mm_free(): accept const void *

Sometimes it's useful to express that pointed-to memory is constant,
and free-like functions then just cause extra unreadability.

diff --git a/lib/utils.h b/lib/utils.h
index 1e6cb16ff719651e0c3481ad4253f2de856673ec..db6f5317a824d86bf4fc434b02e6ae804d1632c9 100644 (file)
--- a/lib/utils.h
+++ b/lib/utils.h
@@ -103,13 +103,13 @@ static inline void *mm_alloc(knot_mm_t *mm, size_t size)
        if (mm) return mm->alloc(mm->ctx, size);
        else return malloc(size);
 }
-static inline void mm_free(knot_mm_t *mm, void *what)
+static inline void mm_free(knot_mm_t *mm, const void *what)
 {
        if (mm) {
                if (mm->free)
-                       mm->free(what);
+                       mm->free((void *)what);
        }
-       else free(what);
+       else free((void *)what);
 }
 static inline void *mm_realloc(knot_mm_t *mm, void *what, size_t size, size_t prev_size)
 {