network: make request_process_address() and friends take Link and corresponding object

This also renames e.g. request_process_address() -> address_process_request().

Also, this drops type checks such as `assert(req->type == REQUEST_TYPE_ADDRESS)`,
as in the later commits, the function of processing request, e.g.
`address_process_request()`, will be assigned to the Request object when
it is created. And the request type will be used to distinguish and to
avoid deduplicating requests which do not have any assigned objects,
like REQUEST_TYPE_DHCP4_CLIENT. Hence, the type checks in process functions
are mostly not necessary and redundant.

This is mostly cleanups and preparation for later commits, and should
not change any behavior.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/network/networkd-dhcp4.h b/src/network/networkd-dhcp4.h
index 830e39f66a..4e466ca4f9 100644
--- a/src/network/networkd-dhcp4.h
+++ b/src/network/networkd-dhcp4.h
@@ -25,7 +25,7 @@ int dhcp4_start(Link *link);
 int dhcp4_lease_lost(Link *link);
 int dhcp4_check_ready(Link *link);
 
-int request_process_dhcp4_client(Request *req);
+int dhcp4_process_request(Request *req, Link *link, void *userdata);
 int link_request_dhcp4_client(Link *link);
 
 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_client_identifier);