platform/kernel/linux-rpi3.git
6 years agonetfilter: ip6t_rpfilter: provide input interface for route lookup
Vincent Bernat [Sun, 20 May 2018 11:03:38 +0000 (13:03 +0200)]
netfilter: ip6t_rpfilter: provide input interface for route lookup

In commit 47b7e7f82802, this bit was removed at the same time the
RT6_LOOKUP_F_IFACE flag was removed. However, it is needed when
link-local addresses are used, which is a very common case: when
packets are routed, neighbor solicitations are done using link-local
addresses. For example, the following neighbor solicitation is not
matched by "-m rpfilter":

    IP6 fe80::5254:33ff:fe00:1 > ff02::1:ff00:3: ICMP6, neighbor
    solicitation, who has 2001:db8::5254:33ff:fe00:3, length 32

Commit 47b7e7f82802 doesn't quite explain why we shouldn't use
RT6_LOOKUP_F_IFACE in the rpfilter case. I suppose the interface check
later in the function would make it redundant. However, the remaining
of the routing code is using RT6_LOOKUP_F_IFACE when there is no
source address (which matches rpfilter's case with a non-unicast
destination, like with neighbor solicitation).

Signed-off-by: Vincent Bernat <vincent@bernat.im>
Fixes: 47b7e7f82802 ("netfilter: don't set F_IFACE on ipv6 fib lookups")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
6 years agonetfilter: nft_set_rbtree: add timeout support
Pablo Neira Ayuso [Wed, 16 May 2018 20:58:34 +0000 (22:58 +0200)]
netfilter: nft_set_rbtree: add timeout support

Add garbage collection logic to expire elements stored in the rb-tree
representation.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
6 years agonetfilter: make NF_OSF non-visible symbol
Fernando Fernandez Mancera [Tue, 15 May 2018 23:07:58 +0000 (01:07 +0200)]
netfilter: make NF_OSF non-visible symbol

Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
6 years agonetfilter: lift one-nat-hook-only restriction
Florian Westphal [Mon, 14 May 2018 21:46:59 +0000 (23:46 +0200)]
netfilter: lift one-nat-hook-only restriction

This reverts commit f92b40a8b2645
("netfilter: core: only allow one nat hook per hook point"), this
limitation is no longer needed.  The nat core now invokes these
functions and makes sure that hook evaluation stops after a mapping is
created and a null binding is created otherwise.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
6 years agonetfilter: nf_nat: add nat type hooks to nat core
Florian Westphal [Mon, 14 May 2018 21:46:58 +0000 (23:46 +0200)]
netfilter: nf_nat: add nat type hooks to nat core

Currently the packet rewrite and instantiation of nat NULL bindings
happens from the protocol specific nat backend.

Invocation occurs either via ip(6)table_nat or the nf_tables nat chain type.

Invocation looks like this (simplified):
NF_HOOK()
   |
   `---iptable_nat
 |
 `---> nf_nat_l3proto_ipv4 -> nf_nat_packet
               |
          new packet? pass skb though iptables nat chain
                       |
       `---> iptable_nat: ipt_do_table

In nft case, this looks the same (nft_chain_nat_ipv4 instead of
iptable_nat).

This is a problem for two reasons:
1. Can't use iptables nat and nf_tables nat at the same time,
   as the first user adds a nat binding (nf_nat_l3proto_ipv4 adds a
   NULL binding if do_table() did not find a matching nat rule so we
   can detect post-nat tuple collisions).
2. If you use e.g. nft_masq, snat, redir, etc. uses must also register
   an empty base chain so that the nat core gets called fro NF_HOOK()
   to do the reverse translation, which is neither obvious nor user
   friendly.

After this change, the base hook gets registered not from iptable_nat or
nftables nat hooks, but from the l3 nat core.

iptables/nft nat base hooks get registered with the nat core instead:

NF_HOOK()
   |
   `---> nf_nat_l3proto_ipv4 -> nf_nat_packet
|
         new packet? pass skb through iptables/nftables nat chains
                |
+-> iptables_nat: ipt_do_table
        +-> nft nat chain x
        `-> nft nat chain y

The nat core deals with null bindings and reverse translation.
When no mapping exists, it calls the registered nat lookup hooks until
one creates a new mapping.
If both iptables and nftables nat hooks exist, the first matching
one is used (i.e., higher priority wins).

Also, nft users do not need to create empty nat hooks anymore,
nat core always registers the base hooks that take care of reverse/reply
translation.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
6 years agonetfilter: nf_nat: add nat hook register functions to nf_nat
Florian Westphal [Mon, 14 May 2018 21:46:57 +0000 (23:46 +0200)]
netfilter: nf_nat: add nat hook register functions to nf_nat

This adds the infrastructure to register nat hooks with the nat core
instead of the netfilter core.

nat hooks are used to configure nat bindings.  Such hooks are registered
from ip(6)table_nat or by the nftables core when a nat chain is added.

After next patch, nat hooks will be registered with nf_nat instead of
netfilter core.  This allows to use many nat lookup functions at the
same time while doing the real packet rewrite (nat transformation) in
one place.

This change doesn't convert the intended users yet to ease review.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
6 years agonetfilter: core: export raw versions of add/delete hook functions
Florian Westphal [Mon, 14 May 2018 21:46:56 +0000 (23:46 +0200)]
netfilter: core: export raw versions of add/delete hook functions

This will allow the nat core to reuse the nf_hook infrastructure
to maintain nat lookup functions.

The raw versions don't assume a particular hook location, the
functions get added/deleted from the hook blob that is passed to the
functions.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
6 years agonetfilter: nf_tables: allow chain type to override hook register
Florian Westphal [Mon, 14 May 2018 21:46:55 +0000 (23:46 +0200)]
netfilter: nf_tables: allow chain type to override hook register

Will be used in followup patch when nat types no longer
use nf_register_net_hook() but will instead register with the nat core.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
6 years agonetfilter: xtables: allow table definitions not backed by hook_ops
Florian Westphal [Mon, 14 May 2018 21:46:54 +0000 (23:46 +0200)]
netfilter: xtables: allow table definitions not backed by hook_ops

The ip(6)tables nat table is currently receiving skbs from the netfilter
core, after a followup patch skbs will be coming from the netfilter nat
core instead, so the table is no longer backed by normal hook_ops.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
6 years agonetfilter: nf_nat: move common nat code to nat core
Florian Westphal [Mon, 14 May 2018 21:46:53 +0000 (23:46 +0200)]
netfilter: nf_nat: move common nat code to nat core

Copy-pasted, both l3 helpers almost use same code here.
Split out the common part into an 'inet' helper.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
6 years agonetfilter: nft_hash: add map lookups for hashing operations
Laura Garcia Liebana [Thu, 10 May 2018 22:14:48 +0000 (00:14 +0200)]
netfilter: nft_hash: add map lookups for hashing operations

This patch creates new attributes to accept a map as argument and
then perform the lookup with the generated hash accordingly.

Both current hash functions are supported: Jenkins and Symmetric Hash.

Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
6 years agonetfilter: nft_numgen: add map lookups for numgen random operations
Laura Garcia Liebana [Thu, 10 May 2018 22:14:17 +0000 (00:14 +0200)]
netfilter: nft_numgen: add map lookups for numgen random operations

This patch uses the map lookup already included to be applied
for random number generation.

Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
6 years agonetfilter: nf_tables: remove old nf_log based tracing
Florian Westphal [Fri, 11 May 2018 19:55:39 +0000 (21:55 +0200)]
netfilter: nf_tables: remove old nf_log based tracing

nfnetlink tracing is available since nft 0.6 (June 2016).
Remove old nf_log based tracing to avoid rule counter in main loop.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
6 years agonetfilter: fix fallout from xt/nf osf separation
Florian Westphal [Tue, 8 May 2018 08:05:38 +0000 (10:05 +0200)]
netfilter: fix fallout from xt/nf osf separation

Stephen Rothwell says:
  today's linux-next build (x86_64 allmodconfig) produced this warning:
  ./usr/include/linux/netfilter/nf_osf.h:25: found __[us]{8,16,32,64} type without #include <linux/types.h>

Fix that up and also move kernel-private struct out of uapi (it was not
exposed in any released kernel version).

tested via allmodconfig build + make headers_check.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: bfb15f2a95cb ("netfilter: extract Passive OS fingerprint infrastructure from xt_osf")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
6 years agonet: ipv4: ipconfig: fix unused variable
Anders Roxell [Sun, 13 May 2018 19:48:30 +0000 (21:48 +0200)]
net: ipv4: ipconfig: fix unused variable

When CONFIG_PROC_FS isn't set, variable ipconfig_dir isn't used.
net/ipv4/ipconfig.c:167:31: warning: ‘ipconfig_dir’ defined but not used [-Wunused-variable]
 static struct proc_dir_entry *ipconfig_dir;
                               ^~~~~~~~~~~~
Move the declaration of ipconfig_dir inside the CONFIG_PROC_FS ifdef to
fix the warning.

Fixes: c04d2cb2009f ("ipconfig: Write NTP server IPs to /proc/net/ipconfig/ntp_servers")
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
David S. Miller [Sat, 12 May 2018 00:53:22 +0000 (20:53 -0400)]
Merge git://git./linux/kernel/git/davem/net

The bpf syscall and selftests conflicts were trivial
overlapping changes.

The r8169 change involved moving the added mdelay from 'net' into a
different function.

A TLS close bug fix overlapped with the splitting of the TLS state
into separate TX and RX parts.  I just expanded the tests in the bug
fix from "ctx->conf == X" into "ctx->tx_conf == X && ctx->rx_conf
== X".

Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Fri, 11 May 2018 21:14:46 +0000 (14:14 -0700)]
Merge git://git./linux/kernel/git/davem/net

Pull networking fixes from David Miller:

 1) Verify lengths of keys provided by the user is AF_KEY, from Kevin
    Easton.

 2) Add device ID for BCM89610 PHY. Thanks to Bhadram Varka.

 3) Add Spectre guards to some ATM code, courtesy of Gustavo A. R.
    Silva.

 4) Fix infinite loop in NSH protocol code. To Eric Dumazet we are most
    grateful for this fix.

 5) Line up /proc/net/netlink headers properly. This fix from YU Bo, we
    do appreciate.

 6) Use after free in TLS code. Once again we are blessed by the
    honorable Eric Dumazet with this fix.

 7) Fix regression in TLS code causing stalls on partial TLS records.
    This fix is bestowed upon us by Andrew Tomt.

 8) Deal with too small MTUs properly in LLC code, another great gift
    from Eric Dumazet.

 9) Handle cached route flushing properly wrt. MTU locking in ipv4, to
    Hangbin Liu we give thanks for this.

10) Fix regression in SO_BINDTODEVIC handling wrt. UDP socket demux.
    Paolo Abeni, he gave us this.

11) Range check coalescing parameters in mlx4 driver, thank you Moshe
    Shemesh.

12) Some ipv6 ICMP error handling fixes in rxrpc, from our good brother
    David Howells.

13) Fix kexec on mlx5 by freeing IRQs in shutdown path. Daniel Juergens,
    you're the best!

14) Don't send bonding RLB updates to invalid MAC addresses. Debabrata
    Benerjee saved us!

15) Uh oh, we were leaking in udp_sendmsg and ping_v4_sendmsg. The ship
    is now water tight, thanks to Andrey Ignatov.

16) IPSEC memory leak in ixgbe from Colin Ian King, man we've got holes
    everywhere!

17) Fix error path in tcf_proto_create, Jiri Pirko what would we do
    without you!

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (92 commits)
  net sched actions: fix refcnt leak in skbmod
  net: sched: fix error path in tcf_proto_create() when modules are not configured
  net sched actions: fix invalid pointer dereferencing if skbedit flags missing
  ixgbe: fix memory leak on ipsec allocation
  ixgbevf: fix ixgbevf_xmit_frame()'s return type
  ixgbe: return error on unsupported SFP module when resetting
  ice: Set rq_last_status when cleaning rq
  ipv4: fix memory leaks in udp_sendmsg, ping_v4_sendmsg
  mlxsw: core: Fix an error handling path in 'mlxsw_core_bus_device_register()'
  bonding: send learning packets for vlans on slave
  bonding: do not allow rlb updates to invalid mac
  net/mlx5e: Err if asked to offload TC match on frag being first
  net/mlx5: E-Switch, Include VF RDMA stats in vport statistics
  net/mlx5: Free IRQs in shutdown path
  rxrpc: Trace UDP transmission failure
  rxrpc: Add a tracepoint to log ICMP/ICMP6 and error messages
  rxrpc: Fix the min security level for kernel calls
  rxrpc: Fix error reception on AF_INET6 sockets
  rxrpc: Fix missing start of call timeout
  qed: fix spelling mistake: "taskelt" -> "tasklet"
  ...

6 years agoMerge tag 'nfs-for-4.17-2' of git://git.linux-nfs.org/projects/anna/linux-nfs
Linus Torvalds [Fri, 11 May 2018 20:56:43 +0000 (13:56 -0700)]
Merge tag 'nfs-for-4.17-2' of git://git.linux-nfs.org/projects/anna/linux-nfs

Pull NFS client fixes from Anna Schumaker:
 "These patches fix both a possible corruption during NFSoRDMA MR
  recovery, and a sunrpc tracepoint crash.

  Additionally, Trond has a new email address to put in the MAINTAINERS
  file"

* tag 'nfs-for-4.17-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
  Change Trond's email address in MAINTAINERS
  sunrpc: Fix latency trace point crashes
  xprtrdma: Fix list corruption / DMAR errors during MR recovery

6 years agonet sched actions: fix refcnt leak in skbmod
Roman Mashak [Fri, 11 May 2018 18:35:33 +0000 (14:35 -0400)]
net sched actions: fix refcnt leak in skbmod

When application fails to pass flags in netlink TLV when replacing
existing skbmod action, the kernel will leak refcnt:

$ tc actions get action skbmod index 1
total acts 0

        action order 0: skbmod pipe set smac 00:11:22:33:44:55
         index 1 ref 1 bind 0

For example, at this point a buggy application replaces the action with
index 1 with new smac 00:aa:22:33:44:55, it fails because of zero flags,
however refcnt gets bumped:

$ tc actions get actions skbmod index 1
total acts 0

        action order 0: skbmod pipe set smac 00:11:22:33:44:55
         index 1 ref 2 bind 0
$

Tha patch fixes this by calling tcf_idr_release() on existing actions.

Fixes: 86da71b57383d ("net_sched: Introduce skbmod action")
Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge tag 'ceph-for-4.17-rc5' of git://github.com/ceph/ceph-client
Linus Torvalds [Fri, 11 May 2018 20:36:06 +0000 (13:36 -0700)]
Merge tag 'ceph-for-4.17-rc5' of git://github.com/ceph/ceph-client

Pull ceph fixes from Ilya Dryomov:
 "These patches fix two long-standing bugs in the DIO code path, one of
  which is a crash trivially triggerable with splice()"

* tag 'ceph-for-4.17-rc5' of git://github.com/ceph/ceph-client:
  ceph: fix iov_iter issues in ceph_direct_read_write()
  libceph: add osd_req_op_extent_osd_data_bvecs()
  ceph: fix rsize/wsize capping in ceph_direct_read_write()

6 years agonet: phy: DP83TC811: Introduce support for the DP83TC811 phy
Dan Murphy [Fri, 11 May 2018 18:08:19 +0000 (13:08 -0500)]
net: phy: DP83TC811: Introduce support for the DP83TC811 phy

Add support for the DP83811 phy.

The DP83811 supports both rgmii and sgmii interfaces.
There are 2 part numbers for this the DP83TC811R does not
reliably support the SGMII interface but the DP83TC811S will.

There is not a way to differentiate these parts from the
hardware or register set.  So this is controlled via the DT
to indicate which phy mode is required.  Or the part can be
strapped to a certain interface.

Data sheet can be found here:
http://www.ti.com/product/DP83TC811S-Q1/description
http://www.ti.com/product/DP83TC811R-Q1/description

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: sched: fix error path in tcf_proto_create() when modules are not configured
Jiri Pirko [Fri, 11 May 2018 15:45:32 +0000 (17:45 +0200)]
net: sched: fix error path in tcf_proto_create() when modules are not configured

In case modules are not configured, error out when tp->ops is null
and prevent later null pointer dereference.

Fixes: 33a48927c193 ("sched: push TC filter protocol creation into a separate function")
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge tag 'sh-for-4.17-fixes' of git://git.libc.org/linux-sh
Linus Torvalds [Fri, 11 May 2018 20:14:24 +0000 (13:14 -0700)]
Merge tag 'sh-for-4.17-fixes' of git://git.libc.org/linux-sh

Pull arch/sh fixes from Rich Felker:
 "Fixes for critical regressions and a build failure.

  The regressions were introduced in 4.15 and 4.17-rc1 and prevented
  booting on affected systems"

* tag 'sh-for-4.17-fixes' of git://git.libc.org/linux-sh:
  sh: switch to NO_BOOTMEM
  sh: mm: Fix unprotected access to struct device
  sh: fix build failure for J2 cpu with SMP disabled

6 years agocxgb4: avoid schedule while atomic
Ganesh Goudar [Fri, 11 May 2018 13:06:16 +0000 (18:36 +0530)]
cxgb4: avoid schedule while atomic

do not sleep while adding or deleting udp tunnel.

Fixes: 846eac3fccec ("cxgb4: implement udp tunnel callbacks")
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agocxgb4: enable inner header checksum calculation
Ganesh Goudar [Fri, 11 May 2018 13:05:33 +0000 (18:35 +0530)]
cxgb4: enable inner header checksum calculation

set cntrl bits to indicate whether inner header checksum
needs to be calculated whenever the packet is an encapsulated
packet and enable supported encap features.

Fixes: d0a1299c6bf7 ("cxgb4: add support for vxlan segmentation offload")
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agocxgb4: Fix {vxlan/geneve}_port initialization
Arjun Vynipadath [Fri, 11 May 2018 13:04:43 +0000 (18:34 +0530)]
cxgb4: Fix {vxlan/geneve}_port initialization

adapter->rawf_cnt was not initialized, thereby
ndo_udp_tunnel_{add/del} was returning immediately
without initializing {vxlan/geneve}_port.
Also initializes mps_encap_entry refcnt.

Fixes: 846eac3fccec ("cxgb4: implement udp tunnel callbacks")
Signed-off-by: Arjun Vynipadath <arjun@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agocxgb4: Add new T5 device id
Ganesh Goudar [Fri, 11 May 2018 13:07:34 +0000 (18:37 +0530)]
cxgb4: Add new T5 device id

Add 0x50ad device id for new T5 card.

Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Linus Torvalds [Fri, 11 May 2018 20:09:04 +0000 (13:09 -0700)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "There's a small memblock accounting problem when freeing the initrd
  and a Spectre-v2 mitigation for NVIDIA Denver CPUs which just requires
  a match on the CPU ID register.

  Summary:

   - Mitigate Spectre-v2 for NVIDIA Denver CPUs

   - Free memblocks corresponding to freed initrd area"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: capabilities: Add NVIDIA Denver CPU to bp_harden list
  arm64: Add MIDR encoding for NVIDIA CPUs
  arm64: To remove initrd reserved area entry from memblock

6 years agonet: doc: fix spelling mistake: "modrobe.d" -> "modprobe.d"
Tonghao Zhang [Fri, 11 May 2018 09:53:12 +0000 (02:53 -0700)]
net: doc: fix spelling mistake: "modrobe.d" -> "modprobe.d"

Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agobonding: use the skb_get/set_queue_mapping
Tonghao Zhang [Fri, 11 May 2018 09:53:11 +0000 (02:53 -0700)]
bonding: use the skb_get/set_queue_mapping

Use the skb_get_queue_mapping, skb_set_queue_mapping
and skb_rx_queue_recorded for skb queue_mapping in bonding
driver, but not use it directly.

Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agobonding: replace the return value type
Tonghao Zhang [Fri, 11 May 2018 09:53:10 +0000 (02:53 -0700)]
bonding: replace the return value type

The method ndo_start_xmit is defined as returning a
netdev_tx_t, which is a typedef for an enum type,
but the implementation in this driver returns an int.

Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge tag 'powerpc-4.17-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc...
Linus Torvalds [Fri, 11 May 2018 20:07:22 +0000 (13:07 -0700)]
Merge tag 'powerpc-4.17-5' of git://git./linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:
 "One fix for an actual regression, the change to the SYSCALL_DEFINE
  wrapper broke FTRACE_SYSCALLS for us due to a name mismatch. There's
  also another commit to the same code to make sure we match all our
  syscalls with various prefixes.

  And then just one minor build fix, and the removal of an unused
  variable that was removed and then snuck back in due to some rebasing.

  Thanks to: Naveen N. Rao"

* tag 'powerpc-4.17-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/pseries: Fix CONFIG_NUMA=n build
  powerpc/trace/syscalls: Update syscall name matching logic to account for ppc_ prefix
  powerpc/trace/syscalls: Update syscall name matching logic
  powerpc/64: Remove unused paca->soft_enabled

6 years agoMerge tag 'trace-v4.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...
Linus Torvalds [Fri, 11 May 2018 20:04:35 +0000 (13:04 -0700)]
Merge tag 'trace-v4.17-rc4' of git://git./linux/kernel/git/rostedt/linux-trace

Pull tracing fix from Steven Rostedt:
 "Working on some new updates to trace filtering, I noticed that the
  regex_match_front() test was updated to be limited to the size of the
  pattern instead of the full test string.

  But as the test string is not guaranteed to be nul terminated, it
  still needs to consider the size of the test string"

* tag 'trace-v4.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Fix regex_match_front() to not over compare the test string

6 years agoerspan: auto detect truncated ipv6 packets.
William Tu [Fri, 11 May 2018 12:49:47 +0000 (05:49 -0700)]
erspan: auto detect truncated ipv6 packets.

Currently the truncated bit is set only when 1) the mirrored packet
is larger than mtu and 2) the ipv4 packet tot_len is larger than
the actual skb->len.  This patch adds another case for detecting
whether ipv6 packet is truncated or not, by checking the ipv6 header
payload_len and the skb->len.

Reported-by: Xiaoyan Jin <xiaoyanj@vmware.com>
Signed-off-by: William Tu <u9012063@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge branch 'mlxsw-spectrum_span-Two-minor-adjustments'
David S. Miller [Fri, 11 May 2018 20:01:25 +0000 (16:01 -0400)]
Merge branch 'mlxsw-spectrum_span-Two-minor-adjustments'

Ido Schimmel says:

====================
mlxsw: spectrum_span: Two minor adjustments

Petr says:

This patch set fixes a couple of nits in mlxsw's SPAN implementation:
two counts of inaccurate variable name and one count of unsuitable error
code, fixed, respectively, in patches #1 and #2.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agomlxsw: spectrum_span: Use a more fitting error code
Petr Machata [Fri, 11 May 2018 08:57:31 +0000 (11:57 +0300)]
mlxsw: spectrum_span: Use a more fitting error code

ENOENT is suitable when an item is looked for in a collection and can't
be found. The failure here is actually a depletion of a resource, where
ENOBUFS is the more fitting error code.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agomlxsw: spectrum_span: Rename misnamed variable l3edev
Petr Machata [Fri, 11 May 2018 08:57:30 +0000 (11:57 +0300)]
mlxsw: spectrum_span: Rename misnamed variable l3edev

Calling the variable l3edev was relevant when neighbor lookup was the
last stage in the simulated pipeline. Now that mlxsw handles bridges and
vlan devices as well, calling it "L3" is a misnomer.

Thus in mlxsw_sp_span_dmac(), rename to "dev", because that function is
just a service routine where the distinction between tunnel and egress
device isn't necessary.

In mlxsw_sp_span_entry_tunnel_parms_common(), rename to "edev" to
emphasize that the routine traces packet egress.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge branch '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net...
David S. Miller [Fri, 11 May 2018 19:57:23 +0000 (15:57 -0400)]
Merge branch '10GbE' of git://git./linux/kernel/git/jkirsher/net-queue

Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2018-05-11

This series contains fixes to the ice, ixgbe and ixgbevf drivers.

Jeff Shaw provides a fix to ensure rq_last_status gets set, whether or
not the hardware responds with an error in the ice driver.

Emil adds a check for unsupported module during the reset routine for
ixgbe.

Luc Van Oostenryck fixes ixgbevf_xmit_frame() where it was not using the
correct return value (int).

Colin Ian King fixes a potential resource leak in ixgbe, where we were
not freeing ipsec in our cleanup path.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge tag 'rxrpc-fixes-20180510' of git://git.kernel.org/pub/scm/linux/kernel/git...
David S. Miller [Fri, 11 May 2018 19:55:57 +0000 (15:55 -0400)]
Merge tag 'rxrpc-fixes-20180510' of git://git./linux/kernel/git/dhowells/linux-fs

David Howells says:

====================
rxrpc: Fixes

Here are three fixes for AF_RXRPC and two tracepoints that were useful for
finding them:

 (1) Fix missing start of expect-Rx-by timeout on initial packet
     transmission so that calls will time out if the peer doesn't respond.

 (2) Fix error reception on AF_INET6 sockets by using the correct family of
     sockopts on the UDP transport socket.

 (3) Fix setting the minimum security level on kernel calls so that they
     can be encrypted.

 (4) Add a tracepoint to log ICMP/ICMP6 and other error reports from the
     transport socket.

 (5) Add a tracepoint to log UDP sendmsg failure so that we can find out if
     transmission failure occurred on the UDP socket.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet sched actions: fix invalid pointer dereferencing if skbedit flags missing
Roman Mashak [Fri, 11 May 2018 14:55:09 +0000 (10:55 -0400)]
net sched actions: fix invalid pointer dereferencing if skbedit flags missing

When application fails to pass flags in netlink TLV for a new skbedit action,
the kernel results in the following oops:

[    8.307732] BUG: unable to handle kernel paging request at 0000000000021130
[    8.309167] PGD 80000000193d1067 P4D 80000000193d1067 PUD 180e0067 PMD 0
[    8.310595] Oops: 0000 [#1] SMP PTI
[    8.311334] Modules linked in: kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc aesni_intel aes_x86_64 crypto_simd cryptd glue_helper serio_raw
[    8.314190] CPU: 1 PID: 397 Comm: tc Not tainted 4.17.0-rc3+ #357
[    8.315252] RIP: 0010:__tcf_idr_release+0x33/0x140
[    8.316203] RSP: 0018:ffffa0718038f840 EFLAGS: 00010246
[    8.317123] RAX: 0000000000000001 RBX: 0000000000021100 RCX: 0000000000000000
[    8.319831] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000021100
[    8.321181] RBP: 0000000000000000 R08: 000000000004adf8 R09: 0000000000000122
[    8.322645] R10: 0000000000000000 R11: ffffffff9e5b01ed R12: 0000000000000000
[    8.324157] R13: ffffffff9e0d3cc0 R14: 0000000000000000 R15: 0000000000000000
[    8.325590] FS:  00007f591292e700(0000) GS:ffff8fcf5bc40000(0000) knlGS:0000000000000000
[    8.327001] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.327987] CR2: 0000000000021130 CR3: 00000000180e6004 CR4: 00000000001606a0
[    8.329289] Call Trace:
[    8.329735]  tcf_skbedit_init+0xa7/0xb0
[    8.330423]  tcf_action_init_1+0x362/0x410
[    8.331139]  ? try_to_wake_up+0x44/0x430
[    8.331817]  tcf_action_init+0x103/0x190
[    8.332511]  tc_ctl_action+0x11a/0x220
[    8.333174]  rtnetlink_rcv_msg+0x23d/0x2e0
[    8.333902]  ? _cond_resched+0x16/0x40
[    8.334569]  ? __kmalloc_node_track_caller+0x5b/0x2c0
[    8.335440]  ? rtnl_calcit.isra.31+0xf0/0xf0
[    8.336178]  netlink_rcv_skb+0xdb/0x110
[    8.336855]  netlink_unicast+0x167/0x220
[    8.337550]  netlink_sendmsg+0x2a7/0x390
[    8.338258]  sock_sendmsg+0x30/0x40
[    8.338865]  ___sys_sendmsg+0x2c5/0x2e0
[    8.339531]  ? pagecache_get_page+0x27/0x210
[    8.340271]  ? filemap_fault+0xa2/0x630
[    8.340943]  ? page_add_file_rmap+0x108/0x200
[    8.341732]  ? alloc_set_pte+0x2aa/0x530
[    8.342573]  ? finish_fault+0x4e/0x70
[    8.343332]  ? __handle_mm_fault+0xbc1/0x10d0
[    8.344337]  ? __sys_sendmsg+0x53/0x80
[    8.345040]  __sys_sendmsg+0x53/0x80
[    8.345678]  do_syscall_64+0x4f/0x100
[    8.346339]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[    8.347206] RIP: 0033:0x7f591191da67
[    8.347831] RSP: 002b:00007fff745abd48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[    8.349179] RAX: ffffffffffffffda RBX: 00007fff745abe70 RCX: 00007f591191da67
[    8.350431] RDX: 0000000000000000 RSI: 00007fff745abdc0 RDI: 0000000000000003
[    8.351659] RBP: 000000005af35251 R08: 0000000000000001 R09: 0000000000000000
[    8.352922] R10: 00000000000005f1 R11: 0000000000000246 R12: 0000000000000000
[    8.354183] R13: 00007fff745afed0 R14: 0000000000000001 R15: 00000000006767c0
[    8.355400] Code: 41 89 d4 53 89 f5 48 89 fb e8 aa 20 fd ff 85 c0 0f 84 ed 00
00 00 48 85 db 0f 84 cf 00 00 00 40 84 ed 0f 85 cd 00 00 00 45 84 e4 <8b> 53 30
74 0d 85 d2 b8 ff ff ff ff 0f 8f b3 00 00 00 8b 43 2c
[    8.358699] RIP: __tcf_idr_release+0x33/0x140 RSP: ffffa0718038f840
[    8.359770] CR2: 0000000000021130
[    8.360438] ---[ end trace 60c66be45dfc14f0 ]---

The caller calls action's ->init() and passes pointer to "struct tc_action *a",
which later may be initialized to point at the existing action, otherwise
"struct tc_action *a" is still invalid, and therefore dereferencing it is an
error as happens in tcf_idr_release, where refcnt is decremented.

So in case of missing flags tcf_idr_release must be called only for
existing actions.

v2:
    - prepare patch for net tree

Fixes: 5e1567aeb7fe ("net sched: skbedit action fix late binding")
Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge tag 'for-linus-4.17-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 11 May 2018 19:30:34 +0000 (12:30 -0700)]
Merge tag 'for-linus-4.17-rc5-tag' of git://git./linux/kernel/git/xen/tip

Pull xen fix from Juergen Gross:
 "One fix for the kernel running as a fully virtualized guest using PV
  drivers on old Xen hypervisor versions"

* tag 'for-linus-4.17-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  x86/xen: Reset VCPU0 info pointer after shared_info remap

6 years agoixgbe: fix memory leak on ipsec allocation
Colin Ian King [Wed, 9 May 2018 13:58:48 +0000 (14:58 +0100)]
ixgbe: fix memory leak on ipsec allocation

The error clean up path kfree's adapter->ipsec and should be
instead kfree'ing ipsec. Fix this.  Also, the err1 error exit path
does not need to kfree ipsec because this failure path was for
the failed allocation of ipsec.

Detected by CoverityScan, CID#146424 ("Resource Leak")

Fixes: 63a67fe229ea ("ixgbe: add ipsec offload add and remove SA")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Shannon Nelson <shannon.nelson@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
6 years agoixgbevf: fix ixgbevf_xmit_frame()'s return type
Luc Van Oostenryck [Tue, 24 Apr 2018 13:16:48 +0000 (15:16 +0200)]
ixgbevf: fix ixgbevf_xmit_frame()'s return type

The method ndo_start_xmit() is defined as returning an 'netdev_tx_t',
which is a typedef for an enum type, but the implementation in this
driver returns an 'int'.

Fix this by returning 'netdev_tx_t' in this driver too.

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
6 years agoixgbe: return error on unsupported SFP module when resetting
Emil Tantilov [Fri, 20 Apr 2018 00:06:57 +0000 (17:06 -0700)]
ixgbe: return error on unsupported SFP module when resetting

Add check for unsupported module and return the error code.
This fixes a Coverity hit due to unused return status from setup_sfp.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
6 years agoice: Set rq_last_status when cleaning rq
Jeff Shaw [Wed, 18 Apr 2018 18:23:27 +0000 (11:23 -0700)]
ice: Set rq_last_status when cleaning rq

Prior to this commit, the rq_last_status was only set when hardware
responded with an error. This leads to rq_last_status being invalid
in the future when hardware eventually responds without error. This
commit resolves the issue by unconditionally setting rq_last_status
with the value returned in the descriptor.

Fixes: 940b61af02f4 ("ice: Initialize PF and setup miscellaneous
interrupt")

Signed-off-by: Jeff Shaw <jeffrey.b.shaw@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
6 years agoChange Trond's email address in MAINTAINERS
Trond Myklebust [Fri, 11 May 2018 18:13:57 +0000 (14:13 -0400)]
Change Trond's email address in MAINTAINERS

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
6 years agosh: switch to NO_BOOTMEM
Rob Herring [Fri, 11 May 2018 13:45:59 +0000 (08:45 -0500)]
sh: switch to NO_BOOTMEM

Commit 0fa1c579349f ("of/fdt: use memblock_virt_alloc for early alloc")
inadvertently switched the DT unflattening allocations from memblock to
bootmem which doesn't work because the unflattening happens before
bootmem is initialized. Swapping the order of bootmem init and
unflattening could also fix this, but removing bootmem is desired. So
enable NO_BOOTMEM on SH like other architectures have done.

Fixes: 0fa1c579349f ("of/fdt: use memblock_virt_alloc for early alloc")
Reported-by: Rich Felker <dalias@libc.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rich Felker <dalias@libc.org>
6 years agommap: introduce sane default mmap limits
Linus Torvalds [Fri, 11 May 2018 16:52:01 +0000 (09:52 -0700)]
mmap: introduce sane default mmap limits

The internal VM "mmap()" interfaces are based on the mmap target doing
everything using page indexes rather than byte offsets, because
traditionally (ie 32-bit) we had the situation that the byte offset
didn't fit in a register.  So while the mmap virtual address was limited
by the word size of the architecture, the backing store was not.

So we're basically passing "pgoff" around as a page index, in order to
be able to describe backing store locations that are much bigger than
the word size (think files larger than 4GB etc).

But while this all makes a ton of sense conceptually, we've been dogged
by various drivers that don't really understand this, and internally
work with byte offsets, and then try to work with the page index by
turning it into a byte offset with "pgoff << PAGE_SHIFT".

Which obviously can overflow.

Adding the size of the mapping to it to get the byte offset of the end
of the backing store just exacerbates the problem, and if you then use
this overflow-prone value to check various limits of your device driver
mmap capability, you're just setting yourself up for problems.

The correct thing for drivers to do is to do their limit math in page
indices, the way the interface is designed.  Because the generic mmap
code _does_ test that the index doesn't overflow, since that's what the
mmap code really cares about.

HOWEVER.

Finding and fixing various random drivers is a sisyphean task, so let's
just see if we can just make the core mmap() code do the limiting for
us.  Realistically, the only "big" backing stores we need to care about
are regular files and block devices, both of which are known to do this
properly, and which have nice well-defined limits for how much data they
can access.

So let's special-case just those two known cases, and then limit other
random mmap users to a backing store that still fits in "unsigned long".
Realistically, that's not much of a limit at all on 64-bit, and on
32-bit architectures the only worry might be the GPU drivers, which can
have big physical address spaces.

To make it possible for drivers like that to say that they are 64-bit
clean, this patch does repurpose the "FMODE_UNSIGNED_OFFSET" bit in the
file flags to allow drivers to mark their file descriptors as safe in
the full 64-bit mmap address space.

[ The timing for doing this is less than optimal, and this should really
  go in a merge window. But realistically, this needs wide testing more
  than it needs anything else, and being main-line is the only way to do
  that.

  So the earlier the better, even if it's outside the proper development
  cycle        - Linus ]

Cc: Kees Cook <keescook@chromium.org>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Willy Tarreau <w@1wt.eu>
Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
6 years agoMerge tag 'pm-4.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Linus Torvalds [Fri, 11 May 2018 16:49:02 +0000 (09:49 -0700)]
Merge tag 'pm-4.17-rc5' of git://git./linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These fix two PCI power management regressions from the 4.13 cycle and
  one cpufreq schedutil governor bug introduced during the 4.12 cycle,
  drop a stale comment from the schedutil code and fix two mistakes in
  docs.

  Specifics:

   - Restore device_may_wakeup() check in pci_enable_wake() removed
     inadvertently during the 4.13 cycle to prevent systems from drawing
     excessive power when suspended or off, among other things (Rafael
     Wysocki).

   - Fix pci_dev_run_wake() to properly handle devices that only can
     signal PME# when in the D3cold power state (Kai Heng Feng).

   - Fix the schedutil cpufreq governor to avoid using UINT_MAX as the
     new CPU frequency in some cases due to a missing check (Rafael
     Wysocki).

   - Remove a stale comment regarding worker kthreads from the schedutil
     cpufreq governor (Juri Lelli).

   - Fix a copy-paste mistake in the intel_pstate driver documentation
     (Juri Lelli).

   - Fix a typo in the system sleep states documentation (Jonathan
     Neuschäfer)"

* tag 'pm-4.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PCI / PM: Check device_may_wakeup() in pci_enable_wake()
  PCI / PM: Always check PME wakeup capability for runtime wakeup support
  cpufreq: schedutil: Avoid using invalid next_freq
  cpufreq: schedutil: remove stale comment
  PM: docs: intel_pstate: fix Active Mode w/o HWP paragraph
  PM: docs: sleep-states: Fix a typo ("includig")

6 years agoMerge tag 'mtd/fixes-for-4.17-rc5' of git://git.infradead.org/linux-mtd
Linus Torvalds [Fri, 11 May 2018 16:46:14 +0000 (09:46 -0700)]
Merge tag 'mtd/fixes-for-4.17-rc5' of git://git.infradead.org/linux-mtd

Pull mtd fixes from Boris Brezillon:

 - make nand_soft_waitrdy() wait tWB before polling the status REG

 - fix BCH write in the the Marvell NAND controller driver

 - fix wrong picosec to msec conversion in the Marvell NAND controller
   driver

 - fix DMA handling in the TI OneNAND controllre driver

* tag 'mtd/fixes-for-4.17-rc5' of git://git.infradead.org/linux-mtd:
  mtd: rawnand: Make sure we wait tWB before polling the STATUS reg
  mtd: rawnand: marvell: fix command xtype in BCH write hook
  mtd: rawnand: marvell: pass ms delay to wait_op
  mtd: onenand: omap2: Disable DMA for HIGHMEM buffers

6 years agoudp: avoid refcount_t saturation in __udp_gso_segment()
Eric Dumazet [Fri, 11 May 2018 02:07:13 +0000 (19:07 -0700)]
udp: avoid refcount_t saturation in __udp_gso_segment()

For some reason, Willem thought that the issue we fixed for TCP
in commit 7ec318feeed1 ("tcp: gso: avoid refcount_t warning from
tcp_gso_segment()") was not relevant for UDP GSO.

But syzbot found its way.

refcount_t: saturated; leaking memory.
WARNING: CPU: 0 PID: 10261 at lib/refcount.c:78 refcount_add_not_zero+0x2d4/0x320 lib/refcount.c:78
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 10261 Comm: syz-executor5 Not tainted 4.17.0-rc3+ #38
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1b9/0x294 lib/dump_stack.c:113
 panic+0x22f/0x4de kernel/panic.c:184
 __warn.cold.8+0x163/0x1b3 kernel/panic.c:536
 report_bug+0x252/0x2d0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 do_error_trap+0x1de/0x490 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:315
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:992
RIP: 0010:refcount_add_not_zero+0x2d4/0x320 lib/refcount.c:78
RSP: 0018:ffff880196db6b90 EFLAGS: 00010282
RAX: 0000000000000026 RBX: 00000000ffffff01 RCX: ffffc900040d9000
RDX: 0000000000004a29 RSI: ffffffff8160f6f1 RDI: ffff880196db66f0
RBP: ffff880196db6c78 R08: ffff8801b33d6740 R09: 0000000000000002
R10: ffff8801b33d6740 R11: 0000000000000000 R12: 0000000000000000
R13: 00000000ffffffff R14: ffff880196db6c50 R15: 0000000000020101
 refcount_add+0x1b/0x70 lib/refcount.c:102
 __udp_gso_segment+0xaa5/0xee0 net/ipv4/udp_offload.c:272
 udp4_ufo_fragment+0x592/0x7a0 net/ipv4/udp_offload.c:301
 inet_gso_segment+0x639/0x12b0 net/ipv4/af_inet.c:1342
 skb_mac_gso_segment+0x3ad/0x720 net/core/dev.c:2792
 __skb_gso_segment+0x3bb/0x870 net/core/dev.c:2865
 skb_gso_segment include/linux/netdevice.h:4050 [inline]
 validate_xmit_skb+0x54d/0xd90 net/core/dev.c:3122
 __dev_queue_xmit+0xbf8/0x34c0 net/core/dev.c:3579
 dev_queue_xmit+0x17/0x20 net/core/dev.c:3620
 neigh_direct_output+0x15/0x20 net/core/neighbour.c:1401
 neigh_output include/net/neighbour.h:483 [inline]
 ip_finish_output2+0xa5f/0x1840 net/ipv4/ip_output.c:229
 ip_finish_output+0x828/0xf80 net/ipv4/ip_output.c:317
 NF_HOOK_COND include/linux/netfilter.h:277 [inline]
 ip_output+0x21b/0x850 net/ipv4/ip_output.c:405
 dst_output include/net/dst.h:444 [inline]
 ip_local_out+0xc5/0x1b0 net/ipv4/ip_output.c:124
 ip_send_skb+0x40/0xe0 net/ipv4/ip_output.c:1434
 udp_send_skb.isra.37+0x5eb/0x1000 net/ipv4/udp.c:825
 udp_push_pending_frames+0x5c/0xf0 net/ipv4/udp.c:853
 udp_v6_push_pending_frames+0x380/0x3e0 net/ipv6/udp.c:1105
 udp_lib_setsockopt+0x59a/0x600 net/ipv4/udp.c:2403
 udpv6_setsockopt+0x95/0xa0 net/ipv6/udp.c:1447
 sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:3046
 __sys_setsockopt+0x1bd/0x390 net/socket.c:1903
 __do_sys_setsockopt net/socket.c:1914 [inline]
 __se_sys_setsockopt net/socket.c:1911 [inline]
 __x64_sys_setsockopt+0xbe/0x150 net/socket.c:1911
 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Fixes: ad405857b174 ("udp: better wmem accounting on gso")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Cc: Alexander Duyck <alexander.h.duyck@intel.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge tag 'mlx5-fixes-2018-05-10' of git://git.kernel.org/pub/scm/linux/kernel/git...
David S. Miller [Fri, 11 May 2018 16:26:29 +0000 (12:26 -0400)]
Merge tag 'mlx5-fixes-2018-05-10' of git://git./linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
Mellanox, mlx5 fixes 2018-05-10

the following series includes some fixes for mlx5 core driver.
Please pull and let me know if there's any problem.

For -stable v4.5
("net/mlx5: E-Switch, Include VF RDMA stats in vport statistics")

For -stable v4.10
("net/mlx5e: Err if asked to offload TC match on frag being first")
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agotcp: switch pacing timer to softirq based hrtimer
Eric Dumazet [Thu, 10 May 2018 21:59:43 +0000 (14:59 -0700)]
tcp: switch pacing timer to softirq based hrtimer

linux-4.16 got support for softirq based hrtimers.
TCP can switch its pacing hrtimer to this variant, since this
avoids going through a tasklet and some atomic operations.

pacing timer logic looks like other (jiffies based) tcp timers.

v2: use hrtimer_try_to_cancel() in tcp_clear_xmit_timers()
    to correctly release reference on socket if needed.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge tag 'drm-fixes-for-v4.17-rc5' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Fri, 11 May 2018 16:18:02 +0000 (09:18 -0700)]
Merge tag 'drm-fixes-for-v4.17-rc5' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes from Dave Airlie:
 "nouveau, amdgpu, i915, vc4, omap, exynos and atomic fixes.

  As last week seemed a bit slow, we got a few more fixes this week.

  The main stuff is two weeks of fixes for amdgpu, some missing bits of
  vega12 atom firmware support were added, and some power management
  fixes.

  Nouveau got two regression fixes for an DP MST deadlock and a random
  oops fix.

  i915 got an LVDS panel timeout fix 2 WARN fixes.

  exynos fixed a pagefault issue in the mixer driver.

  vc4 has an oops fix.

  omap had a bunch of uninit var and error-checking fixes. Two atomic
  modesetting state fixes.

  One minor agp cleanup patch"

* tag 'drm-fixes-for-v4.17-rc5' of git://people.freedesktop.org/~airlied/linux: (30 commits)
  drm/amd/pp: Fix performance drop on Fiji
  drm/nouveau: Fix deadlock in nv50_mstm_register_connector()
  drm/nouveau/ttm: don't dereference nvbo::cli, it can outlive client
  agp: uninorth: make two functions static
  drm/amd/pp: Refine the output of pp_power_profile_mode on VI
  drm/amdgpu: Switch to interruptable wait to recover from ring hang.
  drm/ttm: Use GFP_TRANSHUGE_LIGHT for allocating huge pages
  drm/amd/display: Use kvzalloc for potentially large allocations
  drm/amd/display: Don't return ddc result and read_bytes in same return value
  drm/amd/display: Add get_firmware_info_v3_2 for VG12
  drm/amd: Add BIOS smu_info v3_3 required struct def.
  drm/amd/display: Add VG12 ASIC IDs
  drm/vc4: Fix scaling of uni-planar formats
  drm/exynos: hdmi: avoid duplicating drm_bridge_attach
  drm/i915: Fix drm:intel_enable_lvds ERROR message in kernel log
  drm/i915: Correctly populate user mode h/vdisplay with pipe src size during readout
  drm/i915: Adjust eDP's logical vco in a reliable place.
  drm/bridge/sii8620: add Kconfig dependency on extcon
  drm/omap: handle alloc failures in omap_connector
  drm/omap: add missing linefeeds to prints
  ...

6 years agoMerge branch 'dsa-Plug-in-PHYLINK-support'
David S. Miller [Fri, 11 May 2018 16:03:06 +0000 (12:03 -0400)]
Merge branch 'dsa-Plug-in-PHYLINK-support'

Florian Fainelli says:

====================
net: dsa: Plug in PHYLINK support

This patch series adds PHYLINK support to DSA which is necessary to support more
complex PHY and pluggable modules setups.

Patch series can be found here:

https://github.com/ffainelli/linux/commits/dsa-phylink-v2

This was tested on:

- dsa-loop
- bcm_sf2
- mv88e6xxx
- b53

With a variety of test cases:
- internal & external MDIO PHYs
- MoCA with link notification through interrupt/MMIO register
- built-in PHYs
- ifconfig up/down for several cycles works
- bind/unbind of the drivers

Changes in v2:

- fixed link configuration for mv88e6xxx (Andrew) after introducing polling

This is technically v2 of what was posted back in March 2018, changes from last
time:

- fixed probe/remove of drivers
- fixed missing gpiod_put() for link GPIOs
- fixed polling of link GPIOs (Russell I would need your SoB on the patch you
  provided offline initially, added some modifications to it)
- tested across a wider set of platforms

And everything should still work as expected. Please be aware of the following:

- switch drivers (like bcm_sf2) which may have user-facing network ports using
  fixed links would need to implement phylink_mac_ops to remain functional.
  PHYLINK does not create a phy_device for fixed links, therefore our
  call to adjust_link() from phylink_mac_link_{up,down} would not be calling
  into the driver. This *should not* affect CPU/DSA ports which are configured
  through adjust_link() but have no network devices

- support for SFP/SFF is now possible, but switch drivers will still need some
  modifications to properly support those, including, but not limited to using
  the correct binding information. This will be submitted on top of this series

Please do test on your respective platforms/switches and let me know if you
find any issues, hopefully everything still works like before.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: dsa: bcm_sf2: Get rid of PHYLIB functions
Florian Fainelli [Thu, 10 May 2018 20:17:37 +0000 (13:17 -0700)]
net: dsa: bcm_sf2: Get rid of PHYLIB functions

Now that we have converted the bcm_sf2 driver to implement PHYLINK MAC
operations, we can remove the PHYLIB callbacks: adjust_link() and
fixed_link_update() which are no longer called by DSA.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: dsa: Plug in PHYLINK support
Florian Fainelli [Thu, 10 May 2018 20:17:36 +0000 (13:17 -0700)]
net: dsa: Plug in PHYLINK support

Add support for PHYLINK within the DSA subsystem in order to support more
complex devices such as pluggable (SFP) and non-pluggable (SFF) modules, 10G
PHYs, and traditional PHYs. Using PHYLINK allows us to drop some amount of
complexity we had while probing fixed and non-fixed PHYs using Device Tree.

Because PHYLINK separates the Ethernet MAC/port configuration into different
stages, we let switch drivers implement those, and for now, we maintain
functionality by calling dsa_slave_adjust_link() during
phylink_mac_link_{up,down} which provides semantically equivalent steps.

Drivers willing to take advantage of PHYLINK should implement the phylink_mac_*
operations that DSA wraps.

We cannot quite remove the adjust_link() callback just yet, because a number of
drivers rely on that for configuring their "CPU" and "DSA" ports, this is done
dsa_port_setup_phy_of() and dsa_port_fixed_link_register_of() still.

Drivers that utilize fixed links for user-facing ports (e.g: bcm_sf2) will need
to implement phylink_mac_ops from now on to preserve functionality, since PHYLINK
*does not* create a phy_device instance for fixed links.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: dsa: mv88e6xxx: add PHYLINK support
Russell King [Thu, 10 May 2018 20:17:35 +0000 (13:17 -0700)]
net: dsa: mv88e6xxx: add PHYLINK support

Add rudimentary phylink support to mv88e6xxx. This allows the driver
using user ports with fixed links to keep operating normally. User ports
with normal PHYs are not affected since the switch automatically manages
their link parameters. User facing ports which use a SFP/SFF with a
non-fixed link mode might require a call to phylink_mac_change() to
operate properly.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
[Andrew: fixed link setting after adding link polling]
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
[florian: expand commit message]
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: dsa: Eliminate dsa_slave_get_link()
Florian Fainelli [Thu, 10 May 2018 20:17:34 +0000 (13:17 -0700)]
net: dsa: Eliminate dsa_slave_get_link()

Since we use PHYLIB to manage the per-port link indication, this will
also be reflected correctly in the network device's carrier state, so we
can use ethtool_op_get_link() instead.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: dsa: bcm_sf2: Implement phylink_mac_ops
Florian Fainelli [Thu, 10 May 2018 20:17:33 +0000 (13:17 -0700)]
net: dsa: bcm_sf2: Implement phylink_mac_ops

Make the bcm_sf2 driver implement phylink_mac_ops since it needs to
support a wide variety of network interfaces: internal & external MDIO
PHYs, fixed PHYs, MoCA with MMIO link status.

A large amount of what needs to be done already exists under
bcm_sf2_sw_adjust_link() so we are essentially breaking this down into
the necessary operation for PHYLINK to work: mac_config, mac_link_up,
mac_link_down and validate. We can now entirely get rid of most of what
fixed_link_update() provided because only the link information is actually
necessary. We still have to force DUPLEX_FULL for legacy Device Tree bindings
that did not specify that before.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: dsa: Add PHYLINK switch operations
Florian Fainelli [Thu, 10 May 2018 20:17:32 +0000 (13:17 -0700)]
net: dsa: Add PHYLINK switch operations

In preparation for adding support for PHYLINK within DSA, define a number of
operations that we will need and that switch drivers can start implementing.
Proper integration with PHYLINK will follow in subsequent patches.

We start selecting PHYLINK (which implies PHYLIB) in net/dsa/Kconfig
such that drivers can be guaranteed that this dependency is properly
taken care of and can start referencing PHYLINK helper functions without
requiring stubs or anything.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: phy: phylink: Poll link GPIOs
Russell King [Thu, 10 May 2018 20:17:31 +0000 (13:17 -0700)]
net: phy: phylink: Poll link GPIOs

When using a fixed link with a link GPIO, we need to poll that GPIO to
determine link state changes. This is consistent with what fixed_phy.c does.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: phy: phylink: Release link GPIO
Florian Fainelli [Thu, 10 May 2018 20:17:30 +0000 (13:17 -0700)]
net: phy: phylink: Release link GPIO

We are not releasing the link GPIO descriptor with gpiod_put() which results in
subsequent probing to get -EBUSY when calling fwnode_get_named_gpiod(). Fix this
by doing the release in phylink_destroy().

Fixes: 9525ae83959b ("phylink: add phylink infrastructure")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: phy: phylink: Use gpiod_get_value_cansleep()
Florian Fainelli [Thu, 10 May 2018 20:17:29 +0000 (13:17 -0700)]
net: phy: phylink: Use gpiod_get_value_cansleep()

The GPIO provider for the link GPIO line might require the use of the
_cansleep() API, utilize that. This is safe to do since we run in workqueue
context.

Fixes: 9525ae83959b ("phylink: add phylink infrastructure")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoipv4: fix memory leaks in udp_sendmsg, ping_v4_sendmsg
Andrey Ignatov [Thu, 10 May 2018 17:59:34 +0000 (10:59 -0700)]
ipv4: fix memory leaks in udp_sendmsg, ping_v4_sendmsg

Fix more memory leaks in ip_cmsg_send() callers. Part of them were fixed
earlier in 919483096bfe.

* udp_sendmsg one was there since the beginning when linux sources were
  first added to git;
* ping_v4_sendmsg one was copy/pasted in c319b4d76b9e.

Whenever return happens in udp_sendmsg() or ping_v4_sendmsg() IP options
have to be freed if they were allocated previously.

Add label so that future callers (if any) can use it instead of kfree()
before return that is easy to forget.

Fixes: c319b4d76b9e (net: ipv4: add IPPROTO_ICMP socket kind)
Signed-off-by: Andrey Ignatov <rdna@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agomlxsw: core: Fix an error handling path in 'mlxsw_core_bus_device_register()'
Christophe JAILLET [Thu, 10 May 2018 11:26:16 +0000 (13:26 +0200)]
mlxsw: core: Fix an error handling path in 'mlxsw_core_bus_device_register()'

Resources are not freed in the reverse order of the allocation.
Labels are also mixed-up.

Fix it and reorder code and labels in the error handling path of
'mlxsw_core_bus_device_register()'

Fixes: ef3116e5403e ("mlxsw: spectrum: Register KVD resources with devlink")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge branch 'bonding-bug-fixes-and-regressions'
David S. Miller [Fri, 11 May 2018 15:50:41 +0000 (11:50 -0400)]
Merge branch 'bonding-bug-fixes-and-regressions'

Debabrata Banerjee says:

====================
bonding: bug fixes and regressions

Fixes to bonding driver for balance-alb mode, suitable for stable.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agobonding: send learning packets for vlans on slave
Debabrata Banerjee [Wed, 9 May 2018 23:32:11 +0000 (19:32 -0400)]
bonding: send learning packets for vlans on slave

There was a regression at some point from the intended functionality of
commit f60c3704e87d ("bonding: Fix alb mode to only use first level
vlans.")

Given the return value vlan_get_encap_level() we need to store the nest
level of the bond device, and then compare the vlan's encap level to
this. Without this, this check always fails and learning packets are
never sent.

In addition, this same commit caused a regression in the behavior of
balance_alb, which requires learning packets be sent for all interfaces
using the slave's mac in order to load balance properly. For vlan's
that have not set a user mac, we can send after checking one bit.
Otherwise we need send the set mac, albeit defeating rx load balancing
for that vlan.

Signed-off-by: Debabrata Banerjee <dbanerje@akamai.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agobonding: do not allow rlb updates to invalid mac
Debabrata Banerjee [Wed, 9 May 2018 23:32:10 +0000 (19:32 -0400)]
bonding: do not allow rlb updates to invalid mac

Make sure multicast, broadcast, and zero mac's cannot be the output of rlb
updates, which should all be directed arps. Receive load balancing will be
collapsed if any of these happen, as the switch will broadcast.

Signed-off-by: Debabrata Banerjee <dbanerje@akamai.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agotracing: Fix regex_match_front() to not over compare the test string
Steven Rostedt (VMware) [Wed, 9 May 2018 15:59:32 +0000 (11:59 -0400)]
tracing: Fix regex_match_front() to not over compare the test string

The regex match function regex_match_front() in the tracing filter logic,
was fixed to test just the pattern length from testing the entire test
string. That is, it went from strncmp(str, r->pattern, len) to
strcmp(str, r->pattern, r->len).

The issue is that str is not guaranteed to be nul terminated, and if r->len
is greater than the length of str, it can access more memory than is
allocated.

The solution is to add a simple test if (len < r->len) return 0.

Cc: stable@vger.kernel.org
Fixes: 285caad415f45 ("tracing/filters: Fix MATCH_FRONT_ONLY filter matching")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
6 years agoMerge branches 'pm-pci' and 'pm-docs'
Rafael J. Wysocki [Fri, 11 May 2018 13:17:18 +0000 (15:17 +0200)]
Merge branches 'pm-pci' and 'pm-docs'

* pm-pci:
  PCI / PM: Check device_may_wakeup() in pci_enable_wake()
  PCI / PM: Always check PME wakeup capability for runtime wakeup support

* pm-docs:
  PM: docs: intel_pstate: fix Active Mode w/o HWP paragraph
  PM: docs: sleep-states: Fix a typo ("includig")

6 years agocompat: fix 4-byte infoleak via uninitialized struct field
Jann Horn [Fri, 11 May 2018 00:19:01 +0000 (02:19 +0200)]
compat: fix 4-byte infoleak via uninitialized struct field

Commit 3a4d44b61625 ("ntp: Move adjtimex related compat syscalls to
native counterparts") removed the memset() in compat_get_timex().  Since
then, the compat adjtimex syscall can invoke do_adjtimex() with an
uninitialized ->tai.

If do_adjtimex() doesn't write to ->tai (e.g.  because the arguments are
invalid), compat_put_timex() then copies the uninitialized ->tai field
to userspace.

Fix it by adding the memset() back.

Fixes: 3a4d44b61625 ("ntp: Move adjtimex related compat syscalls to native counterparts")
Signed-off-by: Jann Horn <jannh@google.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
6 years agoMerge branch 'drm-fixes-4.17' of git://people.freedesktop.org/~agd5f/linux into drm...
Dave Airlie [Fri, 11 May 2018 00:37:07 +0000 (10:37 +1000)]
Merge branch 'drm-fixes-4.17' of git://people.freedesktop.org/~agd5f/linux into drm-fixes

Single amdgpu regression fix

* 'drm-fixes-4.17' of git://people.freedesktop.org/~agd5f/linux:
  drm/amd/pp: Fix performance drop on Fiji

6 years agonet/mlx5e: Err if asked to offload TC match on frag being first
Roi Dayan [Thu, 22 Mar 2018 16:51:37 +0000 (18:51 +0200)]
net/mlx5e: Err if asked to offload TC match on frag being first

The HW doesn't support matching on frag first/later, return error if we are
asked to offload that.

Fixes: 3f7d0eb42d59 ("net/mlx5e: Offload TC matching on packets being IP fragments")
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
6 years agonet/mlx5: E-Switch, Include VF RDMA stats in vport statistics
Adi Nissim [Wed, 25 Apr 2018 08:21:32 +0000 (11:21 +0300)]
net/mlx5: E-Switch, Include VF RDMA stats in vport statistics

The host side reporting of VF vport statistics didn't include the VF
RDMA traffic.

Fixes: 3b751a2a418a ("net/mlx5: E-Switch, Introduce get vf statistics")
Signed-off-by: Adi Nissim <adin@mellanox.com>
Reported-by: Ariel Almog <ariela@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
6 years agonet/mlx5: Free IRQs in shutdown path
Daniel Jurgens [Mon, 26 Mar 2018 18:35:29 +0000 (13:35 -0500)]
net/mlx5: Free IRQs in shutdown path

Some platforms require IRQs to be free'd in the shutdown path. Otherwise
they will fail to be reallocated after a kexec.

Fixes: 8812c24d28f4 ("net/mlx5: Add fast unload support in shutdown flow")
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
6 years agorxrpc: Trace UDP transmission failure
David Howells [Thu, 10 May 2018 22:26:01 +0000 (23:26 +0100)]
rxrpc: Trace UDP transmission failure

Add a tracepoint to log transmission failure from the UDP transport socket
being used by AF_RXRPC.

Signed-off-by: David Howells <dhowells@redhat.com>
6 years agorxrpc: Add a tracepoint to log ICMP/ICMP6 and error messages
David Howells [Thu, 10 May 2018 22:26:01 +0000 (23:26 +0100)]
rxrpc: Add a tracepoint to log ICMP/ICMP6 and error messages

Add a tracepoint to log received ICMP/ICMP6 events and other error
messages.

Signed-off-by: David Howells <dhowells@redhat.com>
6 years agorxrpc: Fix the min security level for kernel calls
David Howells [Thu, 10 May 2018 22:26:01 +0000 (23:26 +0100)]
rxrpc: Fix the min security level for kernel calls

Fix the kernel call initiation to set the minimum security level for kernel
initiated calls (such as from kAFS) from the sockopt value.

Fixes: 19ffa01c9c45 ("rxrpc: Use structs to hold connection params and protocol info")
Signed-off-by: David Howells <dhowells@redhat.com>
6 years agorxrpc: Fix error reception on AF_INET6 sockets
David Howells [Thu, 10 May 2018 22:26:00 +0000 (23:26 +0100)]
rxrpc: Fix error reception on AF_INET6 sockets

AF_RXRPC tries to turn on IP_RECVERR and IP_MTU_DISCOVER on the UDP socket
it just opened for communications with the outside world, regardless of the
type of socket.  Unfortunately, this doesn't work with an AF_INET6 socket.

Fix this by turning on IPV6_RECVERR and IPV6_MTU_DISCOVER instead if the
socket is of the AF_INET6 family.

Without this, kAFS server and address rotation doesn't work correctly
because the algorithm doesn't detect received network errors.

Fixes: 75b54cb57ca3 ("rxrpc: Add IPv6 support")
Signed-off-by: David Howells <dhowells@redhat.com>
6 years agorxrpc: Fix missing start of call timeout
David Howells [Thu, 10 May 2018 22:26:00 +0000 (23:26 +0100)]
rxrpc: Fix missing start of call timeout

The expect_rx_by call timeout is supposed to be set when a call is started
to indicate that we need to receive a packet by that point.  This is
currently put back every time we receive a packet, but it isn't started
when we first send a packet.  Without this, the call may wait forever if
the server doesn't deign to reply.

Fix this by setting the timeout upon a successful UDP sendmsg call for the
first DATA packet.  The timeout is initiated only for initial transmission
and not for subsequent retries as we don't want the retry mechanism to
extend the timeout indefinitely.

Fixes: a158bdd3247b ("rxrpc: Fix call timeouts")
Reported-by: Marc Dionne <marc.dionne@auristor.com>
Signed-off-by: David Howells <dhowells@redhat.com>
6 years agoMerge tag 'linux-can-fixes-for-4.17-20180510' of ssh://gitolite.kernel.org/pub/scm...
David S. Miller [Thu, 10 May 2018 21:57:11 +0000 (17:57 -0400)]
Merge tag 'linux-can-fixes-for-4.17-20180510' of ssh://gitolite./linux/kernel/git/mkl/linux-can

Marc Kleine-Budde says:

====================
this is a pull request for net/master consisting of 2 patches.

Both patches are from Lukas Wunner and fix two problems found in the
hi311x CAN driver under high load situations.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoqed: fix spelling mistake: "taskelt" -> "tasklet"
Colin Ian King [Thu, 10 May 2018 14:03:27 +0000 (15:03 +0100)]
qed: fix spelling mistake: "taskelt" -> "tasklet"

Trivial fix to spelling mistake in DP_VERBOSE message text

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agorocker: Postpone filtering of !added_by_user FDB
Petr Machata [Thu, 10 May 2018 13:29:46 +0000 (15:29 +0200)]
rocker: Postpone filtering of !added_by_user FDB

Breaking out of the switch in rocker_switchdev_event() still ends up
scheduling work, except an ill-defined one. This leads to an OOPS cited
below. Fix by postponing the check until rocker_switchdev_event_work().

[   23.148476] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
[   23.148810] PGD 0 P4D 0
[   23.148982] Oops: 0000 [#1] PREEMPT SMP PTI
[   23.149190] Modules linked in: bridge stp llc iptable_nat nf_nat_ipv4 nf_nat e1000 rocker
[   23.149768] CPU: 0 PID: 239 Comm: kworker/u2:4 Not tainted 4.17.0-rc3-net_next_queue-custom #6
[   23.150298] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-2.fc27 04/01/2014
[   23.150868] Workqueue: rocker rocker_switchdev_event_work [rocker]
[   23.151258] RIP: 0010:ofdpa_port_fdb+0x7b/0x230 [rocker]
[   23.151597] RSP: 0018:ffffc900004b3e18 EFLAGS: 00010246
[   23.151952] RAX: 00000000fffbc68c RBX: 0000000000000000 RCX: 0000000000000000
[   23.152363] RDX: 0000000000000010 RSI: ffff88003b4471e0 RDI: 00000000ffffffff
[   23.152768] RBP: ffff88003b4471c0 R08: ffff88003b4471e0 R09: ffff88003b4471c0
[   23.153141] R10: 0000000000000000 R11: 0000000000000000 R12: ffff880036caf000
[   23.153515] R13: 0000000000000000 R14: 0000000000000000 R15: ffff88003bc00000
[   23.153919] FS:  0000000000000000(0000) GS:ffff88003fc00000(0000) knlGS:0000000000000000
[   23.154444] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.154806] CR2: 0000000000000000 CR3: 0000000036eb6000 CR4: 00000000000006f0
[   23.155194] Call Trace:
[   23.155472]  rocker_switchdev_event_work+0x9b/0xd0 [rocker]
[   23.155850]  ? __schedule+0x231/0x700
[   23.156175]  process_one_work+0x1cf/0x3e0
[   23.156490]  worker_thread+0x26/0x3d0
[   23.156795]  ? trace_event_raw_event_workqueue_execute_start+0x80/0x80
[   23.157181]  kthread+0x10e/0x130
[   23.157485]  ? kthread_create_worker_on_cpu+0x40/0x40
[   23.157824]  ret_from_fork+0x35/0x40
[   23.158174] Code: 00 00 c1 e8 02 4c 8d 45 20 bf ff ff ff ff 83 e0 01 4c 89 65 20 88 45 14 48 8b 05 21 da 1f e2 4c 89 c6 4c 89 44 24 10 48 89 45 18 <41> 8b 45 00 89 45 28 41 0f b7 45 04 66 89 45 2c 0f b7 44 24 04
[   23.159346] RIP: ofdpa_port_fdb+0x7b/0x230 [rocker] RSP: ffffc900004b3e18
[   23.159742] CR2: 0000000000000000
[   23.160088] ---[ end trace f9b16d4cb6df0629 ]---

Fixes: 816a3bed9549 ("switchdev: Add fdb.added_by_user to switchdev notifications")
Suggested-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agotls: Fix tls_device initialization
Boris Pismenny [Thu, 10 May 2018 13:27:25 +0000 (16:27 +0300)]
tls: Fix tls_device initialization

Add sg table initialization to fix a BUG_ON encountered when enabling
CONFIG_DEBUG_SG.

Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agocxgb4: fix the wrong conversion of Mbps to Kbps
Ganesh Goudar [Thu, 10 May 2018 10:37:23 +0000 (16:07 +0530)]
cxgb4: fix the wrong conversion of Mbps to Kbps

fix the wrong conversion where 1 Mbps was converted to
1024 Kbps.

Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge branch 'mlxsw-Support-VLAN-devices-in-mirroring-offloads'
David S. Miller [Thu, 10 May 2018 21:50:53 +0000 (17:50 -0400)]
Merge branch 'mlxsw-Support-VLAN-devices-in-mirroring-offloads'

Ido Schimmel says:

====================
mlxsw: Support VLAN devices in mirroring offloads

Petr says:

When offloading "tc action mirred mirror", there are several scenarios
where VLAN devices can show up, that mlxsw can offload on Spectrum
machines.

I) A direct mirror to a VLAN device on top of a front-panel port device
   (commonly referred to as "RSPAN")

II) VLAN device in egress path of a packet when resolving a mirror to
    gretap or ip6gretap netdevice.

Specifically in the latter case, the following are the cases that can be
offloaded:

IIa) VLAN device directly above a physical device.
IIb) A VLAN-unaware bridge where the egress device is as in IIa.
IIc) VLAN device on top of a VLAN-aware bridge where the egress device
     is a physical device.

This patch set implements all the above cases.

First, in patch #1, br_vlan_get_info() is extended to allow bridge
master argument.

Case I is then implemented in patches #2 and #3, case II in patch #4.

Note that handling of VLAN protocol is not included. In case I, mirrored
packets may end up being double-tagged, and it might be reasonable for
the outer tag to be an 802.1ad. However, the protocol type configuration
would have to be put on the same VLAN netdevice that represents normal
VLAN traffic, and mlxsw currently ignores this setting in that case. Thus
this support was left out and the encapsulation always uses 802.1q
protocol.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agomlxsw: spectrum_span: Support VLAN under mirror-to-gretap
Petr Machata [Thu, 10 May 2018 10:13:06 +0000 (13:13 +0300)]
mlxsw: spectrum_span: Support VLAN under mirror-to-gretap

When mirroring to a gretap or ip6gretap device, allow the underlay
packet path to include VLAN devices. The following configurations are
supported in underlay:

- vlan over phys
- vlan-unaware bridge where the egress device is vlan over phys
- vlan over vlan-aware bridge where the egress device is phys

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agomlxsw: spectrum_span: Support mirror-to-VLAN
Petr Machata [Thu, 10 May 2018 10:13:05 +0000 (13:13 +0300)]
mlxsw: spectrum_span: Support mirror-to-VLAN

Offload "tc action mirred mirror" to a device that is a vlan device on
top of a front-panel port device. The hardware encapsulates the mirrored
packets in a VLAN tag. That includes the case that the mirrored traffic
is already VLAN-tagged--in that case the monitor traffic will be
double-tagged, just like in the software path.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agomlxsw: reg: Add MLXSW_REG_MPAT_SPAN_TYPE_REMOTE_ETH
Petr Machata [Thu, 10 May 2018 10:13:04 +0000 (13:13 +0300)]
mlxsw: reg: Add MLXSW_REG_MPAT_SPAN_TYPE_REMOTE_ETH

Add MLXSW_REG_MPAT_SPAN_TYPE_REMOTE_ETH to support VLAN-encapsulated
port mirroring.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: bridge: Allow bridge master in br_vlan_get_info()
Petr Machata [Thu, 10 May 2018 10:13:03 +0000 (13:13 +0300)]
net: bridge: Allow bridge master in br_vlan_get_info()

Mirroring offload in mlxsw needs to check that a given VLAN is allowed
to ingress the bridge device. br_vlan_get_info() is the function that is
used for this, however currently it only supports bridge port devices.
Extend it to support bridge masters as well.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agosctp: remove sctp_chunk_put from fail_mark err path in sctp_ulpevent_make_rcvmsg
Xin Long [Thu, 10 May 2018 09:34:13 +0000 (17:34 +0800)]
sctp: remove sctp_chunk_put from fail_mark err path in sctp_ulpevent_make_rcvmsg

In Commit 1f45f78f8e51 ("sctp: allow GSO frags to access the chunk too"),
it held the chunk in sctp_ulpevent_make_rcvmsg to access it safely later
in recvmsg. However, it also added sctp_chunk_put in fail_mark err path,
which is only triggered before holding the chunk.

syzbot reported a use-after-free crash happened on this err path, where
it shouldn't call sctp_chunk_put.

This patch simply removes this call.

Fixes: 1f45f78f8e51 ("sctp: allow GSO frags to access the chunk too")
Reported-by: syzbot+141d898c5f24489db4aa@syzkaller.appspotmail.com
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet/mlx4_en: Fix an error handling path in 'mlx4_en_init_netdev()'
Christophe JAILLET [Thu, 10 May 2018 07:06:04 +0000 (09:06 +0200)]
net/mlx4_en: Fix an error handling path in 'mlx4_en_init_netdev()'

If an error occurs, 'mlx4_en_destroy_netdev()' is called.
It then calls 'mlx4_en_free_resources()' which does the needed resources
cleanup.

So, doing some explicit kfree in the error handling path would lead to
some double kfree.

Simplify code to avoid such a case.

Fixes: 67f8b1dcb9ee ("net/mlx4_en: Refactor the XDP forwarding rings scheme")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agotcp: Add mark for TIMEWAIT sockets
Jon Maxwell [Thu, 10 May 2018 06:53:51 +0000 (16:53 +1000)]
tcp: Add mark for TIMEWAIT sockets

This version has some suggestions by Eric Dumazet:

- Use a local variable for the mark in IPv6 instead of ctl_sk to avoid SMP
races.
- Use the more elegant "IP4_REPLY_MARK(net, skb->mark) ?: sk->sk_mark"
statement.
- Factorize code as sk_fullsock() check is not necessary.

Aidan McGurn from Openwave Mobility systems reported the following bug:

"Marked routing is broken on customer deployment. Its effects are large
increase in Uplink retransmissions caused by the client never receiving
the final ACK to their FINACK - this ACK misses the mark and routes out
of the incorrect route."

Currently marks are added to sk_buffs for replies when the "fwmark_reflect"
sysctl is enabled. But not for TW sockets that had sk->sk_mark set via
setsockopt(SO_MARK..).

Fix this in IPv4/v6 by adding tw->tw_mark for TIME_WAIT sockets. Copy the the
original sk->sk_mark in __inet_twsk_hashdance() to the new tw->tw_mark location.
Then progate this so that the skb gets sent with the correct mark. Do the same
for resets. Give the "fwmark_reflect" sysctl precedence over sk->sk_mark so that
netfilter rules are still honored.

Signed-off-by: Jon Maxwell <jmaxwell37@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: ipv4: remove define INET_CSK_DEBUG and unnecessary EXPORT_SYMBOL
Joe Perches [Thu, 10 May 2018 06:24:07 +0000 (23:24 -0700)]
net: ipv4: remove define INET_CSK_DEBUG and unnecessary EXPORT_SYMBOL

INET_CSK_DEBUG is always set and only is used for 2 pr_debug calls.

EXPORT_SYMBOL(inet_csk_timer_bug_msg) is only used by these 2
pr_debug calls and is also unnecessary as the exported string can
be used directly by these calls.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agohv_netvsc: set master device
Stephen Hemminger [Wed, 9 May 2018 21:09:04 +0000 (14:09 -0700)]
hv_netvsc: set master device

The hyper-v transparent bonding should have used master_dev_link.
The netvsc device should look like a master bond device not
like the upper side of a tunnel.

This makes the semantics the same so that userspace applications
looking at network devices see the correct master relationshipship.

Fixes: 0c195567a8f6 ("netvsc: transparent VF management")
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge tag 'mac80211-for-davem-2018-05-09' of git://git.kernel.org/pub/scm/linux/kerne...
David S. Miller [Thu, 10 May 2018 21:34:50 +0000 (17:34 -0400)]
Merge tag 'mac80211-for-davem-2018-05-09' of git://git./linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
We only have a few fixes this time:
 * WMM element validation
 * SAE timeout
 * add-BA timeout
 * docbook parsing
 * a few memory leaks in error paths
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoliquidio: bump up driver version to 1.7.2 to match newer NIC firmware
Felix Manlunas [Wed, 9 May 2018 18:49:38 +0000 (11:49 -0700)]
liquidio: bump up driver version to 1.7.2 to match newer NIC firmware

Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoliquidio: monitor all of Octeon's cores in watchdog thread
Felix Manlunas [Wed, 9 May 2018 18:31:31 +0000 (11:31 -0700)]
liquidio: monitor all of Octeon's cores in watchdog thread

The liquidio_watchdog kernel thread is watching over only 12 cores of the
Octeon CN23XX; it's neglecting the other 4 cores that are present in the
CN2360.  Fix it by defining LIO_MAX_CORES as 16.

Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next...
David S. Miller [Thu, 10 May 2018 21:31:03 +0000 (17:31 -0400)]
Merge branch '100GbE' of git://git./linux/kernel/git/jkirsher/next-queue

Jeff Kirsher says:

====================
100GbE Intel Wired LAN Driver Updates 2018-05-09

This series contains updates to fm10k only.

Jake provides all the changes in the series, starting with adding
support for accelerated MACVLAN devices.  Reduced code duplication by
implementing a macro to be used when setting up the type specific
macros.  Avoided potential bugs with stats by using a macro to calculate
the array size when passing to ensure that the size is correct.

v2: changed macro reference '#' with __stringify() as suggested by
    Joe Perches to patch 2 of the series.  Also made sure the updated
    series of patches is actually pushed to my kernel.org tree
====================

Signed-off-by: David S. Miller <davem@davemloft.net>