linux/net/sched
David S. Miller e4be7baba8 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says:

====================
pull-request: bpf 2017-11-23

The following pull-request contains BPF updates for your *net* tree.

The main changes are:

1) Several BPF offloading fixes, from Jakub. Among others:

    - Limit offload to cls_bpf and XDP program types only.
    - Move device validation into the driver and don't make
      any assumptions about the device in the classifier due
      to shared blocks semantics.
    - Don't pass offloaded XDP program into the driver when
      it should be run in native XDP instead. Offloaded ones
      are not JITed for the host in such cases.
    - Don't destroy device offload state when moved to
      another namespace.
    - Revert dumping offload info into user space for now,
      since ifindex alone is not sufficient. This will be
      redone properly for bpf-next tree.

2) Fix test_verifier to avoid using bpf_probe_write_user()
   helper in test cases, since it's dumping a warning into
   kernel log which may confuse users when only running tests.
   Switch to use bpf_trace_printk() instead, from Yonghong.

3) Several fixes for correcting ARG_CONST_SIZE_OR_ZERO semantics
   before it becomes uabi, from Gianluca. More specifically:

    - Add a type ARG_PTR_TO_MEM_OR_NULL that is used only
      by bpf_csum_diff(), where the argument is either a
      valid pointer or NULL. The subsequent ARG_CONST_SIZE_OR_ZERO
      then enforces a valid pointer in case of non-0 size
      or a valid pointer or NULL in case of size 0. Given
      that, the semantics for ARG_PTR_TO_MEM in combination
      with ARG_CONST_SIZE_OR_ZERO are now such that in case
      of size 0, the pointer must always be valid and cannot
      be NULL. This fix in semantics allows for bpf_probe_read()
      to drop the recently added size == 0 check in the helper
      that would become part of uabi otherwise once released.
      At the same time we can then fix bpf_probe_read_str() and
      bpf_perf_event_output() to use ARG_CONST_SIZE_OR_ZERO
      instead of ARG_CONST_SIZE in order to fix recently
      reported issues by Arnaldo et al, where LLVM optimizes
      two boundary checks into a single one for unknown
      variables where the verifier looses track of the variable
      bounds and thus rejects valid programs otherwise.

4) A fix for the verifier for the case when it detects
   comparison of two constants where the branch is guaranteed
   to not be taken at runtime. Verifier will rightfully prune
   the exploration of such paths, but we still pass the program
   to JITs, where they would complain about using reserved
   fields, etc. Track such dead instructions and sanitize
   them with mov r0,r0. Rejection is not possible since LLVM
   may generate them for valid C code and doesn't do as much
   data flow analysis as verifier. For bpf-next we might
   implement removal of such dead code and adjust branches
   instead. Fix from Alexei.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-24 02:33:01 +09:00
..
act_api.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-10 10:00:18 +09:00
act_bpf.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-10 10:00:18 +09:00
act_connmark.c Revert "net_sched: hold netns refcnt for each action" 2017-11-09 10:03:09 +09:00
act_csum.c net: accept UFO datagrams from tuntap and packet 2017-11-24 01:37:35 +09:00
act_gact.c Revert "net_sched: hold netns refcnt for each action" 2017-11-09 10:03:09 +09:00
act_ife.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-10 10:00:18 +09:00
act_ipt.c Revert "net_sched: hold netns refcnt for each action" 2017-11-09 10:03:09 +09:00
act_meta_mark.c net sched actions: change IFE modules alias names 2017-10-12 22:13:20 -07:00
act_meta_skbprio.c net sched actions: change IFE modules alias names 2017-10-12 22:13:20 -07:00
act_meta_skbtcindex.c net sched actions: change IFE modules alias names 2017-10-12 22:13:20 -07:00
act_mirred.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-10 10:00:18 +09:00
act_nat.c Revert "net_sched: hold netns refcnt for each action" 2017-11-09 10:03:09 +09:00
act_pedit.c Revert "net_sched: hold netns refcnt for each action" 2017-11-09 10:03:09 +09:00
act_police.c Revert "net_sched: hold netns refcnt for each action" 2017-11-09 10:03:09 +09:00
act_sample.c Revert "net_sched: hold netns refcnt for each action" 2017-11-09 10:03:09 +09:00
act_simple.c Revert "net_sched: hold netns refcnt for each action" 2017-11-09 10:03:09 +09:00
act_skbedit.c Revert "net_sched: hold netns refcnt for each action" 2017-11-09 10:03:09 +09:00
act_skbmod.c Revert "net_sched: hold netns refcnt for each action" 2017-11-09 10:03:09 +09:00
act_tunnel_key.c Revert "net_sched: hold netns refcnt for each action" 2017-11-09 10:03:09 +09:00
act_vlan.c act_vlan: VLAN action rewrite to use RCU lock/unlock and update 2017-11-10 15:32:20 +09:00
cls_api.c net: sched: fix crash when deleting secondary chains 2017-11-24 01:25:37 +09:00
cls_basic.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-10 10:00:18 +09:00
cls_bpf.c bpf: offload: move offload device validation out to the drivers 2017-11-21 00:37:35 +01:00
cls_cgroup.c cls_cgroup: use tcf_exts_get_net() before call_rcu() 2017-11-09 10:03:09 +09:00
cls_flow.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-10 10:00:18 +09:00
cls_flower.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-10 10:00:18 +09:00
cls_fw.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-10 10:00:18 +09:00
cls_matchall.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-10 10:00:18 +09:00
cls_route.c cls_route: use tcf_exts_get_net() before call_rcu() 2017-11-09 10:03:10 +09:00
cls_rsvp6.c
cls_rsvp.c
cls_rsvp.h cls_rsvp: use tcf_exts_get_net() before call_rcu() 2017-11-09 10:03:10 +09:00
cls_tcindex.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-10 10:00:18 +09:00
cls_u32.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-10 10:00:18 +09:00
em_canid.c
em_cmp.c
em_ipset.c
em_meta.c
em_nbyte.c
em_text.c
em_u32.c
ematch.c net: sched: ematch: obtain net pointer from blocks 2017-10-16 21:00:40 +01:00
Kconfig net/sched: Introduce Credit Based Shaper (CBS) qdisc 2017-10-27 09:48:02 -07:00
Makefile Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-04 09:26:51 +09:00
sch_api.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-10-30 21:09:24 +09:00
sch_atm.c net: sched: store Qdisc pointer in struct block 2017-10-16 21:00:40 +01:00
sch_blackhole.c
sch_cbq.c net: sched: mark expected switch fall-throughs 2017-10-22 02:07:08 +01:00
sch_cbs.c net_sch: cbs: Change TC_SETUP_CBS to TC_SETUP_QDISC_CBS 2017-11-08 12:23:38 +09:00
sch_choke.c
sch_codel.c
sch_drr.c net: sched: mark expected switch fall-throughs 2017-10-22 02:07:08 +01:00
sch_dsmark.c net: sched: store Qdisc pointer in struct block 2017-10-16 21:00:40 +01:00
sch_fifo.c
sch_fq_codel.c net: sched: mark expected switch fall-throughs 2017-10-22 02:07:08 +01:00
sch_fq.c
sch_generic.c net: core: introduce mini_Qdisc and eliminate usage of tp->q for clsact fastpath 2017-11-03 21:57:24 +09:00
sch_gred.c
sch_hfsc.c net: sched: mark expected switch fall-throughs 2017-10-22 02:07:08 +01:00
sch_hhf.c
sch_htb.c net: sched: mark expected switch fall-throughs 2017-10-22 02:07:08 +01:00
sch_ingress.c net: core: introduce mini_Qdisc and eliminate usage of tp->q for clsact fastpath 2017-11-03 21:57:24 +09:00
sch_mq.c net/sched: Change behavior of mq select_queue() 2017-10-27 09:41:45 -07:00
sch_mqprio.c net_sch: mqprio: Change TC_SETUP_MQPRIO to TC_SETUP_QDISC_MQPRIO 2017-11-08 12:23:38 +09:00
sch_multiq.c net: sched: mark expected switch fall-throughs 2017-10-22 02:07:08 +01:00
sch_netem.c netem: remove unnecessary 64 bit modulus 2017-11-15 14:14:16 +09:00
sch_pie.c net: sched: Convert timers to use timer_setup() 2017-10-18 12:39:54 +01:00
sch_plug.c
sch_prio.c net: sched: mark expected switch fall-throughs 2017-10-22 02:07:08 +01:00
sch_qfq.c net: sched: mark expected switch fall-throughs 2017-10-22 02:07:08 +01:00
sch_red.c net/sched/sch_red.c: work around gcc-4.4.4 anon union initializer issue 2017-11-13 10:33:07 +09:00
sch_sfb.c net: sched: mark expected switch fall-throughs 2017-10-22 02:07:08 +01:00
sch_sfq.c net: sched: mark expected switch fall-throughs 2017-10-22 02:07:08 +01:00
sch_tbf.c
sch_teql.c