remove unused includes

This patch removes includes that are not used. The removals were found with
include-what-you-use which checks if any of the symbols from a header is
in use.

src/libsystemd-network/dhcp-identifier.c

@@ -19,7 +19,6 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#include <net/ethernet.h>
 
 #include "sd-id128.h"
 #include "libudev.h"
@@ -28,7 +27,6 @@
 #include "virt.h"
 #include "sparse-endian.h"
 #include "siphash24.h"
-#include "util.h"
 
 #include "dhcp6-protocol.h"
 #include "dhcp-identifier.h"

src/libsystemd-network/dhcp-identifier.h

@@ -21,7 +21,6 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#include <net/ethernet.h>
 
 #include "macro.h"
 #include "sparse-endian.h"

src/libsystemd-network/dhcp-network.c

@@ -18,7 +18,6 @@
 ***/
 
 #include <errno.h>
-#include <sys/types.h>
 #include <sys/socket.h>
 #include <string.h>
 #include <linux/if_packet.h>
@@ -26,7 +25,6 @@
 #include <net/ethernet.h>
 #include <net/if_arp.h>
 #include <stdio.h>
-#include <unistd.h>
 #include <linux/filter.h>
 
 #include "socket-util.h"

src/libsystemd-network/dhcp-packet.c

@@ -18,22 +18,14 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#include <stdlib.h>
 #include <errno.h>
 #include <string.h>
-#include <stdio.h>
 #include <net/ethernet.h>
 #include <net/if_arp.h>
-#include <sys/param.h>
 
-#include "util.h"
-#include "list.h"
 
 #include "dhcp-protocol.h"
-#include "dhcp-lease-internal.h"
 #include "dhcp-internal.h"
-#include "sd-dhcp-lease.h"
-#include "sd-dhcp-client.h"
 
 #define DHCP_CLIENT_MIN_OPTIONS_SIZE            312
 

src/libsystemd-network/lldp-network.c

@@ -27,7 +27,6 @@
 #include "lldp-tlv.h"
 #include "lldp-network.h"
 #include "lldp-internal.h"
-#include "sd-lldp.h"
 
 int lldp_network_bind_raw_socket(int ifindex) {
         typedef struct LLDPFrame {

src/libsystemd-network/network-internal.c

@@ -25,7 +25,6 @@
 
 #include "strv.h"
 #include "siphash24.h"
-#include "libudev-private.h"
 #include "dhcp-lease-internal.h"
 #include "log.h"
 #include "utf8.h"

src/libsystemd-network/network-internal.h

@@ -21,8 +21,6 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#include <netinet/ether.h>
-#include <netinet/in.h>
 #include <stdbool.h>
 
 #include "udev.h"

src/libsystemd-network/sd-dhcp-client.c

@@ -24,12 +24,9 @@
 #include <net/ethernet.h>
 #include <net/if_arp.h>
 #include <linux/if_infiniband.h>
-#include <netinet/ether.h>
-#include <sys/param.h>
 #include <sys/ioctl.h>
 
 #include "util.h"
-#include "list.h"
 #include "refcnt.h"
 #include "async.h"
 

src/libsystemd-network/sd-dhcp-lease.c

@@ -22,22 +22,15 @@
 #include <errno.h>
 #include <string.h>
 #include <stdio.h>
-#include <net/ethernet.h>
 #include <arpa/inet.h>
-#include <sys/param.h>
 
-#include "util.h"
-#include "list.h"
-#include "mkdir.h"
 #include "fileio.h"
 #include "unaligned.h"
 #include "in-addr-util.h"
 
 #include "dhcp-protocol.h"
-#include "dhcp-internal.h"
 #include "dhcp-lease-internal.h"
 #include "sd-dhcp-lease.h"
-#include "sd-dhcp-client.h"
 #include "network-internal.h"
 
 int sd_dhcp_lease_get_address(sd_dhcp_lease *lease, struct in_addr *addr) {

src/libsystemd-network/sd-dhcp-server.c

@@ -21,7 +21,6 @@
 ***/
 
 #include <sys/ioctl.h>
-#include <netinet/if_ether.h>
 
 #include "siphash24.h"
 

src/libsystemd-network/sd-lldp.c

@@ -24,16 +24,13 @@
 
 #include "siphash24.h"
 #include "hashmap.h"
-#include "event-util.h"
 
 #include "lldp-tlv.h"
 #include "lldp-port.h"
 #include "sd-lldp.h"
 #include "prioq.h"
-#include "strv.h"
 #include "lldp-internal.h"
 #include "lldp-util.h"
-#include "ether-addr-util.h"
 
 typedef enum LLDPAgentRXState {
         LLDP_AGENT_RX_WAIT_PORT_OPERATIONAL = 4,

src/libsystemd-network/sd-pppoe.c

@@ -22,7 +22,6 @@
 /* See RFC 2516 */
 
 #include <sys/ioctl.h>
-#include <linux/ppp_defs.h>
 #include <linux/ppp-ioctl.h>
 #include <net/if.h>
 #include <netinet/in.h>
@@ -36,7 +35,6 @@
 #include "socket-util.h"
 #include "async.h"
 #include "refcnt.h"
-#include "unaligned.h"
 #include "utf8.h"
 
 #define PPPOE_MAX_PACKET_SIZE 1484

src/libsystemd-network/test-dhcp-client.c

@@ -19,16 +19,12 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#include <stdlib.h>
-#include <assert.h>
 #include <errno.h>
 #include <stdio.h>
-#include <sys/types.h>
 #include <sys/socket.h>
 #include <unistd.h>
 
 #include "util.h"
-#include "socket-util.h"
 #include "sd-event.h"
 #include "event-util.h"
 

src/libsystemd-network/test-dhcp-option.c

@@ -3,7 +3,6 @@
 #include <stdbool.h>
 #include <errno.h>
 #include <string.h>
-#include <assert.h>
 
 #include "util.h"
 #include "macro.h"

src/libsystemd-network/test-dhcp-server.c

@@ -20,8 +20,6 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#include <netinet/if_ether.h>
-#include <assert.h>
 #include <errno.h>
 
 #include "sd-event.h"

src/libsystemd-network/test-lldp.c

@@ -21,13 +21,8 @@
 ***/
 
 #include <stdio.h>
-#include <stdlib.h>
 #include <string.h>
-#include <sys/socket.h>
-#include <linux/if.h>
-#include <linux/if_ether.h>
 #include <net/ethernet.h>
-#include <sys/types.h>
 #include <arpa/inet.h>
 
 #include "macro.h"

src/libsystemd-network/test-pppoe.c

@@ -20,22 +20,16 @@
 ***/
 
 #include <stdlib.h>
-#include <assert.h>
 #include <errno.h>
-#include <stdio.h>
-#include <sys/types.h>
-#include <sys/socket.h>
 #include <unistd.h>
 
 #include <linux/veth.h>
 #include <net/if.h>
 
 #include "util.h"
-#include "socket-util.h"
 #include "sd-event.h"
 #include "event-util.h"
 #include "sd-rtnl.h"
-#include "rtnl-util.h"
 #include "sd-pppoe.h"
 
 static void pppoe_handler(sd_pppoe *ppp, int event, void *userdata) {