Commit graph

302285 commits

Author SHA1 Message Date
Felix Fietkau
bfc441a4bb ath9k_hw: apply internal regulator settings on AR933x
On AR933x, the internal regulator settings need to be applied before the
PLL init to avoid stability issues.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-29 13:45:23 -04:00
Felix Fietkau
5a71f13402 ath9k_hw: update AR933x initvals to fix issues with high power devices
"> Can you provide more information about the issues with high power devices?
Tx being flakey and Rx not working at all."

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-29 13:45:22 -04:00
Felix Fietkau
81357a281d ath9k: fix a use-after-free-bug when ath_tx_setup_buffer() fails
ath_tx_setup_buffer() can fail if there is no ath_buf left, or if mapping DMA
failed. In this case it frees the skb passed to it.
If ath_tx_setup_buffer is called from ath_tx_form_aggr, the skb is still
linked into the tid buffer list and must be dequeued before being released.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Cc: stable@vger.kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-29 13:45:22 -04:00
Felix Fietkau
ceea2a5196 ath9k: stop rx dma before stopping tx
It has been found that active Rx can interfere with stopping tx DMA, which
could result in at least parts of those "Failed to stop Tx DMA!" messages.
Stopping rx before tx should prevent that.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-29 13:45:22 -04:00
Felix Fietkau
9b4760e301 ath5k: add possible wiphy interface combinations
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
2012-05-29 13:42:45 -04:00
Soumik Das
992e68bf2e mac80211: Fix race in checking AP status by sending null frame
mac80211 tries to verify the existence of the current AP by
probing or sending a NULL frame in function
ieee80211_mgd_probe_ap_send. It 1st sends a null frame to the AP,
increments probe_send_count and waits for the ACK to the NULL
frame for a finite duration of time. At times, it happens that by
the time mac80211 gets to increment probe_send_count, the ACK for
the NULL frame transmitted has already been processed. This leads
to a race condition where mac80211 times out waiting for the ACK
for the NULL frame causing unnecessary disconnection with the AP.

Signed-off-by: Soumik Das <soumik.das@stericsson.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-25 11:16:16 -04:00
Hauke Mehrtens
edb9bc9a1e brcmfmac: use vmalloc to allocate mem for the firmware
The firmware is more than 300KB big and you should not use kmalloc for
such big allocations. This allocation with kmalloc failed on my mips
based device (BCM47186).

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-25 11:16:16 -04:00
Dan Carpenter
885ba1da68 NFC: potential integer overflow problem in check_crc()
If "buf[0]" is 255 then "len" gets set to 0.  The call to
"crc_ccitt(0xffff, buf, len - 2);" casts the "len - 2" to a high
positive number which is ugly.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-25 11:16:16 -04:00
Grazvydas Ignotas
f380f2c4a1 wl1251: fix oops on early interrupt
This driver disables interrupt just after requesting it and enables it
later, after interface is up. However currently there is a time window
between request_irq() and disable_irq() where if interrupt arrives, the
driver oopses because it's not yet ready to process it. This can be
reproduced by inserting the module, associating and removing the module
multiple times.

Eliminate this race by setting IRQF_NOAUTOEN flag before request_irq().

Cc: stable@vger.kernel.org # v2.6.37+
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-25 11:16:16 -04:00
Johannes Berg
75813bde1f iwlwifi: fix memory leak if opmode fails to init
If drv->op_mode is NULL after trying to init the
opmode, we go to the wrong label. Fix this, and
clean up the code a bit.

Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Reviewed-by: Guy Cohen <guy.cohen@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-25 11:12:41 -04:00
Meenakshi Venkataraman
f4c37176ef iwlwifi: do not send lq cmd when station add fails
When adding a station fails in
iwl_restore_stations, the driver treats it
like a successful station add and sends a
link quality command, when it it shouldn't.

This patch fixes one of the potential
sources for kernel warnings like this one:

WARNING: at drivers/net/wireless/iwlwifi/iwl-agn-sta.c:905 iwl_send_lq_cmd+0x130/0x217 [iwlwifi]()
Hardware name: 3323A2G
Modules linked in: ...
Pid: 17359, comm: kworker/u:2 Tainted: G           O 3.3.0-wl+ #1
Call Trace:
 [<ffffffff81039620>] warn_slowpath_common+0x7e/0x96
 [<ffffffff8103964d>] warn_slowpath_null+0x15/0x17
 [<ffffffffa02a9f0b>] iwl_send_lq_cmd+0x130/0x217 [iwlwifi]
 [<ffffffffa02aa1fb>] iwl_restore_stations+0x209/0x289 [iwlwifi]
 [<ffffffffa02b07c2>] iwlagn_commit_rxon+0x602/0x7bd [iwlwifi]
 [<ffffffffa02b111f>] iwlagn_bss_info_changed+0x247/0x31a [iwlwifi]
 [<ffffffffa0861437>] ieee80211_bss_info_change_notify+0x1a5/0x1ba [mac80211]
 [<ffffffffa088afad>] ieee80211_destroy_auth_data+0x4b/0x70 [mac80211]
 [<ffffffffa088df26>] ieee80211_sta_work+0xb5/0x954 [mac80211]

Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Reviewed-by: Wey-Yi W Guy <wey-yi.w.guy@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-25 11:12:41 -04:00
Johannes Berg
a7b2ad55ca iwlwifi: remove ucode16 option
The ucode16 option is still very much work in
progress, so there's no need to ask any users
about it. Remove the option and code for now,
we'll put it back when it's actually working.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-25 11:12:41 -04:00
Meenakshi Venkataraman
66a770729a iwlwifi: do not use shadow registers by default
Shadow registers in the device are meant to
allow the driver to update certain device
registers without needing to wake up all
components of the device. However, using
this feature in the device causes
communication between the driver and the
device to become unreliable, resulting in
host command timeouts.

Disable this feature by default till a fix is
available for the bug.

Cc: stable@vger.kernel.org #2.6.38+
Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-25 11:12:40 -04:00
Emmanuel Grumbach
ebed633c61 iwlwifi: fix the Transmit Frame Descriptor rings
The logic that allows to have a short TFD queue was completely wrong.
We do maintain 256 Transmit Frame Descriptors, but they point to
recycled buffers. We used to attach and de-attach different TFDs for
the same buffer and it worked since they pointed to the same buffer.

Also zero the number of BDs after unmapping a TFD. This seems not
necessary since we don't reclaim the same TFD twice, but I like
housekeeping.

This patch solves this warning:

[ 6427.079855] WARNING: at lib/dma-debug.c:866 check_unmap+0x727/0x7a0()
[ 6427.079859] Hardware name: Latitude E6410
[ 6427.079865] iwlwifi 0000:02:00.0: DMA-API: device driver tries to free DMA memory it has not allocated [device address=0x00000000296d393c] [size=8 bytes]
[ 6427.079870] Modules linked in: ...
[ 6427.079950] Pid: 6613, comm: ifconfig Tainted: G           O 3.3.3 #5
[ 6427.079954] Call Trace:
[ 6427.079963]  [<c10337a2>] warn_slowpath_common+0x72/0xa0
[ 6427.079982]  [<c1033873>] warn_slowpath_fmt+0x33/0x40
[ 6427.079988]  [<c12dcb77>] check_unmap+0x727/0x7a0
[ 6427.079995]  [<c12dcdaa>] debug_dma_unmap_page+0x5a/0x80
[ 6427.080024]  [<fe2312ac>] iwlagn_unmap_tfd+0x12c/0x180 [iwlwifi]
[ 6427.080048]  [<fe231349>] iwlagn_txq_free_tfd+0x49/0xb0 [iwlwifi]
[ 6427.080071]  [<fe228e37>] iwl_tx_queue_unmap+0x67/0x90 [iwlwifi]
[ 6427.080095]  [<fe22d221>] iwl_trans_pcie_stop_device+0x341/0x7b0 [iwlwifi]
[ 6427.080113]  [<fe204b0e>] iwl_down+0x17e/0x260 [iwlwifi]
[ 6427.080132]  [<fe20efec>] iwlagn_mac_stop+0x6c/0xf0 [iwlwifi]
[ 6427.080168]  [<fd8480ce>] ieee80211_stop_device+0x5e/0x190 [mac80211]
[ 6427.080198]  [<fd833208>] ieee80211_do_stop+0x288/0x620 [mac80211]
[ 6427.080243]  [<fd8335b7>] ieee80211_stop+0x17/0x20 [mac80211]
[ 6427.080250]  [<c148dac1>] __dev_close_many+0x81/0xd0
[ 6427.080270]  [<c148db3d>] __dev_close+0x2d/0x50
[ 6427.080276]  [<c148d152>] __dev_change_flags+0x82/0x150
[ 6427.080282]  [<c148e3e3>] dev_change_flags+0x23/0x60
[ 6427.080289]  [<c14f6320>] devinet_ioctl+0x6a0/0x770
[ 6427.080296]  [<c14f8705>] inet_ioctl+0x95/0xb0
[ 6427.080304]  [<c147a0f0>] sock_ioctl+0x70/0x270

Cc: stable@vger.kernel.org
Reported-by: Antonio Quartulli <ordex@autistici.org>
Tested-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Wey-Yi W Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-25 11:12:40 -04:00
Meenakshi Venkataraman
882dde8eb0 iwlwifi: update BT traffic load states correctly
When BT traffic load changes from its
previous state, a new LQ command needs to be
sent down to the firmware. This needs to
be done only once per change. The state
variable that keeps track of this change is
last_bt_traffic_load. However, it was not
being updated when the change had been
handled. Not updating this variable was
causing a flood of advanced BT config
commands to be sent to the firmware. Fix
this.

Cc: stable@vger.kernel.org #2.6.38+
Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-25 11:12:40 -04:00
John W. Linville
a0d0d1685f Merge git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next 2012-05-22 15:18:06 -04:00
Linus Torvalds
31a67102f4 Fix blocking allocations called very early during bootup
During early boot, when the scheduler hasn't really been fully set up,
we really can't do blocking allocations because with certain (dubious)
configurations the "might_resched()" calls can actually result in
scheduling events.

We could just make such users always use GFP_ATOMIC, but quite often the
code that does the allocation isn't really aware of the fact that the
scheduler isn't up yet, and forcing that kind of random knowledge on the
initialization code is just annoying and not good for anybody.

And we actually have a the 'gfp_allowed_mask' exactly for this reason:
it's just that the kernel init sequence happens to set it to allow
blocking allocations much too early.

So move the 'gfp_allowed_mask' initialization from 'start_kernel()'
(which is some of the earliest init code, and runs with preemption
disabled for good reasons) into 'kernel_init()'.  kernel_init() is run
in the newly created thread that will become the 'init' process, as
opposed to the early startup code that runs within the context of what
will be the first idle thread.

So by the time we reach 'kernel_init()', we know that the scheduler must
be at least limping along, because we've already scheduled from the idle
thread into the init thread.

Reported-by: Steven Rostedt <rostedt@goodmis.org>
Cc: David Rientjes <rientjes@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-21 12:52:42 -07:00
Sam Ravnborg
e47b65b032 net: drop NET dependency from HAVE_BPF_JIT
There is no point having the NET dependency on the select target, as it
forces all users to depend on NET to tell they support BPF_JIT.  Move
the config option to the bottom of the file - this could be a nice place
also for future "selectable" config symbols.

Fix up all users to drop the dependency on NET now that it is not
required to supress warnings for non-NET builds.

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: David Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-21 12:50:12 -07:00
Linus Torvalds
8e95a53ba4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lliubbo/blackfin
Pull blackfin changes from Bob Liu:
 "The biggest change was added an new processor(bf60x series).

  Bf60x series processor of blackfin can up to 1GHz with Hardware
  Support for HD Video Analytics, it use the same blackfin ISA but with
  some changes on system buses, interrupt controller and peripheral
  devices.

  Added dir arch/blackfin/mach-bf609/ and did some changes to the
  framework made linux working fine on the reference board bf609-ezkit
  now."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lliubbo/blackfin: (41 commits)
  blackfin: fix build after add bf60x mach/pm.h
  blackfin: twi: include linux/i2c.h
  blackfin: bf60x: add head file for crc controller
  blackfin: bf60x: twi: work around temporary anomaly 0501001
  blackfin: twi: Move TWI MMR access macro to twi head file
  blackfin: twi: Move TWI peripheral pin request array to platform data
  blackfin: bf60x: anomaly: Add a temporary anomaly 0501001
  blackfin: bf60x: Rename the DDR controller macro
  blackfin: mach-bf609: pm: cleanup bfin_deepsleep
  blackfin: bf60x: cleanup get clock code
  blackfin: bf60x: pm: Add a debug option to calculate kernel wakeup time.
  blackfin: bf60x: add wakeup source select
  blackfin: bf60x: make clock changeable in kernel menuconfig
  blackfin:mach-bf609: fix norflash for bf609-ezkit
  blackfin: mach-bf609: add can_wakeup to ethernet device
  blackfin: remove redundant CONFIG_BF60x macro
  blackfin: rotary: Add pm_wakeup flag to platform data structure.
  bfin_gpio: fix bf548-ezkit kernel fail to boot
  bfin_dma: fix initcall return error in proc_dma_init()
  Blackfin: delete fork func
  ...
2012-05-21 12:47:53 -07:00
Linus Torvalds
cd975ae0ce Clean up some c6x Kconfig items and add support for Elf FDPIC loader.
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Merge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming

Pull c6x updates from Mark Salter:
 "Clean up some c6x Kconfig items and add support for Elf FDPIC loader."

* tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming:
  C6X: remove unused config items
  C6X: add support to build with BINFMT_ELF_FDPIC
  C6X: change main arch kbuild symbol
2012-05-21 12:46:48 -07:00
Linus Torvalds
881bcabbde Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull m68k updates from Geert Uytterhoeven.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: Setup CROSS_COMPILE at the top
  m68k: Correct the Atari ALLOWINT definition
  m68k/video: Create <asm/vga.h>
  m68k: Make sure {read,write}s[bwl]() are always defined
  m68k/mm: Port OOM changes to do_page_fault()
  scsi/atari: Make more functions static
  scsi/atari: Revive "atascsi=" setup option
  net/ariadne: Improve debug prints
  m68k/atari: Change VME irq numbers from unsigned long to unsigned int
  m68k/amiga: Use arch_initcall() for registering platform devices
  m68k/amiga: Add error checks when registering platform devices
  m68k/amiga: Mark z_dev_present() __init
  m68k: Remove unused MAX_NOINT_IPL definition
2012-05-21 12:43:54 -07:00
Linus Torvalds
e60b9a0346 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Martin Schwidefsky:
 "Just a random collection of bug-fixes and cleanups, nothing new in
  this merge request."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (46 commits)
  s390/ap: Fix wrong or missing comments
  s390/ap: move receive callback to message struct
  s390/dasd: re-prioritize partition detection message
  s390/qeth: reshuffle initialization
  s390/qeth: cleanup drv attr usage
  s390/claw: cleanup drv attr usage
  s390/lcs: cleanup drv attr usage
  s390/ctc: cleanup drv attr usage
  s390/ccwgroup: remove ccwgroup_create_from_string
  s390/qeth: stop using struct ccwgroup driver for discipline callbacks
  s390/qeth: switch to ccwgroup_create_dev
  s390/claw: switch to ccwgroup_create_dev
  s390/lcs: switch to ccwgroup_create_dev
  s390/ctcm: switch to ccwgroup_create_dev
  s390/ccwgroup: exploit ccwdev_by_dev_id
  s390/ccwgroup: introduce ccwgroup_create_dev
  s390: fix race on TIF_MCCK_PENDING
  s390/barrier: make use of fast-bcr facility
  s390/barrier: cleanup barrier functions
  s390/claw: remove "eieio" calls
  ...
2012-05-21 12:41:17 -07:00
Linus Torvalds
9daeaa3705 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next
Pull sparc updates from David Miller:

1) Kill off support for sun4c and Cypress sun4m chips.

   And as a result we were able to also kill off that ugly btfixup thing
   that required multi-stage links of the final vmlinux image in the
   Kbuild system.  This should make the kbuild maintainers really happy.

   Thanks a lot to Sam Ravnborg for his tireless efforts to get this
   going.

2) Convert sparc64 to nobootmem.  I suspect now with sparc32 being a lot
   cleaner, it should be able to fall in line and modernize in this area
   too.

3) Make sparc32 use generic clockevents, from Tkhai Kirill.

[ I fixed up the BPF rules, and tried to clean up the build rules too.
  But I don't have - or want - a sparc cross-build environment, so the
  BPF rule bug and the related build cleanup was all done with just a
  bare "make -n" pseudo-test.      - Linus ]

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next: (110 commits)
  sparc32: use flushi when run-time patching in per_cpu_patch
  sparc32: fix cpuid_patch run-time patching
  sparc32: drop unused inline functions in srmmu.c
  sparc32: drop unused functions in pgtsrmmu.h
  sparc32,leon: move leon mmu functions to leon_mm.c
  sparc32,leon: remove duplicate definitions in leon.h
  sparc32,leon: remove duplicate UART register definitions
  sparc32,leon: move leon ASI definitions to asi.h
  sparc32: move trap table to a separate file
  sparc64: renamed ttable.S to ttable_64.S
  sparc32: Remove asm/sysen.h header.
  sparc32: Delete asm/smpprim.h
  sparc32: Remove unused empty_bad_page{,_table} declarations.
  sparc32: Kill boot_cpu_id4
  sparc32: Move GET_PROCESSOR*_ID() out of asm/asmmacro.h
  sparc32: Remove completely unused code from asm/cache.h
  sparc32: Add ucmpdi2.o to obj-y instead of lib-y.
  sparc32: add ucmpdi2
  sparc: introduce arch/sparc/Kbuild
  sparc: remove obsolete documentation
  ...
2012-05-21 10:32:01 -07:00
Linus Torvalds
cb62ab71fe Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking changes from David Miller:

 1) Get rid of the error prone NLA_PUT*() macros that used an embedded
    goto.

 2) Kill off the token-ring and MCA networking drivers, from Paul
    Gortmaker.

 3) Reduce high-order allocations made by datagram AF_UNIX sockets, from
    Eric Dumazet.

 4) Add PTP hardware clock support to IGB and IXGBE, from Richard
    Cochran and Jacob Keller.

 5) Allow users to query timestamping capabilities of a card via
    ethtool, from Richard Cochran.

 6) Add loadbalance mode to the teaming driver, from Jiri Pirko.  Part
    of this is that we can now have BPF filters not attached to sockets,
    and the loadbalancing function is calculated using one.

 7) Francois Romieu went through the network drivers removing gratuitous
    uses of netdev->base_addr, perhaps some day we can remove it
    completely but it's used for ISA probing still.

 8) Add a BPF JIT for sparc.  I know, who cares, right? :-)

 9) Move networking sysctl registry away from using the compatability
    mode interfaces in the sysctl code.  From Eric W Biederman.

10) Pavel Emelyanov added a way to save and restore TCP socket state via
    TCP_REPAIR, TCP_REPAIR_QUEUE, and TCP_QUEUE_SEQ socket options as
    well as a way to forcefully bind a socket to a port via the
    sk->sk_reuse value SK_FORCE_REUSE.  There is also a
    TCP_REPAIR_OPTIONS which allows to reinstante the TCP options
    enabled on the connection.

11) Several enhancements from Eric Dumazet that, in particular, can
    enhance splice performance on TCP sockets significantly.

     a) Reset the offset of the per-socket sendmsg page when we know
        we're the only use of the page in linear_to_page().

     b) Add facilities such that skb->data can be backed a page rather
        than SLAB kmalloc'd memory.  In particular devices which were
        receiving into linear RX buffers can now end up providing paged
        data.

    The big result is that code like splice and GRO do not have to copy
    any more.

12) Allow a pure sender to more gracefully handle ACK backlogs in TCP.
    What can happen at high rates is that the sender hasn't grown his
    receive buffer limits at all (he's not receiving data so really
    doesn't need to), but the non-data ACKs consume receive buffer
    space.

    sk_add_backlog() is too aggressive in dropping frames in this case,
    so relax it's requirements by using the receive buffer plus the send
    buffer limit as the backlog limit instead of just the former.

    Also from Eric Dumazet.

13) Add ipv6 support to L2TP, from Benjamin LaHaise, James Chapman, and
    Chris Elston.

14) Implement TCP early retransmit (RFC 5827), from Yuchung Cheng.
    Basically, we can start fast retransmit before hiting the dupack
    threshold under certain conditions.

15) New CODEL active queue management packet scheduler, from Eric
    Dumazet based upon initial work by Dave Taht.

    Basically, the big feature is that packets are dropped (or ECN bits
    are set) based upon how long packets live in the queue, rather than
    the queue length (which is what RED uses).

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1341 commits)
  drivers/net/stmmac: seq_file fix memory leak
  ipv6/exthdrs: strict Pad1 and PadN check
  USB: qmi_wwan: Add ZTE (Vodafone) K3520-Z
  USB: qmi_wwan: Add ZTE (Vodafone) K3765-Z
  USB: qmi_wwan: Make forced int 4 whitelist generic
  net/ipv4: replace simple_strtoul with kstrtoul
  net/ipv4/ipconfig: neaten __setup placement
  net: qmi_wwan: Add Vodafone/Huawei K5005 support
  net: cdc_ether: Add ZTE WWAN matches before generic Ethernet
  ipv6: use skb coalescing in reassembly
  ipv4: use skb coalescing in defragmentation
  net: introduce skb_try_coalesce()
  net:ipv6:fixed space issues relating to operators.
  net:ipv6:fixed a trailing white space issue.
  ipv6: disable GSO on sockets hitting dst_allfrag
  tg3: use netdev_alloc_frag() API
  net: napi_frags_skb() is static
  ppp: avoid false drop_monitor false positives
  ipv6: bool/const conversions phase2
  ipx: Remove spurious NULL checking in ipx_ioctl().
  ...
2012-05-21 10:03:46 -07:00
Linus Torvalds
31ed8e6f93 Merge branch 'dentry-cleanups' (dcache access cleanups and optimizations)
This branch simplifies and clarifies the dcache lookup, and allows us to
do certain nice optimizations when comparing dentries.  It also cleans
up the interface to __d_lookup_rcu(), especially around passing the
inode information around.

* dentry-cleanups:
  vfs: make it possible to access the dentry hash/len as one 64-bit entry
  vfs: move dentry name length comparison from dentry_cmp() into callers
  vfs: do the careful dentry name access for all dentry_cmp cases
  vfs: remove unnecessary d_unhashed() check from __d_lookup_rcu
  vfs: clean up __d_lookup_rcu() and dentry_cmp() interfaces
2012-05-21 08:50:57 -07:00
Linus Torvalds
7e5cb5e151 Merge branch 'vfs-cleanups' (random vfs cleanups)
This teaches vfs_fstat() to use the appropriate f[get|put]_light
functions, allowing it to avoid some unnecessary locking for the common
case.

More noticeably, it also cleans up and simplifies the "getname_flags()"
function, which now relies on the architecture strncpy_from_user() doing
all the user access checks properly, instead of hacking around the fact
that on x86 it didn't use to do it right (see commit 92ae03f2ef: "x86:
merge 32/64-bit versions of 'strncpy_from_user()' and speed it up").

* vfs-cleanups:
  VFS: make vfs_fstat() use f[get|put]_light()
  VFS: clean up and simplify getname_flags()
  x86: make word-at-a-time strncpy_from_user clear bytes at the end
2012-05-21 08:46:08 -07:00
Linus Torvalds
8c12fec90c Merge branch 'stat-cleanups' (clean up copying of stat info to user space)
This makes cp_new_stat() a bit more readable, and avoids having to
memset() the whole structure just to fill in a couple of padding fields.

This is another result of me looking at code generation of functions
that show up high on certain kernel profiles, and just going "Oh, let's
just clean that up".

Architectures that don't supply the #define to fill just the padding
fields will still fall back to memset().

* stat-cleanups:
  vfs: don't force a big memset of stat data just to clear padding fields
  vfs: de-crapify "cp_new_stat()" function
2012-05-21 08:41:38 -07:00
Linus Torvalds
dddbd5414b Merge branch 'vm-cleanups' (unmap_vma() interface cleanup)
This series sanitizes the interface to unmap_vma().  The crazy interface
annoyed me no end when I was looking at unmap_single_vma(), which we can
spend quite a lot of time in (especially with loads that have a lot of
small fork/exec's: shell scripts etc).

Moving the nr_accounted calculations to where they belong at least
clarifies things a little.  I hope to come back to look at the
performance of this later, but if/when I get back to it I at least don't
have to see the crazy interfaces any more.

* vm-cleanups:
  vm: remove 'nr_accounted' calculations from the unmap_vmas() interfaces
  vm: simplify unmap_vmas() calling convention
2012-05-21 08:37:07 -07:00
Djalal Harouni
74863948f9 drivers/net/stmmac: seq_file fix memory leak
Use single_release() instead of seq_release() to free memory allocated
by single_open().

Signed-off-by: Djalal Harouni <tixxdz@opendz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-21 03:37:56 -04:00
Steven Miao
672552adb3 blackfin: fix build after add bf60x mach/pm.h
Signed-off-by: Steven Miao <realmz6@gmail.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21 14:55:07 +08:00
Sonic Zhang
bda45b8f34 blackfin: twi: include linux/i2c.h
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21 14:55:05 +08:00
Sonic Zhang
7967ba013e blackfin: bf60x: add head file for crc controller
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21 14:55:04 +08:00
Sonic Zhang
c41704f509 blackfin: bf60x: twi: work around temporary anomaly 0501001
Disable IRQ when reading MMR rcv_data8 and rcv_data16.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21 14:55:03 +08:00
Sonic Zhang
1e92bf6d80 blackfin: twi: Move TWI MMR access macro to twi head file
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21 14:55:01 +08:00
Sonic Zhang
cf93feb3a0 blackfin: twi: Move TWI peripheral pin request array to platform data
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21 14:55:00 +08:00
Sonic Zhang
913f2f2df7 blackfin: bf60x: anomaly: Add a temporary anomaly 0501001
Add a temporary anomaly 0501001 for data loss in MMR reading if interrupted.
Add work around for bfin serial driver as well.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21 14:54:58 +08:00
Sonic Zhang
8bf7135fff blackfin: bf60x: Rename the DDR controller macro
Rename the DDR controller macro from DDR0 to DMC0 to avoid confustion for
bf60x.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21 14:54:57 +08:00
Steven Miao
5a84775e99 blackfin: mach-bf609: pm: cleanup bfin_deepsleep
In bfin_deepsleep(), using register instead of local variable and remove
unused dpmc register read.

Signed-off-by: Steven Miao <realmz6@gmail.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21 14:54:55 +08:00
Sonic Zhang
1d3dbda6ed blackfin: bf60x: cleanup get clock code
Remove redundance code for get clock.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21 14:54:53 +08:00
Sonic Zhang
72b099ed93 blackfin: bf60x: pm: Add a debug option to calculate kernel wakeup time.
Display the total time when kernel resumes normal from standby or suspend to mem
mode.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21 14:54:52 +08:00
Steven Miao
0fbd88ca20 blackfin: bf60x: add wakeup source select
Support select the wakeup source for power management on bf60x.

Signed-off-by: Steven Miao <realmz6@gmail.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21 14:54:50 +08:00
Bob Liu
7c141c1c5c blackfin: bf60x: make clock changeable in kernel menuconfig
Add clock changeable support in kernel menuconfig for bf60x.

Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21 14:54:49 +08:00
Bob Liu
1c40093976 blackfin:mach-bf609: fix norflash for bf609-ezkit
Set smc register to async flash protocol mode and use physmap driver instead of
bfin-bf6xx.

Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21 14:54:47 +08:00
Bob Liu
6e1953e140 blackfin: mach-bf609: add can_wakeup to ethernet device
Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21 14:54:46 +08:00
Sonic Zhang
364130227d blackfin: remove redundant CONFIG_BF60x macro
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21 14:54:44 +08:00
Sonic Zhang
5b8163a3f9 blackfin: rotary: Add pm_wakeup flag to platform data structure.
Rotary can't be used as a wakeup source in all platform.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21 14:54:43 +08:00
Steven Miao
ec98e6b836 bfin_gpio: fix bf548-ezkit kernel fail to boot
Fix bf548-ezkit kernel fail to boot when request peripheral pins.

Signed-off-by: Steven Miao <realmz6@gmail.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21 14:54:41 +08:00
Steven Miao
1a1214519b bfin_dma: fix initcall return error in proc_dma_init()
Signed-off-by: Steven Miao <realmz6@gmail.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21 14:54:40 +08:00
Mike Frysinger
080bb657eb Blackfin: delete fork func
We don't implement fork() since we are no-mmu, so redirect it to the
existing ENOSYS stub rather than adding a custom EINVAL one.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21 14:54:39 +08:00
Mike Frysinger
592b8785b9 Blackfin: fix unused clk var warning
This is only used on BF60x code (so this patch should get squashed into
the original one that added it).

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21 14:54:37 +08:00