Use a macro to compute the size of arrays at compile time (#18044)

* Add ARRAY_SIZE and CEILING utility macros

* Apply a coccinelle patch to use ARRAY_SIZE

* fix up some straggling items

* Fix 'make test:secure'

* Enhance ARRAY_SIZE macro to reject acting on pointers

The previous definition would not produce a diagnostic for
```
int *p;
size_t num_elem = ARRAY_SIZE(p)
```
but the new one will.

* explicitly get definition of ARRAY_SIZE

* Convert to ARRAY_SIZE when const is involved

The following spatch finds additional instances where the array is
const and the division is by the size of the type, not the size of
the first element:
```
@ rule5a using "empty.iso" @
type T;
const T[] E;
@@

- (sizeof(E)/sizeof(T))
+ ARRAY_SIZE(E)

@ rule6a using "empty.iso" @
type T;
const T[] E;
@@

- sizeof(E)/sizeof(T)
+ ARRAY_SIZE(E)
```

* New instances of ARRAY_SIZE added since initial spatch run

* Use `ARRAY_SIZE` in docs (found by grep)

* Manually use ARRAY_SIZE

hs_set is expected to be the same size as uint16_t, though it's made
of two 8-bit integers

* Just like char, sizeof(uint8_t) is guaranteed to be 1

This is at least true on any plausible system where qmk is actually used.

Per my understanding it's universally true, assuming that uint8_t exists:
https://stackoverflow.com/questions/48655310/can-i-assume-that-sizeofuint8-t-1

* Run qmk-format on core C files touched in this branch

Co-authored-by: Stefan Kerkmann <karlk90@pm.me>

60 files changed, 95 insertions, 93 deletions

diff --git a/keyboards/25keys/zinc/keymaps/ginjake/keymap.c b/keyboards/25keys/zinc/keymaps/ginjake/keymap.c
index 93dfc590e9..26190a2a91 100644
--- a/keyboards/25keys/zinc/keymaps/ginjake/keymap.c
+++ b/keyboards/25keys/zinc/keymaps/ginjake/keymap.c
@@ -333,7 +333,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
       aqours_num++;
       aqours_next_color_timer_count = 0;
       target_col = 0;
-      if (aqours_num == sizeof(aqours_h) / sizeof(int)) {
+      if (aqours_num == ARRAY_SIZE(aqours_h)) {
         aqours_num = 0;
       }
     }
diff --git a/keyboards/acheron/shark/beta/keymaps/gondolindrim/keymap.c b/keyboards/acheron/shark/beta/keymaps/gondolindrim/keymap.c
index cae98411d6..fd7f556b56 100755
--- a/keyboards/acheron/shark/beta/keymaps/gondolindrim/keymap.c
+++ b/keyboards/acheron/shark/beta/keymaps/gondolindrim/keymap.c
@@ -94,7 +94,7 @@ encoder_mode_t encoder_modes[] = {
 	// Insert your custom encoder mode here
 };
 
-#define NUM_ENCODER_MODES (sizeof(encoder_modes)/sizeof(encoder_modes[0]))
+#define NUM_ENCODER_MODES ARRAY_SIZE(encoder_modes)
 
 // This counter is used to track what encoder mode is being used at a certain time
 int encoder_mode_count = 0;
diff --git a/keyboards/adafruit/macropad/lib/ssd1306_sh1106.c b/keyboards/adafruit/macropad/lib/ssd1306_sh1106.c
index dc1289fdb1..1b05809640 100644
--- a/keyboards/adafruit/macropad/lib/ssd1306_sh1106.c
+++ b/keyboards/adafruit/macropad/lib/ssd1306_sh1106.c
@@ -94,8 +94,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #define OLED_ALL_BLOCKS_MASK (((((OLED_BLOCK_TYPE)1 << (OLED_BLOCK_COUNT - 1)) - 1) << 1) | 1)
 
-#define ARRAY_SIZE(arr) sizeof(arr)/sizeof(arr[0])
-
 // spi defines
 #define OLED_STATUS_SUCCESS SPI_STATUS_SUCCESS
 
diff --git a/keyboards/crkbd/keymaps/gotham/oled.c b/keyboards/crkbd/keymaps/gotham/oled.c
index c4ac5e736c..c285a37c5b 100644
--- a/keyboards/crkbd/keymaps/gotham/oled.c
+++ b/keyboards/crkbd/keymaps/gotham/oled.c
@@ -176,7 +176,7 @@ void add_keylog(uint16_t keycode) {
     keylog_str[i] = keylog_str[i - 1];
   }
 
-  if (keycode < (sizeof(code_to_name) / sizeof(char))) {
+  if (keycode < ARRAY_SIZE(code_to_name)) {
     keylog_str[0] = pgm_read_byte(&code_to_name[keycode]);
   }
 }
diff --git a/keyboards/crkbd/keymaps/thunderbird2086/oled.c b/keyboards/crkbd/keymaps/thunderbird2086/oled.c
index bee9bc26de..108f3e0cdd 100644
--- a/keyboards/crkbd/keymaps/thunderbird2086/oled.c
+++ b/keyboards/crkbd/keymaps/thunderbird2086/oled.c
@@ -189,7 +189,7 @@ void add_keylog(uint16_t keycode) {
         keylog_str[i] = keylog_str[i - 1];
     }
 
-    if (keycode < (sizeof(code_to_name) / sizeof(char))) {
+    if (keycode < ARRAY_SIZE(code_to_name)) {
         keylog_str[0] = pgm_read_byte(&code_to_name[keycode]);
     }
 }
diff --git a/keyboards/dm9records/plaid/keymaps/brickbots/keymap.c b/keyboards/dm9records/plaid/keymaps/brickbots/keymap.c
index 819b76e739..0442c930fe 100644
--- a/keyboards/dm9records/plaid/keymaps/brickbots/keymap.c
+++ b/keyboards/dm9records/plaid/keymaps/brickbots/keymap.c
@@ -242,7 +242,7 @@ layer_state_t layer_state_set_user(layer_state_t state) {
 void led_keypress_update(uint8_t led, uint8_t led_mode, uint16_t keycode, keyrecord_t *record) {
     switch (led_mode) {
       case LEDMODE_MODS:
-        for (int i=0;i<sizeof(modifiers) / sizeof(modifiers[0]);i++) {
+        for (int i=0;i<ARRAY_SIZE(modifiers);i++) {
           if(keycode==modifiers[i]) {
             if (record->event.pressed) {
               writePinHigh(led);
diff --git a/keyboards/dm9records/plaid/keymaps/default/keymap.c b/keyboards/dm9records/plaid/keymaps/default/keymap.c
index d96c250609..aa0bd8b093 100644
--- a/keyboards/dm9records/plaid/keymaps/default/keymap.c
+++ b/keyboards/dm9records/plaid/keymaps/default/keymap.c
@@ -245,7 +245,7 @@ layer_state_t layer_state_set_user(layer_state_t state) {
 void led_keypress_update(uint8_t led, uint8_t led_mode, uint16_t keycode, keyrecord_t *record) {
     switch (led_mode) {
       case LEDMODE_MODS:
-        for (int i=0;i<sizeof(modifiers) / sizeof(modifiers[0]);i++) {
+        for (int i=0;i<ARRAY_SIZE(modifiers);i++) {
           if(keycode==modifiers[i]) {
             if (record->event.pressed) {
               writePinHigh(led);
diff --git a/keyboards/dm9records/plaid/keymaps/stephen-huan/keymap.c b/keyboards/dm9records/plaid/keymaps/stephen-huan/keymap.c
index 354599f340..9a0e89bd89 100644
--- a/keyboards/dm9records/plaid/keymaps/stephen-huan/keymap.c
+++ b/keyboards/dm9records/plaid/keymaps/stephen-huan/keymap.c
@@ -184,7 +184,7 @@ layer_state_t layer_state_set_user(layer_state_t state) {
 void led_keypress_update(uint8_t led, uint8_t led_mode, uint16_t keycode, keyrecord_t *record) {
     switch (led_mode) {
       case LEDMODE_MODS:
-        for (int i=0;i<sizeof(modifiers) / sizeof(modifiers[0]);i++) {
+        for (int i=0;i<ARRAY_SIZE(modifiers);i++) {
           if(keycode==modifiers[i]) {
             if (record->event.pressed) {
               writePinHigh(led);
diff --git a/keyboards/dmqdesign/spin/keymaps/spidey3_pad/keymap.c b/keyboards/dmqdesign/spin/keymaps/spidey3_pad/keymap.c
index 8c9af7202b..77534b9a75 100644
--- a/keyboards/dmqdesign/spin/keymaps/spidey3_pad/keymap.c
+++ b/keyboards/dmqdesign/spin/keymaps/spidey3_pad/keymap.c
@@ -111,7 +111,7 @@ const rgblight_segment_t *const PROGMEM _rgb_layers[] = {
 };
 // clang-format off
 
-const uint8_t PROGMEM _n_rgb_layers = sizeof(_rgb_layers) / sizeof(_rgb_layers[0]) - 1;
+const uint8_t PROGMEM _n_rgb_layers = ARRAY_SIZE(_rgb_layers) - 1;
 
 void clear_rgb_layers(void) {
     dprint("clear_rgb_layers()\n");
diff --git a/keyboards/evolv/keymaps/gondolindrim/keymap.c b/keyboards/evolv/keymaps/gondolindrim/keymap.c
index 3ab66bd056..bf0944fbd1 100755
--- a/keyboards/evolv/keymaps/gondolindrim/keymap.c
+++ b/keyboards/evolv/keymaps/gondolindrim/keymap.c
@@ -129,7 +129,7 @@ const encoder_mode_t encoder_modes[] = {
 	// Insert your custom encoder mode here
 };
 
-#define NUM_ENCODER_MODES (sizeof(encoder_modes)/sizeof(encoder_modes[0])) // DO NOT CHANGE THIS. NUM_ENCODER_MODES calculates how many modes there are.
+#define NUM_ENCODER_MODES ARRAY_SIZE(encoder_modes) // DO NOT CHANGE THIS. NUM_ENCODER_MODES calculates how many modes there are.
 
 // This counter is used to track what encoder mode is being used at a certain time
 int encoder_mode_count = 0;
diff --git a/keyboards/gboards/butterstick/keymaps/default/keymap.c b/keyboards/gboards/butterstick/keymaps/default/keymap.c
index 749e9ba071..d0c6af65df 100644
--- a/keyboards/gboards/butterstick/keymaps/default/keymap.c
+++ b/keyboards/gboards/butterstick/keymaps/default/keymap.c
@@ -180,4 +180,4 @@ uint32_t processQwerty(bool lookup) {
 }
 
 // Don't fuck with this, thanks.
-size_t keymapsCount  = sizeof(keymaps)/sizeof(keymaps[0]);
+size_t keymapsCount  = ARRAY_SIZE(keymaps);
diff --git a/keyboards/gboards/butterstick/sten.c b/keyboards/gboards/butterstick/sten.c
index 197abaf92f..8820127848 100644
--- a/keyboards/gboards/butterstick/sten.c
+++ b/keyboards/gboards/butterstick/sten.c
@@ -21,7 +21,7 @@ uint32_t tChord			= 0;		// Protects state of cChord
 
 #ifndef STENOLAYERS
 uint32_t stenoLayers[] = { PWR };
-size_t 	 stenoLayerCount = sizeof(stenoLayers)/sizeof(stenoLayers[0]);
+size_t 	 stenoLayerCount = ARRAY_SIZE(stenoLayers);
 #endif
 
 // Mode state
diff --git a/keyboards/gboards/engine/keymap_engine.h b/keyboards/gboards/engine/keymap_engine.h
index c8a42a052b..599c1ca3e4 100644
--- a/keyboards/gboards/engine/keymap_engine.h
+++ b/keyboards/gboards/engine/keymap_engine.h
@@ -114,8 +114,8 @@ void testCollisions(void) {
 #include "dicts.def"
 
 // Get size data back into the engine
-size_t funcsLen   = sizeof(funDict) / sizeof(funDict[0]);
-size_t stringLen  = sizeof(strDict) / sizeof(strDict[0]);
-size_t keyLen     = sizeof(keyDict) / sizeof(keyDict[0]);
-size_t comboLen   = sizeof(cmbDict) / sizeof(cmbDict[0]);
-size_t specialLen = sizeof(spcDict) / sizeof(spcDict[0]);
+size_t funcsLen   = ARRAY_SIZE(funDict);
+size_t stringLen  = ARRAY_SIZE(strDict);
+size_t keyLen     = ARRAY_SIZE(keyDict);
+size_t comboLen   = ARRAY_SIZE(cmbDict);
+size_t specialLen = ARRAY_SIZE(spcDict);
diff --git a/keyboards/gboards/g/keymap_engine.h b/keyboards/gboards/g/keymap_engine.h
index 93a4423340..055b5941e4 100644
--- a/keyboards/gboards/g/keymap_engine.h
+++ b/keyboards/gboards/g/keymap_engine.h
@@ -115,8 +115,8 @@ void testCollisions(void) {
 #include "dicts.def"
 
 // Get size data back into the engine
-size_t funcsLen   = sizeof(funDict) / sizeof(funDict[0]);
-size_t stringLen  = sizeof(strDict) / sizeof(strDict[0]);
-size_t keyLen     = sizeof(keyDict) / sizeof(keyDict[0]);
-size_t comboLen   = sizeof(cmbDict) / sizeof(cmbDict[0]);
-size_t specialLen = sizeof(spcDict) / sizeof(spcDict[0]);
+size_t funcsLen   = ARRAY_SIZE(funDict);
+size_t stringLen  = ARRAY_SIZE(strDict);
+size_t keyLen     = ARRAY_SIZE(keyDict);
+size_t comboLen   = ARRAY_SIZE(cmbDict);
+size_t specialLen = ARRAY_SIZE(spcDict);
diff --git a/keyboards/gboards/georgi/keymaps/colemak-dh/keymap.c b/keyboards/gboards/georgi/keymaps/colemak-dh/keymap.c
index 29b35f6abd..af7edc2a9b 100644
--- a/keyboards/gboards/georgi/keymaps/colemak-dh/keymap.c
+++ b/keyboards/gboards/georgi/keymaps/colemak-dh/keymap.c
@@ -302,5 +302,5 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 };
 
 // Don't fuck with this, thanks.
-size_t keymapsCount  = sizeof(keymaps)/sizeof(keymaps[0]);
-size_t stenoLayerCount = sizeof(stenoLayers)/sizeof(stenoLayers[0]);
+size_t keymapsCount  = ARRAY_SIZE(keymaps);
+size_t stenoLayerCount = ARRAY_SIZE(stenoLayers);
diff --git a/keyboards/gboards/georgi/keymaps/default-flipped/keymap.c b/keyboards/gboards/georgi/keymaps/default-flipped/keymap.c
index 09243f2a24..a3324b11cd 100644
--- a/keyboards/gboards/georgi/keymaps/default-flipped/keymap.c
+++ b/keyboards/gboards/georgi/keymaps/default-flipped/keymap.c
@@ -234,4 +234,4 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 };
 
 // Don't fuck with this, thanks.
-size_t keymapsCount  = sizeof(keymaps)/sizeof(keymaps[0]);
+size_t keymapsCount  = ARRAY_SIZE(keymaps);
diff --git a/keyboards/gboards/georgi/keymaps/default/keymap.c b/keyboards/gboards/georgi/keymaps/default/keymap.c
index 93c551af27..78964dc840 100644
--- a/keyboards/gboards/georgi/keymaps/default/keymap.c
+++ b/keyboards/gboards/georgi/keymaps/default/keymap.c
@@ -244,4 +244,4 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 };
 
 // Don't fuck with this, thanks.
-size_t keymapsCount  = sizeof(keymaps)/sizeof(keymaps[0]);
+size_t keymapsCount  = ARRAY_SIZE(keymaps);
diff --git a/keyboards/gboards/georgi/keymaps/minimal/keymap.c b/keyboards/gboards/georgi/keymaps/minimal/keymap.c
index e9294c5cc8..c4e78033bd 100644
--- a/keyboards/gboards/georgi/keymaps/minimal/keymap.c
+++ b/keyboards/gboards/georgi/keymaps/minimal/keymap.c
@@ -219,4 +219,4 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     )
 };
 // Don't fuck with this, thanks.
-size_t keymapsCount  = sizeof(keymaps)/sizeof(keymaps[0]);
+size_t keymapsCount  = ARRAY_SIZE(keymaps);
diff --git a/keyboards/gboards/georgi/keymaps/norman/keymap.c b/keyboards/gboards/georgi/keymaps/norman/keymap.c
index 4591aab22f..870e460e2c 100644
--- a/keyboards/gboards/georgi/keymaps/norman/keymap.c
+++ b/keyboards/gboards/georgi/keymaps/norman/keymap.c
@@ -263,4 +263,4 @@ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,       KC_PGDN, KC_LEFT, KC
 			  KC_TRNS, KC_TRNS, KC_TRNS,	                        KC_TRNS, KC_TRNS, KC_TRNS)
 };
 // Don't fuck with this, thanks.
-size_t keymapsCount  = sizeof(keymaps)/sizeof(keymaps[0]);
+size_t keymapsCount  = ARRAY_SIZE(keymaps);
diff --git a/keyboards/gboards/georgi/sten.c b/keyboards/gboards/georgi/sten.c
index c7469b6394..bd96dee758 100644
--- a/keyboards/gboards/georgi/sten.c
+++ b/keyboards/gboards/georgi/sten.c
@@ -21,7 +21,7 @@ uint32_t tChord			= 0;		// Protects state of cChord
 
 #ifndef STENOLAYERS
 uint32_t stenoLayers[] = { PWR };
-size_t 	 stenoLayerCount = sizeof(stenoLayers)/sizeof(stenoLayers[0]);
+size_t 	 stenoLayerCount = ARRAY_SIZE(stenoLayers);
 #endif
 
 // Mode state
diff --git a/keyboards/gmmk/pro/rev1/ansi/keymaps/cedrikl/keymap.c b/keyboards/gmmk/pro/rev1/ansi/keymaps/cedrikl/keymap.c
index 09f8aa147a..3aa3fd828e 100644
--- a/keyboards/gmmk/pro/rev1/ansi/keymaps/cedrikl/keymap.c
+++ b/keyboards/gmmk/pro/rev1/ansi/keymaps/cedrikl/keymap.c
@@ -107,16 +107,22 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 
     // Capslock, Scroll lock and Numlock  indicator on Left side lights.
     void rgb_matrix_indicators_advanced_user(uint8_t led_min, uint8_t led_max) {
-        loop_colorset(LED_REGION_A,      (sizeof(LED_REGION_A) / sizeof(LED_REGION_A[0])),           hsv_cl_blue);
-        loop_colorset(LED_REGION_B,      (sizeof(LED_REGION_B) / sizeof(LED_REGION_B[0])),           hsv_cl_purple);
-        loop_colorset(LED_REGION_L_SIDE, (sizeof(LED_REGION_L_SIDE) / sizeof(LED_REGION_L_SIDE[0])), hsv_cl_purple);
-        loop_colorset(LED_REGION_R_SIDE, (sizeof(LED_REGION_R_SIDE) / sizeof(LED_REGION_R_SIDE[0])), hsv_cl_purple);
+        loop_colorset(LED_REGION_A,      ARRAY_SIZE(LED_REGION_A),
+                                 hsv_cl_blue);
+        loop_colorset(LED_REGION_B,      ARRAY_SIZE(LED_REGION_B),
+                                 hsv_cl_purple);
+        loop_colorset(LED_REGION_L_SIDE, ARRAY_SIZE(LED_REGION_L_SIDE),
+                      hsv_cl_purple);
+        loop_colorset(LED_REGION_R_SIDE, ARRAY_SIZE(LED_REGION_R_SIDE),
+                      hsv_cl_purple);
 
         switch(get_highest_layer(layer_state)){  // special handling per layer
             case 1:  //layer 1
                 //rgb_matrix_set_color_all(RGB_AZURE);
-                loop_colorset(LED_REGION_NUMPAD, (sizeof(LED_REGION_NUMPAD) / sizeof(LED_REGION_NUMPAD[0])), hsv_cl_numpad);
-                loop_colorset(LED_REGION_OTHER,  (sizeof(LED_REGION_OTHER) / sizeof(LED_REGION_OTHER[0])),   hsv_cl_mods);
+                loop_colorset(LED_REGION_NUMPAD,
+                              ARRAY_SIZE(LED_REGION_NUMPAD), hsv_cl_numpad);
+                loop_colorset(LED_REGION_OTHER,  ARRAY_SIZE(LED_REGION_OTHER),
+                                 hsv_cl_mods);
             break;
             default: //layer 0
                 //
@@ -148,7 +154,8 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
             rgb_matrix_set_color(LED_L6,   bad_rgb.r, bad_rgb.g, bad_rgb.b);
             rgb_matrix_set_color(LED_L7,   bad_rgb.r, bad_rgb.g, bad_rgb.b);
             rgb_matrix_set_color(LED_L8,   bad_rgb.r, bad_rgb.g, bad_rgb.b);
-            loop_colorset(LED_REGION_CAPS, (sizeof(LED_REGION_CAPS) / sizeof(LED_REGION_CAPS[0])), hsv_cl_bad);
+            loop_colorset(LED_REGION_CAPS, ARRAY_SIZE(LED_REGION_CAPS),
+                          hsv_cl_bad);
         }
     }
 #endif
diff --git a/keyboards/gmmk/pro/rev1/ansi/keymaps/gourdo1/keymap.c b/keyboards/gmmk/pro/rev1/ansi/keymaps/gourdo1/keymap.c
index ab98693649..9b20399e00 100644
--- a/keyboards/gmmk/pro/rev1/ansi/keymaps/gourdo1/keymap.c
+++ b/keyboards/gmmk/pro/rev1/ansi/keymaps/gourdo1/keymap.c
@@ -538,7 +538,7 @@ void rgb_matrix_indicators_advanced_user(uint8_t led_min, uint8_t led_max) {
 
         } else if (paddle_lives == 0) {
             // Game over
-            for (uint8_t i = 0; i < sizeof(LED_GAME_OVER) / sizeof(LED_GAME_OVER[0]); i++) {
+            for (uint8_t i = 0; i < ARRAY_SIZE(LED_GAME_OVER); i++) {
                 rgb_matrix_set_color(LED_GAME_OVER[i], RGB_RED);
             }
 
diff --git a/keyboards/gmmk/pro/rev1/ansi/keymaps/paddlegame/keymap.c b/keyboards/gmmk/pro/rev1/ansi/keymaps/paddlegame/keymap.c
index e59db7b984..164ff67e22 100644
--- a/keyboards/gmmk/pro/rev1/ansi/keymaps/paddlegame/keymap.c
+++ b/keyboards/gmmk/pro/rev1/ansi/keymaps/paddlegame/keymap.c
@@ -201,15 +201,15 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 				else { ++rgb_value.r; }
 			}
 			
-            for (uint8_t i=0; i<sizeof(LED_RGB)/sizeof(LED_RGB[0]); i++) {
+            for (uint8_t i=0; i<ARRAY_SIZE(LED_RGB); i++) {
                 rgb_matrix_set_color(LED_RGB[i], rgb_value.r, rgb_value.g, rgb_value.b);
             }
 			
-            for (uint8_t i=0; i<sizeof(LED_WHITE)/sizeof(LED_WHITE[0]); i++) {
+            for (uint8_t i=0; i<ARRAY_SIZE(LED_WHITE); i++) {
                 rgb_matrix_set_color(LED_WHITE[i], RGB_WHITE);
             }
 
-            for (uint8_t i=0; i<sizeof(LED_GREEN)/sizeof(LED_GREEN[0]); i++) {
+            for (uint8_t i=0; i<ARRAY_SIZE(LED_GREEN); i++) {
                 rgb_matrix_set_color(LED_GREEN[i], RGB_GREEN);
             }
 			
@@ -274,7 +274,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 
 			} else if (paddle_lives == 0) {
 				// Game over
-				for (uint8_t i=0; i<sizeof(LED_GAME_OVER)/sizeof(LED_GAME_OVER[0]); i++) {
+				for (uint8_t i=0; i<ARRAY_SIZE(LED_GAME_OVER); i++) {
 					rgb_matrix_set_color(LED_GAME_OVER[i], RGB_RED);
 				}
 			
@@ -439,12 +439,12 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 
             rgb_matrix_set_color(LED_CAPS, RGB_WHITE);
             if (caps_flash_on) {
-				for (uint8_t i=0; i<sizeof(LED_SIDE_LEFT)/sizeof(LED_SIDE_LEFT[0]); i++) {
+				for (uint8_t i=0; i<ARRAY_SIZE(LED_SIDE_LEFT); i++) {
 					rgb_matrix_set_color(LED_SIDE_LEFT[i], RGB_RED);
 					rgb_matrix_set_color(LED_SIDE_RIGHT[i], RGB_RED);
 				}
 			} else {
-				for (uint8_t i=0; i<sizeof(LED_SIDE_LEFT)/sizeof(LED_SIDE_LEFT[0]); i++) {
+				for (uint8_t i=0; i<ARRAY_SIZE(LED_SIDE_LEFT); i++) {
 					rgb_matrix_set_color(LED_SIDE_LEFT[i], 0, 0, 0);
 					rgb_matrix_set_color(LED_SIDE_RIGHT[i], 0, 0, 0);
 				}
diff --git a/keyboards/gmmk/pro/rev1/iso/keymaps/chofstede/keymap.c b/keyboards/gmmk/pro/rev1/iso/keymaps/chofstede/keymap.c
index b28809fdf6..fd941883c5 100644
--- a/keyboards/gmmk/pro/rev1/iso/keymaps/chofstede/keymap.c
+++ b/keyboards/gmmk/pro/rev1/iso/keymaps/chofstede/keymap.c
@@ -84,7 +84,7 @@ void rgb_matrix_indicators_advanced_user(uint8_t led_min, uint8_t led_max) {
         }
     HSV tempHSV = {.h = 0, .s = 255, .v = current_value};
     RGB tempRGB = hsv_to_rgb(tempHSV);
-    for (uint8_t i = 0; i < sizeof(left_side_leds) / sizeof(left_side_leds[0]); i++) {
+    for (uint8_t i = 0; i < ARRAY_SIZE(left_side_leds); i++) {
         rgb_matrix_set_color(left_side_leds[i], tempRGB.r, tempRGB.g, tempRGB.b);
         rgb_matrix_set_color(right_side_leds[i], tempRGB.r, tempRGB.g, tempRGB.b);
         }
@@ -95,7 +95,7 @@ void rgb_matrix_indicators_advanced_user(uint8_t led_min, uint8_t led_max) {
        case 2:  //layer one
          break;
        case 1:
-         for (uint8_t i = 0; i < sizeof(l2_functions) / sizeof(l2_functions[0]); i++) {
+         for (uint8_t i = 0; i < ARRAY_SIZE(l2_functions); i++) {
              RGB_MATRIX_INDICATOR_SET_COLOR(l2_functions[i], 255, 0, 0);
          }
          break;
diff --git a/keyboards/gmmk/pro/rev1/iso/keymaps/gourdo1/keymap.c b/keyboards/gmmk/pro/rev1/iso/keymaps/gourdo1/keymap.c
index 30e8fc5f44..004a8c2014 100644
--- a/keyboards/gmmk/pro/rev1/iso/keymaps/gourdo1/keymap.c
+++ b/keyboards/gmmk/pro/rev1/iso/keymaps/gourdo1/keymap.c
@@ -551,7 +551,7 @@ void rgb_matrix_indicators_advanced_user(uint8_t led_min, uint8_t led_max) {
 
         } else if (paddle_lives == 0) {
             // Game over
-            for (uint8_t i = 0; i < sizeof(LED_GAME_OVER) / sizeof(LED_GAME_OVER[0]); i++) {
+            for (uint8_t i = 0; i < ARRAY_SIZE(LED_GAME_OVER); i++) {
                 rgb_matrix_set_color(LED_GAME_OVER[i], RGB_RED);
             }
 
diff --git a/keyboards/gopolar/gg86/keymaps/horrortroll/keymap_stuff.h b/keyboards/gopolar/gg86/keymaps/horrortroll/keymap_stuff.h
index ad7a3238ce..e5f5c91151 100644
--- a/keyboards/gopolar/gg86/keymaps/horrortroll/keymap_stuff.h
+++ b/keyboards/gopolar/gg86/keymaps/horrortroll/keymap_stuff.h
@@ -118,7 +118,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
     {{205, 250, 255}, {140, 215, 125}, false },
     };
 
-    uint8_t gp_length = sizeof(gradient_presets)/sizeof(gradient_presets[0]);
+    uint8_t gp_length = ARRAY_SIZE(gradient_presets);
 
     switch (keycode) {
         case G1_HUI:
diff --git a/keyboards/gopolar/gg86/lib/wave.h b/keyboards/gopolar/gg86/lib/wave.h
index 11a3198ab1..f4e5e5052c 100644
--- a/keyboards/gopolar/gg86/lib/wave.h
+++ b/keyboards/gopolar/gg86/lib/wave.h
@@ -69,7 +69,7 @@ void add_keylog(uint16_t keycode) {
         keycode = 0;
     }
 
-    if (keycode < (sizeof(code_to_name) / sizeof(char))) {
+    if (keycode < ARRAY_SIZE(code_to_name)) {
         char log_char = pgm_read_byte(&code_to_name[keycode]);
 
         for (uint8_t j = 0; j < OLED_FONT_WIDTH; j++) {
diff --git a/keyboards/handwired/lagrange/keymaps/dpapavas/keymap.c b/keyboards/handwired/lagrange/keymaps/dpapavas/keymap.c
index c2eb4406d1..bc5b025b48 100644
--- a/keyboards/handwired/lagrange/keymaps/dpapavas/keymap.c
+++ b/keyboards/handwired/lagrange/keymaps/dpapavas/keymap.c
@@ -191,8 +191,8 @@ void keyboard_post_init_user(void) {
     const pin_t pins[] = {D0, D1, D2};
     uint8_t i, j;
 
-    for (i = 0 ; i < sizeof(pins) / sizeof(pins[0]) + 2 ; i += 1) {
-        for (j = 0 ; j < sizeof(pins) / sizeof(pins[0]) ; j += 1) {
+    for (i = 0 ; i < ARRAY_SIZE(pins) + 2 ; i += 1) {
+        for (j = 0 ; j < ARRAY_SIZE(pins); j += 1) {
             setPinOutput(pins[j]);
             writePin(pins[j], (j == i || j == i - 1));
         }
diff --git a/keyboards/handwired/myskeeb/oled.c b/keyboards/handwired/myskeeb/oled.c
index 081ca8395a..3f43590b8e 100644
--- a/keyboards/handwired/myskeeb/oled.c
+++ b/keyboards/handwired/myskeeb/oled.c
@@ -183,7 +183,7 @@ void add_keylog(uint16_t keycode) {
         keylog_str[i] = keylog_str[i - 1];
     }
 
-    if (keycode < (sizeof(code_to_name) / sizeof(char))) {
+    if (keycode < ARRAY_SIZE(code_to_name)) {
         keylog_str[0] = pgm_read_byte(&code_to_name[keycode]);
     }
 }
diff --git a/keyboards/handwired/nicekey/keymaps/default/keymap.c b/keyboards/handwired/nicekey/keymaps/default/keymap.c
index d7539a5c17..a4391eaa30 100644
--- a/keyboards/handwired/nicekey/keymaps/default/keymap.c
+++ b/keyboards/handwired/nicekey/keymaps/default/keymap.c
@@ -116,7 +116,7 @@ PGM_P const sentences[] PROGMEM = {
 
 bool process_record_user(uint16_t keycode, keyrecord_t *record) {
     if (record->event.pressed) {
-        int sentences_size = sizeof(sentences) / sizeof(sentences[0]);
+        int sentences_size = ARRAY_SIZE(sentences);
         int i = rand() % sentences_size;
 
         switch (keycode) {
diff --git a/keyboards/handwired/onekey/keymaps/chibios_waiting_test/keymap.c b/keyboards/handwired/onekey/keymaps/chibios_waiting_test/keymap.c
index ecf67d3b3c..65983c8dd8 100644
--- a/keyboards/handwired/onekey/keymaps/chibios_waiting_test/keymap.c
+++ b/keyboards/handwired/onekey/keymaps/chibios_waiting_test/keymap.c
@@ -34,11 +34,11 @@ static const uint32_t waiting_values[] = {0, 1, 5, 10, 25, 50, 100, 150, 200, 50
 void housekeeping_task_user(void) {
     static uint32_t last_bench = 0;
     if (timer_elapsed32(last_bench) > 500) {
-        for (int i = 0; i < (sizeof(waiting_values) / sizeof(waiting_values[0])); i++) {
+        for (int i = 0; i < ARRAY_SIZE(waiting_values); i++) {
             wait_us_polling_with_strobe(waiting_values[i]);
             wait_us(10);
         }
-        for (int i = 0; i < (sizeof(waiting_values) / sizeof(waiting_values[0])); i++) {
+        for (int i = 0; i < ARRAY_SIZE(waiting_values); i++) {
             wait_us_yield_with_strobe(waiting_values[i]);
             wait_us(10);
         }
diff --git a/keyboards/handwired/promethium/keymaps/default/keymap.c b/keyboards/handwired/promethium/keymaps/default/keymap.c
index 77f83361e6..fcfcf51f24 100644
--- a/keyboards/handwired/promethium/keymaps/default/keymap.c
+++ b/keyboards/handwired/promethium/keymaps/default/keymap.c
@@ -55,7 +55,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #endif
 #include "outputselect.h"
 #include "led.h"
-#define COUNT(x) (sizeof (x) / sizeof (*(x)))
+#define COUNT(x) ARRAY_SIZE((x))
 
 #define KC_WWWB KC_WWW_BACK
 #define KC_WWWF KC_WWW_FORWARD
diff --git a/keyboards/handwired/promethium/keymaps/priyadi/keymap.c b/keyboards/handwired/promethium/keymaps/priyadi/keymap.c
index 31ce811e53..4df95111a7 100644
--- a/keyboards/handwired/promethium/keymaps/priyadi/keymap.c
+++ b/keyboards/handwired/promethium/keymaps/priyadi/keymap.c
@@ -57,7 +57,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "outputselect.h"
 #endif
 #include "led.h"
-#define COUNT(x) (sizeof (x) / sizeof (*(x)))
+#define COUNT(x) ARRAY_SIZE((x))
 
 #define KC_WWWB KC_WWW_BACK
 #define KC_WWWF KC_WWW_FORWARD
diff --git a/keyboards/handwired/symmetric70_proto/matrix_debug/matrix.c b/keyboards/handwired/symmetric70_proto/matrix_debug/matrix.c
index ba0018a70f..7e15761a98 100644
--- a/keyboards/handwired/symmetric70_proto/matrix_debug/matrix.c
+++ b/keyboards/handwired/symmetric70_proto/matrix_debug/matrix.c
@@ -159,7 +159,7 @@ static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row)
         do {
             MATRIX_DEBUG_DELAY_START();
             is_pressed = false;
-            for (uint8_t i = 0; i < sizeof(delay_ports) / sizeof(pin_t); i++) {
+            for (uint8_t i = 0; i < ARRAY_SIZE(delay_ports); i++) {
 #            ifdef MATRIX_IO_DELAY_MULSEL
                 writePin(MATRIX_MUL_SELECT, delay_sel[i]);
                 waitInputPinDelay();
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/default/keymap_stuff.h b/keyboards/horrortroll/handwired_k552/keymaps/default/keymap_stuff.h
index a97b46e5e4..8c4f9d0d4b 100644
--- a/keyboards/horrortroll/handwired_k552/keymaps/default/keymap_stuff.h
+++ b/keyboards/horrortroll/handwired_k552/keymaps/default/keymap_stuff.h
@@ -110,7 +110,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
     {{205, 250, 255}, {140, 215, 125}, false },
     };
 
-    uint8_t gp_length = sizeof(gradient_presets)/sizeof(gradient_presets[0]);
+    uint8_t gp_length = ARRAY_SIZE(gradient_presets);
 
     switch (keycode) {
         case G1_HUI:
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/via/keymap_stuff.h b/keyboards/horrortroll/handwired_k552/keymaps/via/keymap_stuff.h
index a97b46e5e4..8c4f9d0d4b 100644
--- a/keyboards/horrortroll/handwired_k552/keymaps/via/keymap_stuff.h
+++ b/keyboards/horrortroll/handwired_k552/keymaps/via/keymap_stuff.h
@@ -110,7 +110,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
     {{205, 250, 255}, {140, 215, 125}, false },
     };
 
-    uint8_t gp_length = sizeof(gradient_presets)/sizeof(gradient_presets[0]);
+    uint8_t gp_length = ARRAY_SIZE(gradient_presets);
 
     switch (keycode) {
         case G1_HUI:
diff --git a/keyboards/horrortroll/handwired_k552/lib/wave.c b/keyboards/horrortroll/handwired_k552/lib/wave.c
index 79b4e0ced7..700f73aee5 100644
--- a/keyboards/horrortroll/handwired_k552/lib/wave.c
+++ b/keyboards/horrortroll/handwired_k552/lib/wave.c
@@ -68,7 +68,7 @@ void add_keylog(uint16_t keycode) {
         keycode = 0;
     }
 
-    if (keycode < (sizeof(code_to_name) / sizeof(char))) {
+    if (keycode < ARRAY_SIZE(code_to_name)) {
         char log_char = pgm_read_byte(&code_to_name[keycode]);
 
         for (uint8_t j = 0; j < OLED_FONT_WIDTH; j++) {
diff --git a/keyboards/lfkeyboards/lfkpad/keymaps/pascalpfeil/keymap.c b/keyboards/lfkeyboards/lfkpad/keymaps/pascalpfeil/keymap.c
index 667e8859e2..38eb656892 100644
--- a/keyboards/lfkeyboards/lfkpad/keymaps/pascalpfeil/keymap.c
+++ b/keyboards/lfkeyboards/lfkpad/keymaps/pascalpfeil/keymap.c
@@ -58,7 +58,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 };
 
 const uint8_t number_leds[] = {8, 9, 10, 11, 12, 13, 15, 16, 17};
-const uint8_t number_leds_size = sizeof(number_leds) / sizeof(uint8_t);
+const uint8_t number_leds_size = ARRAY_SIZE(number_leds);
 
 bool led_update_user(led_t led_state) {
     for (uint8_t i = 0; i < number_leds_size; i++)
diff --git a/keyboards/massdrop/ctrl/keymaps/responsive_pattern/keymap.c b/keyboards/massdrop/ctrl/keymaps/responsive_pattern/keymap.c
index ddcf30b68d..eee2eaf628 100644
--- a/keyboards/massdrop/ctrl/keymaps/responsive_pattern/keymap.c
+++ b/keyboards/massdrop/ctrl/keymaps/responsive_pattern/keymap.c
@@ -129,8 +129,7 @@ static uint8_t COLOR_PATTERNS[][COLOR_PATTERN_RGB_COUNT][3] = {
         { 66,  66,  66}, { 45,  45,  45}, { 23,  23,  23},
     },
 };
-static const uint8_t COLOR_PATTERNS_COUNT = (
-        sizeof(COLOR_PATTERNS) / sizeof(COLOR_PATTERNS[0]));
+static const uint8_t COLOR_PATTERNS_COUNT = ARRAY_SIZE(COLOR_PATTERNS);
 
 /**
  * trimed down version of `ISSI3733_LED_MAP`:
diff --git a/keyboards/mechwild/mercutio/keymaps/fearless_spiff/keymap.c b/keyboards/mechwild/mercutio/keymaps/fearless_spiff/keymap.c
index 50b1b6471c..9dbd4d3f19 100644
--- a/keyboards/mechwild/mercutio/keymaps/fearless_spiff/keymap.c
+++ b/keyboards/mechwild/mercutio/keymaps/fearless_spiff/keymap.c
@@ -83,7 +83,7 @@ static const encoder_key PROGMEM encoder_keys[] = {
     {"Play", "", "", KC_MEDIA_PLAY_PAUSE}
 };
 
-#define NUMBER_OF_ENCODER_KEYS sizeof(encoder_keys)/sizeof(encoder_keys[0])
+#define NUMBER_OF_ENCODER_KEYS ARRAY_SIZE(encoder_keys)
 
 static uint8_t selected_encoder_key_id = 0;
 static encoder_key selected_encoder_key;
diff --git a/keyboards/mechwild/mercutio/keymaps/fearless_spiff_en/keymap.c b/keyboards/mechwild/mercutio/keymaps/fearless_spiff_en/keymap.c
index 267d3add14..9b28c68672 100644
--- a/keyboards/mechwild/mercutio/keymaps/fearless_spiff_en/keymap.c
+++ b/keyboards/mechwild/mercutio/keymaps/fearless_spiff_en/keymap.c
@@ -82,7 +82,7 @@ static const encoder_key PROGMEM encoder_keys[] = {
     {"Play", "", "", KC_MEDIA_PLAY_PAUSE}
 };
 
-#define NUMBER_OF_ENCODER_KEYS sizeof(encoder_keys)/sizeof(encoder_keys[0])
+#define NUMBER_OF_ENCODER_KEYS ARRAY_SIZE(encoder_keys)
 
 static uint8_t selected_encoder_key_id = 0;
 static encoder_key selected_encoder_key;
diff --git a/keyboards/mechwild/mercutio/keymaps/jonavin/keymap.c b/keyboards/mechwild/mercutio/keymaps/jonavin/keymap.c
index 5c22abee3f..a8f1d488d4 100755
--- a/keyboards/mechwild/mercutio/keymaps/jonavin/keymap.c
+++ b/keyboards/mechwild/mercutio/keymaps/jonavin/keymap.c
@@ -71,7 +71,7 @@ static const keycodedescType PROGMEM keyselection[] = {
         {"FLASH",   QK_BOOT},   // firmware flash mode
 };
 
-#define MAX_KEYSELECTION sizeof(keyselection)/sizeof(keyselection[0])
+#define MAX_KEYSELECTION ARRAY_SIZE(keyselection)
 
 static uint8_t selectedkey_idx = 0;
 static keycodedescType selectedkey_rec;
diff --git a/keyboards/mechwild/murphpad/keymaps/jonavin/keymap.c b/keyboards/mechwild/murphpad/keymaps/jonavin/keymap.c
index b0288c5d7a..58db97d093 100644
--- a/keyboards/mechwild/murphpad/keymaps/jonavin/keymap.c
+++ b/keyboards/mechwild/murphpad/keymaps/jonavin/keymap.c
@@ -178,7 +178,7 @@ static const keycodedescType PROGMEM keyselection[] = {
         {"QK_BOOT",   QK_BOOT},   // firmware flash mode
 };
 
-#define MAX_KEYSELECTION sizeof(keyselection)/sizeof(keyselection[0])
+#define MAX_KEYSELECTION ARRAY_SIZE(keyselection)
 
 static uint8_t selectedkey_idx = 0;
 static keycodedescType selectedkey_rec;
diff --git a/keyboards/mechwild/puckbuddy/puckbuddy.c b/keyboards/mechwild/puckbuddy/puckbuddy.c
index b82d06f565..495cb7e825 100644
--- a/keyboards/mechwild/puckbuddy/puckbuddy.c
+++ b/keyboards/mechwild/puckbuddy/puckbuddy.c
@@ -16,7 +16,7 @@
 
 keyboard_config_t keyboard_config;
 uint16_t          dpi_array[] = GLIDEPOINT_DPI_OPTIONS;
-#define DPI_OPTION_SIZE (sizeof(dpi_array) / sizeof(uint16_t))
+#define DPI_OPTION_SIZE ARRAY_SIZE(dpi_array)
 
 void board_init(void) {
     // B9 is configured as I2C1_SDA in the board file; that function must be
diff --git a/keyboards/mitosis/keymaps/datagrok/keymap.c b/keyboards/mitosis/keymaps/datagrok/keymap.c
index 7c77eb882f..848af3de00 100644
--- a/keyboards/mitosis/keymaps/datagrok/keymap.c
+++ b/keyboards/mitosis/keymaps/datagrok/keymap.c
@@ -97,7 +97,7 @@ const bool defaultlayers[] = {
   [_xN] = false,
   [_xF] = false,
 };
-const size_t defaultlayers_n = sizeof(defaultlayers) / sizeof(defaultlayers[0]);
+const size_t defaultlayers_n = ARRAY_SIZE(defaultlayers);
 
 // New keycode KC_LAYO rotates between available default layers (for e.g.,
 // selecting a base layout). Shift+KC_LAYO makes the current one persistent.
diff --git a/keyboards/mwstudio/mw65_rgb/keymaps/horrortroll/keymap_stuff.h b/keyboards/mwstudio/mw65_rgb/keymaps/horrortroll/keymap_stuff.h
index c8b8015363..eea031698a 100644
--- a/keyboards/mwstudio/mw65_rgb/keymaps/horrortroll/keymap_stuff.h
+++ b/keyboards/mwstudio/mw65_rgb/keymaps/horrortroll/keymap_stuff.h
@@ -116,7 +116,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
     {{205, 250, 255}, {140, 215, 125}, false },
     };
 
-    uint8_t gp_length = sizeof(gradient_presets)/sizeof(gradient_presets[0]);
+    uint8_t gp_length = ARRAY_SIZE(gradient_presets);
 
     switch (keycode) {
         case G1_HUI:
diff --git a/keyboards/mxss/keymaps/default/keymap.c b/keyboards/mxss/keymaps/default/keymap.c
index 519547f15a..3b7150f7fa 100644
--- a/keyboards/mxss/keymaps/default/keymap.c
+++ b/keyboards/mxss/keymaps/default/keymap.c
@@ -27,7 +27,7 @@ hs_set layer_colors[4] = {
     [2] = {.hue = 36,    .sat = 255},  // Color for Layer 2
     [3] = {.hue = 185,   .sat = 255},  // Color for Layer 3
 };
-size_t lc_size = sizeof(layer_colors) / sizeof(uint16_t);
+size_t lc_size = ARRAY_SIZE(layer_colors);
 
 // Use NEW_SAFE_RANGE to define new custom keycodes in order to not overwrite the ones used for front LED control
 enum custom_keycodes {
diff --git a/keyboards/mxss/mxss_frontled.c b/keyboards/mxss/mxss_frontled.c
index 8bb93d5fd8..2ab9a27bea 100644
--- a/keyboards/mxss/mxss_frontled.c
+++ b/keyboards/mxss/mxss_frontled.c
@@ -36,7 +36,7 @@ __attribute__ ((weak))
 hs_set caps_color;
 
 __attribute__ ((weak))
-size_t lc_size = sizeof(layer_colors) / sizeof(hs_set);
+size_t lc_size = ARRAY_SIZE(layer_colors);
 
 void fled_init(void) {
     // This checks both an EEPROM reset (from bootmagic lite, keycodes)
diff --git a/keyboards/mxss/templates/keymap.c b/keyboards/mxss/templates/keymap.c
index a18cff77f0..48cab22852 100644
--- a/keyboards/mxss/templates/keymap.c
+++ b/keyboards/mxss/templates/keymap.c
@@ -27,7 +27,7 @@ hs_set layer_colors[4] = {
     [2] = {.hue = 36,    .sat = 255},  // Color for Layer 2
     [3] = {.hue = 185,   .sat = 255},  // Color for Layer 3
 };
-size_t lc_size = sizeof(layer_colors) / sizeof(uint16_t);
+size_t lc_size = ARRAY_SIZE(layer_colors);
 
 // Use NEW_SAFE_RANGE to define new custom keycodes in order to not overwrite the ones used for front LED control
 enum custom_keycodes {
diff --git a/keyboards/ploopyco/mouse/mouse.c b/keyboards/ploopyco/mouse/mouse.c
index 19bc17738e..abcaa276d9 100644
--- a/keyboards/ploopyco/mouse/mouse.c
+++ b/keyboards/ploopyco/mouse/mouse.c
@@ -49,7 +49,7 @@
 
 keyboard_config_t keyboard_config;
 uint16_t          dpi_array[] = PLOOPY_DPI_OPTIONS;
-#define DPI_OPTION_SIZE (sizeof(dpi_array) / sizeof(uint16_t))
+#define DPI_OPTION_SIZE ARRAY_SIZE(dpi_array)
 
 // TODO: Implement libinput profiles
 // https://wayland.freedesktop.org/libinput/doc/latest/pointer-acceleration.html
@@ -202,7 +202,7 @@ void keyboard_pre_init_kb(void) {
 #ifdef UNUSABLE_PINS
     const pin_t unused_pins[] = UNUSABLE_PINS;
 
-    for (uint8_t i = 0; i < (sizeof(unused_pins) / sizeof(pin_t)); i++) {
+    for (uint8_t i = 0; i < ARRAY_SIZE(unused_pins); i++) {
         setPinOutput(unused_pins[i]);
         writePinLow(unused_pins[i]);
     }
diff --git a/keyboards/ploopyco/trackball/trackball.c b/keyboards/ploopyco/trackball/trackball.c
index 786b40f9e8..c96bf15cba 100644
--- a/keyboards/ploopyco/trackball/trackball.c
+++ b/keyboards/ploopyco/trackball/trackball.c
@@ -49,7 +49,7 @@
 
 keyboard_config_t keyboard_config;
 uint16_t          dpi_array[] = PLOOPY_DPI_OPTIONS;
-#define DPI_OPTION_SIZE (sizeof(dpi_array) / sizeof(uint16_t))
+#define DPI_OPTION_SIZE ARRAY_SIZE(dpi_array)
 
 // TODO: Implement libinput profiles
 // https://wayland.freedesktop.org/libinput/doc/latest/pointer-acceleration.html
@@ -207,7 +207,7 @@ void keyboard_pre_init_kb(void) {
 #ifdef UNUSABLE_PINS
     const pin_t unused_pins[] = UNUSABLE_PINS;
 
-    for (uint8_t i = 0; i < (sizeof(unused_pins) / sizeof(pin_t)); i++) {
+    for (uint8_t i = 0; i < ARRAY_SIZE(unused_pins); i++) {
         setPinOutput(unused_pins[i]);
         writePinLow(unused_pins[i]);
     }
diff --git a/keyboards/ploopyco/trackball_mini/trackball_mini.c b/keyboards/ploopyco/trackball_mini/trackball_mini.c
index df13912af4..dc3708fd51 100644
--- a/keyboards/ploopyco/trackball_mini/trackball_mini.c
+++ b/keyboards/ploopyco/trackball_mini/trackball_mini.c
@@ -57,7 +57,7 @@
 
 keyboard_config_t keyboard_config;
 uint16_t          dpi_array[] = PLOOPY_DPI_OPTIONS;
-#define DPI_OPTION_SIZE (sizeof(dpi_array) / sizeof(uint16_t))
+#define DPI_OPTION_SIZE ARRAY_SIZE(dpi_array)
 
 // TODO: Implement libinput profiles
 // https://wayland.freedesktop.org/libinput/doc/latest/pointer-acceleration.html
@@ -203,7 +203,7 @@ void keyboard_pre_init_kb(void) {
 #ifdef UNUSABLE_PINS
     const pin_t unused_pins[] = UNUSABLE_PINS;
 
-    for (uint8_t i = 0; i < (sizeof(unused_pins) / sizeof(pin_t)); i++) {
+    for (uint8_t i = 0; i < ARRAY_SIZE(unused_pins); i++) {
         setPinOutput(unused_pins[i]);
         writePinLow(unused_pins[i]);
     }
diff --git a/keyboards/ploopyco/trackball_nano/trackball_nano.c b/keyboards/ploopyco/trackball_nano/trackball_nano.c
index eb1d8e10b0..366918e134 100644
--- a/keyboards/ploopyco/trackball_nano/trackball_nano.c
+++ b/keyboards/ploopyco/trackball_nano/trackball_nano.c
@@ -50,7 +50,7 @@
 
 keyboard_config_t keyboard_config;
 uint16_t          dpi_array[] = PLOOPY_DPI_OPTIONS;
-#define DPI_OPTION_SIZE (sizeof(dpi_array) / sizeof(uint16_t))
+#define DPI_OPTION_SIZE ARRAY_SIZE(dpi_array)
 
 void cycle_dpi(void) {
   keyboard_config.dpi_config = (keyboard_config.dpi_config + 1) % DPI_OPTION_SIZE;
@@ -89,7 +89,7 @@ void keyboard_pre_init_kb(void) {
 #ifdef UNUSABLE_PINS
     const pin_t unused_pins[] = UNUSABLE_PINS;
 
-    for (uint8_t i = 0; i < (sizeof(unused_pins) / sizeof(pin_t)); i++) {
+    for (uint8_t i = 0; i < ARRAY_SIZE(unused_pins); i++) {
         setPinOutput(unused_pins[i]);
         writePinLow(unused_pins[i]);
     }
diff --git a/keyboards/rgbkb/pan/pan.c b/keyboards/rgbkb/pan/pan.c
index c367550e49..6a17456390 100644
--- a/keyboards/rgbkb/pan/pan.c
+++ b/keyboards/rgbkb/pan/pan.c
@@ -51,7 +51,7 @@ static inline void setled(int i, uint8_t r, uint8_t g, uint8_t b) {
 }
 
 static void setled_all(uint8_t r, uint8_t g, uint8_t b) {
-    for (int i = 0; i < sizeof(rgb_matrix_ws2812_array) / sizeof(rgb_matrix_ws2812_array[0]); i++) {
+    for (int i = 0; i < ARRAY_SIZE(rgb_matrix_ws2812_array); i++) {
         setled(i, r, g, b);
     }
 }
diff --git a/keyboards/rgbkb/sol/keymaps/default/keymap.c b/keyboards/rgbkb/sol/keymaps/default/keymap.c
index 1ce18bc1ab..87241521ae 100644
--- a/keyboards/rgbkb/sol/keymaps/default/keymap.c
+++ b/keyboards/rgbkb/sol/keymaps/default/keymap.c
@@ -202,7 +202,7 @@ const rgb_matrix_f rgb_matrix_functions[6][2] = {
 #ifdef ENCODER_ENABLE
 
 static pin_t encoders_pad_a[] = ENCODERS_PAD_A;
-#define NUMBER_OF_ENCODERS (sizeof(encoders_pad_a)/sizeof(pin_t))
+#define NUMBER_OF_ENCODERS ARRAY_SIZE(encoders_pad_a)
 
 const uint16_t PROGMEM encoders[][NUMBER_OF_ENCODERS * 2][2]  = {
     [_QWERTY] = ENCODER_LAYOUT(
diff --git a/keyboards/rgbkb/sol/keymaps/xyverz/keymap.c b/keyboards/rgbkb/sol/keymaps/xyverz/keymap.c
index cdd0c6620a..d042a4fe27 100644
--- a/keyboards/rgbkb/sol/keymaps/xyverz/keymap.c
+++ b/keyboards/rgbkb/sol/keymaps/xyverz/keymap.c
@@ -232,7 +232,7 @@ const rgb_matrix_f rgb_matrix_functions[6][2] = {
 #ifdef ENCODER_ENABLE
 
 static pin_t encoders_pad_a[] = ENCODERS_PAD_A;
-#define NUMBER_OF_ENCODERS (sizeof(encoders_pad_a)/sizeof(pin_t))
+#define NUMBER_OF_ENCODERS ARRAY_SIZE(encoders_pad_a)
 
 const uint16_t PROGMEM encoders[][NUMBER_OF_ENCODERS * 2][2]  = {
     [_QWERTY] = ENCODER_LAYOUT( \
diff --git a/keyboards/rocketboard_16/keycode_lookup.c b/keyboards/rocketboard_16/keycode_lookup.c
index d967a03c31..cf25726880 100644
--- a/keyboards/rocketboard_16/keycode_lookup.c
+++ b/keyboards/rocketboard_16/keycode_lookup.c
@@ -18,7 +18,7 @@
 #include "print.h"
 #include "via.h"
 
-#define num_keycodes (sizeof(lookup_table)/sizeof(lookup_table[0]))
+#define num_keycodes ARRAY_SIZE(lookup_table)
 static char UNKNOWN_KEYCODE[] = "UNKNOWN";
 
 int cmp(const void *v1, const void *v2)
diff --git a/keyboards/torn/bongocat.c b/keyboards/torn/bongocat.c
index 21322c9536..9d6d9a85f5 100644
--- a/keyboards/torn/bongocat.c
+++ b/keyboards/torn/bongocat.c
@@ -18,8 +18,6 @@
 
 #ifdef OLED_ENABLE
 
-#define ARRAY_SIZE(array) (sizeof(array) / sizeof(array[0]))
-
 #define IDLE_SPEED 20 // idle below this wpm
 #define TAP_SPEED 60 // tap above this wpm
 
diff --git a/keyboards/tzarc/djinn/djinn_portscan_matrix.c b/keyboards/tzarc/djinn/djinn_portscan_matrix.c
index f0ae9721f9..6fcfd48bba 100644
--- a/keyboards/tzarc/djinn/djinn_portscan_matrix.c
+++ b/keyboards/tzarc/djinn/djinn_portscan_matrix.c
@@ -92,11 +92,11 @@ bool matrix_scan_custom(matrix_row_t current_matrix[]) {
 
 void matrix_wait_for_interrupt(void) {
     // Set up row/col pins and attach callback
-    for (int i = 0; i < sizeof(col_pins) / sizeof(pin_t); ++i) {
+    for (int i = 0; i < ARRAY_SIZE(col_pins); ++i) {
         setPinOutput(col_pins[i]);
         writePinLow(col_pins[i]);
     }
-    for (int i = 0; i < sizeof(row_pins) / sizeof(pin_t); ++i) {
+    for (int i = 0; i < ARRAY_SIZE(row_pins); ++i) {
         setPinInputHigh(row_pins[i]);
         palEnableLineEvent(row_pins[i], PAL_EVENT_MODE_BOTH_EDGES);
     }
@@ -105,12 +105,12 @@ void matrix_wait_for_interrupt(void) {
     __WFI();
 
     // Now that the interrupt has woken us up, reset all the row/col pins back to defaults
-    for (int i = 0; i < sizeof(row_pins) / sizeof(pin_t); ++i) {
+    for (int i = 0; i < ARRAY_SIZE(row_pins); ++i) {
         palDisableLineEvent(row_pins[i]);
         writePinHigh(row_pins[i]);
         setPinInputHigh(row_pins[i]);
     }
-    for (int i = 0; i < sizeof(col_pins) / sizeof(pin_t); ++i) {
+    for (int i = 0; i < ARRAY_SIZE(col_pins); ++i) {
         writePinHigh(col_pins[i]);
         setPinInputHigh(col_pins[i]);
     }
diff --git a/keyboards/ymdk/melody96/keymaps/konstantin/keymap.c b/keyboards/ymdk/melody96/keymaps/konstantin/keymap.c
index 1ee7ca1e77..cc6cbd90c2 100644
--- a/keyboards/ymdk/melody96/keymaps/konstantin/keymap.c
+++ b/keyboards/ymdk/melody96/keymaps/konstantin/keymap.c
@@ -2,7 +2,7 @@
 #include "konstantin.h"
 
 static const HSV *colors[] = { &godspeed_blue, &godspeed_yellow };
-static const size_t cnum = sizeof colors / sizeof *colors;
+static const size_t cnum = ARRAY_SIZE(colors);
 static size_t cidx = 0;
 
 enum keycodes_keymap {