memory: Make flatview_cb return bool, not int

The return value of the flatview_cb callback passed to the
flatview_for_each_range() function is zero if the iteration through
the ranges should continue, or non-zero to break out of it.  Use a
bool for this rather than int.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20210318174823.18066-2-peter.maydell@linaro.org

include/exec/memory.h

@@ -776,9 +776,9 @@ static inline FlatView *address_space_to_flatview(AddressSpace *as)
     return qatomic_rcu_read(&as->current_map);
 }
 
-typedef int (*flatview_cb)(Int128 start,
-                           Int128 len,
-                           const MemoryRegion*, void*);
+typedef bool (*flatview_cb)(Int128 start,
+                            Int128 len,
+                            const MemoryRegion*, void*);
 
 void flatview_for_each_range(FlatView *fv, flatview_cb cb , void *opaque);
 

tests/qtest/fuzz/generic_fuzz.c

@@ -98,19 +98,19 @@ struct get_io_cb_info {
     address_range result;
 };
 
-static int get_io_address_cb(Int128 start, Int128 size,
-                          const MemoryRegion *mr, void *opaque) {
+static bool get_io_address_cb(Int128 start, Int128 size,
+                              const MemoryRegion *mr, void *opaque) {
     struct get_io_cb_info *info = opaque;
     if (g_hash_table_lookup(fuzzable_memoryregions, mr)) {
         if (info->index == 0) {
             info->result.addr = (ram_addr_t)start;
             info->result.size = (ram_addr_t)size;
             info->found = 1;
-            return 1;
+            return true;
         }
         info->index--;
     }
-    return 0;
+    return false;
 }
 
 /*