Commit Graph

680106 Commits

Author SHA1 Message Date
Vivien Didelot
e4b7778769 net: dsa: assign default CPU port to all ports
The current code only assigns the default cpu_dp to all user ports of
the switch to which the CPU port belongs. The user ports of the other
switches of the fabric thus don't have a default CPU port.

This patch fixes this by assigning the cpu_dp of all user ports of all
switches of the fabric when the tree is fully parsed.

Fixes: a29342e739 ("net: dsa: Associate slave network device with CPU port")
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 17:23:35 -04:00
David S. Miller
3715c47bcd Merge branch 'r8152-support-new-chips'
Hayes Wang says:

====================
r8152: support new chips

These patches are used to support new chips.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:31:56 -04:00
hayeswang
d8fbd27469 r8152: add byte_enable for ocp_read_word function
Add byte_enable for ocp_read_word() to replace reading 4
bytes data with reading the desired 2 bytes data.

This is used to avoid the issue which is described in
commit b4d99def09 ("r8152: remove sram_read"). The
original method always reads 4 bytes data, and it may
have problem when reading the PHY registers.

The new method is supported since RTL8153B, but it
doesn't influence the previous chips. The bits of the
byte_enable for the previous chips are the reserved
bits, and the hw would ignore them.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:31:56 -04:00
hayeswang
65b82d696b r8152: support RTL8153B
This patch supports two new chips for RTL8153B.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:31:55 -04:00
hayeswang
c27b32c2a4 r8152: support new chip 8050
The settings of the new chip are the same with RTL8152, except that
its product ID is 0x8050.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:31:55 -04:00
David S. Miller
18b6e7955d Merge branch 'ibmvnic-LPM-bug-fixes'
Thomas Falcon says:

====================
ibmvnic: LPM bug fixes

This series of small patches is meant to resolve a number of
bugs, mostly occurring during an ibmvnic driver reset when
recovering from a logical partition migration (LPM).

The first patch ensures that RX buffer pools are properly
activated following an adapter reset by setting the proper
flag in the pool data structure.

The second patch uses netif_tx_disable to stop TX queues when
closing the device during a reset.

Third, fixup a typo that resulted in partial sanitization of
TX/RX descriptor queues following a device reset.

Fourth, remove an ambiguous conditional check that was resulting
in a kernel panic as null RX/TX completion descriptors were being
processed during napi polling while the device is closing.

Finally, fix a condition where the napi polling routine exits
before it has completed its work budget without notifying the
upper network layers. This omission could result in the
napi_disable function sleeping indefinitely under certain conditions.

v2: Attempt to provide a proper cover letter
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:29:01 -04:00
Thomas Falcon
21ecba6c48 ibmvnic: Exit polling routine correctly during adapter reset
This patch fixes a bug where, in the case of a device reset,
the polling routine will never complete, causing napi_disable
to sleep indefinitely when attempting to close the device.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:29:00 -04:00
Thomas Falcon
1cf9cc72bd ibmvnic: Remove VNIC_CLOSING check from pending_scrq
Fix a kernel panic resulting from data access of a NULL
pointer during device close. The pending_scrq routine is
meant to determine whether there is a valid sub-CRQ message
awaiting processing. When the device is closing, however,
there is a possibility that NULL messages can be processed
because pending_scrq will always return 1 even if there
no valid message in the queue.

It's not clear what this closing state check was originally
meant to accomplish, so just remove it.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:29:00 -04:00
Thomas Falcon
c8b2ad0a4a ibmvnic: Sanitize entire SCRQ buffer on reset
Fixup a typo so that the entire SCRQ buffer is cleaned.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:29:00 -04:00
Thomas Falcon
4c2687a512 ibmvnic: Ensure that TX queues are disabled in __ibmvnic_close
Use netif_tx_disable to guarantee that TX queues are disabled
when __ibmvnic_close is called by the device reset routine.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:29:00 -04:00
Thomas Falcon
c3e53b9a3e ibmvnic: Activate disabled RX buffer pools on reset
RX buffer pools are disabled while awaiting a device
reset if firmware indicates that the resource is closed.

This patch fixes a bug where pools were not being
subsequently enabled after the device reset, causing
the device to become inoperable.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:28:59 -04:00
Shannon Nelson
7e9191c54a sunvnet: restrict advertized checksum offloads to just IP
As much as we'd like to play well with others, we really aren't
handling the checksums on non-IP protocol packets very well.  This
is easily seen when trying to do TCP over ipv6 - the checksums are
garbage.

Here we restrict the checksum feature flag to just IP traffic so
that we aren't given work we can't yet do.

Orabug: 26175391, 26259755

Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:22:43 -04:00
David S. Miller
3d8bd78b79 Merge branch 'sched-act_tunnel_key-UDP-checksusm'
Jiri Benc says:

====================
net: sched: act_tunnel_key: UDP checksums

Currently, the tunnel_key tc action does not set TUNNEL_CSUM, thus
transmitting packets with zero UDP checksum. This is inconsistent with how
we treat non-lwt UDP tunnels where the default is to fill in the UDP
checksum. Non-zero UDP checksum is the better default anyway for various
reasons previously discussed.

Make this configurable for the tunnel_key tc action with the default being
non-zero checksum. Saves a lot of surprises especially with IPv6.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:21:04 -04:00
Jiri Benc
86087e170c net: sched: act_tunnel_key: make UDP checksum configurable
Allow requesting of zero UDP checksum for encapsulated packets. The name and
meaning of the attribute is "NO_CSUM" in order to have the same meaning of
the attribute missing and being 0.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:21:03 -04:00
Jiri Benc
63fe4c39d2 net: sched: act_tunnel_key: request UDP checksum by default
There's currently no way to request (outer) UDP checksum with
act_tunnel_key. This is problem especially for IPv6. Right now, tunnel_key
action with IPv6 does not work without going through hassles: both sides
have to have udp6zerocsumrx configured on the tunnel interface. This is
obviously not a good solution universally.

It makes more sense to compute the UDP checksum by default even for IPv4.
Just set the default to request the checksum when using act_tunnel_key.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:21:03 -04:00
Gustavo A. R. Silva
9d7cdedd0f net: s2io: remove useless variable in fill_rx_buffers
Remove useless variable rxd_index and code related.

Addresses-Coverity-ID: 1397691
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:15:13 -04:00
David S. Miller
1947030645 Merge branch 'dsa-prefix-Global-macros'
Vivien Didelot says:

====================
net: dsa: prefix Global macros

This patch series is the 2/3 step of the register definitions cleanup.
It brings no functional changes.

It prefixes and documents all Global (1) registers with MV88E6XXX_G1_
(or a specific model like MV88E6352_G1_STS_PPU_STATE), and prefers a
16-bit hexadecimal representation of the Marvell registers layout.

The next and last patchset will prefix the Global 2 registers.
====================

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:07:51 -04:00
Vivien Didelot
ccba8f3a06 net: dsa: mv88e6xxx: prefix Global Prio and Tag macros
Prefix and document the remaining Global IP and IEEE Priority and Core
Tag Type registers and give them a clear 16-bit register representation.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:07:50 -04:00
Vivien Didelot
57d1ef389c net: dsa: mv88e6xxx: prefix Global Stats macros
Prefix and document the Global Stats Operation and Counter registers and
give them a clear 16-bit registers representation.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:07:50 -04:00
Vivien Didelot
101515c8c5 net: dsa: mv88e6xxx: prefix Global Monitor Control macros
Prefix and document the Global Monitor Control Register macros
(which became the Global Monitor & MGMT Control Register with 88E6390)
and give a clear 16-bit registers representation.

Use __bf_shf to get the shift value at compile time instead of adding
new defined macros for it.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:07:49 -04:00
Vivien Didelot
d77f4321fa net: dsa: mv88e6xxx: prefix Global Control macros
Prefix and document the Global Control and Control 2 registers macros
and give a clear 16-bit registers representation.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:07:49 -04:00
Vivien Didelot
7ec60d6e2c net: dsa: mv88e6xxx: prefix Global VTU macros
Prefix and document the Global VTU registers macros and give a clear
16-bit registers representation.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:07:49 -04:00
Vivien Didelot
27c0e60097 net: dsa: mv88e6xxx: prefix Global ATU macros
Prefix and document the Global ATU Registers macros and give clear
16-bit registers representation.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:07:48 -04:00
Vivien Didelot
4b0c481717 net: dsa: mv88e6xxx: prefix Global Switch MAC macros
Prefix and document the Global Switch MAC Address Register macros and
give clear 16-bit register representation.

At the same time, move mv88e6xxx_g1_set_switch_mac in global1.c, where
it belongs.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:07:48 -04:00
Vivien Didelot
8246692182 net: dsa: mv88e6xxx: prefix Global Status macros
Prefix and document the Global Status Register macros and give clear
16-bit register representation.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:07:48 -04:00
Johannes Berg
83ad357dee skbuff: make skb_put_zero() return void
It's nicer to return void, since then there's no need to
cast to any structures. Currently none of the users have
a cast, but a number of future conversions do.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 12:17:06 -04:00
David S. Miller
108ea51412 Merge branch 'net-ktls'
Dave Watson says:

====================
net: kernel TLS

This series adds support for kernel TLS encryption over TCP sockets.
A standard TCP socket is converted to a TLS socket using a setsockopt.
Only symmetric crypto is done in the kernel, as well as TLS record
framing.  The handshake remains in userspace, and the negotiated
cipher keys/iv are provided to the TCP socket.

We implemented support for this API in OpenSSL 1.1.0, the code is
available at https://github.com/Mellanox/tls-openssl/tree/master

It should work with any TLS library with similar modifications,
a test tool using gnutls is here: https://github.com/Mellanox/tls-af_ktls_tool

RFC patch to openssl:
https://mta.openssl.org/pipermail/openssl-dev/2017-June/009384.html

Changes from V2:

* EXPORT_SYMBOL_GPL in patch 1
* Ensure cleanup code always called before sk_stream_kill_queues to
  avoid warnings

Changes from V1:

* EXPORT_SYMBOL GPL in patch 2
* Add link to OpenSSL patch & gnutls example in documentation patch.
* sk_write_pending check was rolled in to wait_for_memory path,
  avoids special case and fixes lock inbalance issue.
* Unify flag handling for sendmsg/sendfile

Changes from RFC V2:

* Generic ULP (upper layer protocol) framework instead of TLS specific
  setsockopts
* Dropped Mellanox hardware patches, will come as separate series.
  Framework will work for both.

RFC V2:

http://www.mail-archive.com/netdev@vger.kernel.org/msg160317.html

Changes from RFC V1:

* Socket based on changing TCP proto_ops instead of crypto framework
* Merged code with Mellanox's hardware tls offload
* Zerocopy sendmsg support added - sendpage/sendfile is no longer
  necessary for zerocopy optimization

RFC V1:

http://www.mail-archive.com/netdev@vger.kernel.org/msg88021.html

* Socket based on crypto userspace API framework, required two
  sockets in userspace, one encrypted, one unencrypted.

Paper: https://netdevconf.org/1.2/papers/ktls.pdf
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 12:12:41 -04:00
Dave Watson
99c195fb4e tls: Documentation
Add documentation for the tcp ULP tls interface.

Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Dave Watson <davejwatson@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 12:12:41 -04:00
Dave Watson
3c4d755915 tls: kernel TLS support
Software implementation of transport layer security, implemented using ULP
infrastructure.  tcp proto_ops are replaced with tls equivalents of sendmsg and
sendpage.

Only symmetric crypto is done in the kernel, keys are passed by setsockopt
after the handshake is complete.  All control messages are supported via CMSG
data - the actual symmetric encryption is the same, just the message type needs
to be passed separately.

For user API, please see Documentation patch.

Pieces that can be shared between hw and sw implementation
are in tls_main.c

Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Ilya Lesokhin <ilyal@mellanox.com>
Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Dave Watson <davejwatson@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 12:12:40 -04:00
Dave Watson
e3b5616a34 tcp: export do_tcp_sendpages and tcp_rate_check_app_limited functions
Export do_tcp_sendpages and tcp_rate_check_app_limited, since tls will need to
sendpages while the socket is already locked.

tcp_sendpage is exported, but requires the socket lock to not be held already.

Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Ilya Lesokhin <ilyal@mellanox.com>
Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Dave Watson <davejwatson@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 12:12:40 -04:00
Dave Watson
734942cc4e tcp: ULP infrastructure
Add the infrustructure for attaching Upper Layer Protocols (ULPs) over TCP
sockets. Based on a similar infrastructure in tcp_cong.  The idea is that any
ULP can add its own logic by changing the TCP proto_ops structure to its own
methods.

Example usage:

setsockopt(sock, SOL_TCP, TCP_ULP, "tls", sizeof("tls"));

modules will call:
tcp_register_ulp(&tcp_tls_ulp_ops);

to register/unregister their ulp, with an init function and name.

A list of registered ulps will be returned by tcp_get_available_ulp, which is
hooked up to /proc.  Example:

$ cat /proc/sys/net/ipv4/tcp_available_ulp
tls

There is currently no functionality to remove or chain ULPs, but
it should be possible to add these in the future if needed.

Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Dave Watson <davejwatson@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 12:12:40 -04:00
David S. Miller
206f60e145 Merge branch 'Broadcom-DTE-based-PTP-clock'
Arun Parameswaran says:

====================
Add support for Broadcom DTE based PTP clock

This patchset adds support for the DTE based PTP clock for Broadcom SoCs.

The DTE nco based PTP clock can be used in both wired and wireless networks
for precision time-stmaping purposes.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 12:07:16 -04:00
Arun Parameswaran
8a56aa107f ptp: Add a ptp clock driver for Broadcom DTE
This patch adds a ptp clock driver for the Broadcom SoCs using
the Digital timing Engine (DTE) nco.

Signed-off-by: Arun Parameswaran <arun.parameswaran@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 12:07:15 -04:00
Arun Parameswaran
80d6076140 dt-binding: ptp: add bindings document for dte based ptp clock
Add device tree binding documentation for the Broadcom DTE
PTP clock driver.

Signed-off-by: Arun Parameswaran <arun.parameswaran@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 12:07:15 -04:00
David S. Miller
0ddead90b2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
The conflicts were two cases of overlapping changes in
batman-adv and the qed driver.

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 11:59:32 -04:00
Linus Torvalds
a090bd4ff8 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) The netlink attribute passed in to dev_set_alias() is not
    necessarily NULL terminated, don't use strlcpy() on it. From
    Alexander Potapenko.

 2) Fix implementation of atomics in arm64 bpf JIT, from Daniel
    Borkmann.

 3) Correct the release of netdevs and driver private data in certain
    circumstances.

 4) Sanitize netlink message length properly in decnet, from Mateusz
    Jurczyk.

 5) Don't leak kernel data in rtnl_fill_vfinfo() netlink blobs. From
    Yuval Mintz.

 6) Hash secret is never initialized in ipv6 ILA translation code, from
    Arnd Bergmann. I guess those clang warnings about unused inline
    functions are useful for something!

 7) Fix endian selection in bpf_endian.h, from Daniel Borkmann.

 8) Sanitize sockaddr length before dereferncing any fields in AF_UNIX
    and CAIF. From Mateusz Jurczyk.

 9) Fix timestamping for GMAC3 chips in stmmac driver, from Mario
    Molitor.

10) Do not leak netdev on dev_alloc_name() errors in mac80211, from
    Johannes Berg.

11) Fix locking in sctp_for_each_endpoint(), from Xin Long.

12) Fix wrong memset size on 32-bit in snmp6, from Christian Perle.

13) Fix use after free in ip_mc_clear_src(), from WANG Cong.

14) Fix regressions caused by ICMP rate limiting changes in 4.11, from
    Jesper Dangaard Brouer.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (91 commits)
  i40e: Fix a sleep-in-atomic bug
  net: don't global ICMP rate limit packets originating from loopback
  net/act_pedit: fix an error code
  net: update undefined ->ndo_change_mtu() comment
  net_sched: move tcf_lock down after gen_replace_estimator()
  caif: Add sockaddr length check before accessing sa_family in connect handler
  qed: fix dump of context data
  qmi_wwan: new Telewell and Sierra device IDs
  net: phy: Fix MDIO_THUNDER dependencies
  netconsole: Remove duplicate "netconsole: " logging prefix
  igmp: acquire pmc lock for ip_mc_clear_src()
  r8152: give the device version
  net: rps: fix uninitialized symbol warning
  mac80211: don't send SMPS action frame in AP mode when not needed
  mac80211/wpa: use constant time memory comparison for MACs
  mac80211: set bss_info data before configuring the channel
  mac80211: remove 5/10 MHz rate code from station MLME
  mac80211: Fix incorrect condition when checking rx timestamp
  mac80211: don't look at the PM bit of BAR frames
  i40e: fix handling of HW ATR eviction
  ...
2017-06-15 18:09:47 +09:00
Linus Torvalds
54ed0f71f0 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fix from Herbert Xu:
 "This fixes a bug on sparc where we may dereference freed stack memory"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: Work around deallocated stack frame reference gcc bug on sparc.
2017-06-15 17:54:51 +09:00
Linus Torvalds
35e60a6b75 ACPI fixes for v4.12-rc6
- Revert a 4.11 ACPICA change that made assumptions which are not
    satisfied on some systems and caused the enumeration of resources
    to fail on them (Rafael Wysocki).
 
  - Add a mechanism to prevent tables from being unmapped prematurely
    due to reference counter overflows (Lv Zheng).
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Merge tag 'acpi-4.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "These revert an ACPICA commit from the 4.11 cycle that causes problems
  to happen on some systems and add a protection against possible kernel
  crashes due to table reference counter imbalance.

  Specifics:

   - Revert a 4.11 ACPICA change that made assumptions which are not
     satisfied on some systems and caused the enumeration of resources
     to fail on them (Rafael Wysocki).

   - Add a mechanism to prevent tables from being unmapped prematurely
     due to reference counter overflows (Lv Zheng)"

* tag 'acpi-4.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPICA: Tables: Mechanism to handle late stage acpi_get_table() imbalance
  Revert "ACPICA: Disassembler: Enhance resource descriptor detection"
2017-06-15 17:51:19 +09:00
Linus Torvalds
92091c438b Power management fixes for v4.12-rc6
- Revert a recent cpufreq schedutil governor change that caused some
    systems to behave undesirably (Rafael Wysocki).
 
  - Fix a cpufreq conservative governor issue introduced during the
    3.10 cycle that prevents it from working as expected in some
    situations (Tomasz Wilczyński).
 
  - Fix an error code path in the generic cpuidle driver for DT-based
    systems (Christophe Jaillet).
 
  - Fix three minor issues in devfreq drivers for Exynos (Arvind Yadav,
    Krzysztof Kozlowski).
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Merge tag 'pm-4.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These revert a recent cpufreq schedutil governor change that turned
  out to be problematic and fix a few minor issues in cpufreq, cpuidle
  and the Exynos devfreq drivers.

  Specifics:

   - Revert a recent cpufreq schedutil governor change that caused some
     systems to behave undesirably (Rafael Wysocki).

   - Fix a cpufreq conservative governor issue introduced during the
     3.10 cycle that prevents it from working as expected in some
     situations (Tomasz Wilczyński).

   - Fix an error code path in the generic cpuidle driver for DT-based
     systems (Christophe Jaillet).

   - Fix three minor issues in devfreq drivers for Exynos (Arvind Yadav,
     Krzysztof Kozlowski)"

* tag 'pm-4.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpuidle: dt: Add missing 'of_node_put()'
  cpufreq: conservative: Allow down_threshold to take values from 1 to 10
  Revert "cpufreq: schedutil: Reduce frequencies slower"
  PM / devfreq: exynos-ppmu: Staticize event list
  PM / devfreq: exynos-ppmu: Handle return value of clk_prepare_enable
  PM / devfreq: exynos-nocp: Handle return value of clk_prepare_enable
2017-06-15 17:47:46 +09:00
Linus Torvalds
b45edc2d02 Merge branch 'for-4.12/driver-matching-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Pull HID fix from Jiri Kosina:

 - ifdef-based bandaid for a long-standing issue with HID driver
   matching, avoiding regressions in cases where specific driver is not
   enabled in kernel .config, from Jiri Kosina

* 'for-4.12/driver-matching-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: let generic driver yield control iff specific driver has been enabled
2017-06-15 17:44:41 +09:00
Linus Torvalds
906e0c5b9f media fixes for v4.12-rc6
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Merge tag 'media/v4.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:

 - some build dependency issues at CEC core with randconfigs

 - fix an off by one error at vb2

 - a race fix at cec core

 - driver fixes at tc358743, sir_ir and rainshadow-cec

* tag 'media/v4.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  [media] media/cec.h: use IS_REACHABLE instead of IS_ENABLED
  [media] cec: race fix: don't return -ENONET in cec_receive()
  [media] sir_ir: infinite loop in interrupt handler
  [media] cec-notifier.h: handle unreachable CONFIG_CEC_CORE
  [media] cec: improve MEDIA_CEC_RC dependencies
  [media] vb2: Fix an off by one error in 'vb2_plane_vaddr'
  [media] rainshadow-cec: Fix missing spin_lock_init()
  [media] tc358743: fix register i2c_rd/wr function fix
2017-06-15 17:37:40 +09:00
Jia-Ju Bai
640f93cc6e i40e: Fix a sleep-in-atomic bug
The driver may sleep under a spin lock, and the function call path is:
i40e_ndo_set_vf_port_vlan (acquire the lock by spin_lock_bh)
  i40e_vsi_remove_pvid
    i40e_vlan_stripping_disable
      i40e_aq_update_vsi_params
        i40e_asq_send_command
          mutex_lock --> may sleep

To fixed it, the spin lock is released before "i40e_vsi_remove_pvid", and
the lock is acquired again after this function.

Signed-off-by: Jia-Ju Bai <baijiaju1990@163.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-14 23:45:22 -04:00
Rafael J. Wysocki
9522933454 Merge branch 'acpica-fixes'
* acpica-fixes:
  ACPICA: Tables: Mechanism to handle late stage acpi_get_table() imbalance
  Revert "ACPICA: Disassembler: Enhance resource descriptor detection"
2017-06-15 01:52:32 +02:00
Rafael J. Wysocki
f63e4f7d41 Merge branches 'pm-cpufreq', 'pm-cpuidle' and 'pm-devfreq'
* pm-cpufreq:
  cpufreq: conservative: Allow down_threshold to take values from 1 to 10
  Revert "cpufreq: schedutil: Reduce frequencies slower"

* pm-cpuidle:
  cpuidle: dt: Add missing 'of_node_put()'

* pm-devfreq:
  PM / devfreq: exynos-ppmu: Staticize event list
  PM / devfreq: exynos-ppmu: Handle return value of clk_prepare_enable
  PM / devfreq: exynos-nocp: Handle return value of clk_prepare_enable
2017-06-15 01:51:33 +02:00
David Howells
f7aec129a3 rxrpc: Cache the congestion window setting
Cache the congestion window setting that was determined during a call's
transmission phase when it finishes so that it can be used by the next call
to the same peer, thereby shortcutting the slow-start algorithm.

The value is stored in the rxrpc_peer struct and is accessed without
locking.  Each call takes the value that happens to be there when it starts
and just overwrites the value when it finishes.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-14 15:42:45 -04:00
Weilin Chang
0430a26054 liquidio: fix VF driver off-by-one bug when setting ethtool -C ethX rx-frames
Signed-off-by: Weilin Chang <weilin.chang@cavium.com>
Signed-off-by: Derek Chickles <derek.chickles@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-14 15:42:20 -04:00
Jesper Dangaard Brouer
849a44de91 net: don't global ICMP rate limit packets originating from loopback
Florian Weimer seems to have a glibc test-case which requires that
loopback interfaces does not get ICMP ratelimited.  This was broken by
commit c0303efeab ("net: reduce cycles spend on ICMP replies that
gets rate limited").

An ICMP response will usually be routed back-out the same incoming
interface.  Thus, take advantage of this and skip global ICMP
ratelimit when the incoming device is loopback.  In the unlikely event
that the outgoing it not loopback, due to strange routing policy
rules, ICMP rate limiting still works via peer ratelimiting via
icmpv4_xrlim_allow().  Thus, we should still comply with RFC1812
(section 4.3.2.8 "Rate Limiting").

This seems to fix the reproducer given by Florian.  While still
avoiding to perform expensive and unneeded outgoing route lookup for
rate limited packets (in the non-loopback case).

Fixes: c0303efeab ("net: reduce cycles spend on ICMP replies that gets rate limited")
Reported-by: Florian Weimer <fweimer@redhat.com>
Reported-by: "H.J. Lu" <hjl.tools@gmail.com>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-14 15:33:58 -04:00
Dan Carpenter
f5165a5492 net/mlxfw: fix a NULL dereference
If we hit this error path we end up returning ERR_PTR(0) which is NULL.
The caller is not expecting that so it results in a NULL dereference.

Fixes: 410ed13cae ("Add the mlxfw module for Mellanox firmware flash process")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-14 15:32:18 -04:00
Dan Carpenter
c4f65b09b4 net/act_pedit: fix an error code
I'm reviewing static checker warnings where we do ERR_PTR(0), which is
the same as NULL.  I'm pretty sure we intended to return ERR_PTR(-EINVAL)
here.  Sometimes these bugs lead to a NULL dereference but I don't
immediately see that problem here.

Fixes: 71d0ed7079 ("net/act_pedit: Support using offset relative to the conventional network headers")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Amir Vadai <amir@vadai.me>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-14 15:24:18 -04:00
Paolo Abeni
7608894e43 net: use skb_unref() in napi_consume_skb()
The commit 83ada39bb79d ("net: factor out a helper to decrement the
skb refcount") provided and used a helper for decrementing skb usage,
but I missed at least a spot for it.

This change remove some more duplicated code reusing skb_unref() in
napi_consume_skb(), too. The helper uses an additional, unneeded
unlikely(!skb) test - napi_consume_skb() already check it a few lines
above - but the compiler is smart enough to optimize the duplicated
test out.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-14 15:23:51 -04:00