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Slow start now increases cwnd by 1 if an ACK acknowledges some packets,
regardless the number of packets. Consequently slow start performance
is highly dependent on the degree of the stretch ACKs caused by
receiver or network ACK compression mechanisms (e.g., delayed-ACK,
GRO, etc). But slow start algorithm is to send twice the amount of
packets of packets left so it should process a stretch ACK of degree
N as if N ACKs of degree 1, then exits when cwnd exceeds ssthresh. A
follow up patch will use the remainder of the N (if greater than 1)
to adjust cwnd in the congestion avoidance phase.
In addition this patch retires the experimental limited slow start
(LSS) feature. LSS has multiple drawbacks but questionable benefit. The
fractional cwnd increase in LSS requires a loop in slow start even
though it's rarely used. Configuring such an increase step via a global
sysctl on different BDPS seems hard. Finally and most importantly the
slow start overshoot concern is now better covered by the Hybrid slow
start (hystart) enabled by default.
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Applications have started to use Fast Open (e.g., Chrome browser has
such an optional flag) and the feature has gone through several
generations of kernels since 3.7 with many real network tests. It's
time to enable this flag by default for applications to test more
conveniently and extensively.
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Conflicts:
drivers/net/ethernet/emulex/benet/be.h
drivers/net/netconsole.c
net/bridge/br_private.h
Three mostly trivial conflicts.
The net/bridge/br_private.h conflict was a function signature (argument
addition) change overlapping with the extern removals from Joe Perches.
In drivers/net/netconsole.c we had one change adjusting a printk message
whilst another changed "printk(KERN_INFO" into "pr_info(".
Lastly, the emulex change was a new inline function addition overlapping
with Joe Perches's extern removals.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Joby Poriyath provided a xen-netback patch to reduce the size of
xenvif structure as some netdev allocation could fail under
memory pressure/fragmentation.
This patch is handling the problem at the core level, allowing
any netdev structures to use vmalloc() if kmalloc() failed.
As vmalloc() adds overhead on a critical network path, add __GFP_REPEAT
to kzalloc() flags to do this fallback only when really needed.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Joby Poriyath <joby.poriyath@citrix.com>
Cc: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Correct spelling typo in Documentation/networking
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Various typo fixes to netdev-FAQ.txt:
- capitalize Linux
- hyphenate dual-word adjectives
- minor punctuation fixes
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Conflicts:
drivers/net/usb/qmi_wwan.c
include/net/dst.h
Trivial merge conflicts, both were overlapping changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull networking fixes from David Miller:
"Sorry I let so much accumulate, I was in Buffalo and wanted a few
things to cook in my tree for a while before sending to you. Anyways,
it's a lot of little things as usual at this stage in the game"
1) Make bonding MAINTAINERS entry reflect reality, from Andy
Gospodarek.
2) Fix accidental sock_put() on timewait mini sockets, from Eric
Dumazet.
3) Fix crashes in l2tp due to mis-handling of ipv4 mapped ipv6
addresses, from François CACHEREUL.
4) Fix heap overflow in __audit_sockaddr(), from the eagle eyed Dan
Carpenter.
5) tcp_shifted_skb() doesn't take handle FINs properly, from Eric
Dumazet.
6) SFC driver bug fixes from Ben Hutchings.
7) Fix TX packet scheduling wedge after channel change in ath9k driver,
from Felix Fietkau.
8) Fix user after free in BPF JIT code, from Alexei Starovoitov.
9) Source address selection test is reversed in
__ip_route_output_key(), fix from Jiri Benc.
10) VLAN and CAN layer mis-size netlink attributes, from Marc
Kleine-Budde.
11) Fix permission checks in sysctls to use current_euid() instead of
current_uid(). From Eric W Biederman.
12) IPSEC policies can go away while a timer is still pending for them,
add appropriate ref-counting to fix, from Steffen Klassert.
13) Fix mis-programming of FDR and RMCR registers on R8A7740 sh_eth
chips, from Nguyen Hong Ky and Simon Horman.
14) MLX4 forgets to DMA unmap pages on RX, fix from Amir Vadai.
15) IPV6 GRE tunnel MTU upper limit is miscalculated, from Oussama
Ghorbel.
16) Fix typo in fq_change(), we were assigning "initial quantum" to
"quantum". From Eric Dumazet.
17) Set a more appropriate sk_pacing_rate for non-TCP sockets, otherwise
FQ packet scheduler does not pace those flows properly. Also from
Eric Dumazet.
18) rtlwifi miscalculates packet pointers, from Mark Cave-Ayland.
19) l2tp_xmit_skb() can be called from process context, not just softirq
context, so we must always make sure to BH disable around it. From
Eric Dumazet.
20) On qdisc reset, we forget to purge the RB tree of SKBs in netem
packet scheduler. From Stephen Hemminger.
21) Fix info leak in farsync WAN driver ioctl() handler, from Dan
Carpenter and Salva Peiró.
22) Fix PHY reset and other issues in dm9000 driver, from Nikita
Kiryanov and Michael Abbott.
23) When hardware can do SCTP crc32 checksums, we accidently don't
disable the csum offload when IPSEC transformations have been
applied. From Fan Du and Vlad Yasevich.
24) Tail loss probing in TCP leaves the socket in the wrong congestion
avoidance state. From Yuchung Cheng.
25) In CPSW driver, enable NAPI before interrupts are turned on, from
Markus Pargmann.
26) Integer underflow and dual-assignment in YAM hamradio driver, from
Dan Carpenter.
27) If we are going to mangle a packet in tcp_set_skb_tso_segs() we must
unclone it. This fixes various hard to track down crashes in
drivers where the SKBs ->gso_segs was changing right from underneath
the driver during TX queueing. From Eric Dumazet.
28) Fix the handling of VLAN IDs, and in particular the special IDs 0
and 4095, in the bridging layer. From Toshiaki Makita.
29) Another info leak, this time in wanxl WAN driver, from Salva Peiró.
30) Fix race in socket credential passing, from Daniel Borkmann.
31) WHen NETLABEL is disabled, we don't validate CIPSO packets properly,
from Seif Mazareeb.
32) Fix identification of fragmented frames in ipv4/ipv6 UDP
Fragmentation Offload output paths, from Jiri Pirko.
33) Virtual Function fixes in bnx2x driver from Yuval Mintz and Ariel
Elior.
34) When we removed the explicit neighbour pointer from ipv6 routes a
slight regression was introduced for users such as IPVS, xt_TEE, and
raw sockets. We mix up the users requested destination address with
the routes assigned nexthop/gateway. From Julian Anastasov and
Simon Horman.
35) Fix stack overruns in rt6_probe(), the issue is that can end up
doing two full packet xmit paths at the same time when emitting
neighbour discovery messages. From Hannes Frederic Sowa.
36) davinci_emac driver doesn't handle IFF_ALLMULTI correctly, from
Mariusz Ceier.
37) Make sure to set TCP sk_pacing_rate after the first legitimate RTT
sample, from Neal Cardwell.
38) Wrong netlink attribute passed to xfrm_replay_verify_len(), from
Steffen Klassert.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (152 commits)
ax88179_178a: Add VID:DID for Samsung USB Ethernet Adapter
ax88179_178a: Correct the RX error definition in RX header
Revert "bridge: only expire the mdb entry when query is received"
tcp: initialize passive-side sk_pacing_rate after 3WHS
davinci_emac.c: Fix IFF_ALLMULTI setup
mac802154: correct a typo in ieee802154_alloc_device() prototype
ipv6: probe routes asynchronous in rt6_probe
netfilter: nf_conntrack: fix rt6i_gateway checks for H.323 helper
ipv6: fill rt6i_gateway with nexthop address
ipv6: always prefer rt6i_gateway if present
bnx2x: Set NETIF_F_HIGHDMA unconditionally
bnx2x: Don't pretend during register dump
bnx2x: Lock DMAE when used by statistic flow
bnx2x: Prevent null pointer dereference on error flow
bnx2x: Fix config when SR-IOV and iSCSI are enabled
bnx2x: Fix Coalescing configuration
bnx2x: Unlock VF-PF channel on MAC/VLAN config error
bnx2x: Prevent an illegal pointer dereference during panic
bnx2x: Fix Maximum CoS estimation for VFs
drivers: net: cpsw: fix kernel warn during iperf test with interrupt pacing
...
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AP isolation has to be enabled on one VLAN interface only.
This patch moves the AP isolation attribute to the per-vlan
interface attribute set, enabling it to have a different
value depending on the selected vlan.
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
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Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
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Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
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My university will stop email service for alumni in january 2014, please
use my new e-mail address instead.
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
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Pull device tree fixes and reverts from Grant Likely:
"One bug fix and three reverts. The reverts back out the slightly
controversial feeding the entire device tree into the random pool and
the reserved-memory binding which isn't fully baked yet. Expect the
reserved-memory patches at least to resurface for v3.13.
The bug fixes removes a scary but harmless warning on SPARC that was
introduced in the v3.12 merge window. v3.13 will contain a proper fix
that makes the new code work on SPARC.
On the plus side, the diffstat looks *awesome*. I love removing lines
of code"
* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux:
Revert "drivers: of: add initialization code for dma reserved memory"
Revert "ARM: init: add support for reserved memory defined by device tree"
Revert "of: Feed entire flattened device tree into the random pool"
of: fix unnecessary warning on missing /cpus node
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This reverts commit 9d8eab7af79cb4ce2de5de39f82c455b1f796963. There is
still no consensus on the bindings for the reserved memory and various
drawbacks of the proposed solution has been shown, so the best now is to
revert it completely and start again from scratch later.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
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Pull ACPI and power management fixes from Rafael Wysocki:
"These fix two recent bugs in ACPIPHP (ACPI-based PCI hotplug) and
update a bunch of web links and e-mail addresses in MAINTAINERS, docs
and Kconfig that either are stale or will expire soon.
Specifics:
- The WARN_ON() in acpiphp_enumerate_slots() triggers as a false
positive in some cases, so drop it.
- Add a missing pci_dev_put() to an error code path in
acpiphp_enumerate_slots().
- Replace my old e-mail address that's going to expire with a new
one.
- Update ACPI web links and git tree information in MAINTAINERS.
- Update links to the Linux-ACPI project's page in MAINTAINERS.
- Update some stale links and e-mail addresses under Documentation
and in the ACPI Kconfig file"
* tag 'pm+acpi-3.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / hotplug / PCI: Drop WARN_ON() from acpiphp_enumerate_slots()
ACPI / hotplug / PCI: Fix error code path in acpiphp_enumerate_slots()
ACPI / PM / Documentation: Replace outdated project links and addresses
MAINTAINERS / ACPI: Update links to the Linux-ACPI project web page
MAINTAINERS / ACPI: Update links and git tree information
MAINTAINERS / Documentation: Update Rafael's e-mail address
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Pull sound fixes from Takashi Iwai:
"All stable fixes except for a trivial headset mic fixup: the removal
of bogus frame checks in snd-usb-usx2y driver that have regressed in
the recent kernel versions, the HD-audio HDMI channel map fix, and a
few HD-audio device-specific fixes"
* tag 'sound-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Sony VAIO Pro 13 (haswell) now has a working headset jack
ALSA: hda - Add a headset mic model for ALC269 and friends
ALSA: hda - Fix microphone for Sony VAIO Pro 13 (Haswell model)
ALSA: hda - Add fixup for ASUS N56VZ
ALSA: hda - hdmi: Fix channel map switch not taking effect
ALSA: hda - Fix mono speakers and headset mic on Dell Vostro 5470
ALSA: snd-usb-usx2y: remove bogus frame checks
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Some links to projects web pages and e-mail addresses in ACPI/PM
documentation and Kconfig are outdated, so update them.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Using the headset mic model will cause the headset mic to be labeled
"headset mic" instead of just "mic".
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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This is replaced by a userspace program, we don't need this
functionality to bloat the kernel.
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
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Conflicts:
include/linux/netdevice.h
net/core/sock.c
Trivial merge issues.
Removal of "extern" for functions declaration in netdevice.h
at the same time "const" was added to an argument.
Two parallel line additions in net/core/sock.c
Signed-off-by: David S. Miller <davem@davemloft.net>
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The e-mail address rjw@sisk.pl that I have been using for quite some
time is going to expire at one point, so replace it with a new one,
rjw@rjwysocki.net, everywhere in MAINTAINERS and Documentation/ABI.
Signed-off-by: Rafael J. Wysocki <rjw@rjwysocki.net>
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Add new documentation for encap2+3 and encap3+4, also update the formula
for the old modes due to the changes.
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull ARM SoC fixes from Olof Johansson:
"We have a fairly large batch of fixes this time around, mostly just
due to various platforms all having a fix or two more than usual.
Worth pointing out are:
- A fix for EDMA on Davinci/OMAP where channel allocation broke with
the DT conversion. Due to some miscommunication we didn't
understand the impact of the breakage, so we were pushing back on
it for 3.12, but it sounds like it's actually breaking quite a few
people out there.
- A bunch of fixes for Marvell platforms, some straggling fixes for
merge window fallout and some fixes for a couple of the platforms
(Netgear RN102 in particular).
- A fix for a race between multi-cluster power management and cpu
hotplug on Versatile Express.
And a bunch of other smaller fixes that all add up.
We'll be switching over into stricter regressions-only mode from here
on out"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (31 commits)
ARM: multi_v7_defconfig: add SDHCI for i.MX
bus: mvebu-mbus: Fix optional pcie-mem/io-aperture properties
ARM: mvebu: add missing DT Mbus ranges and relocate PCIe DT nodes for RN102
ARM: at91: sam9g45: shutdown ddr1 too when rebooting
MAINTAINERS: ARM: SIRF: use kernel.org mail box
MAINTAINERS: ARM: SIRF: add missed drivers into maintain list
ARM: edma: Fix clearing of unused list for DT DMA resources
ARM: vexpress: tc2: fix hotplug/idle/kexec race on cluster power down
ARM: dts: sirf: fix interrupt and dma prop of VIP for prima2 and atlas6
ARM: dts: sirf: fix the ranges of peri-iobrg of prima2
ARM: dts: makefile: build atlas6-evb.dtb for ARCH_ATLAS6
ARM: dts: sirf: fix fifosize, clks, dma channels for UART
ARM: mvebu: Add DT entry for ReadyNAS 102 to use gpio-poweroff driver
ARM: mvebu: fix ReadyNAS 102 Power button GPIO to make it active high
ARM: mach-integrator: Add stub for pci_v3_early_init() for !CONFIG_PCI
ARM: shmobile: Remove #gpio-ranges-cells DT property
gpio: rcar: Remove #gpio-range-cells DT property usage
ARM: shmobile: armadillo: fixup ether pinctrl naming
ARM: shmobile: Lager: add Micrel KSZ8041 PHY fixup
ARM: shmobile: update SDHI DT compatibility string to the <unit>-<soc> format
...
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Use the precalculated size instead of obfuscating the message length
calculation by first subtracting the netlink header length from size
and then use the NLMSG_LENGTH() macro to add it back again.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Conflicts:
drivers/net/ethernet/emulex/benet/be.h
drivers/net/usb/qmi_wwan.c
drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h
include/net/netfilter/nf_conntrack_synproxy.h
include/net/secure_seq.h
The conflicts are of two varieties:
1) Conflicts with Joe Perches's 'extern' removal from header file
function declarations. Usually it's an argument signature change
or a function being added/removed. The resolutions are trivial.
2) Some overlapping changes in qmi_wwan.c and be.h, one commit adds
a new value, another changes an existing value. That sort of
thing.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull networking changes from David Miller:
1) Multiply in netfilter IPVS can overflow when calculating destination
weight. From Simon Kirby.
2) Use after free fixes in IPVS from Julian Anastasov.
3) SFC driver bug fixes from Daniel Pieczko.
4) Memory leak in pcan_usb_core failure paths, from Alexey Khoroshilov.
5) Locking and encapsulation fixes to serial line CAN driver, from
Andrew Naujoks.
6) Duplex and VF handling fixes to bnx2x driver from Yaniv Rosner,
Eilon Greenstein, and Ariel Elior.
7) In lapb, if no other packets are outstanding, T1 timeouts actually
stall things and no packet gets sent. Fix from Josselin Costanzi.
8) ICMP redirects should not make it to the socket error queues, from
Duan Jiong.
9) Fix bugs in skge DMA mapping error handling, from Nikulas Patocka.
10) Fix setting of VLAN priority field on via-rhine driver, from Roget
Luethi.
11) Fix TX stalls and VLAN promisc programming in be2net driver from
Ajit Khaparde.
12) Packet padding doesn't get handled correctly in new usbnet SG
support code, from Ming Lei.
13) Fix races in netdevice teardown wrt. network namespace closing.
From Eric W. Biederman.
14) Fix potential missed initialization of net_secret if not TCP
connections are openned. From Eric Dumazet.
15) Cinterion PLXX product ID in qmi_wwan driver is wrong, from
Aleksander Morgado.
16) skb_cow_head() can change skb->data and thus packet header pointers,
don't use stale ip_hdr reference in ip_tunnel code.
17) Backend state transition handling fixes in xen-netback, from Paul
Durrant.
18) Packet offset for AH protocol is handled wrong in flow dissector,
from Eric Dumazet.
19) Taking down an fq packet scheduler instance can leave stale packets
in the queues, fix from Eric Dumazet.
20) Fix performance regressions introduced by TCP Small Queues. From
Eric Dumazet.
21) IPV6 GRE tunneling code calculates max_headroom incorrectly, from
Hannes Frederic Sowa.
22) Multicast timer handlers in ipv4 and ipv6 can be the last and final
reference to the ipv4/ipv6 specific network device state, so use the
reference put that will check and release the object if the
reference hits zero. From Salam Noureddine.
23) Fix memory corruption in ip_tunnel driver, and use skb_push()
instead of __skb_push() so that similar bugs are less hard to find.
From Steffen Klassert.
24) Add forgotten hookup of rtnl_ops in SIT and ip6tnl drivers, from
Nicolas Dichtel.
25) fq scheduler doesn't accurately rate limit in certain circumstances,
from Eric Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (103 commits)
pkt_sched: fq: rate limiting improvements
ip6tnl: allow to use rtnl ops on fb tunnel
sit: allow to use rtnl ops on fb tunnel
ip_tunnel: Remove double unregister of the fallback device
ip_tunnel_core: Change __skb_push back to skb_push
ip_tunnel: Add fallback tunnels to the hash lists
ip_tunnel: Fix a memory corruption in ip_tunnel_xmit
qlcnic: Fix SR-IOV configuration
ll_temac: Reset dma descriptors indexes on ndo_open
skbuff: size of hole is wrong in a comment
ipv6 mcast: use in6_dev_put in timer handlers instead of __in6_dev_put
ipv4 igmp: use in_dev_put in timer handlers instead of __in_dev_put
ethernet: moxa: fix incorrect placement of __initdata tag
ipv6: gre: correct calculation of max_headroom
powerpc/83xx: gianfar_ptp: select 1588 clock source through dts file
Revert "powerpc/83xx: gianfar_ptp: select 1588 clock source through dts file"
bonding: Fix broken promiscuity reference counting issue
tcp: TSQ can use a dynamic limit
dm9601: fix IFF_ALLMULTI handling
pkt_sched: fq: qdisc dismantle fixes
...
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Currently IEEE 1588 timer reference clock source is determined through
hard-coded value in gianfar_ptp driver. This patch allows to select ptp
clock source by means of device tree file node.
For instance:
fsl,cksel = <0>;
for using external (TSEC_TMR_CLK input) high precision timer
reference clock.
Other acceptable values:
<1> : eTSEC system clock
<2> : eTSEC1 transmit clock
<3> : RTC clock input
When this attribute isn't used, eTSEC system clock will serve as
IEEE 1588 timer reference clock.
Signed-off-by: Aida Mynzhasova <aida.mynzhasova@skitlab.ru>
Acked-by: Kumar Gala <galak@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This reverts commit 894116bd0e9b7749a0c4b6c62dec13c2a0ccef68.
I applied the wrong version of this patch, correct
version coming up.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Recently commit bab55417b10c ("block: support embedded device command
line partition") introduced CONFIG_CMDLINE_PARSER. However, that name
is too generic and sounds like it enables/disables generic kernel boot
arg processing, when it really is block specific.
Before this option becomes a part of a full/final release, add the BLK_
prefix to it so that it is clear in absence of any other context that it
is block specific.
In addition, fix up the following less critical items:
- help text was not really at all helpful.
- index file for Documentation was not updated
- add the new arg to Documentation/kernel-parameters.txt
- clarify wording in source comments
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Cai Zhiyong <caizhiyong@huawei.com>
Cc: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Han Pingtian found a typo in Documentation/kernel-parameters.txt about
"kernelcore=", that "kernelcore" should be replaced with "Movable" here.
Signed-off-by: Weiping Pan <wpan@redhat.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Currently IEEE 1588 timer reference clock source is determined through
hard-coded value in gianfar_ptp driver. This patch allows to select ptp
clock source by means of device tree file node.
For instance:
fsl,cksel = <0>;
for using external (TSEC_TMR_CLK input) high precision timer
reference clock.
Other acceptable values:
<1> : eTSEC system clock
<2> : eTSEC1 transmit clock
<3> : RTC clock input
When this attribute isn't used, eTSEC system clock will serve as
IEEE 1588 timer reference clock.
Signed-off-by: Aida Mynzhasova <aida.mynzhasova@skitlab.ru>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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ASoC: Fixes for v3.12
Nothing too exciting here, all driver specific except for the fix from
Liam for DPCM systems which have both front and back end DAIs which is
not yet used by anything in mainline.
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Pull tty/serial fixes from Greg KH:
"Here are some serial at tty driver fixes for 3.12-rc3
The serial driver fixes some kref leaks, documentation is moved to the
proper places, and the tty and n_tty fixes resolve some reported
regressions. There is still one outstanding tty regression fix that
isn't in here yet, as I want to test it out some more, it will be sent
for 3.12-rc4 if it checks out"
* tag 'tty-3.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: ar933x_uart: move devicetree binding documentation
tty: Fix SIGTTOU not sent with tcflush()
n_tty: Fix EOF push index when termios changes
serial: pch_uart: remove unnecessary tty_port_tty_get
serial: pch_uart: fix tty-kref leak in dma-rx path
serial: pch_uart: fix tty-kref leak in rx-error path
serial: tegra: fix tty-kref leak
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Pull DeviceTree fixes from Rob Herring:
"Clean-up to fix some warnings for !OF builds and spelling fixes in
docs:
- Clean-up openrisc prom.h
- Fix warnings caused by of_irq.h ifdefs
- Spelling fix for Synopsys"
* tag 'devicetree-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
dts: Fix misspelling of Synopsys
of: clean-up ifdefs in of_irq.h
openrisc: clean-up prom.h
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Pull sound fixes from Takashi Iwai:
"Nothing too serious here: a couple of compress-offload core fixes,
Haswell HDMI audio fix, a fixup for new MacBook Airs and a few COEF
setups for ALC283 mic problems"
* tag 'sound-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Enable internal mic on a Thinkpad machine with ALC283
ALSA: hda - Fix Internal Mic boost can't control with ALC283
ALSA: hda - Add documentation for CS4208 fixups
ALSA: hda - Add fixup for MacBook Air 6,1 and 6,2 with CS4208 codec
ALSA : hda - not use assigned converters for all unused pins
ALSA: compress: Make sure we trigger STOP before closing the stream.
ALSA: compress: Fix compress device unregister.
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Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Commit 'tty: ar933x_uart: add device tree support
and binding documentation' introduced a new doc in
bindins/tty/serial.
According to a recent thread [1] on the linux-serial
list, the binding documentation of serial drivers
should be added into bindings/serial.
Move the documentation of qca,ar9330-uart to the
correct place.
1. http://marc.info/?l=linux-serial&m=137771295411517
Cc: devicetree@vger.kernel.org
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Pull Xen fixes from Konrad Rzeszutek Wilk:
"Bug-fixes and one update to the kernel-paramters.txt documentation.
- Fix PV spinlocks triggering jump_label code bug
- Remove extraneous code in the tpm front driver
- Fix ballooning out of pages when non-preemptible
- Fix deadlock when using a 32-bit initial domain with large amount
of memory
- Add xen_nopvpsin parameter to the documentation"
* tag 'stable/for-linus-3.12-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/spinlock: Document the xen_nopvspin parameter.
xen/p2m: check MFN is in range before using the m2p table
xen/balloon: don't alloc page while non-preemptible
xen: Do not enable spinlocks before jump_label_init() has executed
tpm: xen-tpmfront: Remove the locality sysfs attribute
tpm: xen-tpmfront: Fix default durations
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Which disables in the ticketlock slowpath the Xen PV optimization's.
Useful for diagnosing issues and comparing benchmarks in
over-commit CPU scenarios.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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s/Synopsis/Synopsys
s/synopsis/synopsys
Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
Cc: Pavel Machek <pavel@denx.de>
CC: Arnd Bergmann <arnd@arndb.de>
CC: Olof Johansson <olof@lixom.net>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Chris Ball <cjb@laptop.org>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Seungwon Jeon <tgih.jun@samsung.com>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: devicetree@vger.kernel.org
Cc: linux-mmc@vger.kernel.org
CC: linux-arm-kernel@lists.infradead.org
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
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The cpsw currently lacks code to properly set up the hardware interface
mode on AM33xx. Other platforms might be equally affected.
Usually, the bootloader will configure the control module register, so
probably that's why such support wasn't needed in the past. In suspend
mode though, this register is modified, and so it needs reprogramming
after resume.
This patch adds a new driver in which hardware interface can configure
correct register bits when the slave is opened.
The AM33xx also has a bit for each slave to configure the RMII reference
clock direction. Setting it is now supported by a per-slave DT property.
This code path introducted by this patch is currently exclusive for
am33xx and same can be extened to various platforms via the DT compatibility
property.
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Tested-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch add a method into testptp.c to measure the time offset
between phc and system clock through the ioctl PTP_SYS_OFFSET.
Signed-off-by: Dong Zhu <bluezhudong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently DT compatibility strings of both types can be found in the kernel
sources: <unit>-<soc> and <soc>-<unit>, whereas a unique format should be
followed and the former one is preferred. This patch converts the SDHI
MMC driver and its users to the common standard. This is safe for now, since
ATM no real products are using this driver with DT.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Acked-by: Chris Ball <cjb@laptop.org>
[Removed r8a7740.dtsi portion as it is not applicable]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Pull ARM64 fixes from Catalin Marinas:
- Compat register fault reporting fix
- Documentation clarification on tagged pointers
- hwcap widened to 64-bit (user space already reading it as 64-bit)
* tag 'arm64-stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
arm64: Widen hwcap to be 64 bit
arm64: Correctly report LR and SP for compat tasks
arm64: documentation: tighten up tagged pointer documentation
arm64: Make do_bad_area() function static
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Commit d50240a5f6ce ("arm64: mm: permit use of tagged pointers at EL0")
added support for tagged pointers in userspace, but the corresponding
update to Documentation/ contained some imprecise statements.
This patch fixes up some minor ambiguities in the text, hopefully making
it more clear about exactly what the kernel expects from user virtual
addresses.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Pull networking fixes from David Miller:
1) If the local_df boolean is set on an SKB we have to allocate a
unique ID even if IP_DF is set in the ipv4 headers, from Ansis
Atteka.
2) Some fixups for the new chipset support that went into the sfc
driver, from Ben Hutchings.
3) Because SCTP bypasses a good chunk of, and actually duplicates, the
logic of the ipv6 output path, some IPSEC things don't get done
properly. Integrate SCTP better into the ipv6 output path so that
these problems are fixed and such issues don't get missed in the
future either. From Daniel Borkmann.
4) Fix skge regressions added by the DMA mapping error return checking
added in v3.10, from Mikulas Patocka.
5) Kill some more IRQF_DISABLED references, from Michael Opdenacker.
6) Fix races and deadlocks in the bridging code, from Hong Zhiguo.
7) Fix error handling in tun_set_iff(), in particular don't leak
resources. From Jason Wang.
8) Prevent format-string injection into xen-netback driver, from Kees
Cook.
9) Fix regression added to netpoll ARP packet handling, in particular
check for the right ETH_P_ARP protocol code. From Sonic Zhang.
10) Try to deal with AMD IOMMU errors when using r8169 chips, from
Francois Romieu.
11) Cure freezes due to recent changes in the rt2x00 wireless driver,
from Stanislaw Gruszka.
12) Don't do SPI transfers (which can sleep) in interrupt context in
cw1200 driver, from Solomon Peachy.
13) Fix LEDs handling bug in 5720 tg3 chips already handled for 5719.
From Nithin Sujir.
14) Make xen_netbk_count_skb_slots() count the actual number of slots
that will be used, taking into consideration packing and other
issues that the transmit path will run into. From David Vrabel.
15) Use the correct maximum age when calculating the bridge
message_age_timer, from Chris Healy.
16) Get rid of memory leaks in mcs7780 IRDA driver, from Alexey
Khoroshilov.
17) Netfilter conntrack extensions were converted to RCU but are not
always freed properly using kfree_rcu(). Fix from Michal Kubecek.
18) VF reset recovery not being done correctly in qlcnic driver, from
Manish Chopra.
19) Fix inverted test in ATM nicstar driver, from Andy Shevchenko.
20) Missing workqueue destroy in cxgb4 error handling, from Wei Yang.
21) Internal switch not initialized properly in bgmac driver, from Rafał
Miłecki.
22) Netlink messages report wrong local and remote addresses in IPv6
tunneling, from Ding Zhi.
23) ICMP redirects should not generate socket errors in DCCP and SCTP.
We're still working out how this should be handled for RAW and UDP
sockets. From Daniel Borkmann and Duan Jiong.
24) We've had several bugs wherein the network namespace's loopback
device gets accessed after it is free'd, NULL it out so that we can
catch these problems more readily. From Eric W Biederman.
25) Fix regression in TCP RTO calculations, from Neal Cardwell.
26) Fix too early free of xen-netback network device when VIFs still
exist. From Paul Durrant.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (87 commits)
netconsole: fix a deadlock with rtnl and netconsole's mutex
netpoll: fix NULL pointer dereference in netpoll_cleanup
skge: fix broken driver
ip: generate unique IP identificator if local fragmentation is allowed
ip: use ip_hdr() in __ip_make_skb() to retrieve IP header
xen-netback: Don't destroy the netdev until the vif is shut down
net:dccp: do not report ICMP redirects to user space
cnic: Fix crash in cnic_bnx2x_service_kcq()
bnx2x, cnic, bnx2i, bnx2fc: Fix bnx2i and bnx2fc regressions.
vxlan: Avoid creating fdb entry with NULL destination
tcp: fix RTO calculated from cached RTT
drivers: net: phy: cicada.c: clears warning Use #include <linux/io.h> instead of <asm/io.h>
net loopback: Set loopback_dev to NULL when freed
batman-adv: set the TAG flag for the vid passed to BLA
netfilter: nfnetlink_queue: use network skb for sequence adjustment
net: sctp: rfc4443: do not report ICMP redirects to user space
net: usb: cdc_ether: use usb.h macros whenever possible
net: usb: cdc_ether: fix checkpatch errors and warnings
net: usb: cdc_ether: Use wwan interface for Telit modules
ip6_tunnels: raddr and laddr are inverted in nl msg
...
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Pull vfs fixes from Al Viro:
"atomic_open-related fixes (Miklos' series, with EEXIST-related parts
replaced with fix in fs/namei.c:atomic_open() instead of messing with
the instances) + race fix in autofs + leak on failure exit in 9p"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
9p: don't forget to destroy inode cache if fscache registration fails
atomic_open: take care of EEXIST in no-open case with O_CREAT|O_EXCL in fs/namei.c
vfs: don't set FILE_CREATED before calling ->atomic_open()
nfs: set FILE_CREATED
gfs2: set FILE_CREATED
cifs: fix filp leak in cifs_atomic_open()
vfs: improve i_op->atomic_open() documentation
autofs4: close the races around autofs4_notify_daemon()
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Pull scheduler fixes from Ingo Molnar:
"Misc fixes"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched: Fix comment for sched_info_depart
sched/Documentation: Update sched-design-CFS.txt documentation
sched/debug: Take PID namespace into account
sched/fair: Fix small race where child->se.parent,cfs_rq might point to invalid ones
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Fix documentation of ->atomic_open() and related functions: finish_open()
and finish_no_open(). Also add details that seem to be unclear and a
source of bugs (some of which are fixed in the following series).
Cc-ing maintainers of all filesystems implementing ->atomic_open().
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: Eric Van Hensbergen <ericvh@gmail.com>
Cc: Sage Weil <sage@inktank.com>
Cc: Steve French <sfrench@samba.org>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Pull timer code update from Thomas Gleixner:
- armada SoC clocksource overhaul with a trivial merge conflict
- Minor improvements to various SoC clocksource drivers
* 'timers/core' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clocksource: armada-370-xp: Add detailed clock requirements in devicetree binding
clocksource: armada-370-xp: Get reference fixed-clock by name
clocksource: armada-370-xp: Replace WARN_ON with BUG_ON
clocksource: armada-370-xp: Fix device-tree binding
clocksource: armada-370-xp: Introduce new compatibles
clocksource: armada-370-xp: Use CLOCKSOURCE_OF_DECLARE
clocksource: armada-370-xp: Simplify TIMER_CTRL register access
clocksource: armada-370-xp: Use BIT()
ARM: timer-sp: Set dynamic irq affinity
ARM: nomadik: add dynamic irq flag to the timer
clocksource: sh_cmt: 32-bit control register support
clocksource: em_sti: Convert to devm_* managed helpers
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Yuchung Cheng
David S. Miller
Eric Dumazet
Masanari Iida
Randy Dunlap
Linus Torvalds
Antonio Quartulli
Marek Lindner
Antonio Quartulli
Simon Wunderlich
Marek Szyprowski
Rafael J. Wysocki
David Henningsson
Simon Wunderlich
Rafael J. Wysocki
Nikolay Aleksandrov
Mathias Krause
Aida Mynzhasova
Paul Gortmaker
Weiping Pan
Takashi Iwai
Gabor Juhos
Konrad Rzeszutek Wilk
Dinh Nguyen
Mugunthan V N
Dong Zhu
Guennadi Liakhovetski
Will Deacon
Miklos Szeredi