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authorKees Cook <kees@kernel.org>2025-01-27 22:10:26 +0300
committerKees Cook <kees@kernel.org>2025-01-30 19:48:28 +0300
commitad9f265c7328d9d73a9d1edbd52f4415cc764296 (patch)
treee9f173a636534db348a290f02aca4f3a7db93afc /lib
parenta9a5e0bdc5a77a7c662ad4be0ad661f0b0d5e99d (diff)
downloadlinux-ad9f265c7328d9d73a9d1edbd52f4415cc764296.tar.xz
stackinit: Add old-style zero-init syntax to struct tests
The deprecated way to do a full zero init of a structure is with "= { 0 }", but we weren't testing this style. Add it. Link: https://lore.kernel.org/r/20250127191031.245214-1-kees@kernel.org Signed-off-by: Kees Cook <kees@kernel.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/stackinit_kunit.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/stackinit_kunit.c b/lib/stackinit_kunit.c
index c40818ec9c18..7cc9af181e89 100644
--- a/lib/stackinit_kunit.c
+++ b/lib/stackinit_kunit.c
@@ -101,6 +101,7 @@ static bool stackinit_range_contains(char *haystack_start, size_t haystack_size,
#define INIT_STRUCT_none(var_type) /**/
#define INIT_STRUCT_zero(var_type) = { }
+#define INIT_STRUCT_old_zero(var_type) = { 0 }
#define __static_partial { .two = 0, }
@@ -346,6 +347,7 @@ struct test_user {
/* These should be fully initialized all the time! */
DEFINE_SCALAR_TESTS(zero, ALWAYS_PASS);
DEFINE_STRUCT_TESTS(zero, ALWAYS_PASS);
+DEFINE_STRUCT_TESTS(old_zero, ALWAYS_PASS);
/* Struct initializers: padding may be left uninitialized. */
DEFINE_STRUCT_INITIALIZER_TESTS(static, STRONG_PASS);
DEFINE_STRUCT_INITIALIZER_TESTS(dynamic, STRONG_PASS);
@@ -440,6 +442,7 @@ static struct kunit_case stackinit_test_cases[] = {
/* These are explicitly initialized and should always pass. */
KUNIT_test_scalars(zero),
KUNIT_test_structs(zero),
+ KUNIT_test_structs(old_zero),
/* Padding here appears to be accidentally always initialized? */
KUNIT_test_structs(dynamic_partial),
KUNIT_test_structs(assigned_dynamic_partial),