37     struct ff_msg *msg, *retmsg = NULL;  in sysctl()  local
46     msg = ff_ipc_msg_alloc();  in sysctl()
47     if (msg == NULL) {  in sysctl()
58     if (total_len > msg->buf_len) {  in sysctl()
62             ff_ipc_msg_free(msg);  in sysctl()
65         msg->original_buf = msg->buf_addr;  in sysctl()
66         msg->original_buf_len = msg->buf_len;  in sysctl()
67         msg->buf_addr = extra_buf;  in sysctl()
68         msg->buf_len = total_len;   in sysctl()
71     char *buf_addr = msg->buf_addr;  in sysctl()
73     msg->msg_type = FF_SYSCTL;  in sysctl()
74     msg->sysctl.name = (int *)buf_addr;  in sysctl()
75     msg->sysctl.namelen = namelen;  in sysctl()
76     memcpy(msg->sysctl.name, name, namelen * sizeof(int));  in sysctl()
81         msg->sysctl.new = buf_addr;  in sysctl()
82         msg->sysctl.newlen = newlen;  in sysctl()
83         memcpy(msg->sysctl.new, new, newlen);  in sysctl()
87         msg->sysctl.new = NULL;  in sysctl()
88         msg->sysctl.newlen = 0;  in sysctl()
92         msg->sysctl.oldlenp = (size_t *)buf_addr;  in sysctl()
93         memcpy(msg->sysctl.oldlenp, oldlenp, sizeof(size_t));  in sysctl()
97             msg->sysctl.old = (void *)buf_addr;  in sysctl()
98             memcpy(msg->sysctl.old, old, *oldlenp);  in sysctl()
101             msg->sysctl.old = NULL;  in sysctl()
104         msg->sysctl.oldlenp = NULL;  in sysctl()
105         msg->sysctl.old = NULL;  in sysctl()
108     int ret = ff_ipc_send(msg);  in sysctl()
118         ret = ff_ipc_recv(&retmsg, msg->msg_type);  in sysctl()
123     } while (msg != retmsg);  in sysctl()
140     ff_ipc_msg_free(msg);  in sysctl()