On Fri, 19 Aug 2022, Ira Weiny wrote:
Did you mean "must"?
Yep.
+ * such as those which caches are in a consistent state. The + * caller can verify the situation early on. + */ +#ifndef flush_all_caches +# define flush_all_caches_capable() false +static inline void flush_all_caches(void) +{ + WARN_ON_ONCE("cache invalidation required\n"); +}With the addition of flush_all_caches_capable() will flush_all_caches() ever be called?
No, it should not. Hence you get a splat if you call it bogusly.
