diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c
index d36788119b8bf..f80d6fce28d2d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c
@@ -13,8 +13,8 @@ int mlx5_ktls_create_key(struct mlx5_core_dev *mdev,
 			 struct tls_crypto_info *crypto_info,
 			 u32 *p_key_id)
 {
+	const void *key;
 	u32 sz_bytes;
-	void *key;
 
 	switch (crypto_info->cipher_type) {
 	case TLS_CIPHER_AES_GCM_128: {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/crypto.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/crypto.c
index 02bc365efade4..bc2a72491e101 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lib/crypto.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/crypto.c
@@ -10,7 +10,7 @@ struct mlx5_crypto_dek_priv {
 };
 
 int mlx5_create_encryption_key(struct mlx5_core_dev *mdev,
-			       void *key, u32 sz_bytes,
+			       const void *key, u32 sz_bytes,
 			       u32 key_type, u32 *p_key_id)
 {
 	u32 in[MLX5_ST_SZ_DW(create_encryption_key_in)] = {};
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/crypto.h b/drivers/net/ethernet/mellanox/mlx5/core/lib/crypto.h
index 5968536047caf..ee3ed8c863d19 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lib/crypto.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/crypto.h
@@ -11,7 +11,7 @@ enum {
 };
 
 int mlx5_create_encryption_key(struct mlx5_core_dev *mdev,
-			       void *key, u32 sz_bytes,
+			       const void *key, u32 sz_bytes,
 			       u32 key_type, u32 *p_key_id);
 
 void mlx5_destroy_encryption_key(struct mlx5_core_dev *mdev, u32 key_id);