilter/nf_conntrack_netlink.c | 38 +--
net/netfilter/nf_conntrack_pptp.c | 5 +-
net/netfilter/nf_conntrack_proto_dccp.c | 21 +-
net/netfilter/nf_conntrack_proto_gre.c | 27 +-
net/netfilter/nf_conntrack_proto_sctp.c | 19 +-
net/netfilter/nf_conntrack_proto_tcp.c | 31 ++-
net/netfilter/nf_conntrack_sane.c | 5 +-
net/netfilter/nf_conntrack_seqadj.c | 10 +-
net/netfilter/nf_conntrack_sip.c | 10 +-
net/netfilter/nf_log.c | 8 +-
net/netfilter/nf_log_common.c | 5 +-
net/netfilter/nf_nat_core.c | 10 +-
net/netfilter/nf_nat_redirect.c | 5 +-
net/netfilter/nf_queue.c | 5 +-
net/netfilter/nf_tables_core.c | 5 +-
net/netfilter/nfnetlink_log.c | 76 +++---
net/netfilter/nfnetlink_queue.c | 48 ++--
net/netfilter/nft_counter.c | 10 +-
net/netfilter/nft_limit.c | 7 +-
net/netfilter/nft_meta.c | 13 +-
net/netfilter/nft_set_rbtree.c | 32 ++-
net/netfilter/x_tables.c | 7 +-
net/netfilter/xt_RATEEST.c | 5 +-
net/netfilter/xt_dccp.c | 9 +-
net/netfilter/xt_hashlimit.c | 18 +-
net/netfilter/xt_limit.c | 7 +-
net/netfilter/xt_quota.c | 5 +-
net/netfilter/xt_recent.c | 35 +--
net/netlink/af_netlink.c | 10 +-
net/netrom/af_netrom.c | 32 ++-
net/netrom/nr_route.c | 58 +++--
net/nfc/rawsock.c | 15 +-
net/openvswitch/datapath.c | 5 +-
net/openvswitch/flow.c | 10 +-
net/openvswitch/meter.c | 15 +-
net/packet/af_packet.c | 34 ++-
net/rds/af_rds.c | 20 +-
net/rds/tcp.c | 10 +-
net/rds/tcp_connect.c | 5 +-
net/rds/tcp_listen.c | 15 +-
net/rds/tcp_recv.c | 5 +-
net/rds/tcp_send.c | 5 +-
net/rose/af_rose.c | 32 ++-
net/rose/rose_route.c | 73 +++---
net/rxrpc/af_rxrpc.c | 15 +-
net/rxrpc/ar-internal.h | 15 +-
net/rxrpc/call_accept.c | 17 +-
net/rxrpc/call_event.c | 16 +-
net/rxrpc/call_object.c | 10 +-
net/rxrpc/conn_client.c | 10 +-
net/rxrpc/conn_event.c | 12 +-
net/rxrpc/conn_object.c | 5 +-
net/rxrpc/conn_service.c | 4 +-
net/rxrpc/input.c | 15 +-
net/rxrpc/output.c | 14 +-
net/rxrpc/peer_event.c | 22 +-
net/rxrpc/peer_object.c | 10 +-
net/rxrpc/recvmsg.c | 31 ++-
net/rxrpc/sendmsg.c | 15 +-
net/sched/act_bpf.c | 12 +-
net/sched/act_csum.c | 12 +-
net/sched/act_gact.c | 12 +-
net/sched/act_ife.c | 22 +-
net/sched/act_ipt.c | 12 +-
net/sched/act_mirred.c | 19 +-
net/sched/act_nat.c | 5 +-
net/sched/act_pedit.c | 14 +-
net/sched/act_police.c | 12 +-
net/sched/act_sample.c | 12 +-
net/sched/act_simple.c | 12 +-
net/sched/act_skbmod.c | 12 +-
net/sched/act_tunnel_key.c | 12 +-
net/sched/act_vlan.c | 12 +-
net/sched/cls_route.c | 10 +-
net/sched/sch_generic.c | 24 +-
net/sched/sch_mq.c | 5 +-
net/sched/sch_mqprio.c | 14 +-
net/sched/sch_netem.c | 5 +-
net/sched/sch_teql.c | 5 +-
net/sctp/associola.c | 10 +-
net/sctp/input.c | 15 +-
net/sctp/ipv6.c | 14 +-
net/sctp/proc.c | 5 +-
net/sctp/protocol.c | 28 +-
net/sctp/sm_make_chunk.c | 9 +-
net/sctp/socket.c | 45 ++--
net/smc/af_smc.c | 10 +-
net/smc/smc_cdc.c | 10 +-
net/smc/smc_core.c | 83 +++---
net/smc/smc_tx.c | 10 +-
net/sunrpc/backchannel_rqst.c | 10 +-
net/sunrpc/sched.c | 42 +--
net/sunrpc/svc.c | 29 ++-
net/sunrpc/svc_xprt.c | 52 ++--
net/sunrpc/svcsock.c | 12 +-
net/sunrpc/xprt.c | 60 +++--
net/sunrpc/xprtrdma/backchannel.c | 17 +-
net/sunrpc/xprtrdma/svc_rdma_backchannel.c | 5 +-
net/sunrpc/xprtrdma/svc_rdma_transport.c | 10 +-
net/sunrpc/xprtrdma/transport.c | 5 +-
net/sunrpc/xprtsock.c | 70 +++--
net/switchdev/switchdev.c | 10 +-
net/tipc/bcast.h | 2 +-
net/tipc/discover.c | 20 +-
net/tipc/monitor.c | 54 ++--
net/tipc/msg.h | 10 +-
net/tipc/name_distr.c | 20 +-
net/tipc/name_table.c | 71 +++---
net/tipc/node.c | 65 +++--
net/tipc/socket.c | 14 +-
net/tipc/topsrv.c | 85 +++---
net/tls/tls_sw.c | 10 +-
net/unix/af_unix.c | 10 +-
net/vmw_vsock/af_vsock.c | 50 ++--
net/vmw_vsock/diag.c | 5 +-
net/vmw_vsock/virtio_transport.c | 36 +--
net/vmw_vsock/virtio_transport_common.c | 44 ++--
net/vmw_vsock/vmci_transport.c | 17 +-
net/wireless/mlme.c | 29 ++-
net/wireless/nl80211.c | 26 +-
net/wireless/reg.c | 19 +-
net/wireless/scan.c | 49 ++--
net/x25/af_x25.c | 45 ++--
net/x25/x25_forward.c | 25 +-
net/x25/x25_link.c | 30 ++-
net/x25/x25_proc.c | 6 +-
net/x25/x25_route.c | 25 +-
net/xdp/xsk.c | 10 +-
net/xfrm/xfrm_input.c | 10 +-
net/xfrm/xfrm_ipcomp.c | 7 +-
net/xfrm/xfrm_output.c | 7 +-
net/xfrm/xfrm_policy.c | 94 ++++---
net/xfrm/xfrm_state.c | 172 ++++++++-----
net/xfrm/xfrm_user.c | 15 +-
security/selinux/netif.c | 15 +-
security/selinux/netnode.c | 12 +-
security/selinux/netport.c | 12 +-
security/smack/smack_lsm.c | 5 +-
sound/pci/asihpi/hpios.h | 2 +-
sound/soc/intel/atom/sst/sst_ipc.c | 19 +-
sound/soc/omap/ams-delta.c | 10 +-
tools/virtio/ringtest/ptr_ring.c | 2 +-
945 files changed, 13857 insertions(+), 9767 deletions(-)

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