Fix functions with empty params (#19647)

* Fix functions with empty params

* Found a bunch more

1 files changed, 4 insertions, 4 deletions

diff --git a/quantum/quantum.c b/quantum/quantum.c
index 0fe54c60a7..0e69246f41 100644
--- a/quantum/quantum.c
+++ b/quantum/quantum.c
@@ -454,10 +454,10 @@ void update_tri_layer(uint8_t layer1, uint8_t layer2, uint8_t layer3) {
 }
 
 // TODO: remove legacy api
-void matrix_init_quantum() {
+void matrix_init_quantum(void) {
     matrix_init_kb();
 }
-void matrix_scan_quantum() {
+void matrix_scan_quantum(void) {
     matrix_scan_kb();
 }
 
@@ -465,9 +465,9 @@ void matrix_scan_quantum() {
 // Override these functions in your keymap file to play different tunes on
 // different events such as startup and bootloader jump
 
-__attribute__((weak)) void startup_user() {}
+__attribute__((weak)) void startup_user(void) {}
 
-__attribute__((weak)) void shutdown_user() {}
+__attribute__((weak)) void shutdown_user(void) {}
 
 void suspend_power_down_quantum(void) {
     suspend_power_down_kb();