2
0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-25 21:54:06 +08:00
Commit Graph

475875 Commits

Author SHA1 Message Date
David S. Miller
a4b4a2b7f9 Merge tag 'master-2014-10-02' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next
John W. Linville says:

====================
pull request: wireless-next 2014-10-03

Please pull tihs batch of updates intended for the 3.18 stream!

For the iwlwifi bits, Emmanuel says:

"I have here a few things that depend on the latest mac80211's changes:
RRM, TPC, Quiet Period etc...  Eyal keeps improving our rate control
and we have a new device ID. This last patch should probably have
gone to wireless.git, but at that stage, I preferred to send it to
-next and CC stable."

For (most of) the Atheros bits, Kalle says:

"The only new feature is testmode support from me. Ben added a new method
to crash the firmware with an assert for debug purposes. As usual, we
have lots of smaller fixes from Michal. Matteo fixed a Kconfig
dependency with debugfs. I fixed some warnings recently added to
checkpatch."

For the NFC bits, Samuel says:

"We've had major updates for TI and ST Microelectronics drivers, and a
few NCI related changes.

For TI's trf7970a driver:

- Target mode support for trf7970a
- Suspend/resume support for trf7970a
- DT properties additions to handle different quirks
- A bunch of fixes for smartphone IOP related issues

For ST Microelectronics' ST21NFCA and ST21NFCB drivers:

- ISO15693 support for st21nfcb
- checkpatch and sparse related warning fixes
- Code cleanups and a few minor fixes

Finally, Marvell added ISO15693 support to the NCI stack, together with a
couple of NCI fixes."

For the Bluetooth bits, Johan says:

"This 3.18 pull request replaces the one I did on Monday ("bluetooth-next
2014-09-22", which hasn't been pulled yet). The additions since the last
request are:

 - SCO connection fix for devices not supporting eSCO
 - Cleanups regarding the SCO establishment logic
 - Remove unnecessary return value from logging functions
 - Header compression fix for 6lowpan
 - Cleanups to the ieee802154/mrf24j40 driver

Here's a copy from previous request that this one replaces:

'
Here are some more patches for 3.18. They include various fixes to the
btusb HCI driver, a fix for LE SMP, as well as adding Jukka to the
MAINTAINERS file for generic 6LoWPAN (as requested by Alexander Aring).

I've held on to this pull request a bit since we were waiting for a SCO
related fix to get sorted out first. However, since the merge window is
getting closer I decided not to wait for it. If we do get the fix sorted
out there'll probably be a second small pull request later this week.
'"

And,

"Unless 3.17 gets delayed this will probably be our last -next pull request for
3.18. We've got:

  - New Marvell hardware supportr
  - Multicast support for 6lowpan
  - Several of 6lowpan fixes & cleanups
  - Fix for a (false-positive) lockdep warning in L2CAP
  - Minor btusb cleanup"

On top of all that comes the usual sort of updates to ath5k, ath9k,
ath10k, brcmfmac, mwifiex, and wil6210.  This time around there are
also a number of rtlwifi updates to enable some new hardware and
to reconcile the in-kernel drivers with some newer releases of the
Realtek vendor drivers.  Also of note is some device tree work for
the bcma bus.

Please let me know if there are problems!
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-05 21:34:39 -04:00
David S. Miller
61b37d2f54 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
Pablo Neira Ayuso says:

====================
Netfilter/IPVS updates for net-next

The following patchset contains another batch with Netfilter/IPVS updates
for net-next, they are:

1) Add abstracted ICMP codes to the nf_tables reject expression. We
   introduce four reasons to reject using ICMP that overlap in IPv4
   and IPv6 from the semantic point of view. This should simplify the
   maintainance of dual stack rule-sets through the inet table.

2) Move nf_send_reset() functions from header files to per-family
   nf_reject modules, suggested by Patrick McHardy.

3) We have to use IS_ENABLED(CONFIG_BRIDGE_NETFILTER) everywhere in the
   code now that br_netfilter can be modularized. Convert remaining spots
   in the network stack code.

4) Use rcu_barrier() in the nf_tables module removal path to ensure that
   we don't leave object that are still pending to be released via
   call_rcu (that may likely result in a crash).

5) Remove incomplete arch 32/64 compat from nft_compat. The original (bad)
   idea was to probe the word size based on the xtables match/target info
   size, but this assumption is wrong when you have to dump the information
   back to userspace.

6) Allow to filter from prerouting and postrouting in the nf_tables bridge.
   In order to emulate the ebtables NAT chains (which are actually simple
   filter chains with no special semantics), we have support filtering from
   this hooks too.

7) Add explicit module dependency between xt_physdev and br_netfilter.
   This provides a way to detect if the user needs br_netfilter from
   the configuration path. This should reduce the breakage of the
   br_netfilter modularization.

8) Cleanup coding style in ip_vs.h, from Simon Horman.

9) Fix crash in the recently added nf_tables masq expression. We have
   to register/unregister the notifiers to clean up the conntrack table
   entries from the module init/exit path, not from the rule addition /
   deletion path. From Arturo Borrero.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-05 21:32:37 -04:00
David S. Miller
ad9eef5208 Merge branch 'bridge_default_pvid'
Vladislav Yasevich says:

====================
bridge: Add vlan filtering support for default pvid

This series adds default pvid support to vlan filtering in the bridge.
VLAN 1 (as recommended by 802.1q spec) is used as default pvid on ports.
Then the user can over-ride this configuration by configuring their
own vlan information.
The user can additionally change the default value through the
sysfs interface (netlink coming shortly).
The user can turn off default pvid functionality by setting default
pvid to 0.
This series changes the default behavior of the bridge when
vlan filtering is turned on.  Currently, ports without any vlan
filtering configured will not recevie any traffic at all.  This patch
changes the behavior of the above ports to receive only untagged traffic.

Since v3:
- allocated 'changed' bitmap on the heap and re-arrange code to clean it up.
- remove extra blank lines.
- Fix patch1 to build by itself.
- Fix error recover to not add vlan 0.
- Restructure nbp_vlan_init to remove uneeded variable.

Since v2:
- Fix handling of invalid values in sysfs interface.
- Add some additional log messages.
- Fix default_pvid handling when vlan filtering is compiled out.
- Fix sparse issues with new code.
- Fix how we located the old default pvid (added a helper function).

Since v1:
- Add ability to turn off default_pvid settings.
- Drop the automiatic filtering support based on configured vlan devices (will
  be its own series)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-05 21:21:44 -04:00
Vlad Yasevich
5be5a2df40 bridge: Add filtering support for default_pvid
Currently when vlan filtering is turned on on the bridge, the bridge
will drop all traffic untill the user configures the filter.  This
isn't very nice for ports that don't care about vlans and just
want untagged traffic.

A concept of a default_pvid was recently introduced.  This patch
adds filtering support for default_pvid.   Now, ports that don't
care about vlans and don't define there own filter will belong
to the VLAN of the default_pvid and continue to receive untagged
traffic.

This filtering can be disabled by setting default_pvid to 0.

Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-05 21:21:37 -04:00
Vlad Yasevich
3df6bf45ec bridge: Simplify pvid checks.
Currently, if the pvid is not set, we return an illegal vlan value
even though the pvid value is set to 0.  Since pvid of 0 is currently
invalid, just return 0 instead.  This makes the current and future
checks simpler.

Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-05 21:21:36 -04:00
Vlad Yasevich
96a20d9d7f bridge: Add a default_pvid sysfs attribute
This patch allows the user to set and retrieve default_pvid
value.  A new value can only be stored when vlan filtering
is disabled.

Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-05 21:21:36 -04:00
Antoine Ténart
e885439f37 net: pxa168_eth: avoid using signed char for bitops
Signedness bugs may occur when using signed char for bitops,
depending on if the highest bit is ever used.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-05 21:18:56 -04:00
David S. Miller
5555dfdc0f Merge branch 'isdn-next'
Tilman Schmidt says:

====================
ISDN patches for net-next

Here's a series of patches for the ISDN CAPI subsystem and the
Gigaset ISDN driver.  Please merge via net-next.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-05 21:17:56 -04:00
Tilman Schmidt
7b0c67e495 isdn/gigaset: use USB API function usb_endpoint_num()
Use function usb_endpoint_num() for the bulk endpoint and store
the endpoint number in the cardstate structure instead of the raw
endpoint address value.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-05 21:17:52 -04:00
Tilman Schmidt
434d13ba39 isdn/gigaset: drop unused cardstate structure member
Field int_in_endpointAddr was set but never used. Drop it.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-05 21:17:52 -04:00
Tilman Schmidt
5dcd7d8439 isdn/gigaset: improve error handling when leaving DLE mode
Avoid cascading warnings when leaving DLE mode fails by clearing
the DLE flag before entering recovery.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-05 21:17:52 -04:00
Tilman Schmidt
51db998fb6 isdn/capi: drop two dead if branches
The last branch in command_2_index() cannot be reached since
c==0xff is already caught by the first "if".
The empty second branch makes no difference since no other branch
will be taken for c<0x0f.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-05 21:17:51 -04:00
David S. Miller
f408c3d956 Merge branch 'spider_net'
Antoine Tenart says:

====================
net: spider_net: fix possible bitops errors

Dan reported a possible signedness issue on the pxa168_eth driver. While
having a look at it, I came across a similar problem in the spider_net
driver.

Here is one proposal to fix it. The first patch rework the
spider_net_set_mac() function by removing the spider_net_get_mac_address()
call and using memcpy() to set netdev->dev_addr (which is what's done in
lots of Ethernet drivers) and the second one fix the actual signedness
issue.

If for any reason you really want to keep a call to
spider_net_get_mac_address() because the memcpy() is somehow not good
enough here, we can also come up with a solution involving a temporary
unsigned char variable.

I couldn't test these changes, so please do.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-05 21:15:23 -04:00
Antoine Ténart
96aacededc net: spider_net: avoid using signed char for bitops
Signedness bugs may occur when using signed char for bitops,
depending on if the highest bit is ever used.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-05 21:15:16 -04:00
Antoine Ténart
0f6a670116 net: spider_net: do not read mac address again after setting it
This patch removes the spider_net_get_mac_address() call at the end of
the spider_net_set_mac() function. The dev->dev_addr is instead updated
with a memcpy() from sa->sa_data.

Since spider_net_get_mac_address() is not used anywhere else, this patch
also removes the function.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-05 21:15:16 -04:00
KY Srinivasan
3a67c9ccad hyperv: Fix a bug in netvsc_send()
After the packet is successfully sent, we should not touch the packet
as it may have been freed. This patch is based on the work done by
Long Li <longli@microsoft.com>.

David, please queue this up for stable.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reported-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-05 21:10:48 -04:00
Rafael J. Wysocki
dbcbe68bb7 Merge branches 'acpi-pnp' and 'acpi-blacklist'
* acpi-pnp:
  ACPI / PNP: remove Fujitsu device IDs from ACPI PNP ID list

* acpi-blacklist:
  ACPI / blacklist: add Win8 OSI quirks for some Dell laptop models
2014-10-05 22:25:20 +02:00
Rafael J. Wysocki
a13f453140 Merge branch 'acpi-lpss'
* acpi-lpss:
  ACPI / LPSS: not using UART RTS override with Auto Flow Control
  ACPI / LPSS: remove struct lpss_shared_clock
  ACPI / LPSS: support for 133MHz I2C source clock on Baytrail
  ACPI / LPSS: drop clkdev_name member from lpss_device_desc
  ACPI / LPSS: introduce flags
2014-10-05 22:24:43 +02:00
Rafael J. Wysocki
354f1dbe19 Merge branch 'acpi-video'
* acpi-video:
  ACPI / video: check _DOD list when creating backlight devices
  ACPI / video: force vendor backlight on Lenovo Ideapad Z570
  ACPI / video: Remove video_set_use_native_backlight quirk
2014-10-05 22:24:31 +02:00
Rafael J. Wysocki
939558f2a4 Merge branch 'acpi-apple'
* acpi-apple:
  ACPI / SBS: Fix check in acpi_ac_get_present()
  ACPI: Support _OSI("Darwin") correctly
  ACPI / SBS: Disable smart battery manager on Apple
  ACPI / SBS: Don't assume the existence of an SBS charger
2014-10-05 22:24:19 +02:00
Rafael J. Wysocki
65e8627aad Merge branch 'acpica'
* acpica:
  ACPICA: Introduce acpi_enable_all_wakeup_gpes()
  ACPICA: Clear all non-wakeup GPEs in acpi_hw_enable_wakeup_gpe_block()
  ACPICA: Update version to 20140828.
  ACPICA: Disassembler: Fix for gpio_int interrupt polarity flags.
  ACPICA: Headers: Add GTDT flag definitions for the timer subtable.
  ACPICA: ACPI 5.1/Disassembler: Add GICC affinity subtable to SRAT table.
  ACPICA: Add _PSx names to the METHOD_NAME list.
2014-10-05 22:23:55 +02:00
Linus Torvalds
bfe01a5ba2 Linux 3.17 2014-10-05 12:23:04 -07:00
Linus Torvalds
ef0a59924a SCSI fixes on 20141004
This is a set of two small fixes, both to code which went in during the merge
 window: cxgb4i has a scheduling in atomic bug in its new ipv6 code and uas
 fails to work properly with the new scsi-mq code.
 
 Signed-off-by: James Bottomley <JBottomley@Parallels.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQEcBAABAgAGBQJUMMu/AAoJEDeqqVYsXL0MRlQH/1qE/e5xRfpftgTtjpqC0BFa
 7M4X48YRCxuKi/QJ3oOMpdj30ExXZ8sKfHsQiXBDlgyJzjE2sfsz70Z/mnm7kfxv
 y0c9+C4y4AJ9b3Qn67Zk7l/elpZdzYfk2WFZsJ+AvC/bBXUTff7G1I2wnC36gdS4
 S3+ZlCmbNlR1CNNm6xrqEKgGRIuQxonI5foJj6ovz/OvHiFQfpYTm0IvZNNCXYD3
 rLg1661WA9BJP/r+B5uTwCmlNxJereiLJJwPR39OxWYXwgsvHVNYP/ae7NNFPl3R
 zT1oeoaLoZn0r6lZKFmH3W4Sa2C7tZ0aWROCtU6O/EhUUQCXJPJfOYgwNPGVUaE=
 =RzIY
 -----END PGP SIGNATURE-----

Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is a set of two small fixes, both to code which went in during
  the merge window: cxgb4i has a scheduling in atomic bug in its new
  ipv6 code and uas fails to work properly with the new scsi-mq code"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  [SCSI] uas: disable use of blk-mq I/O path
  [SCSI] cxgb4i: avoid holding mutex in interrupt context
2014-10-05 10:16:11 -07:00
Joe Lawrence
47549650ab team: avoid race condition in scheduling delayed work
When team_notify_peers and team_mcast_rejoin are called, they both reset
their respective .count_pending atomic variable. Then when the actual
worker function is executed, the variable is atomically decremented.
This pattern introduces a potential race condition where the
.count_pending rolls over and the worker function keeps rescheduling
until .count_pending decrements to zero again:

THREAD 1                           THREAD 2

========                           ========
team_notify_peers(teamX)
  atomic_set count_pending = 1
  schedule_delayed_work
                                   team_notify_peers(teamX)
                                   atomic_set count_pending = 1
team_notify_peers_work
  atomic_dec_and_test
    count_pending = 0
  (return)
                                   schedule_delayed_work
                                   team_notify_peers_work
                                   atomic_dec_and_test
                                     count_pending = -1
                                   schedule_delayed_work
                                   (repeat until count_pending = 0)

Instead of assigning a new value to .count_pending, use atomic_add to
tack-on the additional desired worker function invocations.

Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Fixes: fc423ff00d ("team: add peer notification")
Fixes: 492b200efd ("team: add support for sending multicast rejoins")
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-04 20:50:50 -04:00
Ignacy Gawędzki
34a419d4e2 ematch: Fix early ending of inverted containers.
The result of a negated container has to be inverted before checking for
early ending.

This fixes my previous attempt (17c9c82326) to
make inverted containers work correctly.

Signed-off-by: Ignacy Gawędzki <ignacy.gawedzki@green-communications.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-04 20:49:46 -04:00
John Fastabend
1e203c1a2c net: sched: suspicious RCU usage in qdisc_watchdog
Suspicious RCU usage in qdisc_watchdog call needs to be done inside
rcu_read_lock/rcu_read_unlock. And then Qdisc destroy operations
need to ensure timer is cancelled before removing qdisc structure.

[ 3992.191339] ===============================
[ 3992.191340] [ INFO: suspicious RCU usage. ]
[ 3992.191343] 3.17.0-rc6net-next+ #72 Not tainted
[ 3992.191345] -------------------------------
[ 3992.191347] include/net/sch_generic.h:272 suspicious rcu_dereference_check() usage!
[ 3992.191348]
[ 3992.191348] other info that might help us debug this:
[ 3992.191348]
[ 3992.191351]
[ 3992.191351] rcu_scheduler_active = 1, debug_locks = 1
[ 3992.191353] no locks held by swapper/1/0.
[ 3992.191355]
[ 3992.191355] stack backtrace:
[ 3992.191358] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.17.0-rc6net-next+ #72
[ 3992.191360] Hardware name:                  /DZ77RE-75K, BIOS GAZ7711H.86A.0060.2012.1115.1750 11/15/2012
[ 3992.191362]  0000000000000001 ffff880235803e48 ffffffff8178f92c 0000000000000000
[ 3992.191366]  ffff8802322224a0 ffff880235803e78 ffffffff810c9966 ffff8800a5fe3000
[ 3992.191370]  ffff880235803f30 ffff8802359cd768 ffff8802359cd6e0 ffff880235803e98
[ 3992.191374] Call Trace:
[ 3992.191376]  <IRQ>  [<ffffffff8178f92c>] dump_stack+0x4e/0x68
[ 3992.191387]  [<ffffffff810c9966>] lockdep_rcu_suspicious+0xe6/0x130
[ 3992.191392]  [<ffffffff8167213a>] qdisc_watchdog+0x8a/0xb0
[ 3992.191396]  [<ffffffff810f93f2>] __run_hrtimer+0x72/0x420
[ 3992.191399]  [<ffffffff810f9bcd>] ? hrtimer_interrupt+0x7d/0x240
[ 3992.191403]  [<ffffffff816720b0>] ? tc_classify+0xc0/0xc0
[ 3992.191406]  [<ffffffff810f9c4f>] hrtimer_interrupt+0xff/0x240
[ 3992.191410]  [<ffffffff8109e4a5>] ? __atomic_notifier_call_chain+0x5/0x140
[ 3992.191415]  [<ffffffff8103577b>] local_apic_timer_interrupt+0x3b/0x60
[ 3992.191419]  [<ffffffff8179c2b5>] smp_apic_timer_interrupt+0x45/0x60
[ 3992.191422]  [<ffffffff8179a6bf>] apic_timer_interrupt+0x6f/0x80
[ 3992.191424]  <EOI>  [<ffffffff815ed233>] ? cpuidle_enter_state+0x73/0x2e0
[ 3992.191432]  [<ffffffff815ed22e>] ? cpuidle_enter_state+0x6e/0x2e0
[ 3992.191437]  [<ffffffff815ed567>] cpuidle_enter+0x17/0x20
[ 3992.191441]  [<ffffffff810c0741>] cpu_startup_entry+0x3d1/0x4a0
[ 3992.191445]  [<ffffffff81106fc6>] ? clockevents_config_and_register+0x26/0x30
[ 3992.191448]  [<ffffffff81033c16>] start_secondary+0x1b6/0x260

Fixes: b26b0d1e8b ("net: qdisc: use rcu prefix and silence sparse warnings")
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-04 20:45:54 -04:00
Florian Fainelli
f7d6b96f34 net: dsa: do not call phy_start_aneg
Commit f7f1de51ed ("net: dsa: start and stop the PHY state machine")
add calls to phy_start() in dsa_slave_open() respectively phy_stop() in
dsa_slave_close().

We also call phy_start_aneg() in dsa_slave_create(), and this call is
messing up with the PHY state machine, since we basically start the
auto-negotiation, and later on restart it when calling phy_start().
phy_start() does not currently handle the PHY_FORCING or PHY_AN states
properly, but such a fix would be too invasive for this window.

Fixes: f7f1de51ed ("net: dsa: start and stop the PHY state machine")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-04 20:44:44 -04:00
Sébastien Barré
dd3619f2ed Removed unused inet6 address state
the inet6 state INET6_IFADDR_STATE_UP only appeared in its definition.

Cc: Christoph Paasch <christoph.paasch@uclouvain.be>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sébastien Barré <sebastien.barre@uclouvain.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-04 20:37:17 -04:00
Vijay Subramanian
c8753d55af net: Cleanup skb cloning by adding SKB_FCLONE_FREE
SKB_FCLONE_UNAVAILABLE has overloaded meaning depending on type of skb.
1: If skb is allocated from head_cache, it indicates fclone is not available.
2: If skb is a companion fclone skb (allocated from fclone_cache), it indicates
it is available to be used.

To avoid confusion for case 2 above, this patch  replaces
SKB_FCLONE_UNAVAILABLE with SKB_FCLONE_FREE where appropriate. For fclone
companion skbs, this indicates it is free for use.

SKB_FCLONE_UNAVAILABLE will now simply indicate skb is from head_cache and
cannot / will not have a companion fclone.

Signed-off-by: Vijay Subramanian <subramanian.vijay@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-04 20:34:25 -04:00
Florian Fainelli
e87474a6e6 net: systemport: fix bcm_sysport_insert_tsb()
Similar to commit bc23333ba1 ("net:
bcmgenet: fix bcmgenet_put_tx_csum()"), we need to return the skb
pointer in case we had to reallocate the SKB headroom.

Fixes: 80105befdb ("net: systemport: add Broadcom SYSTEMPORT Ethernet MAC driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-04 20:30:04 -04:00
Nicolas Dichtel
3be07244b7 ip6_gre: fix flowi6_proto value in xmit path
In xmit path, we build a flowi6 which will be used for the output route lookup.
We are sending a GRE packet, neither IPv4 nor IPv6 encapsulated packet, thus the
protocol should be IPPROTO_GRE.

Fixes: c12b395a46 ("gre: Support GRE over IPv6")
Reported-by: Matthieu Ternisien d'Ouville <matthieu.tdo@6wind.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-04 20:08:24 -04:00
Eric Dumazet
9fab426de7 mlx4: add a new xmit_more counter
ethtool -S reports a new counter, tracking number of time doorbell
was not triggered, because skb->xmit_more was set.

$ ethtool -S eth0 | egrep "tx_packet|xmit_more"
     tx_packets: 2413288400
     xmit_more: 666121277

I merged the tso_packet false sharing avoidance in this patch as well.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-04 20:04:14 -04:00
Richard Weinberger
1742b630e4 score: Remove GENERIC_HAS_IOMAP
The symbol is an orphan, get rid of it.

Signed-off-by: Richard Weinberger <richard@nod.at>
Acked-by: Lennox Wu <lennox.wu@gmail.com>
Cc: Paul Bolle <pebolle@tiscali.nl>
[Guenter Roeck: Merge with 3.17-rc3; update headline]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-10-05 04:38:08 +08:00
Chen Gang
d32c98e985 arch/score/include/asm/Kbuild: Add generic "serial.h"
The related error (with allmodconfig under score):

    CC [M]  drivers/staging/speakup/speakup_acntpc.o
  In file included from drivers/staging/speakup/speakup_acntpc.c:33:0:
  drivers/staging/speakup/serialio.h:7:24: fatal error: asm/serial.h: No such file or directory
   #include <asm/serial.h>
                          ^
  compilation terminated.
  make[3]: *** [drivers/staging/speakup/speakup_acntpc.o] Error 1
  make[2]: *** [drivers/staging/speakup] Error 2
  make[1]: *** [drivers/staging] Error 2
  make: *** [drivers] Error 2

Acked-by: Lennox Wu <lennox.wu@gmail.com>
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
2014-10-05 01:18:17 +08:00
Michael Opdenacker
203d2fbbec score: remove deprecated IRQF_DISABLED
This patch removes the use of the IRQF_DISABLED flag
from arch/score/kernel/time.c

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Acked-by: Lennox Wu <lennox.wu@gmail.com>
2014-10-05 01:18:17 +08:00
Chen Gang
000ab4b0a7 arch/score/mm/cache.c: Export 'flush_icache_range'
The related error (with allmodconfig under score):

    MODPOST 1365 modules
  ERROR: "flush_icache_range" [drivers/misc/lkdtm.ko] undefined!

Acked-by: Lennox Wu <lennox.wu@gmail.com>
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
2014-10-05 01:18:17 +08:00
Chen Gang
51de2f11f5 arch: score: Export necessary symbols in related files
'csum_partial_copy_from_user' and 'flush_dcache_page' are also needed by
outside modules, so need export them in the related files.

The related error (with allmodconfig under score):

    MODPOST 1365 modules
  ERROR: "csum_partial_copy_from_user" [net/rxrpc/af-rxrpc.ko] undefined!
  ERROR: "flush_dcache_page" [net/sunrpc/sunrpc.ko] undefined!

Acked-by: Lennox Wu <lennox.wu@gmail.com>
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
2014-10-05 01:18:16 +08:00
Linus Torvalds
7b6ea43d3f Two Kconfig bugfixes for 3.17 related to tinification. These fixes make the
Kconfig "General Setup" menu much more usable.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABCAAGBQJULz3dAAoJEA7Zo9+K/4c92K0P/24ZfmolNf9HQBRjKRLKwRKK
 uZEBtGyUUzttFD/sQ87Bi3sdnOODPcgDadzDp5QGRdbNH/4GDlaB5878J1ubuPfE
 +nWZEiPw5I+v5aGVAPa3L9qS5Z1myvymlL86DAIx1mzZ7fdtdZGkXc9snz/MzZwR
 X9beqY8wIyx9SxmbqKKpGoXg4m09RlYJ+CwjRkFpa/ptQJzqknXdAHcUlzb7+NIs
 ZmF1ip9Y2sZOhggip8M0YV0XrAZk7EKe3Xq6pzx8UuWnSu82hjrhC+5OZu0VKyRZ
 ldWIXjM0MKcPaNLXmVpABuKjLnX6kNSvFz6qHT2vm4pG/6IUjT+bgTgRNa7LlxeD
 mPggkQmrZHG1ZYipBn6T9ZZu00v4h7cu0UEJdBzqsdSjByx0zK8vY3HpqJxjrSLe
 M9ztT33S8bW4N5lfHYO6RNfSdKOLv4NbdzO4gHiewlHN6htEctxKIyjr8BeHc0qX
 ihmiYCrsKGqipXmjOrfICA8/v5nR/+/sqjx5mlOhIGf51wGPMTX74BjVfQ75BCr+
 bf5lGf9+9qIoxZg1zjLnAyP3Wj4+h109Wx3u1zft25m2dEtKLggwDKySHORH9z4U
 PhXcnhECAJ1yy+w1vB/1NyCsHv7r3IntGpWvpETgvYc8AAjeGuNQ1yf9JAAcDOQ6
 hPlZByacHse09f6nGeU4
 =0Wp2
 -----END PGP SIGNATURE-----

Merge tag 'tiny/kconfig-for-3.17' of https://git.kernel.org/pub/scm/linux/kernel/git/josh/linux

Pull kconfig fixes for tiny setups from Josh Triplett:
 "Two Kconfig bugfixes for 3.17 related to tinification.  These fixes
  make the Kconfig "General Setup" menu much more usable"

* tag 'tiny/kconfig-for-3.17' of https://git.kernel.org/pub/scm/linux/kernel/git/josh/linux:
  init/Kconfig: Fix HAVE_FUTEX_CMPXCHG to not break up the EXPERT menu
  init/Kconfig: Hide printk log config if CONFIG_PRINTK=n
2014-10-04 09:32:47 -07:00
David S. Miller
6106253e69 Merge branch 'gudp'
Tom Herbert says:

====================
net: Generic UDP Encapsulation

Generic UDP Encapsulation (GUE) is UDP encapsulation protocol which
encapsulates packets of various IP protocols. The GUE protocol is
described in http://tools.ietf.org/html/draft-herbert-gue-01.

The receive path of GUE is implemented in the FOU over UDP module (FOU).
This includes a UDP encap receive function for GUE as well as GUE
specific GRO functions. Management and configuration of GUE ports shares
most of the same code with FOU.

For the transmit path, the previous FOU support for IPIP, sit, and GRE
was simply extended for GUE (when GUE is enabled insert the GUE
header on transmit in addition to UDP header inserted for FOU).

Semantically GUE is the same as FOU in that the encapsulation (UDP
and GUE headers) that are inserted on transmission and removed on
reception so that IP packet is processed with the inner header.

This patch set includes:
 - Some fixes to FOU, removal of IPv4,v6 specific GRO functions
 - Support to configure a GUE receive port
 - Implementation of GUE receive path (normal and GRO)
 - Additions to ip_tunnel netlink to configure GUE
 - GUE header inserion in ip_tunnel transmit path

v2:
 - Include net/gue.h in patch set

Testing:

I ran performance numbers using netperf TCP_RR with 200 streams,
comparing encapsulation without GUE, encapsulation with GUE, and
encapsulation with FOU.

 GRE
    TCP_STREAM
      IPv4, FOU, UDP checksum enabled
        14.04% TX CPU utilization
        13.17% RX CPU utilization
        9211 Mbps
      IPv4, GUE, UDP checksum enabled
        14.99% TX CPU utilization
        13.79% RX CPU utilization
        9185 Mbps
      IPv4, FOU, UDP checksum disabled
        13.14% TX CPU utilization
        23.18% RX CPU utilization
        9277 Mbps
      IPv4, GUE, UDP checksum disabled
        13.66% TX CPU utilization
        23.57% RX CPU utilization
        9184 Mbps
    TCP_RR
      IPv4, FOU, UDP checksum enabled
        94.2% CPU utilization
        155/249/460 90/95/99% latencies
        1.17018e+06 tps
      IPv4, GUE, UDP checksum enabled
        93.9% CPU utilization
        158/253/472 90/95/99% latencies
        1.15045e+06 tps

  IPIP
    TCP_STREAM
      FOU, UDP checksum enabled
        15.28% TX CPU utilization
        13.92% RX CPU utilization
        9342 Mbps
      GUE, UDP checksum enabled
        13.99% TX CPU utilization
        13.34% RX CPU utilization
        9210 Mbps
      FOU, UDP checksum disabled
        15.08% TX CPU utilization
        24.64% RX CPU utilization
        9226 Mbps
      GUE, UDP checksum disabled
        15.90% TX CPU utilization
        24.77% RX CPU utilization
        9197 Mbps
    TCP_RR
      FOU, UDP checksum enabled
        94.23% CPU utilization
        149/237/429 90/95/99% latencies
        1.19553e+06 tps
      GUE, UDP checksum enabled
        93.75% CPU utilization
        152/243/442 90/95/99% latencies
        1.17027e+06 tps

  SIT
    TCP_STREAM
      FOU, UDP checksum enabled
        14.47% TX CPU utilization
        14.58% RX CPU utilization
        9106 Mbps
      GUE, UDP checksum enabled
        15.09% TX CPU utilization
        14.84% RX CPU utilization
        9080 Mbps
      FOU, UDP checksum disabled
        15.70% TX CPU utilization
        27.93% RX CPU utilization
        9097 Mbps
      GUE, UDP checksum disabled
        15.04% TX CPU utilization
        27.54% RX CPU utilization
        9073 Mbps
    TCP_RR
      FOU, UDP checksum enabled
        96.9% CPU utilization
        170/281/581 90/95/99% latencies
        1.03372e+06 tps
      GUE, UDP checksum enabled
        97.16% CPU utilization
        172/286/576 90/95/99% latencies
        1.00469e+06 tps
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-03 16:53:36 -07:00
Tom Herbert
bc1fc390e1 ip_tunnel: Add GUE support
This patch allows configuring IPIP, sit, and GRE tunnels to use GUE.
This is very similar to fou excpet that we need to insert the GUE header
in addition to the UDP header on transmit.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-03 16:53:33 -07:00
Tom Herbert
37dd024779 gue: Receive side for Generic UDP Encapsulation
This patch adds support receiving for GUE packets in the fou module. The
fou module now supports direct foo-over-udp (no encapsulation header)
and GUE. To support this a type parameter is added to the fou netlink
parameters.

For a GUE socket we define gue_udp_recv, gue_gro_receive, and
gue_gro_complete to handle the specifics of the GUE protocol. Most
of the code to manage and configure sockets is common with the fou.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-03 16:53:33 -07:00
Tom Herbert
efc98d08e1 fou: eliminate IPv4,v6 specific GRO functions
This patch removes fou[46]_gro_receive and fou[46]_gro_complete
functions. The v4 or v6 variants were chosen for the UDP offloads
based on the address family of the socket this is not necessary
or correct. Alternatively, this patch adds is_ipv6 to napi_gro_skb.
This is set in udp6_gro_receive and unset in udp4_gro_receive. In
fou_gro_receive the value is used to select the correct inet_offloads
for the protocol of the outer IP header.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-03 16:53:32 -07:00
Tom Herbert
7371e0221c ip_tunnel: Account for secondary encapsulation header in max_headroom
When adjusting max_header for the tunnel interface based on egress
device we need to account for any extra bytes in secondary encapsulation
(e.g. FOU).

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-03 16:53:32 -07:00
Josh Triplett
62b4d20411 init/Kconfig: Fix HAVE_FUTEX_CMPXCHG to not break up the EXPERT menu
commit 03b8c7b623 ("futex: Allow
architectures to skip futex_atomic_cmpxchg_inatomic() test") added the
HAVE_FUTEX_CMPXCHG symbol right below FUTEX.  This placed it right in
the middle of the options for the EXPERT menu.  However,
HAVE_FUTEX_CMPXCHG does not depend on EXPERT or FUTEX, so Kconfig stops
placing items in the EXPERT menu, and displays the remaining several
EXPERT items (starting with EPOLL) directly in the General Setup menu.

Since both users of HAVE_FUTEX_CMPXCHG only select it "if FUTEX", make
HAVE_FUTEX_CMPXCHG itself depend on FUTEX.  With this change, the
subsequent items display as part of the EXPERT menu again; the EMBEDDED
menu now appears as the next top-level item in the General Setup menu,
which makes General Setup much shorter and more usable.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Cc: stable <stable@vger.kernel.org>
2014-10-03 16:49:43 -07:00
Josh Triplett
361e9dfbaa init/Kconfig: Hide printk log config if CONFIG_PRINTK=n
The buffers sized by CONFIG_LOG_BUF_SHIFT and
CONFIG_LOG_CPU_MAX_BUF_SHIFT do not exist if CONFIG_PRINTK=n, so don't
ask about their size at all.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Cc: stable <stable@vger.kernel.org>
2014-10-03 16:49:38 -07:00
Eric Dumazet
01291202ed net: do not export skb_gro_receive()
skb_gro_receive() is only called from tcp_gro_receive() which is
not in a module.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-03 15:54:30 -07:00
Chen Gang
ad2a2a6d7c drivers/net/irda/Kconfig: Let SH_IRDA depend on HAS_IOMEM
SH_IRDA needs HAS_IOMEM, so depend on it. The related error(with
allmodconfig under um):

    CC [M]  drivers/net/irda/sh_irda.o
  drivers/net/irda/sh_irda.c: In function ‘sh_irda_probe’:
  drivers/net/irda/sh_irda.c:776:2: error: implicit declaration of function ‘ioremap_nocache’ [-Werror=implicit-function-declaration]
    self->membase = ioremap_nocache(res->start, resource_size(res));
    ^
  drivers/net/irda/sh_irda.c:776:16: warning: assignment makes pointer from integer without a cast [enabled by default]
    self->membase = ioremap_nocache(res->start, resource_size(res));
                  ^
  drivers/net/irda/sh_irda.c:821:2: error: implicit declaration of function ‘iounmap’ [-Werror=implicit-function-declaration]
    iounmap(self->membase);
    ^

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-03 15:52:04 -07:00
Chen Gang
65cb29a4f3 drivers/net/ethernet/marvell/Kconfig: Let PXA168_ETH depend on HAS_IOMEM
PXA168_ETH need HAS_IOMEM, so depend on it, the related error (with
allmodconfig under um):

    CC [M]  drivers/net/ethernet/marvell/pxa168_eth.o
  drivers/net/ethernet/marvell/pxa168_eth.c: In function ‘pxa168_eth_probe’:
  drivers/net/ethernet/marvell/pxa168_eth.c:1605:2: error: implicit declaration of function ‘iounmap’ [-Werror=implicit-function-declaration]
    iounmap(pep->base);
    ^

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-03 15:52:04 -07:00
Chen Gang
28b5533a6f drivers/net/dsa/Kconfig: Let NET_DSA_BCM_SF2 depend on HAS_IOMEM
NET_DSA_BCM_SF2 need HAS_IOMEM, so depend on it, the related error (with
allmodconfig under um):

    CC [M]  drivers/net/dsa/bcm_sf2.o
  drivers/net/dsa/bcm_sf2.c: In function ‘bcm_sf2_sw_setup’:
  drivers/net/dsa/bcm_sf2.c:487:3: error: implicit declaration of function ‘iounmap’ [-Werror=implicit-function-declaration]
     iounmap(*base);
     ^

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-03 15:52:04 -07:00
Chen Gang
9dc8be2816 drivers/net/can/Kconfig: Let CAN_AT91 depend on HAS_IOMEM
CAN_AT91 needs HAS_IOMEM, so depends on it. The related error (with
allmodconfig under um):

    CC [M]  drivers/net/can/at91_can.o
  drivers/net/can/at91_can.c: In function ‘at91_can_probe’:
  drivers/net/can/at91_can.c:1329:2: error: implicit declaration of function ‘ioremap_nocache’ [-Werror=implicit-function-declaration]
  addr = ioremap_nocache(res->start, resource_size(res));
    ^
  drivers/net/can/at91_can.c:1329:7: warning: assignment makes pointer from integer without a cast [enabled by default]
    addr = ioremap_nocache(res->start, resource_size(res));
         ^
  drivers/net/can/at91_can.c:1384:2: error: implicit declaration of function ‘iounmap’ [-Werror=implicit-function-declaration]
    iounmap(addr);
    ^

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-03 15:52:03 -07:00