wcnss: wake lock APIs for host drivers

wcnss related host drivers can use these APIs to prevent Apps suspend.
WLAN driver uses this API to prevent suspend, when it's module
initialization routines are being executed.

Change-Id: Id072804e6ccc953c78caf6cf11c73e0ea1d71d18
Signed-off-by: Sameer Thalappil <sameert@codeaurora.org>

Conflicts:
	include/linux/wcnss_wlan.h
wcnss: Notify Kernel suspend/resume to WCNSS

Notify WCNSS when the Kernel is suspended and also when it resumes.

Signed-off-by: Sameer Thalappil <sameert@codeaurora.org>
Signed-off-by: Jeff Johnson <jjohnson@codeaurora.org>

Conflicts:
	arch/arm/mach-msm/wcnss-ssr-8960.c

Change-Id: I978f68299e5c3929163d59116e0ca889af7a0b27
mm, vmalloc: use well-defined find_last_bit() func

Our intention in here is to find last_bit within the region to flush.
There is well-defined function, find_last_bit() for this purpose and its
performance may be slightly better than current implementation.  So change
it.

Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm, vmalloc: remove useless variable in vmap_block

vbq in vmap_block isn't used. So remove it.

Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>