11f5207b7SJohn Levon static int foo(void) __attribute__((unknown_attribute));
21f5207b7SJohn Levon 
31f5207b7SJohn Levon /*
41f5207b7SJohn Levon  * check-name: warn-unknown-attribute-yes
51f5207b7SJohn Levon  * check-command: sparse -Wunknown-attribute $file
61f5207b7SJohn Levon  *
71f5207b7SJohn Levon  * check-error-start
8*c85f09ccSJohn Levon Wunknown-attribute-yes.c:1:37: warning: unknown attribute 'unknown_attribute'
91f5207b7SJohn Levon  * check-error-end
101f5207b7SJohn Levon  */
11