linux-stable.git/drivers/staging/android, branch linux-4.5.y

staging: android: ion: Set the length of the DMA sg entries in buffer

2016-04-20T06:45:27+00:00

commit 70bc916b2c80913753fb188d4daee50a64d21ba0 upstream.

ion_buffer_create() will allocate a buffer and then create a DMA
mapping for it, but it forgot to set the length of the page entries.

Signed-off-by: Liviu Dudau 
Signed-off-by: Jon Medhurst 
Acked-by: Laura Abbott 
Cc: Shawn Guo 
Signed-off-by: Greg Kroah-Hartman

staging: android: ion_test: fix check of platform_device_register_simple() error code

2016-04-12T14:33:27+00:00

commit ccbc2a9e7878ff09bcaed4893c2a2d3adbb797e2 upstream.

On error platform_device_register_simple() returns ERR_PTR() value,
check for NULL always fails. The change corrects the check itself and
propagates the returned error upwards.

Fixes: 81fb0b901397 ("staging: android: ion_test: unregister the platform device")
Signed-off-by: Vladimir Zapolskiy 
Signed-off-by: Greg Kroah-Hartman

Merge tag 'staging-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

2016-01-13T18:13:36+00:00

Pull staging driver updates from Greg KH:
 "Here is the big staging driver pull request for 4.5-rc1.

  Lots of cleanups and fixes here, not as many as some releases, but
  800+ isn't that bad.  Full details in the shortlog.  All of these have
  been in linux-next for a while"

* tag 'staging-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (843 commits)
  Revert "arm64: dts: Add dts files to enable ION on Hi6220 SoC."
  staging: gdm724x: constify tty_port_operations structs
  staging: gdm72xx: add userspace data struct
  staging: gdm72xx: Replace timeval with ktime_t
  iio: adc: ina2xx: Fix incorrect report of data endianness to userspace.
  iio: light: us5182d: Refactor read_raw function
  iio: light: us5182d: Add interrupt support and events
  iio: light: us5182d: Fix enable status inconcistency
  iio: Make IIO value formating function globally available.
  staging: emxx_udc: use list_first_entry_or_null()
  staging/emxx_udc: fix 64-bit warnings
  STAGING: COMEDI: Using kernel types in plx9080.h
  STAGING: COMEDI: Added spaces around binary operators in plx9080.h
  STAGING: COMEDI: Fixed format of comments in plx9080.h
  staging: comedi: comedilib.h: Coding style warning fix for block comments
  staging: comedi: s526: add macros for counter control reg values
  staging: comedi: s526: replace counter mode bitfield struct
  staging: comedi: check for more errors for zero-length write
  staging: comedi: simplify returned errors for comedi_write()
  staging: comedi: return error on "write" if no command set up
  ...

android: unconditionally remove callbacks in sync_fence_free()

2015-12-21T21:37:53+00:00

Using fence->status to determine whether or not there are callbacks
remaining on the sync_fence is racy since fence->status may have been
decremented to 0 on another CPU before fence_check_cb_func() has
completed.  By unconditionally calling fence_remove_callback() for each
fence in the sync_fence, we guarantee that each callback has either
completed (since fence_remove_callback() grabs the fence lock) or been
removed.

Signed-off-by: Andrew Bresticker 
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Greg Kroah-Hartman

staging/android/sync: add sync_fence_create_dma

2015-12-21T21:37:53+00:00

This allows users of dma fences to create a android fence.

v2: Added kerneldoc. (Tvrtko Ursulin).

v4: Updated comments from review feedback my Maarten.

Signed-off-by: Maarten Lankhorst 
Signed-off-by: Tvrtko Ursulin 
Cc: Maarten Lankhorst 
Cc: Daniel Vetter 
Cc: devel@driverdev.osuosl.org
Cc: Riley Andrews 
Cc: Arve Hjønnevåg 
Reviewed-by: Jesse Barnes 
Tested-by: Jesse Barnes 
Signed-off-by: Greg Kroah-Hartman

staging/android/sync: Support sync points created from dma-fences

2015-12-21T21:37:53+00:00

Debug output assumes all sync points are built on top of Android sync points
and when we start creating them from dma-fences will NULL ptr deref unless
taught about this.

v4: Corrected patch ownership.

Signed-off-by: Maarten Lankhorst 
Signed-off-by: Tvrtko Ursulin 
Cc: Maarten Lankhorst 
Cc: devel@driverdev.osuosl.org
Cc: Riley Andrews 
Cc: Arve Hjønnevåg 
Reviewed-by: Jesse Barnes 
Signed-off-by: Greg Kroah-Hartman

staging: android: ashmem.c: destroy slabs when init fails

2015-12-21T21:37:53+00:00

when ashmem init fails, destroy the slabs, leave
no garbage.

Signed-off-by: Wenwei Tao 
Signed-off-by: Greg Kroah-Hartman

staging: android: ion: Add ion driver for Hi6220 SoC platform

2015-12-21T21:36:01+00:00

Add ion support for hi6220 SoC platform.

Signed-off-by: Chen Feng 
Signed-off-by: Yu Dongbin 
Signed-off-by: Greg Kroah-Hartman

Revert "scatterlist: use sg_phys()"

2015-12-15T20:54:06+00:00

commit db0fa0cb0157 "scatterlist: use sg_phys()" did replacements of
the form:

    phys_addr_t phys = page_to_phys(sg_page(s));
    phys_addr_t phys = sg_phys(s) & PAGE_MASK;

However, this breaks platforms where sizeof(phys_addr_t) >
sizeof(unsigned long).  Revert for 4.3 and 4.4 to make room for a
combined helper in 4.5.

Cc: 
Cc: Jens Axboe 
Cc: Christoph Hellwig 
Cc: Russell King 
Cc: David Woodhouse 
Cc: Andrew Morton 
Fixes: db0fa0cb0157 ("scatterlist: use sg_phys()")
Suggested-by: Joerg Roedel 
Reported-by: Vitaly Lavrov 
Signed-off-by: Dan Williams

staging/android: add TODO to de-stage android sync framework

2015-12-14T19:05:45+00:00

 - remove CONFIG_SW_SYNC_USER, it is used only for testing/debugging and
   should not be upstreamed.
 - port CONFIG_SW_SYNC_USER tests interfaces to use debugfs somehow
 - port libsync tests to kselftest
 - clean up and ABI check for security issues
 - move the sync framework to drivers/base/dma-buf

Cc: Arve Hjønnevåg 
Cc: Riley Andrews 
Cc: Daniel Vetter 
Cc: Rob Clark 
Cc: Greg Hackmann 
Cc: John Harrison 
Signed-off-by: Gustavo Padovan 
Acked-by: Daniel Vetter 
Signed-off-by: Greg Kroah-Hartman