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Message-ID: <281a65cc361512e3dc6c5deffa324f800eb907be.1564595346.git.kjw1627@gmail.com>
Date: Thu, 1 Aug 2019 03:01:49 +0900
From: Joonwon Kang <kjw1627@...il.com>
To: keescook@...omium.org
Cc: re.emese@...il.com, kernel-hardening@...ts.openwall.com,
linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
jinb.park7@...il.com
Subject: [PATCH 2/2] randstruct: remove dead code in is_pure_ops_struct()
Recursive declaration for struct which has member of the same struct
type, for example,
struct foo {
struct foo f;
...
};
is not allowed. So, it is unnecessary to check if a struct has this
kind of member.
Signed-off-by: Joonwon Kang <kjw1627@...il.com>
---
scripts/gcc-plugins/randomize_layout_plugin.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/scripts/gcc-plugins/randomize_layout_plugin.c b/scripts/gcc-plugins/randomize_layout_plugin.c
index bd29e4e7a524..e14efe23e645 100644
--- a/scripts/gcc-plugins/randomize_layout_plugin.c
+++ b/scripts/gcc-plugins/randomize_layout_plugin.c
@@ -440,9 +440,6 @@ static int is_pure_ops_struct(const_tree node)
const_tree fieldtype = get_field_type(field);
enum tree_code code = TREE_CODE(fieldtype);
- if (node == fieldtype)
- continue;
-
if (code == RECORD_TYPE || code == UNION_TYPE) {
if (!is_pure_ops_struct(fieldtype))
return 0;
--
2.17.1
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