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authorEugenio Pérez <eperezma@redhat.com>2021-10-13 20:27:13 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2021-11-02 15:57:21 +0100
commita89b34be5e2550949979c3184d00d5ab3e8dd707 (patch)
tree75f568ba7b6dc3ff3e165b68aacb1f4cce4ae7df /util/iova-tree.c
parent984099911275cd4b703e0d9c35b37dd52928acdd (diff)
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util: Make some iova_tree parameters const
As qemu guidelines: Unless a pointer is used to modify the pointed-to storage, give it the "const" attribute. In the particular case of iova_tree_find it allows to enforce what is requested by its comment, since the compiler would shout in case of modifying or freeing the const-qualified returned pointer. Signed-off-by: Eugenio Pérez <eperezma@redhat.com> Acked-by: Peter Xu <peterx@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20211013182713.888753-2-eperezma@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'util/iova-tree.c')
-rw-r--r--util/iova-tree.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/util/iova-tree.c b/util/iova-tree.c
index 7990692..23ea35b 100644
--- a/util/iova-tree.c
+++ b/util/iova-tree.c
@@ -42,14 +42,14 @@ IOVATree *iova_tree_new(void)
return iova_tree;
}
-DMAMap *iova_tree_find(IOVATree *tree, DMAMap *map)
+const DMAMap *iova_tree_find(const IOVATree *tree, const DMAMap *map)
{
return g_tree_lookup(tree->tree, map);
}
-DMAMap *iova_tree_find_address(IOVATree *tree, hwaddr iova)
+const DMAMap *iova_tree_find_address(const IOVATree *tree, hwaddr iova)
{
- DMAMap map = { .iova = iova, .size = 0 };
+ const DMAMap map = { .iova = iova, .size = 0 };
return iova_tree_find(tree, &map);
}
@@ -60,7 +60,7 @@ static inline void iova_tree_insert_internal(GTree *gtree, DMAMap *range)
g_tree_insert(gtree, range, range);
}
-int iova_tree_insert(IOVATree *tree, DMAMap *map)
+int iova_tree_insert(IOVATree *tree, const DMAMap *map)
{
DMAMap *new;
@@ -96,9 +96,9 @@ void iova_tree_foreach(IOVATree *tree, iova_tree_iterator iterator)
g_tree_foreach(tree->tree, iova_tree_traverse, iterator);
}
-int iova_tree_remove(IOVATree *tree, DMAMap *map)
+int iova_tree_remove(IOVATree *tree, const DMAMap *map)
{
- DMAMap *overlap;
+ const DMAMap *overlap;
while ((overlap = iova_tree_find(tree, map))) {
g_tree_remove(tree->tree, overlap);