A warning is issued when using an argument to likely() or unlikely()
builtins which is evaluated to a pointer value, as __builtin_expect()
expects a 'long int' type for its first argument. With this fix
a pointer value is converted to an integer with the value of 0 or 1.
Signed-off-by: Aleksey Baulin <aleksey.baulin@gmail.com>
7a89f8eedc