Linus Torvalds
642e7fd233
Merge branch 'syscalls-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux
...
Pull removal of in-kernel calls to syscalls from Dominik Brodowski:
"System calls are interaction points between userspace and the kernel.
Therefore, system call functions such as sys_xyzzy() or
compat_sys_xyzzy() should only be called from userspace via the
syscall table, but not from elsewhere in the kernel.
At least on 64-bit x86, it will likely be a hard requirement from
v4.17 onwards to not call system call functions in the kernel: It is
better to use use a different calling convention for system calls
there, where struct pt_regs is decoded on-the-fly in a syscall wrapper
which then hands processing over to the actual syscall function. This
means that only those parameters which are actually needed for a
specific syscall are passed on during syscall entry, instead of
filling in six CPU registers with random user space content all the
time (which may cause serious trouble down the call chain). Those
x86-specific patches will be pushed through the x86 tree in the near
future.
Moreover, rules on how data may be accessed may differ between kernel
data and user data. This is another reason why calling sys_xyzzy() is
generally a bad idea, and -- at most -- acceptable in arch-specific
code.
This patchset removes all in-kernel calls to syscall functions in the
kernel with the exception of arch/. On top of this, it cleans up the
three places where many syscalls are referenced or prototyped, namely
kernel/sys_ni.c, include/linux/syscalls.h and include/linux/compat.h"
* 'syscalls-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux: (109 commits)
bpf: whitelist all syscalls for error injection
kernel/sys_ni: remove {sys_,sys_compat} from cond_syscall definitions
kernel/sys_ni: sort cond_syscall() entries
syscalls/x86: auto-create compat_sys_*() prototypes
syscalls: sort syscall prototypes in include/linux/compat.h
net: remove compat_sys_*() prototypes from net/compat.h
syscalls: sort syscall prototypes in include/linux/syscalls.h
kexec: move sys_kexec_load() prototype to syscalls.h
x86/sigreturn: use SYSCALL_DEFINE0
x86: fix sys_sigreturn() return type to be long, not unsigned long
x86/ioport: add ksys_ioperm() helper; remove in-kernel calls to sys_ioperm()
mm: add ksys_readahead() helper; remove in-kernel calls to sys_readahead()
mm: add ksys_mmap_pgoff() helper; remove in-kernel calls to sys_mmap_pgoff()
mm: add ksys_fadvise64_64() helper; remove in-kernel call to sys_fadvise64_64()
fs: add ksys_fallocate() wrapper; remove in-kernel calls to sys_fallocate()
fs: add ksys_p{read,write}64() helpers; remove in-kernel calls to syscalls
fs: add ksys_truncate() wrapper; remove in-kernel calls to sys_truncate()
fs: add ksys_sync_file_range helper(); remove in-kernel calls to syscall
kernel: add ksys_setsid() helper; remove in-kernel call to sys_setsid()
kernel: add ksys_unshare() helper; remove in-kernel calls to sys_unshare()
...
2018-04-02 21:22:12 -07:00
..
9p
9p: Implement show_options
2017-07-11 06:08:58 -04:00
bluetooth
net: annotate ->poll() instances
2017-11-27 16:20:04 -05:00
caif
caif: reduce stack size with KASAN
2018-01-19 14:02:12 -05:00
iucv
net: annotate ->poll() instances
2017-11-27 16:20:04 -05:00
netfilter
netfilter: nf_tables: cache device name in flowtable object
2018-03-22 12:57:07 +01:00
netns
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2018-01-21 11:35:34 -05:00
nfc
NFC: Add nfc_dbg() macro
2017-04-05 10:15:20 +02:00
phonet
net: phonet: mark phonet_protocol as const
2017-10-07 23:15:08 +01:00
sctp
Currently, hardened usercopy performs dynamic bounds checking on slab
2018-02-03 16:25:42 -08:00
tc_act
net/sched: act_csum: don't use spinlock in the fast path
2018-01-23 19:51:46 -05:00
6lowpan.h
6lowpan: Fix IID format for Bluetooth
2017-04-12 22:02:36 +02:00
act_api.h
net_sched: switch to exit_batch for action pernet ops
2017-12-13 13:58:41 -05:00
addrconf.h
rtnetlink: ipv6: convert remaining users to rtnl_register_module
2017-12-04 13:35:36 -05:00
af_ieee802154.h
af_rxrpc.h
rxrpc: Provide functions for allowing cleaner handling of signals
2017-10-18 11:42:48 +01:00
af_unix.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
af_vsock.h
VSOCK: use TCP state constants for sk_state
2017-10-05 18:44:17 -07:00
ah.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
arp.h
ipv4: Make neigh lookup keys for loopback/point-to-point devices be INADDR_ANY
2018-01-15 14:53:43 -05:00
atmclip.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ax25.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ax88796.h
bond_3ad.h
bond_alb.h
bond_options.h
bonding: Prevent duplicate userspace notification
2017-05-27 18:51:41 -04:00
bonding.h
bonding: remove rtmsg_ifinfo called after bond_lower_state_changed
2017-10-25 10:54:39 +09:00
busy_poll.h
net: fix compilation when busy poll is not enabled
2017-08-11 14:59:24 -07:00
calipso.h
net, calipso: convert calipso_doi.refcount from atomic_t to refcount_t
2017-07-04 22:35:16 +01:00
cfg80211-wext.h
cfg80211.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-01-17 00:10:42 -05:00
cfg802154.h
checksum.h
csum: eliminate sparse warning in remcsum_unadjust()
2017-01-20 12:12:13 -05:00
cipso_ipv4.h
net, ipv4: convert cipso_v4_doi.refcount from atomic_t to refcount_t
2017-07-04 01:29:04 -07:00
cls_cgroup.h
codel.h
codel_impl.h
codel_qdisc.h
compat.h
net: remove compat_sys_*() prototypes from net/compat.h
2018-04-02 20:16:17 +02:00
datalink.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
dcbevent.h
dcbnl.h
devlink.h
mlxsw: spectrum: Fix handling of resource_size_param
2018-02-28 12:32:36 -05:00
dn.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-11-04 09:26:51 +09:00
dn_dev.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
dn_fib.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
dn_neigh.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
dn_nsp.h
net/decnet: Convert timers to use timer_setup()
2017-10-18 12:39:36 +01:00
dn_route.h
decnet: Move dn_next into decnet route structure.
2017-11-30 09:54:25 -05:00
dsa.h
net: dsa: Allow compiling out legacy support
2017-12-07 14:14:54 -05:00
dsfield.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
dst.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-01-29 10:15:51 -05:00
dst_cache.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
dst_metadata.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-11-04 09:26:51 +09:00
dst_ops.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
erspan.h
net: erspan: fix metadata extraction
2018-02-06 11:32:48 -05:00
esp.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ethoc.h
fib_notifier.h
net: Add extack to fib_notifier_info
2017-11-01 11:50:43 +09:00
fib_rules.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
firewire.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
flow.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
flow_dissector.h
tipc: improve link resiliency when rps is activated
2017-11-11 15:36:05 +09:00
fou.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
fq.h
fq: support filtering a given tin
2017-10-11 09:49:34 +02:00
fq_impl.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-10-30 21:09:24 +09:00
garp.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
gen_stats.h
net: sched: add support for TCQ_F_NOLOCK subqueues to sch_mq
2017-12-08 13:32:26 -05:00
genetlink.h
genetlink: fix genlmsg_nlhdr()
2017-11-16 10:49:00 +09:00
geneve.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
gre.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
gro_cells.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
gtp.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
gue.h
fou: fix some member types in guehdr
2017-12-11 14:10:06 -05:00
hwbm.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
icmp.h
ieee80211_radiotap.h
wireless: radiotap: rewrite the radiotap header file
2017-01-25 16:00:33 +01:00
ieee802154_netdev.h
if_inet6.h
net, ipv6: convert ifacaddr6.aca_refcnt from atomic_t to refcount_t
2017-07-04 01:29:04 -07:00
ife.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ila.h
inet6_connection_sock.h
inet: drop ->bind_conflict
2017-01-18 13:04:28 -05:00
inet6_hashtables.h
net: ipv6: add second dif to inet6 socket lookups
2017-08-07 11:39:22 -07:00
inet_common.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
inet_connection_sock.h
vfs: do bulk POLL* -> EPOLL* replacement
2018-02-11 14:34:03 -08:00
inet_ecn.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-11-04 09:26:51 +09:00
inet_frag.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-11-04 09:26:51 +09:00
inet_hashtables.h
inet: Add a 2nd listener hashtable (port+addr)
2017-12-03 10:18:28 -05:00
inet_sock.h
net: sock: replace sk_state_load with inet_sk_state_load and remove sk_state_store
2017-12-20 14:00:25 -05:00
inet_timewait_sock.h
tcp/dccp: avoid one atomic operation for timewait hashdance
2017-12-13 14:33:10 -05:00
inetpeer.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ip.h
ipv4: lock mtu in fnhe when received PMTU < net.ipv4.route.min_pmtu
2018-03-14 13:37:36 -04:00
ip6_checksum.h
ip6_fib.h
ipv6: Add support for non-equal-cost multipath
2018-01-10 15:14:44 -05:00
ip6_route.h
xfrm: reuse uncached_list to track xdsts
2018-02-16 07:03:33 +01:00
ip6_tunnel.h
ip6_gre: add erspan v2 support
2017-12-15 12:34:00 -05:00
ip_fib.h
ipv4: lock mtu in fnhe when received PMTU < net.ipv4.route.min_pmtu
2018-03-14 13:37:36 -04:00
ip_tunnels.h
net: erspan: introduce erspan v2 for ip_gre
2017-12-15 12:34:00 -05:00
ip_vs.h
netfilter: ipvs: Remove useless ipvsh param of frag_safe_skb_hp
2018-01-08 18:01:02 +01:00
ipcomp.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ipconfig.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ipv6.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-01-24 23:44:15 -05:00
ipx.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
iw_handler.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
kcm.h
l3mdev.h
lapb.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
lib80211.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
llc.h
net, llc: convert llc_sap.refcnt from atomic_t to refcount_t
2017-07-04 22:35:15 +01:00
llc_c_ac.h
net: LLC: Convert timers to use timer_setup()
2017-10-25 12:06:25 +09:00
llc_c_ev.h
llc_c_st.h
llc_conn.h
llc: properly handle dev_queue_xmit() return value
2018-03-27 11:56:00 -04:00
llc_if.h
llc_pdu.h
llc_s_ac.h
llc_s_ev.h
llc_s_st.h
llc_sap.h
lwtunnel.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mac80211.h
mac80211: add ieee80211_hw flag for QoS NDP support
2018-03-21 10:56:18 +01:00
mac802154.h
mip6.h
mld.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mpls.h
mpls_iptunnel.h
net: mpls: Increase max number of labels for lwt encap
2017-04-01 20:21:44 -07:00
mrp.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ncsi.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ndisc.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
neighbour.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-11-04 09:26:51 +09:00
net_namespace.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-01-29 10:15:51 -05:00
net_ratelimit.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
netevent.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-11-04 09:26:51 +09:00
netlabel.h
net: convert netlbl_lsm_cache.refcount from atomic_t to refcount_t
2017-07-01 07:39:09 -07:00
netlink.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
netprio_cgroup.h
netrom.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
nexthop.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
nl802154.h
nsh.h
openvswitch: enable NSH support
2017-11-08 16:12:33 +09:00
p8022.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ping.h
pkt_cls.h
pkt_cls: add new tc cls helper to check offload flag and chain index
2018-01-25 21:23:07 -05:00
pkt_sched.h
net: remove prototype of qdisc_lookup_class()
2018-01-16 14:56:54 -05:00
pptp.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
protocol.h
IPv4: early demux can return an error code
2017-10-01 03:55:47 +01:00
psample.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
psnap.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
raw.h
net: ipv4: add second dif to raw socket lookups
2017-08-07 11:39:21 -07:00
rawv6.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
red.h
net_sched: red: Avoid illegal values
2017-12-05 14:37:13 -05:00
regulatory.h
regulatory: add NUL to request alpha2
2018-02-22 20:57:48 +01:00
request_sock.h
tcp: socket option to set TCP fast open key
2017-10-20 13:21:36 +01:00
rose.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
route.h
ipv4: lock mtu in fnhe when received PMTU < net.ipv4.route.min_pmtu
2018-03-14 13:37:36 -04:00
rtnetlink.h
rtnetlink: remove __rtnl_register
2017-12-04 11:32:53 -05:00
sch_generic.h
net: sched, fix OOO packets with pfifo_fast
2018-03-26 12:36:23 -04:00
scm.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
secure_seq.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
seg6.h
ipv6: sr: add support for ip4ip6 encapsulation
2017-08-25 17:10:23 -07:00
seg6_hmac.h
ipv6: sr: add core files for SR HMAC support
2016-11-09 20:40:06 -05:00
slhc_vj.h
smc.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
snmp.h
sock.h
sock_diag: request _diag module only when the family or proto has been registered
2018-03-12 11:03:42 -04:00
sock_reuseport.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
Space.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
stp.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
strparser.h
strparser: Use delayed work instead of timer for msg timeout
2017-10-25 10:37:11 +09:00
switchdev.h
net: bridge: Add/del switchdev object on host join/leave
2017-11-10 13:41:40 +09:00
tcp.h
bpf: sockmap, add sock close() hook to remove socks
2018-02-06 11:39:32 +01:00
tcp_states.h
timewait_sock.h
tipc.h
tipc: improve link resiliency when rps is activated
2017-11-11 15:36:05 +09:00
tls.h
tls: Add support for encryption using async offload accelerator
2018-01-31 10:26:30 -05:00
transp_v6.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
tso.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
tun_proto.h
vxlan: factor out VXLAN-GPE next protocol
2017-08-29 15:16:52 -07:00
udp.h
net: annotate ->poll() instances
2017-11-27 16:20:04 -05:00
udp_tunnel.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
udplite.h
udplite: fix partial checksum initialization
2018-02-16 15:57:42 -05:00
vsock_addr.h
vxlan.h
vxlan: Fix trailing semicolon
2018-01-17 16:07:24 -05:00
wext.h
lift handling of SIOCIW... out of dev_ioctl()
2018-01-24 19:13:45 -05:00
wimax.h
x25.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
x25device.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
xdp.h
xdp/qede: setup xdp_rxq_info and intro xdp_rxq_info_is_reg
2018-01-05 15:21:21 -08:00
xfrm.h
xfrm: Add ESN support for IPSec HW offload
2018-01-18 10:42:59 +01:00