Commit Graph

442570 Commits

Author SHA1 Message Date
WANG Cong
07c8e35a38 ipv6: remove unused function ipv6_inherit_linklocal()
It is no longer used after commit e837735ec4
(ip6_tunnel: ensure to always have a link local address).

Cc: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 15:30:20 -04:00
David S. Miller
c020b9d420 Merge branch 'inet_csums'
Tom Herbert says:

====================
net: Checksum offload changes

I am working on overhauling RX checksum offload. Goals of this effort
are:

- Specify what exactly it means when driver returns CHECKSUM_UNNECESSARY
- Preserve CHECKSUM_COMPLETE through encapsulation layers
- Don't do skb_checksum more than once per packet
- Unify GRO and non-GRO csum verification as much as possible
- Unify the checksum functions (checksum_init)
- Simply code

What is in this first patch set:

- Create a common "checksum_init" function which is called from
  TCPv{4,6} and UDPv{4,6}
- Add some for RFC6936, UDP/IPv6 zero checksums
- Add architecture support for csum_add and provide implementations
  for x86_64 and Sparc 32 and 64 bit (please test the latter)

Please review carefully and test if possible, mucking with basic
checksum functions is always a little precarious :-)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 15:28:52 -04:00
Tom Herbert
4068579e1e net: Implmement RFC 6936 (zero RX csums for UDP/IPv6)
RFC 6936 relaxes the requirement of RFC 2460 that UDP/IPv6 packets which
are received with a zero UDP checksum value must be dropped. RFC 6936
allows zero checksums to support tunnels over UDP.

When sk_no_check is set we allow on a socket we allow a zero IPv6
UDP checksum. This is for both sending zero checksum and accepting
a zero checksum on receive.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 15:26:30 -04:00
Tom Herbert
e4f45b7f40 net: Call skb_checksum_init in IPv6
Call skb_checksum_init instead of private functions.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 15:26:30 -04:00
Tom Herbert
ed70fcfcee net: Call skb_checksum_init in IPv4
Call skb_checksum_init instead of private functions.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 15:26:30 -04:00
Tom Herbert
76ba0aae67 net: Generalize checksum_init functions
Create a general __skb_checksum_validate function (actually a
macro) to subsume the various checksum_init functions. This
function can either init the checksum, or do the full validation
(logically checksum_init+skb_check_complete)-- a flag specifies
if full vaidation is performed. Also, there is a flag to the function
to indicate that zero checksums are allowed (to support optional
UDP checksums).

Added several stub functions for calling __skb_checksum_validate.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 15:26:29 -04:00
Tom Herbert
20fce54fa7 sparc: csum_add for Sparc
versions.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 15:26:29 -04:00
Tom Herbert
4405b4d635 net: Change x86_64 add32_with_carry to allow memory operand
Note add32_with_carry(a, b) is suboptimal, as it forces
a and b in registers.

b could be a memory or a register operand.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 15:26:29 -04:00
Tom Herbert
a278534406 x86_64: csum_add for x86_64
Add csum_add function for x86_64.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 15:26:29 -04:00
Tom Herbert
07064c6e02 net: Allow csum_add to be provided in arch
csum_add is really nothing more then add-with-carry which
can be implemented efficiently in some architectures.
Allow architecture to define this protected by HAVE_ARCH_CSUM_ADD.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 15:26:29 -04:00
Bjørn Mork
9becd70784 net: cdc_ncm: fix buffer overflow
Commit 4d619f625a ("net: cdc_ncm: no point in filling up the NTBs
if we send ZLPs") changed the padding logic for devices with the ZLP
flag set.  This meant that frames of any size will be sent without
additional padding, except for the single byte added if the size is
a multiple of the USB packet size. But if the unpadded size is
identical to the maximum frame size, and the maximum size is a
multiplum of the USB packet size, then this one-byte padding will
overflow the buffer.

Prevent padding if already at maximum frame size, letting usbnet
transmit a ZLP instead in this case.

Fixes: 4d619f625a ("net: cdc_ncm: no point in filling up the NTBs if we send ZLPs")
Reported by: Yu-an Shih <yshih@nvidia.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 15:19:31 -04:00
David S. Miller
2ad0649687 Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next
John W. Linville says:

====================
pull request: wireless-next 2014-05-02

Please pull this batch of updates intended for the 3.16 stream...

For the mac80211 bits, Johannes says:

"In this round we have a large number of small features and
improvements from people too numerous to list here. The only really
bit thing is Michał and Luca's CSA work (including changing how
interface combination verification is done)."

For the Bluetooth bits, Gustavo says:

"Here goes some patches for the -next release. There is nothing
really special for this pull request, just a bunch of refactors,
fixes and clean ups."

For the ath10k/ath6kl bits, Kalle says:

"For ath6kl Kalle fixed a bunch of checkpatch warnings.

In ath10k we had more changes, major ones being:

* fix memory allocation failures after a firmware crash (Michal)

* some rework of DFS configuration to enable it correctly in all cases
  (Michal)

* add a new firmware crash option to make it possible to crash 10.1
  firmware for testing purposes (Marek P)

* fix RTS/CTS protection in certain cases (Marek K)

* fix wrong RSSI and rate reporting in some cases (Janusz)

* fix firmware stats reporting (Chun, Ben & Bartosz)"

For the iwlwifi bits, Emmanuel says:

"I have here a bunch of unrelated things. I disabled support for
-7.ucode which means that I can removed a lot of code. Eliad has
a brand new feature: we reduce the Tx power when the link allows -
this reduces our power consumption. The regular changes in power and
scan area. One interesting thing though is the patches from Johannes,
we have now GRO which allows to increase our throughput in TCP Rx. The
main advantage is that it reduces the number of TCP Acks - these TCP
Acks are completely useless when we are using A-MPDU since the first
packet of the A-MPDU generates a TCP Ack which is made obsolete by
the next packets."

Along with that, there are a variety of updates to b43, mwifiex,
rtl8180 and wil6210 drivers and a handful of other updates here
and there.

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

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 13:36:26 -04:00
David S. Miller
05f4640979 Merge branch 'am437x'
George Cherian says:

====================
The series adds CPTS support for AM4372.

Patch 1 - DT changes w.r.t clock changes for AM33xx.
Patch 2 - CPTS clock name harcoding in the driver is removed.
	  Easier to pass the clock name from dt rather than hardcoding in driver.
	  Also in prepration for DRA7x CPTS support.
Patch 3 - Enable the CPTS support for both DRA7x and AM4372 in the driver.
Patch 4 - Enable the Annexe F for L2 PTP for AM437x and DRA7x.
Patch 5 - Change the default clocksource to dpll_core_m5
Patch 6 - DT changes for AM4372.

v1 -> v2
	Patch 1 and 2 Re-ordering.
	Seperate TS_BITS define for Hw version V2 and V3
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 13:19:00 -04:00
George Cherian
de21b26e51 ARM: dts: am4372: Add clock names for cpsw and cpts
Add CPSW fck and CPTS clock and clock names for AM4372

Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 13:18:50 -04:00
George Cherian
f9786f419d ARM: AM43xx: clk: Change the cpts ref clock source to dpll_core_m5 clk
cpsw_cpts_rft_clk has got the choice of 3 clocksources
 -dpll_core_m4_ck
 -dpll_core_m5_ck
 -dpll_disp_m2_ck

By default dpll_core_m4_ck is selected, witn this as clock
source the CPTS doesnot work properly. It gives clockcheck errors
while running PTP.

 clockcheck: clock jumped backward or running slower than expected!

By selecting dpll_core_m5_ck as the clocksource fixes this issue.
In AM335x dpll_core_m5_ck is the default clocksource.

Signed-off-by: George Cherian <george.cherian@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 13:18:50 -04:00
George Cherian
09c5537246 drivers: net: cpsw: Enable Annexe F Time sync
Enable the Annex F Time Sync explicitly for DRA7x and AM4372.
With this enabled the L2 PTP is working.

while at that rename TS_BIT8 to TS_TTL_NONZERO

Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 13:18:50 -04:00
George Cherian
f7d403cb38 drivers: net: cpsw: Enable CPTS for DRA7xx and AM4372
Enable cpts hardware time stamping for Dra7xx and AM4372.
This enables PTPv2 for DRA7xx and AM4372.

Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 13:18:50 -04:00
George Cherian
d0415e7cc0 drivers: net: cpts: Remove hardcoded clock name for CPTS
CPTS refclk name is hardcoded, which makes it fail in case of DRA7x
Remove the hardcoded clock name for CPTS refclk and get the same from DT.

Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 13:18:50 -04:00
George Cherian
0987a6ef94 ARM: dts: am33xx: Add clock names for cpsw and cpts
Add CPSW fck and CPTS clock and clock names

Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 13:18:49 -04:00
Geert Uytterhoeven
9d4619c492 Altera TSE: ALTERA_TSE should depend on HAS_DMA
If NO_DMA=y:

drivers/built-in.o: In function `altera_tse_probe':
altera_tse_main.c:(.text+0x25ec2e): undefined reference to `dma_set_mask'
altera_tse_main.c:(.text+0x25ec78): undefined reference to `dma_supported'
altera_tse_main.c:(.text+0x25ecb6): undefined reference to `dma_supported'
drivers/built-in.o: In function `sgdma_async_read':
altera_sgdma.c:(.text+0x25f620): undefined reference to `dma_sync_single_for_cpu'
drivers/built-in.o: In function `sgdma_uninitialize':
(.text+0x25f678): undefined reference to `dma_unmap_single'
drivers/built-in.o: In function `sgdma_uninitialize':
(.text+0x25f696): undefined reference to `dma_unmap_single'
drivers/built-in.o: In function `sgdma_initialize':
(.text+0x25f6f0): undefined reference to `dma_map_single'
drivers/built-in.o: In function `sgdma_initialize':
(.text+0x25f702): undefined reference to `dma_mapping_error'
drivers/built-in.o: In function `sgdma_tx_buffer':
(.text+0x25f92a): undefined reference to `dma_sync_single_for_cpu'
drivers/built-in.o: In function `sgdma_rx_status':
(.text+0x25fa24): undefined reference to `dma_sync_single_for_cpu'
make[3]: *** [vmlinux] Error 1

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Vince Bridgers <vbridgers2013@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 13:16:22 -04:00
Andy King
2c4a336e0a vsock: Make transport the proto owner
Right now the core vsock module is the owner of the proto family. This
means there's nothing preventing the transport module from unloading if
there are open sockets, which results in a panic. Fix that by allowing
the transport to be the owner, which will refcount it properly.

Includes version bump to 1.0.1.0-k

Passes checkpatch this time, I swear...

Acked-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Andy King <acking@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 13:13:50 -04:00
Roopa Prabhu
56bfa7ee7c unregister_netdevice : move RTM_DELLINK to until after ndo_uninit
This patch fixes ordering of rtnl notifications during unregister_netdevice
by moving RTM_DELLINK notification to until after ndo_uninit.

The problem was seen with unregistering bond netdevices.

bond ndo_uninit callback generates a few RTM_NEWLINK notifications for
NETDEV_CHANGEADDR and NETDEV_FEAT_CHANGE. This is seen mostly when the
bond is deleted with slaves still enslaved to the bond.

During unregister netdevice (rollback_registered_many to be specific)
bond ndo_uninit is called after RTM_DELLINK notification goes out.
This results in userspace seeing RTM_DELLINK followed by a couple of
RTM_NEWLINK's.

In userspace problem was seen with libnl. libnl cache deletes the bond
when it sees RTM_DELLINK and re-adds the bond with the following
RTM_NEWLINK. Resulting in a stale bond entry in libnl cache when the kernel
has already deleted the bond.

This patch has been tested for bond, bridges and vlan devices.

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 13:11:36 -04:00
David S. Miller
b8dff4e60c Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville says:

====================
pull request: wireless 2014-05-01

Please pull the following batch of fixes intended for the 3.15 stream!

For the Bluetooth bits, Gustavo says:

"Some fixes for 3.15. There is a revert for the intel driver, a new
device id, and two important SSP fixes from Johan."

On top of that...

Ben Hutchings gives us a fix for an unbalanced irq enable in an
rtl8192cu error path.

Colin Ian King provides an rtlwifi fix for an uninitialized variable.

Felix Fietkau brings a pair of ath9k fixes, one that corrects a
hardware initialization value and another that removes an (unnecessary)
flag that was being used in a way that led to a software tx queue
hang in ath9k.

Gertjan van Wingerde pushes a MAINTAINERS change to remove himself
from the rt2x00 maintainer team.

Hans de Goede fixes a brcmfmac firmware load hang.

Larry Finger changes rtlwifi to use the correct queue for V0 traffic
on rtl8192se.

Rajkumar Manoharan corrects a race in ath9k driver initialization.

Stanislaw Gruszka fixes an rt2x00 bug in which disabling beaconing
once on USB devices led to permanently disabling beaconing for those
devices.

Tim Harvey provides fixes for a pair of ath9k issues that can lead
to soft lockups in that driver.

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

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 13:06:01 -04:00
Max Filippov
55b441be5c xtensa: ISS: don't depend on CONFIG_TTY
Build console support only when CONFIG_TTY is selected.
This restores ISS as the default platform for allnoconfig builds.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
2014-05-05 09:04:10 -07:00
Christoph Hellwig
0624bcaaf0 fix quoting of Ted's name in MAINTAINERS
Unpaired quotes really confuse mutt when copy & pasting it into the To:
form.

Signed-off-by: Christoph Hellwig <hch@lst.de>
[ I'm going to remove all silly quotes entirely one day, but that day is
  not today.  So I'll just apply this  - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-05-05 08:03:33 -07:00
Linus Torvalds
cae1d2cab4 This pull request includes the following fixes:
* 2 real bug-fixes from Tanya for the still "experimental" UBI fastmap feature
 * a one-liner from Kees which hardens kernel security
 * a small error-path fix, where we forget to free various resources in case of
   failure - spotted by the "smatch" tool
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Merge tag 'upstream-3.15-rc5' of git://git.infradead.org/linux-ubifs

Pull ubifs fixes from Artem Bityutskiy:
 "This includes the following fixes:

   - two real bug-fixes from Tanya for the still "experimental" UBI
     fastmap feature
   - a one-liner from Kees which hardens kernel security
   - a small error-path fix, where we forget to free various resources
     in case of failure - spotted by the 'smatch' tool"

* tag 'upstream-3.15-rc5' of git://git.infradead.org/linux-ubifs:
  UBI: avoid workqueue format string leak
  UBI: fix ubi free PEBs count calculation
  UBI: fix error path in __wl_get_peb
  UBIFS: fix remount error path
2014-05-05 07:48:50 -07:00
Matthew Daley
2145e15e05 floppy: don't write kernel-only members to FDRAWCMD ioctl output
Do not leak kernel-only floppy_raw_cmd structure members to userspace.
This includes the linked-list pointer and the pointer to the allocated
DMA space.

Signed-off-by: Matthew Daley <mattd@bugfuzz.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-05-05 07:46:56 -07:00
Matthew Daley
ef87dbe761 floppy: ignore kernel-only members in FDRAWCMD ioctl input
Always clear out these floppy_raw_cmd struct members after copying the
entire structure from userspace so that the in-kernel version is always
valid and never left in an interdeterminate state.

Signed-off-by: Matthew Daley <mattd@bugfuzz.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-05-05 07:46:55 -07:00
Vasily Averin
aff09ce303 bridge: superfluous skb->nfct check in br_nf_dev_queue_xmit
Currently bridge can silently drop ipv4 fragments.
If node have loaded nf_defrag_ipv4 module but have no nf_conntrack_ipv4,
br_nf_pre_routing defragments incoming ipv4 fragments
but nfct check in br_nf_dev_queue_xmit does not allow re-fragment combined
packet back, and therefore it is dropped in br_dev_queue_push_xmit without
incrementing of any failcounters

It seems the only way to hit the ip_fragment code in the bridge xmit
path is to have a fragment list whose reassembled fragments go over
the mtu. This only happens if nf_defrag is enabled. Thanks to
Florian Westphal for providing feedback to clarify this.

Defragmentation ipv4 is required not only in conntracks but at least in
TPROXY target and socket match, therefore #ifdef is changed from
NF_CONNTRACK_IPV4 to NF_DEFRAG_IPV4

Signed-off-by: Vasily Averin <vvs@openvz.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2014-05-05 16:05:43 +02:00
Vasily Averin
7c3d5ab1f3 ipv4: fix "conntrack zones" support for defrag user check in ip_expire
Defrag user check in ip_expire was not updated after adding support for
"conntrack zones".

This bug manifests as a RFC violation, since the router will send
the icmp time exceeeded message when using conntrack zones.

Signed-off-by: Vasily Averin <vvs@openvz.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2014-05-05 16:02:59 +02:00
Eliad Peller
e669ba2d06 mac80211: fix nested rtnl locking on ieee80211_reconfig
ieee80211_reconfig already holds rtnl, so calling
cfg80211_sched_scan_stopped results in deadlock.

Use the rtnl-version of this function instead.

Fixes: d43c6b6 ("mac80211: reschedule sched scan after HW restart")
Cc: stable@vger.kernel.org (3.14+)
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-05-05 15:14:58 +02:00
Eliad Peller
792e6aa7a1 cfg80211: add cfg80211_sched_scan_stopped_rtnl
Add locked-version for cfg80211_sched_scan_stopped.
This is used for some users that might want to
call it when rtnl is already locked.

Fixes: d43c6b6 ("mac80211: reschedule sched scan after HW restart")
Cc: stable@vger.kernel.org (3.14+)
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-05-05 15:14:57 +02:00
Eliad Peller
c1fbb25884 cfg80211: free sme on connection failures
cfg80211 is notified about connection failures by
__cfg80211_connect_result() call. However, this
function currently does not free cfg80211 sme.

This results in hanging connection attempts in some cases

e.g. when mac80211 authentication attempt is denied,
we have this function call:
ieee80211_rx_mgmt_auth() -> cfg80211_rx_mlme_mgmt() ->
cfg80211_process_auth() -> cfg80211_sme_rx_auth() ->
__cfg80211_connect_result()

but cfg80211_sme_free() is never get called.

Fixes: ceca7b712 ("cfg80211: separate internal SME implementation")
Cc: stable@vger.kernel.org (3.10+)
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-05-05 14:59:00 +02:00
Henning Rogge
f4ebddf9ab mac80211: Fix mac80211 station info rx bitrate for IBSS mode
Filter out incoming multicast packages before applying their bitrate
to the rx bitrate station info field to prevent them from setting the
rx bitrate to the basic multicast rate.

Signed-off-by: Henning Rogge <hrogge@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-05-05 14:52:03 +02:00
Kees Cook
bebfef150e UBI: avoid workqueue format string leak
When building the name for the workqueue thread, make sure a format
string cannot leak in from the disk name.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2014-05-05 09:31:33 +03:00
Tanya Brokhman
3d21bb7667 UBI: fix ubi free PEBs count calculation
The ubi->free_count should be updated with every insert/remove to/from
the ubi->free list.

Signed-off-by: Tanya Brokhman <tlinder@codeaurora.org>
Reviewed-by: Dolev Raviv <draviv@codeaurora.org>
Acked-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2014-05-05 09:31:33 +03:00
Tanya Brokhman
87ed89d21e UBI: fix error path in __wl_get_peb
In case of an error (if there are not free PEB's for example),
__wl_get_peb will return a negative value. In order to prevent access
violation we need to test the returned value prior to using it later on.

Signed-off-by: Tatyana Brokhman <tlinder@codeaurora.org>
Reviewed-by: Dolev Raviv <draviv@codeaurora.org>
Acked-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2014-05-05 09:31:33 +03:00
Artem Bityutskiy
fcdd57c890 UBIFS: fix remount error path
Dan's "smatch" checker found out that there was a bug in the error path of the
'ubifs_remount_rw()' function. Instead of jumping to the "out" label which
cleans-things up, we just returned.

This patch fixes the problem.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2014-05-05 09:31:33 +03:00
Linus Torvalds
89ca3b8819 Linux 3.15-rc4 2014-05-04 18:14:42 -07:00
David S. Miller
f4a7b5eec2 Merge branch 'filter-cleanups'
Daniel Borkmann says:

====================
BPF cleanups

v3->v4:
 - Sorry, noticed and fixed a typo in patch 3, rest as is
v2->v3:
 - Included Dave's feedback for unsigned long type in patch 3
 - Patch 1 and patch 2 unchanged since v1, dropped other
   two for now
v1->v2:
 - Only changed patch 5 as to suggestion from Alexei
 - Rest is the same
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-04 19:46:59 -04:00
Daniel Borkmann
eb9672f4a1 net: filter: misc/various cleanups
This contains only some minor misc cleanpus. We can spare us the
extra variable declaration in __skb_get_pay_offset(), the cast in
__get_random_u32() is rather unnecessary and in __sk_migrate_realloc()
we can remove the memcpy() and do a direct assignment of the structs.
Latter was suggested by Fengguang Wu found with coccinelle. Also,
remaining pointer casts of long should be unsigned long instead.

Suggested-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-04 19:46:31 -04:00
Daniel Borkmann
30743837dd net: filter: make register naming more comprehensible
The current code is a bit hard to parse on which registers can be used,
how they are mapped and all play together. It makes much more sense to
define this a bit more clearly so that the code is a bit more intuitive.
This patch cleans this up, and makes naming a bit more consistent among
the code. This also allows for moving some of the defines into the header
file. Clearing of A and X registers in __sk_run_filter() do not get a
particular register name assigned as they have not an 'official' function,
but rather just result from the concrete initial mapping of old BPF
programs. Since for BPF helper functions for BPF_CALL we already use
small letters, so be consistent here as well. No functional changes.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-04 19:46:31 -04:00
Daniel Borkmann
5bcfedf06f net: filter: simplify label names from jump-table
This patch simplifies label naming for the BPF jump-table.
When we define labels via DL(), we just concatenate/textify
the combination of instruction opcode which consists of the
class, subclass, word size, target register and so on. Each
time we leave BPF_ prefix intact, so that e.g. the preprocessor
generates a label BPF_ALU_BPF_ADD_BPF_X for DL(BPF_ALU, BPF_ADD,
BPF_X) whereas a label name of ALU_ADD_X is much more easy
to grasp. Pure cleanup only.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-04 19:46:31 -04:00
John Fastabend
f6a082fed1 net: sched: lock imbalance in hhf qdisc
hhf_change() takes the sch_tree_lock and releases it but misses the
error cases. Fix the missed case here.

To reproduce try a command like this,

# tc qdisc change dev p3p2 root hhf quantum 40960 non_hh_weight 300000

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-04 19:41:45 -04:00
Alexei Starovoitov
dfee07ccef net: filter: doc: expand and improve BPF documentation
In particular, this patch tries to clarify internal BPF calling
convention and adds internal BPF examples, JIT guide, use cases.

Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-04 19:40:00 -04:00
Linus Torvalds
164c09978c File locking related changes for v3.15 (pile #3)
- only an email address change to the MAINTAINERS file
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Merge tag 'locks-v3.15-3' of git://git.samba.org/jlayton/linux

Pull file locking change from Jeff Layton:
 "Only an email address change to the MAINTAINERS file"

* tag 'locks-v3.15-3' of git://git.samba.org/jlayton/linux:
  MAINTAINERS: email address change for Jeff Layton
2014-05-04 14:36:52 -07:00
Linus Torvalds
8a9f5ecd48 - vexpress platform clocks initialisation moved earlier following the
arm64 move of of_clk_init() call in a previous commit
 - Default DMA ops changed to non-coherent to preserve compatibility with
   32-bit ARM DT files. The "dma-coherent" property can be used to
   explicitly mark a device coherent. The Applied Micro DT file has been
   updated to avoid DMA cache maintenance for the X-Gene SATA controller
   (the only arm64 related driver with such assumption in -rc mainline)
 - Fixmap correction for earlyprintk
 - kern_addr_valid() fix for huge pages
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:
 "These are mostly arm64 fixes with an additional arm(64) platform fix
  for the initialisation of vexpress clocks (the latter only affecting
  arm64; the arch/arm64 code is SoC agnostic and does not rely on early
  SoC-specific calls)

   - vexpress platform clocks initialisation moved earlier following the
     arm64 move of of_clk_init() call in a previous commit
   - Default DMA ops changed to non-coherent to preserve compatibility
     with 32-bit ARM DT files.  The "dma-coherent" property can be used
     to explicitly mark a device coherent.  The Applied Micro DT file
     has been updated to avoid DMA cache maintenance for the X-Gene SATA
     controller (the only arm64 related driver with such assumption in
     -rc mainline)
   - Fixmap correction for earlyprintk
   - kern_addr_valid() fix for huge pages"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  vexpress: Initialise the sysregs before setting up the clocks
  arm64: Mark the Applied Micro X-Gene SATA controller as DMA coherent
  arm64: Use bus notifiers to set per-device coherent DMA ops
  arm64: Make default dma_ops to be noncoherent
  arm64: fixmap: fix missing sub-page offset for earlyprintk
  arm64: Fix for the arm64 kern_addr_valid() function
2014-05-04 14:34:50 -07:00
Linus Torvalds
e3fb7d4cc0 SCSI fixes on 20140503
This is two patches both fixing bugs in drivers (virtio-scsi and mpt2sas)
 causing an oops in certain circumstances.
 
 Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is two patches both fixing bugs in drivers (virtio-scsi and
  mpt2sas) causing an oops in certain circumstances"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  [SCSI] virtio-scsi: Skip setting affinity on uninitialized vq
  [SCSI] mpt2sas: Don't disable device twice at suspend.
2014-05-04 14:31:51 -07:00
Denys Fedoryshchenko
ecd15dd7e4 netfilter: nfnetlink: Fix use after free when it fails to process batch
This bug manifests when calling the nft command line tool without
nf_tables kernel support.

kernel message:
[   44.071555] Netfilter messages via NETLINK v0.30.
[   44.072253] BUG: unable to handle kernel NULL pointer dereference at 0000000000000119
[   44.072264] IP: [<ffffffff8171db1f>] netlink_getsockbyportid+0xf/0x70
[   44.072272] PGD 7f2b74067 PUD 7f2b73067 PMD 0
[   44.072277] Oops: 0000 [#1] SMP
[...]
[   44.072369] Call Trace:
[   44.072373]  [<ffffffff8171fd81>] netlink_unicast+0x91/0x200
[   44.072377]  [<ffffffff817206c9>] netlink_ack+0x99/0x110
[   44.072381]  [<ffffffffa004b951>] nfnetlink_rcv+0x3c1/0x408 [nfnetlink]
[   44.072385]  [<ffffffff8171fde3>] netlink_unicast+0xf3/0x200
[   44.072389]  [<ffffffff817201ef>] netlink_sendmsg+0x2ff/0x740
[   44.072394]  [<ffffffff81044752>] ? __mmdrop+0x62/0x90
[   44.072398]  [<ffffffff816dafdb>] sock_sendmsg+0x8b/0xc0
[   44.072403]  [<ffffffff812f1af5>] ? copy_user_enhanced_fast_string+0x5/0x10
[   44.072406]  [<ffffffff816dbb6c>] ? move_addr_to_kernel+0x2c/0x50
[   44.072410]  [<ffffffff816db423>] ___sys_sendmsg+0x3c3/0x3d0
[   44.072415]  [<ffffffff811301ba>] ? handle_mm_fault+0xa9a/0xc60
[   44.072420]  [<ffffffff811362d6>] ? mmap_region+0x166/0x5a0
[   44.072424]  [<ffffffff817da84c>] ? __do_page_fault+0x1dc/0x510
[   44.072428]  [<ffffffff812b8b2c>] ? apparmor_capable+0x1c/0x60
[   44.072435]  [<ffffffff817d6e9a>] ? _raw_spin_unlock_bh+0x1a/0x20
[   44.072439]  [<ffffffff816dfc86>] ? release_sock+0x106/0x150
[   44.072443]  [<ffffffff816dc212>] __sys_sendmsg+0x42/0x80
[   44.072446]  [<ffffffff816dc262>] SyS_sendmsg+0x12/0x20
[   44.072450]  [<ffffffff817df616>] system_call_fastpath+0x1a/0x1f

Signed-off-by: Denys Fedoryshchenko <nuclearcat@nuclearcat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2014-05-04 15:14:08 +02:00
Florian Westphal
895162b110 netfilter: ipv4: defrag: set local_df flag on defragmented skb
else we may fail to forward skb even if original fragments do fit
outgoing link mtu:

1. remote sends 2k packets in two 1000 byte frags, DF set
2. we want to forward but only see '2k > mtu and DF set'
3. we then send icmp error saying that outgoing link is 1500

But original sender never sent a packet that would not fit
the outgoing link.

Setting local_df makes outgoing path test size vs.
IPCB(skb)->frag_max_size, so we will still send the correct
error in case the largest original size did not fit
outgoing link mtu.

Reported-by: Maxime Bizon <mbizon@freebox.fr>
Suggested-by: Maxime Bizon <mbizon@freebox.fr>
Fixes: 5f2d04f1f9 (ipv4: fix path MTU discovery with connection tracking)
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2014-05-04 13:23:28 +02:00