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authorIngo Molnar <mingo@kernel.org>2023-12-23 17:52:13 +0300
committerIngo Molnar <mingo@kernel.org>2023-12-23 17:52:13 +0300
commitd2e9f53ac5dd76dadc0b5f04f6c27640604ce2af (patch)
treebf82d9fbfdc2ce67630fdacc18c2231f3d17876a /scripts/gcc-plugins/randomize_layout_plugin.c
parent418146e39891ef1fb2284dee4cabbfe616cd21cf (diff)
parentceb6a6f023fd3e8b07761ed900352ef574010bcb (diff)
downloadlinux-d2e9f53ac5dd76dadc0b5f04f6c27640604ce2af.tar.xz
Merge tag 'v6.7-rc6' into sched/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'scripts/gcc-plugins/randomize_layout_plugin.c')
-rw-r--r--scripts/gcc-plugins/randomize_layout_plugin.c13
1 files changed, 1 insertions, 12 deletions
diff --git a/scripts/gcc-plugins/randomize_layout_plugin.c b/scripts/gcc-plugins/randomize_layout_plugin.c
index 366395cab490..746ff2d272f2 100644
--- a/scripts/gcc-plugins/randomize_layout_plugin.c
+++ b/scripts/gcc-plugins/randomize_layout_plugin.c
@@ -278,8 +278,6 @@ static bool is_flexible_array(const_tree field)
{
const_tree fieldtype;
const_tree typesize;
- const_tree elemtype;
- const_tree elemsize;
fieldtype = TREE_TYPE(field);
typesize = TYPE_SIZE(fieldtype);
@@ -287,20 +285,12 @@ static bool is_flexible_array(const_tree field)
if (TREE_CODE(fieldtype) != ARRAY_TYPE)
return false;
- elemtype = TREE_TYPE(fieldtype);
- elemsize = TYPE_SIZE(elemtype);
-
/* size of type is represented in bits */
if (typesize == NULL_TREE && TYPE_DOMAIN(fieldtype) != NULL_TREE &&
TYPE_MAX_VALUE(TYPE_DOMAIN(fieldtype)) == NULL_TREE)
return true;
- if (typesize != NULL_TREE &&
- (TREE_CONSTANT(typesize) && (!tree_to_uhwi(typesize) ||
- tree_to_uhwi(typesize) == tree_to_uhwi(elemsize))))
- return true;
-
return false;
}
@@ -349,8 +339,7 @@ static int relayout_struct(tree type)
/*
* enforce that we don't randomize the layout of the last
- * element of a struct if it's a 0 or 1-length array
- * or a proper flexible array
+ * element of a struct if it's a proper flexible array
*/
if (is_flexible_array(newtree[num_fields - 1])) {
has_flexarray = true;