John Crispin [Sun, 20 Jan 2013 21:05:30 +0000 (22:05 +0100)]
MIPS: ralink: adds Kbuild files
Add the Kbuild symbols and Makefiles needed to actually build the ralink code
from this series
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4899/
John Crispin [Tue, 22 Jan 2013 19:19:33 +0000 (20:19 +0100)]
MIPS: ralink: adds rt305x devicetree
This adds the devicetree file that describes the rt305x evaluation kit.
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4898/
John Crispin [Sun, 20 Jan 2013 21:03:46 +0000 (22:03 +0100)]
MIPS: ralink: adds support for RT305x SoC family
Add support code for rt3050, rt3052, rt3350, rt3352 and rt5350 SOC.
The code detects the SoC and registers the clk / pinmux settings.
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4896/
John Crispin [Sun, 20 Jan 2013 21:02:55 +0000 (22:02 +0100)]
MIPS: ralink: adds early_printk support
Add the code needed to make early printk work.
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4897/
John Crispin [Sun, 20 Jan 2013 21:02:01 +0000 (22:02 +0100)]
MIPS: ralink: adds OF code
Until there is a generic MIPS way of handing the DTB over from bootloader to
kernel we rely on a built in devicetrees. The OF code also remaps those register
ranges that we use global in our drivers.
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4895/
John Crispin [Sun, 20 Jan 2013 21:01:29 +0000 (22:01 +0100)]
MIPS: ralink: adds clkdev code
These SoCs have a limited number of fixed rate clocks. Add support for the
clk and clkdev api.
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4894/
John Crispin [Sun, 20 Jan 2013 21:01:05 +0000 (22:01 +0100)]
MIPS: ralink: adds prom and cmdline code
Add minimal code to handle commandlines.
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4892/
John Crispin [Sun, 20 Jan 2013 21:00:57 +0000 (22:00 +0100)]
MIPS: ralink: adds reset code
Resetting these SoCs requires no real magic. The code is straight forward.
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4891/
John Crispin [Sun, 20 Jan 2013 21:00:50 +0000 (22:00 +0100)]
MIPS: ralink: adds irq code
All of the Ralink Wifi SoC currently supported by this series share the same
interrupt controller (INTC).
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4890/
John Crispin [Mon, 21 Jan 2013 17:25:59 +0000 (18:25 +0100)]
MIPS: ralink: adds include files
Before we start adding the platform code we add the common include files.
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4893/
John Crispin [Fri, 20 Jul 2012 16:58:34 +0000 (18:58 +0200)]
Document: devicetree: add OF documents for lantiq serial port
Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: devicetree-discuss@lists.ozlabs.org
Gabor Juhos [Tue, 29 Jan 2013 16:13:17 +0000 (16:13 +0000)]
MIPS: ath79: simplify MISC IRQ handling
The current code uses multiple if statements for
demultiplexing the different interrupt sources.
Additionally, the MISC interrupt controller has
32 interrupt sources and the current code does not
handles all of them.
Get rid of the if statements and process all interrupt
sources in a loop to fix these issues.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4874/
Signed-off-by: John Crispin <blogic@openwrt.org>
Gabor Juhos [Tue, 29 Jan 2013 08:19:13 +0000 (08:19 +0000)]
MIPS: ath79: simplify ath79_gpio_function_* routines
Make ath79_gpio_function_{en,dis}able to be wrappers
around ath79_gpio_function_setup.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4871/
Signed-off-by: John Crispin <blogic@openwrt.org>
Gabor Juhos [Tue, 29 Jan 2013 08:19:12 +0000 (08:19 +0000)]
MIPS: ath79: fix GPIO function selection for AR934x SoCs
GPIO function selection is not working on the AR934x
SoCs because the offset of the function selection
register is different on those.
Add a helper routine which returns the correct
register address based on the SoC type, and use
that in the 'ath79_gpio_function_*' routines.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4870/
Signed-off-by: John Crispin <blogic@openwrt.org>
Steven J. Hill [Fri, 7 Dec 2012 03:51:04 +0000 (03:51 +0000)]
MIPS: Add new GIC clocksource.
Add new clocksource that uses the counter present on the MIPS
Global Interrupt Controller.
Signed-off-by: Steven J. Hill <sjhill@mips.com>
Patchwork: http://patchwork.linux-mips.org/patch/4681/
Signed-off-by: John Crispin <blogic@openwrt.org>
Steven J. Hill [Fri, 7 Dec 2012 03:53:52 +0000 (03:53 +0000)]
MIPS: dsp: Simplify the DSP macros.
Simplify the DSP macros for vanilla (non-microMIPS) kernels and
toolchains that do not support the DSP ASEs.
Signed-off-by: Steven J. Hill <sjhill@mips.com>
Patchwork: http://patchwork.linux-mips.org/patch/4687/
Signed-off-by: John Crispin <blogic@openwrt.org>
Steven J. Hill [Fri, 7 Dec 2012 03:53:29 +0000 (03:53 +0000)]
MIPS: dsp: Support toolchains without DSP ASE and microMIPS.
Add macros to support the DSP ASE with microMIPS kernels when the
toolchain does not have support.
Signed-off-by: Steven J. Hill <sjhill@mips.com>
Patchwork: http://patchwork.linux-mips.org/patch/4686/
Signed-off-by: John Crispin <blogic@openwrt.org>
Steven J. Hill [Thu, 3 Jan 2013 19:01:52 +0000 (19:01 +0000)]
MIPS: dsp: Add assembler support for DSP ASEs.
Newer toolchains support the DSP and DSP Rev2 instructions. This patch
performs a check for that support and adds compiler and assembler
flags for only the files that need use those instructions.
Signed-off-by: Steven J. Hill <sjhill@mips.com>
Acked-by: Florian Fainelli <florian@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4752/
Signed-off-by: John Crispin <blogic@openwrt.org>
Steven J. Hill [Fri, 7 Dec 2012 03:51:35 +0000 (03:51 +0000)]
MIPS: Add support for the M14KEc core.
Signed-off-by: Steven J. Hill <sjhill@mips.com>
Patchwork: http://patchwork.linux-mips.org/patch/4682/
Signed-off-by: John Crispin <blogic@openwrt.org>
Steven J. Hill [Fri, 7 Dec 2012 04:15:03 +0000 (04:15 +0000)]
MIPS: Clean-ups for MIPS Technologies Inc. generic header file.
Clean up standard header text and remove unused #define.
Signed-off-by: Steven J. Hill <sjhill@mips.com>
Patchwork: http://patchwork.linux-mips.org/patch/4703/
Signed-off-by: John Crispin <blogic@openwrt.org>
Jayachandran C [Wed, 16 Jan 2013 11:12:41 +0000 (11:12 +0000)]
MIPS: PCI: Multi-node PCI support for Netlogic XLP
On a multi-chip XLP board, each node can have 4 PCIe links. Update
XLP PCI code to initialize PCIe on all the nodes.
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/4803/
Signed-off-by: John Crispin <blogic@openwrt.org>
Jayachandran C [Mon, 14 Jan 2013 15:12:01 +0000 (15:12 +0000)]
MIPS: Netlogic: Fix for quad-XLP boot
On multi-chip boards, the first core on slave SoCs may take much
more time to wakeup. Add code to wait for the core to come up before
proceeding with the rest of the boot up.
Update xlp_wakeup_core to also skip the boot node and the boot CPU
initialization which is already complete.
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/4783/
Signed-off-by: John Crispin <blogic@openwrt.org>
Jayachandran C [Mon, 14 Jan 2013 15:12:00 +0000 (15:12 +0000)]
MIPS: Netlogic: use preset loops per jiffy
Doing calibrate delay on a hardware thread will be inaccurate since
it depends on the load on other threads in the core. It will also
slow down the boot process when done for 128 hardware threads. Switch
to a pre-computed loops per jiffy based on the core frequency. The
value is computed based on the core frequency and roughly matches the
value calculated by calibrate_delay().
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/4791/
Signed-off-by: John Crispin <blogic@openwrt.org>
Jayachandran C [Mon, 14 Jan 2013 15:11:59 +0000 (15:11 +0000)]
MIPS: Netlogic: No hazards needed for XLR/XLS
TLB and COP0 hazards are handled in hardware for Netlogic XLR/XLS
SoCs. Update hazards.h to pick more optimal set of definitions when
compiling for XLR/XLS.
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/4788/
Signed-off-by: John Crispin <blogic@openwrt.org>
Jayachandran C [Mon, 14 Jan 2013 15:11:58 +0000 (15:11 +0000)]
MIPS: PCI: Prevent hang on XLP reg read
Reading PCI extended register at 0x255 on a bridge will hang if there
is no device connected on the link. Make PCI read routine skip this
register.
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/4789/
Signed-off-by: John Crispin <blogic@openwrt.org>
Jayachandran C [Mon, 14 Jan 2013 15:11:57 +0000 (15:11 +0000)]
MIPS: Netlogic: Use PIC timer as a clocksource
The XLR/XLS/XLP PIC has a 8 countdown timers which run at the PIC
frequencey. One of these can be used as a clocksource to provide
timestamps that is common across cores. This can be used in place
of the count/compare clocksource which is per-CPU.
On XLR/XLS PIC registers are 32-bit, so we just use the lower 32-bits
of the PIC counter. On XLP, the whole 64-bit can be used.
Provide common macros and functions for PIC timer registers on XLR/XLS
and XLP, and use them to register a PIC clocksource.
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/4786/
Signed-off-by: John Crispin <blogic@openwrt.org>
Jayachandran C [Mon, 14 Jan 2013 15:11:56 +0000 (15:11 +0000)]
MIPS: Netlogic: Split XLP L1 i-cache among threads
Since we now use r4k cache code for Netlogic XLP, it is
better to split L1 icache among the active threads, so that
threads won't step on each other while flushing icache.
The L1 dcache is already split among the threads in the core.
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/4787/
Signed-off-by: John Crispin <blogic@openwrt.org>
Jayachandran C [Wed, 16 Jan 2013 11:12:40 +0000 (11:12 +0000)]
MIPS: PCI: Byteswap not needed in little-endian mode
Rename function xlp_enable_pci_bswap() to xlp_config_pci_bswap(), which
is a better description for its functionality. When compiled in
big-endian mode, xlp_config_pci_bswap() will configure the PCIe links
to byteswap. In little-endian mode, no swap configuration is needed
for the PCIe controller, and the function is empty.
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/4802/
Signed-off-by: John Crispin <blogic@openwrt.org>
Jayachandran C [Mon, 14 Jan 2013 15:11:54 +0000 (15:11 +0000)]
MIPS: Netlogic: Optimize EIMR/EIRR accesses in 32-bit
Provide functions ack_c0_eirr(), set_c0_eimr(), clear_c0_eimr()
and read_c0_eirr_and_eimr() that do the EIMR and EIRR operations
and update the interrupt handling code to use these functions.
Also, use the EIMR register functions to mask interrupts in the
irq code.
The 64-bit interrupt request and mask registers (EIRR and EIMR) are
accessed when the interrupts are off, and the common operations are
to set or clear a bit in these registers. Using the 64-bit c0 access
functions for these operations is not optimal in 32-bit, because it
will disable/restore interrupts and split/join the 64-bit value during
each register access.
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/4790/
Signed-off-by: John Crispin <blogic@openwrt.org>
Jayachandran C [Mon, 14 Jan 2013 15:11:53 +0000 (15:11 +0000)]
MIPS: Netlogic: add XLS6xx to FMN config
Add support for XLS6xx CPUs to the Fast Message Network (FMN)
configuration.
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/4785/
Signed-off-by: John Crispin <blogic@openwrt.org>
John Crispin [Sat, 19 Jan 2013 08:54:27 +0000 (08:54 +0000)]
MIPS: lantiq: rework external irq code
This code makes the irqs used by the EIU loadable from the DT. Additionally we
add a helper that allows the pinctrl layer to map external irqs to real irq
numbers.
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4818/
John Crispin [Sat, 19 Jan 2013 08:54:26 +0000 (08:54 +0000)]
MIPS: lantiq: improve pci reset gpio handling
We need to make sure that the reset gpio is available and also set a sane
default state.
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4817/
John Crispin [Sat, 19 Jan 2013 08:54:25 +0000 (08:54 +0000)]
MIPS: lantiq: add GPHY clock gate bits
Explicitly enable the clock gate of the internal GPHYs found on xrx200.
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4816/
John Crispin [Sat, 19 Jan 2013 08:54:24 +0000 (08:54 +0000)]
MIPS: lantiq: adds static clock for PP32
The Lantiq DSL SoCs have an internal networking processor. Add code to read
the static clock rate.
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4815/
John Crispin [Sat, 19 Jan 2013 08:54:23 +0000 (08:54 +0000)]
MIPS: lantiq: trivial typo fix
"nodes" is written with a single "s"
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4814/
John Crispin [Fri, 11 Jan 2013 21:44:10 +0000 (22:44 +0100)]
MIPS: show correct cpu name for 24KEc
Make sure 24KEc is properly identified inside /proc/cpuinfo
Signed-off-by: John Crispin <blogic@openwrt.org>
Hauke Mehrtens [Thu, 6 Dec 2012 21:25:05 +0000 (21:25 +0000)]
MIPS: BCM47XX: use fallback sprom var for board_{rev,type}
An SoC normally do not define path variables for board_rev and
board_type and the Broadcom SDK also uses the nvram values without a
prefix in such cases. Do the same to fill these sprom attributes from
nvram and do not leave them empty, because brcmsmac do not like this.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Patchwork: http://patchwork.linux-mips.org/patch/4679/
Signed-off-by: John Crispin <blogic@openwrt.org>
Hauke Mehrtens [Wed, 26 Dec 2012 20:06:18 +0000 (20:06 +0000)]
MIPS: BCM47XX: select NO_EXCEPT_FILL
The kernel is loaded to 0x80001000 so there is some space left for the
exception handlers and the kernel do not have to reserve some extra
space for them.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Patchwork: http://patchwork.linux-mips.org/patch/4747/
Signed-off-by: John Crispin <blogic@openwrt.org>
Hauke Mehrtens [Wed, 26 Dec 2012 20:06:17 +0000 (20:06 +0000)]
MIPS: BCM47XX: select BOOT_RAW
All the boot loaders I have seen are booting the kernel in raw mode by
default. CFE seems to support elf kernel images too, but the default
case is raw for the devices I know of. Select this option to make the
kernel boot on most of the devices with the default options.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Patchwork: http://patchwork.linux-mips.org/patch/4746/
Signed-off-by: John Crispin <blogic@openwrt.org>
Hauke Mehrtens [Wed, 26 Dec 2012 19:53:26 +0000 (19:53 +0000)]
MIPS: BCM47XX: trim the nvram values for parsing
Some nvram values on some devices have a newline character at the end
of the value, that caused read errors. Trim the string before reading
the number.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Patchwork: http://patchwork.linux-mips.org/patch/4745/
Signed-off-by: John Crispin <blogic@openwrt.org>
Hauke Mehrtens [Wed, 26 Dec 2012 19:51:14 +0000 (19:51 +0000)]
MIPS: BCM47XX: add bcm47xx prefix in front of nvram function names
The nvram functions are exported and used by some normal drivers. To
prevent name clashes with ofter parts of the kernel code add a bcm47xx_
prefix in front of the function names and the header file name.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Patchwork: http://patchwork.linux-mips.org/patch/4744/
Signed-off-by: John Crispin <blogic@openwrt.org>
Hauke Mehrtens [Wed, 26 Dec 2012 19:51:13 +0000 (19:51 +0000)]
MIPS: BCM47XX: handle different nvram sizes
The old code just worked for nvram with a size of 0x8000 bytes. This
patch adds support for reading nvram from partitions of 0xF000 and
0x10000 bytes.
There is just 32KB space for the nvram, but most devices do not use the
full size and this code reads the first 32KB in that case and prints a
warning.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Patchwork: http://patchwork.linux-mips.org/patch/4743/
Signed-off-by: John Crispin <blogic@openwrt.org>
Hauke Mehrtens [Wed, 26 Dec 2012 19:51:12 +0000 (19:51 +0000)]
MIPS: BCM47XX: rename early_nvram_init to nvram_init
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Patchwork: http://patchwork.linux-mips.org/patch/4742/
Signed-off-by: John Crispin <blogic@openwrt.org>
Hauke Mehrtens [Wed, 26 Dec 2012 19:51:11 +0000 (19:51 +0000)]
MIPS: BCM47XX: nvram add nand flash support
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Patchwork: http://patchwork.linux-mips.org/patch/4741/
Signed-off-by: John Crispin <blogic@openwrt.org>
Hauke Mehrtens [Wed, 26 Dec 2012 19:51:10 +0000 (19:51 +0000)]
MIPS: BCM47XX: return error when init of nvram failed
This makes it possible to handle the case of not being able to read the
nvram ram. This could happen when the code searching for the specific
flash chip have not run jet.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Patchwork: http://patchwork.linux-mips.org/patch/4740/
Signed-off-by: John Crispin <blogic@openwrt.org>
Hauke Mehrtens [Wed, 26 Dec 2012 19:51:09 +0000 (19:51 +0000)]
MIPS: BCM47XX: use common error codes in nvram reads
Instead of using our own error codes use some common codes.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Patchwork: http://patchwork.linux-mips.org/patch/4739/
Signed-off-by: John Crispin <blogic@openwrt.org>
Rafał Miłecki [Wed, 26 Dec 2012 08:29:17 +0000 (08:29 +0000)]
MIPS: bcm47xx: separate functions finding flash window addr
Also check if parallel flash is present at all before accessing it and
add support for serial flash on BCMA bus.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Patchwork: http://patchwork.linux-mips.org/patch/4738/
Signed-off-by: John Crispin <blogic@openwrt.org>
Linus Torvalds [Fri, 8 Feb 2013 21:20:39 +0000 (08:20 +1100)]
Linux 3.8-rc7
Linus Torvalds [Fri, 8 Feb 2013 21:01:18 +0000 (08:01 +1100)]
Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM fixes from Russell King:
"I was going to hold these off until v3.8 was out, and send them with a
stable tag, but as everyone else is pushing much bigger fixes which
Linus is accepting, let's save people from the hastle of having to
patch v3.8 back into working or use a stable kernel.
Looking at the diffstat, this really is high value for its size; this
is miniscule compared to how the -rc6 to tip diffstat currently looks.
So, four patches in this set:
- Punit Agrawal reports that the kernel no longer boots on MPCore due
to a new assumption made in the GIC code which isn't true of
earlier GIC designs. This is the biggest change in this set.
- Punit's boot log also revealed a bunch of WARN_ON() dumps caused by
the DT-ification of the GIC support without fixing up non-DT
Realview - which now sees a greater number of interrupts than it
did before.
- A fix for the DMA coherent code from Marek which uses the wrong
check for atomic allocations; this can result in spinlock lockups
or other nasty effects.
- A fix from Will, which will affect all Android based platforms if
not applied (which use the 2G:2G VM split) - this causes
particularly 'make' to misbehave unless this bug is fixed."
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7641/1: memory: fix broken mmap by ensuring TASK_UNMAPPED_BASE is aligned
ARM: DMA mapping: fix bad atomic test
ARM: realview: ensure that we have sufficient IRQs available
ARM: GIC: fix GIC cpumask initialization
Linus Torvalds [Fri, 8 Feb 2013 20:55:24 +0000 (07:55 +1100)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
1) Revert iwlwifi reclaimed packet tracking, it causes problems for a
bunch of folks. From Emmanuel Grumbach.
2) Work limiting code in brcmsmac wifi driver can clear tx status
without processing the event. From Arend van Spriel.
3) rtlwifi USB driver processes wrong SKB, fix from Larry Finger.
4) l2tp tunnel delete can race with close, fix from Tom Parkin.
5) pktgen_add_device() failures are not checked at all, fix from Cong
Wang.
6) Fix unintentional removal of carrier off from tun_detach(),
otherwise we confuse userspace, from Michael S. Tsirkin.
7) Don't leak socket reference counts and ubufs in vhost-net driver,
from Jason Wang.
8) vmxnet3 driver gets it's initial carrier state wrong, fix from Neil
Horman.
9) Protect against USB networking devices which spam the host with 0
length frames, from Bjørn Mork.
10) Prevent neighbour overflows in ipv6 for locally destined routes,
from Marcelo Ricardo. This is the best short-term fix for this, a
longer term fix has been implemented in net-next.
11) L2TP uses ipv4 datagram routines in it's ipv6 code, whoops. This
mistake is largely because the ipv6 functions don't even have some
kind of prefix in their names to suggest they are ipv6 specific.
From Tom Parkin.
12) Check SYN packet drops properly in tcp_rcv_fastopen_synack(), from
Yuchung Cheng.
13) Fix races and TX skb freeing bugs in via-rhine's NAPI support, from
Francois Romieu and your's truly.
14) Fix infinite loops and divides by zero in TCP congestion window
handling, from Eric Dumazet, Neal Cardwell, and Ilpo Järvinen.
15) AF_PACKET tx ring handling can leak kernel memory to userspace, fix
from Phil Sutter.
16) Fix error handling in ipv6 GRE tunnel transmit, from Tommi Rantala.
17) Protect XEN netback driver against hostile frontend putting garbage
into the rings, don't leak pages in TX GOP checking, and add proper
resource releasing in error path of xen_netbk_get_requests(). From
Ian Campbell.
18) SCTP authentication keys should be cleared out and released with
kzfree(), from Daniel Borkmann.
19) L2TP is a bit too clever trying to maintain skb->truesize, and ends
up corrupting socket memory accounting to the point where packet
sending is halted indefinitely. Just remove the adjustments
entirely, they aren't really needed. From Eric Dumazet.
20) ATM Iphase driver uses a data type with the same name as the S390
headers, rename to fix the build. From Heiko Carstens.
21) Fix a typo in copying the inner network header offset from one SKB
to another, from Pravin B Shelar.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (56 commits)
net: sctp: sctp_endpoint_free: zero out secret key data
net: sctp: sctp_setsockopt_auth_key: use kzfree instead of kfree
atm/iphase: rename fregt_t -> ffreg_t
net: usb: fix regression from FLAG_NOARP code
l2tp: dont play with skb->truesize
net: sctp: sctp_auth_key_put: use kzfree instead of kfree
netback: correct netbk_tx_err to handle wrap around.
xen/netback: free already allocated memory on failure in xen_netbk_get_requests
xen/netback: don't leak pages on failure in xen_netbk_tx_check_gop.
xen/netback: shutdown the ring if it contains garbage.
net: qmi_wwan: add more Huawei devices, including E320
net: cdc_ncm: add another Huawei vendor specific device
ipv6/ip6_gre: fix error case handling in ip6gre_tunnel_xmit()
tcp: fix for zero packets_in_flight was too broad
brcmsmac: rework of mac80211 .flush() callback operation
ssb: unregister gpios before unloading ssb
bcma: unregister gpios before unloading bcma
rtlwifi: Fix scheduling while atomic bug
net: usbnet: fix tx_dropped statistics
tcp: ipv6: Update MIB counters for drops
...
David S. Miller [Fri, 8 Feb 2013 19:55:08 +0000 (14:55 -0500)]
Merge branch 'sctp_keys'
Daniel Borkmann says:
====================
Cryptographically used keys should be zeroed out when our session
ends resp. memory is freed, thus do not leave them somewhere in the
memory.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Fri, 8 Feb 2013 03:04:35 +0000 (03:04 +0000)]
net: sctp: sctp_endpoint_free: zero out secret key data
On sctp_endpoint_destroy, previously used sensitive keying material
should be zeroed out before the memory is returned, as we already do
with e.g. auth keys when released.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Fri, 8 Feb 2013 03:04:34 +0000 (03:04 +0000)]
net: sctp: sctp_setsockopt_auth_key: use kzfree instead of kfree
In sctp_setsockopt_auth_key, we create a temporary copy of the user
passed shared auth key for the endpoint or association and after
internal setup, we free it right away. Since it's sensitive data, we
should zero out the key before returning the memory back to the
allocator. Thus, use kzfree instead of kfree, just as we do in
sctp_auth_key_put().
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Heiko Carstens [Fri, 8 Feb 2013 00:19:11 +0000 (00:19 +0000)]
atm/iphase: rename fregt_t -> ffreg_t
We have conflicting type qualifiers for "freg_t" in s390's ptrace.h and the
iphase atm device driver, which causes the compile error below.
Unfortunately the s390 typedef can't be renamed, since it's a user visible api,
nor can I change the include order in s390 code to avoid the conflict.
So simply rename the iphase typedef to a new name. Fixes this compile error:
In file included from drivers/atm/iphase.c:66:0:
drivers/atm/iphase.h:639:25: error: conflicting type qualifiers for 'freg_t'
In file included from next/arch/s390/include/asm/ptrace.h:9:0,
from next/arch/s390/include/asm/lowcore.h:12,
from next/arch/s390/include/asm/thread_info.h:30,
from include/linux/thread_info.h:54,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:50,
from include/linux/seqlock.h:29,
from include/linux/time.h:5,
from include/linux/stat.h:18,
from include/linux/module.h:10,
from drivers/atm/iphase.c:43:
next/arch/s390/include/uapi/asm/ptrace.h:197:3: note: previous declaration of 'freg_t' was here
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: chas williams - CONTRACTOR <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
Will Deacon [Fri, 8 Feb 2013 11:52:29 +0000 (12:52 +0100)]
ARM: 7641/1: memory: fix broken mmap by ensuring TASK_UNMAPPED_BASE is aligned
We have received multiple reports of mmap failures when running with a
2:2 vm split. These manifest as either -EINVAL with a non page-aligned
address (ending 0xaaa) or a SEGV, depending on the application. The
issue is commonly observed in children of make, which appears to use
bottom-up mmap (assumedly because it changes the stack rlimit).
Further investigation reveals that this regression was triggered by
394ef6403abc ("mm: use vm_unmapped_area() on arm architecture"), whereby
TASK_UNMAPPED_BASE is no longer page-aligned for bottom-up mmap, causing
get_unmapped_area to choke on misaligned addressed.
This patch fixes the problem by defining TASK_UNMAPPED_BASE in terms of
TASK_SIZE and explicitly aligns the result to 16M, matching the other
end of the heap.
Acked-by: Nicolas Pitre <nico@linaro.org>
Reported-by: Steve Capper <steve.capper@arm.com>
Reported-by: Jean-Francois Moine <moinejf@free.fr>
Reported-by: Christoffer Dall <cdall@cs.columbia.edu>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Wed, 30 Jan 2013 23:55:35 +0000 (23:55 +0000)]
ARM: DMA mapping: fix bad atomic test
Realview fails to boot with this warning:
BUG: spinlock lockup suspected on CPU#0, init/1
lock: 0xcf8bde10, .magic:
dead4ead, .owner: init/1, .owner_cpu: 0
Backtrace:
[<
c00185d8>] (dump_backtrace+0x0/0x10c) from [<
c03294e8>] (dump_stack+0x18/0x1c) r6:
cf8bde10 r5:
cf83d1c0 r4:
cf8bde10 r3:
cf83d1c0
[<
c03294d0>] (dump_stack+0x0/0x1c) from [<
c018926c>] (spin_dump+0x84/0x98)
[<
c01891e8>] (spin_dump+0x0/0x98) from [<
c0189460>] (do_raw_spin_lock+0x100/0x198)
[<
c0189360>] (do_raw_spin_lock+0x0/0x198) from [<
c032cbac>] (_raw_spin_lock+0x3c/0x44)
[<
c032cb70>] (_raw_spin_lock+0x0/0x44) from [<
c01c9224>] (pl011_console_write+0xe8/0x11c)
[<
c01c913c>] (pl011_console_write+0x0/0x11c) from [<
c002aea8>] (call_console_drivers.clone.7+0xdc/0x104)
[<
c002adcc>] (call_console_drivers.clone.7+0x0/0x104) from [<
c002b320>] (console_unlock+0x2e8/0x454)
[<
c002b038>] (console_unlock+0x0/0x454) from [<
c002b8b4>] (vprintk_emit+0x2d8/0x594)
[<
c002b5dc>] (vprintk_emit+0x0/0x594) from [<
c0329718>] (printk+0x3c/0x44)
[<
c03296dc>] (printk+0x0/0x44) from [<
c002929c>] (warn_slowpath_common+0x28/0x6c)
[<
c0029274>] (warn_slowpath_common+0x0/0x6c) from [<
c0029304>] (warn_slowpath_null+0x24/0x2c)
[<
c00292e0>] (warn_slowpath_null+0x0/0x2c) from [<
c0070ab0>] (lockdep_trace_alloc+0xd8/0xf0)
[<
c00709d8>] (lockdep_trace_alloc+0x0/0xf0) from [<
c00c0850>] (kmem_cache_alloc+0x24/0x11c)
[<
c00c082c>] (kmem_cache_alloc+0x0/0x11c) from [<
c00bb044>] (__get_vm_area_node.clone.24+0x7c/0x16c)
[<
c00bafc8>] (__get_vm_area_node.clone.24+0x0/0x16c) from [<
c00bb7b8>] (get_vm_area_caller+0x48/0x54)
[<
c00bb770>] (get_vm_area_caller+0x0/0x54) from [<
c0020064>] (__alloc_remap_buffer.clone.15+0x38/0xb8)
[<
c002002c>] (__alloc_remap_buffer.clone.15+0x0/0xb8) from [<
c0020244>] (__dma_alloc+0x160/0x2c8)
[<
c00200e4>] (__dma_alloc+0x0/0x2c8) from [<
c00204d8>] (arm_dma_alloc+0x88/0xa0)[<
c0020450>] (arm_dma_alloc+0x0/0xa0) from [<
c00beb00>] (dma_pool_alloc+0xcc/0x1a8)
[<
c00bea34>] (dma_pool_alloc+0x0/0x1a8) from [<
c01a9d14>] (pl08x_fill_llis_for_desc+0x28/0x568)
[<
c01a9cec>] (pl08x_fill_llis_for_desc+0x0/0x568) from [<
c01aab8c>] (pl08x_prep_slave_sg+0x258/0x3b0)
[<
c01aa934>] (pl08x_prep_slave_sg+0x0/0x3b0) from [<
c01c9f74>] (pl011_dma_tx_refill+0x140/0x288)
[<
c01c9e34>] (pl011_dma_tx_refill+0x0/0x288) from [<
c01ca748>] (pl011_start_tx+0xe4/0x120)
[<
c01ca664>] (pl011_start_tx+0x0/0x120) from [<
c01c54a4>] (__uart_start+0x48/0x4c)
[<
c01c545c>] (__uart_start+0x0/0x4c) from [<
c01c632c>] (uart_start+0x2c/0x3c)
[<
c01c6300>] (uart_start+0x0/0x3c) from [<
c01c795c>] (uart_write+0xcc/0xf4)
[<
c01c7890>] (uart_write+0x0/0xf4) from [<
c01b0384>] (n_tty_write+0x1c0/0x3e4)
[<
c01b01c4>] (n_tty_write+0x0/0x3e4) from [<
c01acfe8>] (tty_write+0x144/0x240)
[<
c01acea4>] (tty_write+0x0/0x240) from [<
c01ad17c>] (redirected_tty_write+0x98/0xac)
[<
c01ad0e4>] (redirected_tty_write+0x0/0xac) from [<
c00c371c>] (vfs_write+0xbc/0x150)
[<
c00c3660>] (vfs_write+0x0/0x150) from [<
c00c39c0>] (sys_write+0x4c/0x78)
[<
c00c3974>] (sys_write+0x0/0x78) from [<
c0014460>] (ret_fast_syscall+0x0/0x3c)
This happens because the DMA allocation code is not respecting atomic
allocations correctly.
GFP flags should not be tested for GFP_ATOMIC to determine if an
atomic allocation is being requested. GFP_ATOMIC is not a flag but
a value. The GFP bitmask flags are all prefixed with __GFP_.
The rest of the kernel tests for __GFP_WAIT not being set to indicate
an atomic allocation. We need to do the same.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Wed, 30 Jan 2013 23:54:26 +0000 (23:54 +0000)]
ARM: realview: ensure that we have sufficient IRQs available
Realview EB with a rev B MPcore tile results in lots of warnings at
boot because it can't allocate enough IRQs. Fix this by increasing
the number of available IRQs.
WARNING: at /home/rmk/git/linux-rmk/arch/arm/common/gic.c:757 gic_init_bases+0x12c/0x2ec()
Cannot allocate irq_descs @ IRQ96, assuming pre-allocated
Modules linked in:
Backtrace:
[<
c00185d8>] (dump_backtrace+0x0/0x10c) from [<
c03294e8>] (dump_stack+0x18/0x1c) r6:
000002f5 r5:
c042c62c r4:
c044ff40 r3:
c045f240
[<
c03294d0>] (dump_stack+0x0/0x1c) from [<
c00292c8>] (warn_slowpath_common+0x54/0x6c)
[<
c0029274>] (warn_slowpath_common+0x0/0x6c) from [<
c0029384>] (warn_slowpath_fmt+0x38/0x40)
[<
c002934c>] (warn_slowpath_fmt+0x0/0x40) from [<
c042c62c>] (gic_init_bases+0x12c/0x2ec)
[<
c042c500>] (gic_init_bases+0x0/0x2ec) from [<
c042cdc8>] (gic_init_irq+0x8c/0xd8)
[<
c042cd3c>] (gic_init_irq+0x0/0xd8) from [<
c042827c>] (init_IRQ+0x1c/0x24)
[<
c0428260>] (init_IRQ+0x0/0x24) from [<
c04256c8>] (start_kernel+0x1a4/0x300)
[<
c0425524>] (start_kernel+0x0/0x300) from [<
70008070>] (0x70008070)
---[ end trace
1b75b31a2719ed1c ]---
------------[ cut here ]------------
WARNING: at /home/rmk/git/linux-rmk/kernel/irq/irqdomain.c:234 irq_domain_add_legacy+0x80/0x140()
Modules linked in:
Backtrace:
[<
c00185d8>] (dump_backtrace+0x0/0x10c) from [<
c03294e8>] (dump_stack+0x18/0x1c) r6:
000000ea r5:
c0081a38 r4:
00000000 r3:
c045f240
[<
c03294d0>] (dump_stack+0x0/0x1c) from [<
c00292c8>] (warn_slowpath_common+0x54/0x6c)
[<
c0029274>] (warn_slowpath_common+0x0/0x6c) from [<
c0029304>] (warn_slowpath_null+0x24/0x2c)
[<
c00292e0>] (warn_slowpath_null+0x0/0x2c) from [<
c0081a38>] (irq_domain_add_legacy+0x80/0x140)
[<
c00819b8>] (irq_domain_add_legacy+0x0/0x140) from [<
c042c64c>] (gic_init_bases+0x14c/0x2ec)
[<
c042c500>] (gic_init_bases+0x0/0x2ec) from [<
c042cdc8>] (gic_init_irq+0x8c/0xd8)
[<
c042cd3c>] (gic_init_irq+0x0/0xd8) from [<
c042827c>] (init_IRQ+0x1c/0x24)
[<
c0428260>] (init_IRQ+0x0/0x24) from [<
c04256c8>] (start_kernel+0x1a4/0x300)
[<
c0425524>] (start_kernel+0x0/0x300) from [<
70008070>] (0x70008070)
---[ end trace
1b75b31a2719ed1d ]---
------------[ cut here ]------------
WARNING: at /home/rmk/git/linux-rmk/arch/arm/common/gic.c:762 gic_init_bases+0x170/0x2ec()
Modules linked in:
Backtrace:
[<
c00185d8>] (dump_backtrace+0x0/0x10c) from [<
c03294e8>] (dump_stack+0x18/0x1c) r6:
000002fa r5:
c042c670 r4:
00000000 r3:
c045f240
[<
c03294d0>] (dump_stack+0x0/0x1c) from [<
c00292c8>] (warn_slowpath_common+0x54/0x6c)
[<
c0029274>] (warn_slowpath_common+0x0/0x6c) from [<
c0029304>] (warn_slowpath_null+0x24/0x2c)
[<
c00292e0>] (warn_slowpath_null+0x0/0x2c) from [<
c042c670>] (gic_init_bases+0x170/0x2ec)
[<
c042c500>] (gic_init_bases+0x0/0x2ec) from [<
c042cdc8>] (gic_init_irq+0x8c/0xd8)
[<
c042cd3c>] (gic_init_irq+0x0/0xd8) from [<
c042827c>] (init_IRQ+0x1c/0x24)
[<
c0428260>] (init_IRQ+0x0/0x24) from [<
c04256c8>] (start_kernel+0x1a4/0x300)
[<
c0425524>] (start_kernel+0x0/0x300) from [<
70008070>] (0x70008070)
---[ end trace
1b75b31a2719ed1e ]---
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Wed, 30 Jan 2013 23:49:57 +0000 (23:49 +0000)]
ARM: GIC: fix GIC cpumask initialization
Punit Agrawal reports:
> I was trying to boot 3.8-rc5 on Realview EB 11MPCore using
> realview-smp_defconfig as a starting point but the kernel failed to
> progress past the log below (config attached).
>
> Pawel suggested I try reverting
384a290283f - "ARM: gic: use a private
> mapping for CPU target interfaces" that you've authored. With this
> commit reverted the kernel boots.
>
> I am not quite sure why the commit breaks 11MPCore but Pawel (cc'd)
> might be able to shed light on that.
Some early GIC implementations return zero for the first distributor
CPU routing register. This means we can't rely on that telling us
which CPU interface we're connected to. We know that these platforms
implement PPIs for IRQs 29-31 - but we shouldn't assume that these
will always be populated.
So, instead, scan for a non-zero CPU routing register in the first
32 IRQs and use that as our CPU mask.
Reported-by: Punit Agrawal <punit.agrawal@arm.com>
Reviewed-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Linus Torvalds [Fri, 8 Feb 2013 08:46:26 +0000 (19:46 +1100)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm regression fix from Dave Airlie:
"This one fixes a sleep while locked regression that was introduced
earlier in 3.8."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/ttm: fix fence locking in ttm_buffer_object_transfer, 2nd try
Lucas Stach [Thu, 7 Feb 2013 16:18:39 +0000 (16:18 +0000)]
net: usb: fix regression from FLAG_NOARP code
In commit
6509141f9c2ba74df6cc72ec35cd1865276ae3a4 ("usbnet: add new
flag FLAG_NOARP for usb net devices"), the newly added flag NOARP was
using an already defined value, which broke drivers using flag
MULTI_PACKET.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Thu, 7 Feb 2013 14:00:34 +0000 (14:00 +0000)]
l2tp: dont play with skb->truesize
Andrew Savchenko reported a DNS failure and we diagnosed that
some UDP sockets were unable to send more packets because their
sk_wmem_alloc was corrupted after a while (tx_queue column in
following trace)
$ cat /proc/net/udp
sl local_address rem_address st tx_queue rx_queue tr tm->when retrnsmt uid timeout inode ref pointer drops
...
459:
00000000:0270
00000000:0000 07
00000000:
00000000 00:
00000000 00000000 0 0 4507 2
ffff88003d612380 0
466:
00000000:0277
00000000:0000 07
00000000:
00000000 00:
00000000 00000000 0 0 4802 2
ffff88003d613180 0
470:
076A070A:007B
00000000:0000 07
FFFF4600:
00000000 00:
00000000 00000000 123 0 5552 2
ffff880039974380 0
470:
010213AC:007B
00000000:0000 07
00000000:
00000000 00:
00000000 00000000 0 0 4986 2
ffff88003dbd3180 0
470:
010013AC:007B
00000000:0000 07
00000000:
00000000 00:
00000000 00000000 0 0 4985 2
ffff88003dbd2e00 0
470:
00FCA8C0:007B
00000000:0000 07
FFFFFB00:
00000000 00:
00000000 00000000 0 0 4984 2
ffff88003dbd2a80 0
...
Playing with skb->truesize is tricky, especially when
skb is attached to a socket, as we can fool memory charging.
Just remove this code, its not worth trying to be ultra
precise in xmit path.
Reported-by: Andrew Savchenko <bircoph@gmail.com>
Tested-by: Andrew Savchenko <bircoph@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Thu, 7 Feb 2013 00:55:37 +0000 (00:55 +0000)]
net: sctp: sctp_auth_key_put: use kzfree instead of kfree
For sensitive data like keying material, it is common practice to zero
out keys before returning the memory back to the allocator. Thus, use
kzfree instead of kfree.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 8 Feb 2013 04:37:36 +0000 (23:37 -0500)]
Merge branch 'fixes' of git://git./linux/kernel/git/jesse/openvswitch into openvswitch
Jesse Gross says:
====================
One bug fix for net/3.8 for a long standing problem that was reported a few
times recently.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 8 Feb 2013 04:31:47 +0000 (23:31 -0500)]
Merge branch 'netback'
Ian Campbell says:
====================
The Xen netback implementation contains a couple of flaws which can
allow a guest to cause a DoS in the backend domain, potentially
affecting other domains in the system.
CVE-2013-0216 is a failure to sanity check the ring producer/consumer
pointers which can allow a guest to cause netback to loop for an
extended period preventing other work from occurring.
CVE-2013-0217 is a memory leak on an error path which is guest
triggerable.
The following series contains the fixes for these issues, as previously
included in Xen Security Advisory 39:
http://lists.xen.org/archives/html/xen-announce/2013-02/msg00001.html
Changes in v2:
- Typo and block comment format fixes
- Added stable Cc
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Ian Campbell [Wed, 6 Feb 2013 23:41:38 +0000 (23:41 +0000)]
netback: correct netbk_tx_err to handle wrap around.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Jan Beulich <JBeulich@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ian Campbell [Wed, 6 Feb 2013 23:41:37 +0000 (23:41 +0000)]
xen/netback: free already allocated memory on failure in xen_netbk_get_requests
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Matthew Daley [Wed, 6 Feb 2013 23:41:36 +0000 (23:41 +0000)]
xen/netback: don't leak pages on failure in xen_netbk_tx_check_gop.
Signed-off-by: Matthew Daley <mattjd@gmail.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Jan Beulich <JBeulich@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ian Campbell [Wed, 6 Feb 2013 23:41:35 +0000 (23:41 +0000)]
xen/netback: shutdown the ring if it contains garbage.
A buggy or malicious frontend should not be able to confuse netback.
If we spot anything which is not as it should be then shutdown the
device and don't try to continue with the ring in a potentially
hostile state. Well behaved and non-hostile frontends will not be
penalised.
As well as making the existing checks for such errors fatal also add a
new check that ensures that there isn't an insane number of requests
on the ring (i.e. more than would fit in the ring). If the ring
contains garbage then previously is was possible to loop over this
insane number, getting an error each time and therefore not generating
any more pending requests and therefore not exiting the loop in
xen_netbk_tx_build_gops for an externded period.
Also turn various netdev_dbg calls which no precipitate a fatal error
into netdev_err, they are rate limited because the device is shutdown
afterwards.
This fixes at least one known DoS/softlockup of the backend domain.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Jan Beulich <JBeulich@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Fri, 8 Feb 2013 01:22:30 +0000 (12:22 +1100)]
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/rusty/linux
Pull virtio fix from Rusty Russell:
"Obviously I forgot to push this before linux.conf.au..."
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
virtio_console: Don't access uninitialized data.
Linus Torvalds [Fri, 8 Feb 2013 01:15:14 +0000 (12:15 +1100)]
Merge tag 'rdma-for-linus' of git://git./linux/kernel/git/roland/infiniband
Pull IB regression fixes from Roland Dreier:
- Fix mlx4 VFs not working on old guests because of 64B CQE changes
- Fix ill-considered sparse fix for qib
- Fix IPoIB crash due to skb double destruct introduced in 3.8-rc1
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB/qib: Fix for broken sparse warning fix
mlx4_core: Fix advertisement of wrong PF context behaviour
IPoIB: Fix crash due to skb double destruct
Linus Torvalds [Fri, 8 Feb 2013 01:06:46 +0000 (12:06 +1100)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
"We've got corner cases for updating i_size that ceph was hitting,
error handling for quotas when we run out of space, a very subtle
snapshot deletion race, a crash while removing devices, and one
deadlock between subvolume creation and the sb_internal code (thanks
lockdep)."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: move d_instantiate outside the transaction during mksubvol
Btrfs: fix EDQUOT handling in btrfs_delalloc_reserve_metadata
Btrfs: fix possible stale data exposure
Btrfs: fix missing i_size update
Btrfs: fix race between snapshot deletion and getting inode
Btrfs: fix missing release of the space/qgroup reservation in start_transaction()
Btrfs: fix wrong sync_writers decrement in btrfs_file_aio_write()
Btrfs: do not merge logged extents if we've removed them from the tree
btrfs: don't try to notify udev about missing devices
Linus Torvalds [Fri, 8 Feb 2013 01:00:44 +0000 (12:00 +1100)]
Merge tag 'pinctrl-for-v3.8-late' of git://git./linux/kernel/git/linusw/linux-pinctrl
Pull late pinctrl fixes from Linus Walleij:
"Two patches appeared as of late, one was completely news to me, the
other one was rotated in -next for the next merge window but turned
out to be a showstopper.
- Exynos Kconfig fixup
- SIRF DT translation bug"
* tag 'pinctrl-for-v3.8-late' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: sirf: replace of_gpio_simple_xlate by sirf specific of_xlate
pinctrl: exynos: change PINCTRL_EXYNOS option
Linus Torvalds [Fri, 8 Feb 2013 00:55:27 +0000 (11:55 +1100)]
Merge tag 'stable/for-linus-3.8-rc6-tag' of git://git./linux/kernel/git/konrad/xen
Pull Xen fixes from Konrad Rzeszutek Wilk:
"This has two fixes. One is a security fix wherein we would spam the
kernel printk buffer if one of the guests was misbehaving. The other
is much tamer and it was us only checking for one type of error from
the IRQ subsystem (when allocating new IRQs) instead of for all of
them.
- Fix an IRQ allocation where we only check for a specific error (-1).
- CVE-2013-0231 / XSA-43. Make xen-pciback rate limit error messages
from xen_pcibk_enable_msi{,x}()"
* tag 'stable/for-linus-3.8-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen: fix error handling path if xen_allocate_irq_dynamic fails
xen-pciback: rate limit error messages from xen_pcibk_enable_msi{,x}()
Linus Torvalds [Fri, 8 Feb 2013 00:52:53 +0000 (11:52 +1100)]
Merge tag 'regulator-v3.8-rc6' of git://git./linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"Mostly driver specific fixes here, though one of them uncovered the
issue Stephen Warren fixed with multiple OF matches getting upset due
to a lack of cleanup."
* tag 'regulator-v3.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: s2mps11: fix incorrect register for buck10
regulator: clear state each invocation of of_regulator_match
regulator: max8997: Fix using wrong dev argument at various places
regulator: max77686: Fix using wrong dev argument at various places
regulator: max8907: Fix using wrong dev argument for calling of_regulator_match
regulator: max8998: fix incorrect min_uV value for ldo10
regulator: tps65910: Fix using wrong dev argument for calling of_regulator_match
regulator: tps65217: Fix using wrong dev argument for calling of_regulator_match
Daniel Vetter [Mon, 14 Jan 2013 14:08:14 +0000 (15:08 +0100)]
drm/ttm: fix fence locking in ttm_buffer_object_transfer, 2nd try
This fixes up
commit
e8e89622ed361c46bf90ba4828e685a8b603f7e5
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue Dec 18 22:25:11 2012 +0100
drm/ttm: fix fence locking in ttm_buffer_object_transfer
which leaves behind a might_sleep in atomic context, since the
fence_lock spinlock is held over a kmalloc(GFP_KERNEL) call. The fix
is to revert the above commit and only take the lock where we need it,
around the call to ->sync_obj_ref.
v2: Fixup things noticed by Maarten Lankhorst:
- Brown paper bag locking bug.
- No need for kzalloc if we clear the entire thing on the next line.
- check for bo->sync_obj (totally unlikely race, but still someone
else could have snuck in) and clear fbo->sync_obj if it's cleared
already.
Reported-by: Dave Airlie <airlied@gmail.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Sjur Brændeland [Mon, 21 Jan 2013 23:20:26 +0000 (09:50 +1030)]
virtio_console: Don't access uninitialized data.
Don't access uninitialized work-queue when removing device.
The work queue is initialized only if the device multi-queue.
So don't call cancel_work unless this is a multi-queue device.
This fixes the following panic:
Kernel panic - not syncing: BUG!
Call Trace:
62031b28: [<
6026085d>] panic+0x16b/0x2d3
62031b30: [<
6004ef5e>] flush_work+0x0/0x1d7
62031b60: [<
602606f2>] panic+0x0/0x2d3
62031b68: [<
600333b0>] memcpy+0x0/0x140
62031b80: [<
6002d58a>] unblock_signals+0x0/0x84
62031ba0: [<
602609c5>] printk+0x0/0xa0
62031bd8: [<
60264e51>] __mutex_unlock_slowpath+0x13d/0x148
62031c10: [<
6004ef5e>] flush_work+0x0/0x1d7
62031c18: [<
60050234>] try_to_grab_pending+0x0/0x17e
62031c38: [<
6004e984>] get_work_gcwq+0x71/0x8f
62031c48: [<
60050539>] __cancel_work_timer+0x5b/0x115
62031c78: [<
628acc85>] unplug_port+0x0/0x191 [virtio_console]
62031c98: [<
6005061c>] cancel_work_sync+0x12/0x14
62031ca8: [<
628ace96>] virtcons_remove+0x80/0x15c [virtio_console]
62031ce8: [<
628191de>] virtio_dev_remove+0x1e/0x7e [virtio]
62031d08: [<
601cf242>] __device_release_driver+0x75/0xe4
62031d28: [<
601cf2dd>] device_release_driver+0x2c/0x40
62031d48: [<
601ce0dd>] driver_unbind+0x7d/0xc6
62031d88: [<
601cd5d9>] drv_attr_store+0x27/0x29
62031d98: [<
60115f61>] sysfs_write_file+0x100/0x14d
62031df8: [<
600b737d>] vfs_write+0xcb/0x184
62031e08: [<
600b58b8>] filp_close+0x88/0x94
62031e38: [<
600b7686>] sys_write+0x59/0x88
62031e88: [<
6001ced1>] handle_syscall+0x5d/0x80
62031ea8: [<
60030a74>] userspace+0x405/0x531
62031f08: [<
600d32cc>] sys_dup+0x0/0x5e
62031f28: [<
601b11d6>] strcpy+0x0/0x18
62031f38: [<
600be46c>] do_execve+0x10/0x12
62031f48: [<
600184c7>] run_init_process+0x43/0x45
62031fd8: [<
60019a91>] new_thread_handler+0xba/0xbc
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Cc: stable@kernel.org
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Linus Torvalds [Wed, 6 Feb 2013 21:43:30 +0000 (08:43 +1100)]
Merge tag 'sound-3.8' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Just a couple of build regression fixes for ASoC fsl stuff. It
doesn't look too trivial, but neither intrusive, so hopefully I can
avoid your curse..."
Hey, Takashi has a good track record, I think he gets a pass..
* tag 'sound-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ASoC: fsl: fix snd-soc-imx-pcm module build
Revert "ASoC: fsl: fix multiple definition of init_module"
Linus Torvalds [Wed, 6 Feb 2013 21:38:33 +0000 (08:38 +1100)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block layer updates from Jens Axboe:
"I've got a few bits pending for 3.8 final, that I better get sent out.
It's all been sitting for a while, I consider it safe.
It contains:
- Two bug fixes for mtip32xx, fixing a driver hang and a crash.
- A few-liner protocol error fix for drbd.
- A few fixes for the xen block front/back driver, fixing a potential
data corruption issue.
- A race fix for disk_clear_events(), causing spurious warnings. Out
of the Chrome OS base.
- A deadlock fix for disk_clear_events(), moving it to the a
unfreezable workqueue. Also from the Chrome OS base."
* 'for-linus' of git://git.kernel.dk/linux-block:
drbd: fix potential protocol error and resulting disconnect/reconnect
mtip32xx: fix for crash when the device surprise removed during rebuild
mtip32xx: fix for driver hang after a command timeout
block: prevent race/cleanup
block: remove deadlock in disk_clear_events
xen-blkfront: handle bvecs with partial data
llist/xen-blkfront: implement safe version of llist_for_each_entry
xen-blkback: implement safe iterator for the list of persistent grants
Bjørn Mork [Wed, 6 Feb 2013 05:22:08 +0000 (05:22 +0000)]
net: qmi_wwan: add more Huawei devices, including E320
Adding new class/subclass/protocol combinations based on the GPLed
out-of-tree Huawei driver. One of these has already appeared on a
device labelled as "E320".
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bjørn Mork [Wed, 6 Feb 2013 05:21:53 +0000 (05:21 +0000)]
net: cdc_ncm: add another Huawei vendor specific device
Adding a new vendor specific class/subclass/protocol combination
for CDC NCM devices based on information from a GPLed out-of-tree
driver from Huawei.
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tommi Rantala [Wed, 6 Feb 2013 03:24:02 +0000 (03:24 +0000)]
ipv6/ip6_gre: fix error case handling in ip6gre_tunnel_xmit()
ip6gre_tunnel_xmit() is leaking the skb when we hit this error branch,
and the -1 return value from this function is bogus. Use the error
handling we already have in place in ip6gre_tunnel_xmit() for this error
case to fix this.
Signed-off-by: Tommi Rantala <tt.rantala@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ilpo Järvinen [Mon, 4 Feb 2013 02:14:25 +0000 (02:14 +0000)]
tcp: fix for zero packets_in_flight was too broad
There are transients during normal FRTO procedure during which
the packets_in_flight can go to zero between write_queue state
updates and firing the resulting segments out. As FRTO processing
occurs during that window the check must be more precise to
not match "spuriously" :-). More specificly, e.g., when
packets_in_flight is zero but FLAG_DATA_ACKED is true the problematic
branch that set cwnd into zero would not be taken and new segments
might be sent out later.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Tested-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 6 Feb 2013 19:51:14 +0000 (14:51 -0500)]
Merge branch 'wireless'
John W. Linville says:
====================
Please consider this pull request for the 3.8 stream...
Included is a bluetooth pull. Gustavo says:
"Two simple fixes for 3.8. One of the patches fixes a situation
where the connection wasn't terminated if a timeout ocurrs for LE
an SCO connections. The other fixes prevent NULL dereference in the
SMP code, it is a security fix as well."
Along with those...
Hauke Mehrtens provides a couple of ssb and bcma bus fixes that
prevent oopses when unloading those modules.
Larry Finger provides and rtlwifi fix to avoid a "scheduling while
atomic" bug.
Last but certainly not least, Arend van Spriel bring a brcmsmac fix that
reworks the mac80211 .flush() callback in order to avoid the dreaded
brcms_c_wait_for_tx_completion warnings. This one looks a little
large, but I think it is safe and isolated to brcmsmac in any case.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
John W. Linville [Wed, 6 Feb 2013 18:55:44 +0000 (13:55 -0500)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless into for-davem
Chris Mason [Wed, 6 Feb 2013 17:06:02 +0000 (12:06 -0500)]
Btrfs: move d_instantiate outside the transaction during mksubvol
Dave Sterba triggered a lockdep complaint about lock ordering
between the sb_internal lock and the cleaner semaphore.
btrfs_lookup_dentry() checks for orphans if we're looking up
the inode for a subvolume, and subvolume creation is triggering
the lookup with a transaction running.
This commit moves the d_instantiate after the transaction closes.
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wei Liu [Thu, 31 Jan 2013 14:46:56 +0000 (14:46 +0000)]
xen: fix error handling path if xen_allocate_irq_dynamic fails
It is possible that the call to xen_allocate_irq_dynamic() returns negative
number other than -1.
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Jan Beulich [Wed, 6 Feb 2013 15:30:38 +0000 (10:30 -0500)]
xen-pciback: rate limit error messages from xen_pcibk_enable_msi{,x}()
... as being guest triggerable (e.g. by invoking
XEN_PCI_OP_enable_msi{,x} on a device not being MSI/MSI-X capable).
This is CVE-2013-0231 / XSA-43.
Also make the two messages uniform in both their wording and severity.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Takashi Iwai [Wed, 6 Feb 2013 14:16:58 +0000 (15:16 +0100)]
Merge branch 'fix/fsl' of git://git./linux/kernel/git/broonie/sound into for-linus-uncursed
We need this for fixing build error regressions in soc/fsl.
Jan Schmidt [Mon, 28 Jan 2013 06:26:00 +0000 (23:26 -0700)]
Btrfs: fix EDQUOT handling in btrfs_delalloc_reserve_metadata
When btrfs_qgroup_reserve returned a failure, we were missing a counter
operation for BTRFS_I(inode)->outstanding_extents++, leading to warning
messages about outstanding extents and space_info->bytes_may_use != 0.
Additionally, the error handling code didn't take into account that we
dropped the inode lock which might require more cleanup.
Luckily, all the cleanup code we need is already there and can be shared
with reserve_metadata_bytes, which is exactly what this patch does.
Reported-by: Lev Vainblat <lev@zadarastorage.com>
Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Mark Brown [Wed, 6 Feb 2013 11:28:53 +0000 (11:28 +0000)]
Merge remote-tracking branch 'regulator/fix/tps65910' into tmp
Mark Brown [Wed, 6 Feb 2013 11:28:52 +0000 (11:28 +0000)]
Merge remote-tracking branch 'regulator/fix/tps65217' into tmp
Mark Brown [Wed, 6 Feb 2013 11:28:51 +0000 (11:28 +0000)]
Merge remote-tracking branch 'regulator/fix/s2mps11' into tmp
Mark Brown [Wed, 6 Feb 2013 11:28:51 +0000 (11:28 +0000)]
Merge remote-tracking branch 'regulator/fix/of' into tmp
Mark Brown [Wed, 6 Feb 2013 11:28:50 +0000 (11:28 +0000)]
Merge remote-tracking branch 'regulator/fix/max8998' into tmp
Mark Brown [Wed, 6 Feb 2013 11:28:49 +0000 (11:28 +0000)]
Merge remote-tracking branch 'regulator/fix/max8997' into tmp
Mark Brown [Wed, 6 Feb 2013 11:28:48 +0000 (11:28 +0000)]
Merge remote-tracking branch 'regulator/fix/max8907' into tmp
Mark Brown [Wed, 6 Feb 2013 11:28:48 +0000 (11:28 +0000)]
Merge remote-tracking branch 'regulator/fix/max77686' into tmp
Chris Mason [Wed, 6 Feb 2013 00:24:44 +0000 (19:24 -0500)]
Merge git://git./linux/kernel/git/josef/btrfs-next.git for-chris into for-linus
Linus Torvalds [Tue, 5 Feb 2013 21:36:12 +0000 (08:36 +1100)]
Merge branch 'v4l_for_linus' of git://git./linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
"For a regression fix on a few radio drivers that were preventing radio
TX to work on those devices"
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] radio: set vfl_dir correctly to fix modulator regression
Linus Torvalds [Tue, 5 Feb 2013 21:32:32 +0000 (08:32 +1100)]
Merge tag 'usb-3.8-rc6' of git://git./linux/kernel/git/gregkh/usb
Pull USB fixes from Greg Kroah-Hartman:
"Here are a few tiny USB fixes for 3.8-rc6.
Nothing major here, some host controller bug fixes to resolve a number
of bugs that people have reported, and a bunch of additional device
ids are added to a number of drivers (which caused code to be deleted
from the usb-storage driver, always nice)"
* tag 'usb-3.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (22 commits)
USB: storage: optimize to match the Huawei USB storage devices and support new switch command
USB: storage: Define a new macro for USB storage match rules
USB: ftdi_sio: add Zolix FTDI PID
USB: option: add Changhong CH690
USB: ftdi_sio: add PID/VID entries for ELV WS 300 PC II
USB: add OWL CM-160 support to cp210x driver
USB: EHCI: fix bug in scheduling periodic split transfers
USB: EHCI: fix for leaking isochronous data
USB: option: add support for Telit LE920
USB: qcserial: add Telit Gobi QDL device
USB: EHCI: fix timer bug affecting port resume
USB: UHCI: notify usbcore about port resumes
USB: EHCI: notify usbcore about port resumes
USB: add usb_hcd_{start,end}_port_resume
USB: EHCI: unlink one async QH at a time
USB: EHCI: remove ASS/PSS polling timeout
usb: Using correct way to clear usb3.0 device's remote wakeup feature.
usb: Prevent dead ports when xhci is not enabled
USB: XHCI: fix memory leak of URB-private data
drivers: xhci: fix incorrect bit test
...
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