ARM: dts: msm: Add new 'sharedmem' devices

Add new devices which need to maintain the shared memory
address for RemoteFS and RFSA

CRs-Fixed: 477427
Change-Id: Id5f3ea2a827d5a30b06d872d7a72468f1fd7718f
Signed-off-by: Pratibhasagar V <pratibha@codeaurora.org>
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
Asoc:msm:Added Buffer overflow check

The overflow check is required to ensure that user space data
in kernel may not go beyond buffer boundary.

Change-Id: I79b7e5f875fadcaeceb05f9163ae3666d4b6b7e1
CRs-Fixed: 563086
Signed-off-by: Mohammad Johny Shaik <mjshai@codeaurora.org>
cfg80211: intersect the regulatory rules for a new country

When the driver hints that it has detected a change in country
make sure that we intersect the regulatory rules in the global
strucutres maintained by cfg80211.

Change-Id: Iaaf43280e9dd7be43b699748726f282e4475340f
CRs-Fixed: 582344
Signed-off-by: Mihir Shete <smihir@codeaurora.org>
csdio: Remove the driver

The driver is a legacy driver that is not used any longer
and its implementation is neither correct nor compiles.

Change-Id: I9862c0f93ccad6079a616f6997987d4e187a137c
Signed-off-by: Hamad Kadmany <hkadmany@codeaurora.org>
msm: kgsl: Protect against a potential overflow in kgsl_sg_alloc

Avoid allocating a scatterlist so large that it overflows the size
passed to the memory allocators.

CRs-fixed: 564448
Change-Id: Ic0dedbad2ab421ddec8f3be38d61c9bdf9ae5bd4
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
msm: kgsl: avoid zero length scatterlist allocation

During sglist allocation we calculate sglen as
per below

sglen_alloc = PAGE_ALIGN(size) >> PAGE_SHIFT;

sglen_alloc can be zero if size falls within the
last page. For example, when size = 0xFFFF_FF7B,
PAGE_ALIGN(0xFFFF_FF7B) will be 0, considering
0x1000 (4kb) PAGE_SIZE. if kzalloc() with
zero size, it will return ZERO_SIZE_PTR which is
not NULL and we always do NULL check. Dereferencing
ZERO_SIZE_PTR will lead to a distinct access fault.

Signed-off-by: Gaurav Gagrani <ggagrani@codeaurora.org>

Change-Id: Ibcc6198438c13b5111be0faa736328db92511597
CRs-Fixed: 563106
Signed-off-by: Prakash Kamliya <pkamliya@codeaurora.org>
msm_serial_hs: Programming Auto RFR Ctrl bit

1.)Disable the auto RFR before forcibly making the RFR
line HIGH from the driver to avoid the controller
changing it's state with out driver's knowledge and
enable the auto RFR instead of making the RFR line
forcibly LOW.So that controller will make it LOW
based on the rx FIFO condition

2.)Due to unexpected data received from the client during
clock off sequence, the clock off sequence is going
into wrong state and eventually leads to uart hardware
mess up
This patch doesn't allow any data from the client during
clock off sequence is in progress

CRs-Fixed: 546216
Change-Id: I10ce82124163e8cf9a0603302d4f128ca255214d
Signed-off-by: Dilip Kota <c_dkota@codeaurora.org>
Signed-off-by: Dilip Kota <c_dkota@codeaurora.org>
radio: iris: Avoid inconsistent free

There is memory leak chance if we exit
from function early. Ensure to use free before
exiting from function.

Change-Id: I17dbecffc5713d95c66ecec0bffb5ed3c8660fe8
CRs-Fixed: 540334
Signed-off-by: Ayaz Ahmad <aahmad@codeaurora.org>
radio: tavarua: Added NULL checks for input arguments.

Added NULL checks for input arguments.

Change-Id: Ie39c2b3254c95925723735423c81b99da59ee6ad
CRs-fixed: 548405
Signed-off-by: Satish Kodishala <skodisha@codeaurora.org>
radio: iris: Prevent probable overflow

casting a unsigned int into an integer, integer to
unsigned int may cause buffer overflow.

Change-Id: I54be4d4c5470616a59a772c587fe6d5f32575c32
CRs-Fixed: 539008
Signed-off-by: Ayaz Ahmad <aahmad@codeaurora.org>
radio: iris: Use kernel API to copy data from user space

Use copy_from_user kernel api to copy any data from user space
to kernel space.

Change-Id: Ia3b7bb0f98180bd8792c1c18e930cb5609b8dc82
CRs-Fixed: 540320
Signed-off-by: Ayaz Ahmad <aahmad@codeaurora.org>
radio: iris: Avoid memory leak and NULL pointer dereferencing

 - Avoid memory leak by freeing allocated memory
 - Do not derefer NULL pointer

CRs-Fixed: 537955
Signed-off-by: Ayaz Ahmad <aahmad@codeaurora.org>
Change-Id: I7624d73e5c25233e9d03c67e4204c611b9a8fff6
radio: iris: Prevent loss of data

Down casting a variable may lead to loss
of data, other various kind of subtle errors.

Change-Id: If1f8a8c463333a5283c5ba66f099e33d66dc21e4
CRs-Fixed: 569313
Signed-off-by: Ayaz Ahmad <aahmad@codeaurora.org>
spi_qsd: Remove check for unaligned  length during input_irq.

QUP_IRQ  complete is triggered  before  dmov_rx callback.
Which will initiate SPI to start next transfer, due to
this earlier DMOV_CMD is blocked  and results in kernel panic.

Current  Implementation  make sure that transfer complete waits
For  DMOV callback only in case of aligned lengths , This patch
ensures   transfer trigger only after DMOV  RX call back for
unaligned length also.

CRs-Fixed: 583126
Change-Id: I090cf9f2c0abb21907cf5786829d5351c23a9314
Signed-off-by: Sana Venkat Raju <c_vsana@codeaurora.org>
uio: msm_sharedmem: Add new device driver for sharedmemory access

Add new device driver to provide a standard interface for its
clients (like RemoteFS and RFSA) to be able to memory map their
respective allotted shared memory address in the client's address space.
The shared memory (a transport buffer) address is unique for each
individual client and is made available to the driver via device tree.

This driver uses the existing UIO framework to facilitate the clients
mmap requirements. Each individual client will be able to use a unique
UIO device for this purpose.

CRs-Fixed: 477427
Change-Id: If07b88086b5f1b87845962818094644575629fcf
Signed-off-by: Pratibhasagar V <pratibha@codeaurora.org>
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
Update defconfigs to use TUN/TAP and ZRAM as a built-in modules
Update defconfigs