gcc-4.0.1 warning message in ipmi_inventory.c

Setup: FedoraCore-4 with updates
gcc (GCC) 4.0.1 20050727 (Red Hat 4.0.1-5)
automake (GNU automake) 1.9.5
autoconf (GNU Autoconf) 2.59
Fresh CVS checkout - 02Aug05 07:30 CST
OpenIPMI-devel-1.4.18-1
OpenIPMI-1.4.18-1

Warning message:
ipmi_inventory.c:245: warning: pointer targets in
passing argument 2 of
'ipmi_entity_get_internal_use_data' differ in signedness
ipmi_inventory.c:250: warning: pointer targets in
passing argument 3 of 'ipmi_fru_get_multi_record_type'
differ in signedness
ipmi_inventory.c:894: warning: pointer targets in
passing argument 2 of 'get_len' differ in signedness
ipmi_inventory.c:905: warning: pointer targets in
passing argument 2 of 'get_data' differ in signedness
ipmi_inventory.c:905: warning: pointer targets in
passing argument 3 of 'get_data' differ in signedness
ipmi_inventory.c:1064: warning: pointer targets in
passing argument 3 of 'cf->get_data' differ in signedness