diff --git a/client/common/client.c b/client/common/client.c
index 4dbe3e075..1e4eed0aa 100644
--- a/client/common/client.c
+++ b/client/common/client.c
@@ -572,8 +572,8 @@ BOOL client_cli_authenticate_ex(freerdp* instance, char** username, char** passw
 	return client_cli_authenticate_raw(instance, reason, username, password, domain);
 }
 
-BOOL client_cli_choose_smartcard(freerdp* instance, SmartcardCertInfo** cert_list, DWORD count,
-                                 DWORD* choice, BOOL gateway)
+BOOL client_cli_choose_smartcard(WINPR_ATTR_UNUSED freerdp* instance, SmartcardCertInfo** cert_list,
+                                 DWORD count, DWORD* choice, BOOL gateway)
 {
 	unsigned long answer = 0;
 	char* p = NULL;
diff --git a/client/common/client_cliprdr_file.c b/client/common/client_cliprdr_file.c
index 6509cc712..11b9b55cb 100644
--- a/client/common/client_cliprdr_file.c
+++ b/client/common/client_cliprdr_file.c
@@ -379,7 +379,7 @@ static BOOL maybe_steal_inode(const void* key, void* value, void* arg)
 	return TRUE;
 }
 
-static BOOL notify_delete_child(void* data, size_t index, va_list ap)
+static BOOL notify_delete_child(void* data, WINPR_ATTR_UNUSED size_t index, va_list ap)
 {
 	CliprdrFuseFile* child = data;
 
@@ -398,7 +398,7 @@ static BOOL notify_delete_child(void* data, size_t index, va_list ap)
 	return TRUE;
 }
 
-static BOOL invalidate_inode(void* data, size_t index, va_list ap)
+static BOOL invalidate_inode(void* data, WINPR_ATTR_UNUSED size_t index, va_list ap)
 {
 	CliprdrFuseFile* fuse_file = data;
 
@@ -517,7 +517,8 @@ static void clear_no_cdi_entry(CliprdrFileContext* file_context)
 	HashTable_Unlock(file_context->inode_table);
 }
 
-static BOOL clear_clip_data_entries(const void* key, void* value, void* arg)
+static BOOL clear_clip_data_entries(WINPR_ATTR_UNUSED const void* key, void* value,
+                                    WINPR_ATTR_UNUSED void* arg)
 {
 	clear_entry_selection(value);
 
@@ -657,8 +658,9 @@ static CliprdrFuseFile* get_fuse_file_by_ino(CliprdrFileContext* file_context, f
 	return HashTable_GetItemValue(file_context->inode_table, (void*)(uintptr_t)fuse_ino);
 }
 
-static CliprdrFuseFile* get_fuse_file_by_name_from_parent(CliprdrFileContext* file_context,
-                                                          CliprdrFuseFile* parent, const char* name)
+static CliprdrFuseFile*
+get_fuse_file_by_name_from_parent(WINPR_ATTR_UNUSED CliprdrFileContext* file_context,
+                                  CliprdrFuseFile* parent, const char* name)
 {
 	WINPR_ASSERT(file_context);
 	WINPR_ASSERT(parent);
@@ -834,7 +836,7 @@ static void cliprdr_file_fuse_lookup(fuse_req_t fuse_req, fuse_ino_t parent_ino,
 }
 
 static void cliprdr_file_fuse_getattr(fuse_req_t fuse_req, fuse_ino_t fuse_ino,
-                                      struct fuse_file_info* file_info)
+                                      WINPR_ATTR_UNUSED struct fuse_file_info* file_info)
 {
 	CliprdrFileContext* file_context = fuse_req_userdata(fuse_req);
 	CliprdrFuseFile* fuse_file = NULL;
@@ -956,7 +958,7 @@ static BOOL request_file_range_async(CliprdrFileContext* file_context, CliprdrFu
 }
 
 static void cliprdr_file_fuse_read(fuse_req_t fuse_req, fuse_ino_t fuse_ino, size_t size,
-                                   off_t offset, struct fuse_file_info* file_info)
+                                   off_t offset, WINPR_ATTR_UNUSED struct fuse_file_info* file_info)
 {
 	CliprdrFileContext* file_context = fuse_req_userdata(fuse_req);
 	CliprdrFuseFile* fuse_file = NULL;
@@ -1026,7 +1028,8 @@ static void cliprdr_file_fuse_opendir(fuse_req_t fuse_req, fuse_ino_t fuse_ino,
 }
 
 static void cliprdr_file_fuse_readdir(fuse_req_t fuse_req, fuse_ino_t fuse_ino, size_t max_size,
-                                      off_t offset, struct fuse_file_info* file_info)
+                                      off_t offset,
+                                      WINPR_ATTR_UNUSED struct fuse_file_info* file_info)
 {
 	CliprdrFileContext* file_context = fuse_req_userdata(fuse_req);
 	CliprdrFuseFile* fuse_file = NULL;
@@ -1317,7 +1320,7 @@ cliprdr_file_context_send_contents_response(CliprdrFileContext* file,
 	return file->context->ClientFileContentsResponse(file->context, &response);
 }
 
-static BOOL dump_streams(const void* key, void* value, void* arg)
+static BOOL dump_streams(const void* key, void* value, WINPR_ATTR_UNUSED void* arg)
 {
 	const UINT32* ukey = key;
 	CliprdrLocalStream* cur = value;
@@ -1767,7 +1770,7 @@ static char* get_parent_path(const char* filepath)
 	return parent_path;
 }
 
-static BOOL is_fuse_file_not_parent(const void* key, void* value, void* arg)
+static BOOL is_fuse_file_not_parent(WINPR_ATTR_UNUSED const void* key, void* value, void* arg)
 {
 	CliprdrFuseFile* fuse_file = value;
 	CliprdrFuseFindParentContext* find_context = arg;
diff --git a/client/common/cmdline.c b/client/common/cmdline.c
index bb1f2bcaf..6faabe6f9 100644
--- a/client/common/cmdline.c
+++ b/client/common/cmdline.c
@@ -1475,7 +1475,7 @@ BOOL freerdp_set_connection_type(rdpSettings* settings, UINT32 type)
 	return TRUE;
 }
 
-static UINT32 freerdp_get_keyboard_layout_for_type(const char* name, DWORD type)
+static UINT32 freerdp_get_keyboard_layout_for_type(const char* name, WINPR_ATTR_UNUSED DWORD type)
 {
 	UINT32 res = 0;
 	size_t count = 0;
@@ -2010,7 +2010,7 @@ static BOOL prepare_default_settings(rdpSettings* settings, COMMAND_LINE_ARGUMEN
 	return freerdp_set_connection_type(settings, CONNECTION_TYPE_AUTODETECT);
 }
 
-static BOOL setSmartcardEmulation(const char* value, rdpSettings* settings)
+static BOOL setSmartcardEmulation(WINPR_ATTR_UNUSED const char* value, rdpSettings* settings)
 {
 	return freerdp_settings_set_bool(settings, FreeRDP_SmartcardEmulation, TRUE);
 }
@@ -5426,7 +5426,7 @@ static int parse_command_line(rdpSettings* settings, const COMMAND_LINE_ARGUMENT
 
 static int freerdp_client_settings_parse_command_line_arguments_int(
     rdpSettings* settings, int argc, char* argv[], BOOL allowUnknown,
-    COMMAND_LINE_ARGUMENT_A* largs, size_t count,
+    COMMAND_LINE_ARGUMENT_A* largs, WINPR_ATTR_UNUSED size_t count,
     freerdp_command_line_handle_option_t handle_option, void* handle_userdata)
 {
 	char* user = NULL;