Commit Graph

442225 Commits

Author SHA1 Message Date
Andrzej Pietrasiewicz 7419485f19 usb: gadget: configfs: OS Extended Properties descriptors support
Add handling of OS Extended Properties descriptors from configfs interface.
One kind of "OS Descriptors" are "Extended Properties" descriptors, which
need to be specified per interface or per group of interfaces described
by an IAD. This patch adds support for creating subdirectories
in interface.<n> directory located in the function's directory.
Names of subdirectories created become names of properties.
Each property contains two attributes: "type" and "data".
The type can be a numeric value 1..7 while data is a blob interpreted
depending on the type specified.
The types are:
1 - unicode string
2 - unicode string with environment variables
3 - binary
4 - little-endian 32-bit
5 - big-endian 32-bit
6 - unicode string with a symbolic link
7 - multiple unicode strings

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:39:51 -05:00
Andrzej Pietrasiewicz a747b0958b usb: gadget: f_rndis: OS Descriptors configfs support
Added handling of OS Descriptors support for f_rndis.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:39:36 -05:00
Andrzej Pietrasiewicz da4243145f usb: gadget: configfs: OS Extended Compatibility descriptors support
Add handling of OS Extended Compatibility descriptors from configfs interface.
Hosts which expect the "OS Descriptors" ask only for configurations @ index 0,
but linux-based USB devices can provide more than one configuration.
This patch adds marking one of gadget's configurations the configuration
to be reported at index 0, regardless of the actual sequence of usb_add_config
invocations used for adding the configurations. The configuration is selected
by creating a symbolic link pointing to it from the "os_desc" directory
located at the top of a gadget's directory hierarchy.

One kind of "OS Descriptors" are "Extended Compatibility Descriptors",
which need to be specified per interface. This patch adds interface.<n>
directory in function's configfs directory to represent each interface
defined by the function. Each interface's directory contains two attributes:
"compatible_id" and "sub_compatible_id", which represent 8-byte
strings to be reported to the host as the "Compatible ID" and "Sub Compatible
ID".

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:39:25 -05:00
Andrzej Pietrasiewicz 87213d388e usb: gadget: configfs: OS String support
Add handling of OS String extension from the configfs interface.
A directory "os_desc" is added at the top level of a gadget's
directories hierarchy. In the "os_desc" directory there are
three attributes: "use", "b_vendor_code" and "qw_sign".
If "use" contains "0" the OS string is not reported to the host.
"b_vendor_code" contains a one-byte value which is used
for custom per-device and per-interface requests.
"qw_sign" contains an identifier to be reported as the "OS String"
proper.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:39:14 -05:00
Andrzej Pietrasiewicz de7a8d2d53 usb: gadget: f_rndis: OS descriptors support
In order for usb functions to expose OS descriptors they
need to be made aware of OS descriptors. This involves
extending the "options" structure and setting up
appropriate associations.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:38:58 -05:00
Andrzej Pietrasiewicz 37a3a53342 usb: gadget: OS Feature Descriptors support
There is a custom (non-USB IF) extension to the USB standard:

http://msdn.microsoft.com/library/windows/hardware/gg463182

They grant permission to use the specification - there is
"Microsoft OS Descriptor Specification License Agreement"
under the link mentioned above, and its Section 2 "Grant
of License", letter (b) reads:

"Patent license. Microsoft hereby grants to You a nonexclusive,
royalty-free, nontransferable, worldwide license under Microsoft’s
patents embodied solely within the Specification and that are owned
or licensable by Microsoft to make, use, import, offer to sell,
sell and distribute directly or indirectly to Your Licensees Your
Implementation. You may sublicense this patent license to Your
Licensees under the same terms and conditions."

The said extension is maintained by Microsoft for Microsoft.

Yet it is fairly common for various devices to use it, and a
popular proprietary operating system expects devices to provide
"OS descriptors", so Linux-based USB gadgets whishing to be able
to talk to a variety of operating systems should be able to provide
the "OS descriptors".

This patch adds optional support for gadgets whishing to expose
the so called "OS Feature Descriptors", that is "Extended Compatibility ID"
and "Extended Properties".

Hosts which do request "OS descriptors" from gadgets do so during
the enumeration phase and before the configuration is set with
SET_CONFIGURATION. What is more, those hosts never ask for configurations
at indices other than 0. Therefore, gadgets whishing to provide
"OS descriptors" must designate one configuration to be used with
this kind of hosts - this is what os_desc_config is added for in
struct usb_composite_dev. There is an additional advantage to it:
if a gadget provides "OS descriptors" and designates one configuration
to be used with such non-USB-compliant hosts it can invoke
"usb_add_config" in any order because the designated configuration
will be reported to be at index 0 anyway.

This patch also adds handling vendor-specific requests addressed
at device or interface and related to handling "OS descriptors".

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:38:16 -05:00
Andrzej Pietrasiewicz 19824d5eee usb: gadget: OS String support
There is a custom (non-USB IF) extension to the USB standard:

http://msdn.microsoft.com/library/windows/hardware/gg463182

They grant permission to use the specification - there is
"Microsoft OS Descriptor Specification License Agreement"
under the link mentioned above, and its Section 2 "Grant
of License", letter (b) reads:

"Patent license. Microsoft hereby grants to You a nonexclusive,
royalty-free, nontransferable, worldwide license under Microsoft’s
patents embodied solely within the Specification and that are owned
or licensable by Microsoft to make, use, import, offer to sell,
sell and distribute directly or indirectly to Your Licensees Your
Implementation. You may sublicense this patent license to Your
Licensees under the same terms and conditions."

The said extension is maintained by Microsoft for Microsoft.

Yet it is fairly common for various devices to use it, and a
popular proprietary operating system expects devices to provide
"OS descriptors", so Linux-based USB gadgets whishing to be able
to talk to a variety of operating systems should be able to provide
the "OS descriptors".

This patch adds optional support for gadgets whishing to expose
the so called "OS String" under index 0xEE of language 0.
The contents of the string is generated based on the qw_sign
array and b_vendor_code.

Interested gadgets need to set the cdev->use_os_string flag,
fill cdev->qw_sign with appropriate values and fill cdev->b_vendor_code
with a value of their choice.

This patch does not however implement responding to any vendor-specific
USB requests.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:38:03 -05:00
Andrzej Pietrasiewicz 74d4846697 usb: gadget: FunctionFS: share VLA macros with all usb gadget files
Variable Length Array macros allow portable (compilable with both gcc
and clang) way of allocating a number of structures using a single
memory chunk. They can be useful for files other than f_fs.c,
so move them to a header file.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:37:27 -05:00
Dan Carpenter 10f0577aa5 usb: phy: msm: change devm_ioremap() to devm_ioremap_resource()
There are several issues here:
1) platform_get_resource() can return NULL and that wasn't handled.
2) We should request the memory before we remap it, and
   devm_ioremap_resource() does that.
3) devm_ioremap() returns a NULL but we were checking for IS_ERR().

Fixes: 6b99c68ec1 ('usb: phy: msm: Migrate to Managed Device Resource allocation')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:25:51 -05:00
Arnd Bergmann c5ab571f81 usb: phy: msm: reset controller is mandatory now
Commit a273454341 "usb: phy: msm: Use reset framework for LINK
and PHY resets" introduced a mandatory call to reset_control_get
into the msm usb phy driver, which means we have to add a Kconfig
dependency on the API to avoid this build error:

phy/phy-msm-usb.c: In function 'msm_otg_read_dt':
phy/phy-msm-usb.c:1461:2: error: implicit declaration of function 'devm_reset_control_get' [-Werror=implicit-function-declaration]
  motg->link_rst = devm_reset_control_get(&pdev->dev, "link");
  ^

Since the usb-ehci-msm driver currently selects the OTG driver,
we could still get a broken dependency here. To solve that,
this patch also removes the 'select', which turns out to be
unnecessary.

Reviewed-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:25:47 -05:00
Arnd Bergmann a8d191c8bb usb: musb: omap2plus bus glue needs USB host support
The musb/omap2430.c bus glue driver calls usb_hcd_poll_rh_status,
which is only available if CONFIG_USB is also set, i.e. we
are building USB host mode and not just endpoint mode.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: linux-omap@vger.kernel.org
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:23:32 -05:00
Arnd Bergmann 70c1ff4b3c usb: musb: tusb-dma can't be built-in if tusb is not
A configuration with CONFIG_USB_MUSB_HDRC=y, CONFIG_USB_TUSB_OMAP_DMA=y
and CONFIG_USB_MUSB_TUSB6010=m causes a link failure because of the
dependency on the tusb_get_revision symbol:

(.text+0x154ce8): undefined reference to `tusb_get_revision'

This patch ensures that either MUSB_HDRC and MUSB_TUSB6010 are
both modules or both built-in, which are the valid configurations.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: linux-omap@vger.kernel.org
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:23:31 -05:00
Arnd Bergmann 64890edb85 usb: gadget: s3c2410_udc: don't use pr_debug return value
pr_debug() may be defined as "do { } while (0)" in some configurations,
which means one cannot rely on the return value to be available.

In the dprintk function in this driver, we can work around the
resulting build error trivially by returning the length that
this function already knows and ignoring the return value of
pr_debug.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: linux-samsung-soc@vger.kernel.org
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:23:31 -05:00
Alexey Khoroshilov 966036fde6 usb: gadget: gr_udc: unconditionally use GFP_ATOMIC in gr_queue_ext()
As far as gr_queue() is called with spinlock held,
we have to pass GFP_ATOMIC regardless of gfp argument.

Found by Linux Driver Verification project (linuxtesting.org).

Acked-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:23:30 -05:00
Jingoo Han f06d186dbd usb: gadget: tcm_usb_gadget: remove unnecessary OOM messages
The site-specific OOM messages are unnecessary, because they
duplicate the MM subsystem generic OOM message.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:23:30 -05:00
Jingoo Han e5f06f909f usb: gadget: r8a66597-udc: remove unnecessary OOM messages
The site-specific OOM messages are unnecessary, because they
duplicate the MM subsystem generic OOM message.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:23:29 -05:00
Jingoo Han f3772c2b49 usb: gadget: mv_u3d_core: remove unnecessary OOM messages
The site-specific OOM messages are unnecessary, because they
duplicate the MM subsystem generic OOM message.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:23:29 -05:00
Jingoo Han c797f7fd5c usb: gadget: m66592-udc: remove unnecessary OOM messages
The site-specific OOM messages are unnecessary, because they
duplicate the MM subsystem generic OOM message.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:23:29 -05:00
Jingoo Han 8a24bb4039 usb: gadget: fusb300_udc: remove unnecessary OOM messages
The site-specific OOM messages are unnecessary, because they
duplicate the MM subsystem generic OOM message.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:23:28 -05:00
Jingoo Han 8a67ab7d1d usb: gadget: fsl_udc_core: remove unnecessary OOM messages
The site-specific OOM messages are unnecessary, because they
duplicate the MM subsystem generic OOM message.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:23:28 -05:00
Jingoo Han 0351c329f7 usb: gadget: fotg210-udc: remove unnecessary OOM messages
The site-specific OOM messages are unnecessary, because they
duplicate the MM subsystem generic OOM message.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:23:27 -05:00
Jingoo Han d48d41f18a usb: gadget: f_uac2: remove unnecessary OOM messages
The site-specific OOM messages are unnecessary, because they
duplicate the MM subsystem generic OOM message.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:23:27 -05:00
Alexandre Belloni bcdbc084eb usb: gadget: atmel_usba: always test udc->driver
Found using smatch: drivers/usb/gadget/atmel_usba_udc.c:1689 usba_udc_irq()
error: we previously assumed 'udc->driver' could be null (see line 1636)

Always test udc->driver before using its members.

Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:23:26 -05:00
Peter Chen 4d9f872ced usb: gadget: configfs: fix typo
%s/atleast/at least

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:23:26 -05:00
Paul Bolle 22a825079a usb: musb: tusb: remove dead code
musb_in_tusb() is always set to 0, because CONFIG_USB_TUSB6010 is never
set (it should have been CONFIG_USB_MUSB_TUSB6010). But musb_in_tusb()
is unused anyway, so remove a few lines of dead code.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:23:25 -05:00
George Cherian 411dd19c68 usb: musb: Kconfig: Select the DMA driver if DMA mode of MUSB is enabled
AM335x MUSB supports both PIO and DMA mode. When DMA mode is
selected users need to explicitly enable the DMA driver. To avoid the
extra configuration select the DMA driver if DMA mode is set for AM335x MUSB.

Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:23:25 -05:00
Robert Baldyga b34e08d5c7 tools: usb: aio example applications
This patch adds two example applications showing usage of Asynchronous I/O API
of FunctionFS. First one (aio_simple) is simple example of bidirectional data
transfer. Second one (aio_multibuff) shows multi-buffer data transfer, which
may to be used in high performance applications.

Both examples contains userspace applications for device and for host.
It needs libaio library on the device, and libusb library on host.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-14 09:23:24 -05:00
Maxime Ripard eadd431239 phy: usb: sunxi: Introduce Allwinner A31 USB PHY support
The USB phy controller in the A31 differs mostly from the older controllers
because it has a clock dedicated for each phy, while the older ones were having
a single clock for all the phys.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-05-14 19:41:13 +05:30
Maxime Ripard fecc2d785b Documentation: dt: Add new compatible for the A31 USB Phy
Document the freshly introduced compatible for the USB phy in use in the
Allwinner A31 SoC.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-05-14 19:41:13 +05:30
Maxime Ripard 2a7f9982d6 phy: sunxi: Rework phy initialization
Move the phy initialization and variables declaration to the loop itself, since
it is where it really belongs. Also remove all the temporary variables, we can
use the structure members directly.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-05-14 19:41:13 +05:30
Vivek Gautam 4fc8a4e65f phy: exynos5-usbdrd: Add facility for VBUS supply
Adding support to enable/disable VBUS controlled by a
regulator, to enable vbus supply on the port.

Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-05-13 18:07:08 +05:30
Vivek Gautam 59025887fb phy: Add new Exynos5 USB 3.0 PHY driver
Add a new driver for the USB 3.0 PHY on Exynos5 series of SoCs.
The new driver uses the generic PHY framework and will interact
with DWC3 controller present on Exynos5 series of SoCs.

Also, created a new header file in linux/mfd/syscon/ for
Exynos5 SoCs and put the required PMU offset definitions
for the basic available PHYs.

Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-05-13 18:07:08 +05:30
Vivek Gautam 9e552a04fd Documentation: Document Exynos5 USB 3.0 DRD PHY
Add necessary binding documentation for USB 3.0 DRD PHY present on
Exynos5 SoC series.

Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-05-13 18:07:08 +05:30
Apelete Seketeli 60b6dbeffb documentation: docbook: document process of writing an musb glue layer
Document the process of writing an musb glue layer by taking the
Ingenic JZ4740 glue layer as an example, as it seems more simple than
most glue layers due to the basic feature set of the JZ4740 USB device
controller.

Signed-off-by: Apelete Seketeli <apelete@seketeli.net>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-12 12:34:47 -05:00
Peter Chen b5fb8d0a40 usb: udc-core: set gadget state as not attached after unloading module
Set gadget state as "not attached" after unloading gadget module, or
its state will be unchanged after we unload gadget module.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-12 12:34:47 -05:00
Peter Chen 6027f3173e usb: gadget: set gadget state as configured
Set gadget device state as configurated after set configuration
has finished.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-12 12:34:46 -05:00
Felipe Balbi 1f7fc40876 usb: phy: msm: enable build on other architectures
By adding COMPILE_TEST to the list of dependencies
we can build test this driver on all other architectures
which is very valuable for maintainers applying patches
and to find silly mistakes during development.

Reviewed-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-12 12:34:46 -05:00
Felipe Balbi 245974908c usb: phy: msm: switch over to writel()
Remove that single instance of writel_relaxed()
call which is only available on ARM architecture.

This will let us build test this driver on all
different architectures.

Reviewed-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-12 12:34:45 -05:00
Felipe Balbi b3025e6ada usb: phy: msm: cast to enum msm_usb_phy_type
this solves the following build warning found when
running compile tests.

drivers/usb/phy/phy-msm-usb.c: In function ‘msm_otg_read_dt’:
drivers/usb/phy/phy-msm-usb.c:1459:20: warning: cast from pointer \
	to integer of different size [-Wpointer-to-int-cast]
  pdata->phy_type = (int) id->data;
                    ^
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-05-12 12:34:23 -05:00
Arnd Bergmann 3fc03f3d72 phy: kona2: use 'select GENERIC_PHY' in Kconfig
All other phy drivers use 'select', while this one is
the only one to use 'depends on'. This is not a bug, just
slightly inconsistent, so let's change it to do things the
same way as everyone else.

We may also want to turn GENERIC_PHY into a silent option
that only ever gets turned on if another driver needs it.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Matt Porter <mporter@linaro.org>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-05-12 19:02:02 +05:30
Antoine Ténart 98c3b32229 phy: exynos-mipi-video: fix check on array index
The phys array is of size EXYNOS_MIPI_PHYS_NUM. Trying to access the
index EXYNOS_MIPI_PHYS_NUM should return an error.

Fixes: 069d2e26e9 "phy: Add driver for Exynos MIPI CSIS/DSIM DPHYs"

Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-05-12 19:02:02 +05:30
Linus Torvalds d6d211db37 Linux 3.15-rc5 2014-05-09 13:10:52 -07:00
Linus Torvalds 181da3c34a Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Peter Anvin:
 "A somewhat unpleasantly large collection of small fixes.  The big ones
  are the __visible tree sweep and a fix for 'earlyprintk=efi,keep'.  It
  was using __init functions with predictably suboptimal results.

  Another key fix is a build fix which would produce output that simply
  would not decompress correctly in some configuration, due to the
  existing Makefiles picking up an unfortunate local label and mistaking
  it for the global symbol _end.

  Additional fixes include the handling of 64-bit numbers when setting
  the vdso data page (a latent bug which became manifest when i386
  started exporting a vdso with time functions), a fix to the new MSR
  manipulation accessors which would cause features to not get properly
  unblocked, a build fix for 32-bit userland, and a few new platform
  quirks"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, vdso, time: Cast tv_nsec to u64 for proper shifting in update_vsyscall()
  x86: Fix typo in MSR_IA32_MISC_ENABLE_LIMIT_CPUID macro
  x86: Fix typo preventing msr_set/clear_bit from having an effect
  x86/intel: Add quirk to disable HPET for the Baytrail platform
  x86/hpet: Make boot_hpet_disable extern
  x86-64, build: Fix stack protector Makefile breakage with 32-bit userland
  x86/reboot: Add reboot quirk for Certec BPC600
  asmlinkage: Add explicit __visible to drivers/*, lib/*, kernel/*
  asmlinkage, x86: Add explicit __visible to arch/x86/*
  asmlinkage: Revert "lto: Make asmlinkage __visible"
  x86, build: Don't get confused by local symbols
  x86/efi: earlyprintk=efi,keep fix
2014-05-09 12:24:20 -07:00
Boris Ostrovsky 28b92e09e2 x86, vdso, time: Cast tv_nsec to u64 for proper shifting in update_vsyscall()
With tk->wall_to_monotonic.tv_nsec being a 32-bit value on 32-bit
systems, (tk->wall_to_monotonic.tv_nsec << tk->shift) in update_vsyscall()
may lose upper bits or, worse, add them since compiler will do this:
	(u64)(tk->wall_to_monotonic.tv_nsec << tk->shift)
instead of
	((u64)tk->wall_to_monotonic.tv_nsec << tk->shift)

So if, for example, tv_nsec is 0x800000 and shift is 8 we will end up
with 0xffffffff80000000 instead of 0x80000000. And then we are stuck in
the subsequent 'while' loop.

We need an explicit cast.

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: http://lkml.kernel.org/r/1399648287-15178-1-git-send-email-boris.ostrovsky@oracle.com
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: <stable@vger.kernel.org> # v3.14
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2014-05-09 08:45:52 -07:00
Andres Freund c45f77364b x86: Fix typo in MSR_IA32_MISC_ENABLE_LIMIT_CPUID macro
The spuriously added semicolon didn't have any effect because the
macro isn't currently in use.

c0a639ad0b

Signed-off-by: Andres Freund <andres@anarazel.de>
Link: http://lkml.kernel.org/r/1399598957-7011-3-git-send-email-andres@anarazel.de
Cc: Borislav Petkov <bp@suse.de>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2014-05-09 08:42:47 -07:00
Andres Freund 722a0d22d0 x86: Fix typo preventing msr_set/clear_bit from having an effect
Due to a typo the msr accessor function introduced in
22085a66c2 didn't have any lasting
effects because they accidentally wrote the old value back.

After c0a639ad0b this at the very least
this causes cpuid limits not to be lifted on some cpus leading to
missing capabilities for those.

Signed-off-by: Andres Freund <andres@anarazel.de>
Link: http://lkml.kernel.org/r/1399598957-7011-2-git-send-email-andres@anarazel.de
Cc: Borislav Petkov <bp@suse.de>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2014-05-09 08:42:32 -07:00
Linus Torvalds afcf0a2d92 Fixes for 3.15-rc5:
- fix a remote attribute size calculation bug that leads to a
   transaction overrun
 - add default ACLs to O_TMPFILE files
 - Remove the EXPERIMENTAL tag from filesystems with metadata CRC
   support
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIcBAABAgAGBQJTa+0vAAoJEK3oKUf0dfodQGkQAI4IzVYr4K02Rj7UcbZaGlUM
 R9OAATojaQ8/hPDshzrhyLK7/KvF2tJvH9PhP6zj3bko3fmhofJ5/mB6LYIsQtt+
 3rNd/jij9Icmq4+ouZPRDl00nJdnCZjJcfYys6N/tXwLNIvwKP04vjB4QoC1rxVv
 j6L85yUkMpPohA0Wbf+PKrTVJDrtTOe+YpczciYgGKHr0YF27Bdy6iYSU3KvTvd+
 wuqXvGAc9ARZDsrVHt8t6eh9OKRRk1RAV5vdwGwucBrVlnxGaspvia/85JyU3Kv0
 F2EQ3fWcGQs5ydQjpvSZlEIttDqBDn/LiuncNctXIUvHpr+MQ73XMVrNLoNY1m6d
 wQqXFQXT4e/vzJTXyQz/jYgzGl5t9Lvf/1Z5lFHliqhaBm1aNMhdjfCZhEpehoaQ
 09JSVj8ZKLHZt3yRgwkZdOmM0bl4thJmY1Wf5O2EPMrk3NE3nZKiNG+W2U/sSFti
 i12M4uVgInmeHoDIWFNL9kXp3fs+gr6HF5BNQOulm0ywzG3U1ozWGyKsnRmpPFQr
 995voVKZKDP410wzp98UKpjXalmonYuTFLNUDEEjr2UKUWq6fRpvDdSeBSRirGxP
 kdwfpgCZHDJlZEY7d4lv4Pv6L84KgYYHQpmbaFcPEAmJmlMZ4web1KqHl8TDy1hT
 Z+STYvTImpXV9sP5TZYT
 =79c6
 -----END PGP SIGNATURE-----

Merge tag 'xfs-for-linus-3.15-rc5' of git://oss.sgi.com/xfs/xfs

Pull xfs fixes from Dave Chinner:
 "The main fix is adding support for default ACLs on O_TMPFILE opened
  inodes to bring XFS into line with other filesystems.  Metadata CRCs
  are now also considered well enough tested to be fully supported, so
  we're removing the shouty warnings issued at mount time for
  filesystems with that format.  And there's transaction block
  reservation overrun fix.

  Summary:
   - fix a remote attribute size calculation bug that leads to a
     transaction overrun
   - add default ACLs to O_TMPFILE files
   - Remove the EXPERIMENTAL tag from filesystems with metadata CRC
     support"

* tag 'xfs-for-linus-3.15-rc5' of git://oss.sgi.com/xfs/xfs:
  xfs: remote attribute overwrite causes transaction overrun
  xfs: initialize default acls for ->tmpfile()
  xfs: fully support v5 format filesystems
2014-05-08 19:20:45 -07:00
Linus Torvalds f322e26238 This contains two fixes.
The first is a long standing bug that causes bogus data to show up
 in the refcnt field of the module_refcnt tracepoint. It was
 introduced by a merge conflict resolution back in 2.6.35-rc days.
 
 The result should be refcnt = incs - decs, but instead it did
 refcnt = incs + decs.
 
 The second fix is to a bug that was introduced in this merge window
 that allowed for a tracepoint funcs pointer to be used after it
 was freed. Moving the location of where the probes are released
 solved the problem.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJTa/GQAAoJEKQekfcNnQGuGGUIAJCkrDZdnliE6f6Ur8aXJoX7
 gjkXRMmCjLM/X8yQc1H8YwDbSgaTQNmeyQvBbBZ1hUQBaMf5ft4KuFYMGvQRk3jp
 ZheQVumSzsQfO+yp5dRmzJ6H2G0BCInxq9VZyufZkCPUGsMyiIc+7+SGHEfjMgmW
 9XFWyfSr09thVlGanr+OTLXfwFm7GMD9nohLKXh9dhi/tO/gHq6lI83HK42Y1bWG
 4fZWJjO5GgCVbW4RanB6yr9RIe8NESKl37JYsAZX61iAvT8/mqIYGWx0i/DEGN5Q
 ap3WW5QPALLUlvUVgI9Um0KOrotbmKtnRwPeHYDmSQODwuKj5veiLXxL9XdHPLU=
 =lt0T
 -----END PGP SIGNATURE-----

Merge tag 'trace-fixes-v3.15-rc4-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:
 "This contains two fixes.

  The first is a long standing bug that causes bogus data to show up in
  the refcnt field of the module_refcnt tracepoint.  It was introduced
  by a merge conflict resolution back in 2.6.35-rc days.

  The result should be 'refcnt = incs - decs', but instead it did
  'refcnt = incs + decs'.

  The second fix is to a bug that was introduced in this merge window
  that allowed for a tracepoint funcs pointer to be used after it was
  freed.  Moving the location of where the probes are released solved
  the problem"

* tag 'trace-fixes-v3.15-rc4-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracepoint: Fix use of tracepoint funcs after rcu free
  trace: module: Maintain a valid user count
2014-05-08 14:17:13 -07:00
Linus Torvalds d86561b4c7 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input subsystem fixes from Dmitry Torokhov:
 "Just a few fixups to various drivers"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: elantech - fix touchpad initialization on Gigabyte U2442
  Input: tca8418 - fix loading this driver as a module from a device tree
  Input: bma150 - extend chip detection for bma180
  Input: atkbd - fix keyboard not working on some LG laptops
  Input: synaptics - add min/max quirk for ThinkPad Edge E431
2014-05-08 14:06:45 -07:00
Linus Torvalds c6c96d7bba sound fixes for 3.15-rc5
A bunch of small fixes for USB-audio and HD-audio, where most of them
 are for regressions: USB-audio PM fixes, ratelimit annoyance fix,
 HDMI offline state fix, and a couple of device-specific quirks.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABAgAGBQJTa5LaAAoJEGwxgFQ9KSmkabEQAINXU3tKZffB8+wu5SG/ZkWx
 07vFKLPdYHk/9Q4FboGTZbS6eXqZka4x5QH6t8GbdpPG2q3xQL/MjzfSVf4jg2IB
 6uh1Ng47dYr08rHXuwFYHAYbeWSet2uERRO+k0WClnsS+Y/IO/38Fnr3xfgwTQEJ
 YRhz3ck0mgk8v08D3f+6Nb12WX36wxfQh00K8fRUBNBI5OchXNPymrIoI0rvWrbt
 WVUIVUk2x+z6Sa8cg2+VPHOrSE/Anxjeejz7iaq1t+BCwcGiQRunGkkzS5wxxPxD
 j3yb2bwy1O3AdBPBSZJruNIdwTgWHomENaowQE/Y9SwvCDy1thIHrQZZkZxh4vVB
 uAHfeBHh8hsHZXHAIkR+JH2fZOHXBgiMFNuw634NAox1/ShRbtZBMoovlBl7rrKv
 Ikgodj6AInrdXfoFj2d80dURV7145PpfC5KRZ5f6Xn+/DGEipHqXbq3W4vLyzGhP
 hzybfKTiQzlrcuyYAJFBo1NFM1utk1VSqO+X7k3tjHre5Z3jOKLrzOwxOavrD7i3
 81bUpeXqP0wSJWz3MBGHP1MSSRm9FhCWZhGe1pXKxsxZISTFQKGaqBaq28TliJ7z
 LDGcP6rv8uEbHV4sSxuVe6Vo/nzxTeteo3WQlLgrhBC9PJmjQ4TBY3CJjWdLY7nT
 KiYvHWF7zRjFqwQ0VUns
 =OCny
 -----END PGP SIGNATURE-----

Merge tag 'sound-3.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A bunch of small fixes for USB-audio and HD-audio, where most of them
  are for regressions: USB-audio PM fixes, ratelimit annoyance fix, HDMI
  offline state fix, and a couple of device-specific quirks"

* tag 'sound-3.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - hdmi: Set converter channel count even without sink
  ALSA: usb-audio: work around corrupted TEAC UD-H01 feedback data
  ALSA: usb-audio: Fix deadlocks at resuming
  ALSA: usb-audio: Save mixer status only once at suspend
  ALSA: usb-audio: Prevent printk ratelimiting from spamming kernel log while DEBUG not defined
  ALSA: hda - add headset mic detect quirk for a Dell laptop
2014-05-08 13:51:53 -07:00