Commit Graph

361339 Commits

Author SHA1 Message Date
Will Deacon
c3d6b62839 alpha: boot: fix build breakage introduced by system.h disintegration
Commit ec2212088c ("Disintegrate asm/system.h for Alpha") removed the
system.h include from boot/head.S, which puts the PAL_* asm constants
out of scope.

Include <asm/pal.h> so we can get building again.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Cc: David Rusling <david.rusling@linaro.org>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-08 15:05:34 -08:00
Konstantin Khlebnikov
15cf17d26e memcg: initialize kmem-cache destroying work earlier
Fix a warning from lockdep caused by calling cancel_work_sync() for
uninitialized struct work.  This path has been triggered by destructon
kmem-cache hierarchy via destroying its root kmem-cache.

  cache ffff88003c072d80
  obj ffff88003b410000 cache ffff88003c072d80
  obj ffff88003b924000 cache ffff88003c20bd40
  INFO: trying to register non-static key.
  the code is fine but needs lockdep annotation.
  turning off the locking correctness validator.
  Pid: 2825, comm: insmod Tainted: G           O 3.9.0-rc1-next-20130307+ #611
  Call Trace:
    __lock_acquire+0x16a2/0x1cb0
    lock_acquire+0x8a/0x120
    flush_work+0x38/0x2a0
    __cancel_work_timer+0x89/0xf0
    cancel_work_sync+0xb/0x10
    kmem_cache_destroy_memcg_children+0x81/0xb0
    kmem_cache_destroy+0xf/0xe0
    init_module+0xcb/0x1000 [kmem_test]
    do_one_initcall+0x11a/0x170
    load_module+0x19b0/0x2320
    SyS_init_module+0xc6/0xf0
    system_call_fastpath+0x16/0x1b

Example module to demonstrate:

  #include <linux/module.h>
  #include <linux/slab.h>
  #include <linux/mm.h>
  #include <linux/workqueue.h>

  int __init mod_init(void)
  {
  	int size = 256;
  	struct kmem_cache *cache;
  	void *obj;
  	struct page *page;

  	cache = kmem_cache_create("kmem_cache_test", size, size, 0, NULL);
  	if (!cache)
  		return -ENOMEM;

  	printk("cache %p\n", cache);

  	obj = kmem_cache_alloc(cache, GFP_KERNEL);
  	if (obj) {
  		page = virt_to_head_page(obj);
  		printk("obj %p cache %p\n", obj, page->slab_cache);
  		kmem_cache_free(cache, obj);
  	}

  	flush_scheduled_work();

  	obj = kmem_cache_alloc(cache, GFP_KERNEL);
  	if (obj) {
  		page = virt_to_head_page(obj);
  		printk("obj %p cache %p\n", obj, page->slab_cache);
  		kmem_cache_free(cache, obj);
  	}

  	kmem_cache_destroy(cache);

  	return -EBUSY;
  }

  module_init(mod_init);
  MODULE_LICENSE("GPL");

Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Glauber Costa <glommer@parallels.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-08 15:05:34 -08:00
Randy Dunlap
755727b7fb Randy has moved
Update email address and CREDITS info.  xenotime.net is defunct.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Harry Wei <harryxiyou@gmail.com>
Cc: Keiichi KII <k-keiichi@bx.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-08 15:05:34 -08:00
Hugh Dickins
d8fc16a825 ksm: fix m68k build: only NUMA needs pfn_to_nid
A CONFIG_DISCONTIGMEM=y m68k config gave

  mm/ksm.c: In function `get_kpfn_nid':
  mm/ksm.c:492: error: implicit declaration of function `pfn_to_nid'

linux/mmzone.h declares it for CONFIG_SPARSEMEM and CONFIG_FLATMEM, but
expects the arch's asm/mmzone.h to declare it for CONFIG_DISCONTIGMEM
(see arch/mips/include/asm/mmzone.h for example).

Or perhaps it is only expected when CONFIG_NUMA=y: too much of a maze,
and m68k got away without it so far, so fix the build in mm/ksm.c.

Signed-off-by: Hugh Dickins <hughd@google.com>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Petr Holasek <pholasek@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-08 15:05:34 -08:00
Ben Hutchings
a40e7cf8f0 dmi_scan: fix missing check for _DMI_ signature in smbios_present()
Commit 9f9c9cbb60 ("drivers/firmware/dmi_scan.c: fetch dmi version
from SMBIOS if it exists") hoisted the check for "_DMI_" into
dmi_scan_machine(), which means that we don't bother to check for
"_DMI_" at offset 16 in an SMBIOS entry.  smbios_present() may also call
dmi_present() for an address where we found "_SM_", if it failed further
validation.

Check for "_DMI_" in smbios_present() before calling dmi_present().

[akpm@linux-foundation.org: fix build]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Reported-by: Tim McGrath <tmhikaru@gmail.com>
Tested-by: Tim Mcgrath <tmhikaru@gmail.com>
Cc: Zhenzhong Duan <zhenzhong.duan@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-08 15:05:34 -08:00
Arnd Bergmann
dc893e19b5 Revert parts of "hlist: drop the node parameter from iterators"
Commit b67bfe0d42 ("hlist: drop the node parameter from iterators")
did a lot of nice changes but also contains two small hunks that seem to
have slipped in accidentally and have no apparent connection to the
intent of the patch.

This reverts the two extraneous changes.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Peter Senna Tschudin <peter.senna@gmail.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Sasha Levin <sasha.levin@oracle.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-08 15:05:34 -08:00
Tejun Heo
2e1c9b2867 idr: remove WARN_ON_ONCE() on negative IDs
idr_find(), idr_remove() and idr_replace() used to silently ignore the
sign bit and perform lookup with the rest of the bits.  The weird behavior
has been changed such that negative IDs are treated as invalid.  As the
behavior change was subtle, WARN_ON_ONCE() was added in the hope of
determining who's calling idr functions with negative IDs so that they can
be examined for problems.

Up until now, all two reported cases are ID number coming directly from
userland and getting fed into idr_find() and the warnings seem to cause
more problems than being helpful.  Drop the WARN_ON_ONCE()s.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: <markus@trippelsdorf.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-08 15:05:34 -08:00
KOSAKI Motohiro
7880639c3e mm/mempolicy.c: fix sp_node_init() argument ordering
Currently, n_new is wrongly initialized.  start and end parameter are
inverted.  Let's fix it.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Hillf Danton <dhillf@gmail.com>
Cc: Sasha Levin <sasha.levin@oracle.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Dave Jones <davej@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-08 15:05:34 -08:00
Hillf Danton
5ca3957510 mm/mempolicy.c: fix wrong sp_node insertion
n->end is accessed in sp_insert(). Thus it should be update
before calling sp_insert(). This mistake may make kernel panic.

Signed-off-by: Hillf Danton <dhillf@gmail.com>
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Sasha Levin <sasha.levin@oracle.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Dave Jones <davej@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-08 15:05:34 -08:00
Peter Hurley
88b9e456b1 ipc: don't allocate a copy larger than max
When MSG_COPY is set, a duplicate message must be allocated for the copy
before locking the queue.  However, the copy could not be larger than was
sent which is limited to msg_ctlmax.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Acked-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-08 15:05:33 -08:00
Peter Hurley
e1082f45f1 ipc: fix potential oops when src msg > 4k w/ MSG_COPY
If the src msg is > 4k, then dest->next points to the
next allocated segment; resetting it just prior to dereferencing
is bad.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Acked-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-08 15:05:33 -08:00
Linus Torvalds
c4c5ff0987 Merge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Pull tile architecture fixes from Chris Metcalf:
 "This fixes the bug that Al Viro spotted with the compat llseek code.
  I also fixed the compat syscall definitions to use the new syscall
  define macros to properly sign-extend their arguments."

* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  tile: properly use COMPAT_SYSCALL_DEFINEx
  tile: work around bug in the generic sys_llseek
2013-03-08 14:46:04 -08:00
Linus Torvalds
92e840b84e A couple of fairly minor arch/metag integration fixes from v3.9-rc1:
- remove SET_PERSONALITY(): use default definition like other arches
    now do.
 
  - inhibit NUMA balancing: like SH, NUMA is used for memories with
    different latencies. ARCH_WANT_VARIABLE_LOCALITY has been added for
    this purpose.
 
 Signed-off-by: James Hogan <james.hogan@imgtec.com>
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Merge tag 'metag-for-v3.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag

Pull metag bugfixes from James Hogan:
 "A couple of fairly minor arch/metag integration fixes from v3.9-rc1:

   - remove SET_PERSONALITY(): use default definition like other arches
     now do.

   - inhibit NUMA balancing: like SH, NUMA is used for memories with
     different latencies.  ARCH_WANT_VARIABLE_LOCALITY has been added
     for this purpose."

* tag 'metag-for-v3.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag:
  metag: Inhibit NUMA balancing.
  metag: remove SET_PERSONALITY()
2013-03-08 14:45:17 -08:00
Linus Torvalds
eca968305c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
 "All are boring small fixes in various parts:
   - A few possible NULL-dereference or zero-division Oops fixes
   - Fix vmaster slave volume notification
   - Add codec ID for ALC233
   - Various fixes in several ASoC WM codecs
   - ASoC tegra i2c fix

  Sorry if you wanted a thrilling adventure with huge sharks :)"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: ice1712: Initialize card->private_data properly
  ALSA: hda - Add support of new codec ALC233
  ALSA: hda/ca0132 - Avoid division by zero in dspxfr_one_seg()
  ALSA: hda - check NULL pointer when creating SPDIF PCM switch
  ALSA: hda - check NULL pointer when creating SPDIF controls
  ASoC: wm5102: Apply a SYSCLK patch for later revs
  ALSA: vmaster: Fix slave change notification
  ASoC: tegra: fix I2S bit count mask
  ALSA: seq: seq_oss_event: missing range checks
  ASoC: wm8350: Use jiffies rather than msecs in schedule_delayed_work()
  ASoC: wm5110: Correct OUT2/3 volume and switch names
  ASoC: wm5102: Correct OUT2 volume and switch names
  ASoC: wm8960: Fix ADC power bits
  ASoC: wm8960: Correct register 0 and 1 defaults
2013-03-08 14:43:33 -08:00
Linus Torvalds
d381f45c89 Merge branch 'for-3.9/upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Pull HID fix from Jiri Kosina:
 "Bugfix for a long-standing bug in logitech-dj driver causing all sorts
  of random initialization problems, finally debugged by Benjamin
  Tissoires with help of Bob Bowles."

* 'for-3.9/upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: logitech-dj: do not directly call hid_output_raw_report() during probe
2013-03-08 14:42:52 -08:00
Linus Torvalds
c77f8bf918 Fix a circular locking dependency in random's collection of cputime
used by a thread when it exits.
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Merge tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random

Pull random fixes from Ted Ts'o:
 "Fix a circular locking dependency in random's collection of cputime
  used by a thread when it exits."

* tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random:
  random: fix locking dependency with the tasklist_lock
2013-03-08 14:42:16 -08:00
Thomas Petazzoni
b2d57222b0 arm: mach-orion5x: fix typo in compatible string of a .dts file
The orion5x-lacie-ethernet-disk-mini-v2.dts file was using
"marvell-orion5x-88f5182" as a compatible string, while it should have
been "marvell,orion5x-88f5182".

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-03-08 22:19:42 +00:00
Thomas Petazzoni
1b72b78fda arm: mvebu: fix address-cells in mpic DT node
There is no need to have a #address-cells property in the MPIC Device
Tree node, and more than that, having it confuses the of_irq_map_raw()
logic, which will be used by the Marvell PCIe driver.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-03-08 22:15:54 +00:00
Thomas Petazzoni
217bef3d37 arm: plat-orion: fix address decoding when > 4GB is used
During the system initialization, the orion_setup_cpu_mbus_target()
function reads the SDRAM address decoding registers to find out how
many chip-selects of SDRAM have been enabled, and builds a small array
with one entry per chip-select. This array is then used by device
drivers (XOR, Ethernet, etc.) to configure their own address decoding
windows to the SDRAM.

However, devices can only access the first 32 bits of the physical
memory. Even though LPAE is not supported for now, some Marvell boards
are now showing up with 8 GB of RAM, configured using two SDRAM
address decoding windows: the first covering the first 4 GB, the
second covering the last 4 GB. The array built by
orion_setup_cpu_mbus_target() has therefore two entries, and device
drivers try to set up two address decoding windows to the
SDRAM. However, in the device registers for the address decoding, the
base address is only 32 bits, so those two windows overlap each other,
and the devices do not work at all.

This patch makes sure that the array built by
orion_setup_cpu_mbus_target() only contains the SDRAM decoding windows
that correspond to the first 4 GB of the memory. To do that, it
ignores the SDRAM decoding windows for which the 4 low-order bits are
not zero (the 4 low-order bits of the base register are used to store
bits 32:35 of the base address, so they actually indicate whether the
base address is above 4 GB).

This patch allows the newly introduced armada-xp-gp board to properly
operate when it is mounted with more than 4 GB of RAM. Without that,
all devices doing DMA (for example XOR and Ethernet) do not work at
all.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-03-08 22:07:19 +00:00
Heikki Krogerus
e366154f70 arm: mvebu: Reduce reg-io-width with UARTs
Setting the reg-io-width to 1 byte represents more accurate
description of the HW.

This will fix an issue where UART driver causes kernel
panic during bootup. Gregory CLEMENT traced the issue to
autoconfig() in 8250.c, where the existence of FIFO is
checked from UART_IIR register. The register is now read as
32-bit value as the reg-io-width is set to 4-bytes. The
retuned value seems to contain bogus data for bits 31:8,
causing the issue.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Tested-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-03-08 22:03:44 +00:00
Jean-Francois Moine
85c0c13dcd ARM: Dove: add RTC device node
The commit:

  48be9ac ARM: Dove: split legacy and DT setup

removed the RTC initialization.  This patch re-enables the RTC
via the DT.

Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-03-08 21:53:33 +00:00
Florian Fainelli
e822f75d84 arm: mvebu: enable the USB ports on Armada 370 Reference Design board
This patch modifies the Armada 370 Reference Design DTS file to enable
support for the two USB ports found on this board.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-03-08 21:44:30 +00:00
Paul Bolle
f3ae1ae901 ARM: dove: drop "select COMMON_CLK_DOVE"
Commit 5b03df9ace ("ARM: dove: switch to
DT clock providers") added "select COMMON_CLK_DOVE" to Marvell Dove's
Kconfig entry. But there's no Kconfig symbol COMMON_CLK_DOVE, which
makes this select statement a nop. It's probably a leftover of some
experimental code that never hit mainline. Drop it.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-03-08 21:34:49 +00:00
Andrew Lunn
89c58c198b rtc: rtc-mv: Add support for clk to avoid lockups
The Marvell RTC on Kirkwood makes use of the runit clock. Ensure the
driver clk_prepare_enable() this clock, otherwise there is a danger
the SoC will lockup when accessing RTC registers with the clock
disabled.

Reported-by: Simon Baatz <gmbnomis@gmail.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Simon Baatz <gmbnomis@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-03-08 21:34:41 +00:00
Andrew Lunn
de88747f51 gpio: mvebu: Add clk support to prevent lockup
The kirkwood SoC GPIO cores use the runit clock. Add code to
clk_prepare_enable() runit, otherwise there is a danger of locking up
the SoC by accessing the GPIO registers when runit clock is not
ticking.

Reported-by: Simon Baatz <gmbnomis@gmail.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Simon Baatz <gmbnomis@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-03-08 21:34:34 +00:00
Sebastian Hesselbarth
7bf5b408b4 ARM: kirkwood: fix to retain gbe MAC addresses for DT kernels
The ethernet controller used on kirkwood looses its MAC address
register contents when the corresponding clock is gated. As soon as
mv643xx_eth is built as module, the clock gets gated and when loading
the module, the MAC address is gone.

Proper DT support for the mv643xx_eth driver is expected soon, so we add
a workaround to always enable ge0/ge1 clocks on kirkwood. This workaround
is also already used on non-DT kirkwood kernels.

Reported-by: Simon Baatz <gmbnomis@gmail.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Simon Baatz <gmbnomis@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-03-08 21:34:16 +00:00
Jason Cooper
93fff4ce19 ARM: kirkwood: of_serial: fix clock gating by removing clock-frequency
When DT support for kirkwood was first introduced, there was no clock
infrastructure.  As a result, we had to manually pass the
clock-frequency to the driver from the device node.

Unfortunately, on kirkwood, with minimal config or all module configs,
clock-frequency breaks booting because of_serial doesn't consume the
gate_clk when clock-frequency is defined.

The end result on kirkwood is that runit gets gated, and then the boot
fails when the kernel tries to write to the serial port.

Fix the issue by removing the clock-frequency parameter from all
kirkwood dts files.

Booted on dreamplug without earlyprintk and successfully logged in via
ttyS0.

Reported-by: Simon Baatz <gmbnomis@gmail.com>
Tested-by: Simon Baatz <gmbnomis@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-03-08 21:32:52 +00:00
Nithin Sujir
84421b99ce tg3: Update link_up flag for phylib devices
Commit f4a46d1f46 introduced a bug where
the ifconfig stats would remain 0 for phylib devices. This is due to
tp->link_up flag never becoming true causing tg3_periodic_fetch_stats()
to return.

The link_up flag was being updated in tg3_test_and_report_link_chg()
after setting up the phy. This function however, is not called for
phylib devices since the driver does not do the phy setup.

This patch moves the link_up flag update into the common
tg3_link_report() function that gets called for phylib devices as well
for non phylib devices when the link state changes.

To avoid updating link_up twice, we replace tg3_carrier_...() calls that
are followed by tg3_link_report(), with netif_carrier_...(). We can then
remove the unused tg3_carrier_on() function.

CC: <stable@vger.kernel.org>
Reported-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-08 13:14:58 -05:00
Hannes Frederic Sowa
ddf64354af ipv6: stop multicast forwarding to process interface scoped addresses
v2:
a) used struct ipv6_addr_props

v3:
a) reverted changes for ipv6_addr_props

v4:
a) do not use __ipv6_addr_needs_scope_id

Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-08 12:28:20 -05:00
Cristian Bercaru
3bc1b1add7 bridging: fix rx_handlers return code
The frames for which rx_handlers return RX_HANDLER_CONSUMED are no longer
counted as dropped. They are counted as successfully received by
'netif_receive_skb'.

This allows network interface drivers to correctly update their RX-OK and
RX-DRP counters based on the result of 'netif_receive_skb'.

Signed-off-by: Cristian Bercaru <B43982@freescale.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-08 12:19:59 -05:00
Linus Torvalds
7b54c165a0 vfs: don't BUG_ON() if following a /proc fd pseudo-symlink results in a symlink
It's "normal" - it can happen if the file descriptor you followed was
opened with O_NOFOLLOW.

Reported-by: Dave Jones <davej@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-08 09:03:07 -08:00
Paul Moore
a6a8fe950e netlabel: fix build problems when CONFIG_IPV6=n
My last patch to solve a problem where the static/fallback labels were
not fully displayed resulted in build problems when IPv6 was disabled.
This patch resolves the IPv6 build problems; sorry for the screw-up.

Please queue for -stable or simply merge with the previous patch.

Reported-by: Kbuild Test Robot <fengguang.wu@intel.com>
Signed-off-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-08 11:33:51 -05:00
Hiraku Toyooka
1abccd7419 tracing: update documentation of snapshot utility
Now, "snapshot" file returns success on a reset of snapshot buffer
even if the buffer wasn't allocated, instead of returning EINVAL.
This patch updates snapshot desctiption according to the change.

Link: http://lkml.kernel.org/r/51399409.4090207@hitachi.com

Signed-off-by: Hiraku Toyooka <hiraku.toyooka.gu@hitachi.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2013-03-08 06:27:11 -05:00
Andrew Morton
c390b0363d usb: dwc3: ep0: fix sparc64 build
drivers/usb/dwc3/ep0.c: In function `__dwc3_ep0_do_control_data':
drivers/usb/dwc3/ep0.c:905: error: `typeof' applied to a bit-field

Looks like a gcc-3.4.5/sparc64 bug.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-08 09:42:50 +02:00
Chen Gang
f39479363e drivers/isdn: checkng length to be sure not memory overflow
sizeof (cmd.parm.cmsg.para) is 50 (MAX_CAPI_PARA_LEN).
  sizeof (cmd.parm) is 80+, but less than 100.
  strlen(msg) may be more than 80+ (Modem-Commandbuffer, less than 255).
    isdn_tty_send_msg is called by isdn_tty_parse_at
    the relative parameter is m->mdmcmd (atemu *m)
    the relative command may be "+M..."

  so need check the length to be sure not memory overflow.
    cmd.parm is a union, and need keep original valid buffer length no touch

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-08 00:35:44 -05:00
Chen Gang
2e85d67690 net/rds: zero last byte for strncpy
for NUL terminated string, need be always sure '\0' in the end.

additional info:
  strncpy will pads with zeroes to the end of the given buffer.
  should initialise every bit of memory that is going to be copied to userland

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-08 00:35:44 -05:00
Yaniv Rosner
d916932330 bnx2x: Fix SFP+ misconfiguration in iSCSI boot scenario
Fix a problem in which iSCSI-boot installation fails when switching SFP+ boot
port and moving the SFP+ module prior to boot. The SFP+ insertion triggers an
interrupt which configures the SFP+ module wrongly before interface is loaded.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-08 00:35:44 -05:00
Yaniv Rosner
5f3347e6e7 bnx2x: Fix intermittent long KR2 link up time
When a KR2 device is connected to a KR link-partner, sometimes it requires
disabling KR2 for the link to come up. To get a KR2 link up later, in case no
base pages are seen, the KR2 is restored. The problem was that some link
partners cleared their advertised BP/NP after around two seconds, causing the
driver to disable/enable KR2 link all the time.
The fix was to wait at least 5 seconds before checking KR2 recovery.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-08 00:35:44 -05:00
Amit Shah
e84e7a56a3 virtio: rng: disallow multiple device registrations, fixes crashes
The code currently only supports one virtio-rng device at a time.
Invoking guests with multiple devices causes the guest to blow up.

Check if we've already registered and initialised the driver.  Also
cleanup in case of registration errors or hot-unplug so that a new
device can be used.

Reported-by: Peter Krempa <pkrempa@redhat.com>
Reported-by: <yunzheng@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: stable@kernel.org
2013-03-08 11:30:43 +11:00
Linus Torvalds
47b3bc9073 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Peter Anvin:
 "Several boot fixes (MacBook, legacy EFI bootloaders), another
  please-don't-brick fix, and some minor stuff."

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: Do not try to sync identity map for non-mapped pages
  x86, doc: Be explicit about what the x86 struct boot_params requires
  x86: Don't clear efi_info even if the sentinel hits
  x86, mm: Make sure to find a 2M free block for the first mapped area
  x86: Fix 32-bit *_cpu_data initializers
  efivarfs: return accurate error code in efivarfs_fill_super()
  efivars: efivarfs_valid_name() should handle pstore syntax
  efi: be more paranoid about available space when creating variables
  iommu, x86: Add DMA remap fault reason
  x86, smpboot: Remove unused variable
2013-03-07 15:57:38 -08:00
Linus Torvalds
af2841cdd4 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
 "Misc radeon, nouveau, mgag200 and intel fixes.

  The intel fixes should contain the fix for the touchpad on the
  Chromebook - hey I'm an input maintainer now!"

Hate to pee on your parade, Dave, but I don't think being an input
maintainer is necessarily something to strive for..

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (25 commits)
  drm/tegra: drop "select DRM_HDMI"
  drm: Documentation typo fixes
  drm/mgag200: Bug fix: Renesas board now selects native resolution.
  drm/mgag200: Reject modes that are too big for VRAM
  drm/mgag200: 'fbdev_list' in 'struct mga_fbdev' is not used
  drm/radeon: don't check mipmap alignment if MIP_ADDRESS is FMASK
  drm/radeon: skip MC reset as it's probably not hung
  drm/radeon: add primary dac adj quirk for R200 board
  drm/radeon: don't set hpd, afmt interrupts when interrupts are disabled
  drm/i915: Turn off hsync and vsync on ADPA when disabling crt
  drm/i915: Fix incorrect definition of ADPA HSYNC and VSYNC bits
  drm/i915: also disable south interrupts when handling them
  drm/i915: enable irqs earlier when resuming
  drm/i915: Increase the RC6p threshold.
  DRM/i915: On G45 enable cursor plane briefly after enabling the display plane.
  drm/nv50-: prevent some races between modesetting and page flipping
  drm/nouveau/i2c: drop parent refcount when creating ports
  drm/nv84: fix regression in page flipping
  drm/nouveau: Fix typo in init_idx_addr_latched().
  drm/nouveau: Disable AGP on PowerPC again.
  ...
2013-03-07 14:55:54 -08:00
Linus Torvalds
c89b148fd3 ACPI and power management fixes for 3.9-rc2
- Two fixes for the new intel_pstate driver from Dirk Brandewie.
 
 - Fix for incorrect usage of the .find_bridge() callback from struct
   acpi_bus_type in the USB core and subsequent removal of that
   callback from Rafael J. Wysocki.
 
 - ACPI processor driver cleanups from Chen Gang and Syam Sidhardhan.
 
 - ACPI initialization and error messages fix from Joe Perches.
 
 - Operating Performance Points documentation improvement from
   Nishanth Menon.
 
 - Fixes for memory leaks and potential concurrency issues and sysfs
   attributes leaks during device removal in the core device PM QoS
   code from Rafael J. Wysocki.
 
 - Calxeda Highbank cpufreq driver simplification from Emilio López.
 
 - cpufreq comment cleanup from Namhyung Kim.
 
 - Fix for a section mismatch in Calxeda Highbank interprocessor
   communication code from Mark Langsdorf (this is not a PM fix
   strictly speaking, but the code in question went in through the
   PM tree).
 
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Merge tag 'pm+acpi-3.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI and power management fixes from Rafael J Wysocki:

 - Two fixes for the new intel_pstate driver from Dirk Brandewie.

 - Fix for incorrect usage of the .find_bridge() callback from struct
   acpi_bus_type in the USB core and subsequent removal of that callback
   from Rafael J Wysocki.

 - ACPI processor driver cleanups from Chen Gang and Syam Sidhardhan.

 - ACPI initialization and error messages fix from Joe Perches.

 - Operating Performance Points documentation improvement from Nishanth
   Menon.

 - Fixes for memory leaks and potential concurrency issues and sysfs
  attributes leaks during device removal in the core device PM QoS code
  from Rafael J Wysocki.

 - Calxeda Highbank cpufreq driver simplification from Emilio López.

 - cpufreq comment cleanup from Namhyung Kim.

 - Fix for a section mismatch in Calxeda Highbank interprocessor
   communication code from Mark Langsdorf (this is not a PM fix strictly
   speaking, but the code in question went in through the PM tree).

* tag 'pm+acpi-3.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq / intel_pstate: Do not load on VM that does not report max P state.
  cpufreq / intel_pstate: Fix intel_pstate_init() error path
  ACPI / glue: Drop .find_bridge() callback from struct acpi_bus_type
  ACPI / glue: Add .match() callback to struct acpi_bus_type
  ACPI / porocessor: Beautify code, pr->id is u32 which is never < 0
  ACPI / processor: Remove redundant NULL check before kfree
  ACPI / Sleep: Avoid interleaved message on errors
  PM / QoS: Remove device PM QoS sysfs attributes at the right place
  PM / QoS: Fix concurrency issues and memory leaks in device PM QoS
  cpufreq: highbank: do not initialize array with a loop
  PM / OPP: improve introductory documentation
  cpufreq: Fix a typo in comment
  mailbox, pl320-ipc: remove __init from probe function
2013-03-07 14:54:28 -08:00
Paul Bolle
36c1813bb4 drm/tegra: drop "select DRM_HDMI"
Commit ac24c2204a ("drm/tegra: Use generic
HDMI infoframe helpers") added "select DRM_HDMI" to the DRM_TEGRA
Kconfig entry. But there is no Kconfig symbol named DRM_HDMI. The select
statement for that symbol is a nop. Drop it.

What was needed to use HDMI functionality was to select HDMI (which this
entry already did through depending on DRM) and to include linux/hdmi.h
(which this commit also did).

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-03-08 08:36:01 +10:00
Christopher Harvey
13bcf01b33 drm: Documentation typo fixes
Signed-off-by: Christopher Harvey <charvey@matrox.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-03-08 08:32:23 +10:00
Julia Lemire
ce495960ff drm/mgag200: Bug fix: Renesas board now selects native resolution.
Renesas boards were consistently defaulting to the 1024x768 resolution,
regardless of the native resolution of the monitor plugged in.  It was
determined that the EDID of the monitor was not being read.  Since the
DAC is a shared line, in order to read from or write to it we must take
control of the DAC clock.  This can be done by setting the proper
register to one.

This bug fix sets the register MGA1064_GEN_IO_CTL2 to one.  The DAC
control line can be used to determine whether or not a new monitor has
been plugged in.  But since the hotplug feature is not one we will
support, it has been decided to simply leave the register set to one.

Signed-off-by: Julia Lemire <jlemire@matrox.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-03-08 08:31:49 +10:00
Christopher Harvey
0ba5317158 drm/mgag200: Reject modes that are too big for VRAM
A monitor or a user could request a resolution greater than the
available VRAM for the backing framebuffer. This change checks the
required framebuffer size against the max VRAM size and rejects modes
if they are too big. This change can also remove a mode request passed
in via the video= parameter.

Signed-off-by: Christopher Harvey <charvey@matrox.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-03-08 08:31:31 +10:00
Christopher Harvey
cc59487a05 drm/mgag200: 'fbdev_list' in 'struct mga_fbdev' is not used
Signed-off-by: Christopher Harvey <charvey@matrox.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-03-08 08:30:54 +10:00
Dave Airlie
9d6245263c Merge branch 'drm-fixes-3.9' of git://people.freedesktop.org/~agd5f/linux into drm-next
Alex writes:
  Radeon fixes pull.  Not much to it.
  - fix some splatter if the interrupt handler isn't registered
  - Add a quirk for an old R200 board to fix washed out colors on the DAC
  - Don't try and soft reset the MC when we reset the GPU.  It usually doesn't
    need it and doesn't always work reliably.
  - A CS checker fix from Marek

* 'drm-fixes-3.9' of git://people.freedesktop.org/~agd5f/linux:
  drm/radeon: don't check mipmap alignment if MIP_ADDRESS is FMASK
  drm/radeon: skip MC reset as it's probably not hung
  drm/radeon: add primary dac adj quirk for R200 board
  drm/radeon: don't set hpd, afmt interrupts when interrupts are disabled
2013-03-08 08:28:22 +10:00
Linus Torvalds
19cf3edbf3 Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM fixes from Russell King:
 "Mainly a group of fixes, the only exception is the wiring up of the
  kcmp syscall now that those patches went in during the last merge
  window."

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: 7668/1: fix memset-related crashes caused by recent GCC (4.7.2) optimizations
  ARM: 7667/1: perf: Fix section mismatch on armpmu_init()
  ARM: 7666/1: decompressor: add -mno-single-pic-base for building the decompressor
  ARM: 7665/1: Wire up kcmp syscall
  ARM: 7664/1: perf: remove erroneous semicolon from event initialisation
  ARM: 7663/1: perf: fix ARMv7 EVTYPE_MASK to include NSH bit
  ARM: 7662/1: hw_breakpoint: reset debug logic on secondary CPUs in s2ram resume
  ARM: 7661/1: mm: perform explicit branch predictor maintenance when required
  ARM: 7660/1: tlb: add branch predictor maintenance operations
  ARM: 7659/1: mm: make mm->context.id an atomic64_t variable
  ARM: 7658/1: mm: fix race updating mm->context.id on ASID rollover
  ARM: 7657/1: head: fix swapper and idmap population with LPAE and big-endian
  ARM: 7655/1: smp_twd: make twd_local_timer_of_register() no-op for nosmp
  ARM: 7652/1: mm: fix missing use of 'asid' to get asid value from mm->context.id
  ARM: 7642/1: netx: bump IRQ offset to 64
2013-03-07 13:47:18 -08:00
Vlad Yasevich
87ab7f6f28 macvlan: Set IFF_UNICAST_FLT flag to prevent unnecessary promisc mode.
Macvlan already supports hw address filters.  Set the IFF_UNICAST_FLT
so that it doesn't needlesly enter PROMISC mode when macvlans are
stacked.

Signed-of-by: Vlad Yasevich <vyasevic@redhat.com>

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-07 16:36:59 -05:00