tracing/syscalls: Fix perf syscall tracing when syscall_nr == -1

syscall_get_nr can return -1 in the case that the task is not executing
a system call.

This patch fixes perf_syscall_{enter,exit} to check that the syscall
number is valid before using it as an index into a bitmap.

Link: http://lkml.kernel.org/r/1345137254-7377-1-git-send-email-will.deacon@arm.com

Change-Id: Ibcc5ca26c366da5abf3f5c8356102fbd6e93a7d8
Cc: Jason Baron <jbaron@redhat.com>
Cc: Wade Farnsworth <wade_farnsworth@mentor.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
tracing/syscalls: Ignore numbers outside NR_syscalls' range

ARM has some private syscalls (for example, set_tls(2)) which lie
outside the range of NR_syscalls.  If any of these are called while
syscall tracing is being performed, out-of-bounds array access will
occur in the ftrace and perf sys_{enter,exit} handlers.

 # trace-cmd record -e raw_syscalls:* true && trace-cmd report
 ...
 true-653   [000]   384.675777: sys_enter:            NR 192 (0, 1000, 3, 4000022, ffffffff, 0)
 true-653   [000]   384.675812: sys_exit:             NR 192 = 1995915264
 true-653   [000]   384.675971: sys_enter:            NR 983045 (76f74480, 76f74000, 76f74b28, 76f74480, 76f76f74, 1)
 true-653   [000]   384.675988: sys_exit:             NR 983045 = 0
 ...

 # trace-cmd record -e syscalls:* true
 [   17.289329] Unable to handle kernel paging request at virtual address aaaaaace
 [   17.289590] pgd = 9e71c000
 [   17.289696] [aaaaaace] *pgd=00000000
 [   17.289985] Internal error: Oops: 5 [#1] PREEMPT SMP ARM
 [   17.290169] Modules linked in:
 [   17.290391] CPU: 0 PID: 704 Comm: true Not tainted 3.18.0-rc2+ #21
 [   17.290585] task: 9f4dab00 ti: 9e710000 task.ti: 9e710000
 [   17.290747] PC is at ftrace_syscall_enter+0x48/0x1f8
 [   17.290866] LR is at syscall_trace_enter+0x124/0x184

Fix this by ignoring out-of-NR_syscalls-bounds syscall numbers.

Commit cd0980fc8add "tracing: Check invalid syscall nr while tracing syscalls"
added the check for less than zero, but it should have also checked
for greater than NR_syscalls.

Link: http://lkml.kernel.org/p/1414620418-29472-1-git-send-email-rabin@rab.in

Fixes: cd0980fc8add "tracing: Check invalid syscall nr while tracing syscalls"
Cc: stable@vger.kernel.org # 2.6.33+
Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

Conflicts:
	kernel/trace/trace_syscalls.c

Change-Id: I594dad820cdfd0c5c0eb6211de3ee765ec235459
msm: vidc: Add support for setting initial qp

Adds support to set initial qp, thereby allowing the client to set
initial qp for I,P, and B frames.

Change-Id: Ie956651bde85e800d97a0007769af9aec8ca16a4
Signed-off-by: Ashray Kulkarni <ashrayk@codeaurora.org>

Conflicts:
	drivers/media/platform/msm/vidc/vidc_hfi_api.h
	drivers/media/platform/msm/vidc/vidc_hfi_helper.h
msm: vidc: Amend calculation of buffer sizes in VENUS_BUFFER_SIZE

Add 8KB worth of padding for extradata. This is required to accommodate
some of the larger extradata types that didn't fit into the residual
space between the actual buffer size and its aligned size.

CRs-Fixed: 647378
Change-Id: I550f806079dfbdece229f68ffdfc5c0e20b3c9e1
Signed-off-by: Deva Ramasubramanian <dramasub@codeaurora.org>
msm: vidc: Expose extradata size to userspace

Previously, the extradata size was included within VENUS_BUFFER_SIZE
and callers (primarily in userspace) wouldn't know how much extra
padding was added to the buffer size. Exposing it allows userspace to
query directly instead of doing guesswork.

Change-Id: I7f9701a4adfe364d757028514bdd4fa84402a995
Signed-off-by: Deva Ramasubramanian <dramasub@codeaurora.org>
msm: vidc: Add AFD and CC metadata support to extradata

Add support and control for setting Active format
description and closed caption meta data in the
extradata. FW parses metadata and adds it to the
extradata. Client can use control to parse extradata
for the metadata information.

Change-Id: I79fb71e635927c95e0792862c9dea7d96f58e895
Signed-off-by: Jayasena Sangaraboina <jsanga@codeaurora.org>
msm: vidc: Add support for different errors

When hardware is overloaded or when max number of clients are
reached in driver or firmware, hardware error is sent to video
client. This change is to replace hardware error with actual
errors.

CRs-fixed: 575852
Change-Id: I07e599f894a3716a3dc4fed5eb7c987311f5bdde
Signed-off-by: Deepak Verma <dverma@codeaurora.org>

Conflicts:
	drivers/media/platform/msm/vidc/hfi_response_handler.c
	drivers/media/platform/msm/vidc/msm_vidc_common.c

Conflicts:
	drivers/media/platform/msm/vidc/hfi_response_handler.c
	drivers/media/platform/msm/vidc/msm_vidc_common.c
msm: vidc: Change in input buffer size calculation

Right now, input buffer size is calculated based on
maximum supported height and width returned from FW.
These values are not true representation as they are
calculated for rotation usecase. Driver needs to use
max MB supported from FW. This change fixes the same.

CRs-Fixed: 599818
Change-Id: I5b5f7d0db1088a4bc16ec7a32b31e1f763d5da7c
Signed-off-by: Manikanta Sivapala <msivap@codeaurora.org>

Conflicts:
	drivers/media/platform/msm/vidc/msm_vdec.c
msm: vidc: add new control for limiting i/p buffer size

Take the minimum of the size calculated by driver using
max width and height supported and the size set by client
for input buffers. Change interface to get input and
output buffer sizes.

Change-Id: Ia3eb4cc7ae7bb38e2650fff1b694623e2aab62ef
Signed-off-by: Manikanta Sivapala <msivap@codeaurora.org>
net: core: Support UID-based routing.

This contains the following commits:

1. 0149763 net: core: Add a UID range to fib rules.
2. 1650474 net: core: Use the socket UID in routing lookups.
3. 0b16771 net: ipv4: Add the UID to the route cache.
4. ee058f1 net: core: Add a RTA_UID attribute to routes.
    This is so that userspace can do per-UID route lookups.

Bug: 15413527
Change-Id: I1285474c6734614d3bda6f61d88dfe89a4af7892
Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Git-commit: 0b428749ce5969bc06c73855e360141b4e7126e8
Git-repo: https://android.googlesource.com/kernel/common.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>

Conflicts:
	net/core/fib_rules.c

Conflicts:
	net/core/fib_rules.c
Handle 'sk' being NULL in UID-based routing.

Bug: 15413527
Change-Id: If33bebb7b52c0ebfa8dac2452607bce0c2b0faa0
Signed-off-by: Sreeram Ramachandran <sreeram@google.com>
Git-commit: 0836a0c191f580ed69254e0b287cdce58481e978
Git-repo: https://android.googlesource.com/kernel/common.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
msm: 8226: audio: fix a warning when building with gcc 4.8

Change-Id: Ibb1fac110625a99723eba27e10fb8bc8639bf0f2