In file included from ../../common/sys/param.h:48:0,
                 from ../../common/io/fd.c:41:
../../common/io/fd.c: In function 'fd_attach':
../../common/sys/null.h:32:14: error: passing argument 6 of 'ddi_create_minor_node' makes integer from pointer without a cast [-Werror=int-conversion]
 #define NULL ((void *)0)
              ^
../../common/io/fd.c:496:44: note: in expansion of macro 'NULL'
        sig_minor | dmdp->minor, DDI_NT_FD, NULL)
                                            ^~~~
In file included from ../../common/io/fd.c:54:0:
../../common/sys/sunddi.h:1564:1: note: expected 'int' but argument is of type 'void *'
 ddi_create_minor_node(dev_info_t *dip, char *name, int spec_type,
 ^~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors