[PATCH 6.12.y 2/4] HID: pidff: Use ARRAY_SIZE macro instead of sizeof

[Sasha Levin <sashal@kernel.org>]

From: Tomasz Pakuła <tomasz.pakula.oficjalny@gmail.com>

[ Upstream commit 8de2cef6d0de8cdddee8d653a18791525af26fad ]

Could lead to issues when arrays won't be 8 bit fields

Signed-off-by: Tomasz Pakuła <tomasz.pakula.oficjalny@gmail.com>
Reviewed-by: Oleg Makarenko <oleg@makarenk.ooo>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Stable-dep-of: 67bb1074e3d2 ("HID: pidff: fix OOB write when hid->inputs is empty")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hid/usbhid/hid-pidff.c | 46 +++++++++++++++++-----------------
 1 file changed, 23 insertions(+), 23 deletions(-)

diff --git a/drivers/hid/usbhid/hid-pidff.c b/drivers/hid/usbhid/hid-pidff.c
index 471dbc8fabc98..fe5462a19df38 100644
--- a/drivers/hid/usbhid/hid-pidff.c
+++ b/drivers/hid/usbhid/hid-pidff.c
@@ -158,20 +158,20 @@ struct pidff_usage {
 struct pidff_device {
 	struct hid_device *hid;
 
-	struct hid_report *reports[sizeof(pidff_reports)];
+	struct hid_report *reports[ARRAY_SIZE(pidff_reports)];
 
-	struct pidff_usage set_effect[sizeof(pidff_set_effect)];
-	struct pidff_usage set_envelope[sizeof(pidff_set_envelope)];
-	struct pidff_usage set_condition[sizeof(pidff_set_condition)];
-	struct pidff_usage set_periodic[sizeof(pidff_set_periodic)];
-	struct pidff_usage set_constant[sizeof(pidff_set_constant)];
-	struct pidff_usage set_ramp[sizeof(pidff_set_ramp)];
+	struct pidff_usage set_effect[ARRAY_SIZE(pidff_set_effect)];
+	struct pidff_usage set_envelope[ARRAY_SIZE(pidff_set_envelope)];
+	struct pidff_usage set_condition[ARRAY_SIZE(pidff_set_condition)];
+	struct pidff_usage set_periodic[ARRAY_SIZE(pidff_set_periodic)];
+	struct pidff_usage set_constant[ARRAY_SIZE(pidff_set_constant)];
+	struct pidff_usage set_ramp[ARRAY_SIZE(pidff_set_ramp)];
 
-	struct pidff_usage device_gain[sizeof(pidff_device_gain)];
-	struct pidff_usage block_load[sizeof(pidff_block_load)];
-	struct pidff_usage pool[sizeof(pidff_pool)];
-	struct pidff_usage effect_operation[sizeof(pidff_effect_operation)];
-	struct pidff_usage block_free[sizeof(pidff_block_free)];
+	struct pidff_usage device_gain[ARRAY_SIZE(pidff_device_gain)];
+	struct pidff_usage block_load[ARRAY_SIZE(pidff_block_load)];
+	struct pidff_usage pool[ARRAY_SIZE(pidff_pool)];
+	struct pidff_usage effect_operation[ARRAY_SIZE(pidff_effect_operation)];
+	struct pidff_usage block_free[ARRAY_SIZE(pidff_block_free)];
 
 	/*
 	 * Special field is a field that is not composed of
@@ -194,10 +194,10 @@ struct pidff_device {
 	/* Special field in effect_operation */
 	struct hid_field *effect_operation_status;
 
-	int control_id[sizeof(pidff_device_control)];
-	int type_id[sizeof(pidff_effect_types)];
-	int status_id[sizeof(pidff_block_load_status)];
-	int operation_id[sizeof(pidff_effect_operation_status)];
+	int control_id[ARRAY_SIZE(pidff_device_control)];
+	int type_id[ARRAY_SIZE(pidff_effect_types)];
+	int status_id[ARRAY_SIZE(pidff_block_load_status)];
+	int operation_id[ARRAY_SIZE(pidff_effect_operation_status)];
 
 	int pid_id[PID_EFFECTS_MAX];
 
@@ -642,7 +642,7 @@ static void pidff_set_device_control(struct pidff_device *pidff, int field)
 		hid_dbg(pidff->hid, "DEVICE_CONTROL is a bitmask\n");
 
 		/* Clear current bitmask */
-		for (i = 0; i < sizeof(pidff_device_control); i++) {
+		for (i = 0; i < ARRAY_SIZE(pidff_device_control); i++) {
 			index = pidff->control_id[i];
 			if (index < 1)
 				continue;
@@ -1002,7 +1002,7 @@ static int pidff_check_usage(int usage)
 {
 	int i;
 
-	for (i = 0; i < sizeof(pidff_reports); i++)
+	for (i = 0; i < ARRAY_SIZE(pidff_reports); i++)
 		if (usage == (HID_UP_PID | pidff_reports[i]))
 			return i;
 
@@ -1121,7 +1121,7 @@ static int pidff_find_special_keys(int *keys, struct hid_field *fld,
 
 #define PIDFF_FIND_SPECIAL_KEYS(keys, field, name) \
 	pidff_find_special_keys(pidff->keys, pidff->field, pidff_ ## name, \
-		sizeof(pidff_ ## name))
+		ARRAY_SIZE(pidff_ ## name))
 
 /*
  * Find and check the special fields
@@ -1196,7 +1196,7 @@ static int pidff_find_special_fields(struct pidff_device *pidff)
 
 	if (PIDFF_FIND_SPECIAL_KEYS(status_id, block_load_status,
 				    block_load_status) !=
-			sizeof(pidff_block_load_status)) {
+			ARRAY_SIZE(pidff_block_load_status)) {
 		hid_err(pidff->hid,
 			"block load status identifiers not found\n");
 		return -1;
@@ -1204,7 +1204,7 @@ static int pidff_find_special_fields(struct pidff_device *pidff)
 
 	if (PIDFF_FIND_SPECIAL_KEYS(operation_id, effect_operation_status,
 				    effect_operation_status) !=
-			sizeof(pidff_effect_operation_status)) {
+			ARRAY_SIZE(pidff_effect_operation_status)) {
 		hid_err(pidff->hid, "effect operation identifiers not found\n");
 		return -1;
 	}
@@ -1220,7 +1220,7 @@ static int pidff_find_effects(struct pidff_device *pidff,
 {
 	int i;
 
-	for (i = 0; i < sizeof(pidff_effect_types); i++) {
+	for (i = 0; i < ARRAY_SIZE(pidff_effect_types); i++) {
 		int pidff_type = pidff->type_id[i];
 
 		if (pidff->set_effect_type->usage[pidff_type].hid !=
@@ -1270,7 +1270,7 @@ static int pidff_find_effects(struct pidff_device *pidff,
 #define PIDFF_FIND_FIELDS(name, report, strict) \
 	pidff_find_fields(pidff->name, pidff_ ## name, \
 		pidff->reports[report], \
-		sizeof(pidff_ ## name), strict)
+		ARRAY_SIZE(pidff_ ## name), strict)
 
 /*
  * Fill and check the pidff_usages
-- 
2.53.0