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..
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a.out.h
(6.73 KB)
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acct.h
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acrn.h
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adb.h
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adfs_fs.h
(993 B)
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affs_hardblocks.h
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agpgart.h
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aio_abi.h
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am437x-vpfe.h
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android
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apm_bios.h
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arcfb.h
(213 B)
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arm_sdei.h
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aspeed-lpc-ctrl.h
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aspeed-p2a-ctrl.h
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atalk.h
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atm.h
(7.7 KB)
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atm_eni.h
(648 B)
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atm_he.h
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atm_idt77105.h
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atm_nicstar.h
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atm_tcp.h
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atm_zatm.h
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atmapi.h
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atmarp.h
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atmbr2684.h
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atmclip.h
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atmdev.h
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atmioc.h
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atmlec.h
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atmmpc.h
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atmppp.h
(639 B)
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atmsap.h
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atmsvc.h
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audit.h
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auto_dev-ioctl.h
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auto_fs.h
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auto_fs4.h
(451 B)
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auxvec.h
(1.56 KB)
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ax25.h
(2.76 KB)
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batadv_packet.h
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batman_adv.h
(16.49 KB)
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baycom.h
(883 B)
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bcm933xx_hcs.h
(419 B)
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bfs_fs.h
(1.86 KB)
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binfmts.h
(776 B)
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bits.h
(447 B)
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blkpg.h
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blktrace_api.h
(4.59 KB)
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blkzoned.h
(6.34 KB)
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bpf.h
(272.11 KB)
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bpf_common.h
(1.33 KB)
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bpf_perf_event.h
(529 B)
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bpfilter.h
(465 B)
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bpqether.h
(981 B)
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bsg.h
(2.44 KB)
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bt-bmc.h
(572 B)
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btf.h
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btrfs.h
(29.85 KB)
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btrfs_tree.h
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byteorder
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cachefiles.h
(1.61 KB)
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caif
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can
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can.h
(11.23 KB)
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capability.h
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capi.h
(3.05 KB)
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cciss_defs.h
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cciss_ioctl.h
(2.7 KB)
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ccs.h
(767 B)
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cdrom.h
(28.87 KB)
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cec-funcs.h
(53.14 KB)
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cec.h
(40.47 KB)
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cfm_bridge.h
(1.42 KB)
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cgroupstats.h
(2.17 KB)
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chio.h
(5.16 KB)
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cifs
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close_range.h
(377 B)
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cm4000_cs.h
(1.76 KB)
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cn_proc.h
(4.05 KB)
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coda.h
(17.79 KB)
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coff.h
(12.25 KB)
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connector.h
(2.2 KB)
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const.h
(987 B)
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coresight-stm.h
(747 B)
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cramfs_fs.h
(3.47 KB)
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cryptouser.h
(5.2 KB)
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cuda.h
(905 B)
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cxl_mem.h
(7.73 KB)
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cycx_cfm.h
(2.92 KB)
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dcbnl.h
(24.7 KB)
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dccp.h
(6.29 KB)
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devlink.h
(22.77 KB)
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dlm.h
(2.49 KB)
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dlm_device.h
(2.48 KB)
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dlm_netlink.h
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dlm_plock.h
(894 B)
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dlmconstants.h
(4.96 KB)
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dm-ioctl.h
(11.48 KB)
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dm-log-userspace.h
(14.83 KB)
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dma-buf.h
(5.12 KB)
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dma-heap.h
(1.36 KB)
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dn.h
(4.53 KB)
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dns_resolver.h
(3.86 KB)
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dpll.h
(8.56 KB)
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dqblk_xfs.h
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dvb
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edd.h
(5.47 KB)
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efs_fs_sb.h
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elf-em.h
(2.57 KB)
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elf-fdpic.h
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elf.h
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errno.h
(23 B)
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errqueue.h
(1.94 KB)
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erspan.h
(1.03 KB)
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ethtool.h
(101.42 KB)
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ethtool_netlink.h
(6.17 KB)
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ethtool_netlink_generated.h
(19.17 KB)
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eventfd.h
(264 B)
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eventpoll.h
(2.84 KB)
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f2fs.h
(3.22 KB)
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fadvise.h
(842 B)
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falloc.h
(3.56 KB)
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fanotify.h
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fb.h
(16.09 KB)
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fcntl.h
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fd.h
(11.83 KB)
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fdreg.h
(5.24 KB)
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fib_rules.h
(1.99 KB)
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fiemap.h
(2.71 KB)
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filter.h
(2.16 KB)
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firewire-cdev.h
(43.2 KB)
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firewire-constants.h
(3.16 KB)
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fou.h
(819 B)
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fpga-dfl.h
(8.52 KB)
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fs.h
(12.88 KB)
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fscrypt.h
(6.41 KB)
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fsi.h
(2.2 KB)
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fsl_hypervisor.h
(7.13 KB)
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fsl_mc.h
(734 B)
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fsmap.h
(4.29 KB)
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fsverity.h
(3.11 KB)
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fuse.h
(25.36 KB)
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futex.h
(5.98 KB)
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gameport.h
(897 B)
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gen_stats.h
(1.49 KB)
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genetlink.h
(2.19 KB)
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genwqe
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gfs2_ondisk.h
(14.43 KB)
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gpio.h
(19.46 KB)
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gsmmux.h
(4.4 KB)
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gtp.h
(734 B)
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handshake.h
(1.61 KB)
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hash_info.h
(971 B)
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hdlc
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hdlc.h
(637 B)
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hdlcdrv.h
(2.84 KB)
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hdreg.h
(22.17 KB)
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hid.h
(2.04 KB)
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hiddev.h
(6.2 KB)
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hidraw.h
(1.95 KB)
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hpet.h
(743 B)
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hsi
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hsr_netlink.h
(1.08 KB)
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hw_breakpoint.h
(742 B)
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hyperv.h
(10.89 KB)
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i2c-dev.h
(1.83 KB)
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i2c.h
(6.73 KB)
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i2o-dev.h
(11.28 KB)
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i8k.h
(1.49 KB)
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icmp.h
(4.67 KB)
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icmpv6.h
(4.2 KB)
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idxd.h
(9.11 KB)
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if.h
(10.67 KB)
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if_addr.h
(1.84 KB)
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if_addrlabel.h
(721 B)
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if_alg.h
(1.53 KB)
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if_arcnet.h
(3.63 KB)
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if_arp.h
(6.41 KB)
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if_bonding.h
(5.02 KB)
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if_bridge.h
(20.27 KB)
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if_cablemodem.h
(986 B)
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if_eql.h
(1.32 KB)
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if_ether.h
(8.21 KB)
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if_fc.h
(1.7 KB)
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if_fddi.h
(4.27 KB)
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if_hippi.h
(4.14 KB)
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if_infiniband.h
(1.22 KB)
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if_link.h
(52.92 KB)
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if_ltalk.h
(210 B)
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if_macsec.h
(6.35 KB)
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if_packet.h
(7.99 KB)
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if_phonet.h
(424 B)
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if_plip.h
(660 B)
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if_ppp.h
(29 B)
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if_pppol2tp.h
(3.23 KB)
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if_pppox.h
(4.76 KB)
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if_slip.h
(872 B)
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if_team.h
(2.54 KB)
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if_tun.h
(4 KB)
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if_tunnel.h
(5.36 KB)
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if_vlan.h
(1.79 KB)
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if_x25.h
(881 B)
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if_xdp.h
(5.29 KB)
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ife.h
(351 B)
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igmp.h
(2.99 KB)
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iio
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ila.h
(1.22 KB)
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in.h
(10.24 KB)
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in6.h
(7.36 KB)
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in_route.h
(936 B)
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inet_diag.h
(4.9 KB)
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inotify.h
(3.21 KB)
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input-event-codes.h
(29.5 KB)
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input.h
(15.84 KB)
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io_uring.h
(20.4 KB)
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ioctl.h
(163 B)
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iommufd.h
(36.45 KB)
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ioprio.h
(4.08 KB)
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ip.h
(4.7 KB)
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ip6_tunnel.h
(1.91 KB)
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ip_vs.h
(13.8 KB)
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ipc.h
(2.05 KB)
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ipmi.h
(15.08 KB)
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ipmi_bmc.h
(488 B)
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ipmi_msgdefs.h
(3.35 KB)
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ipmi_ssif_bmc.h
(441 B)
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ipsec.h
(947 B)
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ipv6.h
(4.07 KB)
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ipv6_route.h
(1.86 KB)
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ipx.h
(2.29 KB)
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irqnr.h
(104 B)
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isdn
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iso_fs.h
(6.33 KB)
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isst_if.h
(14.92 KB)
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ivtv.h
(2.95 KB)
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ivtvfb.h
(1.18 KB)
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jffs2.h
(6.66 KB)
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joystick.h
(3.35 KB)
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kcm.h
(822 B)
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kcmp.h
(522 B)
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kcov.h
(1.92 KB)
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kd.h
(6.3 KB)
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kdev_t.h
(383 B)
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kernel-page-flags.h
(900 B)
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kernel.h
(194 B)
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kernelcapi.h
(1019 B)
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kexec.h
(2.05 KB)
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keyboard.h
(13.14 KB)
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keyctl.h
(5.86 KB)
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kfd_ioctl.h
(57.06 KB)
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kfd_sysfs.h
(5.25 KB)
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kvm.h
(47.24 KB)
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kvm_para.h
(1001 B)
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l2tp.h
(5.61 KB)
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landlock.h
(11.55 KB)
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libc-compat.h
(8.09 KB)
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limits.h
(937 B)
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lirc.h
(7.95 KB)
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llc.h
(3.09 KB)
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loadpin.h
(834 B)
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loop.h
(3.32 KB)
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lp.h
(4.09 KB)
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lsm.h
(1.51 KB)
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lwtunnel.h
(2.31 KB)
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magic.h
(3.73 KB)
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major.h
(4.55 KB)
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map_to_7segment.h
(6.45 KB)
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matroxfb.h
(1.43 KB)
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max2175.h
(1.01 KB)
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mdio.h
(23.78 KB)
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media-bus-format.h
(6.75 KB)
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media.h
(12.46 KB)
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mei.h
(3.4 KB)
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mei_uuid.h
(738 B)
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membarrier.h
(9.14 KB)
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memfd.h
(1.43 KB)
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mempolicy.h
(2.51 KB)
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meye.h
(2.47 KB)
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mii.h
(9.27 KB)
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minix_fs.h
(2.07 KB)
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misc
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mman.h
(1.75 KB)
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mmc
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mmtimer.h
(2.07 KB)
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module.h
(293 B)
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mount.h
(4.9 KB)
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mpls.h
(2.25 KB)
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mpls_iptunnel.h
(761 B)
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mptcp.h
(3.67 KB)
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mptcp_pm.h
(4.3 KB)
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mqueue.h
(2.15 KB)
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mroute.h
(5.78 KB)
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mroute6.h
(4.81 KB)
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mrp_bridge.h
(1.67 KB)
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msdos_fs.h
(6.57 KB)
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msg.h
(3.31 KB)
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mshv.h
(7.93 KB)
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mtio.h
(7.98 KB)
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nbd-netlink.h
(2.35 KB)
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nbd.h
(3.77 KB)
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ncsi.h
(4.71 KB)
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ndctl.h
(6.67 KB)
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neighbour.h
(5.91 KB)
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net.h
(2.04 KB)
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net_dropmon.h
(2.85 KB)
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net_namespace.h
(715 B)
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net_shaper.h
(2.52 KB)
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net_tstamp.h
(6.3 KB)
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netconf.h
(614 B)
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netdev.h
(5.65 KB)
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netdevice.h
(2.2 KB)
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netfilter
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netfilter.h
(1.69 KB)
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netfilter_arp
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netfilter_arp.h
(445 B)
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netfilter_bridge
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netfilter_bridge.h
(1.14 KB)
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netfilter_decnet.h
(1.72 KB)
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netfilter_ipv4
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netfilter_ipv4.h
(1.45 KB)
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netfilter_ipv6
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netfilter_ipv6.h
(1.35 KB)
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netlink.h
(12.09 KB)
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netlink_diag.h
(1.49 KB)
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netrom.h
(807 B)
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nexthop.h
(3.97 KB)
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nfc.h
(10.95 KB)
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nfs.h
(4.36 KB)
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nfs2.h
(1.43 KB)
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nfs3.h
(2.4 KB)
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nfs4.h
(6.54 KB)
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nfs4_mount.h
(1.89 KB)
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nfs_fs.h
(1.62 KB)
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nfs_idmap.h
(2.19 KB)
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nfs_mount.h
(2.09 KB)
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nfsacl.h
(718 B)
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nfsd
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nfsd_netlink.h
(1.95 KB)
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nilfs2_api.h
(7.41 KB)
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nilfs2_ondisk.h
(17.66 KB)
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nitro_enclaves.h
(12.85 KB)
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nl80211.h
(341.33 KB)
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nsfs.h
(639 B)
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nubus.h
(8 KB)
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nvme_ioctl.h
(2.43 KB)
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nvram.h
(532 B)
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omap3isp.h
(20.36 KB)
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omapfb.h
(5.78 KB)
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oom.h
(511 B)
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openat2.h
(1.42 KB)
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openvswitch.h
(40.75 KB)
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packet_diag.h
(1.63 KB)
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param.h
(141 B)
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parport.h
(3.56 KB)
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patchkey.h
(892 B)
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pci.h
(1.35 KB)
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pci_regs.h
(61.89 KB)
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pcitest.h
(920 B)
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perf_event.h
(42.68 KB)
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personality.h
(2.05 KB)
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pfkeyv2.h
(10.32 KB)
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pfrut.h
(7.8 KB)
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pg.h
(2.34 KB)
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phantom.h
(1.62 KB)
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phonet.h
(4.57 KB)
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pidfd.h
(256 B)
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pkt_cls.h
(18.65 KB)
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pkt_sched.h
(28.75 KB)
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pktcdvd.h
(2.63 KB)
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pmu.h
(5.32 KB)
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poll.h
(22 B)
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posix_acl.h
(1.22 KB)
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posix_acl_xattr.h
(1.09 KB)
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posix_types.h
(1.07 KB)
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ppdev.h
(3.21 KB)
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ppp-comp.h
(2.47 KB)
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ppp-ioctl.h
(5.59 KB)
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ppp_defs.h
(5.43 KB)
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pps.h
(4.62 KB)
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pr.h
(1.59 KB)
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prctl.h
(10.81 KB)
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psample.h
(2.57 KB)
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psci.h
(5.21 KB)
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psp-dbc.h
(5.16 KB)
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psp-sev.h
(7.59 KB)
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ptp_clock.h
(7.35 KB)
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ptrace.h
(4.29 KB)
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qemu_fw_cfg.h
(2.41 KB)
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qnx4_fs.h
(2.27 KB)
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qnxtypes.h
(624 B)
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qrtr.h
(893 B)
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quota.h
(6.16 KB)
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radeonfb.h
(360 B)
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raid
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random.h
(1.38 KB)
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rds.h
(10.91 KB)
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reboot.h
(1.31 KB)
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reiserfs_fs.h
(775 B)
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reiserfs_xattr.h
(533 B)
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remoteproc_cdev.h
(1.08 KB)
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resource.h
(2.32 KB)
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rfkill.h
(6.45 KB)
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rio_cm_cdev.h
(3.17 KB)
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rio_mport_cdev.h
(9.11 KB)
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rkisp1-config.h
(30.63 KB)
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romfs_fs.h
(1.21 KB)
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rose.h
(2.18 KB)
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route.h
(2.28 KB)
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rpl.h
(814 B)
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rpl_iptunnel.h
(424 B)
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rpmsg.h
(1.03 KB)
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rpmsg_types.h
(288 B)
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rseq.h
(4.79 KB)
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rtc.h
(5.19 KB)
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rtnetlink.h
(20.8 KB)
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rxrpc.h
(4.81 KB)
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scc.h
(4.52 KB)
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sched
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sched.h
(6.12 KB)
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scif_ioctl.h
(6.23 KB)
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screen_info.h
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Editing: tcp.h
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ /* * INET An implementation of the TCP/IP protocol suite for the LINUX * operating system. INET is implemented using the BSD Socket * interface as the means of communication with the user level. * * Definitions for the TCP protocol. * * Version: @(#)tcp.h 1.0.2 04/28/93 * * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ #ifndef _LINUX_TCP_H #define _LINUX_TCP_H #include <linux/types.h> #include <asm/byteorder.h> #include <linux/socket.h> struct tcphdr { __be16 source; __be16 dest; __be32 seq; __be32 ack_seq; #if defined(__LITTLE_ENDIAN_BITFIELD) __u16 res1:4, doff:4, fin:1, syn:1, rst:1, psh:1, ack:1, urg:1, ece:1, cwr:1; #elif defined(__BIG_ENDIAN_BITFIELD) __u16 doff:4, res1:4, cwr:1, ece:1, urg:1, ack:1, psh:1, rst:1, syn:1, fin:1; #else #error "Adjust your <asm/byteorder.h> defines" #endif __be16 window; __sum16 check; __be16 urg_ptr; }; /* * The union cast uses a gcc extension to avoid aliasing problems * (union is compatible to any of its members) * This means this part of the code is -fstrict-aliasing safe now. */ union tcp_word_hdr { struct tcphdr hdr; __be32 words[5]; }; #define tcp_flag_word(tp) (((union tcp_word_hdr *)(tp))->words[3]) enum { TCP_FLAG_CWR = __constant_cpu_to_be32(0x00800000), TCP_FLAG_ECE = __constant_cpu_to_be32(0x00400000), TCP_FLAG_URG = __constant_cpu_to_be32(0x00200000), TCP_FLAG_ACK = __constant_cpu_to_be32(0x00100000), TCP_FLAG_PSH = __constant_cpu_to_be32(0x00080000), TCP_FLAG_RST = __constant_cpu_to_be32(0x00040000), TCP_FLAG_SYN = __constant_cpu_to_be32(0x00020000), TCP_FLAG_FIN = __constant_cpu_to_be32(0x00010000), TCP_RESERVED_BITS = __constant_cpu_to_be32(0x0F000000), TCP_DATA_OFFSET = __constant_cpu_to_be32(0xF0000000) }; /* * TCP general constants */ #define TCP_MSS_DEFAULT 536U /* IPv4 (RFC1122, RFC2581) */ #define TCP_MSS_DESIRED 1220U /* IPv6 (tunneled), EDNS0 (RFC3226) */ /* TCP socket options */ #define TCP_NODELAY 1 /* Turn off Nagle's algorithm. */ #define TCP_MAXSEG 2 /* Limit MSS */ #define TCP_CORK 3 /* Never send partially complete segments */ #define TCP_KEEPIDLE 4 /* Start keeplives after this period */ #define TCP_KEEPINTVL 5 /* Interval between keepalives */ #define TCP_KEEPCNT 6 /* Number of keepalives before death */ #define TCP_SYNCNT 7 /* Number of SYN retransmits */ #define TCP_LINGER2 8 /* Life time of orphaned FIN-WAIT-2 state */ #define TCP_DEFER_ACCEPT 9 /* Wake up listener only when data arrive */ #define TCP_WINDOW_CLAMP 10 /* Bound advertised window */ #define TCP_INFO 11 /* Information about this connection. */ #define TCP_QUICKACK 12 /* Block/reenable quick acks */ #define TCP_CONGESTION 13 /* Congestion control algorithm */ #define TCP_MD5SIG 14 /* TCP MD5 Signature (RFC2385) */ #define TCP_THIN_LINEAR_TIMEOUTS 16 /* Use linear timeouts for thin streams*/ #define TCP_THIN_DUPACK 17 /* Fast retrans. after 1 dupack */ #define TCP_USER_TIMEOUT 18 /* How long for loss retry before timeout */ #define TCP_REPAIR 19 /* TCP sock is under repair right now */ #define TCP_REPAIR_QUEUE 20 #define TCP_QUEUE_SEQ 21 #define TCP_REPAIR_OPTIONS 22 #define TCP_FASTOPEN 23 /* Enable FastOpen on listeners */ #define TCP_TIMESTAMP 24 #define TCP_NOTSENT_LOWAT 25 /* limit number of unsent bytes in write queue */ #define TCP_CC_INFO 26 /* Get Congestion Control (optional) info */ #define TCP_SAVE_SYN 27 /* Record SYN headers for new connections */ #define TCP_SAVED_SYN 28 /* Get SYN headers recorded for connection */ #define TCP_REPAIR_WINDOW 29 /* Get/set window parameters */ #define TCP_FASTOPEN_CONNECT 30 /* Attempt FastOpen with connect */ #define TCP_ULP 31 /* Attach a ULP to a TCP connection */ #define TCP_MD5SIG_EXT 32 /* TCP MD5 Signature with extensions */ #define TCP_FASTOPEN_KEY 33 /* Set the key for Fast Open (cookie) */ #define TCP_FASTOPEN_NO_COOKIE 34 /* Enable TFO without a TFO cookie */ #define TCP_ZEROCOPY_RECEIVE 35 #define TCP_INQ 36 /* Notify bytes available to read as a cmsg on read */ #define TCP_CM_INQ TCP_INQ #define TCP_TX_DELAY 37 /* delay outgoing packets by XX usec */ #define TCP_REPAIR_ON 1 #define TCP_REPAIR_OFF 0 #define TCP_REPAIR_OFF_NO_WP -1 /* Turn off without window probes */ struct tcp_repair_opt { __u32 opt_code; __u32 opt_val; }; struct tcp_repair_window { __u32 snd_wl1; __u32 snd_wnd; __u32 max_window; __u32 rcv_wnd; __u32 rcv_wup; }; enum { TCP_NO_QUEUE, TCP_RECV_QUEUE, TCP_SEND_QUEUE, TCP_QUEUES_NR, }; /* why fastopen failed from client perspective */ enum tcp_fastopen_client_fail { TFO_STATUS_UNSPEC, /* catch-all */ TFO_COOKIE_UNAVAILABLE, /* if not in TFO_CLIENT_NO_COOKIE mode */ TFO_DATA_NOT_ACKED, /* SYN-ACK did not ack SYN data */ TFO_SYN_RETRANSMITTED, /* SYN-ACK did not ack SYN data after timeout */ }; /* for TCP_INFO socket option */ #define TCPI_OPT_TIMESTAMPS 1 #define TCPI_OPT_SACK 2 #define TCPI_OPT_WSCALE 4 #define TCPI_OPT_ECN 8 /* ECN was negociated at TCP session init */ #define TCPI_OPT_ECN_SEEN 16 /* we received at least one packet with ECT */ #define TCPI_OPT_SYN_DATA 32 /* SYN-ACK acked data in SYN sent or rcvd */ /* * Sender's congestion state indicating normal or abnormal situations * in the last round of packets sent. The state is driven by the ACK * information and timer events. */ enum tcp_ca_state { /* * Nothing bad has been observed recently. * No apparent reordering, packet loss, or ECN marks. */ TCP_CA_Open = 0, #define TCPF_CA_Open (1<<TCP_CA_Open) /* * The sender enters disordered state when it has received DUPACKs or * SACKs in the last round of packets sent. This could be due to packet * loss or reordering but needs further information to confirm packets * have been lost. */ TCP_CA_Disorder = 1, #define TCPF_CA_Disorder (1<<TCP_CA_Disorder) /* * The sender enters Congestion Window Reduction (CWR) state when it * has received ACKs with ECN-ECE marks, or has experienced congestion * or packet discard on the sender host (e.g. qdisc). */ TCP_CA_CWR = 2, #define TCPF_CA_CWR (1<<TCP_CA_CWR) /* * The sender is in fast recovery and retransmitting lost packets, * typically triggered by ACK events. */ TCP_CA_Recovery = 3, #define TCPF_CA_Recovery (1<<TCP_CA_Recovery) /* * The sender is in loss recovery triggered by retransmission timeout. */ TCP_CA_Loss = 4 #define TCPF_CA_Loss (1<<TCP_CA_Loss) }; struct tcp_info { __u8 tcpi_state; __u8 tcpi_ca_state; __u8 tcpi_retransmits; __u8 tcpi_probes; __u8 tcpi_backoff; __u8 tcpi_options; __u8 tcpi_snd_wscale : 4, tcpi_rcv_wscale : 4; __u8 tcpi_delivery_rate_app_limited:1, tcpi_fastopen_client_fail:2; __u32 tcpi_rto; __u32 tcpi_ato; __u32 tcpi_snd_mss; __u32 tcpi_rcv_mss; __u32 tcpi_unacked; __u32 tcpi_sacked; __u32 tcpi_lost; __u32 tcpi_retrans; __u32 tcpi_fackets; /* Times. */ __u32 tcpi_last_data_sent; __u32 tcpi_last_ack_sent; /* Not remembered, sorry. */ __u32 tcpi_last_data_recv; __u32 tcpi_last_ack_recv; /* Metrics. */ __u32 tcpi_pmtu; __u32 tcpi_rcv_ssthresh; __u32 tcpi_rtt; __u32 tcpi_rttvar; __u32 tcpi_snd_ssthresh; __u32 tcpi_snd_cwnd; __u32 tcpi_advmss; __u32 tcpi_reordering; __u32 tcpi_rcv_rtt; __u32 tcpi_rcv_space; __u32 tcpi_total_retrans; __u64 tcpi_pacing_rate; __u64 tcpi_max_pacing_rate; __u64 tcpi_bytes_acked; /* RFC4898 tcpEStatsAppHCThruOctetsAcked */ __u64 tcpi_bytes_received; /* RFC4898 tcpEStatsAppHCThruOctetsReceived */ __u32 tcpi_segs_out; /* RFC4898 tcpEStatsPerfSegsOut */ __u32 tcpi_segs_in; /* RFC4898 tcpEStatsPerfSegsIn */ __u32 tcpi_notsent_bytes; __u32 tcpi_min_rtt; __u32 tcpi_data_segs_in; /* RFC4898 tcpEStatsDataSegsIn */ __u32 tcpi_data_segs_out; /* RFC4898 tcpEStatsDataSegsOut */ __u64 tcpi_delivery_rate; __u64 tcpi_busy_time; /* Time (usec) busy sending data */ __u64 tcpi_rwnd_limited; /* Time (usec) limited by receive window */ __u64 tcpi_sndbuf_limited; /* Time (usec) limited by send buffer */ __u32 tcpi_delivered; __u32 tcpi_delivered_ce; __u64 tcpi_bytes_sent; /* RFC4898 tcpEStatsPerfHCDataOctetsOut */ __u64 tcpi_bytes_retrans; /* RFC4898 tcpEStatsPerfOctetsRetrans */ __u32 tcpi_dsack_dups; /* RFC4898 tcpEStatsStackDSACKDups */ __u32 tcpi_reord_seen; /* reordering events seen */ __u32 tcpi_rcv_ooopack; /* Out-of-order packets received */ __u32 tcpi_snd_wnd; /* peer's advertised receive window after * scaling (bytes) */ }; /* netlink attributes types for SCM_TIMESTAMPING_OPT_STATS */ enum { TCP_NLA_PAD, TCP_NLA_BUSY, /* Time (usec) busy sending data */ TCP_NLA_RWND_LIMITED, /* Time (usec) limited by receive window */ TCP_NLA_SNDBUF_LIMITED, /* Time (usec) limited by send buffer */ TCP_NLA_DATA_SEGS_OUT, /* Data pkts sent including retransmission */ TCP_NLA_TOTAL_RETRANS, /* Data pkts retransmitted */ TCP_NLA_PACING_RATE, /* Pacing rate in bytes per second */ TCP_NLA_DELIVERY_RATE, /* Delivery rate in bytes per second */ TCP_NLA_SND_CWND, /* Sending congestion window */ TCP_NLA_REORDERING, /* Reordering metric */ TCP_NLA_MIN_RTT, /* minimum RTT */ TCP_NLA_RECUR_RETRANS, /* Recurring retransmits for the current pkt */ TCP_NLA_DELIVERY_RATE_APP_LMT, /* delivery rate application limited ? */ TCP_NLA_SNDQ_SIZE, /* Data (bytes) pending in send queue */ TCP_NLA_CA_STATE, /* ca_state of socket */ TCP_NLA_SND_SSTHRESH, /* Slow start size threshold */ TCP_NLA_DELIVERED, /* Data pkts delivered incl. out-of-order */ TCP_NLA_DELIVERED_CE, /* Like above but only ones w/ CE marks */ TCP_NLA_BYTES_SENT, /* Data bytes sent including retransmission */ TCP_NLA_BYTES_RETRANS, /* Data bytes retransmitted */ TCP_NLA_DSACK_DUPS, /* DSACK blocks received */ TCP_NLA_REORD_SEEN, /* reordering events seen */ TCP_NLA_SRTT, /* smoothed RTT in usecs */ TCP_NLA_TIMEOUT_REHASH, /* Timeout-triggered rehash attempts */ TCP_NLA_BYTES_NOTSENT, /* Bytes in write queue not yet sent */ TCP_NLA_EDT, /* Earliest departure time (CLOCK_MONOTONIC) */ TCP_NLA_TTL, /* TTL or hop limit of a packet received */ }; /* for TCP_MD5SIG socket option */ #define TCP_MD5SIG_MAXKEYLEN 80 /* tcp_md5sig extension flags for TCP_MD5SIG_EXT */ #define TCP_MD5SIG_FLAG_PREFIX 0x1 /* address prefix length */ #define TCP_MD5SIG_FLAG_IFINDEX 0x2 /* ifindex set */ struct tcp_md5sig { struct __kernel_sockaddr_storage tcpm_addr; /* address associated */ __u8 tcpm_flags; /* extension flags */ __u8 tcpm_prefixlen; /* address prefix */ __u16 tcpm_keylen; /* key length */ int tcpm_ifindex; /* device index for scope */ __u8 tcpm_key[TCP_MD5SIG_MAXKEYLEN]; /* key (binary) */ }; /* INET_DIAG_MD5SIG */ struct tcp_diag_md5sig { __u8 tcpm_family; __u8 tcpm_prefixlen; __u16 tcpm_keylen; __be32 tcpm_addr[4]; __u8 tcpm_key[TCP_MD5SIG_MAXKEYLEN]; }; /* setsockopt(fd, IPPROTO_TCP, TCP_ZEROCOPY_RECEIVE, ...) */ #define TCP_RECEIVE_ZEROCOPY_FLAG_TLB_CLEAN_HINT 0x1 struct tcp_zerocopy_receive { __u64 address; /* in: address of mapping */ __u32 length; /* in/out: number of bytes to map/mapped */ __u32 recv_skip_hint; /* out: amount of bytes to skip */ __u32 inq; /* out: amount of bytes in read queue */ __s32 err; /* out: socket error */ __u64 copybuf_address; /* in: copybuf address (small reads) */ __s32 copybuf_len; /* in/out: copybuf bytes avail/used or error */ __u32 flags; /* in: flags */ __u64 msg_control; /* ancillary data */ __u64 msg_controllen; __u32 msg_flags; __u32 reserved; /* set to 0 for now */ }; #endif /* _LINUX_TCP_H */
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