gcc -Wall -O0 -g -I. -c me.c -o me.o
me.c: In function 'mei_dump':
me.c:63:18: warning: variable 'csr' set but not used [-Wunused-but-set-variable]
struct mei_csr *csr;
^~~
gcc -Wall -O0 -g -I. -c mmap.c -o mmap.o
mmap.c: In function 'map_physical_exact':
mmap.c:11:26: warning: passing argument 1 of 'mmap' makes pointer from integer without a cast [-Wint-conversion]
virt_addr = mmap(mapto, len, PROT_WRITE | PROT_READ, MAP_SHARED|MAP_FIXED,
^~~~~
gcc 7.2.0