ARM: 8158/1: LLVMLinux: use static inline in ARM ftrace.h

With compilers which follow the C99 standard (like modern versions of gcc and
clang), "extern inline" does the wrong thing (emits code for an externally
linkable version of the inline function). In this case using static inline
and removing the NULL version of return_address in return_address.c does
the right thing.

Signed-off-by: Behan Webster <behanw@converseincode.com>
Reviewed-by: Mark Charlebois <charlebm@gmail.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: 8160/1: drop warning about return_address not using unwind tables

The warning was introduced in 2009 (commit 4bf1fa5a34aa ([ARM] 5613/1:
implement CALLER_ADDRESSx)). The only "problem" here is that
CALLER_ADDRESSx for x > 1 returns NULL which doesn't do much harm.

The drawback of implementing a fix (i.e. use unwind tables to implement CALLER_ADDRESSx) is that much of the unwinder code would need to be marked as not
traceable.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ghost: Use power efficient workqueues by default

Signed-off-by: Zhao Wei Liew <zhaoweiliew@gmail.com>
msm: kgsl: Introduce simple GPU governor

Not to be confused with faux123's simple GPU algorithm.
This governor is the port of the updated conservative governor.

It is based on the trustzone policy and the simple GPU algorithm.

Signed-off-by: Zhao Wei Liew <zhaoweiliew@gmail.com>
ghost: Use simple GPU governor

Signed-off-by: Zhao Wei Liew <zhaoweiliew@gmail.com>
ghost: Don't optimize for size

Size is good, but we have plenty. Go for optimization.

Signed-off-by: Zhao Wei Liew <zhaoweiliew@gmail.com>