CC      drivers/base/power/trace.o
In file included from drivers/base/power/trace.c:15:
drivers/base/power/power.h: In function ‘to_device’:
drivers/base/power/power.h:39: error: dereferencing pointer to incomplete type
drivers/base/power/power.h:39: warning: type defaults to ‘int’ in declaration of ‘__mptr’
drivers/base/power/power.h:39: warning: initialization from incompatible pointer type
drivers/base/power/power.h:39: error: invalid use of undefined type ‘struct device’
drivers/base/power/trace.c: In function ‘set_trace_device’:
drivers/base/power/trace.c:143: error: dereferencing pointer to incomplete type
drivers/base/power/trace.c: In function ‘show_dev_hash’:
drivers/base/power/trace.c:192: error: dereferencing pointer to incomplete type
drivers/base/power/trace.c:194: error: dereferencing pointer to incomplete type