Avoid two warnings from clang.

Clang compiler warns about undefined static functions like getReturnString
before all references are removed inside IF_LOG_COMMANDS.
To remove such warnings, we can leave those static functions defined
and the compiler will remove them at the end when they are not used.

Add a cast to long before converting from int to void*,
to avoid type cast warnings on 64 bit targets.

BUG: 17043248
Change-Id: Ica31101522279d2c8eacc90e2939767002fb827b