deliverable/linux.git
12 years agostmmac: parameters auto-tuning through HW cap reg
Giuseppe CAVALLARO [Wed, 16 Nov 2011 21:58:00 +0000 (21:58 +0000)] 
stmmac: parameters auto-tuning through HW cap reg

New GMAC devices (newer than the databook 3.50a) have the
HW capability register that provides which features are actually
supported by the hardware.

On old devices many information have to be passed through the
platform, for example: enhanced descriptor structure,
TX COE etc. These are mandatory to properly configure the driver.
This remains still valid because the driver has to support old
Synopsys devices but now it's also able to override them using the
values from the HW capability register if supported.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agostmmac: fix advertising 1000Base capabilties for non GMII iface
Srinivas Kandagatla [Wed, 16 Nov 2011 21:57:59 +0000 (21:57 +0000)] 
stmmac: fix advertising 1000Base capabilties for non GMII iface

This patch fixes the way to stop the 1000Base advertising
capabilties for non GMII interfaces.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agostmmac: use mdelay on timeout of sw reset
Francesco Virlinzi [Wed, 16 Nov 2011 21:57:58 +0000 (21:57 +0000)] 
stmmac: use mdelay on timeout of sw reset

This patch uses an mdelay to manage the timeout on
sw reset to be independant of cpu_clk.

Signed-off-by: Francesco Virlinzi <francesco.virlinzi@st.com>
Reviewed-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agopowerpc/signal32: Fix sigset_t conversion when copying to user
Will Deacon [Tue, 8 Nov 2011 04:51:19 +0000 (04:51 +0000)] 
powerpc/signal32: Fix sigset_t conversion when copying to user

On PPC64, put_sigset_t converts a sigset_t to a compat_sigset_t
before copying it to userspace. There is a typo in the case that
we have 4 words to copy, meaning that we corrupt the compat_sigset_t.

It appears that _NSIG_WORDS can't be greater than 2 at the moment
so this code is probably always optimised away anyway.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
12 years agopowerpc: Fix atomic_xxx_return barrier semantics
Benjamin Herrenschmidt [Tue, 15 Nov 2011 17:11:27 +0000 (17:11 +0000)] 
powerpc: Fix atomic_xxx_return barrier semantics

The Documentation/memory-barriers.txt document requires that atomic
operations that return a value act as a memory barrier both before
and after the actual atomic operation.

Our current implementation doesn't guarantee this. More specifically,
while a load following the isync can not be issued before stwcx. has
completed, that completion doesn't architecturally means that the
result of stwcx. is visible to other processors (or any previous stores
for that matter) (typically, the other processors L1 caches can still
hold the old value).

This has caused an actual crash in RCU torture testing on Power 7

This fixes it by changing those atomic ops to use new macros instead
of RELEASE/ACQUIRE barriers, called ATOMIC_ENTRY and ATMOIC_EXIT barriers,
which are then defined respectively to lwsync and sync.

I haven't had a chance to measure the performance impact (or rather
what I measured with kernel compiles is in the noise, I yet have to
find a more precise benchmark)

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
12 years agopowerpc: Remove buggy 9-year-old test for binutils < 2.12.1
Kyle Moffett [Mon, 7 Nov 2011 13:30:43 +0000 (13:30 +0000)] 
powerpc: Remove buggy 9-year-old test for binutils < 2.12.1

Recent binutils refuses to assemble AltiVec opcodes when in e500/SPE
mode, as some of those opcodes alias the "SPE" instructions.  This
triggers an ancient binutils version check even when building a kernel
with CONFIG_ALTIVEC disabled.

In theory, the check could be conditionalized on CONFIG_ALTIVEC, but in
practice it has long outlived its utility.  It is virtually impossible
to find binutils older than 2.12.1 (released 2002) in the wild anymore.
Even ancient RedHat Enterprise Linux 4 has binutils-2.14.

To fix the kernel build when done natively on e500 systems with this new
binutils, the test is simply removed.

Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
12 years agopowerpc/book3e-64: Fix debug support for userspace
Kumar Gala [Thu, 6 Oct 2011 02:53:40 +0000 (02:53 +0000)] 
powerpc/book3e-64: Fix debug support for userspace

With the introduction of CONFIG_PPC_ADV_DEBUG_REGS user space debug is
broken on Book-E 64-bit parts that support delayed debug events.  When
switch_booke_debug_regs() sets DBCR0 we'll start getting debug events as
MSR_DE is also set and we aren't able to handle debug events from kernel
space.

We can remove the hack that always enables MSR_DE and loads up DBCR0 and
just utilize switch_booke_debug_regs() to get user space debug working
again.

We still need to handle critical/debug exception stacks & proper
save/restore of state for those exception levles to support debug events
from kernel space like we have on 32-bit.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
12 years agopowerpc: Remove extraneous CONFIG_PPC_ADV_DEBUG_REGS define
Kumar Gala [Thu, 6 Oct 2011 02:53:39 +0000 (02:53 +0000)] 
powerpc: Remove extraneous CONFIG_PPC_ADV_DEBUG_REGS define

All of DebugException is already protected by CONFIG_PPC_ADV_DEBUG_REGS
there is no need to have another such ifdef inside the function.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
12 years agopowerpc: Revert show_regs() define for readability
Kumar Gala [Thu, 6 Oct 2011 02:53:38 +0000 (02:53 +0000)] 
powerpc: Revert show_regs() define for readability

We had an existing ifdef for 4xx & BOOKE processors that got changed to
CONFIG_PPC_ADV_DEBUG_REGS.  The define has nothing to do with
CONFIG_PPC_ADV_DEBUG_REGS.  The define really should be:

 #if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)

and not

 #ifdef CONFIG_PPC_ADV_DEBUG_REGS

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
12 years agoforcedeth: stats updated with a deferrable timer
david decotigny [Wed, 16 Nov 2011 12:15:15 +0000 (12:15 +0000)] 
forcedeth: stats updated with a deferrable timer

Mark stats timer as deferrable: punctuality in waking the stats timer
callback doesn't matter much, as it is responsible only to avoid
integer wraparound.

We need at least 1 other timer to fire within 17s (fully loaded 1Gbps)
to avoid wrap-arounds. Desired period is still 10s.

Signed-off-by: David Decotigny <david.decotigny@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoforcedeth: account for dropped RX frames
david decotigny [Wed, 16 Nov 2011 12:15:14 +0000 (12:15 +0000)] 
forcedeth: account for dropped RX frames

This adds code to update the stats counter for dropped RX frames.

Signed-off-by: David Decotigny <david.decotigny@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoforcedeth: implement ndo_get_stats64() API
david decotigny [Wed, 16 Nov 2011 12:15:13 +0000 (12:15 +0000)] 
forcedeth: implement ndo_get_stats64() API

This commit implements the ndo_get_stats64() API for forcedeth. Since
hardware stats are being updated from different contexts (process and
timer), this commit adds synchronization. For software stats, it
relies on the u64_stats_sync.h API.

Tested:
  - 16-way SMP x86_64 ->
    RX bytes:7244556582 (7.2 GB)  TX bytes:181904254 (181.9 MB)
  - pktgen + loopback: identical rx_bytes/tx_bytes and rx_packets/tx_packets

Signed-off-by: David Decotigny <david.decotigny@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoforcedeth: allow to silence "TX timeout" debug messages
Sameer Nanda [Wed, 16 Nov 2011 12:15:12 +0000 (12:15 +0000)] 
forcedeth: allow to silence "TX timeout" debug messages

This adds a new module parameter "debug_tx_timeout" to silence most
debug messages in case of TX timeout. These messages don't provide a
signal/noise ratio high enough for production systems and, with ~30kB
logged each time, they tend to add to a cascade effect if the system
is already under stress (memory pressure, disk, etc.).

By default, the parameter is clear, meaning that only a single warning
will be reported.

Signed-off-by: David Decotigny <david.decotigny@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoforcedeth: Add messages to indicate using MSI or MSI-X
Mike Ditto [Wed, 16 Nov 2011 12:15:11 +0000 (12:15 +0000)] 
forcedeth: Add messages to indicate using MSI or MSI-X

This adds a few kernel messages to indicate whether PCIe interrupts
are signaled with MSI or MSI-X.

Signed-off-by: David Decotigny <david.decotigny@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet: new counter for tx_timeout errors in sysfs
david decotigny [Wed, 16 Nov 2011 12:15:10 +0000 (12:15 +0000)] 
net: new counter for tx_timeout errors in sysfs

This adds the /sys/class/net/DEV/queues/Q/tx_timeout attribute
containing the total number of timeout events on the given queue. It
is always available with CONFIG_SYSFS, independently of
CONFIG_RPS/XPS.

Credits to Stephen Hemminger for a preliminary version of this patch.

Tested:
  without CONFIG_SYSFS (compilation only)
  with sysfs and without CONFIG_RPS & CONFIG_XPS
  with sysfs and without CONFIG_RPS
  with sysfs and without CONFIG_XPS
  with defaults

Signed-off-by: David Decotigny <david.decotigny@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet-sysfs: fixed minor sparse warning
david decotigny [Wed, 16 Nov 2011 12:15:08 +0000 (12:15 +0000)] 
net-sysfs: fixed minor sparse warning

This commit fixes following warning:
net/core/net-sysfs.c:921:6: warning: symbol 'numa_node' shadows an earlier one
include/linux/topology.h:222:1: originally declared here

Signed-off-by: David Decotigny <david.decotigny@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoforcedeth: fix stats on hardware without extended stats support
david decotigny [Wed, 16 Nov 2011 12:15:07 +0000 (12:15 +0000)] 
forcedeth: fix stats on hardware without extended stats support

This change makes sure that tx_packets/rx_bytes ifconfig counters are
updated even on NICs that don't provide hardware support for these
stats: they are now updated in software. For the sake of consistency,
we also now have tx_bytes updated in software (hardware counters
include ethernet CRC, and software doesn't account for it).

This reverts parts of:
 - "forcedeth: statistics optimization" (21828163b2)
 - "forcedeth: Improve stats counters" (0bdfea8ba8)
 - "forcedeth: remove unneeded stats updates" (4687f3f364)

Tested:
  pktgen + loopback (http://patchwork.ozlabs.org/patch/124698/)
  reports identical tx_packets/rx_packets and tx_bytes/rx_bytes.

Signed-off-by: David Decotigny <david.decotigny@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 898bdf2cb43eb0a962c397eb4dd1aec2c7211be2)

12 years agonet: verify GSO flag bits against netdev features
Michał Mirosław [Wed, 16 Nov 2011 14:05:33 +0000 (14:05 +0000)] 
net: verify GSO flag bits against netdev features

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet: drivers: use bool type instead of double negation
Michał Mirosław [Wed, 16 Nov 2011 14:05:33 +0000 (14:05 +0000)] 
net: drivers: use bool type instead of double negation

Save some punctuation by using bool type's property equivalent to
doubled negation operator.

Reported-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonew helper: mount_subtree()
Al Viro [Thu, 17 Nov 2011 02:43:59 +0000 (21:43 -0500)] 
new helper: mount_subtree()

takes vfsmount and relative path, does lookup within that vfsmount
(possibly triggering automounts) and returns the result as root
of subtree suitable for return by ->mount() (i.e. a reference to
dentry and an active reference to its superblock grabbed, superblock
locked exclusive).

btrfs and nfs switched to it instead of open-coding the sucker.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agonet: ethtool: fix coding style
Michał Mirosław [Wed, 16 Nov 2011 14:32:03 +0000 (14:32 +0000)] 
net: ethtool: fix coding style

Add missing spaces around multiplication operator.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agosky2: version 1.30
stephen hemminger [Wed, 16 Nov 2011 13:43:00 +0000 (13:43 +0000)] 
sky2: version 1.30

Update version number.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agosky2: used fixed RSS key
stephen hemminger [Wed, 16 Nov 2011 13:42:59 +0000 (13:42 +0000)] 
sky2: used fixed RSS key

Rather than generating a different RSS key on each boot, just use
a predetermined value that will map same flow to same value on
every device.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agosky2: reduce default Tx ring size
stephen hemminger [Wed, 16 Nov 2011 13:42:58 +0000 (13:42 +0000)] 
sky2: reduce default Tx ring size

The default Tx ring size for the sky2 driver is quite large and could
cause excess buffer bloat for many users. The minimum ring size
possible and still allow handling  the worst case packet on 64bit platforms
is 38 which gets rounded up to a power of 2. But most packets only require
a couple of ring elements.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agosky2: rename up/down functions
stephen hemminger [Wed, 16 Nov 2011 13:42:57 +0000 (13:42 +0000)] 
sky2: rename up/down functions

The code is clearer if the up/down functions are renamed to
open/close like other drivers.  Purely syntax change.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agosky2: pci posting issues
stephen hemminger [Wed, 16 Nov 2011 13:42:56 +0000 (13:42 +0000)] 
sky2: pci posting issues

A couple of the reset and setup paths have possible PCI posting issues.
When setting registers, a read is necessary to force the writes to complete.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agosky2: fix hang on shutdown (and other irq issues)
stephen hemminger [Wed, 16 Nov 2011 13:42:55 +0000 (13:42 +0000)] 
sky2: fix hang on shutdown (and other irq issues)

There are several problems with recent change to how IRQ's are setup.
   * synchronize_irq in sky2_shutdown would hang because there
     was no IRQ setup.
   * when device was set to down, some IRQ bits left enabled so a
     hardware error would produce IRQ with no handler
   * quick link on Optima chip set was enabled without handler
   * suspend/resume would leave IRQ on with no handler if device
     was down

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agor6040: fix check against MCRO_HASHEN bit in r6040_multicast_list
Florian Fainelli [Wed, 16 Nov 2011 06:00:08 +0000 (06:00 +0000)] 
r6040: fix check against MCRO_HASHEN bit in r6040_multicast_list

We are checking whether the MCR0_HASHEN bit is set using a logical and
instead of bitwise and, fix that.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoucc_geth: Convert ENET_NUM_OCTETS_PER_ADDRESS uses to ETH_ALEN
Joe Perches [Wed, 16 Nov 2011 09:38:06 +0000 (09:38 +0000)] 
ucc_geth: Convert ENET_NUM_OCTETS_PER_ADDRESS uses to ETH_ALEN

Reduce the number of #defines, use the normal #define from if_ether.h

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoamd8111e: Convert ETH_ADDR_LEN uses to ETH_ALEN
Joe Perches [Wed, 16 Nov 2011 09:38:05 +0000 (09:38 +0000)] 
amd8111e: Convert ETH_ADDR_LEN uses to ETH_ALEN

Reduce the number of #defines, use the normal #define from if_ether.h

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobna: Convert MAC_ADDRLEN uses to ETH_ALEN
Joe Perches [Wed, 16 Nov 2011 09:38:04 +0000 (09:38 +0000)] 
bna: Convert MAC_ADDRLEN uses to ETH_ALEN

Reduce the number of #defines, use the normal #define from if_ether.h

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoethernet: Convert ETHER_ADDR_LEN uses to ETH_ALEN
Joe Perches [Wed, 16 Nov 2011 09:38:03 +0000 (09:38 +0000)] 
ethernet: Convert ETHER_ADDR_LEN uses to ETH_ALEN

Reduce the number of #defines, use the normal #define from if_ether.h

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoethernet: Convert MAC_ADDR_LEN uses to ETH_ALEN
Joe Perches [Wed, 16 Nov 2011 09:38:02 +0000 (09:38 +0000)] 
ethernet: Convert MAC_ADDR_LEN uses to ETH_ALEN

Reduce the number of #defines, use the normal #define from if_ether.h

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agorandom: Fix handing of arch_get_random_long in get_random_bytes()
Luck, Tony [Wed, 16 Nov 2011 18:50:56 +0000 (10:50 -0800)] 
random: Fix handing of arch_get_random_long in get_random_bytes()

If there is an architecture-specific random number generator we use
it to acquire randomness one "long" at a time. We should put these
random words into consecutive words in the result buffer - not just
overwrite the first word again and again.

Signed-off-by: Tony Luck <tony.luck@intel.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/4ec4061010261a4cb0@agluck-desktop.sc.intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
12 years agonet: Add ethtool to mii advertisment conversion helpers
Matt Carlson [Wed, 16 Nov 2011 23:36:59 +0000 (18:36 -0500)] 
net: Add ethtool to mii advertisment conversion helpers

Translating between ethtool advertisement settings and MII
advertisements are common operations for ethernet drivers.  This patch
adds a set of helper functions that implements the conversion.  The
patch then modifies a couple of the drivers to use the new functions.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net...
David S. Miller [Wed, 16 Nov 2011 23:31:56 +0000 (18:31 -0500)] 
Merge branch 'master' of git://git./linux/kernel/git/jkirsher/net-next

12 years agoteam: replicate options on register
Jiri Pirko [Wed, 16 Nov 2011 11:09:09 +0000 (11:09 +0000)] 
team: replicate options on register

Since multiple team instances are putting defined options into their
option list, during register each option must be cloned before added
into list. This resolves uncool memory corruptions when using multiple
teams.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoteam: convert overall spinlock to mutex
Jiri Pirko [Wed, 16 Nov 2011 11:09:08 +0000 (11:09 +0000)] 
team: convert overall spinlock to mutex

No need to have spinlock for this purpose. So convert this to mutex and
avoid current schedule while atomic problems in netlink code.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoteam: Do not hold rcu_read_lock when running netlink cmds
Jiri Pirko [Wed, 16 Nov 2011 11:55:54 +0000 (11:55 +0000)] 
team: Do not hold rcu_read_lock when running netlink cmds

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years ago6LoWPAN: double free in lowpan_fragment_xmit()
Dan Carpenter [Tue, 15 Nov 2011 22:36:43 +0000 (22:36 +0000)] 
6LoWPAN: double free in lowpan_fragment_xmit()

dev_queue_xmit() consumes its own skb, so the call to dev_kfree_skb()
in lowpan_fragment_xmit() is a double free.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobe2net: Use V1 query link status command for lancer
Padmanabh Ratnakar [Wed, 16 Nov 2011 02:03:45 +0000 (02:03 +0000)] 
be2net: Use V1 query link status command for lancer

Use V1 version of query link status command for Lancer.

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobe2net: Fix VLAN promiscous mode for Lancer
Padmanabh Ratnakar [Wed, 16 Nov 2011 02:03:32 +0000 (02:03 +0000)] 
be2net: Fix VLAN promiscous mode for Lancer

To enable VLAN promiscous mode, the HW interface should be created
with VLAN promiscous capability in Lancer. Add this capability during
creation of the HW interface.

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobe2net: Add EEPROM dump feature for Lancer
Padmanabh Ratnakar [Wed, 16 Nov 2011 02:03:07 +0000 (02:03 +0000)] 
be2net: Add EEPROM dump feature for Lancer

Implemented eeprom dump using ethtool feature for Lancer.

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobe2net: add register dump feature for Lancer
Padmanabh Ratnakar [Wed, 16 Nov 2011 02:02:43 +0000 (02:02 +0000)] 
be2net: add register dump feature for Lancer

Implement register dump using ethtool for Lancer.

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobe2net: Fix TX queue create for Lancer
Padmanabh Ratnakar [Wed, 16 Nov 2011 02:02:23 +0000 (02:02 +0000)] 
be2net: Fix TX queue create for Lancer

Lancer uses V1 version of TXQ create. This command needs interface
id for TX queue creation. Rearrange code such that tx queue create
is after interface create. As TXQ create is now called after MCC
ring create use MCC instead of MBOX.

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoinfiniband: Update net drivers for netdev_features_t changes.
David S. Miller [Wed, 16 Nov 2011 23:05:50 +0000 (18:05 -0500)] 
infiniband: Update net drivers for netdev_features_t changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoMAINTAINERS: change email address for shemminger
Stephen Hemminger [Wed, 16 Nov 2011 22:58:46 +0000 (17:58 -0500)] 
MAINTAINERS: change email address for shemminger

My old email account at linux-foundation is no longer usable after
the LF breakin.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet: remove NETIF_F_NO_CSUM feature bit
Michał Mirosław [Tue, 15 Nov 2011 15:29:55 +0000 (15:29 +0000)] 
net: remove NETIF_F_NO_CSUM feature bit

Only distinct use is checking if NETIF_F_NOCACHE_COPY should be
enabled by default. The check heuristics is altered a bit here,
so it hits other people than before. The default shouldn't be
trusted for performance-critical cases anyway.

For all other uses NETIF_F_NO_CSUM is equivalent to NETIF_F_HW_CSUM.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet: extend netdev_features_t to 64 bits
Michał Mirosław [Tue, 15 Nov 2011 15:29:55 +0000 (15:29 +0000)] 
net: extend netdev_features_t to 64 bits

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoethtool: prepare for larger netdev_features_t type
Michał Mirosław [Tue, 15 Nov 2011 15:29:55 +0000 (15:29 +0000)] 
ethtool: prepare for larger netdev_features_t type

v2: changed loop in ethtool_set_features() per Ben's suggestion

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet: ethtool: use C99 array initialization for feature-names table
Michał Mirosław [Tue, 15 Nov 2011 15:29:55 +0000 (15:29 +0000)] 
net: ethtool: use C99 array initialization for feature-names table

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet: Define enum for net device features.
Michał Mirosław [Tue, 15 Nov 2011 15:29:55 +0000 (15:29 +0000)] 
net: Define enum for net device features.

Define feature values by bit position instead of direct 2**i values
and force the values to be of type netdev_features_t.

Cleaned and extended from patch by Mahesh Bandewar <maheshb@google.com>:
+ added netdev_features_t casts
+ included bits under NETIF_F_GSO_MASK
+ moved feature #defines out of struct net_device definition

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet: introduce and use netdev_features_t for device features sets
Michał Mirosław [Tue, 15 Nov 2011 15:29:55 +0000 (15:29 +0000)] 
net: introduce and use netdev_features_t for device features sets

v2: add couple missing conversions in drivers
split unexporting netdev_fix_features()
implemented %pNF
convert sock::sk_route_(no?)caps

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet: split netdev features to separate header
Michał Mirosław [Tue, 15 Nov 2011 15:29:55 +0000 (15:29 +0000)] 
net: split netdev features to separate header

Move features definitions to separate header so that linux/skbuff.h won't
need to include linux/netdevice.h after netdev_features_t is introduced.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet: ethtool: break association of ETH_FLAG_* with NETIF_F_*
Michał Mirosław [Tue, 15 Nov 2011 15:29:55 +0000 (15:29 +0000)] 
net: ethtool: break association of ETH_FLAG_* with NETIF_F_*

This is the only place left where dev->features are directly
exposed to userspace.

I know checkpatch.pl complains about __ethtool_{get,set}_flags(), but
the code is easier to read this way.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet: remove legacy ethtool ops
Michał Mirosław [Tue, 15 Nov 2011 15:29:55 +0000 (15:29 +0000)] 
net: remove legacy ethtool ops

As all drivers are converted, we may now remove discrete offload setting
callback handling.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet: sweep-up some straglers in strlcpy conversion of .get_drvinfo routines
Rick Jones [Tue, 15 Nov 2011 14:59:53 +0000 (14:59 +0000)] 
net: sweep-up some straglers in strlcpy conversion of .get_drvinfo routines

Convert some remaining straglers' .get_drvinfo routines to use strlcpy
rather than strcpy/strncpy.

Signed-off-by: Rick Jones <rick.jones2@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agopch_gbe: Move #include of module.h
Joe Perches [Tue, 15 Nov 2011 13:56:14 +0000 (13:56 +0000)] 
pch_gbe: Move #include of module.h

The first #include must be pch_gbe.h as it
does a #define of pr_fmt.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobnx2x: cache-in compressed fw image
Dmitry Kravkov [Tue, 15 Nov 2011 12:07:33 +0000 (12:07 +0000)] 
bnx2x: cache-in compressed fw image

Re-request fw from fs may fail for different reasons, once the fw was
loaded we won't release it until driver is removed.

This also resolves the boot problem when initial fw is located on initrd,
but rootfs is still unavailable, in this case device reset will fail due
to absence of fw files.

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet/cadence: enable by default NET_ATMEL
Jean-Christophe PLAGNIOL-VILLARD [Tue, 15 Nov 2011 09:36:30 +0000 (09:36 +0000)] 
net/cadence: enable by default NET_ATMEL

so the defconfig of the atmel continue to have the support of the network
as before

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobridge: correct IPv6 checksum after pull
stephen hemminger [Tue, 15 Nov 2011 08:09:14 +0000 (08:09 +0000)] 
bridge: correct IPv6 checksum after pull

Bridge multicast snooping of ICMPv6 would incorrectly report a checksum problem
when used with Ethernet devices like sky2 that use CHECKSUM_COMPLETE.
When bytes are removed from skb, the computed checksum needs to be adjusted.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Tested-by: Martin Volf <martin.volf.42@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet: use jump_label for netstamp_needed
Eric Dumazet [Tue, 15 Nov 2011 04:12:55 +0000 (04:12 +0000)] 
net: use jump_label for netstamp_needed

netstamp_needed seems a good candidate to jump_label conversion.

This avoids 3 conditional branches per incoming packet in fast path.

No measurable difference, given that these conditional branches are
predicted on modern cpus. Only a small icache reduction, thanks to the
unlikely() stuff.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoqeth: Reduce CPU consumption through less SIGA-r calls
Einar Lueck [Tue, 15 Nov 2011 02:31:16 +0000 (02:31 +0000)] 
qeth: Reduce CPU consumption through less SIGA-r calls

Patch avoids SIGA-r calls in case of SIGA-r required. It only calls
SIGA-r if a threshold of free buffer is reached. CPU consumption is
reduced as a consequence.

Signed-off-by: Einar Lueck <elelueck@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoqeth: l3 fix rcu splat in xmit
Frank Blaschka [Tue, 15 Nov 2011 02:31:15 +0000 (02:31 +0000)] 
qeth: l3 fix rcu splat in xmit

when use dst_get_neighbour to get neighbour, we need
rcu_read_lock to protect, since dst_get_neighbour uses
rcu_dereference.

Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonetiucv: reinsert dev_alloc_name for device naming
Ursula Braun [Tue, 15 Nov 2011 02:31:14 +0000 (02:31 +0000)] 
netiucv: reinsert dev_alloc_name for device naming

Invocation of dev_alloc_name() is re-inserted, because the created
net_device name is used to create the device name for the iucv bus.
This device is created before the register_netdev call.

Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoqeth: remove WARN_ON leftover
Christian Borntraeger [Tue, 15 Nov 2011 02:31:13 +0000 (02:31 +0000)] 
qeth: remove WARN_ON leftover

The patch "qeth: exploit asynchronous delivery of storage blocks"
added a WARN_ON in qeth_schedule_recovery. A device recovery should
not cause a kernel warning. This is obviously a debugging  left-over
that we forgot to remove.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoqeth: return with -EPERM if sniffing is not enabled
Ursula Braun [Tue, 15 Nov 2011 02:31:12 +0000 (02:31 +0000)] 
qeth: return with -EPERM if sniffing is not enabled

Without appropriate configuration at the SE, a HiperSockets device
cannot be used for sniffing. Setting the sniffer attribute is rejected
with -EPERM.

Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoenable virtio_net to return bus_info in ethtool -i consistent with emulated NICs
Rick Jones [Mon, 14 Nov 2011 14:17:08 +0000 (14:17 +0000)] 
enable virtio_net to return bus_info in ethtool -i consistent with emulated NICs

Add a new .bus_name to virtio_config_ops then modify virtio_net to
call through to it in an ethtool .get_drvinfo routine to report
bus_info in ethtool -i output which is consistent with other
emulated NICs and the output of lspci.

Signed-off-by: Rick Jones <rick.jones2@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agotcp: clear xmit timers in tcp_v4_syn_recv_sock()
Eric Dumazet [Mon, 14 Nov 2011 10:56:56 +0000 (10:56 +0000)] 
tcp: clear xmit timers in tcp_v4_syn_recv_sock()

Simon Kirby reported divides by zero errors in __tcp_select_window()

This happens when inet_csk_route_child_sock() returns a NULL pointer :

We free new socket while we eventually armed keepalive timer in
tcp_create_openreq_child()

Fix this by a call to tcp_clear_xmit_timers()

[ This is a followup to commit 918eb39962dff (net: add missing
bh_unlock_sock() calls) ]

Reported-by: Simon Kirby <sim@hostway.ca>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Tested-by: Simon Kirby <sim@hostway.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoswitch create_mnt_ns() to saner calling conventions, fix double mntput() in nfs
Al Viro [Wed, 16 Nov 2011 21:12:14 +0000 (16:12 -0500)] 
switch create_mnt_ns() to saner calling conventions, fix double mntput() in nfs

Life is much saner if create_mnt_ns(mnt) drops mnt in case of error...
Switch it to such calling conventions, switch callers, fix double mntput() in
fs/nfs/super.c one.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agobtrfs: fix double mntput() in mount_subvol()
Al Viro [Wed, 16 Nov 2011 21:06:09 +0000 (16:06 -0500)] 
btrfs: fix double mntput() in mount_subvol()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoencrypted-keys: module build fixes
Mimi Zohar [Sun, 16 Oct 2011 23:17:48 +0000 (19:17 -0400)] 
encrypted-keys: module build fixes

Encrypted keys are encrypted/decrypted using either a trusted or
user-defined key type, which is referred to as the 'master' key.
The master key may be of type trusted iff the trusted key is
builtin or both the trusted key and encrypted keys are built as
modules.  This patch resolves the build dependency problem.

- Use "masterkey-$(CONFIG_TRUSTED_KEYS)-$(CONFIG_ENCRYPTED_KEYS)" construct
to encapsulate the above logic. (Suggested by Dimtry Kasatkin.)
- Fixing the encrypted-keys Makefile, results in a module name change
from encrypted.ko to encrypted-keys.ko.
- Add module dependency for request_trusted_key() definition

Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
12 years agoencrypted-keys: fix error return code
Mimi Zohar [Mon, 24 Oct 2011 12:17:42 +0000 (08:17 -0400)] 
encrypted-keys: fix error return code

Fix request_master_key() error return code.

Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
12 years agoxen-gntalloc: signedness bug in add_grefs()
Dan Carpenter [Fri, 4 Nov 2011 18:24:36 +0000 (21:24 +0300)] 
xen-gntalloc: signedness bug in add_grefs()

gref->gref_id is unsigned so the error handling didn't work.
gnttab_grant_foreign_access() returns an int type, so we can add a
cast here, and it doesn't cause any problems.
gnttab_grant_foreign_access() can return a variety of errors
including -ENOSPC, -ENOSYS and -ENOMEM.

CC: stable@kernel.org
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
12 years agoxen-gntalloc: integer overflow in gntalloc_ioctl_alloc()
Dan Carpenter [Fri, 4 Nov 2011 18:24:08 +0000 (21:24 +0300)] 
xen-gntalloc: integer overflow in gntalloc_ioctl_alloc()

On 32 bit systems a high value of op.count could lead to an integer
overflow in the kzalloc() and gref_ids would be smaller than
expected.  If the you triggered another integer overflow in
"if (gref_size + op.count > limit)" then you'd probably get memory
corruption inside add_grefs().

CC: stable@kernel.org
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
12 years agoxen-gntdev: integer overflow in gntdev_alloc_map()
Dan Carpenter [Fri, 4 Nov 2011 18:23:32 +0000 (21:23 +0300)] 
xen-gntdev: integer overflow in gntdev_alloc_map()

The multiplications here can overflow resulting in smaller buffer
sizes than expected.  "count" comes from a copy_from_user().

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
12 years agoxen:pvhvm: enable PVHVM VCPU placement when using more than 32 CPUs.
Zhenzhong Duan [Fri, 28 Oct 2011 05:28:59 +0000 (22:28 -0700)] 
xen:pvhvm: enable PVHVM VCPU placement when using more than 32 CPUs.

PVHVM running with more than 32 vcpus and pv_irq/pv_time enabled
need VCPU placement to work, or else it will softlockup.

CC: stable@kernel.org
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
12 years agoxen/balloon: Avoid OOM when requesting highmem
Daniel De Graaf [Wed, 19 Oct 2011 21:59:37 +0000 (17:59 -0400)] 
xen/balloon: Avoid OOM when requesting highmem

If highmem pages are requested from the balloon on a system without
highmem, the implementation of alloc_xenballooned_pages will allocate
all available memory trying to find highmem pages to return. Allow
low memory to be returned when highmem pages are requested to avoid
this loop.

Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
12 years agoxen: Remove hanging references to CONFIG_XEN_PLATFORM_PCI
Daniel De Graaf [Wed, 19 Oct 2011 22:05:27 +0000 (18:05 -0400)] 
xen: Remove hanging references to CONFIG_XEN_PLATFORM_PCI

In 5fbdc10395cd500d6ff844825a918c4e6f38de37 the XEN_PLATFORM_PCI config
option was removed, but references in header files remained. Clean up
those references.

Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
12 years agoxen: map foreign pages for shared rings by updating the PTEs directly
David Vrabel [Thu, 29 Sep 2011 15:53:32 +0000 (16:53 +0100)] 
xen: map foreign pages for shared rings by updating the PTEs directly

When mapping a foreign page with xenbus_map_ring_valloc() with the
GNTTABOP_map_grant_ref hypercall, set the GNTMAP_contains_pte flag and
pass a pointer to the PTE (in init_mm).

After the page is mapped, the usual fault mechanism can be used to
update additional MMs.  This allows the vmalloc_sync_all() to be
removed from alloc_vm_area().

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
[v1: Squashed fix by Michal for no-mmu case]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
12 years agoALSA: hda - Fix the connection selection of ADCs on Cirrus codecs
Takashi Iwai [Wed, 16 Nov 2011 17:05:11 +0000 (18:05 +0100)] 
ALSA: hda - Fix the connection selection of ADCs on Cirrus codecs

spec->cur_adc isn't set until cs_capture_pcm_prepare() is called although
the driver tries to select the connection at init time and at auto-mic
switch.  This results in the access to the widget NID 0, which is
obviously invalid, also a wrong capture source.

This patch fixes the issue by issuing the connect-select verb conditionally
at appropriate places.

Reported-and-tested-by: Dylan Reid <dgreid@chromium.org>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
12 years agointel: Convert <FOO>_LENGTH_OF_ADDRESS to ETH_ALEN
Joe Perches [Tue, 20 Sep 2011 15:32:52 +0000 (15:32 +0000)] 
intel: Convert <FOO>_LENGTH_OF_ADDRESS to ETH_ALEN

Use the normal #defines not module specific ones.

Signed-off-by: Joe Perches <joe@perches.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
12 years agoigb: Convert bare printk to pr_notice
Joe Perches [Fri, 21 Oct 2011 20:04:09 +0000 (20:04 +0000)] 
igb: Convert bare printk to pr_notice

printks should use KERN_ levels.

Signed-off-by: Joe Perches <joe@perches.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
12 years agoigb: Convert printks to pr_<level>
Jeff Kirsher [Fri, 21 Oct 2011 20:01:34 +0000 (20:01 +0000)] 
igb: Convert printks to pr_<level>

Based on original patch from Joe Perches <joe@perches.com>

Use the current logging styles.

pr_<level> conversions are now prefixed with "igb: "

Correct a defect where the trailing NTU may have been printed
on a separate line because of an interleaving hex_dump.

Remove unnecessary uses of KERN_CONT and use single pr_info()s
to avoid any possible output interleaving from other modules.

Coalesce formats as appropriate.

-v2 fix-up to make checkpatch.pl compliant and remove change to
    the copyright line

CC: Joe Perches <joe@perches.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
12 years agoixgbevf: Convert printks to pr_<level>
Jeff Kirsher [Fri, 21 Oct 2011 19:38:18 +0000 (19:38 +0000)] 
ixgbevf: Convert printks to pr_<level>

Based on the original patch from Joe Perches <joe@perches.com>

Use the current logging styles, prefix output with "ixgbevf: "

Add #define pr_fmt
Coalesce formats.

-v2 Fix-up to make checkpatch.pl compliant and remove change to
    copyright line

CC: Joe Perches <joe@perches.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
12 years agoigbvf: Convert printks to pr_<level>
Jeff Kirsher [Fri, 21 Oct 2011 19:42:26 +0000 (19:42 +0000)] 
igbvf: Convert printks to pr_<level>

Based on the previous patch from Joe Perches <joe@perches.com>

Use current logging styles.

Prefix all output via #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
Neaten link status dev_info.

-v2 Remove Copyright changes and fix-up patch to make it checkpatch.pl
    compliant.

CC: Joe Perches <joe@perches.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
12 years agoixgbe: fix LED blink logic to check for link
Emil Tantilov [Sat, 29 Oct 2011 06:54:55 +0000 (06:54 +0000)] 
ixgbe: fix LED blink logic to check for link

Previously the driver would force link without checking whether the link was
already established. This caused some inconsistencies in the LED blink rate.

Do not force link if link is already up.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
12 years agoe1000e: Convert printks to pr_<level>
Jeff Kirsher [Thu, 3 Nov 2011 11:40:28 +0000 (11:40 +0000)] 
e1000e: Convert printks to pr_<level>

Based on the original patch from Joe Perches.
Use the current logging styles.
pr_<level> conversions are now prefixed with "e1000e:"
Correct a couple of defects where the trailing NTU may have
been printed on a separate line because of an interleaving
hex_dump.
Remove unnecessary uses of KERN_CONT and use single pr_info()s
to avoid any possible output interleaving from other modules.
Coalesce formats as appropriate.
Remove an extra space from a broken across lines
coalescing of "Link Status " and " Change".

-v2 Remove changes to Copyright string

CC: Joe Perches <joe@perches.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
12 years agoe1000e: convert to real ndo_set_rx_mode
Jesse Brandeburg [Fri, 4 Nov 2011 05:47:06 +0000 (05:47 +0000)] 
e1000e: convert to real ndo_set_rx_mode

Commit afc4b13d (net: remove use of ndo_set_multicast_list in
drivers) changed e1000e to use the ndo_set_rx_mode entry point,
but didn't implement the unicast address programming
functionality. Implement it to achieve the ability to add unicast
addresses.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
12 years agoALSA: hda - Update URLs in document
Takashi Iwai [Wed, 16 Nov 2011 09:52:01 +0000 (10:52 +0100)] 
ALSA: hda - Update URLs in document

Some stuff was moved from kernel.org to other places.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
12 years agoALSA: hda - move eld->spk_alloc fixup to hdmi_update_eld()
Wu Fengguang [Wed, 16 Nov 2011 08:29:48 +0000 (16:29 +0800)] 
ALSA: hda - move eld->spk_alloc fixup to hdmi_update_eld()

It looks more natural and saves two lines of code.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
12 years agoALSA: hda - delayed ELD repoll
Wu Fengguang [Wed, 16 Nov 2011 08:29:47 +0000 (16:29 +0800)] 
ALSA: hda - delayed ELD repoll

The Intel HDMI chips (ironlake at least) are found to have ~250ms delay
between the ELD_Valid=1 hotplug event is send and the ELD buffer becomes
actually readable. During the time the ELD buffer is mysteriously all 0.

Fix it by scheduling a delayed work to re-read ELD buffer after 300ms.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
12 years agoALSA: hda - fix ELD memory leak
Wu Fengguang [Wed, 16 Nov 2011 08:29:46 +0000 (16:29 +0800)] 
ALSA: hda - fix ELD memory leak

memset(eld) clears eld->proc_entry which will leak the struct
snd_info_entry when unloading module.

Fix it by
- memset only the fields before eld->eld_buffer
- set eld->eld_valid to true _after_ all eld fields have been filled

Cc: <stable@kernel.org>
Cc: Pierre-louis Bossart <pierre-louis.bossart@intel.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
12 years agoMerge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
Linus Torvalds [Wed, 16 Nov 2011 09:33:50 +0000 (07:33 -0200)] 
Merge branch 'for-linus' of git://git390.marist.edu/linux-2.6

* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
  [S390] topology: fix topology on z10 machines
  [S390] crypto: avoid MSA3 and MSA4 instructions in ESA mode
  [S390] avoid STCKF if running in ESA mode
  [S390] zfcpdump: Do not initialize zfcpdump in kdump mode
  [S390] ap: Setup processing for messages in request queue.
  [S390] Kconfig: Select CONFIG_KEXEC for CONFIG_CRASH_DUMP
  [S390] incorrect note program header
  [S390] pfault: ignore leftover completion interrupts
  [S390] fix pgste update logic
  [S390] wire up process_vm syscalls

12 years agoblock: add missed trace_block_plug
Shaohua Li [Wed, 16 Nov 2011 08:21:50 +0000 (09:21 +0100)] 
block: add missed trace_block_plug

After flush plug list, the list has no request, so we need to add a
trace_block_plug().

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Reviewed-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
12 years agoparide: fix potential information leak in pg_read()
Dan Carpenter [Wed, 16 Nov 2011 08:21:50 +0000 (09:21 +0100)] 
paride: fix potential information leak in pg_read()

Smatch has a new check for Rosenberg type information leaks where structs
are copied to the user with uninitialized stack data in them.  i In this
case, the pg_write_hdr struct has a hole in it.

struct pg_write_hdr {
        char                       magic;                /*     0     1 */
        char                       func;                 /*     1     1 */
        /* XXX 2 bytes hole, try to pack */
        int                        dlen;                 /*     4     4 */

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Tim Waugh <tim@cyberelk.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
12 years agobio: change some signed vars to unsigned
Dan Carpenter [Wed, 16 Nov 2011 08:21:50 +0000 (09:21 +0100)] 
bio: change some signed vars to unsigned

This is just a cleanup patch to silence a static checker warning.

The problem is that we cap "nr_iovecs" so it can't be larger than
"UIO_MAXIOV" but we don't check for negative values.  It turns out this is
prevented at other layers, but logically it doesn't make sense to have
negative nr_iovecs so making it unsigned is nicer.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
12 years agoblock: avoid unnecessary plug list flush
Shaohua Li [Wed, 16 Nov 2011 08:21:50 +0000 (09:21 +0100)] 
block: avoid unnecessary plug list flush

get_request_wait() could sleep and flush the plug list.  If the list is
already flushed, don't flush again.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Reviewed-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
12 years agocciss: auto engage SCSI mid layer at driver load time
Stephen M. Cameron [Wed, 16 Nov 2011 08:21:49 +0000 (09:21 +0100)] 
cciss: auto engage SCSI mid layer at driver load time

A long time ago, probably in 2002, one of the distros, or maybe more than
one, loaded block drivers prior to loading the SCSI mid layer.  This meant
that the cciss driver, being a block driver, could not engage the SCSI mid
layer at init time without panicking, and relied on being poked by a
userland program after the system was up (and the SCSI mid layer was
therefore present) to engage the SCSI mid layer.

This is no longer the case, and cciss can safely rely on the SCSI mid
layer being present at init time and engage the SCSI mid layer straight
away.  This means that users will see their tape drives and medium
changers at driver load time without need for a script in /etc/rc.d that
does this:

for x in /proc/driver/cciss/cciss*
do
echo "engage scsi" > $x
done

However, if no tape drives or medium changers are detected, the SCSI mid
layer will not be engaged.  If a tape drive or medium change is later
hot-added to the system it will then be necessary to use the above script
or similar for the device(s) to be acceesible.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
12 years agoloop: cleanup set_status interface
Dmitry Monakhov [Wed, 16 Nov 2011 08:21:49 +0000 (09:21 +0100)] 
loop: cleanup set_status interface

1) Anyone who has read access to loopdev has permission to call set_status
   and may change important parameters such as lo_offset, lo_sizelimit and
   so on, which contradicts to read access pattern and definitely equals
   to write access pattern.
2) Add lo_offset over i_size check to prevent blkdev_size overflow.
   ##Testcase_bagin
   #dd if=/dev/zero of=./file bs=1k count=1
   #losetup /dev/loop0 ./file
   /* userspace_application */
   struct loop_info64 loinf;
   fd = open("/dev/loop0", O_RDONLY);
   ioctl(fd, LOOP_GET_STATUS64, &loinf);
   /* Set offset to any value which is bigger than i_size, and sizelimit
    * to nonzero value*/
   loinf.lo_offset = 4096*1024;
   loinf.lo_sizelimit = 1024;
   ioctl(fd, LOOP_SET_STATUS64, &loinf);
   /* After this loop device will have size similar to 0x7fffffffffxxxx */
   #blockdev --getsz /dev/loop0
   ##OUTPUT: 36028797018955968
   ##Testcase_end

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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