wcnss: Trigger WCNSS driver on first open.

WCNSS driver requires a trigger followed by an open, this is to support
the trigger from an external script. However, startup scripts are no
more supported; and wcnss service should always trigger this driver. So
the first open to this driver (that is from wcnss service), should also
trigger the driver.

Change-Id: I843c044d4fa452ca541a62255bbcb33b9d7f6eb0
CRs-fixed: 611763
Signed-off-by: Sameer Thalappil <sameert@codeaurora.org>
Signed-off-by: Hardik Kantilal Patel <hkpatel@codeaurora.org>
msm: Make CONFIG_STRICT_MEMORY_RWX even stricter

If CONFIG_STRICT_MEMORY_RWX was set, the first section (containing
the kernel page table and the initial code) and the section
containing the init code were both given RWX permission, which is
a potential security hole.

Pad the first section after the initial code (which will never
be executed when the MMU is on) to make the rest of the kernel
text start in the second section and make the first section RW.

Move some data which had ended up in the "init text"
section into the "init data" one, as this is RW, not RX.
Make the "init text" RX.

We will not free the section containing the "init text",
because if we do, the kernel will allocate memory for RW data there.

Change-Id: I6ca5f4e07342c374246f04a3fee18042fd47c33b
CRs-fixed: 513919
Signed-off-by: Larry Bassel <lbassel@codeaurora.org>
net: fib: fix incorrect call_rcu_bh()

After IP route cache removal, I believe rcu_bh() has very little use and
we should remove this RCU variant, since it adds some cycles in fast
path.
Anyway, the call_rcu_bh() use in fib_true is obviously wrong, since
some users only assert rcu_read_lock().

4619.617291:   <0> Internal error: Oops: 5 [#1] PREEMPT SMP ARM
114619.622541:   <4> Modules linked in: wlan(O) adsprpc [last unloaded: wlan]
114619.628980:   <4> CPU: 1    Tainted: G        W  O  (3.4.0-g366f2d7-00028-gde45140 #1)
114619.636427:   <4> PC is at leaf_walk_rcu+0x50/0x9c
114619.640761:   <4> LR is at fib_route_seq_next+0x58/0x7c
...[ Dmesg snip snip ]...
14620.187747:   <0> 5fe0: 405a3cd4 405a3ca0 007207ac 0071c098 80000010 00000012 00000000 00000000
114620.196018:   <4> [<c0720ec4>] (leaf_walk_rcu+0x50/0x9c) from [<c07210b0>] (fib_route_seq_next+0x58/0x7c)
114620.205114:   <4> [<c07210b0>] (fib_route_seq_next+0x58/0x7c) from [<c01642d8>] (seq_read+0x304/0x498)
114620.213964:   <4> [<c01642d8>] (seq_read+0x304/0x498) from [<c018daf8>] (proc_reg_read+0x80/0x98)
114620.222388:   <4> [<c018daf8>] (proc_reg_read+0x80/0x98) from [<c0147e90>] (vfs_read+0xa4/0x12c)
114620.230720:   <4> [<c0147e90>] (vfs_read+0xa4/0x12c) from [<c0147f4c>] (sys_read+0x34/0x68)
114620.238625:   <4> [<c0147f4c>] (sys_read+0x34/0x68) from [<c000e2e0>] (ret_fast_syscall+0x0/0x30)

CRs-Fixed: 614067

Change-Id: If493d4873de2ab5fa17e54b451871b4b3d469865
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Git-commit: 0c03eca3d995e73d691edea8c787e25929ec156d
Git-repo: https://www.codeaurora.org/cgit/quic/la/kernel/msm-3.10
Signed-off-by: Vijaya Kumar T M <vtmuni@codeaurora.org>
Merge "msm: Make CONFIG_STRICT_MEMORY_RWX even stricter"
kernel: enable internaldb on perf build

Enable internaldb for performance build.
It is already enabled on non-performance build.

Change-Id: I2e89ed6ef1fec080a9c753f370de7887236f1eb3
CRs-Fixed: 607058
Signed-off-by: Mihir Shete <smihir@codeaurora.org>
Merge "net: fib: fix incorrect call_rcu_bh()"
Merge "wcnss: Trigger WCNSS driver on first open."
Revert "msm:camera: Disable/enable VFE write masters properly during overflow"

This reverts commit 8579e70bfb06885c1530e7e0c6b0410050e8cba8.

Change-Id: I8152f6d3be841b296c300e3513eb013ee7fe31fb
Signed-off-by: Katta Santhisindhu <kattas@codeaurora.org>
arm: mach-msm: fix integer overflow in DFE_IOCTL_COMMAND

Added error checks for upper limit of param.num in
DFE_IOCTL_COMMAND

Change-Id: I0143813d38ec7a5dfa7a8307b075daf7d4a4d101
Acked-by: John Nicholas <jnichola@qti.qualcomm.com>
Signed-off-by: Venkatesh Yadav Abbarapu <quicvenkat@codeaurora.org>
arm: mach-msm: fix integer overflow in DFE ioctls for reg arr rw

Added error checks for upper limit of param.num in DFE ioctls
for register array r/w

Change-Id: I62d2eac38024c6c64f8d2d0f6d65f409569b2a76
Acked-by: John Nicholas <jnichola@qti.qualcomm.com>
Signed-off-by: Venkatesh Yadav Abbarapu <quicvenkat@codeaurora.org>
Merge "Revert "msm:camera: Disable/enable VFE write masters properly during overflow""
Merge "kernel: enable internaldb on perf build"
Merge "arm: mach-msm: fix integer overflow in DFE_IOCTL_COMMAND"
Merge "arm: mach-msm: fix integer overflow in DFE ioctls for reg arr rw"
Merge "Merge "wcnss: Trigger WCNSS driver on first open.""
Merge "Merge "Merge "wcnss: Trigger WCNSS driver on first open."""
Merge "Merge "arm: mach-msm: fix integer overflow in DFE ioctls for reg arr rw""
Merge "Merge "Merge "arm: mach-msm: fix integer overflow in DFE ioctls for reg arr rw"""
Merge "Merge "arm: mach-msm: fix integer overflow in DFE ioctls for reg arr rw""
Merge "Merge "Merge "arm: mach-msm: fix integer overflow in DFE ioctls for reg arr rw"""