diff --git a/kernel/audio/virtio_audio_pci.cpp b/kernel/audio/virtio_audio_pci.cpp
index 8e7791ac..e71f63a2 100644
--- a/kernel/audio/virtio_audio_pci.cpp
+++ b/kernel/audio/virtio_audio_pci.cpp
@@ -291,6 +291,7 @@ void VirtioAudioDriver::config_channel_maps(){
 void VirtioAudioDriver::handle_interrupt(){
     select_queue(&audio_dev, EVENT_QUEUE);
     struct virtq_used* used = (struct virtq_used*)(uintptr_t)audio_dev.common_cfg->queue_device;
+    // TODO: desc isn't used in this function, was it supposed to be?
     struct virtq_desc* desc = (struct virtq_desc*)(uintptr_t)audio_dev.common_cfg->queue_desc;
     struct virtq_avail* avail = (struct virtq_avail*)(uintptr_t)audio_dev.common_cfg->queue_driver;
 
diff --git a/kernel/input/dwc2.cpp b/kernel/input/dwc2.cpp
index 3394ba1e..dc853843 100644
--- a/kernel/input/dwc2.cpp
+++ b/kernel/input/dwc2.cpp
@@ -125,7 +125,7 @@ bool DWC2Driver::request_sized_descriptor(uint8_t address, uint8_t endpoint, uin
     usb_setup_packet packet = {
         .bmRequestType = rType,
         .bRequest = request,
-        .wValue = (type << 8) | descriptor_index,
+        .wValue = (uint16_t)((type << 8) | descriptor_index),
         .wIndex = wIndex,
         .wLength = descriptor_size
     };
diff --git a/kernel/input/input_dispatch.cpp b/kernel/input/input_dispatch.cpp
index 3611a701..422750ac 100644
--- a/kernel/input/input_dispatch.cpp
+++ b/kernel/input/input_dispatch.cpp
@@ -126,7 +126,7 @@ bool sys_shortcut_triggered(uint16_t pid, uint16_t sid){
 }
 
 bool input_init(){
-    for (int i = 0; i < 16; i++) shortcuts[i] = (shortcut){0};
+    for (int i = 0; i < 16; i++) shortcuts[i] = {};
     if (BOARD_TYPE == 2 && RPI_BOARD != 5){
         input_driver = new DWC2Driver();//TODO: QEMU & 3 Only
         return input_driver->init();
diff --git a/kernel/input/xhci.cpp b/kernel/input/xhci.cpp
index 7bcedafc..0df5a824 100644
--- a/kernel/input/xhci.cpp
+++ b/kernel/input/xhci.cpp
@@ -411,15 +411,13 @@ bool XHCIDriver::request_sized_descriptor(uint8_t address, uint8_t endpoint, uin
     usb_setup_packet packet = {
         .bmRequestType = rType,
         .bRequest = request,
-        .wValue = (type << 8) | descriptor_index,
+        .wValue = (uint16_t)((type << 8) | descriptor_index),
         .wIndex = wIndex,
         .wLength = descriptor_size
     };
 
     // kprintf("RT: %x R: %x V: %x I: %x L: %x",packet.bmRequestType,packet.bRequest,packet.wValue,packet.wIndex,packet.wLength);
 
-    bool is_in = (rType & 0x80) != 0;
-
     xhci_ring *transfer_ring = &endpoint_map[address << 8 | endpoint];
 
     trb* setup_trb = &transfer_ring->ring[transfer_ring->index++];
@@ -482,7 +480,7 @@ uint32_t XHCIDriver::calculate_interval(uint32_t speed, uint32_t received_interv
 
 	uint32_t i;
 	for (i = 3; i < 11; i++)
-		if (125 * (1 << i) >= 1000 * received_interval) break;
+		if (125u * (1 << i) >= 1000 * received_interval) break;
 
 	return i;
 }
diff --git a/kernel/networking/port_manager.c b/kernel/networking/port_manager.c
index 4fbd746d..8cda0ed2 100644
--- a/kernel/networking/port_manager.c
+++ b/kernel/networking/port_manager.c
@@ -6,10 +6,6 @@
 
 static port_entry_t g_port_table[PROTO_COUNT][MAX_PORTS];//tab proto/port
 
-static inline bool port_valid(uint32_t p) {
-    return p > 0 && p < MAX_PORTS;
-}
-
 static inline bool proto_valid(protocol_t proto) {
     return (uint32_t)proto < PROTO_COUNT;
 }
@@ -57,7 +53,7 @@ bool port_bind_manual(protocol_t proto,
                       uint16_t pid,
                       port_recv_handler_t handler)
 {
-    if (!proto_valid(proto) || !port_valid(port)) return false;
+    if (!proto_valid(proto)) return false;
     port_entry_t *e = &g_port_table[proto][port];
     if (e->used) return false;
     e->used = true;
@@ -70,7 +66,7 @@ bool port_unbind(protocol_t proto,
                  uint16_t port,
                  uint16_t pid)
 {
-    if (!proto_valid(proto) || !port_valid(port)) return false;
+    if (!proto_valid(proto)) return false;
     port_entry_t *e = &g_port_table[proto][port];
     if (!e->used || e->pid != pid) return false;
     e->used = false;
@@ -93,17 +89,17 @@ void port_unbind_all(uint16_t pid) {
 }
 
 bool port_is_bound(protocol_t proto, uint16_t port) {
-    if (!proto_valid(proto) || !port_valid(port)) return false;
+    if (!proto_valid(proto)) return false;
     return g_port_table[proto][port].used;
 }
 
 uint16_t port_owner_of(protocol_t proto, uint16_t port) {
-    if (!proto_valid(proto) || !port_valid(port)) return PORT_FREE_OWNER;
+    if (!proto_valid(proto)) return PORT_FREE_OWNER;
     return g_port_table[proto][port].pid;
 }
 
 port_recv_handler_t port_get_handler(protocol_t proto, uint16_t port) {
-    if (!proto_valid(proto) || !port_valid(port)) return NULL;
+    if (!proto_valid(proto)) return NULL;
     return g_port_table[proto][port].used
         ? g_port_table[proto][port].handler
         : NULL;