Re: [PATCH v2 03/34] compiler-capability-analysis: Add test stub

[Bart Van Assche]

On 3/4/25 1:21 AM, Marco Elver wrote:

+#include <linux/build_bug.h>
+
+/*
+ * Test that helper macros work as expected.
+ */
+static void __used test_common_helpers(void)
+{
+       BUILD_BUG_ON(capability_unsafe(3) != 3); /* plain expression */
+       BUILD_BUG_ON(capability_unsafe((void)2; 3;) != 3); /* does not swallow 
semi-colon */
+       BUILD_BUG_ON(capability_unsafe((void)2, 3) != 3); /* does not swallow 
commas */
+       capability_unsafe(do { } while (0)); /* works with void statements */
+}

Is it guaranteed that <linux/build_bug.h> includes the header file that
defines capability_unsafe() or should that header file perhaps be
included explicitly?

Thanks,

Bart.