firefly-linux-kernel-4.4.55.git
11 years agodma: mmp_pdma: only complete one transaction from dma_do_tasklet()
Daniel Mack [Wed, 21 Aug 2013 12:08:54 +0000 (14:08 +0200)]
dma: mmp_pdma: only complete one transaction from dma_do_tasklet()

Currently, when an interrupt has occured for a channel, the tasklet
worker code will only look at the very last entry in the running list
and complete its cookie, and then dispose the entire running chain.
Hence, the first transaction's cookie will never complete.

In fact, the interrupt we should handle will be the one related to the
first descriptor in the chain with the ENDIRQEN bit set, so complete
the second transaction that is in fact still running.

As a result, the driver can't currently handle multiple transactions on
one chanel, and it's likely that no drivers exist that rely on this
feature.

Fix this by walking the running_chain and look for the first
descriptor that has the interrupt-enable bit set. Only queue
descriptors up to that point for completion handling, while leaving
the rest intact. Also, only make the channel idle if the list is
completely empty after such a cycle.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agoacpi-dma: remove ugly conversion
Andy Shevchenko [Wed, 21 Aug 2013 11:27:06 +0000 (14:27 +0300)]
acpi-dma: remove ugly conversion

In case of big endian CPU we have to convert either all fields in the structure
or leave this job to ACPICA. The second choice seems the best.

So, let's remove the ugly conversion that is not fully comprehensive anyway.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agoacpi-dma, doc: append managed function to the list
Andy Shevchenko [Wed, 21 Aug 2013 11:27:05 +0000 (14:27 +0300)]
acpi-dma, doc: append managed function to the list

ACPI DMA provides managed function to register the slave DMA controller in the
internal container. This patch anounces that function in the corresponding
documentation file.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Rob Landley <rob@landley.net>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodmaengine: ste_dma40: off by one in d40_of_probe()
Dan Carpenter [Fri, 23 Aug 2013 09:23:43 +0000 (12:23 +0300)]
dmaengine: ste_dma40: off by one in d40_of_probe()

If "num_disabled" is equal to STEDMA40_MAX_PHYS (32) then we would write
one space beyond the end of the pdata->disable_channels[] array.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodma: ste_dma: Fix warning when CONFIG_ARM_LPAE=y
Fabio Estevam [Thu, 22 Aug 2013 00:34:02 +0000 (21:34 -0300)]
dma: ste_dma: Fix warning when CONFIG_ARM_LPAE=y

When CONFIG_ARM_LPAE=y the following build warning are generated:

drivers/dma/ste_dma40.c:3228:2: warning: format '%x' expects argument of type 'unsigned int', but argument 4 has type 'resource_size_t' [-Wformat]
drivers/dma/ste_dma40.c:3582:3: warning: format '%x' expects argument of type 'unsigned int', but argument 4 has type 'resource_size_t' [-Wformat]
drivers/dma/ste_dma40.c:3582:3: warning: format '%x' expects argument of type 'unsigned int', but argument 5 has type 'resource_size_t' [-Wformat]
drivers/dma/ste_dma40.c:3593:5: warning: format '%x' expects argument of type 'unsigned int', but argument 5 has type 'resource_size_t' [-Wformat]

According to Documentation/printk-formats.txt '%pa' can be used to properly
print 'resource_size_t'.

Also, for printing memory region the '%pr' is more convenient.

Reported-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Kevin Hilman <khilman@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodma: ipu: remove unnecessary platform_set_drvdata()
Jingoo Han [Wed, 21 Aug 2013 09:52:54 +0000 (18:52 +0900)]
dma: ipu: remove unnecessary platform_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodma: mxs-dma: remove code left from generic DMA binding conversion
Shawn Guo [Tue, 16 Jul 2013 09:28:46 +0000 (17:28 +0800)]
dma: mxs-dma: remove code left from generic DMA binding conversion

With all mxs-dma clients moved to use generic DMA helper, the code
left from generic DMA binding conversion can be removed now.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodma: imx-sdma: remove the unused completion
Huang Shijie [Fri, 5 Jul 2013 07:50:55 +0000 (15:50 +0800)]
dma: imx-sdma: remove the unused completion

After the patch: "2ccaef0 dma: imx-sdma: make channel0 operations atomic",
the "done" completion is not used any more.

Just remove it.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodma: mmp: simplify use of devm_ioremap_resource
Julia Lawall [Wed, 14 Aug 2013 09:11:11 +0000 (11:11 +0200)]
dma: mmp: simplify use of devm_ioremap_resource

Remove unneeded error handling on the result of a call to
platform_get_resource when the value is passed to devm_ioremap_resource.

A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression pdev,res,n,e,e1;
expression ret != 0;
identifier l;
@@

- res = platform_get_resource(pdev, IORESOURCE_MEM, n);
  ... when != res
- if (res == NULL) { ... \(goto l;\|return ret;\) }
  ... when != res
+ res = platform_get_resource(pdev, IORESOURCE_MEM, n);
  e = devm_ioremap_resource(e1, res);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodma: mmp_pdma: add support for byte-aligned transfers
Daniel Mack [Sat, 10 Aug 2013 16:52:22 +0000 (18:52 +0200)]
dma: mmp_pdma: add support for byte-aligned transfers

The PXA DMA controller has a DALGN register which allows for
byte-aligned DMA transfers. Use it in case any of the transfer
descriptors is not aligned to a mask of ~0x7.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodma: mmp_pdma: remove duplicate assignment
Daniel Mack [Sat, 10 Aug 2013 16:52:21 +0000 (18:52 +0200)]
dma: mmp_pdma: remove duplicate assignment

The DMA_SLAVE is currently set twice.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodma: mmp_pdma: print the number of channels at probe time
Daniel Mack [Sat, 10 Aug 2013 16:52:20 +0000 (18:52 +0200)]
dma: mmp_pdma: print the number of channels at probe time

That helps check the provided runtime information.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodma: mmp_pdma: make the controller a DMA provider
Daniel Mack [Sat, 10 Aug 2013 16:52:19 +0000 (18:52 +0200)]
dma: mmp_pdma: make the controller a DMA provider

This patch makes the mmp_pdma controller able to provide DMA resources
in DT environments by providing an dma xlate function.

of_dma_simple_xlate() isn't used here, because if fails to handle
multiple different DMA engines or several instances of the same
controller. Instead, a private implementation is provided that makes use
of the newly introduced dma_get_slave_channel() call.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodma: mmp_pdma: add filter function
Daniel Mack [Sat, 10 Aug 2013 16:52:18 +0000 (18:52 +0200)]
dma: mmp_pdma: add filter function

PXA peripherals need to obtain specific DMA request ids which will
eventually be stored in the DRCMR register.

Currently, clients are expected to store that number inside the slave
config block as slave_id, which is unfortunately incompatible with the
way DMA resources are handled in DT environments.

This patch adds a filter function which stores the filter parameter
passed in by of-dma.c into the channel's drcmr register.

For backward compatability, cfg->slave_id is still used if set to
a non-zero value.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodma: mmp_pdma: fix maximum transfer length
Daniel Mack [Sat, 10 Aug 2013 16:52:17 +0000 (18:52 +0200)]
dma: mmp_pdma: fix maximum transfer length

There's no reason for limiting the maximum transfer length to 0x1000.
Take the actual bit mask instead; the PDMA is able to transfer chunks of
up to SZ_8K - 1.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodma: mmp_pdma: refactor unlocking path in lookup_phy()
Daniel Mack [Sat, 10 Aug 2013 16:52:16 +0000 (18:52 +0200)]
dma: mmp_pdma: refactor unlocking path in lookup_phy()

As suggested by Ezequiel García, release the spinlock at the end of the
function only, and use a goto for the control flow.

Just a minor cleanup.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodma: mmp_pdma: factor out DRCMR register calculation
Daniel Mack [Sat, 10 Aug 2013 16:52:15 +0000 (18:52 +0200)]
dma: mmp_pdma: factor out DRCMR register calculation

The exact same calculation is done twice, so let's factor it out to a
macro.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agoMerge branch 'topic/of' into for-linus
Vinod Koul [Wed, 14 Aug 2013 08:25:04 +0000 (13:55 +0530)]
Merge branch 'topic/of' into for-linus

11 years agodma: pl330: split off common code to give back descriptors
Chanho Park [Fri, 9 Aug 2013 11:11:33 +0000 (20:11 +0900)]
dma: pl330: split off common code to give back descriptors

This patch adds __pl330_giveback_descs which give back descriptors when fails
allocating descriptors. It requires to eliminate duplication for
pl330_prep_dma_sg which will be added later.

Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Acked-by : Jassi Brar <jassisinghbrar@gmail.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodmaengine: sirf: add PM entries for sleep and runtime
Barry Song [Tue, 30 Jul 2013 09:44:34 +0000 (17:44 +0800)]
dmaengine: sirf: add PM entries for sleep and runtime

this patch adds PM ops entries in sirf-dma drivers, so that this
driver can support suspend/resume, hibernation and runtime PM.

while suspending, sirf-dma will lose all registers, so we save
them at suspend and restore in resume for active channels.

Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Rongjun Ying <Rongjun.Ying@csr.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodma: use dev_get_platdata()
Jingoo Han [Tue, 30 Jul 2013 08:09:11 +0000 (17:09 +0900)]
dma: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodma: sirf: use NULL instead of 0
Jingoo Han [Tue, 6 Aug 2013 10:37:56 +0000 (19:37 +0900)]
dma: sirf: use NULL instead of 0

sirfsoc_dma_prep_cyclic() returns pointer, thus NULL should be
used instead of 0 in order to fix the following sparse warning:

drivers/dma/sirf-dma.c:598:24: warning: Using plain integer as NULL pointer

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodma: mv_xor: use NULL instead of 0
Jingoo Han [Tue, 6 Aug 2013 10:37:08 +0000 (19:37 +0900)]
dma: mv_xor: use NULL instead of 0

%p is used, thus NULL should be used instead of 0
in order to fix the following sparse warning:

drivers/dma/mv_xor.c:648:9: warning: Using plain integer as NULL pointer

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodma: mmp_pdma: Staticize mmp_pdma_alloc_descriptor()
Jingoo Han [Tue, 6 Aug 2013 10:35:13 +0000 (19:35 +0900)]
dma: mmp_pdma: Staticize mmp_pdma_alloc_descriptor()

mmp_pdma_alloc_descriptor() is used only in this file.
Fix the following sparse warning:

drivers/dma/mmp_pdma.c:359:25: warning: symbol 'mmp_pdma_alloc_descriptor' was not declared. Should it be static?

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodmaengine: add interface of dma_get_slave_channel
Zhangfei Gao [Fri, 28 Jun 2013 12:39:12 +0000 (20:39 +0800)]
dmaengine: add interface of dma_get_slave_channel

Suggested by Arnd, add dma_get_slave_channel interface
Dma host driver could get specific channel specificied by request line, rather than filter.

host example:
static struct dma_chan *xx_of_dma_simple_xlate(struct of_phandle_args *dma_spec,
struct of_dma *ofdma)
{
struct xx_dma_dev *d = ofdma->of_dma_data;
unsigned int request = dma_spec->args[0];

if (request > d->dma_requests)
return NULL;

return dma_get_slave_channel(&(d->chans[request].vc.chan));
}

probe:
of_dma_controller_register((&op->dev)->of_node, xx_of_dma_simple_xlate, d);

Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodma: mmp_pdma: clear DRCMR when free a phy channel
Xiang Wang [Tue, 18 Jun 2013 06:55:59 +0000 (14:55 +0800)]
dma: mmp_pdma: clear DRCMR when free a phy channel

In mmp pdma, phy channels are allocated/freed dynamically.
The mapping from DMA request to DMA channel number in DRCMR
should be cleared when a phy channel is freed. Otherwise
conflicts will happen when:
1. A is using channel 2 and free it after finished, but A
still maps to channel 2 in DRCMR of A.
2. Now another one B gets channel 2. So B maps to channel 2
too in DRCMR of B.
In the datasheet, it is described that "Do not map two active
requests to the same channel since it produces unpredictable
results" and we can observe that during test.

Signed-off-by: Xiang Wang <wangx@marvell.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodma: mmp_pdma: add protect when alloc/free phy channels
Xiang Wang [Tue, 18 Jun 2013 06:55:58 +0000 (14:55 +0800)]
dma: mmp_pdma: add protect when alloc/free phy channels

In mmp pdma, phy channels are allocated/freed dynamically
and frequently. But no proper protection is added.
Conflict will happen when multi-users are requesting phy
channels at the same time. Use spinlock to protect.

Signed-off-by: Xiang Wang <wangx@marvell.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodmaengine/MAINTAINERS: Add Andy as Co-Maintainer of DW DMA Controller
Viresh Kumar [Fri, 19 Jul 2013 03:43:58 +0000 (09:13 +0530)]
dmaengine/MAINTAINERS: Add Andy as Co-Maintainer of DW DMA Controller

Andy has done enough work on Synopsys Designware DMA Controller and I believe he
should Co-Maintain this driver along with me. So this patch.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodma: dw: return DMA_PAUSED only if cookie status is DMA_IN_PROGRESS
Andy Shevchenko [Mon, 15 Jul 2013 12:04:41 +0000 (15:04 +0300)]
dma: dw: return DMA_PAUSED only if cookie status is DMA_IN_PROGRESS

To obey a usual practice let's return DMA_PAUSED status only if
dma_cookie_status returned DMA_IN_PROGRESS.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodma: dw: return DMA_SUCCESS immediately from device_tx_status()
Andy Shevchenko [Mon, 15 Jul 2013 12:04:40 +0000 (15:04 +0300)]
dma: dw: return DMA_SUCCESS immediately from device_tx_status()

There is no point to go throught the rest of the function if first call to
dma_cookie_status() returned DMA_SUCCESS.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodma: dw: allow shared interrupts
Andy Shevchenko [Mon, 15 Jul 2013 12:04:39 +0000 (15:04 +0300)]
dma: dw: allow shared interrupts

In the PC world is quite possible that devices are sharing the same interrupt
line. The patch prepares dw_dmac driver to such cases.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodma: dw: improve comparison with ~0
Andy Shevchenko [Mon, 15 Jul 2013 12:04:38 +0000 (15:04 +0300)]
dma: dw: improve comparison with ~0

In general ~0 does not fit some integer types. Let's do a helper to make a
comparison with that constant properly.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodma: dw: append MODULE_DEVICE_TABLE for ACPI case
Andy Shevchenko [Mon, 15 Jul 2013 12:04:37 +0000 (15:04 +0300)]
dma: dw: append MODULE_DEVICE_TABLE for ACPI case

In rare cases (mostly for the testing purposes) the dw_dmac driver might be
compiled as a module as well as the other LPSS device drivers (I2C, SPI,
HSUART). When udev handles the event of the devices appearing the dw_dmac
module is missing. This patch will fix that.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agoacpi-dma: fix sparse warning
Andy Shevchenko [Mon, 15 Jul 2013 12:04:36 +0000 (15:04 +0300)]
acpi-dma: fix sparse warning

This patch fixes sparse warning:
drivers/dma/acpi-dma.c:76:21: sparse: cast to restricted __le32

Since everything in all ACPI tables is little-endian, by definition, the used
types in practice are uXX. Thus, we have to enforce __leXX if we want to
convert them to CPU order.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agotxx9dmac: return DMA_SUCCESS immediately from device_tx_status()
Andy Shevchenko [Mon, 27 May 2013 12:14:42 +0000 (15:14 +0300)]
txx9dmac: return DMA_SUCCESS immediately from device_tx_status()

There is no point to go throught the rest of the function if first call to
dma_cookie_status() returned DMA_SUCCESS.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agommp_tdma: set cookies as well when asked for tx status
Andy Shevchenko [Mon, 27 May 2013 12:14:41 +0000 (15:14 +0300)]
mmp_tdma: set cookies as well when asked for tx status

dma_set_residue() sets only residue value, so user can't rely on the returned
values of cookies. That patch standardize the behaviour.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agoipu_idmac: re-use dma_cookie_status()
Andy Shevchenko [Mon, 27 May 2013 12:14:40 +0000 (15:14 +0300)]
ipu_idmac: re-use dma_cookie_status()

It's better to use generic dma_cookie_status() that allows user to get standard
possible return codes independently of the DMAC driver in charge.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agotegra20-apb-dma: remove useless use of lock
Andy Shevchenko [Mon, 27 May 2013 12:14:39 +0000 (15:14 +0300)]
tegra20-apb-dma: remove useless use of lock

Accordingly to dma_cookie_status() description locking is not required.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: linux-tegra@vger.kernel.org
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agopch_dma: remove useless use of lock
Andy Shevchenko [Mon, 27 May 2013 12:14:38 +0000 (15:14 +0300)]
pch_dma: remove useless use of lock

Accordingly to dma_cookie_status() description locking is not required.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agompc512x_dma: remove useless use of lock
Andy Shevchenko [Mon, 27 May 2013 12:14:37 +0000 (15:14 +0300)]
mpc512x_dma: remove useless use of lock

Accordingly to dma_cookie_status() description locking is not required.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agommp_pdma: remove useless use of lock
Andy Shevchenko [Mon, 27 May 2013 12:14:36 +0000 (15:14 +0300)]
mmp_pdma: remove useless use of lock

Accordingly to dma_cookie_status() description locking is not required.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agofsldma: remove useless use of lock
Andy Shevchenko [Mon, 27 May 2013 12:14:35 +0000 (15:14 +0300)]
fsldma: remove useless use of lock

Accordingly to dma_cookie_status() description locking is not required.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Li Yang <leoli@freescale.com>
Cc: Zhang Wei <zw@zh-kernel.org>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agoep93xx_dma: remove useless use of lock
Andy Shevchenko [Mon, 27 May 2013 12:14:34 +0000 (15:14 +0300)]
ep93xx_dma: remove useless use of lock

Accordingly to dma_cookie_status() description locking is not required.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agoedma: no need to assign residue to 0 explicitly
Andy Shevchenko [Mon, 27 May 2013 12:14:33 +0000 (15:14 +0300)]
edma: no need to assign residue to 0 explicitly

Residue value is assigned to 0 by dma_cookie_status().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agomxs-dma: remove useless variable
Andy Shevchenko [Mon, 27 May 2013 12:14:32 +0000 (15:14 +0300)]
mxs-dma: remove useless variable

last_used variable is applied only once, so, let's substitute it by its value.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agoimx-sdma: remove useless variable
Andy Shevchenko [Mon, 27 May 2013 12:14:31 +0000 (15:14 +0300)]
imx-sdma: remove useless variable

last_used variable is applied only once, so, let's substitute it by its value.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agoLinux 3.11-rc4
Linus Torvalds [Sun, 4 Aug 2013 20:46:46 +0000 (13:46 -0700)]
Linux 3.11-rc4

11 years agoMerge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma
Linus Torvalds [Sun, 4 Aug 2013 18:46:07 +0000 (11:46 -0700)]
Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine fixes from Vinod Koul:
 "Two fixes for slave dmaengine.  The first fixes cyclic dma transfers
  for pl330 and the second one makes us return the correct error code on
  probe"

* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
  dma: pl330: Fix cyclic transfers
  pch_dma: fix error return code in pch_dma_probe()

11 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Sun, 4 Aug 2013 18:44:18 +0000 (11:44 -0700)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

Pull drm fix from Dave Airlie:
 "Just a quick fix that a few people have reported, be nice to have in
  asap"

The drm tree seems to be very confused about 64-bit divides.  Here it
uses a slow 64-by-64 bit divide to divide by a small constant.  Oh well.
Doesn't look performance-critical, just stupid.

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/radeon: fix 64 bit divide in SI spm code

11 years agotmpfs: fix SEEK_DATA/SEEK_HOLE regression
Hugh Dickins [Sun, 4 Aug 2013 18:30:25 +0000 (11:30 -0700)]
tmpfs: fix SEEK_DATA/SEEK_HOLE regression

Commit 46a1c2c7ae53 ("vfs: export lseek_execute() to modules") broke the
tmpfs SEEK_DATA/SEEK_HOLE implementation, because vfs_setpos() converts
the carefully prepared -ENXIO to -EINVAL.  Other filesystems avoid it in
error cases: do the same in tmpfs.

Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Jie Liu <jeff.liu@oracle.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoMerge tag 'sound-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Linus Torvalds [Sun, 4 Aug 2013 18:00:43 +0000 (11:00 -0700)]
Merge tag 'sound-3.11' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "All small regression or small fixes, nothing surprising at this stage.

   - regression fix for intel Mac Mini quirk
   - compress ioctl error fix
   - ASoC fixes for control change notifications, some UI fixes,
     driver-specific fixes (resource leak, build errors, etc)"

* tag 'sound-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Fix missing fixup for Mac Mini with STAC9221
  ASoC: wm0010: Fix resource leak
  ASoC: au1x: Fix build
  ASoC: bf5xx-ac97: Fix compile error with SND_BF5XX_HAVE_COLD_RESET
  ASoC: bfin-ac97: Fix prototype error following AC'97 refactoring
  ALSA: compress: fix the return value for SNDRV_COMPRESS_VERSION
  ASoC: dapm: Fix return value of snd_soc_dapm_put_{volsw,enum_virt}()

11 years agodrm/radeon: fix 64 bit divide in SI spm code
Alex Deucher [Thu, 1 Aug 2013 13:03:29 +0000 (09:03 -0400)]
drm/radeon: fix 64 bit divide in SI spm code

Forgot to use the appropriate math64 function.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Sat, 3 Aug 2013 22:00:23 +0000 (15:00 -0700)]
Merge git://git./linux/kernel/git/davem/net

Pull networking fixes from David Miller:

 1) Don't ignore user initiated wireless regulatory settings on cards
    with custom regulatory domains, from Arik Nemtsov.

 2) Fix length check of bluetooth information responses, from Jaganath
    Kanakkassery.

 3) Fix misuse of PTR_ERR in btusb, from Adam Lee.

 4) Handle rfkill properly while iwlwifi devices are offline, from
    Emmanuel Grumbach.

 5) Fix r815x devices DMA'ing to stack buffers, from Hayes Wang.

 6) Kernel info leak in ATM packet scheduler, from Dan Carpenter.

 7) 8139cp doesn't check for DMA mapping errors, from Neil Horman.

 8) Fix bridge multicast code to not snoop when no querier exists,
    otherwise mutlicast traffic is lost.  From Linus Lüssing.

 9) Avoid soft lockups in fib6_run_gc(), from Michal Kubecek.

10) Fix races in automatic address asignment on ipv6, which can result
    in incorrect lifetime assignments.  From Jiri Benc.

11) Cure build bustage when CONFIG_NET_LL_RX_POLL is not set and rename
    it CONFIG_NET_RX_BUSY_POLL to eliminate the last reference to the
    original naming of this feature.  From Cong Wang.

12) Fix crash in TIPC when server socket creation fails, from Ying Xue.

13) macvlan_changelink() silently succeeds when it shouldn't, from
    Michael S Tsirkin.

14) HTB packet scheduler can crash due to sign extension, fix from
    Stephen Hemminger.

15) With the cable unplugged, r8169 prints out a message every 10
    seconds, make it netif_dbg() instead of netif_warn().  From Peter
    Wu.

16) Fix memory leak in rtm_to_ifaddr(), from Daniel Borkmann.

17) sis900 gets spurious TX queue timeouts due to mismanagement of link
    carrier state, from Denis Kirjanov.

18) Validate somaxconn sysctl to make sure it fits inside of a u16.
    From Roman Gushchin.

19) Fix MAC address filtering on qlcnic, from Shahed Shaikh.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (68 commits)
  qlcnic: Fix for flash update failure on 83xx adapter
  qlcnic: Fix link speed and duplex display for 83xx adapter
  qlcnic: Fix link speed display for 82xx adapter
  qlcnic: Fix external loopback test.
  qlcnic: Removed adapter series name from warning messages.
  qlcnic: Free up memory in error path.
  qlcnic: Fix ingress MAC learning
  qlcnic: Fix MAC address filter issue on 82xx adapter
  net: ethernet: davinci_emac: drop IRQF_DISABLED
  netlabel: use domain based selectors when address based selectors are not available
  net: check net.core.somaxconn sysctl values
  sis900: Fix the tx queue timeout issue
  net: rtm_to_ifaddr: free ifa if ifa_cacheinfo processing fails
  r8169: remove "PHY reset until link up" log spam
  net: ethernet: cpsw: drop IRQF_DISABLED
  htb: fix sign extension bug
  macvlan: handle set_promiscuity failures
  macvlan: better mode validation
  tipc: fix oops when creating server socket fails
  net: rename CONFIG_NET_LL_RX_POLL to CONFIG_NET_RX_BUSY_POLL
  ...

11 years agoqlcnic: Fix for flash update failure on 83xx adapter
Himanshu Madhani [Sat, 3 Aug 2013 03:16:01 +0000 (23:16 -0400)]
qlcnic: Fix for flash update failure on 83xx adapter

Flash update routine was improperly checking register read API return value.
Modify register read API and perform proper error check.

Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Fix link speed and duplex display for 83xx adapter
Rajesh Borundia [Sat, 3 Aug 2013 03:16:00 +0000 (23:16 -0400)]
qlcnic: Fix link speed and duplex display for 83xx adapter

o Set link speed and duplex to unknown when link is not up.

Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Fix link speed display for 82xx adapter
Rajesh Borundia [Sat, 3 Aug 2013 03:15:59 +0000 (23:15 -0400)]
qlcnic: Fix link speed display for 82xx adapter

o Do not obtain link speed from register when adapter
  link is down.

Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Fix external loopback test.
Shahed Shaikh [Sat, 3 Aug 2013 03:15:58 +0000 (23:15 -0400)]
qlcnic: Fix external loopback test.

Driver was not handling external loopback diagnostic
test request.

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Removed adapter series name from warning messages.
Pratik Pujar [Sat, 3 Aug 2013 03:15:57 +0000 (23:15 -0400)]
qlcnic: Removed adapter series name from warning messages.

Signed-off-by: Pratik Pujar <pratik.pujar@qlogic.com>
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Free up memory in error path.
Himanshu Madhani [Sat, 3 Aug 2013 03:15:56 +0000 (23:15 -0400)]
qlcnic: Free up memory in error path.

Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Fix ingress MAC learning
Shahed Shaikh [Sat, 3 Aug 2013 03:15:55 +0000 (23:15 -0400)]
qlcnic: Fix ingress MAC learning

o Delete MAC address from the adapter's filter table
  if the source MAC address of ingress packet matches.

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Fix MAC address filter issue on 82xx adapter
Shahed Shaikh [Sat, 3 Aug 2013 03:15:54 +0000 (23:15 -0400)]
qlcnic: Fix MAC address filter issue on 82xx adapter

Driver was passing the address of a pointer instead of
the pointer itself.

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: ethernet: davinci_emac: drop IRQF_DISABLED
Mugunthan V N [Sat, 3 Aug 2013 11:09:45 +0000 (16:39 +0530)]
net: ethernet: davinci_emac: drop IRQF_DISABLED

IRQF_DISABLED is a no-op by now and should be removed.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMerge branch 'for-3.11' of git://linux-nfs.org/~bfields/linux
Linus Torvalds [Sat, 3 Aug 2013 18:15:03 +0000 (11:15 -0700)]
Merge branch 'for-3.11' of git://linux-nfs.org/~bfields/linux

Pull nfsd bugfixes from Bruce Fields:
 "Most of this is due to a screwup on my part -- some gss-proxy crashes
  got fixed before the merge window but somehow never made it out of a
  temporary git repo on my laptop...."

* 'for-3.11' of git://linux-nfs.org/~bfields/linux:
  svcrpc: set cr_gss_mech from gss-proxy as well as legacy upcall
  svcrpc: fix kfree oops in gss-proxy code
  svcrpc: fix gss-proxy xdr decoding oops
  svcrpc: fix gss_rpc_upcall create error
  NFSD/sunrpc: avoid deadlock on TCP connection due to memory pressure.

11 years agoMerge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck...
Linus Torvalds [Sat, 3 Aug 2013 18:14:25 +0000 (11:14 -0700)]
Merge tag 'hwmon-for-linus' of git://git./linux/kernel/git/groeck/linux-staging

Pull hwmon fix from Guenter Roeck:
 "Fix chip initialization/configuration in MAX6697 driver"

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (max6697) fix MAX6581 ideality

11 years agoMerge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Linus Torvalds [Sat, 3 Aug 2013 18:12:09 +0000 (11:12 -0700)]
Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm

Pull arm fixes fixes from Russell King:
 "This fixes a couple of problems with commit 48be69a026b2 ("ARM: move
  signal handlers into a vdso-like page"), one of which was originally
  discovered via my testing originally, but the fix for it was never
  actually committed.

  The other shows up on noMMU builds, and such platforms are extremely
  rare and as such are not part of my nightly testing"

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: fix nommu builds with 48be69a02 (ARM: move signal handlers into a vdso-like page)
  ARM: fix a cockup in 48be69a02 (ARM: move signal handlers into a vdso-like page)

11 years agohwmon: (max6697) fix MAX6581 ideality
Vivien Didelot [Tue, 30 Jul 2013 21:14:34 +0000 (17:14 -0400)]
hwmon: (max6697) fix MAX6581 ideality

Without this patch, the values for ideality (register 0x4b) and ideality
selection mask (register 0x4c) are inverted.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Cc: stable@vger.kernel.org # 3.9+
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
11 years agoMerge branch 'security-fixes' into fixes
Russell King [Sat, 3 Aug 2013 09:49:38 +0000 (10:49 +0100)]
Merge branch 'security-fixes' into fixes

11 years agoARM: fix nommu builds with 48be69a02 (ARM: move signal handlers into a vdso-like...
Russell King [Sat, 3 Aug 2013 09:39:51 +0000 (10:39 +0100)]
ARM: fix nommu builds with 48be69a02 (ARM: move signal handlers into a vdso-like page)

Olof reports that noMMU builds error out with:

arch/arm/kernel/signal.c: In function 'setup_return':
arch/arm/kernel/signal.c:413:25: error: 'mm_context_t' has no member named 'sigpage'

This shows one of the evilnesses of IS_ENABLED().  Get rid of it here
and replace it with #ifdef's - and as no noMMU platform can make use
of sigpage, depend on CONIFG_MMU not CONFIG_ARM_MPU.

Reported-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
11 years agoARM: fix a cockup in 48be69a02 (ARM: move signal handlers into a vdso-like page)
Russell King [Sat, 3 Aug 2013 09:30:05 +0000 (10:30 +0100)]
ARM: fix a cockup in 48be69a02 (ARM: move signal handlers into a vdso-like page)

Unfortunately, I never committed the fix to a nasty oops which can
occur as a result of that commit:

------------[ cut here ]------------
kernel BUG at /home/olof/work/batch/include/linux/mm.h:414!
Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 0 PID: 490 Comm: killall5 Not tainted 3.11.0-rc3-00288-gabe0308 #53
task: e90acac0 ti: e9be8000 task.ti: e9be8000
PC is at special_mapping_fault+0xa4/0xc4
LR is at __do_fault+0x68/0x48c

This doesn't show up unless you do quite a bit of testing; a simple
boot test does not do this, so all my nightly tests were passing fine.

The reason for this is that install_special_mapping() expects the
page array to stick around, and as this was only inserting one page
which was stored on the kernel stack, that's why this was blowing up.

Reported-by: Olof Johansson <olof@lixom.net>
Tested-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
11 years agonetlabel: use domain based selectors when address based selectors are not available
Paul Moore [Fri, 2 Aug 2013 18:45:08 +0000 (14:45 -0400)]
netlabel: use domain based selectors when address based selectors are not available

NetLabel has the ability to selectively assign network security labels
to outbound traffic based on either the LSM's "domain" (different for
each LSM), the network destination, or a combination of both.  Depending
on the type of traffic, local or forwarded, and the type of traffic
selector, domain or address based, different hooks are used to label the
traffic; the goal being minimal overhead.

Unfortunately, there is a bug such that a system using NetLabel domain
based traffic selectors does not correctly label outbound local traffic
that is not assigned to a socket.  The issue is that in these cases
the associated NetLabel hook only looks at the address based selectors
and not the domain based selectors.  This patch corrects this by
checking both the domain and address based selectors so that the correct
labeling is applied, regardless of the configuration type.

In order to acomplish this fix, this patch also simplifies some of the
NetLabel domainhash structures to use a more common outbound traffic
mapping type: struct netlbl_dommap_def.  This simplifies some of the code
in this patch and paves the way for further simplifications in the
future.

Signed-off-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: check net.core.somaxconn sysctl values
Roman Gushchin [Fri, 2 Aug 2013 14:36:40 +0000 (18:36 +0400)]
net: check net.core.somaxconn sysctl values

It's possible to assign an invalid value to the net.core.somaxconn
sysctl variable, because there is no checks at all.

The sk_max_ack_backlog field of the sock structure is defined as
unsigned short. Therefore, the backlog argument in inet_listen()
shouldn't exceed USHRT_MAX. The backlog argument in the listen() syscall
is truncated to the somaxconn value. So, the somaxconn value shouldn't
exceed 65535 (USHRT_MAX).
Also, negative values of somaxconn are meaningless.

before:
$ sysctl -w net.core.somaxconn=256
net.core.somaxconn = 256
$ sysctl -w net.core.somaxconn=65536
net.core.somaxconn = 65536
$ sysctl -w net.core.somaxconn=-100
net.core.somaxconn = -100

after:
$ sysctl -w net.core.somaxconn=256
net.core.somaxconn = 256
$ sysctl -w net.core.somaxconn=65536
error: "Invalid argument" setting key "net.core.somaxconn"
$ sysctl -w net.core.somaxconn=-100
error: "Invalid argument" setting key "net.core.somaxconn"

Based on a prior patch from Changli Gao.

Signed-off-by: Roman Gushchin <klamm@yandex-team.ru>
Reported-by: Changli Gao <xiaosuo@gmail.com>
Suggested-by: Eric Dumazet <edumazet@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agosis900: Fix the tx queue timeout issue
Denis Kirjanov [Fri, 2 Aug 2013 09:50:54 +0000 (13:50 +0400)]
sis900: Fix the tx queue timeout issue

[  198.720048] ------------[ cut here ]------------
[  198.720108] WARNING: CPU: 0 PID: 0 at net/sched/sch_generic.c:255 dev_watchdog+0x229/0x240()
[  198.720118] NETDEV WATCHDOG: eth0 (sis900): transmit queue 0 timed out
[  198.720125] Modules linked in: bridge stp llc dmfe sundance 3c59x sis900 mii
[  198.720159] CPU: 0 PID: 0 Comm: swapper Not tainted 3.11.0-rc3+ #12
[  198.720167] Hardware name: System Manufacturer System Name/TUSI-M, BIOS ASUS TUSI-M ACPI BIOS
Revision 1013 Beta 001 12/14/2001
[  198.720175]  000000ff c13fa6b9 c169ddcc c12208d6 c169ddf8 c1031e4d c1664a84 c169de24
[  198.720197]  00000000 c165f5ea 000000ff c13fa6b9 00000001 000000ff c1664a84 c169de10
[  198.720217]  c1031f13 00000009 c169de08 c1664a84 c169de24 c169de50 c13fa6b9 c165f5ea
[  198.720240] Call Trace:
[  198.720257]  [<c13fa6b9>] ? dev_watchdog+0x229/0x240
[  198.720274]  [<c12208d6>] dump_stack+0x16/0x20
[  198.720306]  [<c1031e4d>] warn_slowpath_common+0x7d/0xa0
[  198.720318]  [<c13fa6b9>] ? dev_watchdog+0x229/0x240
[  198.720330]  [<c1031f13>] warn_slowpath_fmt+0x33/0x40
[  198.720342]  [<c13fa6b9>] dev_watchdog+0x229/0x240
[  198.720357]  [<c103f158>] call_timer_fn+0x78/0x150
[  198.720369]  [<c103f0e0>] ? internal_add_timer+0x40/0x40
[  198.720381]  [<c13fa490>] ? dev_init_scheduler+0xa0/0xa0
[  198.720392]  [<c103f33f>] run_timer_softirq+0x10f/0x200
[  198.720412]  [<c103954f>] ? __do_softirq+0x6f/0x210
[  198.720424]  [<c13fa490>] ? dev_init_scheduler+0xa0/0xa0
[  198.720435]  [<c1039598>] __do_softirq+0xb8/0x210
[  198.720467]  [<c14b54d2>] ? _raw_spin_unlock+0x22/0x30
[  198.720484]  [<c1003245>] ? handle_irq+0x25/0xd0
[  198.720496]  [<c1039c0c>] irq_exit+0x9c/0xb0
[  198.720508]  [<c14bc9d7>] do_IRQ+0x47/0x94
[  198.720534]  [<c1056078>] ? hrtimer_start+0x28/0x30
[  198.720564]  [<c14bc8b1>] common_interrupt+0x31/0x38
[  198.720589]  [<c1008692>] ? default_idle+0x22/0xa0
[  198.720600]  [<c10083c7>] arch_cpu_idle+0x17/0x30
[  198.720631]  [<c106d23d>] cpu_startup_entry+0xcd/0x180
[  198.720643]  [<c14ae30a>] rest_init+0xaa/0xb0
[  198.720654]  [<c14ae260>] ? reciprocal_value+0x50/0x50
[  198.720668]  [<c17044e0>] ? repair_env_string+0x60/0x60
[  198.720679]  [<c1704bda>] start_kernel+0x29a/0x350
[  198.720690]  [<c17044e0>] ? repair_env_string+0x60/0x60
[  198.720721]  [<c1704269>] i386_start_kernel+0x39/0xa0
[  198.720729] ---[ end trace 81e0a6266f5c73a8 ]---
[  198.720740] eth0: Transmit timeout, status 00000204 00000000

timer routine checks the link status and if it's up calls
netif_carrier_on() allowing upper layer to start the tx queue
even if the auto-negotiation process is not finished.

Also remove ugly auto-negotiation check from the sis900_start_xmit()

CC: Duan Fugang <B38611@freescale.com>
CC: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Denis Kirjanov <kda@linux-powerpc.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMerge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland...
Linus Torvalds [Fri, 2 Aug 2013 21:58:30 +0000 (14:58 -0700)]
Merge tag 'rdma-for-linus' of git://git./linux/kernel/git/roland/infiniband

Pull infiniband/rdma fixes from Roland Dreier:
 - Fixes for the newly merged mlx5 hardware driver
 - Stack info leak fixes from Dan Carpenter
 - Fixes for pkey table handling with SR-IOV
 - A few other small things

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IPoIB: Fix pkey change flow for virtualization environments
  IPoIB: Make sure child devices use valid/proper pkeys
  IB/core: Create QP1 using the pkey index which contains the default pkey
  mlx5_core: Variable may be used uninitialized
  mlx5_core: Implement new initialization sequence
  mlx5_core: Fix use after free in mlx5_cmd_comp_handler()
  IB/mlx5: Fix stack info leak in mlx5_ib_alloc_ucontext()
  IB/mlx5: Fix error return code in init_one()
  IB/mlx4: Use default pkey when creating tunnel QPs
  RDMA/cma: Only call cma_save_ib_info() for CM REQs
  RDMA/cma: Fix accessing invalid private data for UD
  RDMA/cma: Fix gcc warning
  Revert "RDMA/nes: Fix compilation error when nes_debug is enabled"
  IB/qib: Add err_decode() call for ring dump
  RDMA/cxgb3: Fix stack info leak in iwch_create_cq()
  RDMA/nes: Fix info leaks in nes_create_qp() and nes_create_cq()
  RDMA/ocrdma: Fix several stack info leaks
  RDMA/cxgb4: Fix stack info leak in c4iw_create_qp()
  RDMA/ocrdma: Remove unused include

11 years agoMerge tag 'gpio-for-v3.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw...
Linus Torvalds [Fri, 2 Aug 2013 21:57:24 +0000 (14:57 -0700)]
Merge tag 'gpio-for-v3.11-3' of git://git./linux/kernel/git/linusw/linux-gpio

Pull GPIO fixes from Linus Walleij:
 "Yet another GPIO pull request, fixing the fix from the last one.  It
  turns out that fixing the boot path for device tree boots on OMAP
  breaks out antique systems (such as OMAP1) and we need to find a
  better way.  So we're reverting that "fix" for the moment and thinking
  about something better.

  Also fixing a build issue on the MSM driver"

* tag 'gpio-for-v3.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio_msm: Fix build error due to missing err.h
  Revert "gpio/omap: don't create an IRQ mapping for every GPIO on DT"
  Revert "gpio/omap: auto request GPIO as input if used as IRQ via DT"
  Revert "gpio/omap: fix build error when OF_GPIO is not defined."

11 years agonet: rtm_to_ifaddr: free ifa if ifa_cacheinfo processing fails
Daniel Borkmann [Fri, 2 Aug 2013 09:32:43 +0000 (11:32 +0200)]
net: rtm_to_ifaddr: free ifa if ifa_cacheinfo processing fails

Commit 5c766d642 ("ipv4: introduce address lifetime") leaves the ifa
resource that was allocated via inet_alloc_ifa() unfreed when returning
the function with -EINVAL. Thus, free it first via inet_free_ifa().

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Reviewed-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agor8169: remove "PHY reset until link up" log spam
Lekensteyn [Fri, 2 Aug 2013 08:36:55 +0000 (10:36 +0200)]
r8169: remove "PHY reset until link up" log spam

This message was added in commit a7154cb8 (June 2004, [PATCH] r8169:
link handling and phy reset rework) and is printed every ten seconds
when no cable is connected and runtime power management is disabled.
(Before that commit, "Reset RTL8169s PHY" would be printed instead.)

Signed-off-by: Peter Wu <lekensteyn@gmail.com>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: ethernet: cpsw: drop IRQF_DISABLED
Felipe Balbi [Fri, 2 Aug 2013 07:44:10 +0000 (10:44 +0300)]
net: ethernet: cpsw: drop IRQF_DISABLED

IRQF_DISABLED is a no-op by now and should be
removed.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Acked-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agohtb: fix sign extension bug
stephen hemminger [Fri, 2 Aug 2013 05:32:07 +0000 (22:32 -0700)]
htb: fix sign extension bug

When userspace passes a large priority value
the assignment of the unsigned value hopt->prio
to  signed int cl->prio causes cl->prio to become negative and the
comparison is with TC_HTB_NUMPRIO is always false.

The result is that HTB crashes by referencing outside
the array when processing packets. With this patch the large value
wraps around like other values outside the normal range.

See: https://bugzilla.kernel.org/show_bug.cgi?id=60669

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Fri, 2 Aug 2013 21:39:49 +0000 (14:39 -0700)]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc

Pull powerpc fixes from Ben Herrenschmidt:
 "Here is not quite a handful of powerpc fixes for rc3.

  The windfarm fix is a regression fix (though not a new one), the PMU
  interrupt rename is not a fix per-se but has been submitted a long
  time ago and I kept forgetting to put it in (it puts us back in sync
  with x86), the other perf bit is just about putting an API/ABI bit
  definition in the right place for userspace to consume, and finally,
  we have a fix for the VPHN (Virtual Partition Home Node) feature
  (notification that the hypervisor is moving nodes around) which could
  cause lockups so we may as well fix it now"

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/windfarm: Fix noisy slots-fan on Xserve (rm31)
  powerpc: VPHN topology change updates all siblings
  powerpc/perf: Export PERF_EVENT_CONFIG_EBB_SHIFT to userspace
  powerpc: Rename PMU interrupts from CNT to PMI

11 years agoMerge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Linus Torvalds [Fri, 2 Aug 2013 21:37:45 +0000 (14:37 -0700)]
Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm

Pull ARM fixes from Russell King:
 "I've thought long and hard about what to say for this pull request,
  and I really can't work out anything sane to say to summarise much of
  these commits.  The problem is, for most of these are, yet again, lots
  of small bits scattered around the place without any real overall
  theme to them"

Most notable is probably the kuser page helper improvements.

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm: (22 commits)
  ARM: Add .text annotations where required after __CPUINIT removal
  ARM: 7803/1: Fix deadlock scenario with smp_send_stop()
  ARM: make vectors page inaccessible from userspace
  ARM: move signal handlers into a vdso-like page
  ARM: allow kuser helpers to be removed from the vector page
  ARM: update FIQ support for relocation of vectors
  ARM: use linker magic for vectors and vector stubs
  ARM: move vector stubs
  ARM: poison memory between kuser helpers
  ARM: poison the vectors page
  ARM: 7801/1: v6: prevent gcc 4.5 from reordering extended CP15 reads above is_smp() test
  ARM: 7800/1: ARMv7-M: Fix name of NVIC handler function
  ARM: Fix sorting of machine- initializers
  ARM: 7791/1: a.out: remove partial a.out support
  ARM: 7790/1: Fix deferred mm switch on VIVT processors
  ARM: 7789/1: Do not run dummy_flush_tlb_a15_erratum() on non-Cortex-A15
  ARM: 7787/1: virt: ensure visibility of __boot_cpu_mode
  ARM: 7788/1: elf: fix lpae hwcap feature reporting in proc/cpuinfo
  ARM: 7786/1: hyp: fix macro parameterisation
  ARM: 7785/1: mm: restrict early_alloc to section-aligned memory
  ...

11 years agoMerge branch 'parisc-3.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/delle...
Linus Torvalds [Fri, 2 Aug 2013 21:36:32 +0000 (14:36 -0700)]
Merge branch 'parisc-3.11-rc4' of git://git./linux/kernel/git/deller/parisc-linux

Pull parisc updates from Helge Deller:
 "The majority of lines changed are due the addition of a defconfig for
  the C8000 machine.  Even the fix in parisc/kernel/cache.c file is
  actually ony a 10-line fix, but the change became bigger (and much
  nicer) to avoid errors of the checkpatch script.

  Here is the short-changelog:

  This round of parisc updates includes mostly fixes for the C8000
  workstation.  We have a new defconfig file for this machine, as well
  as fixes for it's serial port, the AGP driver and the cache routines
  to cope with the vmas of the FireGL card in a C8000.  The sys32.h
  header file was not used and as such it's now gone"

* 'parisc-3.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Fix interrupt routing for C8000 serial ports
  parisc: Remove arch/parisc/kernel/sys32.h header
  parisc: add defconfig for c8000 machine
  parisc: agp/parisc-agp: allow binding of user memory to the AGP GART
  parisc: Fix cache routines to ignore vma's with an invalid pfn

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Linus Torvalds [Fri, 2 Aug 2013 21:22:15 +0000 (14:22 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid

Pull HID fixes from Jiri Kosina:
 - fix hid-sony PS3 sixaxxis breakage from Benjamin Tissories
 - fix hidraw race condition from Yonghua Zheng
 - fix/bandaid for rare device enumeration problems of Logitech Unifying
   receivers from Nestor Lopez Casado

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: hidraw: fix improper mutex release
  HID: sony: fix HID mapping for PS3 sixaxis controller
  HID: hid-logitech-dj: querying_devices was never set
  HID: Revert "Revert "HID: Fix logitech-dj: missing Unifying device issue""

11 years agoMerge tag 'please-pull-fix-mce-regression' of git://git.kernel.org/pub/scm/linux...
Linus Torvalds [Fri, 2 Aug 2013 21:21:44 +0000 (14:21 -0700)]
Merge tag 'please-pull-fix-mce-regression' of git://git./linux/kernel/git/ras/ras

Pull MCE fix from Tony Luck:
 "Fix a regression in mce-severity.c"

* tag 'please-pull-fix-mce-regression' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
  x86/mce: Fix mce regression from recent cleanup

11 years agoMerge tag 'pci-v3.11-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaa...
Linus Torvalds [Fri, 2 Aug 2013 20:12:52 +0000 (13:12 -0700)]
Merge tag 'pci-v3.11-fixes-1' of git://git./linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:
 "Yinghai fixed a couple regressions: one resource assignment problem
  introduced in v3.10 that showed up with SR-IOV on powerpc, and another
  SR-IOV hot-remove issue related to refcounting changes we merged for
  v3.11.

  Yinghai is still working on another SR-IOV-related fix or two, which
  will be simpler if pciehp is non-modular, so I included the Kconfig
  changes now to get them in earlier.

  Finally, a minor fix for the ARM Marvell EBU host bridge driver that
  was merged for v3.11

  Hotplug:
      PCI: pciehp: Fix null pointer deref when hot-removing SR-IOV device
      PCI: hotplug: Convert to be builtin only, not modular
      PCI: pciehp: Convert pciehp to be builtin only, not modular

  Resource allocation:
      PCI: Retry allocation of only the resource type that failed

  ARM:
      PCI: mvebu: Disable prefetchable memory support in PCI-to-PCI bridge"

* tag 'pci-v3.11-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: mvebu: Disable prefetchable memory support in PCI-to-PCI bridge
  PCI: Retry allocation of only the resource type that failed
  PCI: pciehp: Convert pciehp to be builtin only, not modular
  PCI: hotplug: Convert to be builtin only, not modular
  PCI: pciehp: Fix null pointer deref when hot-removing SR-IOV device

11 years agoMerge tag 'pm+acpi-3.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Fri, 2 Aug 2013 19:21:32 +0000 (12:21 -0700)]
Merge tag 'pm+acpi-3.11-rc4' of git://git./linux/kernel/git/rafael/linux-pm

Pull ACPI and power management fixes from Rafael Wysocki:

 - Revert two cpuidle commits added during the 3.8 development cycle
   that turn out to have introduced a significant performance regression
   as requested by Jeremy Eder.

 - The recent patches that made the freezer less heavy-weight introduced
   a regression causing user-space-driven hibernation using the ioctl()
   interface to block indefinitely when the hibernate process executes
   try_to_freeze().  Fix from Colin Cross addresses this by adding a
   process flag to mark the hibernate/suspend process to inform the
   freezer that that process should be ignored.

 - One of the recent cpufreq reverts uncovered a problem in the core
   causing the cpufreq driver module refcount to become negative after a
   system suspend-resume cycle.  Fix from Rafael J Wysocki.

 - The evaluation of the ACPI battery _BIX method has never worked
   correctly, because the commit that added support for it forgot to
   take the "Revision" field in the return package into account.  As a
   result, the reading of battery info doesn't work at all on some
   systems, which is addressed by a fix from Lan Tianyu.

* tag 'pm+acpi-3.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  freezer: set PF_SUSPEND_TASK flag on tasks that call freeze_processes
  ACPI / battery: Fix parsing _BIX return value
  cpufreq: Fix cpufreq driver module refcount balance after suspend/resume
  Revert "cpuidle: Quickly notice prediction failure for repeat mode"
  Revert "cpuidle: Quickly notice prediction failure in general case"

11 years agoALSA: hda - Fix missing fixup for Mac Mini with STAC9221
Takashi Iwai [Thu, 1 Aug 2013 06:38:27 +0000 (08:38 +0200)]
ALSA: hda - Fix missing fixup for Mac Mini with STAC9221

A fixup for Apple Mac Mini was lost during the adaption to the generic
parser because the fallback for the generic ID 8384:7680 was dropped,
and it resulted in the silence output (and maybe other problems).

Unfortunately, just adding the missing subsystem ID wasn't enough, in
this case.  The subsystem ID of this machine is 0000:0100 (what Apple
thought...?), and since snd_hda_pick_fixup() doesn't take the vendor
id zero into account, the driver ignored this entry.  Now it's fixed
to regard the vendor id zero as a valid value.

Reported-and-tested-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: <stable@vger.kernel.org> [v3.9+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
11 years agomacvlan: handle set_promiscuity failures
Michael S. Tsirkin [Thu, 1 Aug 2013 10:50:10 +0000 (13:50 +0300)]
macvlan: handle set_promiscuity failures

It's quite unlikely that dev_set_promiscuity will fail,
but worth checking just in case.

Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agomacvlan: better mode validation
Michael S. Tsirkin [Thu, 1 Aug 2013 10:43:19 +0000 (13:43 +0300)]
macvlan: better mode validation

macvlan passthrough mode is special: it's not possible to switch to or
from it through a netlink command.

But if you try, the command will succeed, which is
confusing.

Validate input and return error to user.

Cc: Sridhar Samudrala <sri@us.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agotipc: fix oops when creating server socket fails
Ying Xue [Thu, 1 Aug 2013 12:29:18 +0000 (08:29 -0400)]
tipc: fix oops when creating server socket fails

When creation of TIPC internal server socket fails,
we get an oops with the following dump:

BUG: unable to handle kernel NULL pointer dereference at 0000000000000020
IP: [<ffffffffa0011f49>] tipc_close_conn+0x59/0xb0 [tipc]
PGD 13719067 PUD 12008067 PMD 0
Oops: 0000 [#1] SMP DEBUG_PAGEALLOC
Modules linked in: tipc(+)
CPU: 4 PID: 4340 Comm: insmod Not tainted 3.10.0+ #1
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007
task: ffff880014360000 ti: ffff88001374c000 task.ti: ffff88001374c000
RIP: 0010:[<ffffffffa0011f49>]  [<ffffffffa0011f49>] tipc_close_conn+0x59/0xb0 [tipc]
RSP: 0018:ffff88001374dc98  EFLAGS: 00010292
RAX: 0000000000000000 RBX: ffff880012ac09d8 RCX: 0000000000000000
RDX: 0000000000000046 RSI: 0000000000000001 RDI: ffff880014360000
RBP: ffff88001374dcb8 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffa0016fa0
R13: ffffffffa0017010 R14: ffffffffa0017010 R15: ffff880012ac09d8
FS:  0000000000000000(0000) GS:ffff880016600000(0063) knlGS:00000000f76668d0
CS:  0010 DS: 002b ES: 002b CR0: 000000008005003b
CR2: 0000000000000020 CR3: 0000000012227000 CR4: 00000000000006e0
Stack:
ffff88001374dcb8 ffffffffa0016fa0 0000000000000000 0000000000000001
ffff88001374dcf8 ffffffffa0012922 ffff88001374dce8 00000000ffffffea
ffffffffa0017100 0000000000000000 ffff8800134241a8 ffffffffa0017150
Call Trace:
[<ffffffffa0012922>] tipc_server_stop+0xa2/0x1b0 [tipc]
[<ffffffffa0009995>] tipc_subscr_stop+0x15/0x20 [tipc]
[<ffffffffa00130f5>] tipc_core_stop+0x1d/0x33 [tipc]
[<ffffffffa001f0d4>] tipc_init+0xd4/0xf8 [tipc]
[<ffffffffa001f000>] ? 0xffffffffa001efff
[<ffffffff8100023f>] do_one_initcall+0x3f/0x150
[<ffffffff81082f4d>] ? __blocking_notifier_call_chain+0x7d/0xd0
[<ffffffff810cc58a>] load_module+0x11aa/0x19c0
[<ffffffff810c8d60>] ? show_initstate+0x50/0x50
[<ffffffff8190311c>] ? retint_restore_args+0xe/0xe
[<ffffffff810cce79>] SyS_init_module+0xd9/0x110
[<ffffffff8190dc65>] sysenter_dispatch+0x7/0x1f
Code: 6c 24 70 4c 89 ef e8 b7 04 8f e1 8b 73 04 4c 89 e7 e8 7c 9e 32 e1 41 83 ac 24
b8 00 00 00 01 4c 89 ef e8 eb 0a 8f e1 48 8b 43 08 <4c> 8b 68 20 4d 8d a5 48 03 00
00 4c 89 e7 e8 04 05 8f e1 4c 89
RIP  [<ffffffffa0011f49>] tipc_close_conn+0x59/0xb0 [tipc]
RSP <ffff88001374dc98>
CR2: 0000000000000020
---[ end trace b02321f40e4269a3 ]---

We have the following call chain:

tipc_core_start()
    ret = tipc_subscr_start()
        ret = tipc_server_start(){
                  server->enabled = 1;
                  ret = tipc_open_listening_sock()
              }

I.e., the server->enabled flag is unconditionally set to 1, whatever
the return value of tipc_open_listening_sock().

This causes a crash when tipc_core_start() tries to clean up
resources after a failed initialization:

    if (ret == failed)
        tipc_subscr_stop()
            tipc_server_stop(){
                if (server->enabled)
                    tipc_close_conn(){
                        NULL reference of con->sock-sk
                        OOPS!
                }
            }

To avoid this, tipc_server_start() should only set server->enabled
to 1 in case of a succesful socket creation. In case of failure, it
should release all allocated resources before returning.

Problem introduced in commit c5fa7b3cf3cb22e4ac60485fc2dc187fe012910f
("tipc: introduce new TIPC server infrastructure") in v3.11-rc1.
Note that it won't be seen often; it takes a module load under memory
constrained conditions in order to trigger the failure condition.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: rename CONFIG_NET_LL_RX_POLL to CONFIG_NET_RX_BUSY_POLL
Cong Wang [Thu, 1 Aug 2013 03:10:25 +0000 (11:10 +0800)]
net: rename CONFIG_NET_LL_RX_POLL to CONFIG_NET_RX_BUSY_POLL

Eliezer renames several *ll_poll to *busy_poll, but forgets
CONFIG_NET_LL_RX_POLL, so in case of confusion, rename it too.

Cc: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: fix a compile error when CONFIG_NET_LL_RX_POLL is not set
Cong Wang [Thu, 1 Aug 2013 03:10:24 +0000 (11:10 +0800)]
net: fix a compile error when CONFIG_NET_LL_RX_POLL is not set

When CONFIG_NET_LL_RX_POLL is not set, I got:

net/socket.c: In function ‘sock_poll’:
net/socket.c:1165:4: error: implicit declaration of function ‘sk_busy_loop’ [-Werror=implicit-function-declaration]

Fix this by adding a nop when !CONFIG_NET_LL_RX_POLL.

Cc: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet/mlx4_core: VFs must ignore the enable_64b_cqe_eqe module param
Jack Morgenstein [Thu, 1 Aug 2013 16:55:01 +0000 (19:55 +0300)]
net/mlx4_core: VFs must ignore the enable_64b_cqe_eqe module param

Slaves get the 64B CQE/EQE state from QUERY_HCA, not from the module parameter.

If the parameter is set to zero, the slave outputs an incorrect/irrelevant
warning message that 64B CQEs/EQEs are supported but not enabled (even if the
hypervisor has enabled 64B CQEs/EQEs).

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet/mlx4_core: Don't give VFs MAC addresses which are derived from the PF MAC
Or Gerlitz [Thu, 1 Aug 2013 16:55:00 +0000 (19:55 +0300)]
net/mlx4_core: Don't give VFs MAC addresses which are derived from the PF MAC

If the user has not assigned a MAC address to a VM, then don't give it MAC which
is based on the PF one. The current derivation scheme is wrong and leads to VM
MAC collisions when the number of cards/hypervisors becomes big enough.

Instead, just give it zeros and let them figure out what to do with that.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoipv6: prevent race between address creation and removal
Jiri Benc [Thu, 1 Aug 2013 08:41:28 +0000 (10:41 +0200)]
ipv6: prevent race between address creation and removal

There's a race in IPv6 automatic addess assignment. The address is created
with zero lifetime when it's added to various address lists. Before it gets
assigned the correct lifetime, there's a window where a new address may be
configured. This causes the semi-initiated address to be deleted in
addrconf_verify.

This was discovered as a reference leak caused by concurrent run of
__ipv6_ifa_notify for both RTM_NEWADDR and RTM_DELADDR with the same
address.

Fix this by setting the lifetime before the address is added to
inet6_addr_lst.

A few notes:

1. In addrconf_prefix_rcv, by setting update_lft to zero, the
   if (update_lft) { ... } condition is no longer executed for newly
   created addresses. This is okay, as the ifp fields are set in
   ipv6_add_addr now and ipv6_ifa_notify is called (and has been called)
   through addrconf_dad_start.

2. The removal of the whole block under ifp->lock in inet6_addr_add is okay,
   too, as tstamp is initialized to jiffies in ipv6_add_addr.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoipv6: move peer_addr init into ipv6_add_addr()
Jiri Pirko [Thu, 1 Aug 2013 08:41:27 +0000 (10:41 +0200)]
ipv6: move peer_addr init into ipv6_add_addr()

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoipv6: update ip6_rt_last_gc every time GC is run
Michal Kubeček [Thu, 1 Aug 2013 08:04:24 +0000 (10:04 +0200)]
ipv6: update ip6_rt_last_gc every time GC is run

As pointed out by Eric Dumazet, net->ipv6.ip6_rt_last_gc should
hold the last time garbage collector was run so that we should
update it whenever fib6_run_gc() calls fib6_clean_all(), not only
if we got there from ip6_dst_gc().

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoipv6: prevent fib6_run_gc() contention
Michal Kubeček [Thu, 1 Aug 2013 08:04:14 +0000 (10:04 +0200)]
ipv6: prevent fib6_run_gc() contention

On a high-traffic router with many processors and many IPv6 dst
entries, soft lockup in fib6_run_gc() can occur when number of
entries reaches gc_thresh.

This happens because fib6_run_gc() uses fib6_gc_lock to allow
only one thread to run the garbage collector but ip6_dst_gc()
doesn't update net->ipv6.ip6_rt_last_gc until fib6_run_gc()
returns. On a system with many entries, this can take some time
so that in the meantime, other threads pass the tests in
ip6_dst_gc() (ip6_rt_last_gc is still not updated) and wait for
the lock. They then have to run the garbage collector one after
another which blocks them for quite long.

Resolve this by replacing special value ~0UL of expire parameter
to fib6_run_gc() by explicit "force" parameter to choose between
spin_lock_bh() and spin_trylock_bh() and call fib6_run_gc() with
force=false if gc_thresh is reached but not max_size.

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoPCI: mvebu: Disable prefetchable memory support in PCI-to-PCI bridge
Thomas Petazzoni [Thu, 1 Aug 2013 13:44:19 +0000 (15:44 +0200)]
PCI: mvebu: Disable prefetchable memory support in PCI-to-PCI bridge

The Marvell PCIe driver uses an emulated PCI-to-PCI bridge to be able
to dynamically set up MBus address decoding windows for PCI I/O and
memory regions depending on the PCI devices enumerated by Linux.

However, this emulated PCI-to-PCI bridge logic makes the Linux PCI
core believe that prefetchable memory regions are supported (because
the registers are read/write), while in fact no adress decoding window
is ever created for such regions. Since the Marvell MBus address
decoding windows do not distinguish memory regions and prefetchable
memory regions, this patch takes a simple approach: change the
PCI-to-PCI bridge emulation to let the Linux PCI core know that we
don't support prefetchable memory regions.

To achieve this, we simply make the prefetchable memory base a
read-only register that always returns 0. Reading/writing all the
other prefetchable memory related registers has no effect.

This problem was originally reported by Finn Hoffmann
<finn@uni-bremen.de>, who couldn't get a RTL8111/8168B PCI NIC working
on the NSA310 Kirkwood platform after updating to 3.11-rc. The problem
was that the PCI-to-PCI bridge emulation was making the Linux PCI core
believe that we support prefetchable memory, so the Linux PCI core was
only filling the prefetchable memory base and limit registers, which
does not lead to a MBus window being created. The below patch has been
confirmed by Finn Hoffmann to fix his problem on Kirkwood, and has
otherwise been successfully tested on the Armada XP GP platform with a
e1000e PCIe NIC and a Marvell SATA PCIe card.

Reported-by: Finn Hoffmann <finn@uni-bremen.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agoMerge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville...
David S. Miller [Thu, 1 Aug 2013 19:57:52 +0000 (12:57 -0700)]
Merge branch 'for-davem' of git://git./linux/kernel/git/linville/wireless

John W. Linville says:

====================
This pull request is intended for the 3.11 stream.  It is a bit
larger than usual, as it includes pulls from most of my feeder trees
as well...

For the Bluetooth bits, Gustavo says:

"A few fixes and devices ID additions for 3.11:

 * There are 4 new ath3k device ids
 * Fixed stack memory usage in ath3k.
 * Fixed the init process of BlueFRITZ! devices, they were failing to init
   due to an unsupported command we sent.
 * Fixed wrong use of PTR_ERR in btusb code that was preventing intel devices
   to work properly.
 * Fixed race condition between hci_register_dev() and hci_dev_open() that
   could cause a NULL pointer dereference.
 * Fixed race condition that could call hci_req_cmd_complete() and make some
   devices to fail as showed in the log added to the commit message."

Regarding the NFC bits, Samuel says:

"We have:

1) A build failure fix for the NCI SPI transport layer due to a
   missing CRC_CCITT Kconfig dependency.

2) A netlink command rename: CMD_FW_UPLOAD was merged during the 3.11
   merge window but the typical terminology for loading a firmware to a
   target is firmware download rather than upload. In order to avoid any
   confusion in a file exported to userspace, we rename this command to
   CMD_FW_DOWNLOAD."

Samuel's item #2 isn't strictly a fix, but it seems safe and should
avoid confusion in the future.

As for the mac80211 bits, Johannes says:

"I only have three fixes this time, a fix for a suspend regression, a
patch correcting the initiator in regulatory code and one fix for mesh
station powersave."

With respect to the iwlwifi bits, Johannes says:

"We have a scan fix for passive channels, a new PCI device ID for an old
device, a NIC reset fix, an RF-Kill fix, a fix for powersave when GO
interfaces are present as well as an aggregation session fix (for a
corner case) and a workaround for a firmware design issue - it only
supports a single GTK in D3."

Bringing-up the rear with the Atheros trees, Kalle says:

"Geert Uytterhoeven fixed an ath10k build problem when NO_DMA=y. I added
a missing MAINTAINERS entry for ath10k and updated ath6kl git tree
location."

Along with the above...

Arend van Spriel fixes a brcmfmac WARNING when unplugging the device.

Avinash Patil proves a couple of minor mwifiex fixes relating to P2P mode.

Luciano Coelho updates the MAINTAINERS entry for the wilink drivers.

Stanislaw Gruszka brings an rt2x00 fix for a queue start/stop problem.

Stone Piao fixes another mwifiex problem, a command timeout related to P2P mode.

Tomasz Moń corrects an endian problem in mwifiex.

I'll remind my feeder maintainers to slowdown the patchflow.
Beyond that, please let me know if there are problems!
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMerge branch 'security-fixes' into fixes
Russell King [Thu, 1 Aug 2013 19:51:13 +0000 (20:51 +0100)]
Merge branch 'security-fixes' into fixes