tree-wide: Mark some constants as unsigned

All these are really unsigned and used as such. This silences some
-Wformat-signedness warnings with gcc.

src/basic/user-util.h

@@ -13,12 +13,12 @@
 #include <unistd.h>
 
 /* Users managed by systemd-homed. See https://systemd.io/UIDS-GIDS for details how this range fits into the rest of the world */
-#define HOME_UID_MIN 60001
-#define HOME_UID_MAX 60513
+#define HOME_UID_MIN ((uid_t) 60001)
+#define HOME_UID_MAX ((uid_t) 60513)
 
 /* Users mapped from host into a container */
-#define MAP_UID_MIN 60514
-#define MAP_UID_MAX 60577
+#define MAP_UID_MIN ((uid_t) 60514)
+#define MAP_UID_MAX ((uid_t) 60577)
 
 bool uid_is_valid(uid_t uid);
 

src/cryptsetup/cryptsetup.c

@@ -43,8 +43,8 @@
 /* internal helper */
 #define ANY_LUKS "LUKS"
 /* as in src/cryptsetup.h */
-#define CRYPT_SECTOR_SIZE 512
-#define CRYPT_MAX_SECTOR_SIZE 4096
+#define CRYPT_SECTOR_SIZE 512U
+#define CRYPT_MAX_SECTOR_SIZE 4096U
 
 typedef enum PassphraseType {
         PASSPHRASE_NONE,

src/login/logind-dbus.c

@@ -65,7 +65,7 @@
  * to store arbitrary amounts either. As we are not stingy here, we
  * allow 4k.
  */
-#define WALL_MESSAGE_MAX 4096
+#define WALL_MESSAGE_MAX 4096U
 
 #define SHUTDOWN_SCHEDULE_FILE "/run/systemd/shutdown/scheduled"
 

src/network/netdev/bridge.h

@@ -4,8 +4,8 @@
 #include "conf-parser.h"
 #include "netdev.h"
 
-#define LINK_BRIDGE_PORT_PRIORITY_INVALID 128
-#define LINK_BRIDGE_PORT_PRIORITY_MAX 63
+#define LINK_BRIDGE_PORT_PRIORITY_INVALID 128U
+#define LINK_BRIDGE_PORT_PRIORITY_MAX 63U
 
 typedef struct Bridge {
         NetDev meta;

src/network/networkd-network.c

@@ -45,7 +45,7 @@
 #include "util.h"
 
 /* Let's assume that anything above this number is a user misconfiguration. */
-#define MAX_NTP_SERVERS 128
+#define MAX_NTP_SERVERS 128U
 
 static int network_resolve_netdev_one(Network *network, const char *name, NetDevKind kind, NetDev **ret) {
         const char *kind_string;

src/shared/journal-importer.h

@@ -23,7 +23,7 @@
 #define LINE_CHUNK 8*1024u
 
 /* The maximum number of fields in an entry */
-#define ENTRY_FIELD_COUNT_MAX 1024
+#define ENTRY_FIELD_COUNT_MAX 1024u
 
 typedef struct JournalImporter {
         int fd;