Commit Graph

694453 Commits

Author SHA1 Message Date
Linus Torvalds
e3181f2c0c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Fix IGMP handling wrt VRF, from David Ahern.

 2) Fix timer access to freed object in dccp, from Eric Dumazet.

 3) Use kmalloc_array() in ptr_ring to avoid overflow cases which are
    triggerable by userspace. Also from Eric Dumazet.

 4) Fix infinite loop in unmapping cleanup of nfp driver, from Colin Ian
    King.

 5) Correct datagram peek handling of empty SKBs, from Matthew Dawson.

 6) Fix use after free in TIPC, from Eric Dumazet.

 7) When replacing a route in ipv6 we need to reset the round robin
    pointer, from Wei Wang.

 8) Fix bug in pci_find_pcie_root_port() which was unearthed by the
    relaxed ordering changes, from Thierry Redding. I made sure to get
    an explicit ACK from Bjorn this time around :-)

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (27 commits)
  ipv6: repair fib6 tree in failure case
  net_sched: fix order of queue length updates in qdisc_replace()
  tools lib bpf: improve warning
  switchdev: documentation: minor typo fixes
  bpf, doc: also add s390x as arch to sysctl description
  net: sched: fix NULL pointer dereference when action calls some targets
  rxrpc: Fix oops when discarding a preallocated service call
  irda: do not leak initialized list.dev to userspace
  net/mlx4_core: Enable 4K UAR if SRIOV module parameter is not enabled
  PCI: Allow PCI express root ports to find themselves
  tcp: when rearming RTO, if RTO time is in past then fire RTO ASAP
  net: check and errout if res->fi is NULL when RTM_F_FIB_MATCH is set
  ipv6: reset fn->rr_ptr when replacing route
  sctp: fully initialize the IPv6 address in sctp_v6_to_addr()
  tipc: fix use-after-free
  tun: handle register_netdevice() failures properly
  datagram: When peeking datagrams with offset < 0 don't skip empty skbs
  bpf, doc: improve sysctl knob description
  netxen: fix incorrect loop counter decrement
  nfp: fix infinite loop on umapping cleanup
  ...
2017-08-21 13:16:27 -07:00
Oleg Nesterov
dd1c1f2f20 pids: make task_tgid_nr_ns() safe
This was reported many times, and this was even mentioned in commit
52ee2dfdd4 ("pids: refactor vnr/nr_ns helpers to make them safe") but
somehow nobody bothered to fix the obvious problem: task_tgid_nr_ns() is
not safe because task->group_leader points to nowhere after the exiting
task passes exit_notify(), rcu_read_lock() can not help.

We really need to change __unhash_process() to nullify group_leader,
parent, and real_parent, but this needs some cleanups.  Until then we
can turn task_tgid_nr_ns() into another user of __task_pid_nr_ns() and
fix the problem.

Reported-by: Troy Kensinger <tkensinger@google.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-08-21 12:47:31 -07:00
David Lamparter
e65a4955b0 net: check type when freeing metadata dst
Commit 3fcece12bc ("net: store port/representator id in metadata_dst")
added a new type field to metadata_dst, but metadata_dst_free() wasn't
updated to check it before freeing the METADATA_IP_TUNNEL specific dst
cache entry.

This is not currently causing problems since it's far enough back in the
struct to be zeroed for the only other type currently in existance
(METADATA_HW_PORT_MUX), but nevertheless it's not correct.

Fixes: 3fcece12bc ("net: store port/representator id in metadata_dst")
Signed-off-by: David Lamparter <equinox@diac24.net>
Cc: Jakub Kicinski <jakub.kicinski@netronome.com>
Cc: Sridhar Samudrala <sridhar.samudrala@intel.com>
Cc: Simon Horman <horms@verge.net.au>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-21 10:57:38 -07:00
David Ahern
4832c30d54 net: ipv6: put host and anycast routes on device with address
One nagging difference between ipv4 and ipv6 is host routes for ipv6
addresses are installed using the loopback device or VRF / L3 Master
device. e.g.,

    2001:db8:1::/120 dev veth0 proto kernel metric 256 pref medium
    local 2001:db8:1::1 dev lo table local proto kernel metric 0 pref medium

Using the loopback device is convenient -- necessary for local tx, but
has some nasty side effects, most notably setting the 'lo' device down
causes all host routes for all local IPv6 address to be removed from the
FIB and completely breaks IPv6 networking across all interfaces.

This patch puts FIB entries for IPv6 routes against the device. This
simplifies the routes in the FIB, for example by making dst->dev and
rt6i_idev->dev the same (a future patch can look at removing the device
reference taken for rt6i_idev for FIB entries).

When copies are made on FIB lookups, the cloned route has dst->dev
set to loopback (or the L3 master device). This is needed for the
local Tx of packets to local addresses.

With fib entries allocated against the real network device, the addrconf
code that reinserts host routes on admin up of 'lo' is no longer needed.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-21 10:40:17 -07:00
Florian Westphal
89e49506bc dsa: remove unused net_device arg from handlers
compile tested only, but saw no warnings/errors with
allmodconfig build.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-21 10:39:11 -07:00
David S. Miller
d1ef551ac9 Merge branch 'bpf-mips-jit-improvements'
David Daney says:

====================
MIPS,bpf: Improvements for MIPS eBPF JIT

Here are several improvements and bug fixes for the MIPS eBPF JIT.

The main change is the addition of support for JLT, JLE, JSLT and JSLE
ops, that were recently added.

Also fix WARN output when used with preemptable kernel, and a small
cleanup/optimization in the use of BPF_OP(insn->code).

I suggest that the whole thing go via the BPF/net-next path as there
are dependencies on code that is not yet merged to Linus' tree.

Still pending are changes to reduce stack usage when the verifier can
determine the maximum stack size.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-21 10:31:34 -07:00
David Daney
6035b3faf3 MIPS,bpf: Cache value of BPF_OP(insn->code) in eBPF JIT.
The code looks a little cleaner if we replace BPF_OP(insn->code) with
the local variable bpf_op.  Caching the value this way also saves 300
bytes (about 1%) in the code size of the JIT.

Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-21 10:31:34 -07:00
David Daney
a67b375fdc MIPS, bpf: Implement JLT, JLE, JSLT and JSLE ops in the eBPF JIT.
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-21 10:31:34 -07:00
David Daney
8d8d18c328 MIPS,bpf: Fix using smp_processor_id() in preemptible splat.
If the kernel is configured with preemption enabled we were getting
warning stack traces for use of current_cpu_type().

Fix by moving the test between preempt_disable()/preempt_enable() and
caching the results of the CPU type tests for use during code
generation.

Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-21 10:31:34 -07:00
Bhumika Goyal
da6817ebc3 qlogic: make device_attribute const
Make these const as they are only passed as an argument to the
function device_create_file and device_remove_file and the corresponding
arguments are of type const.
Done using Coccinelle

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-21 10:24:22 -07:00
David S. Miller
a43dce9358 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
Steffen Klassert says:

====================
pull request (net-next): ipsec-next 2017-08-21

1) Support RX checksum with IPsec crypto offload for esp4/esp6.
   From Ilan Tayari.

2) Fixup IPv6 checksums when doing IPsec crypto offload.
   From Yossi Kuperman.

3) Auto load the xfrom offload modules if a user installs
   a SA that requests IPsec offload. From Ilan Tayari.

4) Clear RX offload informations in xfrm_input to not
   confuse the TX path with stale offload informations.
   From Ilan Tayari.

5) Allow IPsec GSO for local sockets if the crypto operation
   will be offloaded.

6) Support setting of an output mark to the xfrm_state.
   This mark can be used to to do the tunnel route lookup.
   From Lorenzo Colitti.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-21 09:29:47 -07:00
Heiner Kallweit
03619844d8 rtc: ds1307: fix regmap config
Current max_register setting breaks reading nvram on certain chips and
also reading the standard registers on RX8130 where register map starts
at 0x10.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Fixes: 11e5890b53 "rtc: ds1307: convert driver to regmap"
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2017-08-21 11:08:03 +02:00
Rick Farrington
0c45d7fe12 liquidio: fix use of pf in pass-through mode in a virtual machine
Fix problem when PF is used in pass-through mode in a VM (w/embedded f/w).

If host error reading PF num from CN23XX_PCIE_SRIOV_FDL reg,
try to retrieve PF num from SLI_PKT(0)_INPUT_CONTROL (initialized by f/w).

Signed-off-by: Rick Farrington <ricardo.farrington@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-20 20:21:32 -07:00
Wei Wang
348a400272 ipv6: repair fib6 tree in failure case
In fib6_add(), it is possible that fib6_add_1() picks an intermediate
node and sets the node's fn->leaf to NULL in order to add this new
route. However, if fib6_add_rt2node() fails to add the new
route for some reason, fn->leaf will be left as NULL and could
potentially cause crash when fn->leaf is accessed in fib6_locate().
This patch makes sure fib6_repair_tree() is called to properly repair
fn->leaf in the above failure case.

Here is the syzkaller reported general protection fault in fib6_locate:
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
Modules linked in:
CPU: 0 PID: 40937 Comm: syz-executor3 Not tainted
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801d7d64100 ti: ffff8801d01a0000 task.ti: ffff8801d01a0000
RIP: 0010:[<ffffffff82a3e0e1>]  [<ffffffff82a3e0e1>] __ipv6_prefix_equal64_half include/net/ipv6.h:475 [inline]
RIP: 0010:[<ffffffff82a3e0e1>]  [<ffffffff82a3e0e1>] ipv6_prefix_equal include/net/ipv6.h:492 [inline]
RIP: 0010:[<ffffffff82a3e0e1>]  [<ffffffff82a3e0e1>] fib6_locate_1 net/ipv6/ip6_fib.c:1210 [inline]
RIP: 0010:[<ffffffff82a3e0e1>]  [<ffffffff82a3e0e1>] fib6_locate+0x281/0x3c0 net/ipv6/ip6_fib.c:1233
RSP: 0018:ffff8801d01a36a8  EFLAGS: 00010202
RAX: 0000000000000020 RBX: ffff8801bc790e00 RCX: ffffc90002983000
RDX: 0000000000001219 RSI: ffff8801d01a37a0 RDI: 0000000000000100
RBP: ffff8801d01a36f0 R08: 00000000000000ff R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000001
R13: dffffc0000000000 R14: ffff8801d01a37a0 R15: 0000000000000000
FS:  00007f6afd68c700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004c6340 CR3: 00000000ba41f000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801d01a37a8 ffff8801d01a3780 ffffed003a0346f5 0000000c82a23ea0
 ffff8800b7bd7700 ffff8801d01a3780 ffff8800b6a1c940 ffffffff82a23ea0
 ffff8801d01a3920 ffff8801d01a3748 ffffffff82a223d6 ffff8801d7d64988
Call Trace:
 [<ffffffff82a223d6>] ip6_route_del+0x106/0x570 net/ipv6/route.c:2109
 [<ffffffff82a23f9d>] inet6_rtm_delroute+0xfd/0x100 net/ipv6/route.c:3075
 [<ffffffff82621359>] rtnetlink_rcv_msg+0x549/0x7a0 net/core/rtnetlink.c:3450
 [<ffffffff8274c1d1>] netlink_rcv_skb+0x141/0x370 net/netlink/af_netlink.c:2281
 [<ffffffff82613ddf>] rtnetlink_rcv+0x2f/0x40 net/core/rtnetlink.c:3456
 [<ffffffff8274ad38>] netlink_unicast_kernel net/netlink/af_netlink.c:1206 [inline]
 [<ffffffff8274ad38>] netlink_unicast+0x518/0x750 net/netlink/af_netlink.c:1232
 [<ffffffff8274b83e>] netlink_sendmsg+0x8ce/0xc30 net/netlink/af_netlink.c:1778
 [<ffffffff82564aff>] sock_sendmsg_nosec net/socket.c:609 [inline]
 [<ffffffff82564aff>] sock_sendmsg+0xcf/0x110 net/socket.c:619
 [<ffffffff82564d62>] sock_write_iter+0x222/0x3a0 net/socket.c:834
 [<ffffffff8178523d>] new_sync_write+0x1dd/0x2b0 fs/read_write.c:478
 [<ffffffff817853f4>] __vfs_write+0xe4/0x110 fs/read_write.c:491
 [<ffffffff81786c38>] vfs_write+0x178/0x4b0 fs/read_write.c:538
 [<ffffffff817892a9>] SYSC_write fs/read_write.c:585 [inline]
 [<ffffffff817892a9>] SyS_write+0xd9/0x1b0 fs/read_write.c:577
 [<ffffffff82c71e32>] entry_SYSCALL_64_fastpath+0x12/0x17

Note: there is no "Fixes" tag as this seems to be a bug introduced
very early.

Signed-off-by: Wei Wang <weiwan@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-20 20:06:56 -07:00
Bhumika Goyal
6eb15e2130 net: dsa: mv88e6xxx: make irq_chip const
Make this const as it is only used in a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-20 20:02:29 -07:00
Konstantin Khlebnikov
68a66d149a net_sched: fix order of queue length updates in qdisc_replace()
This important to call qdisc_tree_reduce_backlog() after changing queue
length. Parent qdisc should deactivate class in ->qlen_notify() called from
qdisc_tree_reduce_backlog() but this happens only if qdisc->q.qlen in zero.

Missed class deactivations leads to crashes/warnings at picking packets
from empty qdisc and corrupting state at reactivating this class in future.

Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Fixes: 86a7996cc8 ("net_sched: introduce qdisc_replace() helper")
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-20 20:02:00 -07:00
Christophe Jaillet
138b57f0f8 net: ibm: emac: Fix some error handling path in 'emac_probe()'
If 'irq_of_parse_and_map()' or 'of_address_to_resource()' fail, 'err' is
known to be 0 at this point.
So return -ENODEV instead in the first case and use 'of_iomap()' instead of
the equivalent 'of_address_to_resource()/ioremap()' combinaison in the 2nd
case.

Doing so, the 'rsrc_regs' field of the 'emac_instance struct' becomes
redundant and is removed.

While at it, turn a 'err != 0' test into an equivalent 'err' to be more
consistent.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-20 19:53:08 -07:00
Ganesh Goudar
c3168cabe1 cxgb4/cxgbvf: Handle 32-bit fw port capabilities
Implement new 32-bit Firmware Port Capabilities in order to
handle new speeds which couldn't be represented in the old 16-bit
Firmware Port Capabilities values.

Based on the original work of Casey Leedom <leedom@chelsio.com>

Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-20 19:51:18 -07:00
Eric Leblond
49bf4b36fd tools lib bpf: improve warning
Signed-off-by: Eric Leblond <eric@regit.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-20 19:49:51 -07:00
Chris Packham
5a78449810 switchdev: documentation: minor typo fixes
Two typos in switchdev.txt

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-20 19:49:10 -07:00
Daniel Borkmann
274043c6c9 bpf: fix double free from dev_map_notification()
In the current code, dev_map_free() can still race with dev_map_notification().
In dev_map_free(), we remove dtab from the list of dtabs after we purged
all entries from it. However, we don't do xchg() with NULL or the like,
so the entry at that point is still pointing to the device. If a unregister
notification comes in at the same time, we therefore risk a double-free,
since the pointer is still present in the map, and then pushed again to
__dev_map_entry_free().

All this is completely unnecessary. Just remove the dtab from the list
right before the synchronize_rcu(), so all outstanding readers from the
notifier list have finished by then, thus we don't need to deal with this
corner case anymore and also wouldn't need to nullify dev entires. This is
fine because we iterate over the map releasing all entries and therefore
dev references anyway.

Fixes: 4cc7b9544b ("bpf: devmap fix mutex in rcu critical section")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-20 19:45:54 -07:00
Daniel Borkmann
d4dd2d75a2 bpf, doc: also add s390x as arch to sysctl description
Looks like this was accidentally missed, so still add s390x
as supported eBPF JIT arch to bpf_jit_enable.

Fixes: 014cd0a368 ("bpf: Update sysctl documentation to list all supported architectures")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-20 19:45:09 -07:00
David S. Miller
63bfc50865 mlx5-updates-2017-08-17
Some updates for mlx5 ethernet and IPoIB device driver.
 
 Eran added the support for manage physical link state from netdevice upon
 interface open/close requests.
 
 Feras fixed the driver name showed in ethtool for IPoIB interfaces.
 Shalom Added the support for IPoIB netdevice ethtool get link settings.
 
 Gal and Eran exposed new diagnostic counters for outbound PCIe stalls and overflow
 and RX buffer fullness statistics.
 
 Code cleanups from Or Gerlitz.
 Variable types cleanup from Gal.
 
 Thanks,
 Saeed.
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Merge tag 'mlx5-updates-2017-08-17-V2' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5-updates-2017-08-17

Some updates for mlx5 ethernet and IPoIB device driver.

Eran added the support for manage physical link state from netdevice upon
interface open/close requests.

Feras fixed the driver name showed in ethtool for IPoIB interfaces.
Shalom Added the support for IPoIB netdevice ethtool get link settings.

Gal and Eran exposed new diagnostic counters for outbound PCIe stalls and overflow
and RX buffer fullness statistics.

Code cleanups from Or Gerlitz.
Variable types cleanup from Gal.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-20 15:19:31 -07:00
Linus Torvalds
14ccee78fc Linux 4.13-rc6 2017-08-20 14:13:52 -07:00
Linus Torvalds
197e7e5213 Sanitize 'move_pages()' permission checks
The 'move_paghes()' system call was introduced long long ago with the
same permission checks as for sending a signal (except using
CAP_SYS_NICE instead of CAP_SYS_KILL for the overriding capability).

That turns out to not be a great choice - while the system call really
only moves physical page allocations around (and you need other
capabilities to do a lot of it), you can check the return value to map
out some the virtual address choices and defeat ASLR of a binary that
still shares your uid.

So change the access checks to the more common 'ptrace_may_access()'
model instead.

This tightens the access checks for the uid, and also effectively
changes the CAP_SYS_NICE check to CAP_SYS_PTRACE, but it's unlikely that
anybody really _uses_ this legacy system call any more (we hav ebetter
NUMA placement models these days), so I expect nobody to notice.

Famous last words.

Reported-by: Otto Ebeling <otto.ebeling@iki.fi>
Acked-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: Willy Tarreau <w@1wt.eu>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-08-20 13:26:27 -07:00
Linus Torvalds
7f680d7ec3 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
 "Another pile of small fixes and updates for x86:

   - Plug a hole in the SMAP implementation which misses to clear AC on
     NMI entry

   - Fix the norandmaps/ADDR_NO_RANDOMIZE logic so the command line
     parameter works correctly again

   - Use the proper accessor in the startup64 code for next_early_pgt to
     prevent accessing of invalid addresses and faulting in the early
     boot code.

   - Prevent CPU hotplug lock recursion in the MTRR code

   - Unbreak CPU0 hotplugging

   - Rename overly long CPUID bits which got introduced in this cycle

   - Two commits which mark data 'const' and restrict the scope of data
     and functions to file scope by making them 'static'"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: Constify attribute_group structures
  x86/boot/64/clang: Use fixup_pointer() to access 'next_early_pgt'
  x86/elf: Remove the unnecessary ADDR_NO_RANDOMIZE checks
  x86: Fix norandmaps/ADDR_NO_RANDOMIZE
  x86/mtrr: Prevent CPU hotplug lock recursion
  x86: Mark various structures and functions as 'static'
  x86/cpufeature, kvm/svm: Rename (shorten) the new "virtualized VMSAVE/VMLOAD" CPUID flag
  x86/smpboot: Unbreak CPU0 hotplug
  x86/asm/64: Clear AC on NMI entries
2017-08-20 09:36:52 -07:00
Linus Torvalds
2615a38f14 Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Thomas Gleixner:
 "A few small fixes for timer drivers:

   - Prevent infinite recursion in the arm architected timer driver with
     ftrace

   - Propagate error codes to the caller in case of failure in EM STI
     driver

   - Adjust a bogus loop iteration in the arm architected timer driver

   - Add a missing Kconfig dependency to the pistachio clocksource to
     prevent build failures

   - Correctly check for IS_ERR() instead of NULL in the shared timer-of
     code"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource/drivers/arm_arch_timer: Avoid infinite recursion when ftrace is enabled
  clocksource/drivers/Kconfig: Fix CLKSRC_PISTACHIO dependencies
  clocksource/drivers/timer-of: Checking for IS_ERR() instead of NULL
  clocksource/drivers/em_sti: Fix error return codes in em_sti_probe()
  clocksource/drivers/arm_arch_timer: Fix mem frame loop initialization
2017-08-20 09:34:24 -07:00
Linus Torvalds
e46db8d2ef Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Thomas Gleixner:
 "Two fixes for the perf subsystem:

   - Fix an inconsistency of RDPMC mm struct tagging across exec() which
     causes RDPMC to fault.

   - Correct the timestamp mechanics across IOC_DISABLE/ENABLE which
     causes incorrect timestamps and total time calculations"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/core: Fix time on IOC_ENABLE
  perf/x86: Fix RDPMC vs. mm_struct tracking
2017-08-20 09:20:57 -07:00
Linus Torvalds
9dae41a238 Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
 "A pile of smallish changes all over the place:

   - Add a missing ISB in the GIC V1 driver

   - Remove an ACPI version check in the GIC V3 ITS driver

   - Add the missing irq_pm_shutdown function for BRCMSTB-L2 to avoid
     spurious wakeups

   - Remove the artifical limitation of ITS instances to the number of
     NUMA nodes which prevents utilizing the ITS hardware correctly

   - Prevent a infinite parsing loop in the GIC-V3 ITS/MSI code

   - Honour the force affinity argument in the GIC-V3 driver which is
     required to make perf work correctly

   - Correctly report allocation failures in GIC-V2/V3 to avoid using
     half allocated and initialized interrupts.

   - Fixup checks against nr_cpu_ids in the generic IPI code"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  genirq/ipi: Fixup checks against nr_cpu_ids
  genirq: Restore trigger settings in irq_modify_status()
  MAINTAINERS: Remove Jason Cooper's irqchip git tree
  irqchip/gic-v3-its-platform-msi: Fix msi-parent parsing loop
  irqchip/gic-v3-its: Allow GIC ITS number more than MAX_NUMNODES
  irqchip: brcmstb-l2: Define an irq_pm_shutdown function
  irqchip/gic: Ensure we have an ISB between ack and ->handle_irq
  irqchip/gic-v3-its: Remove ACPICA version check for ACPI NUMA
  irqchip/gic-v3: Honor forced affinity setting
  irqchip/gic-v3: Report failures in gic_irq_domain_alloc
  irqchip/gic-v2: Report failures in gic_irq_domain_alloc
  irqchip/atmel-aic: Remove root argument from ->fixup() prototype
  irqchip/atmel-aic: Fix unbalanced refcount in aic_common_rtc_irq_fixup()
  irqchip/atmel-aic: Fix unbalanced of_node_put() in aic_common_irq_fixup()
2017-08-20 09:07:56 -07:00
Linus Torvalds
e18a5ebc2d Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull watchdog fix from Thomas Gleixner:
 "A fix for the hardlockup watchdog to prevent false positives with
  extreme Turbo-Modes which make the perf/NMI watchdog fire faster than
  the hrtimer which is used to verify.

  Slightly larger than the minimal fix, which just would increase the
  hrtimer frequency, but comes with extra overhead of more watchdog
  timer interrupts and thread wakeups for all users.

  With this change we restrict the overhead to the extreme Turbo-Mode
  systems"

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  kernel/watchdog: Prevent false positives with turbo modes
2017-08-20 08:54:30 -07:00
Gal Pressman
9da5106c56 net/mlx5e: Use size_t to store byte offset in statistics descriptors
The byte offset of counter descriptors should be stored in size_t variable
instead of an integer.

Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-08-20 12:57:20 +03:00
Gal Pressman
c045deef64 net/mlx5e: Use kernel types instead of uint*_t in ethtool callbacks
Fix checkpatch errors:
CHECK:PREFER_KERNEL_TYPES: Prefer kernel type 'u32' over 'uint32_t'

Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-08-20 12:57:19 +03:00
Or Gerlitz
1afdb7718f net/mlx5e: Place constants on the right side of comparisons
To fix these checkpatch complaints:

WARNING: Comparisons should place the constant on the right side of the test

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-08-20 12:57:19 +03:00
Or Gerlitz
12148f5ab0 net/mlx5e: Avoid using multiple blank lines
To fix these checkpatch complaints:

CHECK: Please don't use multiple blank lines

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-08-20 12:57:19 +03:00
Or Gerlitz
61bf212565 net/mlx5e: Properly indent within conditional statements
To fix these checkpatch complaints:

WARNING: suspect code indent for conditional statements (8, 24)
+       if (eth_proto & (MLX5E_PROT_MASK(MLX5E_10GBASE_SR)
[...]
+                       return PORT_FIBRE;

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-08-20 12:57:19 +03:00
Or Gerlitz
ad5b39a95c net/mlx5: Add a blank line after declarations
To fix these checkpatch complaints:

WARNING: Missing a blank line after declarations

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-08-20 12:57:19 +03:00
Or Gerlitz
733d6c5149 net/mlx5: Avoid blank lines after/before open/close brace
To fix these checkpatch complaints:

CHECK: Blank lines aren't necessary after an open brace '{'
CHECK: Blank lines aren't necessary before a close brace '}'

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-08-20 12:57:19 +03:00
Eran Ben Elisha
efae7f78c4 net/mlx5e: Add outbound PCI buffer overflow counter
Add outbound_pci_buffer_overflow to ethtool output for monitoring the
number of packets that were dropped due to lack of PCIe buffers on
receive path from NIC port toward the host(s).

This counter is valid only in case that tx_overflow_buffer_pkt is
supported in MCAM enhanced features.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-08-20 12:57:19 +03:00
Gal Pressman
068aef33be net/mlx5e: Add RX buffer fullness counters
rx_buffer_passed_thres_phy - The number of events where the port RX
buffer has passed a fullness threshold.

rx_buffer_full_phy - The number of events where the port RX buffer has
reached 100% fullness.

Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-08-20 12:57:19 +03:00
Gal Pressman
2dba07975a net/mlx5: Add RX buffer fullness counters infrastructure
Add capability bit in PCAM register and counters to PPCNT register.

Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-08-20 12:57:19 +03:00
Gal Pressman
73e90646a2 net/mlx5e: Add PCIe outbound stalls counters
outbound_pci_stalled_rd - The percentage of time within the last second
that the NIC had outbound non-posted read requests but could not perform
the operation due to insufficient non-posted credits.

outbound_pci_stalled_wr - The percentage of time within the
last second that the NIC had outbound posted writes requests but could
not perform the operation due to insufficient posted credits.

outbound_pci_stalled_rd_events - The number of events where
outbound_pci_stalled_rd was above the threshold.

outbound_pci_stalled_wr_events - The number of events where
outbound_pci_stalled_wr was above the threshold.

Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-08-20 12:57:19 +03:00
Gal Pressman
5405fa26c2 net/mlx5: Add PCIe outbound stalls counters infrastructure
Add capability bit in MCAM register and counters to MPCNT register.

Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-08-20 12:57:19 +03:00
Shalom Lagziel
eb234ee9d5 net/mlx5e: IPoIB, Add support for get_link_ksettings in ethtool
Add support for "ethtool DEVNAME" over ipoib ports,
Display standard port information for IPoIB netdevices using ethtool
For example:
$ ethtool ib2
> Settings for ib2:
        Supported ports: [ ]
        Supported link modes:   Not reported
        Supported pause frame use: No
        Supports auto-negotiation: No
        Advertised link modes:  Not reported
        Advertised pause frame use: No
        Advertised auto-negotiation: No
        Speed: 100000Mb/s
        Duplex: Full
        Port: Other
        PHYAD: 0
        Transceiver: internal
        Auto-negotiation: off
        Link detected: yes

Signed-off-by: Shalom Lagziel <shaloml@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-08-20 12:57:19 +03:00
Feras Daoud
1d1c343611 net/mlx5e: IPoIB, Fix driver name retrieved by ethtool
Printing an enhanced IPoIB device information using
"ethtool -i DEVNAME", prints the low level driver name: mlx5_core.
This commit changes the name to mlx5_core [ib_ipoib], to include the
ipoib device driver infromation.

Fixes: 076b0936e5 ("net/mlx5e: IPoIB, Add ethtool support")
Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-08-20 12:57:19 +03:00
Eran Ben Elisha
63bfd399de net/mlx5e: Send PAOS command on interface up/down
Upon interface up/down, driver will send PAOS (Ports Administrative and
Operational Status Register) in order to inform the Firmware on the
desired status of the port by the driver.

Since now we might change physical link status on mlx5e_open/close,
logical VF representor should not use mlx5e_open/close ndos as is, and
should call the logical version mlx5e_open/closed_locked.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-08-20 12:57:19 +03:00
Alexey Dobriyan
8fbbe2d7cc genirq/ipi: Fixup checks against nr_cpu_ids
Valid CPU ids are [0, nr_cpu_ids-1] inclusive.

Fixes: 3b8e29a82d ("genirq: Implement ipi_send_mask/single()")
Fixes: f9bce791ae ("genirq: Add a new function to get IPI reverse mapping")
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/20170819095751.GB27864@avx2
2017-08-20 10:49:05 +02:00
David S. Miller
d6e1e46f69 bpf: linux/bpf.h needs linux/numa.h
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-19 23:34:03 -07:00
David S. Miller
228498596c Merge branch 'BPF-inline-improvements'
Daniel Borkmann says:

====================
BPF inline improvements

First one makes htab inlining more robust wrt future jits and
second one inlines map in map lookups through map_gen_lookup()
callback.

v1 -> v2:
  - BITS_PER_LONG guard in patch 1
  - BPF_EMIT_CALL is on __htab_map_lookup_elem
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-19 21:56:34 -07:00
Daniel Borkmann
7b0c2a0508 bpf: inline map in map lookup functions for array and htab
Avoid two successive functions calls for the map in map lookup, first
is the bpf_map_lookup_elem() helper call, and second the callback via
map->ops->map_lookup_elem() to get to the map in map implementation.
Implementation inlines array and htab flavor for map in map lookups.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-19 21:56:34 -07:00
Daniel Borkmann
89c63074c2 bpf: make htab inlining more robust wrt assumptions
Commit 9015d2f595 ("bpf: inline htab_map_lookup_elem()") was
making the assumption that a direct call emission to the function
__htab_map_lookup_elem() will always work out for JITs.

This is currently true since all JITs we have are for 64 bit archs,
but in case of 32 bit JITs like upcoming arm32, we get a NULL pointer
dereference when executing the call to __htab_map_lookup_elem()
since passed arguments are of a different size (due to pointer args)
than what we do out of BPF. Guard and thus limit this for now for
the current 64 bit JITs only.

Reported-by: Shubham Bansal <illusionist.neo@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-19 21:56:33 -07:00