valgrind: Rework test for unsupported platforms
Change things so that on an unsupported platform we will #error rather
than undef the feature.
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/include/valgrind/valgrind.h b/include/valgrind/valgrind.h
index e59a7fd..5d4fa5f 100644
--- a/include/valgrind/valgrind.h
+++ b/include/valgrind/valgrind.h
@@ -121,7 +121,9 @@
#else
/* If we're not compiling for our target platform, don't generate
any inline asms. */
-# undef CONFIG_VALGRIND
+# if IS_ENABLED(CONFIG_VALGRIND)
+# error "Unsupported platform for valgrind"
+# endif
#endif