diff options
| author | Kees Cook <keescook@chromium.org> | 2024-01-30 14:12:55 -0800 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2024-02-06 02:21:38 -0800 |
| commit | 30edbdf9b98ddc9087f5f8b9a9644fa5c05fa5b1 (patch) | |
| tree | ca2a60555c0217a9160f79c9f020d135e3744209 | |
| parent | 167ebeda36fae4bb47ace32bcacecde7d24d2850 (diff) | |
ubsan: Silence W=1 warnings in self-test
Silence a handful of W=1 warnings in the UBSan selftest, which set
variables without using them. For example:
lib/test_ubsan.c:101:6: warning: variable 'val1' set but not used [-Wunused-but-set-variable]
101 | int val1 = 10;
| ^
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202401310423.XpCIk6KO-lkp@intel.com/
Reviewed-by: Marco Elver <elver@google.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
| -rw-r--r-- | lib/Makefile | 1 | ||||
| -rw-r--r-- | lib/test_ubsan.c | 4 |
2 files changed, 3 insertions, 2 deletions
diff --git a/lib/Makefile b/lib/Makefile index 6b09731d8e61..bc36a5c167db 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -69,6 +69,7 @@ obj-$(CONFIG_HASH_KUNIT_TEST) += test_hash.o obj-$(CONFIG_TEST_IDA) += test_ida.o obj-$(CONFIG_TEST_UBSAN) += test_ubsan.o CFLAGS_test_ubsan.o += $(call cc-disable-warning, vla) +CFLAGS_test_ubsan.o += $(call cc-disable-warning, unused-but-set-variable) UBSAN_SANITIZE_test_ubsan.o := y obj-$(CONFIG_TEST_KSTRTOX) += test-kstrtox.o obj-$(CONFIG_TEST_LIST_SORT) += test_list_sort.o diff --git a/lib/test_ubsan.c b/lib/test_ubsan.c index 2062be1f2e80..f4ee2484d4b5 100644 --- a/lib/test_ubsan.c +++ b/lib/test_ubsan.c @@ -23,8 +23,8 @@ static void test_ubsan_divrem_overflow(void) static void test_ubsan_shift_out_of_bounds(void) { volatile int neg = -1, wrap = 4; - int val1 = 10; - int val2 = INT_MAX; + volatile int val1 = 10; + volatile int val2 = INT_MAX; UBSAN_TEST(CONFIG_UBSAN_SHIFT, "negative exponent"); val1 <<= neg; |